blob: 01d542007c8b1210b9fbf348bfb8ccafb849c645 [file] [log] [blame]
Arnaldo Carvalho de Meloa598bb52015-08-28 12:02:37 -03001/*
2 * builtin-trace.c
3 *
4 * Builtin 'trace' command:
5 *
6 * Display a continuously updated trace of any workload, CPU, specific PID,
7 * system wide, etc. Default format is loosely strace like, but any other
8 * event may be specified using --event.
9 *
10 * Copyright (C) 2012, 2013, 2014, 2015 Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
11 *
12 * Initially based on the 'trace' prototype by Thomas Gleixner:
13 *
14 * http://lwn.net/Articles/415728/ ("Announcing a new utility: 'trace'")
Arnaldo Carvalho de Meloa598bb52015-08-28 12:02:37 -030015 */
16
Arnaldo Carvalho de Meloaeb00b12019-08-22 15:40:29 -030017#include "util/record.h"
Robert Richter4e319022013-06-11 17:29:18 +020018#include <traceevent/event-parse.h>
Jiri Olsa988bdb32015-09-02 09:56:35 +020019#include <api/fs/tracing_path.h>
Arnaldo Carvalho de Melo744fafc2018-11-07 10:04:51 -030020#include <bpf/bpf.h>
Arnaldo Carvalho de Meloff7a4f92019-02-19 16:17:33 -030021#include "util/bpf_map.h"
Arnaldo Carvalho de Meloc3e78a32019-07-09 16:36:45 -030022#include "util/rlimit.h"
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -030023#include "builtin.h"
Arnaldo Carvalho de Melo9ea42ba2018-03-06 16:30:51 -030024#include "util/cgroup.h"
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -030025#include "util/color.h"
Arnaldo Carvalho de Meloac962872018-12-13 17:30:20 -030026#include "util/config.h"
Arnaldo Carvalho de Melo7c304ee02013-08-22 16:49:54 -030027#include "util/debug.h"
Arnaldo Carvalho de Melo4a3cec82019-08-30 11:11:01 -030028#include "util/dso.h"
Hendrik Brueckner092bd3c2018-01-19 09:56:16 +010029#include "util/env.h"
Arnaldo Carvalho de Melo5ab8c682017-04-25 15:30:47 -030030#include "util/event.h"
Arnaldo Carvalho de Meloca125272019-09-24 15:41:51 -030031#include "util/evsel.h"
32#include "util/evsel_fprintf.h"
Arnaldo Carvalho de Meloea49e012019-09-18 11:36:13 -030033#include "util/synthetic-events.h"
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -030034#include "util/evlist.h"
Arnaldo Carvalho de Melo22ac4312019-08-15 12:15:39 -030035#include "util/evswitch.h"
Arnaldo Carvalho de Meloe0fcfb02019-09-23 12:20:38 -030036#include "util/mmap.h"
Arnaldo Carvalho de Melo8520a982019-08-29 16:18:59 -030037#include <subcmd/pager.h>
Josh Poimboeuf4b6ab942015-12-15 09:39:39 -060038#include <subcmd/exec-cmd.h>
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -030039#include "util/machine.h"
Arnaldo Carvalho de Melo1101f692019-01-27 13:42:37 +010040#include "util/map.h"
Arnaldo Carvalho de Melodaecf9e2019-01-28 00:03:34 +010041#include "util/symbol.h"
Arnaldo Carvalho de Melo9a3993d2017-04-18 11:33:48 -030042#include "util/path.h"
David Ahern6810fc92013-08-28 22:29:52 -060043#include "util/session.h"
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -030044#include "util/thread.h"
Josh Poimboeuf4b6ab942015-12-15 09:39:39 -060045#include <subcmd/parse-options.h>
Arnaldo Carvalho de Melo2ae3a312013-08-09 12:28:31 -030046#include "util/strlist.h"
David Ahernbdc89662013-08-28 22:29:53 -060047#include "util/intlist.h"
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -030048#include "util/thread_map.h"
David Ahernbf2575c2013-10-08 21:26:53 -060049#include "util/stat.h"
Arnaldo Carvalho de Melo4a3cec82019-08-30 11:11:01 -030050#include "util/tool.h"
Arnaldo Carvalho de Melo2da39f12019-08-27 11:51:18 -030051#include "util/util.h"
Arnaldo Carvalho de Melofd5cead2017-03-14 16:19:30 -030052#include "trace/beauty/beauty.h"
Jiri Olsa97978b32013-12-03 14:09:24 +010053#include "trace-event.h"
David Ahern9aca7f12013-12-04 19:41:39 -070054#include "util/parse-events.h"
Wang Nanba504232016-02-26 09:31:54 +000055#include "util/bpf-loader.h"
Milian Wolff566a0882016-04-08 13:34:15 +020056#include "callchain.h"
Arnaldo Carvalho de Melofea01392017-04-17 16:23:22 -030057#include "print_binary.h"
Arnaldo Carvalho de Meloa0675582017-04-17 16:51:59 -030058#include "string2.h"
Arnaldo Carvalho de Melofd0db102016-04-04 13:32:20 -030059#include "syscalltbl.h"
Arnaldo Carvalho de Melo96c14452016-05-04 12:47:16 -030060#include "rb_resort.h"
Arnaldo Carvalho de Meloc1a604d2019-08-29 15:20:59 -030061#include "../perf.h"
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -030062
Arnaldo Carvalho de Meloa43783a2017-04-18 10:46:11 -030063#include <errno.h>
Arnaldo Carvalho de Melofd20e812017-04-17 15:23:08 -030064#include <inttypes.h>
Arnaldo Carvalho de Melo42087352017-04-19 19:06:30 -030065#include <poll.h>
Arnaldo Carvalho de Melo9607ad32017-04-19 15:49:18 -030066#include <signal.h>
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -030067#include <stdlib.h>
Arnaldo Carvalho de Melo017037f2017-01-09 17:26:26 -030068#include <string.h>
Jiri Olsa8dd2a132015-09-07 10:38:06 +020069#include <linux/err.h>
Arnaldo Carvalho de Melo997bba82016-03-30 19:43:32 -030070#include <linux/filter.h>
Arnaldo Carvalho de Melo877a7a12017-04-17 11:39:06 -030071#include <linux/kernel.h>
Arnaldo Carvalho de Melo39878d42016-03-30 20:02:15 -030072#include <linux/random.h>
Arnaldo Carvalho de Meloc6d4a492016-04-14 18:29:08 -030073#include <linux/stringify.h>
Arnaldo Carvalho de Melobd48c632016-08-05 15:40:30 -030074#include <linux/time64.h>
Arnaldo Carvalho de Melo7f7c5362019-07-04 11:32:27 -030075#include <linux/zalloc.h>
Arnaldo Carvalho de Melobafae982018-01-22 16:42:16 -030076#include <fcntl.h>
Arnaldo Carvalho de Melo4bcc4cf2018-12-27 13:32:59 -030077#include <sys/sysmacros.h>
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -030078
Arnaldo Carvalho de Melo3052ba52019-06-25 17:27:31 -030079#include <linux/ctype.h>
Jiri Olsa7728fa02019-10-07 14:53:17 +020080#include <perf/mmap.h>
Arnaldo Carvalho de Melo3d689ed2017-04-17 16:10:49 -030081
Arnaldo Carvalho de Meloc188e7a2015-05-14 17:39:03 -030082#ifndef O_CLOEXEC
83# define O_CLOEXEC 02000000
84#endif
85
Arnaldo Carvalho de Melo83a51692017-07-13 17:14:11 -030086#ifndef F_LINUX_SPECIFIC_BASE
87# define F_LINUX_SPECIFIC_BASE 1024
88#endif
89
Arnaldo Carvalho de Melo3f41b772019-10-09 16:06:43 -030090/*
91 * strtoul: Go from a string to a value, i.e. for msr: MSR_FS_BASE to 0xc0000100
92 */
Arnaldo Carvalho de Melo888ca8542019-10-04 14:52:30 -030093struct syscall_arg_fmt {
94 size_t (*scnprintf)(char *bf, size_t size, struct syscall_arg *arg);
Arnaldo Carvalho de Melo3f41b772019-10-09 16:06:43 -030095 bool (*strtoul)(char *bf, size_t size, struct syscall_arg *arg, u64 *val);
Arnaldo Carvalho de Melo888ca8542019-10-04 14:52:30 -030096 unsigned long (*mask_val)(struct syscall_arg *arg, unsigned long val);
97 void *parm;
98 const char *name;
Arnaldo Carvalho de Melo95979452019-10-04 14:56:40 -030099 u16 nr_entries; // for arrays
Arnaldo Carvalho de Melo888ca8542019-10-04 14:52:30 -0300100 bool show_zero;
101};
102
103struct syscall_fmt {
104 const char *name;
105 const char *alias;
106 struct {
107 const char *sys_enter,
108 *sys_exit;
109 } bpf_prog_name;
110 struct syscall_arg_fmt arg[6];
111 u8 nr_args;
112 bool errpid;
113 bool timeout;
114 bool hexret;
115};
116
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300117struct trace {
118 struct perf_tool tool;
Arnaldo Carvalho de Melofd0db102016-04-04 13:32:20 -0300119 struct syscalltbl *sctbl;
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300120 struct {
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300121 struct syscall *table;
Arnaldo Carvalho de Melob27b38e2018-12-12 13:39:24 -0300122 struct bpf_map *map;
Arnaldo Carvalho de Melo3803a222019-07-16 11:27:03 -0300123 struct { // per syscall BPF_MAP_TYPE_PROG_ARRAY
124 struct bpf_map *sys_enter,
125 *sys_exit;
126 } prog_array;
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300127 struct {
Jiri Olsa32dcd022019-07-21 13:23:51 +0200128 struct evsel *sys_enter,
Arnaldo Carvalho de Melod3d1c4bdf52018-08-07 16:21:44 -0300129 *sys_exit,
130 *augmented;
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300131 } events;
Arnaldo Carvalho de Melo5834da72019-07-15 17:51:43 -0300132 struct bpf_program *unaugmented_prog;
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300133 } syscalls;
Arnaldo Carvalho de Meloff7a4f92019-02-19 16:17:33 -0300134 struct {
135 struct bpf_map *map;
136 } dump;
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300137 struct record_opts opts;
Jiri Olsa63503db2019-07-21 13:23:52 +0200138 struct evlist *evlist;
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300139 struct machine *host;
140 struct thread *current;
Arnaldo Carvalho de Meloc8c80572019-07-15 16:58:23 -0300141 struct bpf_object *bpf_obj;
Arnaldo Carvalho de Melo9ea42ba2018-03-06 16:30:51 -0300142 struct cgroup *cgroup;
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300143 u64 base_time;
144 FILE *output;
145 unsigned long nr_events;
Arnaldo Carvalho de Melo5067a8c2018-10-18 16:38:27 -0300146 unsigned long nr_events_printed;
147 unsigned long max_events;
Arnaldo Carvalho de Melo22ac4312019-08-15 12:15:39 -0300148 struct evswitch evswitch;
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300149 struct strlist *ev_qualifier;
150 struct {
151 size_t nr;
152 int *entries;
153 } ev_qualifier_ids;
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300154 struct {
155 size_t nr;
156 pid_t *entries;
Arnaldo Carvalho de Melo744fafc2018-11-07 10:04:51 -0300157 struct bpf_map *map;
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300158 } filter_pids;
159 double duration_filter;
160 double runtime_ms;
161 struct {
162 u64 vfs_getname,
163 proc_getname;
164 } stats;
Arnaldo Carvalho de Meloc6d4a492016-04-14 18:29:08 -0300165 unsigned int max_stack;
Arnaldo Carvalho de Melo5cf9c842016-04-15 11:10:31 -0300166 unsigned int min_stack;
Arnaldo Carvalho de Melob9b6a2e2018-12-19 18:54:36 -0300167 int raw_augmented_syscalls_args_size;
Arnaldo Carvalho de Melocd26ea62018-11-03 08:19:56 -0300168 bool raw_augmented_syscalls;
Arnaldo Carvalho de Melo79d725c2019-07-16 16:56:49 -0300169 bool fd_path_disabled;
Arnaldo Carvalho de Melob9b6a2e2018-12-19 18:54:36 -0300170 bool sort_events;
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300171 bool not_ev_qualifier;
172 bool live;
173 bool full_time;
174 bool sched;
175 bool multiple_threads;
176 bool summary;
177 bool summary_only;
Arnaldo Carvalho de Melob88b14d2019-10-14 15:32:40 -0300178 bool errno_summary;
Arnaldo Carvalho de Melo0a6545b2018-03-29 12:22:59 -0300179 bool failure_only;
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300180 bool show_comm;
Arnaldo Carvalho de Melo591421e2018-01-22 11:38:54 -0300181 bool print_sample;
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300182 bool show_tool_stats;
183 bool trace_syscalls;
Arnaldo Carvalho de Melof11b2802019-10-04 15:28:13 -0300184 bool libtraceevent_print;
Arnaldo Carvalho de Melo44621812016-04-11 15:49:11 -0300185 bool kernel_syscallchains;
Arnaldo Carvalho de Melo9ed45d52018-12-14 13:40:49 -0300186 s16 args_alignment;
Arnaldo Carvalho de Melob0361462018-12-14 11:17:19 -0300187 bool show_tstamp;
Arnaldo Carvalho de Melo42e4a522018-12-14 10:22:18 -0300188 bool show_duration;
Arnaldo Carvalho de Meloe7c634f2018-12-14 10:12:09 -0300189 bool show_zeros;
Arnaldo Carvalho de Melo9d6dc172018-12-14 11:32:02 -0300190 bool show_arg_names;
Arnaldo Carvalho de Meloc65c83f2018-12-14 17:06:47 -0300191 bool show_string_prefix;
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300192 bool force;
193 bool vfs_getname;
194 int trace_pgfaults;
Arnaldo Carvalho de Melo7e035922019-10-01 15:44:44 -0300195 char *perfconfig_events;
Jiri Olsa028713a2018-12-05 17:05:09 +0100196 struct {
197 struct ordered_events data;
198 u64 last;
199 } oe;
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300200};
Arnaldo Carvalho de Meloa1c25522015-06-11 22:47:54 -0300201
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300202struct tp_field {
203 int offset;
204 union {
205 u64 (*integer)(struct tp_field *field, struct perf_sample *sample);
206 void *(*pointer)(struct tp_field *field, struct perf_sample *sample);
207 };
208};
209
210#define TP_UINT_FIELD(bits) \
211static u64 tp_field__u##bits(struct tp_field *field, struct perf_sample *sample) \
212{ \
David Ahern55d43bca2015-02-19 15:00:22 -0500213 u##bits value; \
214 memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \
215 return value; \
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300216}
217
218TP_UINT_FIELD(8);
219TP_UINT_FIELD(16);
220TP_UINT_FIELD(32);
221TP_UINT_FIELD(64);
222
223#define TP_UINT_FIELD__SWAPPED(bits) \
224static u64 tp_field__swapped_u##bits(struct tp_field *field, struct perf_sample *sample) \
225{ \
David Ahern55d43bca2015-02-19 15:00:22 -0500226 u##bits value; \
227 memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300228 return bswap_##bits(value);\
229}
230
231TP_UINT_FIELD__SWAPPED(16);
232TP_UINT_FIELD__SWAPPED(32);
233TP_UINT_FIELD__SWAPPED(64);
234
Arnaldo Carvalho de Meloaa823f52018-08-02 15:03:02 -0300235static int __tp_field__init_uint(struct tp_field *field, int size, int offset, bool needs_swap)
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300236{
Arnaldo Carvalho de Meloaa823f52018-08-02 15:03:02 -0300237 field->offset = offset;
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300238
Arnaldo Carvalho de Meloaa823f52018-08-02 15:03:02 -0300239 switch (size) {
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300240 case 1:
241 field->integer = tp_field__u8;
242 break;
243 case 2:
244 field->integer = needs_swap ? tp_field__swapped_u16 : tp_field__u16;
245 break;
246 case 4:
247 field->integer = needs_swap ? tp_field__swapped_u32 : tp_field__u32;
248 break;
249 case 8:
250 field->integer = needs_swap ? tp_field__swapped_u64 : tp_field__u64;
251 break;
252 default:
253 return -1;
254 }
255
256 return 0;
257}
258
Tzvetomir Stoyanov (VMware)2c92f982018-09-19 14:56:45 -0400259static int tp_field__init_uint(struct tp_field *field, struct tep_format_field *format_field, bool needs_swap)
Arnaldo Carvalho de Meloaa823f52018-08-02 15:03:02 -0300260{
261 return __tp_field__init_uint(field, format_field->size, format_field->offset, needs_swap);
262}
263
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300264static void *tp_field__ptr(struct tp_field *field, struct perf_sample *sample)
265{
266 return sample->raw_data + field->offset;
267}
268
Arnaldo Carvalho de Meloaa823f52018-08-02 15:03:02 -0300269static int __tp_field__init_ptr(struct tp_field *field, int offset)
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300270{
Arnaldo Carvalho de Meloaa823f52018-08-02 15:03:02 -0300271 field->offset = offset;
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300272 field->pointer = tp_field__ptr;
273 return 0;
274}
275
Tzvetomir Stoyanov (VMware)2c92f982018-09-19 14:56:45 -0400276static int tp_field__init_ptr(struct tp_field *field, struct tep_format_field *format_field)
Arnaldo Carvalho de Meloaa823f52018-08-02 15:03:02 -0300277{
278 return __tp_field__init_ptr(field, format_field->offset);
279}
280
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300281struct syscall_tp {
282 struct tp_field id;
283 union {
284 struct tp_field args, ret;
285 };
286};
287
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -0300288/*
Arnaldo Carvalho de Melo2b00bb62019-10-17 16:37:18 -0300289 * The evsel->priv as used by 'perf trace'
290 * sc: for raw_syscalls:sys_{enter,exit} and syscalls:sys_{enter,exit}_SYSCALLNAME
291 * fmt: for all the other tracepoints
292 */
293struct evsel_trace {
294 struct syscall_tp sc;
295 struct syscall_arg_fmt *fmt;
296};
297
298static struct evsel_trace *evsel_trace__new(void)
299{
300 return zalloc(sizeof(struct evsel_trace));
301}
302
303static void evsel_trace__delete(struct evsel_trace *et)
304{
305 if (et == NULL)
306 return;
307
308 zfree(&et->fmt);
309 free(et);
310}
311
312/*
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -0300313 * Used with raw_syscalls:sys_{enter,exit} and with the
314 * syscalls:sys_{enter,exit}_SYSCALL tracepoints
315 */
316static inline struct syscall_tp *__evsel__syscall_tp(struct evsel *evsel)
317{
Arnaldo Carvalho de Melo2b00bb62019-10-17 16:37:18 -0300318 struct evsel_trace *et = evsel->priv;
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -0300319
Arnaldo Carvalho de Melo2b00bb62019-10-17 16:37:18 -0300320 return &et->sc;
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -0300321}
322
Arnaldo Carvalho de Melo8b913df2019-10-17 10:39:46 -0300323static struct syscall_tp *evsel__syscall_tp(struct evsel *evsel)
324{
325 if (evsel->priv == NULL) {
Arnaldo Carvalho de Melo2b00bb62019-10-17 16:37:18 -0300326 evsel->priv = evsel_trace__new();
327 if (evsel->priv == NULL)
328 return NULL;
Arnaldo Carvalho de Melo8b913df2019-10-17 10:39:46 -0300329 }
330
331 return __evsel__syscall_tp(evsel);
332}
333
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -0300334/*
335 * Used with all the other tracepoints.
336 */
337static inline struct syscall_arg_fmt *__evsel__syscall_arg_fmt(struct evsel *evsel)
338{
Arnaldo Carvalho de Melo2b00bb62019-10-17 16:37:18 -0300339 struct evsel_trace *et = evsel->priv;
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -0300340
Arnaldo Carvalho de Melo2b00bb62019-10-17 16:37:18 -0300341 return et->fmt;
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -0300342}
343
Arnaldo Carvalho de Melo8b913df2019-10-17 10:39:46 -0300344static struct syscall_arg_fmt *evsel__syscall_arg_fmt(struct evsel *evsel)
345{
Arnaldo Carvalho de Melo2b00bb62019-10-17 16:37:18 -0300346 struct evsel_trace *et = evsel->priv;
347
Arnaldo Carvalho de Melo8b913df2019-10-17 10:39:46 -0300348 if (evsel->priv == NULL) {
Arnaldo Carvalho de Melo2b00bb62019-10-17 16:37:18 -0300349 et = evsel->priv = evsel_trace__new();
350
351 if (et == NULL)
352 return NULL;
353 }
354
355 if (et->fmt == NULL) {
356 et->fmt = calloc(evsel->tp_format->format.nr_fields, sizeof(struct syscall_arg_fmt));
357 if (et->fmt == NULL)
358 goto out_delete;
Arnaldo Carvalho de Melo8b913df2019-10-17 10:39:46 -0300359 }
360
361 return __evsel__syscall_arg_fmt(evsel);
Arnaldo Carvalho de Melo2b00bb62019-10-17 16:37:18 -0300362
363out_delete:
364 evsel_trace__delete(evsel->priv);
365 evsel->priv = NULL;
366 return NULL;
Arnaldo Carvalho de Melo8b913df2019-10-17 10:39:46 -0300367}
368
Jiri Olsa32dcd022019-07-21 13:23:51 +0200369static int perf_evsel__init_tp_uint_field(struct evsel *evsel,
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300370 struct tp_field *field,
371 const char *name)
372{
Tzvetomir Stoyanov (VMware)2c92f982018-09-19 14:56:45 -0400373 struct tep_format_field *format_field = perf_evsel__field(evsel, name);
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300374
375 if (format_field == NULL)
376 return -1;
377
378 return tp_field__init_uint(field, format_field, evsel->needs_swap);
379}
380
381#define perf_evsel__init_sc_tp_uint_field(evsel, name) \
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -0300382 ({ struct syscall_tp *sc = __evsel__syscall_tp(evsel);\
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300383 perf_evsel__init_tp_uint_field(evsel, &sc->name, #name); })
384
Jiri Olsa32dcd022019-07-21 13:23:51 +0200385static int perf_evsel__init_tp_ptr_field(struct evsel *evsel,
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300386 struct tp_field *field,
387 const char *name)
388{
Tzvetomir Stoyanov (VMware)2c92f982018-09-19 14:56:45 -0400389 struct tep_format_field *format_field = perf_evsel__field(evsel, name);
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300390
391 if (format_field == NULL)
392 return -1;
393
394 return tp_field__init_ptr(field, format_field);
395}
396
397#define perf_evsel__init_sc_tp_ptr_field(evsel, name) \
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -0300398 ({ struct syscall_tp *sc = __evsel__syscall_tp(evsel);\
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300399 perf_evsel__init_tp_ptr_field(evsel, &sc->name, #name); })
400
Jiri Olsa5eb2dd22019-07-21 13:23:57 +0200401static void evsel__delete_priv(struct evsel *evsel)
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300402{
Arnaldo Carvalho de Melo04662522013-12-26 17:41:15 -0300403 zfree(&evsel->priv);
Jiri Olsa5eb2dd22019-07-21 13:23:57 +0200404 evsel__delete(evsel);
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300405}
406
Jiri Olsa32dcd022019-07-21 13:23:51 +0200407static int perf_evsel__init_syscall_tp(struct evsel *evsel)
Arnaldo Carvalho de Melod32855f2018-08-02 15:09:24 -0300408{
Arnaldo Carvalho de Melo8b913df2019-10-17 10:39:46 -0300409 struct syscall_tp *sc = evsel__syscall_tp(evsel);
Arnaldo Carvalho de Melod32855f2018-08-02 15:09:24 -0300410
Arnaldo Carvalho de Melo8b913df2019-10-17 10:39:46 -0300411 if (sc != NULL) {
Arnaldo Carvalho de Melo42da4382018-12-05 13:08:11 -0300412 if (perf_evsel__init_tp_uint_field(evsel, &sc->id, "__syscall_nr") &&
413 perf_evsel__init_tp_uint_field(evsel, &sc->id, "nr"))
Arnaldo Carvalho de Melo8b913df2019-10-17 10:39:46 -0300414 return -ENOENT;
Arnaldo Carvalho de Melod32855f2018-08-02 15:09:24 -0300415 return 0;
416 }
417
418 return -ENOMEM;
Arnaldo Carvalho de Melod32855f2018-08-02 15:09:24 -0300419}
420
Jiri Olsa32dcd022019-07-21 13:23:51 +0200421static int perf_evsel__init_augmented_syscall_tp(struct evsel *evsel, struct evsel *tp)
Arnaldo Carvalho de Melod3d1c4bdf52018-08-07 16:21:44 -0300422{
Arnaldo Carvalho de Melo8b913df2019-10-17 10:39:46 -0300423 struct syscall_tp *sc = evsel__syscall_tp(evsel);
Arnaldo Carvalho de Melod3d1c4bdf52018-08-07 16:21:44 -0300424
Arnaldo Carvalho de Melo8b913df2019-10-17 10:39:46 -0300425 if (sc != NULL) {
Arnaldo Carvalho de Melob9b6a2e2018-12-19 18:54:36 -0300426 struct tep_format_field *syscall_id = perf_evsel__field(tp, "id");
427 if (syscall_id == NULL)
428 syscall_id = perf_evsel__field(tp, "__syscall_nr");
Arnaldo Carvalho de Melo8b913df2019-10-17 10:39:46 -0300429 if (syscall_id == NULL ||
430 __tp_field__init_uint(&sc->id, syscall_id->size, syscall_id->offset, evsel->needs_swap))
431 return -EINVAL;
Arnaldo Carvalho de Melod3d1c4bdf52018-08-07 16:21:44 -0300432
433 return 0;
434 }
435
436 return -ENOMEM;
Arnaldo Carvalho de Melod3d1c4bdf52018-08-07 16:21:44 -0300437}
438
Jiri Olsa32dcd022019-07-21 13:23:51 +0200439static int perf_evsel__init_augmented_syscall_tp_args(struct evsel *evsel)
Arnaldo Carvalho de Melod3d1c4bdf52018-08-07 16:21:44 -0300440{
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -0300441 struct syscall_tp *sc = __evsel__syscall_tp(evsel);
Arnaldo Carvalho de Melod3d1c4bdf52018-08-07 16:21:44 -0300442
443 return __tp_field__init_ptr(&sc->args, sc->id.offset + sizeof(u64));
444}
445
Jiri Olsa32dcd022019-07-21 13:23:51 +0200446static int perf_evsel__init_augmented_syscall_tp_ret(struct evsel *evsel)
Arnaldo Carvalho de Melob1a9e252018-09-03 16:29:39 -0300447{
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -0300448 struct syscall_tp *sc = __evsel__syscall_tp(evsel);
Arnaldo Carvalho de Melob1a9e252018-09-03 16:29:39 -0300449
450 return __tp_field__init_uint(&sc->ret, sizeof(u64), sc->id.offset + sizeof(u64), evsel->needs_swap);
451}
452
Jiri Olsa32dcd022019-07-21 13:23:51 +0200453static int perf_evsel__init_raw_syscall_tp(struct evsel *evsel, void *handler)
Namhyung Kim96695d42013-11-12 08:51:45 -0300454{
Arnaldo Carvalho de Melo8b913df2019-10-17 10:39:46 -0300455 if (evsel__syscall_tp(evsel) != NULL) {
Namhyung Kim96695d42013-11-12 08:51:45 -0300456 if (perf_evsel__init_sc_tp_uint_field(evsel, id))
Arnaldo Carvalho de Melo8b913df2019-10-17 10:39:46 -0300457 return -ENOENT;
Namhyung Kim96695d42013-11-12 08:51:45 -0300458
459 evsel->handler = handler;
460 return 0;
461 }
462
463 return -ENOMEM;
Namhyung Kim96695d42013-11-12 08:51:45 -0300464}
465
Jiri Olsa32dcd022019-07-21 13:23:51 +0200466static struct evsel *perf_evsel__raw_syscall_newtp(const char *direction, void *handler)
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300467{
Jiri Olsa32dcd022019-07-21 13:23:51 +0200468 struct evsel *evsel = perf_evsel__newtp("raw_syscalls", direction);
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300469
David Ahern9aca7f12013-12-04 19:41:39 -0700470 /* older kernel (e.g., RHEL6) use syscalls:{enter,exit} */
Jiri Olsa8dd2a132015-09-07 10:38:06 +0200471 if (IS_ERR(evsel))
David Ahern9aca7f12013-12-04 19:41:39 -0700472 evsel = perf_evsel__newtp("syscalls", direction);
473
Jiri Olsa8dd2a132015-09-07 10:38:06 +0200474 if (IS_ERR(evsel))
475 return NULL;
476
Arnaldo Carvalho de Melo63f11c82018-08-02 14:27:09 -0300477 if (perf_evsel__init_raw_syscall_tp(evsel, handler))
Jiri Olsa8dd2a132015-09-07 10:38:06 +0200478 goto out_delete;
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300479
480 return evsel;
481
482out_delete:
Jiri Olsa5eb2dd22019-07-21 13:23:57 +0200483 evsel__delete_priv(evsel);
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300484 return NULL;
485}
486
487#define perf_evsel__sc_tp_uint(evsel, name, sample) \
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -0300488 ({ struct syscall_tp *fields = __evsel__syscall_tp(evsel); \
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300489 fields->name.integer(&fields->name, sample); })
490
491#define perf_evsel__sc_tp_ptr(evsel, name, sample) \
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -0300492 ({ struct syscall_tp *fields = __evsel__syscall_tp(evsel); \
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -0300493 fields->name.pointer(&fields->name, sample); })
494
Arnaldo Carvalho de Melo97c2a782019-10-15 16:01:42 -0300495size_t strarray__scnprintf_suffix(struct strarray *sa, char *bf, size_t size, const char *intfmt, bool show_suffix, int val)
496{
497 int idx = val - sa->offset;
498
499 if (idx < 0 || idx >= sa->nr_entries || sa->entries[idx] == NULL) {
500 size_t printed = scnprintf(bf, size, intfmt, val);
501 if (show_suffix)
502 printed += scnprintf(bf + printed, size - printed, " /* %s??? */", sa->prefix);
503 return printed;
504 }
505
506 return scnprintf(bf, size, "%s%s", sa->entries[idx], show_suffix ? sa->prefix : "");
507}
508
Arnaldo Carvalho de Meloc65c83f2018-12-14 17:06:47 -0300509size_t strarray__scnprintf(struct strarray *sa, char *bf, size_t size, const char *intfmt, bool show_prefix, int val)
Arnaldo Carvalho de Melo0ae79632017-07-17 10:31:42 -0300510{
511 int idx = val - sa->offset;
Arnaldo Carvalho de Melo1f115cb2013-09-03 15:50:28 -0300512
Arnaldo Carvalho de Melo9614b8d2018-12-18 10:54:19 -0300513 if (idx < 0 || idx >= sa->nr_entries || sa->entries[idx] == NULL) {
514 size_t printed = scnprintf(bf, size, intfmt, val);
515 if (show_prefix)
516 printed += scnprintf(bf + printed, size - printed, " /* %s??? */", sa->prefix);
517 return printed;
518 }
Arnaldo Carvalho de Melo1f115cb2013-09-03 15:50:28 -0300519
Arnaldo Carvalho de Meloc65c83f2018-12-14 17:06:47 -0300520 return scnprintf(bf, size, "%s%s", show_prefix ? sa->prefix : "", sa->entries[idx]);
Arnaldo Carvalho de Melo03e3adc2013-10-08 16:00:21 -0300521}
522
Arnaldo Carvalho de Melo975b7c22013-10-08 17:17:43 -0300523static size_t __syscall_arg__scnprintf_strarray(char *bf, size_t size,
524 const char *intfmt,
525 struct syscall_arg *arg)
Arnaldo Carvalho de Melo1f115cb2013-09-03 15:50:28 -0300526{
Arnaldo Carvalho de Meloc65c83f2018-12-14 17:06:47 -0300527 return strarray__scnprintf(arg->parm, bf, size, intfmt, arg->show_string_prefix, arg->val);
Arnaldo Carvalho de Melo1f115cb2013-09-03 15:50:28 -0300528}
529
Arnaldo Carvalho de Melo975b7c22013-10-08 17:17:43 -0300530static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size,
531 struct syscall_arg *arg)
532{
533 return __syscall_arg__scnprintf_strarray(bf, size, "%d", arg);
534}
535
Arnaldo Carvalho de Melo1f115cb2013-09-03 15:50:28 -0300536#define SCA_STRARRAY syscall_arg__scnprintf_strarray
537
Arnaldo Carvalho de Melod066da92019-10-17 18:33:00 -0300538bool syscall_arg__strtoul_strarray(char *bf, size_t size, struct syscall_arg *arg, u64 *ret)
539{
540 return strarray__strtoul(arg->parm, bf, size, ret);
541}
542
Arnaldo Carvalho de Meloe0712ba2019-10-19 15:26:50 -0300543bool syscall_arg__strtoul_strarray_flags(char *bf, size_t size, struct syscall_arg *arg, u64 *ret)
544{
545 return strarray__strtoul_flags(arg->parm, bf, size, ret);
546}
547
Arnaldo Carvalho de Melo1a8a90b2019-10-18 15:41:07 -0300548bool syscall_arg__strtoul_strarrays(char *bf, size_t size, struct syscall_arg *arg, u64 *ret)
549{
550 return strarrays__strtoul(arg->parm, bf, size, ret);
551}
552
Arnaldo Carvalho de Melof5b91db2019-05-23 18:05:03 -0300553size_t syscall_arg__scnprintf_strarray_flags(char *bf, size_t size, struct syscall_arg *arg)
554{
555 return strarray__scnprintf_flags(arg->parm, bf, size, arg->show_string_prefix, arg->val);
556}
557
Arnaldo Carvalho de Melo1f2d0852018-12-18 10:25:28 -0300558size_t strarrays__scnprintf(struct strarrays *sas, char *bf, size_t size, const char *intfmt, bool show_prefix, int val)
559{
Arnaldo Carvalho de Melo9614b8d2018-12-18 10:54:19 -0300560 size_t printed;
Arnaldo Carvalho de Melo1f2d0852018-12-18 10:25:28 -0300561 int i;
Arnaldo Carvalho de Melo83a51692017-07-13 17:14:11 -0300562
Arnaldo Carvalho de Melo1f2d0852018-12-18 10:25:28 -0300563 for (i = 0; i < sas->nr_entries; ++i) {
564 struct strarray *sa = sas->entries[i];
565 int idx = val - sa->offset;
566
567 if (idx >= 0 && idx < sa->nr_entries) {
568 if (sa->entries[idx] == NULL)
569 break;
570 return scnprintf(bf, size, "%s%s", show_prefix ? sa->prefix : "", sa->entries[idx]);
571 }
572 }
573
Arnaldo Carvalho de Melo9614b8d2018-12-18 10:54:19 -0300574 printed = scnprintf(bf, size, intfmt, val);
575 if (show_prefix)
576 printed += scnprintf(bf + printed, size - printed, " /* %s??? */", sas->entries[0]->prefix);
577 return printed;
Arnaldo Carvalho de Melo83a51692017-07-13 17:14:11 -0300578}
579
Arnaldo Carvalho de Melod0a3a102019-10-09 16:11:36 -0300580bool strarray__strtoul(struct strarray *sa, char *bf, size_t size, u64 *ret)
581{
582 int i;
583
584 for (i = 0; i < sa->nr_entries; ++i) {
585 if (sa->entries[i] && strncmp(sa->entries[i], bf, size) == 0 && sa->entries[i][size] == '\0') {
586 *ret = sa->offset + i;
587 return true;
588 }
589 }
590
591 return false;
592}
593
Arnaldo Carvalho de Melo154c9782019-10-19 15:17:30 -0300594bool strarray__strtoul_flags(struct strarray *sa, char *bf, size_t size, u64 *ret)
595{
596 u64 val = 0;
597 char *tok = bf, *sep, *end;
598
599 *ret = 0;
600
601 while (size != 0) {
602 int toklen = size;
603
604 sep = memchr(tok, '|', size);
605 if (sep != NULL) {
606 size -= sep - tok + 1;
607
608 end = sep - 1;
609 while (end > tok && isspace(*end))
610 --end;
611
612 toklen = end - tok + 1;
613 }
614
615 while (isspace(*tok))
616 ++tok;
617
618 if (isalpha(*tok) || *tok == '_') {
619 if (!strarray__strtoul(sa, tok, toklen, &val))
620 return false;
621 } else {
622 bool is_hexa = tok[0] == 0 && (tok[1] = 'x' || tok[1] == 'X');
623
624 val = strtoul(tok, NULL, is_hexa ? 16 : 0);
625 }
626
627 *ret |= (1 << (val - 1));
628
629 if (sep == NULL)
630 break;
631 tok = sep + 1;
632 }
633
634 return true;
635}
636
Arnaldo Carvalho de Melod0a3a102019-10-09 16:11:36 -0300637bool strarrays__strtoul(struct strarrays *sas, char *bf, size_t size, u64 *ret)
638{
639 int i;
640
641 for (i = 0; i < sas->nr_entries; ++i) {
642 struct strarray *sa = sas->entries[i];
643
644 if (strarray__strtoul(sa, bf, size, ret))
645 return true;
646 }
647
648 return false;
649}
650
Arnaldo Carvalho de Melo274e86f2017-07-14 09:38:38 -0300651size_t syscall_arg__scnprintf_strarrays(char *bf, size_t size,
652 struct syscall_arg *arg)
Arnaldo Carvalho de Melo83a51692017-07-13 17:14:11 -0300653{
Arnaldo Carvalho de Melo1f2d0852018-12-18 10:25:28 -0300654 return strarrays__scnprintf(arg->parm, bf, size, "%d", arg->show_string_prefix, arg->val);
Arnaldo Carvalho de Melo83a51692017-07-13 17:14:11 -0300655}
656
Arnaldo Carvalho de Melo48e1f912016-07-05 14:43:27 -0300657#ifndef AT_FDCWD
658#define AT_FDCWD -100
659#endif
660
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -0300661static size_t syscall_arg__scnprintf_fd_at(char *bf, size_t size,
662 struct syscall_arg *arg)
663{
664 int fd = arg->val;
Arnaldo Carvalho de Meloc65c83f2018-12-14 17:06:47 -0300665 const char *prefix = "AT_FD";
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -0300666
667 if (fd == AT_FDCWD)
Arnaldo Carvalho de Meloc65c83f2018-12-14 17:06:47 -0300668 return scnprintf(bf, size, "%s%s", arg->show_string_prefix ? prefix : "", "CWD");
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -0300669
670 return syscall_arg__scnprintf_fd(bf, size, arg);
671}
672
673#define SCA_FDAT syscall_arg__scnprintf_fd_at
674
675static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size,
676 struct syscall_arg *arg);
677
678#define SCA_CLOSE_FD syscall_arg__scnprintf_close_fd
679
Arnaldo Carvalho de Melo2c2b1622017-07-14 10:19:18 -0300680size_t syscall_arg__scnprintf_hex(char *bf, size_t size, struct syscall_arg *arg)
Arnaldo Carvalho de Melo13d4ff32013-08-23 18:14:48 -0300681{
Arnaldo Carvalho de Melo01533e92013-09-03 12:20:12 -0300682 return scnprintf(bf, size, "%#lx", arg->val);
Arnaldo Carvalho de Melo13d4ff32013-08-23 18:14:48 -0300683}
684
Arnaldo Carvalho de Meloce055392018-12-17 12:21:09 -0300685size_t syscall_arg__scnprintf_ptr(char *bf, size_t size, struct syscall_arg *arg)
686{
687 if (arg->val == 0)
688 return scnprintf(bf, size, "NULL");
689 return syscall_arg__scnprintf_hex(bf, size, arg);
690}
691
Arnaldo Carvalho de Melo2c2b1622017-07-14 10:19:18 -0300692size_t syscall_arg__scnprintf_int(char *bf, size_t size, struct syscall_arg *arg)
Arnaldo Carvalho de Meloa1c25522015-06-11 22:47:54 -0300693{
694 return scnprintf(bf, size, "%d", arg->val);
695}
696
Arnaldo Carvalho de Melo5dde91e2017-07-14 10:34:16 -0300697size_t syscall_arg__scnprintf_long(char *bf, size_t size, struct syscall_arg *arg)
698{
699 return scnprintf(bf, size, "%ld", arg->val);
700}
701
Arnaldo Carvalho de Melo95979452019-10-04 14:56:40 -0300702static size_t syscall_arg__scnprintf_char_array(char *bf, size_t size, struct syscall_arg *arg)
703{
704 // XXX Hey, maybe for sched:sched_switch prev/next comm fields we can
705 // fill missing comms using thread__set_comm()...
706 // here or in a special syscall_arg__scnprintf_pid_sched_tp...
Arnaldo Carvalho de Meloc5e006c2019-10-15 08:26:47 -0300707 return scnprintf(bf, size, "\"%-.*s\"", arg->fmt->nr_entries ?: arg->len, arg->val);
Arnaldo Carvalho de Melo95979452019-10-04 14:56:40 -0300708}
709
710#define SCA_CHAR_ARRAY syscall_arg__scnprintf_char_array
711
Arnaldo Carvalho de Melo729a7842015-10-29 11:48:18 -0300712static const char *bpf_cmd[] = {
713 "MAP_CREATE", "MAP_LOOKUP_ELEM", "MAP_UPDATE_ELEM", "MAP_DELETE_ELEM",
714 "MAP_GET_NEXT_KEY", "PROG_LOAD",
715};
Arnaldo Carvalho de Melo2e3d7fac2018-12-14 15:08:40 -0300716static DEFINE_STRARRAY(bpf_cmd, "BPF_");
Arnaldo Carvalho de Melo729a7842015-10-29 11:48:18 -0300717
Arnaldo Carvalho de Melof6af0952019-05-21 16:34:03 -0300718static const char *fsmount_flags[] = {
719 [1] = "CLOEXEC",
720};
721static DEFINE_STRARRAY(fsmount_flags, "FSMOUNT_");
722
Arnaldo Carvalho de Melodcc6fd62019-05-21 15:36:44 -0300723#include "trace/beauty/generated/fsconfig_arrays.c"
724
725static DEFINE_STRARRAY(fsconfig_cmds, "FSCONFIG_");
726
Arnaldo Carvalho de Melo03e3adc2013-10-08 16:00:21 -0300727static const char *epoll_ctl_ops[] = { "ADD", "DEL", "MOD", };
Arnaldo Carvalho de Melo2e3d7fac2018-12-14 15:08:40 -0300728static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, "EPOLL_CTL_", 1);
Arnaldo Carvalho de Meloeac032c2013-09-20 11:27:32 -0300729
Arnaldo Carvalho de Melo1f115cb2013-09-03 15:50:28 -0300730static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", };
Arnaldo Carvalho de Melo2e3d7fac2018-12-14 15:08:40 -0300731static DEFINE_STRARRAY(itimers, "ITIMER_");
Arnaldo Carvalho de Melo1f115cb2013-09-03 15:50:28 -0300732
Arnaldo Carvalho de Melob62bee12015-08-11 11:05:36 -0300733static const char *keyctl_options[] = {
734 "GET_KEYRING_ID", "JOIN_SESSION_KEYRING", "UPDATE", "REVOKE", "CHOWN",
735 "SETPERM", "DESCRIBE", "CLEAR", "LINK", "UNLINK", "SEARCH", "READ",
736 "INSTANTIATE", "NEGATE", "SET_REQKEY_KEYRING", "SET_TIMEOUT",
737 "ASSUME_AUTHORITY", "GET_SECURITY", "SESSION_TO_PARENT", "REJECT",
738 "INSTANTIATE_IOV", "INVALIDATE", "GET_PERSISTENT",
739};
Arnaldo Carvalho de Melo2e3d7fac2018-12-14 15:08:40 -0300740static DEFINE_STRARRAY(keyctl_options, "KEYCTL_");
Arnaldo Carvalho de Melob62bee12015-08-11 11:05:36 -0300741
Arnaldo Carvalho de Meloefe6b882013-09-03 16:15:12 -0300742static const char *whences[] = { "SET", "CUR", "END",
743#ifdef SEEK_DATA
744"DATA",
745#endif
746#ifdef SEEK_HOLE
747"HOLE",
748#endif
749};
Arnaldo Carvalho de Melo2e3d7fac2018-12-14 15:08:40 -0300750static DEFINE_STRARRAY(whences, "SEEK_");
Arnaldo Carvalho de Melof9da0b02013-09-02 13:46:44 -0300751
Arnaldo Carvalho de Melo80f587d2013-09-03 16:28:58 -0300752static const char *fcntl_cmds[] = {
753 "DUPFD", "GETFD", "SETFD", "GETFL", "SETFL", "GETLK", "SETLK",
Arnaldo Carvalho de Meloe000e5e2017-07-13 13:07:00 -0300754 "SETLKW", "SETOWN", "GETOWN", "SETSIG", "GETSIG", "GETLK64",
755 "SETLK64", "SETLKW64", "SETOWN_EX", "GETOWN_EX",
756 "GETOWNER_UIDS",
Arnaldo Carvalho de Melo80f587d2013-09-03 16:28:58 -0300757};
Arnaldo Carvalho de Melo2e3d7fac2018-12-14 15:08:40 -0300758static DEFINE_STRARRAY(fcntl_cmds, "F_");
Arnaldo Carvalho de Melo80f587d2013-09-03 16:28:58 -0300759
Arnaldo Carvalho de Melo83a51692017-07-13 17:14:11 -0300760static const char *fcntl_linux_specific_cmds[] = {
761 "SETLEASE", "GETLEASE", "NOTIFY", [5] = "CANCELLK", "DUPFD_CLOEXEC",
762 "SETPIPE_SZ", "GETPIPE_SZ", "ADD_SEALS", "GET_SEALS",
Arnaldo Carvalho de Melo64e45612017-07-13 17:34:46 -0300763 "GET_RW_HINT", "SET_RW_HINT", "GET_FILE_RW_HINT", "SET_FILE_RW_HINT",
Arnaldo Carvalho de Melo83a51692017-07-13 17:14:11 -0300764};
765
Arnaldo Carvalho de Melo2e3d7fac2018-12-14 15:08:40 -0300766static DEFINE_STRARRAY_OFFSET(fcntl_linux_specific_cmds, "F_", F_LINUX_SPECIFIC_BASE);
Arnaldo Carvalho de Melo83a51692017-07-13 17:14:11 -0300767
768static struct strarray *fcntl_cmds_arrays[] = {
769 &strarray__fcntl_cmds,
770 &strarray__fcntl_linux_specific_cmds,
771};
772
773static DEFINE_STRARRAYS(fcntl_cmds_arrays);
774
Arnaldo Carvalho de Meloc045bf02013-09-04 11:52:33 -0300775static const char *rlimit_resources[] = {
776 "CPU", "FSIZE", "DATA", "STACK", "CORE", "RSS", "NPROC", "NOFILE",
777 "MEMLOCK", "AS", "LOCKS", "SIGPENDING", "MSGQUEUE", "NICE", "RTPRIO",
778 "RTTIME",
779};
Arnaldo Carvalho de Melo2e3d7fac2018-12-14 15:08:40 -0300780static DEFINE_STRARRAY(rlimit_resources, "RLIMIT_");
Arnaldo Carvalho de Meloc045bf02013-09-04 11:52:33 -0300781
Arnaldo Carvalho de Meloeb5b1b12013-09-03 16:37:46 -0300782static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", };
Arnaldo Carvalho de Melo2e3d7fac2018-12-14 15:08:40 -0300783static DEFINE_STRARRAY(sighow, "SIG_");
Arnaldo Carvalho de Meloeb5b1b12013-09-03 16:37:46 -0300784
David Ahern4f8c1b72013-09-22 19:45:00 -0600785static const char *clockid[] = {
786 "REALTIME", "MONOTONIC", "PROCESS_CPUTIME_ID", "THREAD_CPUTIME_ID",
Arnaldo Carvalho de Melo28ebb872015-08-11 10:38:38 -0300787 "MONOTONIC_RAW", "REALTIME_COARSE", "MONOTONIC_COARSE", "BOOTTIME",
788 "REALTIME_ALARM", "BOOTTIME_ALARM", "SGI_CYCLE", "TAI"
David Ahern4f8c1b72013-09-22 19:45:00 -0600789};
Arnaldo Carvalho de Melo2e3d7fac2018-12-14 15:08:40 -0300790static DEFINE_STRARRAY(clockid, "CLOCK_");
David Ahern4f8c1b72013-09-22 19:45:00 -0600791
Arnaldo Carvalho de Melo51108992013-09-04 11:42:27 -0300792static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size,
793 struct syscall_arg *arg)
794{
Arnaldo Carvalho de Meloc65c83f2018-12-14 17:06:47 -0300795 bool show_prefix = arg->show_string_prefix;
796 const char *suffix = "_OK";
Arnaldo Carvalho de Melo51108992013-09-04 11:42:27 -0300797 size_t printed = 0;
798 int mode = arg->val;
799
800 if (mode == F_OK) /* 0 */
Arnaldo Carvalho de Meloc65c83f2018-12-14 17:06:47 -0300801 return scnprintf(bf, size, "F%s", show_prefix ? suffix : "");
Arnaldo Carvalho de Melo51108992013-09-04 11:42:27 -0300802#define P_MODE(n) \
803 if (mode & n##_OK) { \
Arnaldo Carvalho de Meloc65c83f2018-12-14 17:06:47 -0300804 printed += scnprintf(bf + printed, size - printed, "%s%s", #n, show_prefix ? suffix : ""); \
Arnaldo Carvalho de Melo51108992013-09-04 11:42:27 -0300805 mode &= ~n##_OK; \
806 }
807
808 P_MODE(R);
809 P_MODE(W);
810 P_MODE(X);
811#undef P_MODE
812
813 if (mode)
814 printed += scnprintf(bf + printed, size - printed, "|%#x", mode);
815
816 return printed;
817}
818
819#define SCA_ACCMODE syscall_arg__scnprintf_access_mode
820
Arnaldo Carvalho de Melof9945922015-08-04 22:30:09 -0300821static size_t syscall_arg__scnprintf_filename(char *bf, size_t size,
822 struct syscall_arg *arg);
823
824#define SCA_FILENAME syscall_arg__scnprintf_filename
825
Arnaldo Carvalho de Melo46cce192013-09-23 12:52:04 -0300826static size_t syscall_arg__scnprintf_pipe_flags(char *bf, size_t size,
827 struct syscall_arg *arg)
828{
Arnaldo Carvalho de Meloc65c83f2018-12-14 17:06:47 -0300829 bool show_prefix = arg->show_string_prefix;
830 const char *prefix = "O_";
Arnaldo Carvalho de Melo46cce192013-09-23 12:52:04 -0300831 int printed = 0, flags = arg->val;
832
833#define P_FLAG(n) \
834 if (flags & O_##n) { \
Arnaldo Carvalho de Meloc65c83f2018-12-14 17:06:47 -0300835 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
Arnaldo Carvalho de Melo46cce192013-09-23 12:52:04 -0300836 flags &= ~O_##n; \
837 }
838
839 P_FLAG(CLOEXEC);
840 P_FLAG(NONBLOCK);
841#undef P_FLAG
842
843 if (flags)
844 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
845
846 return printed;
847}
848
849#define SCA_PIPE_FLAGS syscall_arg__scnprintf_pipe_flags
850
Arnaldo Carvalho de Meloa355a612016-04-13 11:55:18 -0300851#ifndef GRND_NONBLOCK
852#define GRND_NONBLOCK 0x0001
853#endif
854#ifndef GRND_RANDOM
855#define GRND_RANDOM 0x0002
856#endif
857
Arnaldo Carvalho de Melo39878d42016-03-30 20:02:15 -0300858static size_t syscall_arg__scnprintf_getrandom_flags(char *bf, size_t size,
859 struct syscall_arg *arg)
860{
Arnaldo Carvalho de Meloc65c83f2018-12-14 17:06:47 -0300861 bool show_prefix = arg->show_string_prefix;
862 const char *prefix = "GRND_";
Arnaldo Carvalho de Melo39878d42016-03-30 20:02:15 -0300863 int printed = 0, flags = arg->val;
864
865#define P_FLAG(n) \
866 if (flags & GRND_##n) { \
Arnaldo Carvalho de Meloc65c83f2018-12-14 17:06:47 -0300867 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
Arnaldo Carvalho de Melo39878d42016-03-30 20:02:15 -0300868 flags &= ~GRND_##n; \
869 }
870
871 P_FLAG(RANDOM);
872 P_FLAG(NONBLOCK);
873#undef P_FLAG
874
875 if (flags)
876 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
877
878 return printed;
879}
880
881#define SCA_GETRANDOM_FLAGS syscall_arg__scnprintf_getrandom_flags
882
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300883#define STRARRAY(name, array) \
884 { .scnprintf = SCA_STRARRAY, \
Arnaldo Carvalho de Melod066da92019-10-17 18:33:00 -0300885 .strtoul = STUL_STRARRAY, \
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300886 .parm = &strarray__##array, }
Arnaldo Carvalho de Melo453350d2013-09-20 12:13:37 -0300887
Arnaldo Carvalho de Melof6af0952019-05-21 16:34:03 -0300888#define STRARRAY_FLAGS(name, array) \
889 { .scnprintf = SCA_STRARRAY_FLAGS, \
Arnaldo Carvalho de Meloe0712ba2019-10-19 15:26:50 -0300890 .strtoul = STUL_STRARRAY_FLAGS, \
Arnaldo Carvalho de Melof6af0952019-05-21 16:34:03 -0300891 .parm = &strarray__##array, }
892
Hendrik Brueckner092bd3c2018-01-19 09:56:16 +0100893#include "trace/beauty/arch_errno_names.c"
Arnaldo Carvalho de Meloea8dc3c2016-04-13 12:10:19 -0300894#include "trace/beauty/eventfd.c"
Arnaldo Carvalho de Melod5d71e82016-05-06 12:45:25 -0300895#include "trace/beauty/futex_op.c"
Arnaldo Carvalho de Melo3258abe2018-01-22 12:56:59 -0300896#include "trace/beauty/futex_val3.c"
Arnaldo Carvalho de Melodf4cb162016-04-13 12:05:44 -0300897#include "trace/beauty/mmap.c"
Arnaldo Carvalho de Meloba2f22c2016-04-07 12:05:51 -0300898#include "trace/beauty/mode_t.c"
Arnaldo Carvalho de Meloa30e6252016-04-27 19:01:52 -0300899#include "trace/beauty/msg_flags.c"
Arnaldo Carvalho de Melo8f48df62016-05-06 10:02:32 -0300900#include "trace/beauty/open_flags.c"
Arnaldo Carvalho de Melo62de3442016-04-26 11:03:03 -0300901#include "trace/beauty/perf_event_open.c"
Arnaldo Carvalho de Melod5d71e82016-05-06 12:45:25 -0300902#include "trace/beauty/pid.c"
Arnaldo Carvalho de Meloa3bca912016-04-06 12:51:33 -0300903#include "trace/beauty/sched_policy.c"
Arnaldo Carvalho de Melof5cd95e2016-05-11 10:32:20 -0300904#include "trace/beauty/seccomp.c"
Arnaldo Carvalho de Melo12199d82016-05-06 09:58:02 -0300905#include "trace/beauty/signum.c"
Arnaldo Carvalho de Melobbf86c42016-04-14 13:53:10 -0300906#include "trace/beauty/socket_type.c"
Arnaldo Carvalho de Melo7206b902016-04-06 14:11:36 -0300907#include "trace/beauty/waitid_options.c"
Arnaldo Carvalho de Meloa3bca912016-04-06 12:51:33 -0300908
Arnaldo Carvalho de Melo9b2036c2019-10-01 15:16:33 -0300909static struct syscall_fmt syscall_fmts[] = {
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300910 { .name = "access",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300911 .arg = { [1] = { .scnprintf = SCA_ACCMODE, /* mode */ }, }, },
Arnaldo Carvalho de Melofb7068e2018-12-18 11:05:56 -0300912 { .name = "arch_prctl",
913 .arg = { [0] = { .scnprintf = SCA_X86_ARCH_PRCTL_CODE, /* code */ },
914 [1] = { .scnprintf = SCA_PTR, /* arg2 */ }, }, },
Arnaldo Carvalho de Melo02ef2882018-08-28 17:03:53 -0300915 { .name = "bind",
Arnaldo Carvalho de Meloef969ca642019-07-16 17:21:09 -0300916 .arg = { [0] = { .scnprintf = SCA_INT, /* fd */ },
Arnaldo Carvalho de Melo247dd652019-07-16 17:38:26 -0300917 [1] = { .scnprintf = SCA_SOCKADDR, /* umyaddr */ },
918 [2] = { .scnprintf = SCA_INT, /* addrlen */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300919 { .name = "bpf",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300920 .arg = { [0] = STRARRAY(cmd, bpf_cmd), }, },
Arnaldo Carvalho de Melobeccb2b2013-08-26 12:29:38 -0300921 { .name = "brk", .hexret = true,
Arnaldo Carvalho de Meloce055392018-12-17 12:21:09 -0300922 .arg = { [0] = { .scnprintf = SCA_PTR, /* brk */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300923 { .name = "clock_gettime",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300924 .arg = { [0] = STRARRAY(clk_id, clockid), }, },
Arnaldo Carvalho de Melo33396a32017-07-19 16:15:17 -0300925 { .name = "clone", .errpid = true, .nr_args = 5,
926 .arg = { [0] = { .name = "flags", .scnprintf = SCA_CLONE_FLAGS, },
927 [1] = { .name = "child_stack", .scnprintf = SCA_HEX, },
928 [2] = { .name = "parent_tidptr", .scnprintf = SCA_HEX, },
929 [3] = { .name = "child_tidptr", .scnprintf = SCA_HEX, },
930 [4] = { .name = "tls", .scnprintf = SCA_HEX, }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300931 { .name = "close",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300932 .arg = { [0] = { .scnprintf = SCA_CLOSE_FD, /* fd */ }, }, },
Arnaldo Carvalho de Melod5a7e662018-08-28 16:24:44 -0300933 { .name = "connect",
Arnaldo Carvalho de Meloef969ca642019-07-16 17:21:09 -0300934 .arg = { [0] = { .scnprintf = SCA_INT, /* fd */ },
935 [1] = { .scnprintf = SCA_SOCKADDR, /* servaddr */ },
Arnaldo Carvalho de Melo1d862752019-07-16 16:34:27 -0300936 [2] = { .scnprintf = SCA_INT, /* addrlen */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300937 { .name = "epoll_ctl",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300938 .arg = { [1] = STRARRAY(op, epoll_ctl_ops), }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300939 { .name = "eventfd2",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300940 .arg = { [1] = { .scnprintf = SCA_EFD_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300941 { .name = "fchmodat",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300942 .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300943 { .name = "fchownat",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300944 .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300945 { .name = "fcntl",
Arnaldo Carvalho de Melo82c38332019-10-18 15:44:42 -0300946 .arg = { [1] = { .scnprintf = SCA_FCNTL_CMD, /* cmd */
947 .strtoul = STUL_STRARRAYS,
Arnaldo Carvalho de Melo39cc3552017-07-17 16:02:52 -0300948 .parm = &strarrays__fcntl_cmds_arrays,
949 .show_zero = true, },
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300950 [2] = { .scnprintf = SCA_FCNTL_ARG, /* arg */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300951 { .name = "flock",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300952 .arg = { [1] = { .scnprintf = SCA_FLOCK, /* cmd */ }, }, },
Arnaldo Carvalho de Melodcc6fd62019-05-21 15:36:44 -0300953 { .name = "fsconfig",
954 .arg = { [1] = STRARRAY(cmd, fsconfig_cmds), }, },
Arnaldo Carvalho de Melof6af0952019-05-21 16:34:03 -0300955 { .name = "fsmount",
956 .arg = { [1] = STRARRAY_FLAGS(flags, fsmount_flags),
957 [2] = { .scnprintf = SCA_FSMOUNT_ATTR_FLAGS, /* attr_flags */ }, }, },
Arnaldo Carvalho de Melo693bd392019-05-20 16:24:15 -0300958 { .name = "fspick",
959 .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ },
960 [1] = { .scnprintf = SCA_FILENAME, /* path */ },
961 [2] = { .scnprintf = SCA_FSPICK_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300962 { .name = "fstat", .alias = "newfstat", },
963 { .name = "fstatat", .alias = "newfstatat", },
964 { .name = "futex",
Arnaldo Carvalho de Melo3258abe2018-01-22 12:56:59 -0300965 .arg = { [1] = { .scnprintf = SCA_FUTEX_OP, /* op */ },
966 [5] = { .scnprintf = SCA_FUTEX_VAL3, /* val3 */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300967 { .name = "futimesat",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300968 .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300969 { .name = "getitimer",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300970 .arg = { [0] = STRARRAY(which, itimers), }, },
Arnaldo Carvalho de Meloc65f1072016-04-06 14:55:18 -0300971 { .name = "getpid", .errpid = true, },
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -0300972 { .name = "getpgid", .errpid = true, },
Arnaldo Carvalho de Meloc65f1072016-04-06 14:55:18 -0300973 { .name = "getppid", .errpid = true, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300974 { .name = "getrandom",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300975 .arg = { [2] = { .scnprintf = SCA_GETRANDOM_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300976 { .name = "getrlimit",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300977 .arg = { [0] = STRARRAY(resource, rlimit_resources), }, },
Arnaldo Carvalho de Melo2d1073d2018-01-09 12:03:47 -0300978 { .name = "gettid", .errpid = true, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300979 { .name = "ioctl",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300980 .arg = {
Arnaldo Carvalho de Melo844ae5b2014-02-10 14:09:48 -0300981#if defined(__i386__) || defined(__x86_64__)
982/*
983 * FIXME: Make this available to all arches.
984 */
Arnaldo Carvalho de Melo1cc47f2d2017-07-31 13:20:14 -0300985 [1] = { .scnprintf = SCA_IOCTL_CMD, /* cmd */ },
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300986 [2] = { .scnprintf = SCA_HEX, /* arg */ }, }, },
Arnaldo Carvalho de Melo844ae5b2014-02-10 14:09:48 -0300987#else
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300988 [2] = { .scnprintf = SCA_HEX, /* arg */ }, }, },
Arnaldo Carvalho de Melo844ae5b2014-02-10 14:09:48 -0300989#endif
Arnaldo Carvalho de Melo1de30382017-10-31 11:32:23 -0300990 { .name = "kcmp", .nr_args = 5,
991 .arg = { [0] = { .name = "pid1", .scnprintf = SCA_PID, },
992 [1] = { .name = "pid2", .scnprintf = SCA_PID, },
993 [2] = { .name = "type", .scnprintf = SCA_KCMP_TYPE, },
994 [3] = { .name = "idx1", .scnprintf = SCA_KCMP_IDX, },
995 [4] = { .name = "idx2", .scnprintf = SCA_KCMP_IDX, }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300996 { .name = "keyctl",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300997 .arg = { [0] = STRARRAY(option, keyctl_options), }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -0300998 { .name = "kill",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -0300999 .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001000 { .name = "linkat",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001001 .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001002 { .name = "lseek",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001003 .arg = { [2] = STRARRAY(whence, whences), }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001004 { .name = "lstat", .alias = "newlstat", },
1005 { .name = "madvise",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001006 .arg = { [0] = { .scnprintf = SCA_HEX, /* start */ },
1007 [2] = { .scnprintf = SCA_MADV_BHV, /* behavior */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001008 { .name = "mkdirat",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001009 .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001010 { .name = "mknodat",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001011 .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, },
Arnaldo Carvalho de Melobeccb2b2013-08-26 12:29:38 -03001012 { .name = "mmap", .hexret = true,
Jiri Olsa54265662017-05-31 13:35:57 +02001013/* The standard mmap maps to old_mmap on s390x */
1014#if defined(__s390x__)
1015 .alias = "old_mmap",
1016#endif
Arnaldo Carvalho de Meloce055392018-12-17 12:21:09 -03001017 .arg = { [2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ },
Arnaldo Carvalho de Melo27198a82019-10-19 15:30:15 -03001018 [3] = { .scnprintf = SCA_MMAP_FLAGS, /* flags */
1019 .strtoul = STUL_STRARRAY_FLAGS,
1020 .parm = &strarray__mmap_flags, },
Arnaldo Carvalho de Meloa6631342018-12-18 11:25:08 -03001021 [5] = { .scnprintf = SCA_HEX, /* offset */ }, }, },
Arnaldo Carvalho de Melo73d141a2018-10-25 15:18:06 -03001022 { .name = "mount",
Arnaldo Carvalho de Melo23c07a22018-10-26 13:51:45 -03001023 .arg = { [0] = { .scnprintf = SCA_FILENAME, /* dev_name */ },
1024 [3] = { .scnprintf = SCA_MOUNT_FLAGS, /* flags */
Arnaldo Carvalho de Melo73d141a2018-10-25 15:18:06 -03001025 .mask_val = SCAMV_MOUNT_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo566e3022019-05-20 14:58:03 -03001026 { .name = "move_mount",
1027 .arg = { [0] = { .scnprintf = SCA_FDAT, /* from_dfd */ },
1028 [1] = { .scnprintf = SCA_FILENAME, /* from_pathname */ },
1029 [2] = { .scnprintf = SCA_FDAT, /* to_dfd */ },
1030 [3] = { .scnprintf = SCA_FILENAME, /* to_pathname */ },
1031 [4] = { .scnprintf = SCA_MOVE_MOUNT_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001032 { .name = "mprotect",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001033 .arg = { [0] = { .scnprintf = SCA_HEX, /* start */ },
1034 [2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001035 { .name = "mq_unlink",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001036 .arg = { [0] = { .scnprintf = SCA_FILENAME, /* u_name */ }, }, },
Arnaldo Carvalho de Meloae685382013-08-20 17:44:42 -03001037 { .name = "mremap", .hexret = true,
Arnaldo Carvalho de Meloce055392018-12-17 12:21:09 -03001038 .arg = { [3] = { .scnprintf = SCA_MREMAP_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001039 { .name = "name_to_handle_at",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001040 .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001041 { .name = "newfstatat",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001042 .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001043 { .name = "open",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001044 .arg = { [1] = { .scnprintf = SCA_OPEN_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001045 { .name = "open_by_handle_at",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001046 .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ },
1047 [2] = { .scnprintf = SCA_OPEN_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001048 { .name = "openat",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001049 .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ },
1050 [2] = { .scnprintf = SCA_OPEN_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001051 { .name = "perf_event_open",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001052 .arg = { [2] = { .scnprintf = SCA_INT, /* cpu */ },
1053 [3] = { .scnprintf = SCA_FD, /* group_fd */ },
1054 [4] = { .scnprintf = SCA_PERF_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001055 { .name = "pipe2",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001056 .arg = { [1] = { .scnprintf = SCA_PIPE_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo83bc9c372017-08-28 11:47:11 -03001057 { .name = "pkey_alloc",
1058 .arg = { [1] = { .scnprintf = SCA_PKEY_ALLOC_ACCESS_RIGHTS, /* access_rights */ }, }, },
1059 { .name = "pkey_free",
1060 .arg = { [0] = { .scnprintf = SCA_INT, /* key */ }, }, },
1061 { .name = "pkey_mprotect",
1062 .arg = { [0] = { .scnprintf = SCA_HEX, /* start */ },
1063 [2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ },
1064 [3] = { .scnprintf = SCA_INT, /* pkey */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001065 { .name = "poll", .timeout = true, },
1066 { .name = "ppoll", .timeout = true, },
Arnaldo Carvalho de Melofb7068e2018-12-18 11:05:56 -03001067 { .name = "prctl",
Arnaldo Carvalho de Melod7a07b22020-02-11 15:54:08 -03001068 .arg = { [0] = { .scnprintf = SCA_PRCTL_OPTION, /* option */
1069 .strtoul = STUL_STRARRAY,
1070 .parm = &strarray__prctl_options, },
Arnaldo Carvalho de Melod688d032017-10-26 15:19:35 -03001071 [1] = { .scnprintf = SCA_PRCTL_ARG2, /* arg2 */ },
1072 [2] = { .scnprintf = SCA_PRCTL_ARG3, /* arg3 */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001073 { .name = "pread", .alias = "pread64", },
1074 { .name = "preadv", .alias = "pread", },
1075 { .name = "prlimit64",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001076 .arg = { [1] = STRARRAY(resource, rlimit_resources), }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001077 { .name = "pwrite", .alias = "pwrite64", },
1078 { .name = "readlinkat",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001079 .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001080 { .name = "recvfrom",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001081 .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001082 { .name = "recvmmsg",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001083 .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001084 { .name = "recvmsg",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001085 .arg = { [2] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001086 { .name = "renameat",
Arnaldo Carvalho de Melo436651c2018-12-11 11:19:23 -03001087 .arg = { [0] = { .scnprintf = SCA_FDAT, /* olddirfd */ },
1088 [2] = { .scnprintf = SCA_FDAT, /* newdirfd */ }, }, },
Arnaldo Carvalho de Melo84a83542018-12-11 09:53:21 -03001089 { .name = "renameat2",
1090 .arg = { [0] = { .scnprintf = SCA_FDAT, /* olddirfd */ },
Arnaldo Carvalho de Meloca7ff2c2018-12-11 10:39:30 -03001091 [2] = { .scnprintf = SCA_FDAT, /* newdirfd */ },
1092 [4] = { .scnprintf = SCA_RENAMEAT2_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001093 { .name = "rt_sigaction",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001094 .arg = { [0] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001095 { .name = "rt_sigprocmask",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001096 .arg = { [0] = STRARRAY(how, sighow), }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001097 { .name = "rt_sigqueueinfo",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001098 .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001099 { .name = "rt_tgsigqueueinfo",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001100 .arg = { [2] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001101 { .name = "sched_setscheduler",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001102 .arg = { [1] = { .scnprintf = SCA_SCHED_POLICY, /* policy */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001103 { .name = "seccomp",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001104 .arg = { [0] = { .scnprintf = SCA_SECCOMP_OP, /* op */ },
1105 [1] = { .scnprintf = SCA_SECCOMP_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001106 { .name = "select", .timeout = true, },
Arnaldo Carvalho de Meloe4b00e92019-07-17 20:32:13 -03001107 { .name = "sendfile", .alias = "sendfile64", },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001108 { .name = "sendmmsg",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001109 .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001110 { .name = "sendmsg",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001111 .arg = { [2] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001112 { .name = "sendto",
Arnaldo Carvalho de Melo6ebb6862018-08-29 08:47:08 -03001113 .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ },
1114 [4] = { .scnprintf = SCA_SOCKADDR, /* addr */ }, }, },
Arnaldo Carvalho de Meloc65f1072016-04-06 14:55:18 -03001115 { .name = "set_tid_address", .errpid = true, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001116 { .name = "setitimer",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001117 .arg = { [0] = STRARRAY(which, itimers), }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001118 { .name = "setrlimit",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001119 .arg = { [0] = STRARRAY(resource, rlimit_resources), }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001120 { .name = "socket",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001121 .arg = { [0] = STRARRAY(family, socket_families),
Arnaldo Carvalho de Melo162d3ed2018-07-26 09:26:13 -03001122 [1] = { .scnprintf = SCA_SK_TYPE, /* type */ },
1123 [2] = { .scnprintf = SCA_SK_PROTO, /* protocol */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001124 { .name = "socketpair",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001125 .arg = { [0] = STRARRAY(family, socket_families),
Arnaldo Carvalho de Melo162d3ed2018-07-26 09:26:13 -03001126 [1] = { .scnprintf = SCA_SK_TYPE, /* type */ },
1127 [2] = { .scnprintf = SCA_SK_PROTO, /* protocol */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001128 { .name = "stat", .alias = "newstat", },
1129 { .name = "statx",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001130 .arg = { [0] = { .scnprintf = SCA_FDAT, /* fdat */ },
1131 [2] = { .scnprintf = SCA_STATX_FLAGS, /* flags */ } ,
1132 [3] = { .scnprintf = SCA_STATX_MASK, /* mask */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001133 { .name = "swapoff",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001134 .arg = { [0] = { .scnprintf = SCA_FILENAME, /* specialfile */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001135 { .name = "swapon",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001136 .arg = { [0] = { .scnprintf = SCA_FILENAME, /* specialfile */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001137 { .name = "symlinkat",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001138 .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, },
Arnaldo Carvalho de Meloa9a187a2019-05-21 21:47:07 -03001139 { .name = "sync_file_range",
1140 .arg = { [3] = { .scnprintf = SCA_SYNC_FILE_RANGE_FLAGS, /* flags */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001141 { .name = "tgkill",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001142 .arg = { [2] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001143 { .name = "tkill",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001144 .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, },
Arnaldo Carvalho de Melo476c92ca2018-10-26 13:23:25 -03001145 { .name = "umount2", .alias = "umount",
1146 .arg = { [0] = { .scnprintf = SCA_FILENAME, /* name */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001147 { .name = "uname", .alias = "newuname", },
1148 { .name = "unlinkat",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001149 .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, },
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03001150 { .name = "utimensat",
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001151 .arg = { [0] = { .scnprintf = SCA_FDAT, /* dirfd */ }, }, },
Arnaldo Carvalho de Melo11c8e392016-04-06 14:33:07 -03001152 { .name = "wait4", .errpid = true,
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001153 .arg = { [2] = { .scnprintf = SCA_WAITID_OPTIONS, /* options */ }, }, },
Arnaldo Carvalho de Melo11c8e392016-04-06 14:33:07 -03001154 { .name = "waitid", .errpid = true,
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001155 .arg = { [3] = { .scnprintf = SCA_WAITID_OPTIONS, /* options */ }, }, },
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03001156};
1157
1158static int syscall_fmt__cmp(const void *name, const void *fmtp)
1159{
1160 const struct syscall_fmt *fmt = fmtp;
1161 return strcmp(name, fmt->name);
1162}
1163
Arnaldo Carvalho de Melobcddbfc2019-10-01 15:27:55 -03001164static struct syscall_fmt *__syscall_fmt__find(struct syscall_fmt *fmts, const int nmemb, const char *name)
1165{
1166 return bsearch(name, fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp);
1167}
1168
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03001169static struct syscall_fmt *syscall_fmt__find(const char *name)
1170{
1171 const int nmemb = ARRAY_SIZE(syscall_fmts);
Arnaldo Carvalho de Melobcddbfc2019-10-01 15:27:55 -03001172 return __syscall_fmt__find(syscall_fmts, nmemb, name);
1173}
1174
1175static struct syscall_fmt *__syscall_fmt__find_by_alias(struct syscall_fmt *fmts, const int nmemb, const char *alias)
1176{
1177 int i;
1178
1179 for (i = 0; i < nmemb; ++i) {
1180 if (fmts[i].alias && strcmp(fmts[i].alias, alias) == 0)
1181 return &fmts[i];
1182 }
1183
1184 return NULL;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03001185}
1186
Arnaldo Carvalho de Melof9321842018-10-25 17:24:45 -03001187static struct syscall_fmt *syscall_fmt__find_by_alias(const char *alias)
1188{
Arnaldo Carvalho de Melobcddbfc2019-10-01 15:27:55 -03001189 const int nmemb = ARRAY_SIZE(syscall_fmts);
1190 return __syscall_fmt__find_by_alias(syscall_fmts, nmemb, alias);
Arnaldo Carvalho de Melof9321842018-10-25 17:24:45 -03001191}
1192
Arnaldo Carvalho de Melo6a648b52018-08-02 10:30:08 -03001193/*
1194 * is_exit: is this "exit" or "exit_group"?
1195 * is_open: is this "open" or "openat"? To associate the fd returned in sys_exit with the pathname in sys_enter.
Arnaldo Carvalho de Melo7a983a02018-08-20 17:58:17 -03001196 * args_size: sum of the sizes of the syscall arguments, anything after that is augmented stuff: pathname for openat, etc.
Arnaldo Carvalho de Melob8b10332019-07-17 20:21:37 -03001197 * nonexistent: Just a hole in the syscall table, syscall id not allocated
Arnaldo Carvalho de Melo6a648b52018-08-02 10:30:08 -03001198 */
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03001199struct syscall {
Tzvetomir Stoyanov97fbf3f2018-11-30 10:44:07 -05001200 struct tep_event *tp_format;
Arnaldo Carvalho de Melof208bd82015-03-20 17:46:53 -03001201 int nr_args;
Arnaldo Carvalho de Melo7a983a02018-08-20 17:58:17 -03001202 int args_size;
Arnaldo Carvalho de Melo6ff8fff2019-07-16 10:59:19 -03001203 struct {
1204 struct bpf_program *sys_enter,
1205 *sys_exit;
1206 } bpf_prog;
Arnaldo Carvalho de Melo6a648b52018-08-02 10:30:08 -03001207 bool is_exit;
1208 bool is_open;
Arnaldo Carvalho de Melob8b10332019-07-17 20:21:37 -03001209 bool nonexistent;
Tzvetomir Stoyanov (VMware)2c92f982018-09-19 14:56:45 -04001210 struct tep_format_field *args;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03001211 const char *name;
1212 struct syscall_fmt *fmt;
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001213 struct syscall_arg_fmt *arg_fmt;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03001214};
1215
Arnaldo Carvalho de Melo4cae86752019-06-03 16:52:46 -03001216/*
1217 * Must match what is in the BPF program:
1218 *
1219 * tools/perf/examples/bpf/augmented_raw_syscalls.c
1220 */
Arnaldo Carvalho de Melobbab50d2018-12-12 16:54:09 -03001221struct bpf_map_syscall_entry {
1222 bool enabled;
Arnaldo Carvalho de Melo4cae86752019-06-03 16:52:46 -03001223 u16 string_args_len[6];
Arnaldo Carvalho de Melobbab50d2018-12-12 16:54:09 -03001224};
1225
Arnaldo Carvalho de Melofd2b2972017-03-29 16:37:51 -03001226/*
1227 * We need to have this 'calculated' boolean because in some cases we really
1228 * don't know what is the duration of a syscall, for instance, when we start
1229 * a session and some threads are waiting for a syscall to finish, say 'poll',
1230 * in which case all we can do is to print "( ? ) for duration and for the
1231 * start timestamp.
1232 */
1233static size_t fprintf_duration(unsigned long t, bool calculated, FILE *fp)
Arnaldo Carvalho de Melo60c907a2012-10-24 17:24:47 -02001234{
1235 double duration = (double)t / NSEC_PER_MSEC;
1236 size_t printed = fprintf(fp, "(");
1237
Arnaldo Carvalho de Melofd2b2972017-03-29 16:37:51 -03001238 if (!calculated)
Arnaldo Carvalho de Melo522283f2018-01-22 11:42:11 -03001239 printed += fprintf(fp, " ");
Arnaldo Carvalho de Melofd2b2972017-03-29 16:37:51 -03001240 else if (duration >= 1.0)
Arnaldo Carvalho de Melo60c907a2012-10-24 17:24:47 -02001241 printed += color_fprintf(fp, PERF_COLOR_RED, "%6.3f ms", duration);
1242 else if (duration >= 0.01)
1243 printed += color_fprintf(fp, PERF_COLOR_YELLOW, "%6.3f ms", duration);
1244 else
1245 printed += color_fprintf(fp, PERF_COLOR_NORMAL, "%6.3f ms", duration);
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03001246 return printed + fprintf(fp, "): ");
Arnaldo Carvalho de Melo60c907a2012-10-24 17:24:47 -02001247}
1248
Arnaldo Carvalho de Melof9945922015-08-04 22:30:09 -03001249/**
1250 * filename.ptr: The filename char pointer that will be vfs_getname'd
1251 * filename.entry_str_pos: Where to insert the string translated from
1252 * filename.ptr by the vfs_getname tracepoint/kprobe.
Arnaldo Carvalho de Melo84486ca2017-07-14 11:35:03 -03001253 * ret_scnprintf: syscall args may set this to a different syscall return
1254 * formatter, for instance, fcntl may return fds, file flags, etc.
Arnaldo Carvalho de Melof9945922015-08-04 22:30:09 -03001255 */
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001256struct thread_trace {
1257 u64 entry_time;
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001258 bool entry_pending;
Arnaldo Carvalho de Meloefd57452012-10-17 17:09:46 -03001259 unsigned long nr_events;
Stanislav Fomicheva2ea67d2014-07-08 22:05:16 +04001260 unsigned long pfmaj, pfmin;
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001261 char *entry_str;
Arnaldo Carvalho de Melo1302d882012-10-17 17:13:12 -03001262 double runtime_ms;
Arnaldo Carvalho de Melo7ee57432017-07-14 15:16:54 -03001263 size_t (*ret_scnprintf)(char *bf, size_t size, struct syscall_arg *arg);
Arnaldo Carvalho de Melof9945922015-08-04 22:30:09 -03001264 struct {
1265 unsigned long ptr;
Arnaldo Carvalho de Melo7f4f8002015-08-14 13:16:27 -03001266 short int entry_str_pos;
1267 bool pending_open;
1268 unsigned int namelen;
1269 char *name;
Arnaldo Carvalho de Melof9945922015-08-04 22:30:09 -03001270 } filename;
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001271 struct {
Arnaldo Carvalho de Melof4a74fc2018-12-27 10:56:12 -03001272 int max;
1273 struct file *table;
1274 } files;
David Ahernbf2575c2013-10-08 21:26:53 -06001275
1276 struct intlist *syscall_stats;
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001277};
1278
1279static struct thread_trace *thread_trace__new(void)
1280{
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001281 struct thread_trace *ttrace = zalloc(sizeof(struct thread_trace));
1282
Leo Yan7a6d49d2019-07-02 18:34:14 +08001283 if (ttrace) {
Arnaldo Carvalho de Melof4a74fc2018-12-27 10:56:12 -03001284 ttrace->files.max = -1;
Leo Yan7a6d49d2019-07-02 18:34:14 +08001285 ttrace->syscall_stats = intlist__new(NULL);
1286 }
David Ahernbf2575c2013-10-08 21:26:53 -06001287
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001288 return ttrace;
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001289}
1290
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03001291static struct thread_trace *thread__trace(struct thread *thread, FILE *fp)
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001292{
Arnaldo Carvalho de Meloefd57452012-10-17 17:09:46 -03001293 struct thread_trace *ttrace;
1294
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001295 if (thread == NULL)
1296 goto fail;
1297
Namhyung Kim89dceb22014-10-06 09:46:03 +09001298 if (thread__priv(thread) == NULL)
1299 thread__set_priv(thread, thread_trace__new());
Arnaldo Carvalho de Melo48000a12014-12-17 17:24:45 -03001300
Namhyung Kim89dceb22014-10-06 09:46:03 +09001301 if (thread__priv(thread) == NULL)
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001302 goto fail;
1303
Namhyung Kim89dceb22014-10-06 09:46:03 +09001304 ttrace = thread__priv(thread);
Arnaldo Carvalho de Meloefd57452012-10-17 17:09:46 -03001305 ++ttrace->nr_events;
1306
1307 return ttrace;
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001308fail:
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03001309 color_fprintf(fp, PERF_COLOR_RED,
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001310 "WARNING: not enough memory, dropping samples!\n");
1311 return NULL;
1312}
1313
Arnaldo Carvalho de Melo84486ca2017-07-14 11:35:03 -03001314
1315void syscall_arg__set_ret_scnprintf(struct syscall_arg *arg,
Arnaldo Carvalho de Melo7ee57432017-07-14 15:16:54 -03001316 size_t (*ret_scnprintf)(char *bf, size_t size, struct syscall_arg *arg))
Arnaldo Carvalho de Melo84486ca2017-07-14 11:35:03 -03001317{
1318 struct thread_trace *ttrace = thread__priv(arg->thread);
1319
1320 ttrace->ret_scnprintf = ret_scnprintf;
1321}
1322
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04001323#define TRACE_PFMAJ (1 << 0)
1324#define TRACE_PFMIN (1 << 1)
1325
Arnaldo Carvalho de Meloe4d44e82015-08-04 22:17:29 -03001326static const size_t trace__entry_str_size = 2048;
1327
Arnaldo Carvalho de Melod7e13482018-12-27 11:05:18 -03001328static struct file *thread_trace__files_entry(struct thread_trace *ttrace, int fd)
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001329{
Arnaldo Carvalho de Melo05107482019-02-12 10:18:36 -03001330 if (fd < 0)
1331 return NULL;
1332
Arnaldo Carvalho de Melof4a74fc2018-12-27 10:56:12 -03001333 if (fd > ttrace->files.max) {
1334 struct file *nfiles = realloc(ttrace->files.table, (fd + 1) * sizeof(struct file));
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001335
Arnaldo Carvalho de Melof4a74fc2018-12-27 10:56:12 -03001336 if (nfiles == NULL)
Arnaldo Carvalho de Melod7e13482018-12-27 11:05:18 -03001337 return NULL;
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001338
Arnaldo Carvalho de Melof4a74fc2018-12-27 10:56:12 -03001339 if (ttrace->files.max != -1) {
1340 memset(nfiles + ttrace->files.max + 1, 0,
1341 (fd - ttrace->files.max) * sizeof(struct file));
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001342 } else {
Arnaldo Carvalho de Melof4a74fc2018-12-27 10:56:12 -03001343 memset(nfiles, 0, (fd + 1) * sizeof(struct file));
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001344 }
1345
Arnaldo Carvalho de Melof4a74fc2018-12-27 10:56:12 -03001346 ttrace->files.table = nfiles;
1347 ttrace->files.max = fd;
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001348 }
1349
Arnaldo Carvalho de Melod7e13482018-12-27 11:05:18 -03001350 return ttrace->files.table + fd;
1351}
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001352
Arnaldo Carvalho de Melo2d473382018-12-27 16:19:33 -03001353struct file *thread__files_entry(struct thread *thread, int fd)
1354{
1355 return thread_trace__files_entry(thread__priv(thread), fd);
1356}
1357
Arnaldo Carvalho de Melod7e13482018-12-27 11:05:18 -03001358static int trace__set_fd_pathname(struct thread *thread, int fd, const char *pathname)
1359{
1360 struct thread_trace *ttrace = thread__priv(thread);
1361 struct file *file = thread_trace__files_entry(ttrace, fd);
1362
1363 if (file != NULL) {
Arnaldo Carvalho de Melo4bcc4cf2018-12-27 13:32:59 -03001364 struct stat st;
1365 if (stat(pathname, &st) == 0)
1366 file->dev_maj = major(st.st_rdev);
Arnaldo Carvalho de Melod7e13482018-12-27 11:05:18 -03001367 file->pathname = strdup(pathname);
1368 if (file->pathname)
1369 return 0;
1370 }
1371
1372 return -1;
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001373}
1374
Arnaldo Carvalho de Melo97119f32013-09-27 17:34:10 -03001375static int thread__read_fd_path(struct thread *thread, int fd)
1376{
1377 char linkname[PATH_MAX], pathname[PATH_MAX];
1378 struct stat st;
1379 int ret;
1380
1381 if (thread->pid_ == thread->tid) {
1382 scnprintf(linkname, sizeof(linkname),
1383 "/proc/%d/fd/%d", thread->pid_, fd);
1384 } else {
1385 scnprintf(linkname, sizeof(linkname),
1386 "/proc/%d/task/%d/fd/%d", thread->pid_, thread->tid, fd);
1387 }
1388
1389 if (lstat(linkname, &st) < 0 || st.st_size + 1 > (off_t)sizeof(pathname))
1390 return -1;
1391
1392 ret = readlink(linkname, pathname, sizeof(pathname));
1393
1394 if (ret < 0 || ret > st.st_size)
1395 return -1;
1396
1397 pathname[ret] = '\0';
1398 return trace__set_fd_pathname(thread, fd, pathname);
1399}
1400
Arnaldo Carvalho de Meloc5227392013-09-27 18:06:19 -03001401static const char *thread__fd_path(struct thread *thread, int fd,
1402 struct trace *trace)
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001403{
Namhyung Kim89dceb22014-10-06 09:46:03 +09001404 struct thread_trace *ttrace = thread__priv(thread);
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001405
Arnaldo Carvalho de Melo79d725c2019-07-16 16:56:49 -03001406 if (ttrace == NULL || trace->fd_path_disabled)
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001407 return NULL;
1408
1409 if (fd < 0)
1410 return NULL;
1411
Arnaldo Carvalho de Melof4a74fc2018-12-27 10:56:12 -03001412 if ((fd > ttrace->files.max || ttrace->files.table[fd].pathname == NULL)) {
Arnaldo Carvalho de Meloc5227392013-09-27 18:06:19 -03001413 if (!trace->live)
1414 return NULL;
1415 ++trace->stats.proc_getname;
Arnaldo Carvalho de Melocdcd1e62014-06-10 16:00:18 -03001416 if (thread__read_fd_path(thread, fd))
Arnaldo Carvalho de Meloc5227392013-09-27 18:06:19 -03001417 return NULL;
1418 }
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001419
Arnaldo Carvalho de Melof4a74fc2018-12-27 10:56:12 -03001420 return ttrace->files.table[fd].pathname;
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001421}
1422
Arnaldo Carvalho de Melofc65eb82017-07-14 15:21:40 -03001423size_t syscall_arg__scnprintf_fd(char *bf, size_t size, struct syscall_arg *arg)
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001424{
1425 int fd = arg->val;
1426 size_t printed = scnprintf(bf, size, "%d", fd);
Arnaldo Carvalho de Meloc5227392013-09-27 18:06:19 -03001427 const char *path = thread__fd_path(arg->thread, fd, arg->trace);
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001428
1429 if (path)
1430 printed += scnprintf(bf + printed, size - printed, "<%s>", path);
1431
1432 return printed;
1433}
1434
Arnaldo Carvalho de Melo0a2f75402017-10-31 11:30:09 -03001435size_t pid__scnprintf_fd(struct trace *trace, pid_t pid, int fd, char *bf, size_t size)
1436{
1437 size_t printed = scnprintf(bf, size, "%d", fd);
1438 struct thread *thread = machine__find_thread(trace->host, pid, pid);
1439
1440 if (thread) {
1441 const char *path = thread__fd_path(thread, fd, trace);
1442
1443 if (path)
1444 printed += scnprintf(bf + printed, size - printed, "<%s>", path);
1445
1446 thread__put(thread);
1447 }
1448
1449 return printed;
1450}
1451
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001452static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size,
1453 struct syscall_arg *arg)
1454{
1455 int fd = arg->val;
1456 size_t printed = syscall_arg__scnprintf_fd(bf, size, arg);
Namhyung Kim89dceb22014-10-06 09:46:03 +09001457 struct thread_trace *ttrace = thread__priv(arg->thread);
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001458
Arnaldo Carvalho de Melof4a74fc2018-12-27 10:56:12 -03001459 if (ttrace && fd >= 0 && fd <= ttrace->files.max)
1460 zfree(&ttrace->files.table[fd].pathname);
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03001461
1462 return printed;
1463}
1464
Arnaldo Carvalho de Melof9945922015-08-04 22:30:09 -03001465static void thread__set_filename_pos(struct thread *thread, const char *bf,
1466 unsigned long ptr)
1467{
1468 struct thread_trace *ttrace = thread__priv(thread);
1469
1470 ttrace->filename.ptr = ptr;
1471 ttrace->filename.entry_str_pos = bf - ttrace->entry_str;
1472}
1473
Arnaldo Carvalho de Melo75d1e302018-08-21 12:00:39 -03001474static size_t syscall_arg__scnprintf_augmented_string(struct syscall_arg *arg, char *bf, size_t size)
1475{
1476 struct augmented_arg *augmented_arg = arg->augmented.args;
Arnaldo Carvalho de Melo81951682019-06-05 10:34:47 -03001477 size_t printed = scnprintf(bf, size, "\"%.*s\"", augmented_arg->size, augmented_arg->value);
1478 /*
1479 * So that the next arg with a payload can consume its augmented arg, i.e. for rename* syscalls
1480 * we would have two strings, each prefixed by its size.
1481 */
1482 int consumed = sizeof(*augmented_arg) + augmented_arg->size;
Arnaldo Carvalho de Melo75d1e302018-08-21 12:00:39 -03001483
Arnaldo Carvalho de Melo016f3272019-06-14 16:50:19 -03001484 arg->augmented.args = ((void *)arg->augmented.args) + consumed;
Arnaldo Carvalho de Melo81951682019-06-05 10:34:47 -03001485 arg->augmented.size -= consumed;
1486
1487 return printed;
Arnaldo Carvalho de Melo75d1e302018-08-21 12:00:39 -03001488}
1489
Arnaldo Carvalho de Melof9945922015-08-04 22:30:09 -03001490static size_t syscall_arg__scnprintf_filename(char *bf, size_t size,
1491 struct syscall_arg *arg)
1492{
1493 unsigned long ptr = arg->val;
1494
Arnaldo Carvalho de Melo75d1e302018-08-21 12:00:39 -03001495 if (arg->augmented.args)
1496 return syscall_arg__scnprintf_augmented_string(arg, bf, size);
1497
Arnaldo Carvalho de Melof9945922015-08-04 22:30:09 -03001498 if (!arg->trace->vfs_getname)
1499 return scnprintf(bf, size, "%#x", ptr);
1500
1501 thread__set_filename_pos(arg->thread, bf, ptr);
1502 return 0;
1503}
1504
Arnaldo Carvalho de Meloae9ed032012-10-08 09:56:00 -03001505static bool trace__filter_duration(struct trace *trace, double t)
1506{
1507 return t < (trace->duration_filter * NSEC_PER_MSEC);
1508}
1509
Arnaldo Carvalho de Melofd2b2972017-03-29 16:37:51 -03001510static size_t __trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp)
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001511{
1512 double ts = (double)(tstamp - trace->base_time) / NSEC_PER_MSEC;
1513
Arnaldo Carvalho de Melo60c907a2012-10-24 17:24:47 -02001514 return fprintf(fp, "%10.3f ", ts);
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001515}
1516
Arnaldo Carvalho de Melofd2b2972017-03-29 16:37:51 -03001517/*
1518 * We're handling tstamp=0 as an undefined tstamp, i.e. like when we are
1519 * using ttrace->entry_time for a thread that receives a sys_exit without
1520 * first having received a sys_enter ("poll" issued before tracing session
1521 * starts, lost sys_enter exit due to ring buffer overflow).
1522 */
1523static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp)
1524{
1525 if (tstamp > 0)
1526 return __trace__fprintf_tstamp(trace, tstamp, fp);
1527
1528 return fprintf(fp, " ? ");
1529}
1530
Namhyung Kimf15eb532012-10-05 14:02:16 +09001531static bool done = false;
Arnaldo Carvalho de Meloba209f82013-10-16 11:57:33 -03001532static bool interrupted = false;
Namhyung Kimf15eb532012-10-05 14:02:16 +09001533
Arnaldo Carvalho de Meloba209f82013-10-16 11:57:33 -03001534static void sig_handler(int sig)
Namhyung Kimf15eb532012-10-05 14:02:16 +09001535{
1536 done = true;
Arnaldo Carvalho de Meloba209f82013-10-16 11:57:33 -03001537 interrupted = sig == SIGINT;
Namhyung Kimf15eb532012-10-05 14:02:16 +09001538}
1539
Arnaldo Carvalho de Melo6dcbd212018-08-21 11:40:09 -03001540static size_t trace__fprintf_comm_tid(struct trace *trace, struct thread *thread, FILE *fp)
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001541{
Arnaldo Carvalho de Melo6dcbd212018-08-21 11:40:09 -03001542 size_t printed = 0;
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001543
Arnaldo Carvalho de Melo50c95cb2013-09-12 12:35:21 -03001544 if (trace->multiple_threads) {
1545 if (trace->show_comm)
Frederic Weisbecker1902efe2013-09-11 16:56:44 +02001546 printed += fprintf(fp, "%.14s/", thread__comm_str(thread));
Adrian Hunter38051232013-07-04 16:20:31 +03001547 printed += fprintf(fp, "%d ", thread->tid);
Arnaldo Carvalho de Melo50c95cb2013-09-12 12:35:21 -03001548 }
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001549
1550 return printed;
1551}
1552
Arnaldo Carvalho de Melo6dcbd212018-08-21 11:40:09 -03001553static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread,
1554 u64 duration, bool duration_calculated, u64 tstamp, FILE *fp)
1555{
Arnaldo Carvalho de Melob0361462018-12-14 11:17:19 -03001556 size_t printed = 0;
1557
1558 if (trace->show_tstamp)
1559 printed = trace__fprintf_tstamp(trace, tstamp, fp);
Arnaldo Carvalho de Melo42e4a522018-12-14 10:22:18 -03001560 if (trace->show_duration)
1561 printed += fprintf_duration(duration, duration_calculated, fp);
Arnaldo Carvalho de Melo6dcbd212018-08-21 11:40:09 -03001562 return printed + trace__fprintf_comm_tid(trace, thread, fp);
1563}
1564
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03001565static int trace__process_event(struct trace *trace, struct machine *machine,
Frederic Weisbecker162f0be2013-09-11 16:18:24 +02001566 union perf_event *event, struct perf_sample *sample)
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001567{
1568 int ret = 0;
1569
1570 switch (event->header.type) {
1571 case PERF_RECORD_LOST:
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03001572 color_fprintf(trace->output, PERF_COLOR_RED,
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001573 "LOST %" PRIu64 " events!\n", event->lost.lost);
Frederic Weisbecker162f0be2013-09-11 16:18:24 +02001574 ret = machine__process_lost_event(machine, event, sample);
Arnaldo Carvalho de Melo3ed5ca22016-03-30 16:51:17 -03001575 break;
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001576 default:
Frederic Weisbecker162f0be2013-09-11 16:18:24 +02001577 ret = machine__process_event(machine, event, sample);
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001578 break;
1579 }
1580
1581 return ret;
1582}
1583
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03001584static int trace__tool_process(struct perf_tool *tool,
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001585 union perf_event *event,
Frederic Weisbecker162f0be2013-09-11 16:18:24 +02001586 struct perf_sample *sample,
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001587 struct machine *machine)
1588{
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03001589 struct trace *trace = container_of(tool, struct trace, tool);
Frederic Weisbecker162f0be2013-09-11 16:18:24 +02001590 return trace__process_event(trace, machine, event, sample);
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001591}
1592
Arnaldo Carvalho de Melocaf8a0d2016-05-17 11:56:24 -03001593static char *trace__machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp)
1594{
1595 struct machine *machine = vmachine;
1596
1597 if (machine->kptr_restrict_warned)
1598 return NULL;
1599
1600 if (symbol_conf.kptr_restrict) {
1601 pr_warning("Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n"
Igor Lubashevd06e5fa2019-08-26 21:39:16 -04001602 "Check /proc/sys/kernel/kptr_restrict and /proc/sys/kernel/perf_event_paranoid.\n\n"
Arnaldo Carvalho de Melocaf8a0d2016-05-17 11:56:24 -03001603 "Kernel samples will not be resolved.\n");
1604 machine->kptr_restrict_warned = true;
1605 return NULL;
1606 }
1607
1608 return machine__resolve_kernel_addr(vmachine, addrp, modp);
1609}
1610
Jiri Olsa63503db2019-07-21 13:23:52 +02001611static int trace__symbols_init(struct trace *trace, struct evlist *evlist)
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001612{
Namhyung Kim0a7e6d12014-08-12 15:40:45 +09001613 int err = symbol__init(NULL);
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001614
1615 if (err)
1616 return err;
1617
David Ahern8fb598e2013-09-28 13:13:00 -06001618 trace->host = machine__new_host();
1619 if (trace->host == NULL)
1620 return -ENOMEM;
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001621
Andrei Vagincbd5c172017-11-07 16:22:46 -08001622 err = trace_event__register_resolver(trace->host, trace__machine__resolve_kernel_addr);
1623 if (err < 0)
1624 goto out;
Arnaldo Carvalho de Melo706c3da2015-07-22 16:16:16 -03001625
Arnaldo Carvalho de Meloa33fbd52013-11-11 11:36:12 -03001626 err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target,
Jiri Olsa03617c22019-07-21 13:24:42 +02001627 evlist->core.threads, trace__tool_process, false,
Mark Drayton3fcb10e2018-12-04 12:34:20 -08001628 1);
Andrei Vagincbd5c172017-11-07 16:22:46 -08001629out:
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001630 if (err)
1631 symbol__exit();
1632
1633 return err;
1634}
1635
Andrei Vagin33974a42017-11-07 16:22:45 -08001636static void trace__symbols__exit(struct trace *trace)
1637{
1638 machine__exit(trace->host);
1639 trace->host = NULL;
1640
1641 symbol__exit();
1642}
1643
Arnaldo Carvalho de Melo5e58fcf2017-07-19 14:32:11 -03001644static int syscall__alloc_arg_fmts(struct syscall *sc, int nr_args)
1645{
1646 int idx;
1647
Arnaldo Carvalho de Melo332337d2017-07-19 15:08:14 -03001648 if (nr_args == 6 && sc->fmt && sc->fmt->nr_args != 0)
1649 nr_args = sc->fmt->nr_args;
1650
Arnaldo Carvalho de Melo5e58fcf2017-07-19 14:32:11 -03001651 sc->arg_fmt = calloc(nr_args, sizeof(*sc->arg_fmt));
1652 if (sc->arg_fmt == NULL)
1653 return -1;
1654
1655 for (idx = 0; idx < nr_args; ++idx) {
1656 if (sc->fmt)
1657 sc->arg_fmt[idx] = sc->fmt->arg[idx];
1658 }
1659
1660 sc->nr_args = nr_args;
1661 return 0;
1662}
1663
Arnaldo Carvalho de Melo5d880992019-10-07 15:50:15 -03001664static struct syscall_arg_fmt syscall_arg_fmts__by_name[] = {
Arnaldo Carvalho de Melodf604bf2019-10-15 16:50:13 -03001665 { .name = "msr", .scnprintf = SCA_X86_MSR, .strtoul = STUL_X86_MSR, },
1666 { .name = "vector", .scnprintf = SCA_X86_IRQ_VECTORS, .strtoul = STUL_X86_IRQ_VECTORS, },
Arnaldo Carvalho de Melo5d880992019-10-07 15:50:15 -03001667};
1668
1669static int syscall_arg_fmt__cmp(const void *name, const void *fmtp)
1670{
1671 const struct syscall_arg_fmt *fmt = fmtp;
1672 return strcmp(name, fmt->name);
1673}
1674
1675static struct syscall_arg_fmt *
1676__syscall_arg_fmt__find_by_name(struct syscall_arg_fmt *fmts, const int nmemb, const char *name)
1677{
1678 return bsearch(name, fmts, nmemb, sizeof(struct syscall_arg_fmt), syscall_arg_fmt__cmp);
1679}
1680
1681static struct syscall_arg_fmt *syscall_arg_fmt__find_by_name(const char *name)
1682{
1683 const int nmemb = ARRAY_SIZE(syscall_arg_fmts__by_name);
1684 return __syscall_arg_fmt__find_by_name(syscall_arg_fmts__by_name, nmemb, name);
1685}
1686
Arnaldo Carvalho de Melo8d1d4ff2019-10-03 15:57:42 -03001687static struct tep_format_field *
1688syscall_arg_fmt__init_array(struct syscall_arg_fmt *arg, struct tep_format_field *field)
Arnaldo Carvalho de Melo13d4ff32013-08-23 18:14:48 -03001689{
Arnaldo Carvalho de Melo8d1d4ff2019-10-03 15:57:42 -03001690 struct tep_format_field *last_field = NULL;
1691 int len;
Arnaldo Carvalho de Melo13d4ff32013-08-23 18:14:48 -03001692
Arnaldo Carvalho de Melo8d1d4ff2019-10-03 15:57:42 -03001693 for (; field; field = field->next, ++arg) {
Arnaldo Carvalho de Melo7a983a02018-08-20 17:58:17 -03001694 last_field = field;
1695
Arnaldo Carvalho de Melo8d1d4ff2019-10-03 15:57:42 -03001696 if (arg->scnprintf)
Arnaldo Carvalho de Melo5e58fcf2017-07-19 14:32:11 -03001697 continue;
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001698
Arnaldo Carvalho de Melodea87bf2019-06-05 10:53:06 -03001699 len = strlen(field->name);
1700
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03001701 if (strcmp(field->type, "const char *") == 0 &&
Arnaldo Carvalho de Melodea87bf2019-06-05 10:53:06 -03001702 ((len >= 4 && strcmp(field->name + len - 4, "name") == 0) ||
1703 strstr(field->name, "path") != NULL))
Arnaldo Carvalho de Melo8d1d4ff2019-10-03 15:57:42 -03001704 arg->scnprintf = SCA_FILENAME;
Arnaldo Carvalho de Meloce055392018-12-17 12:21:09 -03001705 else if ((field->flags & TEP_FIELD_IS_POINTER) || strstr(field->name, "addr"))
Arnaldo Carvalho de Melo8d1d4ff2019-10-03 15:57:42 -03001706 arg->scnprintf = SCA_PTR;
Arnaldo Carvalho de Melod1d438a2016-04-06 18:02:41 -03001707 else if (strcmp(field->type, "pid_t") == 0)
Arnaldo Carvalho de Melo8d1d4ff2019-10-03 15:57:42 -03001708 arg->scnprintf = SCA_PID;
Arnaldo Carvalho de Meloba2f22c2016-04-07 12:05:51 -03001709 else if (strcmp(field->type, "umode_t") == 0)
Arnaldo Carvalho de Melo8d1d4ff2019-10-03 15:57:42 -03001710 arg->scnprintf = SCA_MODE_T;
Arnaldo Carvalho de Meloc5e006c2019-10-15 08:26:47 -03001711 else if ((field->flags & TEP_FIELD_IS_ARRAY) && strstr(field->type, "char")) {
Arnaldo Carvalho de Melo95979452019-10-04 14:56:40 -03001712 arg->scnprintf = SCA_CHAR_ARRAY;
1713 arg->nr_entries = field->arraylen;
1714 } else if ((strcmp(field->type, "int") == 0 ||
Arnaldo Carvalho de Melob6565c92016-05-23 12:59:53 -03001715 strcmp(field->type, "unsigned int") == 0 ||
1716 strcmp(field->type, "long") == 0) &&
Arnaldo Carvalho de Melodea87bf2019-06-05 10:53:06 -03001717 len >= 2 && strcmp(field->name + len - 2, "fd") == 0) {
Arnaldo Carvalho de Melob6565c92016-05-23 12:59:53 -03001718 /*
1719 * /sys/kernel/tracing/events/syscalls/sys_enter*
1720 * egrep 'field:.*fd;' .../format|sed -r 's/.*field:([a-z ]+) [a-z_]*fd.+/\1/g'|sort|uniq -c
1721 * 65 int
1722 * 23 unsigned int
1723 * 7 unsigned long
1724 */
Arnaldo Carvalho de Melo8d1d4ff2019-10-03 15:57:42 -03001725 arg->scnprintf = SCA_FD;
Arnaldo Carvalho de Melo5d880992019-10-07 15:50:15 -03001726 } else {
1727 struct syscall_arg_fmt *fmt = syscall_arg_fmt__find_by_name(field->name);
1728
Arnaldo Carvalho de Melo3f41b772019-10-09 16:06:43 -03001729 if (fmt) {
Arnaldo Carvalho de Melo5d880992019-10-07 15:50:15 -03001730 arg->scnprintf = fmt->scnprintf;
Arnaldo Carvalho de Melo3f41b772019-10-09 16:06:43 -03001731 arg->strtoul = fmt->strtoul;
1732 }
Arnaldo Carvalho de Melob6565c92016-05-23 12:59:53 -03001733 }
Arnaldo Carvalho de Melo13d4ff32013-08-23 18:14:48 -03001734 }
1735
Arnaldo Carvalho de Melo8d1d4ff2019-10-03 15:57:42 -03001736 return last_field;
1737}
1738
1739static int syscall__set_arg_fmts(struct syscall *sc)
1740{
1741 struct tep_format_field *last_field = syscall_arg_fmt__init_array(sc->arg_fmt, sc->args);
1742
Arnaldo Carvalho de Melo7a983a02018-08-20 17:58:17 -03001743 if (last_field)
1744 sc->args_size = last_field->offset + last_field->size;
1745
Arnaldo Carvalho de Melo13d4ff32013-08-23 18:14:48 -03001746 return 0;
1747}
1748
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03001749static int trace__read_syscall_info(struct trace *trace, int id)
1750{
1751 char tp_name[128];
1752 struct syscall *sc;
Arnaldo Carvalho de Melofd0db102016-04-04 13:32:20 -03001753 const char *name = syscalltbl__name(trace->sctbl, id);
Arnaldo Carvalho de Melo3a531262012-10-20 12:39:03 -03001754
Arnaldo Carvalho de Melo30a910d2019-07-18 20:19:30 -03001755 if (trace->syscalls.table == NULL) {
Leo Yan3e700082019-08-09 18:47:52 +08001756 trace->syscalls.table = calloc(trace->sctbl->syscalls.max_id + 1, sizeof(*sc));
Arnaldo Carvalho de Melo30a910d2019-07-18 20:19:30 -03001757 if (trace->syscalls.table == NULL)
Arnaldo Carvalho de Melo5d2bd8892019-07-17 19:53:51 -03001758 return -ENOMEM;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03001759 }
1760
1761 sc = trace->syscalls.table + id;
Arnaldo Carvalho de Melob8b10332019-07-17 20:21:37 -03001762 if (sc->nonexistent)
1763 return 0;
Arnaldo Carvalho de Melo2ae3a312013-08-09 12:28:31 -03001764
Arnaldo Carvalho de Melob8b10332019-07-17 20:21:37 -03001765 if (name == NULL) {
1766 sc->nonexistent = true;
1767 return 0;
1768 }
1769
1770 sc->name = name;
Arnaldo Carvalho de Melo3a531262012-10-20 12:39:03 -03001771 sc->fmt = syscall_fmt__find(sc->name);
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03001772
Arnaldo Carvalho de Meloaec19302012-09-27 13:16:00 -03001773 snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name);
Jiri Olsa97978b32013-12-03 14:09:24 +01001774 sc->tp_format = trace_event__tp_format("syscalls", tp_name);
Arnaldo Carvalho de Meloaec19302012-09-27 13:16:00 -03001775
Jiri Olsa8dd2a132015-09-07 10:38:06 +02001776 if (IS_ERR(sc->tp_format) && sc->fmt && sc->fmt->alias) {
Arnaldo Carvalho de Meloaec19302012-09-27 13:16:00 -03001777 snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias);
Jiri Olsa97978b32013-12-03 14:09:24 +01001778 sc->tp_format = trace_event__tp_format("syscalls", tp_name);
Arnaldo Carvalho de Meloaec19302012-09-27 13:16:00 -03001779 }
1780
Arnaldo Carvalho de Melo5e58fcf2017-07-19 14:32:11 -03001781 if (syscall__alloc_arg_fmts(sc, IS_ERR(sc->tp_format) ? 6 : sc->tp_format->format.nr_fields))
Arnaldo Carvalho de Melo5d2bd8892019-07-17 19:53:51 -03001782 return -ENOMEM;
Arnaldo Carvalho de Melo5e58fcf2017-07-19 14:32:11 -03001783
Jiri Olsa8dd2a132015-09-07 10:38:06 +02001784 if (IS_ERR(sc->tp_format))
Arnaldo Carvalho de Melo5d2bd8892019-07-17 19:53:51 -03001785 return PTR_ERR(sc->tp_format);
Arnaldo Carvalho de Melo13d4ff32013-08-23 18:14:48 -03001786
Arnaldo Carvalho de Melof208bd82015-03-20 17:46:53 -03001787 sc->args = sc->tp_format->format.fields;
Taeung Songc42de702016-02-26 22:14:25 +09001788 /*
1789 * We need to check and discard the first variable '__syscall_nr'
1790 * or 'nr' that mean the syscall number. It is needless here.
1791 * So drop '__syscall_nr' or 'nr' field but does not exist on older kernels.
1792 */
1793 if (sc->args && (!strcmp(sc->args->name, "__syscall_nr") || !strcmp(sc->args->name, "nr"))) {
Arnaldo Carvalho de Melof208bd82015-03-20 17:46:53 -03001794 sc->args = sc->args->next;
1795 --sc->nr_args;
1796 }
1797
Arnaldo Carvalho de Melo5089f202014-06-17 14:29:24 -03001798 sc->is_exit = !strcmp(name, "exit_group") || !strcmp(name, "exit");
Arnaldo Carvalho de Melo6a648b52018-08-02 10:30:08 -03001799 sc->is_open = !strcmp(name, "open") || !strcmp(name, "openat");
Arnaldo Carvalho de Melo5089f202014-06-17 14:29:24 -03001800
Arnaldo Carvalho de Melo13d4ff32013-08-23 18:14:48 -03001801 return syscall__set_arg_fmts(sc);
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03001802}
1803
Arnaldo Carvalho de Melo947b8432019-10-03 16:18:22 -03001804static int perf_evsel__init_tp_arg_scnprintf(struct evsel *evsel)
1805{
Arnaldo Carvalho de Melo8b913df2019-10-17 10:39:46 -03001806 struct syscall_arg_fmt *fmt = evsel__syscall_arg_fmt(evsel);
Arnaldo Carvalho de Melo947b8432019-10-03 16:18:22 -03001807
Arnaldo Carvalho de Melo8b913df2019-10-17 10:39:46 -03001808 if (fmt != NULL) {
1809 syscall_arg_fmt__init_array(fmt, evsel->tp_format->format.fields);
Arnaldo Carvalho de Melo947b8432019-10-03 16:18:22 -03001810 return 0;
1811 }
1812
1813 return -ENOMEM;
1814}
1815
Arnaldo Carvalho de Melo83e69b92019-07-15 17:28:25 -03001816static int intcmp(const void *a, const void *b)
1817{
1818 const int *one = a, *another = b;
1819
1820 return *one - *another;
1821}
1822
Arnaldo Carvalho de Melod0cc4392015-06-25 19:32:33 -03001823static int trace__validate_ev_qualifier(struct trace *trace)
1824{
Arnaldo Carvalho de Meloa4066d62019-06-13 17:35:09 -03001825 int err = 0;
Arnaldo Carvalho de Melo04c41bc2019-06-10 15:37:45 -03001826 bool printed_invalid_prefix = false;
Arnaldo Carvalho de Melod0cc4392015-06-25 19:32:33 -03001827 struct str_node *pos;
Arnaldo Carvalho de Melo99f26f82019-06-13 18:17:41 -03001828 size_t nr_used = 0, nr_allocated = strlist__nr_entries(trace->ev_qualifier);
Arnaldo Carvalho de Melod0cc4392015-06-25 19:32:33 -03001829
Arnaldo Carvalho de Melo99f26f82019-06-13 18:17:41 -03001830 trace->ev_qualifier_ids.entries = malloc(nr_allocated *
Arnaldo Carvalho de Melo8b3ce752015-07-02 18:28:11 -03001831 sizeof(trace->ev_qualifier_ids.entries[0]));
1832
1833 if (trace->ev_qualifier_ids.entries == NULL) {
1834 fputs("Error:\tNot enough memory for allocating events qualifier ids\n",
1835 trace->output);
1836 err = -EINVAL;
1837 goto out;
1838 }
1839
Arnaldo Carvalho de Melo602a1f42016-06-23 11:31:20 -03001840 strlist__for_each_entry(pos, trace->ev_qualifier) {
Arnaldo Carvalho de Melod0cc4392015-06-25 19:32:33 -03001841 const char *sc = pos->s;
Arnaldo Carvalho de Melo27702bc2017-08-31 11:50:04 -03001842 int id = syscalltbl__id(trace->sctbl, sc), match_next = -1;
Arnaldo Carvalho de Melod0cc4392015-06-25 19:32:33 -03001843
Arnaldo Carvalho de Melo8b3ce752015-07-02 18:28:11 -03001844 if (id < 0) {
Arnaldo Carvalho de Melo27702bc2017-08-31 11:50:04 -03001845 id = syscalltbl__strglobmatch_first(trace->sctbl, sc, &match_next);
1846 if (id >= 0)
1847 goto matches;
1848
Arnaldo Carvalho de Melo04c41bc2019-06-10 15:37:45 -03001849 if (!printed_invalid_prefix) {
1850 pr_debug("Skipping unknown syscalls: ");
1851 printed_invalid_prefix = true;
Arnaldo Carvalho de Melod0cc4392015-06-25 19:32:33 -03001852 } else {
Arnaldo Carvalho de Melo04c41bc2019-06-10 15:37:45 -03001853 pr_debug(", ");
Arnaldo Carvalho de Melod0cc4392015-06-25 19:32:33 -03001854 }
1855
Arnaldo Carvalho de Melo04c41bc2019-06-10 15:37:45 -03001856 pr_debug("%s", sc);
1857 continue;
Arnaldo Carvalho de Melod0cc4392015-06-25 19:32:33 -03001858 }
Arnaldo Carvalho de Melo27702bc2017-08-31 11:50:04 -03001859matches:
Arnaldo Carvalho de Melo99f26f82019-06-13 18:17:41 -03001860 trace->ev_qualifier_ids.entries[nr_used++] = id;
Arnaldo Carvalho de Melo27702bc2017-08-31 11:50:04 -03001861 if (match_next == -1)
1862 continue;
1863
1864 while (1) {
1865 id = syscalltbl__strglobmatch_next(trace->sctbl, sc, &match_next);
1866 if (id < 0)
1867 break;
Arnaldo Carvalho de Melo99f26f82019-06-13 18:17:41 -03001868 if (nr_allocated == nr_used) {
Arnaldo Carvalho de Melo27702bc2017-08-31 11:50:04 -03001869 void *entries;
1870
1871 nr_allocated += 8;
1872 entries = realloc(trace->ev_qualifier_ids.entries,
1873 nr_allocated * sizeof(trace->ev_qualifier_ids.entries[0]));
1874 if (entries == NULL) {
1875 err = -ENOMEM;
1876 fputs("\nError:\t Not enough memory for parsing\n", trace->output);
1877 goto out_free;
1878 }
1879 trace->ev_qualifier_ids.entries = entries;
1880 }
Arnaldo Carvalho de Melo99f26f82019-06-13 18:17:41 -03001881 trace->ev_qualifier_ids.entries[nr_used++] = id;
Arnaldo Carvalho de Melo27702bc2017-08-31 11:50:04 -03001882 }
Arnaldo Carvalho de Melod0cc4392015-06-25 19:32:33 -03001883 }
1884
Arnaldo Carvalho de Melo99f26f82019-06-13 18:17:41 -03001885 trace->ev_qualifier_ids.nr = nr_used;
Arnaldo Carvalho de Melo83e69b92019-07-15 17:28:25 -03001886 qsort(trace->ev_qualifier_ids.entries, nr_used, sizeof(int), intcmp);
Arnaldo Carvalho de Melo8b3ce752015-07-02 18:28:11 -03001887out:
Arnaldo Carvalho de Melo04c41bc2019-06-10 15:37:45 -03001888 if (printed_invalid_prefix)
1889 pr_debug("\n");
Arnaldo Carvalho de Melod0cc4392015-06-25 19:32:33 -03001890 return err;
Arnaldo Carvalho de Melo04c41bc2019-06-10 15:37:45 -03001891out_free:
1892 zfree(&trace->ev_qualifier_ids.entries);
1893 trace->ev_qualifier_ids.nr = 0;
1894 goto out;
Arnaldo Carvalho de Melod0cc4392015-06-25 19:32:33 -03001895}
1896
Arnaldo Carvalho de Melo3803a222019-07-16 11:27:03 -03001897static __maybe_unused bool trace__syscall_enabled(struct trace *trace, int id)
1898{
1899 bool in_ev_qualifier;
1900
1901 if (trace->ev_qualifier_ids.nr == 0)
1902 return true;
1903
1904 in_ev_qualifier = bsearch(&id, trace->ev_qualifier_ids.entries,
1905 trace->ev_qualifier_ids.nr, sizeof(int), intcmp) != NULL;
1906
1907 if (in_ev_qualifier)
1908 return !trace->not_ev_qualifier;
1909
1910 return trace->not_ev_qualifier;
1911}
1912
David Ahern55d43bca2015-02-19 15:00:22 -05001913/*
1914 * args is to be interpreted as a series of longs but we need to handle
1915 * 8-byte unaligned accesses. args points to raw_data within the event
1916 * and raw_data is guaranteed to be 8-byte unaligned because it is
1917 * preceded by raw_size which is a u32. So we need to copy args to a temp
1918 * variable to read it. Most notably this avoids extended load instructions
1919 * on unaligned addresses
1920 */
Arnaldo Carvalho de Melo325f5092017-07-19 15:02:43 -03001921unsigned long syscall_arg__val(struct syscall_arg *arg, u8 idx)
Arnaldo Carvalho de Melof9f83b32017-07-14 10:13:56 -03001922{
1923 unsigned long val;
Arnaldo Carvalho de Melo325f5092017-07-19 15:02:43 -03001924 unsigned char *p = arg->args + sizeof(unsigned long) * idx;
Arnaldo Carvalho de Melof9f83b32017-07-14 10:13:56 -03001925
1926 memcpy(&val, p, sizeof(val));
1927 return val;
1928}
1929
Arnaldo Carvalho de Meloc51bdfe2017-07-19 15:47:30 -03001930static size_t syscall__scnprintf_name(struct syscall *sc, char *bf, size_t size,
1931 struct syscall_arg *arg)
1932{
1933 if (sc->arg_fmt && sc->arg_fmt[arg->idx].name)
1934 return scnprintf(bf, size, "%s: ", sc->arg_fmt[arg->idx].name);
1935
1936 return scnprintf(bf, size, "arg%d: ", arg->idx);
1937}
1938
Arnaldo Carvalho de Melo496fd342018-10-25 16:09:47 -03001939/*
1940 * Check if the value is in fact zero, i.e. mask whatever needs masking, such
1941 * as mount 'flags' argument that needs ignoring some magic flag, see comment
1942 * in tools/perf/trace/beauty/mount_flags.c
1943 */
Arnaldo Carvalho de Melo3e0c9b22019-10-04 11:30:41 -03001944static unsigned long syscall_arg_fmt__mask_val(struct syscall_arg_fmt *fmt, struct syscall_arg *arg, unsigned long val)
Arnaldo Carvalho de Melo496fd342018-10-25 16:09:47 -03001945{
Arnaldo Carvalho de Melo3e0c9b22019-10-04 11:30:41 -03001946 if (fmt && fmt->mask_val)
1947 return fmt->mask_val(arg, val);
Arnaldo Carvalho de Melo496fd342018-10-25 16:09:47 -03001948
1949 return val;
1950}
1951
Arnaldo Carvalho de Melo3e0c9b22019-10-04 11:30:41 -03001952static size_t syscall_arg_fmt__scnprintf_val(struct syscall_arg_fmt *fmt, char *bf, size_t size,
1953 struct syscall_arg *arg, unsigned long val)
Arnaldo Carvalho de Melod032d792017-07-19 14:36:13 -03001954{
Arnaldo Carvalho de Melo3e0c9b22019-10-04 11:30:41 -03001955 if (fmt && fmt->scnprintf) {
Arnaldo Carvalho de Melod032d792017-07-19 14:36:13 -03001956 arg->val = val;
Arnaldo Carvalho de Melo3e0c9b22019-10-04 11:30:41 -03001957 if (fmt->parm)
1958 arg->parm = fmt->parm;
1959 return fmt->scnprintf(bf, size, arg);
Arnaldo Carvalho de Melod032d792017-07-19 14:36:13 -03001960 }
1961 return scnprintf(bf, size, "%ld", val);
1962}
1963
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03001964static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size,
Arnaldo Carvalho de Melo7a983a02018-08-20 17:58:17 -03001965 unsigned char *args, void *augmented_args, int augmented_args_size,
1966 struct trace *trace, struct thread *thread)
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03001967{
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03001968 size_t printed = 0;
David Ahern55d43bca2015-02-19 15:00:22 -05001969 unsigned long val;
Arnaldo Carvalho de Melod032d792017-07-19 14:36:13 -03001970 u8 bit = 1;
1971 struct syscall_arg arg = {
1972 .args = args,
Arnaldo Carvalho de Melo7a983a02018-08-20 17:58:17 -03001973 .augmented = {
1974 .size = augmented_args_size,
1975 .args = augmented_args,
1976 },
Arnaldo Carvalho de Melod032d792017-07-19 14:36:13 -03001977 .idx = 0,
1978 .mask = 0,
1979 .trace = trace,
1980 .thread = thread,
Arnaldo Carvalho de Meloc65c83f2018-12-14 17:06:47 -03001981 .show_string_prefix = trace->show_string_prefix,
Arnaldo Carvalho de Melod032d792017-07-19 14:36:13 -03001982 };
Arnaldo Carvalho de Melo84486ca2017-07-14 11:35:03 -03001983 struct thread_trace *ttrace = thread__priv(thread);
1984
1985 /*
1986 * Things like fcntl will set this in its 'cmd' formatter to pick the
1987 * right formatter for the return value (an fd? file flags?), which is
1988 * not needed for syscalls that always return a given type, say an fd.
1989 */
1990 ttrace->ret_scnprintf = NULL;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03001991
Arnaldo Carvalho de Melof208bd82015-03-20 17:46:53 -03001992 if (sc->args != NULL) {
Tzvetomir Stoyanov (VMware)2c92f982018-09-19 14:56:45 -04001993 struct tep_format_field *field;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03001994
Arnaldo Carvalho de Melof208bd82015-03-20 17:46:53 -03001995 for (field = sc->args; field;
Arnaldo Carvalho de Melo01533e92013-09-03 12:20:12 -03001996 field = field->next, ++arg.idx, bit <<= 1) {
1997 if (arg.mask & bit)
Arnaldo Carvalho de Melo6e7eeb52013-09-02 10:39:21 -03001998 continue;
David Ahern55d43bca2015-02-19 15:00:22 -05001999
Arnaldo Carvalho de Melo888ca8542019-10-04 14:52:30 -03002000 arg.fmt = &sc->arg_fmt[arg.idx];
Arnaldo Carvalho de Melof9f83b32017-07-14 10:13:56 -03002001 val = syscall_arg__val(&arg, arg.idx);
Arnaldo Carvalho de Melo496fd342018-10-25 16:09:47 -03002002 /*
2003 * Some syscall args need some mask, most don't and
2004 * return val untouched.
2005 */
Arnaldo Carvalho de Melo3e0c9b22019-10-04 11:30:41 -03002006 val = syscall_arg_fmt__mask_val(&sc->arg_fmt[arg.idx], &arg, val);
David Ahern55d43bca2015-02-19 15:00:22 -05002007
Arnaldo Carvalho de Melo4aa58232013-09-20 12:19:41 -03002008 /*
2009 * Suppress this argument if its value is zero and
2010 * and we don't have a string associated in an
2011 * strarray for it.
2012 */
David Ahern55d43bca2015-02-19 15:00:22 -05002013 if (val == 0 &&
Arnaldo Carvalho de Meloe7c634f2018-12-14 10:12:09 -03002014 !trace->show_zeros &&
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03002015 !(sc->arg_fmt &&
Arnaldo Carvalho de Melod47737d2017-07-17 15:59:03 -03002016 (sc->arg_fmt[arg.idx].show_zero ||
2017 sc->arg_fmt[arg.idx].scnprintf == SCA_STRARRAY ||
Arnaldo Carvalho de Melo82d4a112017-07-17 15:22:47 -03002018 sc->arg_fmt[arg.idx].scnprintf == SCA_STRARRAYS) &&
2019 sc->arg_fmt[arg.idx].parm))
Arnaldo Carvalho de Melo22ae5cf12013-09-12 11:27:34 -03002020 continue;
2021
Arnaldo Carvalho de Melo9d6dc172018-12-14 11:32:02 -03002022 printed += scnprintf(bf + printed, size - printed, "%s", printed ? ", " : "");
2023
2024 if (trace->show_arg_names)
2025 printed += scnprintf(bf + printed, size - printed, "%s: ", field->name);
2026
Arnaldo Carvalho de Melo3e0c9b22019-10-04 11:30:41 -03002027 printed += syscall_arg_fmt__scnprintf_val(&sc->arg_fmt[arg.idx],
2028 bf + printed, size - printed, &arg, val);
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03002029 }
Arnaldo Carvalho de Melo4c4d6e52016-05-05 23:38:05 -03002030 } else if (IS_ERR(sc->tp_format)) {
2031 /*
2032 * If we managed to read the tracepoint /format file, then we
2033 * may end up not having any args, like with gettid(), so only
2034 * print the raw args when we didn't manage to read it.
2035 */
Arnaldo Carvalho de Melo332337d2017-07-19 15:08:14 -03002036 while (arg.idx < sc->nr_args) {
Arnaldo Carvalho de Melod032d792017-07-19 14:36:13 -03002037 if (arg.mask & bit)
2038 goto next_arg;
2039 val = syscall_arg__val(&arg, arg.idx);
Arnaldo Carvalho de Meloc51bdfe2017-07-19 15:47:30 -03002040 if (printed)
2041 printed += scnprintf(bf + printed, size - printed, ", ");
2042 printed += syscall__scnprintf_name(sc, bf + printed, size - printed, &arg);
Arnaldo Carvalho de Melo3e0c9b22019-10-04 11:30:41 -03002043 printed += syscall_arg_fmt__scnprintf_val(&sc->arg_fmt[arg.idx], bf + printed, size - printed, &arg, val);
Arnaldo Carvalho de Melod032d792017-07-19 14:36:13 -03002044next_arg:
2045 ++arg.idx;
2046 bit <<= 1;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03002047 }
2048 }
2049
2050 return printed;
2051}
2052
Jiri Olsa32dcd022019-07-21 13:23:51 +02002053typedef int (*tracepoint_handler)(struct trace *trace, struct evsel *evsel,
Stanislav Fomichev0c82adc2014-06-26 20:14:24 +04002054 union perf_event *event,
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002055 struct perf_sample *sample);
2056
2057static struct syscall *trace__syscall_info(struct trace *trace,
Jiri Olsa32dcd022019-07-21 13:23:51 +02002058 struct evsel *evsel, int id)
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002059{
Arnaldo Carvalho de Melo5d2bd8892019-07-17 19:53:51 -03002060 int err = 0;
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002061
2062 if (id < 0) {
Arnaldo Carvalho de Meloadaa18b2013-08-22 17:55:25 -03002063
2064 /*
2065 * XXX: Noticed on x86_64, reproduced as far back as 3.0.36, haven't tried
2066 * before that, leaving at a higher verbosity level till that is
2067 * explained. Reproduced with plain ftrace with:
2068 *
2069 * echo 1 > /t/events/raw_syscalls/sys_exit/enable
2070 * grep "NR -1 " /t/trace_pipe
2071 *
2072 * After generating some load on the machine.
2073 */
2074 if (verbose > 1) {
2075 static u64 n;
2076 fprintf(trace->output, "Invalid syscall %d id, skipping (%s, %" PRIu64 ") ...\n",
2077 id, perf_evsel__name(evsel), ++n);
2078 }
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002079 return NULL;
2080 }
2081
Arnaldo Carvalho de Melob8b10332019-07-17 20:21:37 -03002082 err = -EINVAL;
2083
Arnaldo Carvalho de Melo30a910d2019-07-18 20:19:30 -03002084 if (id > trace->sctbl->syscalls.max_id)
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002085 goto out_cant_read;
2086
Arnaldo Carvalho de Melo30a910d2019-07-18 20:19:30 -03002087 if ((trace->syscalls.table == NULL || trace->syscalls.table[id].name == NULL) &&
2088 (err = trace__read_syscall_info(trace, id)) != 0)
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002089 goto out_cant_read;
2090
Arnaldo Carvalho de Melob8b10332019-07-17 20:21:37 -03002091 if (trace->syscalls.table[id].name == NULL) {
2092 if (trace->syscalls.table[id].nonexistent)
2093 return NULL;
2094 goto out_cant_read;
2095 }
2096
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002097 return &trace->syscalls.table[id];
2098
2099out_cant_read:
Namhyung Kimbb963e12017-02-17 17:17:38 +09002100 if (verbose > 0) {
Arnaldo Carvalho de Melo5d2bd8892019-07-17 19:53:51 -03002101 char sbuf[STRERR_BUFSIZE];
2102 fprintf(trace->output, "Problems reading syscall %d: %d (%s)", id, -err, str_error_r(-err, sbuf, sizeof(sbuf)));
Arnaldo Carvalho de Melo30a910d2019-07-18 20:19:30 -03002103 if (id <= trace->sctbl->syscalls.max_id && trace->syscalls.table[id].name != NULL)
Arnaldo Carvalho de Melo7c304ee02013-08-22 16:49:54 -03002104 fprintf(trace->output, "(%s)", trace->syscalls.table[id].name);
2105 fputs(" information\n", trace->output);
2106 }
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002107 return NULL;
2108}
2109
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03002110struct syscall_stats {
2111 struct stats stats;
2112 u64 nr_failures;
Arnaldo Carvalho de Melob88b14d2019-10-14 15:32:40 -03002113 int max_errno;
2114 u32 *errnos;
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03002115};
2116
Arnaldo Carvalho de Melob88b14d2019-10-14 15:32:40 -03002117static void thread__update_stats(struct thread *thread, struct thread_trace *ttrace,
2118 int id, struct perf_sample *sample, long err, bool errno_summary)
David Ahernbf2575c2013-10-08 21:26:53 -06002119{
2120 struct int_node *inode;
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03002121 struct syscall_stats *stats;
David Ahernbf2575c2013-10-08 21:26:53 -06002122 u64 duration = 0;
2123
2124 inode = intlist__findnew(ttrace->syscall_stats, id);
2125 if (inode == NULL)
2126 return;
2127
2128 stats = inode->priv;
2129 if (stats == NULL) {
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03002130 stats = malloc(sizeof(*stats));
David Ahernbf2575c2013-10-08 21:26:53 -06002131 if (stats == NULL)
2132 return;
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03002133
2134 stats->nr_failures = 0;
Arnaldo Carvalho de Melob88b14d2019-10-14 15:32:40 -03002135 stats->max_errno = 0;
2136 stats->errnos = NULL;
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03002137 init_stats(&stats->stats);
David Ahernbf2575c2013-10-08 21:26:53 -06002138 inode->priv = stats;
2139 }
2140
2141 if (ttrace->entry_time && sample->time > ttrace->entry_time)
2142 duration = sample->time - ttrace->entry_time;
2143
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03002144 update_stats(&stats->stats, duration);
2145
Arnaldo Carvalho de Melob88b14d2019-10-14 15:32:40 -03002146 if (err < 0) {
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03002147 ++stats->nr_failures;
Arnaldo Carvalho de Melob88b14d2019-10-14 15:32:40 -03002148
2149 if (!errno_summary)
2150 return;
2151
2152 err = -err;
2153 if (err > stats->max_errno) {
2154 u32 *new_errnos = realloc(stats->errnos, err * sizeof(u32));
2155
2156 if (new_errnos) {
2157 memset(new_errnos + stats->max_errno, 0, (err - stats->max_errno) * sizeof(u32));
2158 } else {
2159 pr_debug("Not enough memory for errno stats for thread \"%s\"(%d/%d), results will be incomplete\n",
2160 thread__comm_str(thread), thread->pid_, thread->tid);
2161 return;
2162 }
2163
2164 stats->errnos = new_errnos;
2165 stats->max_errno = err;
2166 }
2167
2168 ++stats->errnos[err - 1];
2169 }
David Ahernbf2575c2013-10-08 21:26:53 -06002170}
2171
Arnaldo Carvalho de Melo522283f2018-01-22 11:42:11 -03002172static int trace__printf_interrupted_entry(struct trace *trace)
Arnaldo Carvalho de Meloe5966632015-02-13 13:22:21 -03002173{
2174 struct thread_trace *ttrace;
Arnaldo Carvalho de Meloe5966632015-02-13 13:22:21 -03002175 size_t printed;
Arnaldo Carvalho de Melo172bf022019-01-07 16:24:27 -03002176 int len;
Arnaldo Carvalho de Meloe5966632015-02-13 13:22:21 -03002177
Arnaldo Carvalho de Melo0a6545b2018-03-29 12:22:59 -03002178 if (trace->failure_only || trace->current == NULL)
Arnaldo Carvalho de Meloe5966632015-02-13 13:22:21 -03002179 return 0;
2180
2181 ttrace = thread__priv(trace->current);
2182
2183 if (!ttrace->entry_pending)
2184 return 0;
2185
Arnaldo Carvalho de Melo522283f2018-01-22 11:42:11 -03002186 printed = trace__fprintf_entry_head(trace, trace->current, 0, false, ttrace->entry_time, trace->output);
Arnaldo Carvalho de Melo172bf022019-01-07 16:24:27 -03002187 printed += len = fprintf(trace->output, "%s)", ttrace->entry_str);
Arnaldo Carvalho de Meloe5966632015-02-13 13:22:21 -03002188
Arnaldo Carvalho de Melo172bf022019-01-07 16:24:27 -03002189 if (len < trace->args_alignment - 4)
2190 printed += fprintf(trace->output, "%-*s", trace->args_alignment - 4 - len, " ");
2191
2192 printed += fprintf(trace->output, " ...\n");
2193
2194 ttrace->entry_pending = false;
Arnaldo Carvalho de Melo5067a8c2018-10-18 16:38:27 -03002195 ++trace->nr_events_printed;
2196
Arnaldo Carvalho de Meloe5966632015-02-13 13:22:21 -03002197 return printed;
2198}
2199
Jiri Olsa32dcd022019-07-21 13:23:51 +02002200static int trace__fprintf_sample(struct trace *trace, struct evsel *evsel,
Arnaldo Carvalho de Melo591421e2018-01-22 11:38:54 -03002201 struct perf_sample *sample, struct thread *thread)
2202{
2203 int printed = 0;
2204
2205 if (trace->print_sample) {
2206 double ts = (double)sample->time / NSEC_PER_MSEC;
2207
2208 printed += fprintf(trace->output, "%22s %10.3f %s %d/%d [%d]\n",
2209 perf_evsel__name(evsel), ts,
2210 thread__comm_str(thread),
2211 sample->pid, sample->tid, sample->cpu);
2212 }
2213
2214 return printed;
2215}
2216
Arnaldo Carvalho de Melob9b6a2e2018-12-19 18:54:36 -03002217static void *syscall__augmented_args(struct syscall *sc, struct perf_sample *sample, int *augmented_args_size, int raw_augmented_args_size)
Arnaldo Carvalho de Melo8a041f82018-09-03 16:07:53 -03002218{
2219 void *augmented_args = NULL;
Arnaldo Carvalho de Melocd26ea62018-11-03 08:19:56 -03002220 /*
2221 * For now with BPF raw_augmented we hook into raw_syscalls:sys_enter
Arnaldo Carvalho de Melob9b6a2e2018-12-19 18:54:36 -03002222 * and there we get all 6 syscall args plus the tracepoint common fields
2223 * that gets calculated at the start and the syscall_nr (another long).
2224 * So we check if that is the case and if so don't look after the
2225 * sc->args_size but always after the full raw_syscalls:sys_enter payload,
2226 * which is fixed.
Arnaldo Carvalho de Melocd26ea62018-11-03 08:19:56 -03002227 *
2228 * We'll revisit this later to pass s->args_size to the BPF augmenter
2229 * (now tools/perf/examples/bpf/augmented_raw_syscalls.c, so that it
2230 * copies only what we need for each syscall, like what happens when we
2231 * use syscalls:sys_enter_NAME, so that we reduce the kernel/userspace
2232 * traffic to just what is needed for each syscall.
2233 */
Arnaldo Carvalho de Melob9b6a2e2018-12-19 18:54:36 -03002234 int args_size = raw_augmented_args_size ?: sc->args_size;
Arnaldo Carvalho de Melo8a041f82018-09-03 16:07:53 -03002235
Arnaldo Carvalho de Melocd26ea62018-11-03 08:19:56 -03002236 *augmented_args_size = sample->raw_size - args_size;
Arnaldo Carvalho de Melo8a041f82018-09-03 16:07:53 -03002237 if (*augmented_args_size > 0)
Arnaldo Carvalho de Melocd26ea62018-11-03 08:19:56 -03002238 augmented_args = sample->raw_data + args_size;
Arnaldo Carvalho de Melo8a041f82018-09-03 16:07:53 -03002239
2240 return augmented_args;
2241}
2242
Jiri Olsa32dcd022019-07-21 13:23:51 +02002243static int trace__sys_enter(struct trace *trace, struct evsel *evsel,
Stanislav Fomichev0c82adc2014-06-26 20:14:24 +04002244 union perf_event *event __maybe_unused,
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002245 struct perf_sample *sample)
2246{
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03002247 char *msg;
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002248 void *args;
Arnaldo Carvalho de Melo4b8a2402018-12-17 11:48:46 -03002249 int printed = 0;
Arnaldo Carvalho de Melo2ae3a312013-08-09 12:28:31 -03002250 struct thread *thread;
Arnaldo Carvalho de Melob91fc392015-04-06 20:43:22 -03002251 int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1;
Arnaldo Carvalho de Melodb2da3f2018-09-03 16:24:09 -03002252 int augmented_args_size = 0;
2253 void *augmented_args = NULL;
David Ahernbf2575c2013-10-08 21:26:53 -06002254 struct syscall *sc = trace__syscall_info(trace, evsel, id);
Arnaldo Carvalho de Melo2ae3a312013-08-09 12:28:31 -03002255 struct thread_trace *ttrace;
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002256
Arnaldo Carvalho de Melo2ae3a312013-08-09 12:28:31 -03002257 if (sc == NULL)
2258 return -1;
2259
David Ahern8fb598e2013-09-28 13:13:00 -06002260 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03002261 ttrace = thread__trace(thread, trace->output);
Arnaldo Carvalho de Melo2ae3a312013-08-09 12:28:31 -03002262 if (ttrace == NULL)
Arnaldo Carvalho de Melob91fc392015-04-06 20:43:22 -03002263 goto out_put;
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002264
Arnaldo Carvalho de Melo591421e2018-01-22 11:38:54 -03002265 trace__fprintf_sample(trace, evsel, sample, thread);
2266
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -03002267 args = perf_evsel__sc_tp_ptr(evsel, args, sample);
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03002268
2269 if (ttrace->entry_str == NULL) {
Arnaldo Carvalho de Meloe4d44e82015-08-04 22:17:29 -03002270 ttrace->entry_str = malloc(trace__entry_str_size);
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03002271 if (!ttrace->entry_str)
Arnaldo Carvalho de Melob91fc392015-04-06 20:43:22 -03002272 goto out_put;
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03002273 }
2274
Arnaldo Carvalho de Melo5cf9c842016-04-15 11:10:31 -03002275 if (!(trace->duration_filter || trace->summary_only || trace->min_stack))
Arnaldo Carvalho de Melo522283f2018-01-22 11:42:11 -03002276 trace__printf_interrupted_entry(trace);
Arnaldo Carvalho de Melodb2da3f2018-09-03 16:24:09 -03002277 /*
2278 * If this is raw_syscalls.sys_enter, then it always comes with the 6 possible
2279 * arguments, even if the syscall being handled, say "openat", uses only 4 arguments
2280 * this breaks syscall__augmented_args() check for augmented args, as we calculate
2281 * syscall->args_size using each syscalls:sys_enter_NAME tracefs format file,
2282 * so when handling, say the openat syscall, we end up getting 6 args for the
2283 * raw_syscalls:sys_enter event, when we expected just 4, we end up mistakenly
2284 * thinking that the extra 2 u64 args are the augmented filename, so just check
2285 * here and avoid using augmented syscalls when the evsel is the raw_syscalls one.
2286 */
2287 if (evsel != trace->syscalls.events.sys_enter)
Arnaldo Carvalho de Melob9b6a2e2018-12-19 18:54:36 -03002288 augmented_args = syscall__augmented_args(sc, sample, &augmented_args_size, trace->raw_augmented_syscalls_args_size);
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03002289 ttrace->entry_time = sample->time;
2290 msg = ttrace->entry_str;
Arnaldo Carvalho de Meloe4d44e82015-08-04 22:17:29 -03002291 printed += scnprintf(msg + printed, trace__entry_str_size - printed, "%s(", sc->name);
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03002292
Arnaldo Carvalho de Meloe4d44e82015-08-04 22:17:29 -03002293 printed += syscall__scnprintf_args(sc, msg + printed, trace__entry_str_size - printed,
Arnaldo Carvalho de Melodb2da3f2018-09-03 16:24:09 -03002294 args, augmented_args, augmented_args_size, trace, thread);
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03002295
Arnaldo Carvalho de Melo5089f202014-06-17 14:29:24 -03002296 if (sc->is_exit) {
Arnaldo Carvalho de Melo0a6545b2018-03-29 12:22:59 -03002297 if (!(trace->duration_filter || trace->summary_only || trace->failure_only || trace->min_stack)) {
Arnaldo Carvalho de Melo4b8a2402018-12-17 11:48:46 -03002298 int alignment = 0;
2299
Arnaldo Carvalho de Melofd2b2972017-03-29 16:37:51 -03002300 trace__fprintf_entry_head(trace, thread, 0, false, ttrace->entry_time, trace->output);
Arnaldo Carvalho de Melo4b8a2402018-12-17 11:48:46 -03002301 printed = fprintf(trace->output, "%s)", ttrace->entry_str);
2302 if (trace->args_alignment > printed)
2303 alignment = trace->args_alignment - printed;
2304 fprintf(trace->output, "%*s= ?\n", alignment, " ");
Arnaldo Carvalho de Meloae9ed032012-10-08 09:56:00 -03002305 }
Arnaldo Carvalho de Melo7f4f8002015-08-14 13:16:27 -03002306 } else {
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03002307 ttrace->entry_pending = true;
Arnaldo Carvalho de Melo7f4f8002015-08-14 13:16:27 -03002308 /* See trace__vfs_getname & trace__sys_exit */
2309 ttrace->filename.pending_open = false;
2310 }
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002311
Arnaldo Carvalho de Melof3b623b2015-03-02 22:21:35 -03002312 if (trace->current != thread) {
2313 thread__put(trace->current);
2314 trace->current = thread__get(thread);
2315 }
Arnaldo Carvalho de Melob91fc392015-04-06 20:43:22 -03002316 err = 0;
2317out_put:
2318 thread__put(thread);
2319 return err;
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002320}
2321
Jiri Olsa32dcd022019-07-21 13:23:51 +02002322static int trace__fprintf_sys_enter(struct trace *trace, struct evsel *evsel,
Arnaldo Carvalho de Meloa98392b2018-08-02 14:05:09 -03002323 struct perf_sample *sample)
2324{
Arnaldo Carvalho de Meloa98392b2018-08-02 14:05:09 -03002325 struct thread_trace *ttrace;
2326 struct thread *thread;
Arnaldo Carvalho de Melof3acd882018-08-02 15:11:58 -03002327 int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1;
2328 struct syscall *sc = trace__syscall_info(trace, evsel, id);
Arnaldo Carvalho de Meloa98392b2018-08-02 14:05:09 -03002329 char msg[1024];
Arnaldo Carvalho de Melo7a983a02018-08-20 17:58:17 -03002330 void *args, *augmented_args = NULL;
2331 int augmented_args_size;
Arnaldo Carvalho de Meloa98392b2018-08-02 14:05:09 -03002332
Arnaldo Carvalho de Meloa98392b2018-08-02 14:05:09 -03002333 if (sc == NULL)
2334 return -1;
2335
2336 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
2337 ttrace = thread__trace(thread, trace->output);
2338 /*
2339 * We need to get ttrace just to make sure it is there when syscall__scnprintf_args()
2340 * and the rest of the beautifiers accessing it via struct syscall_arg touches it.
2341 */
2342 if (ttrace == NULL)
2343 goto out_put;
2344
Arnaldo Carvalho de Melof3acd882018-08-02 15:11:58 -03002345 args = perf_evsel__sc_tp_ptr(evsel, args, sample);
Arnaldo Carvalho de Melob9b6a2e2018-12-19 18:54:36 -03002346 augmented_args = syscall__augmented_args(sc, sample, &augmented_args_size, trace->raw_augmented_syscalls_args_size);
Arnaldo Carvalho de Melo7a983a02018-08-20 17:58:17 -03002347 syscall__scnprintf_args(sc, msg, sizeof(msg), args, augmented_args, augmented_args_size, trace, thread);
Arnaldo Carvalho de Meloa98392b2018-08-02 14:05:09 -03002348 fprintf(trace->output, "%s", msg);
2349 err = 0;
2350out_put:
2351 thread__put(thread);
2352 return err;
2353}
2354
Jiri Olsa32dcd022019-07-21 13:23:51 +02002355static int trace__resolve_callchain(struct trace *trace, struct evsel *evsel,
Arnaldo Carvalho de Melo5cf9c842016-04-15 11:10:31 -03002356 struct perf_sample *sample,
2357 struct callchain_cursor *cursor)
Arnaldo Carvalho de Melo202ff962016-04-12 10:11:07 -03002358{
2359 struct addr_location al;
Jiri Olsa1fc632c2019-07-21 13:24:29 +02002360 int max_stack = evsel->core.attr.sample_max_stack ?
2361 evsel->core.attr.sample_max_stack :
Ravi Bangoria3a9e9a42018-01-30 11:00:53 +05302362 trace->max_stack;
Arnaldo Carvalho de Melo4291bf52018-10-20 09:18:50 -03002363 int err;
Arnaldo Carvalho de Melo5cf9c842016-04-15 11:10:31 -03002364
Arnaldo Carvalho de Melo4291bf52018-10-20 09:18:50 -03002365 if (machine__resolve(trace->host, &al, sample) < 0)
Arnaldo Carvalho de Melo5cf9c842016-04-15 11:10:31 -03002366 return -1;
2367
Arnaldo Carvalho de Melo4291bf52018-10-20 09:18:50 -03002368 err = thread__resolve_callchain(al.thread, cursor, evsel, sample, NULL, NULL, max_stack);
2369 addr_location__put(&al);
2370 return err;
Arnaldo Carvalho de Melo5cf9c842016-04-15 11:10:31 -03002371}
2372
2373static int trace__fprintf_callchain(struct trace *trace, struct perf_sample *sample)
2374{
Arnaldo Carvalho de Melo202ff962016-04-12 10:11:07 -03002375 /* TODO: user-configurable print_opts */
Arnaldo Carvalho de Meloe20ab862016-04-12 15:16:15 -03002376 const unsigned int print_opts = EVSEL__PRINT_SYM |
2377 EVSEL__PRINT_DSO |
2378 EVSEL__PRINT_UNKNOWN_AS_ADDR;
Arnaldo Carvalho de Melo202ff962016-04-12 10:11:07 -03002379
Arnaldo Carvalho de Melo9620bc362019-09-25 15:06:59 -03002380 return sample__fprintf_callchain(sample, 38, print_opts, &callchain_cursor, symbol_conf.bt_stop_list, trace->output);
Arnaldo Carvalho de Melo202ff962016-04-12 10:11:07 -03002381}
2382
Jiri Olsa32dcd022019-07-21 13:23:51 +02002383static const char *errno_to_name(struct evsel *evsel, int err)
Hendrik Brueckner092bd3c2018-01-19 09:56:16 +01002384{
2385 struct perf_env *env = perf_evsel__env(evsel);
2386 const char *arch_name = perf_env__arch(env);
2387
2388 return arch_syscalls__strerrno(arch_name, err);
2389}
2390
Jiri Olsa32dcd022019-07-21 13:23:51 +02002391static int trace__sys_exit(struct trace *trace, struct evsel *evsel,
Stanislav Fomichev0c82adc2014-06-26 20:14:24 +04002392 union perf_event *event __maybe_unused,
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002393 struct perf_sample *sample)
2394{
Chang Hyun Park2c82c3a2014-09-26 21:54:01 +09002395 long ret;
Arnaldo Carvalho de Melo60c907a2012-10-24 17:24:47 -02002396 u64 duration = 0;
Arnaldo Carvalho de Melofd2b2972017-03-29 16:37:51 -03002397 bool duration_calculated = false;
Arnaldo Carvalho de Melo2ae3a312013-08-09 12:28:31 -03002398 struct thread *thread;
Arnaldo Carvalho de Melo4b8a2402018-12-17 11:48:46 -03002399 int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1, callchain_ret = 0, printed = 0;
2400 int alignment = trace->args_alignment;
David Ahernbf2575c2013-10-08 21:26:53 -06002401 struct syscall *sc = trace__syscall_info(trace, evsel, id);
Arnaldo Carvalho de Melo2ae3a312013-08-09 12:28:31 -03002402 struct thread_trace *ttrace;
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002403
Arnaldo Carvalho de Melo2ae3a312013-08-09 12:28:31 -03002404 if (sc == NULL)
2405 return -1;
2406
David Ahern8fb598e2013-09-28 13:13:00 -06002407 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03002408 ttrace = thread__trace(thread, trace->output);
Arnaldo Carvalho de Melo2ae3a312013-08-09 12:28:31 -03002409 if (ttrace == NULL)
Arnaldo Carvalho de Melob91fc392015-04-06 20:43:22 -03002410 goto out_put;
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002411
Arnaldo Carvalho de Melo591421e2018-01-22 11:38:54 -03002412 trace__fprintf_sample(trace, evsel, sample, thread);
2413
Arnaldo Carvalho de Melo77170982013-11-06 16:35:57 -03002414 ret = perf_evsel__sc_tp_uint(evsel, ret, sample);
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002415
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03002416 if (trace->summary)
Arnaldo Carvalho de Melob88b14d2019-10-14 15:32:40 -03002417 thread__update_stats(thread, ttrace, id, sample, ret, trace->errno_summary);
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03002418
Arnaldo Carvalho de Melo79d725c2019-07-16 16:56:49 -03002419 if (!trace->fd_path_disabled && sc->is_open && ret >= 0 && ttrace->filename.pending_open) {
Arnaldo Carvalho de Melo7f4f8002015-08-14 13:16:27 -03002420 trace__set_fd_pathname(thread, ret, ttrace->filename.name);
2421 ttrace->filename.pending_open = false;
Arnaldo Carvalho de Meloc5227392013-09-27 18:06:19 -03002422 ++trace->stats.vfs_getname;
2423 }
2424
Arnaldo Carvalho de Meloae9ed032012-10-08 09:56:00 -03002425 if (ttrace->entry_time) {
Arnaldo Carvalho de Melo60c907a2012-10-24 17:24:47 -02002426 duration = sample->time - ttrace->entry_time;
Arnaldo Carvalho de Meloae9ed032012-10-08 09:56:00 -03002427 if (trace__filter_duration(trace, duration))
2428 goto out;
Arnaldo Carvalho de Melofd2b2972017-03-29 16:37:51 -03002429 duration_calculated = true;
Arnaldo Carvalho de Meloae9ed032012-10-08 09:56:00 -03002430 } else if (trace->duration_filter)
2431 goto out;
Arnaldo Carvalho de Melo60c907a2012-10-24 17:24:47 -02002432
Arnaldo Carvalho de Melo5cf9c842016-04-15 11:10:31 -03002433 if (sample->callchain) {
2434 callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor);
2435 if (callchain_ret == 0) {
2436 if (callchain_cursor.nr < trace->min_stack)
2437 goto out;
2438 callchain_ret = 1;
2439 }
2440 }
2441
Arnaldo Carvalho de Melo0a6545b2018-03-29 12:22:59 -03002442 if (trace->summary_only || (ret >= 0 && trace->failure_only))
David Ahernfd2eaba2013-11-12 09:31:15 -07002443 goto out;
2444
Arnaldo Carvalho de Melofd2b2972017-03-29 16:37:51 -03002445 trace__fprintf_entry_head(trace, thread, duration, duration_calculated, ttrace->entry_time, trace->output);
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03002446
2447 if (ttrace->entry_pending) {
Arnaldo Carvalho de Melo4b8a2402018-12-17 11:48:46 -03002448 printed = fprintf(trace->output, "%s", ttrace->entry_str);
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03002449 } else {
Arnaldo Carvalho de Meloac6e0222019-01-07 16:54:38 -03002450 printed += fprintf(trace->output, " ... [");
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03002451 color_fprintf(trace->output, PERF_COLOR_YELLOW, "continued");
Arnaldo Carvalho de Meloac6e0222019-01-07 16:54:38 -03002452 printed += 9;
2453 printed += fprintf(trace->output, "]: %s()", sc->name);
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03002454 }
2455
Arnaldo Carvalho de Melo4b8a2402018-12-17 11:48:46 -03002456 printed++; /* the closing ')' */
2457
2458 if (alignment > printed)
2459 alignment -= printed;
2460 else
2461 alignment = 0;
2462
2463 fprintf(trace->output, ")%*s= ", alignment, " ");
2464
Arnaldo Carvalho de Meloda3c9a42013-08-26 11:28:34 -03002465 if (sc->fmt == NULL) {
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03002466 if (ret < 0)
2467 goto errno_print;
Arnaldo Carvalho de Meloda3c9a42013-08-26 11:28:34 -03002468signed_print:
Arnaldo Carvalho de Melo4b8a2402018-12-17 11:48:46 -03002469 fprintf(trace->output, "%ld", ret);
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03002470 } else if (ret < 0) {
2471errno_print: {
Masami Hiramatsu942a91e2014-08-14 02:22:41 +00002472 char bf[STRERR_BUFSIZE];
Arnaldo Carvalho de Meloc8b5f2c2016-07-06 11:56:20 -03002473 const char *emsg = str_error_r(-ret, bf, sizeof(bf)),
Hendrik Brueckner092bd3c2018-01-19 09:56:16 +01002474 *e = errno_to_name(evsel, -ret);
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002475
Arnaldo Carvalho de Melo2c83dfa2018-12-17 12:06:34 -03002476 fprintf(trace->output, "-1 %s (%s)", e, emsg);
Arnaldo Carvalho de Melo1f631392017-07-18 12:45:57 -03002477 }
Arnaldo Carvalho de Meloda3c9a42013-08-26 11:28:34 -03002478 } else if (ret == 0 && sc->fmt->timeout)
Arnaldo Carvalho de Melo2c83dfa2018-12-17 12:06:34 -03002479 fprintf(trace->output, "0 (Timeout)");
Arnaldo Carvalho de Melo84486ca2017-07-14 11:35:03 -03002480 else if (ttrace->ret_scnprintf) {
2481 char bf[1024];
Arnaldo Carvalho de Melo7ee57432017-07-14 15:16:54 -03002482 struct syscall_arg arg = {
2483 .val = ret,
2484 .thread = thread,
2485 .trace = trace,
2486 };
2487 ttrace->ret_scnprintf(bf, sizeof(bf), &arg);
Arnaldo Carvalho de Melo84486ca2017-07-14 11:35:03 -03002488 ttrace->ret_scnprintf = NULL;
Arnaldo Carvalho de Melo4b8a2402018-12-17 11:48:46 -03002489 fprintf(trace->output, "%s", bf);
Arnaldo Carvalho de Melo84486ca2017-07-14 11:35:03 -03002490 } else if (sc->fmt->hexret)
Arnaldo Carvalho de Melo4b8a2402018-12-17 11:48:46 -03002491 fprintf(trace->output, "%#lx", ret);
Arnaldo Carvalho de Melo11c8e392016-04-06 14:33:07 -03002492 else if (sc->fmt->errpid) {
2493 struct thread *child = machine__find_thread(trace->host, ret, ret);
2494
2495 if (child != NULL) {
Arnaldo Carvalho de Melo4b8a2402018-12-17 11:48:46 -03002496 fprintf(trace->output, "%ld", ret);
Arnaldo Carvalho de Melo11c8e392016-04-06 14:33:07 -03002497 if (child->comm_set)
2498 fprintf(trace->output, " (%s)", thread__comm_str(child));
2499 thread__put(child);
2500 }
2501 } else
Arnaldo Carvalho de Meloda3c9a42013-08-26 11:28:34 -03002502 goto signed_print;
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002503
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03002504 fputc('\n', trace->output);
Milian Wolff566a0882016-04-08 13:34:15 +02002505
Arnaldo Carvalho de Melo5067a8c2018-10-18 16:38:27 -03002506 /*
2507 * We only consider an 'event' for the sake of --max-events a non-filtered
2508 * sys_enter + sys_exit and other tracepoint events.
2509 */
2510 if (++trace->nr_events_printed == trace->max_events && trace->max_events != ULONG_MAX)
2511 interrupted = true;
2512
Arnaldo Carvalho de Melo5cf9c842016-04-15 11:10:31 -03002513 if (callchain_ret > 0)
2514 trace__fprintf_callchain(trace, sample);
2515 else if (callchain_ret < 0)
2516 pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel));
Arnaldo Carvalho de Meloae9ed032012-10-08 09:56:00 -03002517out:
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03002518 ttrace->entry_pending = false;
Arnaldo Carvalho de Melob91fc392015-04-06 20:43:22 -03002519 err = 0;
2520out_put:
2521 thread__put(thread);
2522 return err;
Arnaldo Carvalho de Meloba3d7de2012-09-28 17:58:36 -03002523}
2524
Jiri Olsa32dcd022019-07-21 13:23:51 +02002525static int trace__vfs_getname(struct trace *trace, struct evsel *evsel,
Stanislav Fomichev0c82adc2014-06-26 20:14:24 +04002526 union perf_event *event __maybe_unused,
Arnaldo Carvalho de Meloc5227392013-09-27 18:06:19 -03002527 struct perf_sample *sample)
2528{
Arnaldo Carvalho de Melof9945922015-08-04 22:30:09 -03002529 struct thread *thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
2530 struct thread_trace *ttrace;
2531 size_t filename_len, entry_str_len, to_move;
2532 ssize_t remaining_space;
2533 char *pos;
Arnaldo Carvalho de Melo7f4f8002015-08-14 13:16:27 -03002534 const char *filename = perf_evsel__rawptr(evsel, sample, "pathname");
Arnaldo Carvalho de Melof9945922015-08-04 22:30:09 -03002535
2536 if (!thread)
2537 goto out;
2538
2539 ttrace = thread__priv(thread);
2540 if (!ttrace)
Arnaldo Carvalho de Meloef65e962017-03-24 15:03:19 -03002541 goto out_put;
Arnaldo Carvalho de Melof9945922015-08-04 22:30:09 -03002542
Arnaldo Carvalho de Melo7f4f8002015-08-14 13:16:27 -03002543 filename_len = strlen(filename);
Arnaldo Carvalho de Melo39f0e7a2017-03-24 14:51:28 -03002544 if (filename_len == 0)
Arnaldo Carvalho de Meloef65e962017-03-24 15:03:19 -03002545 goto out_put;
Arnaldo Carvalho de Melo7f4f8002015-08-14 13:16:27 -03002546
2547 if (ttrace->filename.namelen < filename_len) {
2548 char *f = realloc(ttrace->filename.name, filename_len + 1);
2549
2550 if (f == NULL)
Arnaldo Carvalho de Meloef65e962017-03-24 15:03:19 -03002551 goto out_put;
Arnaldo Carvalho de Melo7f4f8002015-08-14 13:16:27 -03002552
2553 ttrace->filename.namelen = filename_len;
2554 ttrace->filename.name = f;
2555 }
2556
2557 strcpy(ttrace->filename.name, filename);
2558 ttrace->filename.pending_open = true;
2559
Arnaldo Carvalho de Melof9945922015-08-04 22:30:09 -03002560 if (!ttrace->filename.ptr)
Arnaldo Carvalho de Meloef65e962017-03-24 15:03:19 -03002561 goto out_put;
Arnaldo Carvalho de Melof9945922015-08-04 22:30:09 -03002562
2563 entry_str_len = strlen(ttrace->entry_str);
2564 remaining_space = trace__entry_str_size - entry_str_len - 1; /* \0 */
2565 if (remaining_space <= 0)
Arnaldo Carvalho de Meloef65e962017-03-24 15:03:19 -03002566 goto out_put;
Arnaldo Carvalho de Melof9945922015-08-04 22:30:09 -03002567
Arnaldo Carvalho de Melof9945922015-08-04 22:30:09 -03002568 if (filename_len > (size_t)remaining_space) {
2569 filename += filename_len - remaining_space;
2570 filename_len = remaining_space;
2571 }
2572
2573 to_move = entry_str_len - ttrace->filename.entry_str_pos + 1; /* \0 */
2574 pos = ttrace->entry_str + ttrace->filename.entry_str_pos;
2575 memmove(pos + filename_len, pos, to_move);
2576 memcpy(pos, filename, filename_len);
2577
2578 ttrace->filename.ptr = 0;
2579 ttrace->filename.entry_str_pos = 0;
Arnaldo Carvalho de Meloef65e962017-03-24 15:03:19 -03002580out_put:
2581 thread__put(thread);
Arnaldo Carvalho de Melof9945922015-08-04 22:30:09 -03002582out:
Arnaldo Carvalho de Meloc5227392013-09-27 18:06:19 -03002583 return 0;
2584}
2585
Jiri Olsa32dcd022019-07-21 13:23:51 +02002586static int trace__sched_stat_runtime(struct trace *trace, struct evsel *evsel,
Stanislav Fomichev0c82adc2014-06-26 20:14:24 +04002587 union perf_event *event __maybe_unused,
Arnaldo Carvalho de Melo1302d882012-10-17 17:13:12 -03002588 struct perf_sample *sample)
2589{
2590 u64 runtime = perf_evsel__intval(evsel, sample, "runtime");
2591 double runtime_ms = (double)runtime / NSEC_PER_MSEC;
David Ahern8fb598e2013-09-28 13:13:00 -06002592 struct thread *thread = machine__findnew_thread(trace->host,
Adrian Hunter314add62013-08-27 11:23:03 +03002593 sample->pid,
2594 sample->tid);
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03002595 struct thread_trace *ttrace = thread__trace(thread, trace->output);
Arnaldo Carvalho de Melo1302d882012-10-17 17:13:12 -03002596
2597 if (ttrace == NULL)
2598 goto out_dump;
2599
2600 ttrace->runtime_ms += runtime_ms;
2601 trace->runtime_ms += runtime_ms;
Arnaldo Carvalho de Meloef65e962017-03-24 15:03:19 -03002602out_put:
Arnaldo Carvalho de Melob91fc392015-04-06 20:43:22 -03002603 thread__put(thread);
Arnaldo Carvalho de Melo1302d882012-10-17 17:13:12 -03002604 return 0;
2605
2606out_dump:
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03002607 fprintf(trace->output, "%s: comm=%s,pid=%u,runtime=%" PRIu64 ",vruntime=%" PRIu64 ")\n",
Arnaldo Carvalho de Melo1302d882012-10-17 17:13:12 -03002608 evsel->name,
2609 perf_evsel__strval(evsel, sample, "comm"),
2610 (pid_t)perf_evsel__intval(evsel, sample, "pid"),
2611 runtime,
2612 perf_evsel__intval(evsel, sample, "vruntime"));
Arnaldo Carvalho de Meloef65e962017-03-24 15:03:19 -03002613 goto out_put;
Arnaldo Carvalho de Melo1302d882012-10-17 17:13:12 -03002614}
2615
Arnaldo Carvalho de Melo923d0c92017-10-17 10:35:00 -03002616static int bpf_output__printer(enum binary_printer_ops op,
2617 unsigned int val, void *extra __maybe_unused, FILE *fp)
Wang Nan1d6c9402016-02-26 09:31:55 +00002618{
Wang Nan1d6c9402016-02-26 09:31:55 +00002619 unsigned char ch = (unsigned char)val;
2620
2621 switch (op) {
2622 case BINARY_PRINT_CHAR_DATA:
Arnaldo Carvalho de Melo923d0c92017-10-17 10:35:00 -03002623 return fprintf(fp, "%c", isprint(ch) ? ch : '.');
Wang Nan1d6c9402016-02-26 09:31:55 +00002624 case BINARY_PRINT_DATA_BEGIN:
2625 case BINARY_PRINT_LINE_BEGIN:
2626 case BINARY_PRINT_ADDR:
2627 case BINARY_PRINT_NUM_DATA:
2628 case BINARY_PRINT_NUM_PAD:
2629 case BINARY_PRINT_SEP:
2630 case BINARY_PRINT_CHAR_PAD:
2631 case BINARY_PRINT_LINE_END:
2632 case BINARY_PRINT_DATA_END:
2633 default:
2634 break;
2635 }
Arnaldo Carvalho de Melo923d0c92017-10-17 10:35:00 -03002636
2637 return 0;
Wang Nan1d6c9402016-02-26 09:31:55 +00002638}
2639
2640static void bpf_output__fprintf(struct trace *trace,
2641 struct perf_sample *sample)
2642{
Arnaldo Carvalho de Melo923d0c92017-10-17 10:35:00 -03002643 binary__fprintf(sample->raw_data, sample->raw_size, 8,
2644 bpf_output__printer, NULL, trace->output);
Arnaldo Carvalho de Melo5067a8c2018-10-18 16:38:27 -03002645 ++trace->nr_events_printed;
Wang Nan1d6c9402016-02-26 09:31:55 +00002646}
2647
Arnaldo Carvalho de Melof11b2802019-10-04 15:28:13 -03002648static size_t trace__fprintf_tp_fields(struct trace *trace, struct evsel *evsel, struct perf_sample *sample,
2649 struct thread *thread, void *augmented_args, int augmented_args_size)
2650{
2651 char bf[2048];
2652 size_t size = sizeof(bf);
2653 struct tep_format_field *field = evsel->tp_format->format.fields;
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -03002654 struct syscall_arg_fmt *arg = __evsel__syscall_arg_fmt(evsel);
Arnaldo Carvalho de Melof11b2802019-10-04 15:28:13 -03002655 size_t printed = 0;
2656 unsigned long val;
2657 u8 bit = 1;
2658 struct syscall_arg syscall_arg = {
2659 .augmented = {
2660 .size = augmented_args_size,
2661 .args = augmented_args,
2662 },
2663 .idx = 0,
2664 .mask = 0,
2665 .trace = trace,
2666 .thread = thread,
2667 .show_string_prefix = trace->show_string_prefix,
2668 };
2669
2670 for (; field && arg; field = field->next, ++syscall_arg.idx, bit <<= 1, ++arg) {
2671 if (syscall_arg.mask & bit)
2672 continue;
2673
Arnaldo Carvalho de Meloc5e006c2019-10-15 08:26:47 -03002674 syscall_arg.len = 0;
Arnaldo Carvalho de Melof11b2802019-10-04 15:28:13 -03002675 syscall_arg.fmt = arg;
Arnaldo Carvalho de Meloc5e006c2019-10-15 08:26:47 -03002676 if (field->flags & TEP_FIELD_IS_ARRAY) {
2677 int offset = field->offset;
2678
2679 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
2680 offset = format_field__intval(field, sample, evsel->needs_swap);
2681 syscall_arg.len = offset >> 16;
2682 offset &= 0xffff;
2683 }
2684
2685 val = (uintptr_t)(sample->raw_data + offset);
2686 } else
Arnaldo Carvalho de Melof11b2802019-10-04 15:28:13 -03002687 val = format_field__intval(field, sample, evsel->needs_swap);
2688 /*
2689 * Some syscall args need some mask, most don't and
2690 * return val untouched.
2691 */
2692 val = syscall_arg_fmt__mask_val(arg, &syscall_arg, val);
2693
2694 /*
2695 * Suppress this argument if its value is zero and
2696 * and we don't have a string associated in an
2697 * strarray for it.
2698 */
2699 if (val == 0 &&
2700 !trace->show_zeros &&
2701 !((arg->show_zero ||
2702 arg->scnprintf == SCA_STRARRAY ||
2703 arg->scnprintf == SCA_STRARRAYS) &&
2704 arg->parm))
2705 continue;
2706
2707 printed += scnprintf(bf + printed, size - printed, "%s", printed ? ", " : "");
2708
2709 /*
2710 * XXX Perhaps we should have a show_tp_arg_names,
2711 * leaving show_arg_names just for syscalls?
2712 */
2713 if (1 || trace->show_arg_names)
2714 printed += scnprintf(bf + printed, size - printed, "%s: ", field->name);
2715
2716 printed += syscall_arg_fmt__scnprintf_val(arg, bf + printed, size - printed, &syscall_arg, val);
2717 }
2718
2719 return printed + fprintf(trace->output, "%s", bf);
2720}
2721
Jiri Olsa32dcd022019-07-21 13:23:51 +02002722static int trace__event_handler(struct trace *trace, struct evsel *evsel,
Arnaldo Carvalho de Melo14a052d2015-02-03 12:58:57 -03002723 union perf_event *event __maybe_unused,
2724 struct perf_sample *sample)
2725{
Arnaldo Carvalho de Meloa9c5e6c2018-10-22 14:14:16 -03002726 struct thread *thread;
Arnaldo Carvalho de Melo7ad35612016-04-20 19:55:48 -03002727 int callchain_ret = 0;
Arnaldo Carvalho de Meloa9c5e6c2018-10-22 14:14:16 -03002728 /*
2729 * Check if we called perf_evsel__disable(evsel) due to, for instance,
2730 * this event's max_events having been hit and this is an entry coming
2731 * from the ring buffer that we should discard, since the max events
2732 * have already been considered/printed.
2733 */
2734 if (evsel->disabled)
2735 return 0;
2736
2737 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
Arnaldo Carvalho de Melo7ad35612016-04-20 19:55:48 -03002738
2739 if (sample->callchain) {
2740 callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor);
2741 if (callchain_ret == 0) {
2742 if (callchain_cursor.nr < trace->min_stack)
2743 goto out;
2744 callchain_ret = 1;
2745 }
2746 }
2747
Arnaldo Carvalho de Melo522283f2018-01-22 11:42:11 -03002748 trace__printf_interrupted_entry(trace);
Arnaldo Carvalho de Melo14a052d2015-02-03 12:58:57 -03002749 trace__fprintf_tstamp(trace, sample->time, trace->output);
Arnaldo Carvalho de Melo08089212015-02-19 21:51:50 -08002750
Arnaldo Carvalho de Melo42e4a522018-12-14 10:22:18 -03002751 if (trace->trace_syscalls && trace->show_duration)
Arnaldo Carvalho de Melo08089212015-02-19 21:51:50 -08002752 fprintf(trace->output, "( ): ");
2753
Arnaldo Carvalho de Meloc4191e52018-08-30 13:37:28 -03002754 if (thread)
2755 trace__fprintf_comm_tid(trace, thread, trace->output);
2756
Arnaldo Carvalho de Melo1cdf6182018-08-21 11:44:23 -03002757 if (evsel == trace->syscalls.events.augmented) {
2758 int id = perf_evsel__sc_tp_uint(evsel, id, sample);
2759 struct syscall *sc = trace__syscall_info(trace, evsel, id);
2760
2761 if (sc) {
Arnaldo Carvalho de Meloc4191e52018-08-30 13:37:28 -03002762 fprintf(trace->output, "%s(", sc->name);
2763 trace__fprintf_sys_enter(trace, evsel, sample);
2764 fputc(')', trace->output);
2765 goto newline;
Arnaldo Carvalho de Melo1cdf6182018-08-21 11:44:23 -03002766 }
2767
2768 /*
2769 * XXX: Not having the associated syscall info or not finding/adding
2770 * the thread should never happen, but if it does...
2771 * fall thru and print it as a bpf_output event.
2772 */
2773 }
2774
Arnaldo Carvalho de Melo311baaf2019-10-04 15:01:30 -03002775 fprintf(trace->output, "%s(", evsel->name);
Arnaldo Carvalho de Melo14a052d2015-02-03 12:58:57 -03002776
Wang Nan1d6c9402016-02-26 09:31:55 +00002777 if (perf_evsel__is_bpf_output(evsel)) {
Arnaldo Carvalho de Melo1cdf6182018-08-21 11:44:23 -03002778 bpf_output__fprintf(trace, sample);
Wang Nan1d6c9402016-02-26 09:31:55 +00002779 } else if (evsel->tp_format) {
Arnaldo Carvalho de Meloa98392b2018-08-02 14:05:09 -03002780 if (strncmp(evsel->tp_format->name, "sys_enter_", 10) ||
2781 trace__fprintf_sys_enter(trace, evsel, sample)) {
Arnaldo Carvalho de Melof11b2802019-10-04 15:28:13 -03002782 if (trace->libtraceevent_print) {
2783 event_format__fprintf(evsel->tp_format, sample->cpu,
2784 sample->raw_data, sample->raw_size,
2785 trace->output);
2786 } else {
2787 trace__fprintf_tp_fields(trace, evsel, sample, thread, NULL, 0);
2788 }
Arnaldo Carvalho de Meloa98392b2018-08-02 14:05:09 -03002789 }
Arnaldo Carvalho de Melo14a052d2015-02-03 12:58:57 -03002790 }
2791
Arnaldo Carvalho de Melo1cdf6182018-08-21 11:44:23 -03002792newline:
Arnaldo Carvalho de Melo311baaf2019-10-04 15:01:30 -03002793 fprintf(trace->output, ")\n");
Arnaldo Carvalho de Melo202ff962016-04-12 10:11:07 -03002794
Arnaldo Carvalho de Melo7ad35612016-04-20 19:55:48 -03002795 if (callchain_ret > 0)
2796 trace__fprintf_callchain(trace, sample);
2797 else if (callchain_ret < 0)
2798 pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel));
Arnaldo Carvalho de Melodb25bf92019-10-18 11:48:57 -03002799
2800 ++trace->nr_events_printed;
2801
2802 if (evsel->max_events != ULONG_MAX && ++evsel->nr_events_printed == evsel->max_events) {
2803 evsel__disable(evsel);
2804 evsel__close(evsel);
2805 }
Arnaldo Carvalho de Melo7ad35612016-04-20 19:55:48 -03002806out:
Arnaldo Carvalho de Meloa937c662018-10-20 09:27:52 -03002807 thread__put(thread);
Arnaldo Carvalho de Melo14a052d2015-02-03 12:58:57 -03002808 return 0;
2809}
2810
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04002811static void print_location(FILE *f, struct perf_sample *sample,
2812 struct addr_location *al,
2813 bool print_dso, bool print_sym)
2814{
2815
Namhyung Kimbb963e12017-02-17 17:17:38 +09002816 if ((verbose > 0 || print_dso) && al->map)
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04002817 fprintf(f, "%s@", al->map->dso->long_name);
2818
Namhyung Kimbb963e12017-02-17 17:17:38 +09002819 if ((verbose > 0 || print_sym) && al->sym)
Arnaldo Carvalho de Melo4414a3c2014-07-08 15:39:21 -03002820 fprintf(f, "%s+0x%" PRIx64, al->sym->name,
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04002821 al->addr - al->sym->start);
2822 else if (al->map)
Arnaldo Carvalho de Melo4414a3c2014-07-08 15:39:21 -03002823 fprintf(f, "0x%" PRIx64, al->addr);
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04002824 else
Arnaldo Carvalho de Melo4414a3c2014-07-08 15:39:21 -03002825 fprintf(f, "0x%" PRIx64, sample->addr);
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04002826}
2827
2828static int trace__pgfault(struct trace *trace,
Jiri Olsa32dcd022019-07-21 13:23:51 +02002829 struct evsel *evsel,
Arnaldo Carvalho de Melo473398a2016-03-22 18:23:43 -03002830 union perf_event *event __maybe_unused,
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04002831 struct perf_sample *sample)
2832{
2833 struct thread *thread;
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04002834 struct addr_location al;
2835 char map_type = 'd';
Stanislav Fomicheva2ea67d2014-07-08 22:05:16 +04002836 struct thread_trace *ttrace;
Arnaldo Carvalho de Melob91fc392015-04-06 20:43:22 -03002837 int err = -1;
Arnaldo Carvalho de Melo1df54292016-04-20 20:06:02 -03002838 int callchain_ret = 0;
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04002839
2840 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
Arnaldo Carvalho de Melo1df54292016-04-20 20:06:02 -03002841
2842 if (sample->callchain) {
2843 callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor);
2844 if (callchain_ret == 0) {
2845 if (callchain_cursor.nr < trace->min_stack)
2846 goto out_put;
2847 callchain_ret = 1;
2848 }
2849 }
2850
Stanislav Fomicheva2ea67d2014-07-08 22:05:16 +04002851 ttrace = thread__trace(thread, trace->output);
2852 if (ttrace == NULL)
Arnaldo Carvalho de Melob91fc392015-04-06 20:43:22 -03002853 goto out_put;
Stanislav Fomicheva2ea67d2014-07-08 22:05:16 +04002854
Jiri Olsa1fc632c2019-07-21 13:24:29 +02002855 if (evsel->core.attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)
Stanislav Fomicheva2ea67d2014-07-08 22:05:16 +04002856 ttrace->pfmaj++;
2857 else
2858 ttrace->pfmin++;
2859
2860 if (trace->summary_only)
Arnaldo Carvalho de Melob91fc392015-04-06 20:43:22 -03002861 goto out;
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04002862
Arnaldo Carvalho de Melo45462632018-04-24 11:24:49 -03002863 thread__find_symbol(thread, sample->cpumode, sample->ip, &al);
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04002864
Arnaldo Carvalho de Melofd2b2972017-03-29 16:37:51 -03002865 trace__fprintf_entry_head(trace, thread, 0, true, sample->time, trace->output);
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04002866
2867 fprintf(trace->output, "%sfault [",
Jiri Olsa1fc632c2019-07-21 13:24:29 +02002868 evsel->core.attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ?
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04002869 "maj" : "min");
2870
2871 print_location(trace->output, sample, &al, false, true);
2872
2873 fprintf(trace->output, "] => ");
2874
Arnaldo Carvalho de Melo117d3c22018-04-25 18:16:53 -03002875 thread__find_symbol(thread, sample->cpumode, sample->addr, &al);
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04002876
2877 if (!al.map) {
Arnaldo Carvalho de Melo45462632018-04-24 11:24:49 -03002878 thread__find_symbol(thread, sample->cpumode, sample->addr, &al);
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04002879
2880 if (al.map)
2881 map_type = 'x';
2882 else
2883 map_type = '?';
2884 }
2885
2886 print_location(trace->output, sample, &al, true, false);
2887
2888 fprintf(trace->output, " (%c%c)\n", map_type, al.level);
Arnaldo Carvalho de Melo0c3a6ef2016-04-19 16:31:12 -03002889
Arnaldo Carvalho de Melo1df54292016-04-20 20:06:02 -03002890 if (callchain_ret > 0)
2891 trace__fprintf_callchain(trace, sample);
2892 else if (callchain_ret < 0)
2893 pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel));
Arnaldo Carvalho de Melo5067a8c2018-10-18 16:38:27 -03002894
2895 ++trace->nr_events_printed;
Arnaldo Carvalho de Melob91fc392015-04-06 20:43:22 -03002896out:
2897 err = 0;
2898out_put:
2899 thread__put(thread);
2900 return err;
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04002901}
2902
Arnaldo Carvalho de Meloe6001982016-03-31 15:16:28 -03002903static void trace__set_base_time(struct trace *trace,
Jiri Olsa32dcd022019-07-21 13:23:51 +02002904 struct evsel *evsel,
Arnaldo Carvalho de Meloe6001982016-03-31 15:16:28 -03002905 struct perf_sample *sample)
2906{
Arnaldo Carvalho de Melo8a07a802016-03-31 15:19:39 -03002907 /*
2908 * BPF events were not setting PERF_SAMPLE_TIME, so be more robust
2909 * and don't use sample->time unconditionally, we may end up having
2910 * some other event in the future without PERF_SAMPLE_TIME for good
2911 * reason, i.e. we may not be interested in its timestamps, just in
2912 * it taking place, picking some piece of information when it
2913 * appears in our event stream (vfs_getname comes to mind).
2914 */
2915 if (trace->base_time == 0 && !trace->full_time &&
Jiri Olsa1fc632c2019-07-21 13:24:29 +02002916 (evsel->core.attr.sample_type & PERF_SAMPLE_TIME))
Arnaldo Carvalho de Meloe6001982016-03-31 15:16:28 -03002917 trace->base_time = sample->time;
2918}
2919
David Ahern6810fc92013-08-28 22:29:52 -06002920static int trace__process_sample(struct perf_tool *tool,
Stanislav Fomichev0c82adc2014-06-26 20:14:24 +04002921 union perf_event *event,
David Ahern6810fc92013-08-28 22:29:52 -06002922 struct perf_sample *sample,
Jiri Olsa32dcd022019-07-21 13:23:51 +02002923 struct evsel *evsel,
David Ahern6810fc92013-08-28 22:29:52 -06002924 struct machine *machine __maybe_unused)
2925{
2926 struct trace *trace = container_of(tool, struct trace, tool);
David Ahernaa07df62016-11-25 09:29:52 -07002927 struct thread *thread;
David Ahern6810fc92013-08-28 22:29:52 -06002928 int err = 0;
2929
Arnaldo Carvalho de Melo744a9712013-11-06 10:17:38 -03002930 tracepoint_handler handler = evsel->handler;
David Ahern6810fc92013-08-28 22:29:52 -06002931
David Ahernaa07df62016-11-25 09:29:52 -07002932 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
2933 if (thread && thread__is_filtered(thread))
Arnaldo Carvalho de Meloef65e962017-03-24 15:03:19 -03002934 goto out;
David Ahernbdc89662013-08-28 22:29:53 -06002935
Arnaldo Carvalho de Meloe6001982016-03-31 15:16:28 -03002936 trace__set_base_time(trace, evsel, sample);
David Ahern6810fc92013-08-28 22:29:52 -06002937
David Ahern31605652013-12-04 19:41:41 -07002938 if (handler) {
2939 ++trace->nr_events;
Stanislav Fomichev0c82adc2014-06-26 20:14:24 +04002940 handler(trace, evsel, event, sample);
David Ahern31605652013-12-04 19:41:41 -07002941 }
Arnaldo Carvalho de Meloef65e962017-03-24 15:03:19 -03002942out:
2943 thread__put(thread);
David Ahern6810fc92013-08-28 22:29:52 -06002944 return err;
2945}
2946
Stanislav Fomichev1e28fe02014-06-26 20:14:26 +04002947static int trace__record(struct trace *trace, int argc, const char **argv)
David Ahern5e2485b2013-09-28 13:13:01 -06002948{
2949 unsigned int rec_argc, i, j;
2950 const char **rec_argv;
2951 const char * const record_args[] = {
2952 "record",
2953 "-R",
2954 "-m", "1024",
2955 "-c", "1",
David Ahern5e2485b2013-09-28 13:13:01 -06002956 };
Arnaldo Carvalho de Melo7fbfe222019-10-14 20:13:51 -03002957 pid_t pid = getpid();
2958 char *filter = asprintf__tp_filter_pids(1, &pid);
Stanislav Fomichev1e28fe02014-06-26 20:14:26 +04002959 const char * const sc_args[] = { "-e", };
2960 unsigned int sc_args_nr = ARRAY_SIZE(sc_args);
2961 const char * const majpf_args[] = { "-e", "major-faults" };
2962 unsigned int majpf_args_nr = ARRAY_SIZE(majpf_args);
2963 const char * const minpf_args[] = { "-e", "minor-faults" };
2964 unsigned int minpf_args_nr = ARRAY_SIZE(minpf_args);
Arnaldo Carvalho de Melo7fbfe222019-10-14 20:13:51 -03002965 int err = -1;
Stanislav Fomichev1e28fe02014-06-26 20:14:26 +04002966
Arnaldo Carvalho de Melo7fbfe222019-10-14 20:13:51 -03002967 /* +3 is for the event string below and the pid filter */
2968 rec_argc = ARRAY_SIZE(record_args) + sc_args_nr + 3 +
Stanislav Fomichev1e28fe02014-06-26 20:14:26 +04002969 majpf_args_nr + minpf_args_nr + argc;
David Ahern5e2485b2013-09-28 13:13:01 -06002970 rec_argv = calloc(rec_argc + 1, sizeof(char *));
2971
Arnaldo Carvalho de Melo7fbfe222019-10-14 20:13:51 -03002972 if (rec_argv == NULL || filter == NULL)
2973 goto out_free;
David Ahern5e2485b2013-09-28 13:13:01 -06002974
Stanislav Fomichev1e28fe02014-06-26 20:14:26 +04002975 j = 0;
David Ahern5e2485b2013-09-28 13:13:01 -06002976 for (i = 0; i < ARRAY_SIZE(record_args); i++)
Stanislav Fomichev1e28fe02014-06-26 20:14:26 +04002977 rec_argv[j++] = record_args[i];
2978
Stanislav Fomicheve281a962014-06-26 20:14:28 +04002979 if (trace->trace_syscalls) {
2980 for (i = 0; i < sc_args_nr; i++)
2981 rec_argv[j++] = sc_args[i];
David Ahern5e2485b2013-09-28 13:13:01 -06002982
Stanislav Fomicheve281a962014-06-26 20:14:28 +04002983 /* event string may be different for older kernels - e.g., RHEL6 */
2984 if (is_valid_tracepoint("raw_syscalls:sys_enter"))
2985 rec_argv[j++] = "raw_syscalls:sys_enter,raw_syscalls:sys_exit";
2986 else if (is_valid_tracepoint("syscalls:sys_enter"))
2987 rec_argv[j++] = "syscalls:sys_enter,syscalls:sys_exit";
2988 else {
2989 pr_err("Neither raw_syscalls nor syscalls events exist.\n");
Arnaldo Carvalho de Melo7fbfe222019-10-14 20:13:51 -03002990 goto out_free;
Stanislav Fomicheve281a962014-06-26 20:14:28 +04002991 }
David Ahern9aca7f12013-12-04 19:41:39 -07002992 }
David Ahern9aca7f12013-12-04 19:41:39 -07002993
Arnaldo Carvalho de Melo7fbfe222019-10-14 20:13:51 -03002994 rec_argv[j++] = "--filter";
2995 rec_argv[j++] = filter;
2996
Stanislav Fomichev1e28fe02014-06-26 20:14:26 +04002997 if (trace->trace_pgfaults & TRACE_PFMAJ)
2998 for (i = 0; i < majpf_args_nr; i++)
2999 rec_argv[j++] = majpf_args[i];
David Ahern5e2485b2013-09-28 13:13:01 -06003000
Stanislav Fomichev1e28fe02014-06-26 20:14:26 +04003001 if (trace->trace_pgfaults & TRACE_PFMIN)
3002 for (i = 0; i < minpf_args_nr; i++)
3003 rec_argv[j++] = minpf_args[i];
3004
3005 for (i = 0; i < (unsigned int)argc; i++)
3006 rec_argv[j++] = argv[i];
3007
Arnaldo Carvalho de Melo7fbfe222019-10-14 20:13:51 -03003008 err = cmd_record(j, rec_argv);
3009out_free:
3010 free(filter);
3011 free(rec_argv);
3012 return err;
David Ahern5e2485b2013-09-28 13:13:01 -06003013}
3014
David Ahernbf2575c2013-10-08 21:26:53 -06003015static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp);
3016
Jiri Olsaa1cf3a72019-07-21 13:23:59 +02003017static bool evlist__add_vfs_getname(struct evlist *evlist)
Arnaldo Carvalho de Meloc5227392013-09-27 18:06:19 -03003018{
Arnaldo Carvalho de Melo6ab3bc22019-01-29 15:12:34 +01003019 bool found = false;
Jiri Olsa32dcd022019-07-21 13:23:51 +02003020 struct evsel *evsel, *tmp;
Ian Rogersa910e462019-11-15 23:46:52 -08003021 struct parse_events_error err;
3022 int ret;
Jiri Olsa8dd2a132015-09-07 10:38:06 +02003023
Ian Rogersa910e462019-11-15 23:46:52 -08003024 bzero(&err, sizeof(err));
3025 ret = parse_events(evlist, "probe:vfs_getname*", &err);
3026 if (ret) {
3027 free(err.str);
3028 free(err.help);
3029 free(err.first_str);
3030 free(err.first_help);
Arnaldo Carvalho de Melo08c98772015-08-04 17:01:04 -03003031 return false;
Ian Rogersa910e462019-11-15 23:46:52 -08003032 }
Arnaldo Carvalho de Meloc5227392013-09-27 18:06:19 -03003033
Arnaldo Carvalho de Melo6ab3bc22019-01-29 15:12:34 +01003034 evlist__for_each_entry_safe(evlist, evsel, tmp) {
3035 if (!strstarts(perf_evsel__name(evsel), "probe:vfs_getname"))
3036 continue;
3037
3038 if (perf_evsel__field(evsel, "pathname")) {
3039 evsel->handler = trace__vfs_getname;
3040 found = true;
3041 continue;
3042 }
3043
Jiri Olsab27c4ec2019-07-21 13:24:22 +02003044 list_del_init(&evsel->core.node);
Arnaldo Carvalho de Melo6ab3bc22019-01-29 15:12:34 +01003045 evsel->evlist = NULL;
Jiri Olsa5eb2dd22019-07-21 13:23:57 +02003046 evsel__delete(evsel);
Arnaldo Carvalho de Meloc5227392013-09-27 18:06:19 -03003047 }
3048
Arnaldo Carvalho de Melo6ab3bc22019-01-29 15:12:34 +01003049 return found;
Arnaldo Carvalho de Meloc5227392013-09-27 18:06:19 -03003050}
3051
Jiri Olsa32dcd022019-07-21 13:23:51 +02003052static struct evsel *perf_evsel__new_pgfault(u64 config)
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04003053{
Jiri Olsa32dcd022019-07-21 13:23:51 +02003054 struct evsel *evsel;
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04003055 struct perf_event_attr attr = {
3056 .type = PERF_TYPE_SOFTWARE,
3057 .mmap_data = 1,
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04003058 };
3059
3060 attr.config = config;
Arnaldo Carvalho de Melo05247982014-07-23 18:15:09 -03003061 attr.sample_period = 1;
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04003062
3063 event_attr_init(&attr);
3064
Jiri Olsa365c3ae2019-07-21 13:23:58 +02003065 evsel = evsel__new(&attr);
Arnaldo Carvalho de Melo0ae537c2016-04-19 16:00:01 -03003066 if (evsel)
3067 evsel->handler = trace__pgfault;
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04003068
Arnaldo Carvalho de Melo0ae537c2016-04-19 16:00:01 -03003069 return evsel;
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04003070}
3071
Arnaldo Carvalho de Meloddbb1b12015-02-21 12:10:29 -08003072static void trace__handle_event(struct trace *trace, union perf_event *event, struct perf_sample *sample)
3073{
3074 const u32 type = event->header.type;
Jiri Olsa32dcd022019-07-21 13:23:51 +02003075 struct evsel *evsel;
Arnaldo Carvalho de Meloddbb1b12015-02-21 12:10:29 -08003076
Arnaldo Carvalho de Meloddbb1b12015-02-21 12:10:29 -08003077 if (type != PERF_RECORD_SAMPLE) {
3078 trace__process_event(trace, trace->host, event, sample);
3079 return;
3080 }
3081
3082 evsel = perf_evlist__id2evsel(trace->evlist, sample->id);
3083 if (evsel == NULL) {
3084 fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample->id);
3085 return;
3086 }
3087
Arnaldo Carvalho de Melo22ac4312019-08-15 12:15:39 -03003088 if (evswitch__discard(&trace->evswitch, evsel))
3089 return;
3090
Arnaldo Carvalho de Meloe6001982016-03-31 15:16:28 -03003091 trace__set_base_time(trace, evsel, sample);
3092
Jiri Olsa1fc632c2019-07-21 13:24:29 +02003093 if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT &&
Arnaldo Carvalho de Meloddbb1b12015-02-21 12:10:29 -08003094 sample->raw_data == NULL) {
3095 fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n",
3096 perf_evsel__name(evsel), sample->tid,
3097 sample->cpu, sample->raw_size);
3098 } else {
3099 tracepoint_handler handler = evsel->handler;
3100 handler(trace, evsel, event, sample);
3101 }
Arnaldo Carvalho de Melo5067a8c2018-10-18 16:38:27 -03003102
3103 if (trace->nr_events_printed >= trace->max_events && trace->max_events != ULONG_MAX)
3104 interrupted = true;
Arnaldo Carvalho de Meloddbb1b12015-02-21 12:10:29 -08003105}
3106
Arnaldo Carvalho de Meloc27366f2015-07-02 18:24:51 -03003107static int trace__add_syscall_newtp(struct trace *trace)
3108{
3109 int ret = -1;
Jiri Olsa63503db2019-07-21 13:23:52 +02003110 struct evlist *evlist = trace->evlist;
Jiri Olsa32dcd022019-07-21 13:23:51 +02003111 struct evsel *sys_enter, *sys_exit;
Arnaldo Carvalho de Meloc27366f2015-07-02 18:24:51 -03003112
Arnaldo Carvalho de Melo63f11c82018-08-02 14:27:09 -03003113 sys_enter = perf_evsel__raw_syscall_newtp("sys_enter", trace__sys_enter);
Arnaldo Carvalho de Meloc27366f2015-07-02 18:24:51 -03003114 if (sys_enter == NULL)
3115 goto out;
3116
3117 if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args))
3118 goto out_delete_sys_enter;
3119
Arnaldo Carvalho de Melo63f11c82018-08-02 14:27:09 -03003120 sys_exit = perf_evsel__raw_syscall_newtp("sys_exit", trace__sys_exit);
Arnaldo Carvalho de Meloc27366f2015-07-02 18:24:51 -03003121 if (sys_exit == NULL)
3122 goto out_delete_sys_enter;
3123
3124 if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret))
3125 goto out_delete_sys_exit;
3126
Arnaldo Carvalho de Melo08e26392018-01-12 13:29:05 -03003127 perf_evsel__config_callchain(sys_enter, &trace->opts, &callchain_param);
3128 perf_evsel__config_callchain(sys_exit, &trace->opts, &callchain_param);
3129
Jiri Olsaa1cf3a72019-07-21 13:23:59 +02003130 evlist__add(evlist, sys_enter);
3131 evlist__add(evlist, sys_exit);
Arnaldo Carvalho de Meloc27366f2015-07-02 18:24:51 -03003132
Arnaldo Carvalho de Melo2ddd5c02016-04-18 12:09:08 -03003133 if (callchain_param.enabled && !trace->kernel_syscallchains) {
Arnaldo Carvalho de Melo44621812016-04-11 15:49:11 -03003134 /*
3135 * We're interested only in the user space callchain
3136 * leading to the syscall, allow overriding that for
3137 * debugging reasons using --kernel_syscall_callchains
3138 */
Jiri Olsa1fc632c2019-07-21 13:24:29 +02003139 sys_exit->core.attr.exclude_callchain_kernel = 1;
Arnaldo Carvalho de Melo44621812016-04-11 15:49:11 -03003140 }
3141
Arnaldo Carvalho de Melo8b3ce752015-07-02 18:28:11 -03003142 trace->syscalls.events.sys_enter = sys_enter;
3143 trace->syscalls.events.sys_exit = sys_exit;
Arnaldo Carvalho de Meloc27366f2015-07-02 18:24:51 -03003144
3145 ret = 0;
3146out:
3147 return ret;
3148
3149out_delete_sys_exit:
Jiri Olsa5eb2dd22019-07-21 13:23:57 +02003150 evsel__delete_priv(sys_exit);
Arnaldo Carvalho de Meloc27366f2015-07-02 18:24:51 -03003151out_delete_sys_enter:
Jiri Olsa5eb2dd22019-07-21 13:23:57 +02003152 evsel__delete_priv(sys_enter);
Arnaldo Carvalho de Meloc27366f2015-07-02 18:24:51 -03003153 goto out;
3154}
3155
Arnaldo Carvalho de Melo246fbe02018-12-12 11:06:53 -03003156static int trace__set_ev_qualifier_tp_filter(struct trace *trace)
Arnaldo Carvalho de Melo19867b62015-07-04 12:44:59 -03003157{
3158 int err = -1;
Jiri Olsa32dcd022019-07-21 13:23:51 +02003159 struct evsel *sys_exit;
Arnaldo Carvalho de Melo19867b62015-07-04 12:44:59 -03003160 char *filter = asprintf_expr_inout_ints("id", !trace->not_ev_qualifier,
3161 trace->ev_qualifier_ids.nr,
3162 trace->ev_qualifier_ids.entries);
3163
3164 if (filter == NULL)
3165 goto out_enomem;
3166
Mathieu Poirier3541c032016-09-16 08:44:04 -06003167 if (!perf_evsel__append_tp_filter(trace->syscalls.events.sys_enter,
3168 filter)) {
Mathieu Poirierb15d0a42016-09-16 08:44:03 -06003169 sys_exit = trace->syscalls.events.sys_exit;
Mathieu Poirier3541c032016-09-16 08:44:04 -06003170 err = perf_evsel__append_tp_filter(sys_exit, filter);
Mathieu Poirierb15d0a42016-09-16 08:44:03 -06003171 }
Arnaldo Carvalho de Melo19867b62015-07-04 12:44:59 -03003172
3173 free(filter);
3174out:
3175 return err;
3176out_enomem:
3177 errno = ENOMEM;
3178 goto out;
3179}
Arnaldo Carvalho de Meloc27366f2015-07-02 18:24:51 -03003180
Arnaldo Carvalho de Melob27b38e2018-12-12 13:39:24 -03003181#ifdef HAVE_LIBBPF_SUPPORT
Arnaldo Carvalho de Melo5834da72019-07-15 17:51:43 -03003182static struct bpf_program *trace__find_bpf_program_by_title(struct trace *trace, const char *name)
3183{
3184 if (trace->bpf_obj == NULL)
3185 return NULL;
3186
3187 return bpf_object__find_program_by_title(trace->bpf_obj, name);
3188}
3189
Arnaldo Carvalho de Melo6ff8fff2019-07-16 10:59:19 -03003190static struct bpf_program *trace__find_syscall_bpf_prog(struct trace *trace, struct syscall *sc,
3191 const char *prog_name, const char *type)
3192{
3193 struct bpf_program *prog;
3194
Arnaldo Carvalho de Melo8b8044e2019-07-16 15:24:58 -03003195 if (prog_name == NULL) {
3196 char default_prog_name[256];
3197 scnprintf(default_prog_name, sizeof(default_prog_name), "!syscalls:sys_%s_%s", type, sc->name);
3198 prog = trace__find_bpf_program_by_title(trace, default_prog_name);
3199 if (prog != NULL)
3200 goto out_found;
3201 if (sc->fmt && sc->fmt->alias) {
3202 scnprintf(default_prog_name, sizeof(default_prog_name), "!syscalls:sys_%s_%s", type, sc->fmt->alias);
3203 prog = trace__find_bpf_program_by_title(trace, default_prog_name);
3204 if (prog != NULL)
3205 goto out_found;
3206 }
Arnaldo Carvalho de Melo6ff8fff2019-07-16 10:59:19 -03003207 goto out_unaugmented;
Arnaldo Carvalho de Melo8b8044e2019-07-16 15:24:58 -03003208 }
Arnaldo Carvalho de Melo6ff8fff2019-07-16 10:59:19 -03003209
3210 prog = trace__find_bpf_program_by_title(trace, prog_name);
Arnaldo Carvalho de Melo8b8044e2019-07-16 15:24:58 -03003211
3212 if (prog != NULL) {
3213out_found:
Arnaldo Carvalho de Melo6ff8fff2019-07-16 10:59:19 -03003214 return prog;
Arnaldo Carvalho de Melo8b8044e2019-07-16 15:24:58 -03003215 }
Arnaldo Carvalho de Melo6ff8fff2019-07-16 10:59:19 -03003216
3217 pr_debug("Couldn't find BPF prog \"%s\" to associate with syscalls:sys_%s_%s, not augmenting it\n",
3218 prog_name, type, sc->name);
3219out_unaugmented:
3220 return trace->syscalls.unaugmented_prog;
3221}
3222
3223static void trace__init_syscall_bpf_progs(struct trace *trace, int id)
3224{
3225 struct syscall *sc = trace__syscall_info(trace, NULL, id);
3226
3227 if (sc == NULL)
3228 return;
3229
Arnaldo Carvalho de Melo8b8044e2019-07-16 15:24:58 -03003230 sc->bpf_prog.sys_enter = trace__find_syscall_bpf_prog(trace, sc, sc->fmt ? sc->fmt->bpf_prog_name.sys_enter : NULL, "enter");
3231 sc->bpf_prog.sys_exit = trace__find_syscall_bpf_prog(trace, sc, sc->fmt ? sc->fmt->bpf_prog_name.sys_exit : NULL, "exit");
Arnaldo Carvalho de Melo6ff8fff2019-07-16 10:59:19 -03003232}
3233
Arnaldo Carvalho de Melo3803a222019-07-16 11:27:03 -03003234static int trace__bpf_prog_sys_enter_fd(struct trace *trace, int id)
3235{
3236 struct syscall *sc = trace__syscall_info(trace, NULL, id);
3237 return sc ? bpf_program__fd(sc->bpf_prog.sys_enter) : bpf_program__fd(trace->syscalls.unaugmented_prog);
3238}
3239
3240static int trace__bpf_prog_sys_exit_fd(struct trace *trace, int id)
3241{
3242 struct syscall *sc = trace__syscall_info(trace, NULL, id);
3243 return sc ? bpf_program__fd(sc->bpf_prog.sys_exit) : bpf_program__fd(trace->syscalls.unaugmented_prog);
3244}
3245
Arnaldo Carvalho de Melo4cae86752019-06-03 16:52:46 -03003246static void trace__init_bpf_map_syscall_args(struct trace *trace, int id, struct bpf_map_syscall_entry *entry)
3247{
3248 struct syscall *sc = trace__syscall_info(trace, NULL, id);
3249 int arg = 0;
3250
3251 if (sc == NULL)
3252 goto out;
3253
3254 for (; arg < sc->nr_args; ++arg) {
3255 entry->string_args_len[arg] = 0;
3256 if (sc->arg_fmt[arg].scnprintf == SCA_FILENAME) {
3257 /* Should be set like strace -s strsize */
3258 entry->string_args_len[arg] = PATH_MAX;
3259 }
3260 }
3261out:
3262 for (; arg < 6; ++arg)
3263 entry->string_args_len[arg] = 0;
3264}
Arnaldo Carvalho de Melob27b38e2018-12-12 13:39:24 -03003265static int trace__set_ev_qualifier_bpf_filter(struct trace *trace)
3266{
3267 int fd = bpf_map__fd(trace->syscalls.map);
Arnaldo Carvalho de Melobbab50d2018-12-12 16:54:09 -03003268 struct bpf_map_syscall_entry value = {
3269 .enabled = !trace->not_ev_qualifier,
3270 };
Arnaldo Carvalho de Melob27b38e2018-12-12 13:39:24 -03003271 int err = 0;
3272 size_t i;
3273
3274 for (i = 0; i < trace->ev_qualifier_ids.nr; ++i) {
3275 int key = trace->ev_qualifier_ids.entries[i];
3276
Arnaldo Carvalho de Melo6ff8fff2019-07-16 10:59:19 -03003277 if (value.enabled) {
Arnaldo Carvalho de Melo4cae86752019-06-03 16:52:46 -03003278 trace__init_bpf_map_syscall_args(trace, key, &value);
Arnaldo Carvalho de Melo6ff8fff2019-07-16 10:59:19 -03003279 trace__init_syscall_bpf_progs(trace, key);
3280 }
Arnaldo Carvalho de Melo4cae86752019-06-03 16:52:46 -03003281
Arnaldo Carvalho de Melob27b38e2018-12-12 13:39:24 -03003282 err = bpf_map_update_elem(fd, &key, &value, BPF_EXIST);
3283 if (err)
3284 break;
3285 }
3286
3287 return err;
3288}
3289
3290static int __trace__init_syscalls_bpf_map(struct trace *trace, bool enabled)
3291{
3292 int fd = bpf_map__fd(trace->syscalls.map);
Arnaldo Carvalho de Melobbab50d2018-12-12 16:54:09 -03003293 struct bpf_map_syscall_entry value = {
3294 .enabled = enabled,
3295 };
Arnaldo Carvalho de Melob27b38e2018-12-12 13:39:24 -03003296 int err = 0, key;
3297
3298 for (key = 0; key < trace->sctbl->syscalls.nr_entries; ++key) {
Arnaldo Carvalho de Melo3803a222019-07-16 11:27:03 -03003299 if (enabled)
Arnaldo Carvalho de Melo4cae86752019-06-03 16:52:46 -03003300 trace__init_bpf_map_syscall_args(trace, key, &value);
3301
Arnaldo Carvalho de Melobbab50d2018-12-12 16:54:09 -03003302 err = bpf_map_update_elem(fd, &key, &value, BPF_ANY);
Arnaldo Carvalho de Melob27b38e2018-12-12 13:39:24 -03003303 if (err)
3304 break;
3305 }
3306
3307 return err;
3308}
3309
3310static int trace__init_syscalls_bpf_map(struct trace *trace)
3311{
3312 bool enabled = true;
3313
3314 if (trace->ev_qualifier_ids.nr)
3315 enabled = trace->not_ev_qualifier;
3316
3317 return __trace__init_syscalls_bpf_map(trace, enabled);
3318}
Arnaldo Carvalho de Melo3803a222019-07-16 11:27:03 -03003319
Arnaldo Carvalho de Meload4153f2019-07-17 18:27:33 -03003320static struct bpf_program *trace__find_usable_bpf_prog_entry(struct trace *trace, struct syscall *sc)
3321{
3322 struct tep_format_field *field, *candidate_field;
3323 int id;
3324
3325 /*
3326 * We're only interested in syscalls that have a pointer:
3327 */
3328 for (field = sc->args; field; field = field->next) {
3329 if (field->flags & TEP_FIELD_IS_POINTER)
3330 goto try_to_find_pair;
3331 }
3332
3333 return NULL;
3334
3335try_to_find_pair:
3336 for (id = 0; id < trace->sctbl->syscalls.nr_entries; ++id) {
3337 struct syscall *pair = trace__syscall_info(trace, NULL, id);
3338 struct bpf_program *pair_prog;
3339 bool is_candidate = false;
3340
3341 if (pair == NULL || pair == sc ||
3342 pair->bpf_prog.sys_enter == trace->syscalls.unaugmented_prog)
3343 continue;
3344
3345 for (field = sc->args, candidate_field = pair->args;
3346 field && candidate_field; field = field->next, candidate_field = candidate_field->next) {
3347 bool is_pointer = field->flags & TEP_FIELD_IS_POINTER,
3348 candidate_is_pointer = candidate_field->flags & TEP_FIELD_IS_POINTER;
3349
3350 if (is_pointer) {
3351 if (!candidate_is_pointer) {
3352 // The candidate just doesn't copies our pointer arg, might copy other pointers we want.
3353 continue;
3354 }
3355 } else {
3356 if (candidate_is_pointer) {
3357 // The candidate might copy a pointer we don't have, skip it.
3358 goto next_candidate;
3359 }
3360 continue;
3361 }
3362
3363 if (strcmp(field->type, candidate_field->type))
3364 goto next_candidate;
3365
3366 is_candidate = true;
3367 }
3368
3369 if (!is_candidate)
3370 goto next_candidate;
3371
3372 /*
3373 * Check if the tentative pair syscall augmenter has more pointers, if it has,
3374 * then it may be collecting that and we then can't use it, as it would collect
3375 * more than what is common to the two syscalls.
3376 */
3377 if (candidate_field) {
3378 for (candidate_field = candidate_field->next; candidate_field; candidate_field = candidate_field->next)
3379 if (candidate_field->flags & TEP_FIELD_IS_POINTER)
3380 goto next_candidate;
3381 }
3382
3383 pair_prog = pair->bpf_prog.sys_enter;
3384 /*
3385 * If the pair isn't enabled, then its bpf_prog.sys_enter will not
3386 * have been searched for, so search it here and if it returns the
3387 * unaugmented one, then ignore it, otherwise we'll reuse that BPF
3388 * program for a filtered syscall on a non-filtered one.
3389 *
3390 * For instance, we have "!syscalls:sys_enter_renameat" and that is
3391 * useful for "renameat2".
3392 */
3393 if (pair_prog == NULL) {
3394 pair_prog = trace__find_syscall_bpf_prog(trace, pair, pair->fmt ? pair->fmt->bpf_prog_name.sys_enter : NULL, "enter");
3395 if (pair_prog == trace->syscalls.unaugmented_prog)
3396 goto next_candidate;
3397 }
3398
3399 pr_debug("Reusing \"%s\" BPF sys_enter augmenter for \"%s\"\n", pair->name, sc->name);
3400 return pair_prog;
3401 next_candidate:
3402 continue;
3403 }
3404
3405 return NULL;
3406}
3407
Arnaldo Carvalho de Melo3803a222019-07-16 11:27:03 -03003408static int trace__init_syscalls_bpf_prog_array_maps(struct trace *trace)
3409{
3410 int map_enter_fd = bpf_map__fd(trace->syscalls.prog_array.sys_enter),
3411 map_exit_fd = bpf_map__fd(trace->syscalls.prog_array.sys_exit);
3412 int err = 0, key;
3413
3414 for (key = 0; key < trace->sctbl->syscalls.nr_entries; ++key) {
3415 int prog_fd;
3416
3417 if (!trace__syscall_enabled(trace, key))
3418 continue;
3419
3420 trace__init_syscall_bpf_progs(trace, key);
3421
3422 // It'll get at least the "!raw_syscalls:unaugmented"
3423 prog_fd = trace__bpf_prog_sys_enter_fd(trace, key);
3424 err = bpf_map_update_elem(map_enter_fd, &key, &prog_fd, BPF_ANY);
3425 if (err)
3426 break;
3427 prog_fd = trace__bpf_prog_sys_exit_fd(trace, key);
3428 err = bpf_map_update_elem(map_exit_fd, &key, &prog_fd, BPF_ANY);
3429 if (err)
3430 break;
3431 }
3432
Arnaldo Carvalho de Meload4153f2019-07-17 18:27:33 -03003433 /*
3434 * Now lets do a second pass looking for enabled syscalls without
3435 * an augmenter that have a signature that is a superset of another
3436 * syscall with an augmenter so that we can auto-reuse it.
3437 *
3438 * I.e. if we have an augmenter for the "open" syscall that has
3439 * this signature:
3440 *
3441 * int open(const char *pathname, int flags, mode_t mode);
3442 *
3443 * I.e. that will collect just the first string argument, then we
3444 * can reuse it for the 'creat' syscall, that has this signature:
3445 *
3446 * int creat(const char *pathname, mode_t mode);
3447 *
3448 * and for:
3449 *
3450 * int stat(const char *pathname, struct stat *statbuf);
3451 * int lstat(const char *pathname, struct stat *statbuf);
3452 *
3453 * Because the 'open' augmenter will collect the first arg as a string,
3454 * and leave alone all the other args, which already helps with
3455 * beautifying 'stat' and 'lstat''s pathname arg.
3456 *
3457 * Then, in time, when 'stat' gets an augmenter that collects both
3458 * first and second arg (this one on the raw_syscalls:sys_exit prog
3459 * array tail call, then that one will be used.
3460 */
3461 for (key = 0; key < trace->sctbl->syscalls.nr_entries; ++key) {
3462 struct syscall *sc = trace__syscall_info(trace, NULL, key);
3463 struct bpf_program *pair_prog;
3464 int prog_fd;
3465
3466 if (sc == NULL || sc->bpf_prog.sys_enter == NULL)
3467 continue;
3468
3469 /*
3470 * For now we're just reusing the sys_enter prog, and if it
3471 * already has an augmenter, we don't need to find one.
3472 */
3473 if (sc->bpf_prog.sys_enter != trace->syscalls.unaugmented_prog)
3474 continue;
3475
3476 /*
3477 * Look at all the other syscalls for one that has a signature
3478 * that is close enough that we can share:
3479 */
3480 pair_prog = trace__find_usable_bpf_prog_entry(trace, sc);
3481 if (pair_prog == NULL)
3482 continue;
3483
3484 sc->bpf_prog.sys_enter = pair_prog;
3485
3486 /*
3487 * Update the BPF_MAP_TYPE_PROG_SHARED for raw_syscalls:sys_enter
3488 * with the fd for the program we're reusing:
3489 */
3490 prog_fd = bpf_program__fd(sc->bpf_prog.sys_enter);
3491 err = bpf_map_update_elem(map_enter_fd, &key, &prog_fd, BPF_ANY);
3492 if (err)
3493 break;
3494 }
3495
3496
Arnaldo Carvalho de Melo3803a222019-07-16 11:27:03 -03003497 return err;
3498}
Arnaldo Carvalho de Melo8bd436b2019-10-02 12:54:07 -03003499
3500static void trace__delete_augmented_syscalls(struct trace *trace)
3501{
3502 struct evsel *evsel, *tmp;
3503
3504 evlist__remove(trace->evlist, trace->syscalls.events.augmented);
3505 evsel__delete(trace->syscalls.events.augmented);
3506 trace->syscalls.events.augmented = NULL;
3507
3508 evlist__for_each_entry_safe(trace->evlist, tmp, evsel) {
3509 if (evsel->bpf_obj == trace->bpf_obj) {
3510 evlist__remove(trace->evlist, evsel);
3511 evsel__delete(evsel);
3512 }
3513
3514 }
3515
3516 bpf_object__close(trace->bpf_obj);
3517 trace->bpf_obj = NULL;
3518}
3519#else // HAVE_LIBBPF_SUPPORT
Arnaldo Carvalho de Melob27b38e2018-12-12 13:39:24 -03003520static int trace__set_ev_qualifier_bpf_filter(struct trace *trace __maybe_unused)
3521{
3522 return 0;
3523}
3524
3525static int trace__init_syscalls_bpf_map(struct trace *trace __maybe_unused)
3526{
3527 return 0;
3528}
Arnaldo Carvalho de Melo5834da72019-07-15 17:51:43 -03003529
3530static struct bpf_program *trace__find_bpf_program_by_title(struct trace *trace __maybe_unused,
3531 const char *name __maybe_unused)
3532{
3533 return NULL;
3534}
Arnaldo Carvalho de Melo3803a222019-07-16 11:27:03 -03003535
3536static int trace__init_syscalls_bpf_prog_array_maps(struct trace *trace __maybe_unused)
3537{
3538 return 0;
3539}
Arnaldo Carvalho de Melo8bd436b2019-10-02 12:54:07 -03003540
3541static void trace__delete_augmented_syscalls(struct trace *trace __maybe_unused)
3542{
3543}
Arnaldo Carvalho de Melob27b38e2018-12-12 13:39:24 -03003544#endif // HAVE_LIBBPF_SUPPORT
3545
Arnaldo Carvalho de Melo8bd436b2019-10-02 12:54:07 -03003546static bool trace__only_augmented_syscalls_evsels(struct trace *trace)
3547{
3548 struct evsel *evsel;
3549
3550 evlist__for_each_entry(trace->evlist, evsel) {
3551 if (evsel == trace->syscalls.events.augmented ||
3552 evsel->bpf_obj == trace->bpf_obj)
3553 continue;
3554
3555 return false;
3556 }
3557
3558 return true;
3559}
3560
Arnaldo Carvalho de Melo246fbe02018-12-12 11:06:53 -03003561static int trace__set_ev_qualifier_filter(struct trace *trace)
3562{
Arnaldo Carvalho de Melob27b38e2018-12-12 13:39:24 -03003563 if (trace->syscalls.map)
3564 return trace__set_ev_qualifier_bpf_filter(trace);
Arnaldo Carvalho de Melof76214f2018-12-19 10:01:20 -03003565 if (trace->syscalls.events.sys_enter)
3566 return trace__set_ev_qualifier_tp_filter(trace);
3567 return 0;
Arnaldo Carvalho de Melo246fbe02018-12-12 11:06:53 -03003568}
3569
Arnaldo Carvalho de Meloa9964c42018-11-07 10:08:00 -03003570static int bpf_map__set_filter_pids(struct bpf_map *map __maybe_unused,
3571 size_t npids __maybe_unused, pid_t *pids __maybe_unused)
3572{
3573 int err = 0;
3574#ifdef HAVE_LIBBPF_SUPPORT
3575 bool value = true;
3576 int map_fd = bpf_map__fd(map);
3577 size_t i;
3578
3579 for (i = 0; i < npids; ++i) {
3580 err = bpf_map_update_elem(map_fd, &pids[i], &value, BPF_ANY);
3581 if (err)
3582 break;
3583 }
3584#endif
3585 return err;
3586}
3587
Arnaldo Carvalho de Melodd1a5032017-07-20 11:17:51 -03003588static int trace__set_filter_loop_pids(struct trace *trace)
3589{
Arnaldo Carvalho de Meloa9964c42018-11-07 10:08:00 -03003590 unsigned int nr = 1, err;
Arnaldo Carvalho de Melodd1a5032017-07-20 11:17:51 -03003591 pid_t pids[32] = {
3592 getpid(),
3593 };
Arnaldo Carvalho de Melo082ab9a2017-07-20 11:32:05 -03003594 struct thread *thread = machine__find_thread(trace->host, pids[0], pids[0]);
3595
3596 while (thread && nr < ARRAY_SIZE(pids)) {
3597 struct thread *parent = machine__find_thread(trace->host, thread->ppid, thread->ppid);
3598
3599 if (parent == NULL)
3600 break;
3601
Arnaldo Carvalho de Meloca2da702019-02-12 13:51:49 -03003602 if (!strcmp(thread__comm_str(parent), "sshd") ||
3603 strstarts(thread__comm_str(parent), "gnome-terminal")) {
Arnaldo Carvalho de Melo082ab9a2017-07-20 11:32:05 -03003604 pids[nr++] = parent->tid;
3605 break;
3606 }
3607 thread = parent;
3608 }
Arnaldo Carvalho de Melodd1a5032017-07-20 11:17:51 -03003609
Arnaldo Carvalho de Melod4097f12019-10-08 07:33:08 -03003610 err = perf_evlist__append_tp_filter_pids(trace->evlist, nr, pids);
Arnaldo Carvalho de Meloa9964c42018-11-07 10:08:00 -03003611 if (!err && trace->filter_pids.map)
3612 err = bpf_map__set_filter_pids(trace->filter_pids.map, nr, pids);
3613
3614 return err;
3615}
3616
3617static int trace__set_filter_pids(struct trace *trace)
3618{
3619 int err = 0;
3620 /*
3621 * Better not use !target__has_task() here because we need to cover the
3622 * case where no threads were specified in the command line, but a
3623 * workload was, and in that case we will fill in the thread_map when
3624 * we fork the workload in perf_evlist__prepare_workload.
3625 */
3626 if (trace->filter_pids.nr > 0) {
Arnaldo Carvalho de Melod4097f12019-10-08 07:33:08 -03003627 err = perf_evlist__append_tp_filter_pids(trace->evlist, trace->filter_pids.nr,
3628 trace->filter_pids.entries);
Arnaldo Carvalho de Meloa9964c42018-11-07 10:08:00 -03003629 if (!err && trace->filter_pids.map) {
3630 err = bpf_map__set_filter_pids(trace->filter_pids.map, trace->filter_pids.nr,
3631 trace->filter_pids.entries);
3632 }
Jiri Olsaa2f354e2019-08-22 13:11:41 +02003633 } else if (perf_thread_map__pid(trace->evlist->core.threads, 0) == -1) {
Arnaldo Carvalho de Meloa9964c42018-11-07 10:08:00 -03003634 err = trace__set_filter_loop_pids(trace);
3635 }
3636
3637 return err;
Arnaldo Carvalho de Melodd1a5032017-07-20 11:17:51 -03003638}
3639
Arnaldo Carvalho de Melo7ba61522018-12-10 16:09:51 -03003640static int __trace__deliver_event(struct trace *trace, union perf_event *event)
Jiri Olsa1f44b3e2018-12-05 17:05:08 +01003641{
Jiri Olsa63503db2019-07-21 13:23:52 +02003642 struct evlist *evlist = trace->evlist;
Jiri Olsa1f44b3e2018-12-05 17:05:08 +01003643 struct perf_sample sample;
3644 int err;
3645
3646 err = perf_evlist__parse_sample(evlist, event, &sample);
3647 if (err)
3648 fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err);
3649 else
3650 trace__handle_event(trace, event, &sample);
3651
3652 return 0;
3653}
3654
Arnaldo Carvalho de Meloa761a8d2018-12-10 16:27:33 -03003655static int __trace__flush_events(struct trace *trace)
Jiri Olsa028713a2018-12-05 17:05:09 +01003656{
3657 u64 first = ordered_events__first_time(&trace->oe.data);
3658 u64 flush = trace->oe.last - NSEC_PER_SEC;
3659
3660 /* Is there some thing to flush.. */
3661 if (first && first < flush)
3662 return ordered_events__flush_time(&trace->oe.data, flush);
3663
3664 return 0;
3665}
3666
Arnaldo Carvalho de Meloa761a8d2018-12-10 16:27:33 -03003667static int trace__flush_events(struct trace *trace)
3668{
3669 return !trace->sort_events ? 0 : __trace__flush_events(trace);
3670}
3671
Arnaldo Carvalho de Melo7ba61522018-12-10 16:09:51 -03003672static int trace__deliver_event(struct trace *trace, union perf_event *event)
Jiri Olsa028713a2018-12-05 17:05:09 +01003673{
Jiri Olsa028713a2018-12-05 17:05:09 +01003674 int err;
3675
Arnaldo Carvalho de Meloa761a8d2018-12-10 16:27:33 -03003676 if (!trace->sort_events)
3677 return __trace__deliver_event(trace, event);
3678
3679 err = perf_evlist__parse_sample_timestamp(trace->evlist, event, &trace->oe.last);
Jiri Olsa028713a2018-12-05 17:05:09 +01003680 if (err && err != -1)
3681 return err;
3682
3683 err = ordered_events__queue(&trace->oe.data, event, trace->oe.last, 0);
3684 if (err)
3685 return err;
3686
Arnaldo Carvalho de Melo7ba61522018-12-10 16:09:51 -03003687 return trace__flush_events(trace);
Jiri Olsa028713a2018-12-05 17:05:09 +01003688}
3689
3690static int ordered_events__deliver_event(struct ordered_events *oe,
3691 struct ordered_event *event)
3692{
3693 struct trace *trace = container_of(oe, struct trace, oe.data);
3694
Arnaldo Carvalho de Melo7ba61522018-12-10 16:09:51 -03003695 return __trace__deliver_event(trace, event->event);
Jiri Olsa028713a2018-12-05 17:05:09 +01003696}
3697
Arnaldo Carvalho de Melo90df0242019-10-09 16:22:16 -03003698static struct syscall_arg_fmt *perf_evsel__syscall_arg_fmt(struct evsel *evsel, char *arg)
3699{
3700 struct tep_format_field *field;
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -03003701 struct syscall_arg_fmt *fmt = __evsel__syscall_arg_fmt(evsel);
Arnaldo Carvalho de Melo90df0242019-10-09 16:22:16 -03003702
3703 if (evsel->tp_format == NULL || fmt == NULL)
3704 return NULL;
3705
3706 for (field = evsel->tp_format->format.fields; field; field = field->next, ++fmt)
3707 if (strcmp(field->name, arg) == 0)
3708 return fmt;
3709
3710 return NULL;
3711}
3712
3713static int trace__expand_filter(struct trace *trace __maybe_unused, struct evsel *evsel)
3714{
3715 char *tok, *left = evsel->filter, *new_filter = evsel->filter;
3716
3717 while ((tok = strpbrk(left, "=<>!")) != NULL) {
3718 char *right = tok + 1, *right_end;
3719
3720 if (*right == '=')
3721 ++right;
3722
3723 while (isspace(*right))
3724 ++right;
3725
3726 if (*right == '\0')
3727 break;
3728
3729 while (!isalpha(*left))
3730 if (++left == tok) {
3731 /*
3732 * Bail out, can't find the name of the argument that is being
3733 * used in the filter, let it try to set this filter, will fail later.
3734 */
3735 return 0;
3736 }
3737
3738 right_end = right + 1;
Arnaldo Carvalho de Melo154c9782019-10-19 15:17:30 -03003739 while (isalnum(*right_end) || *right_end == '_' || *right_end == '|')
Arnaldo Carvalho de Melo90df0242019-10-09 16:22:16 -03003740 ++right_end;
3741
3742 if (isalpha(*right)) {
3743 struct syscall_arg_fmt *fmt;
3744 int left_size = tok - left,
3745 right_size = right_end - right;
3746 char arg[128];
3747
3748 while (isspace(left[left_size - 1]))
3749 --left_size;
3750
3751 scnprintf(arg, sizeof(arg), "%.*s", left_size, left);
3752
3753 fmt = perf_evsel__syscall_arg_fmt(evsel, arg);
3754 if (fmt == NULL) {
Arnaldo Carvalho de Melo3cdc8db2019-10-17 16:41:34 -03003755 pr_err("\"%s\" not found in \"%s\", can't set filter \"%s\"\n",
3756 arg, evsel->name, evsel->filter);
Arnaldo Carvalho de Melo90df0242019-10-09 16:22:16 -03003757 return -1;
3758 }
3759
3760 pr_debug2("trying to expand \"%s\" \"%.*s\" \"%.*s\" -> ",
3761 arg, (int)(right - tok), tok, right_size, right);
3762
3763 if (fmt->strtoul) {
3764 u64 val;
Arnaldo Carvalho de Melo9afec872019-10-18 11:15:55 -03003765 struct syscall_arg syscall_arg = {
3766 .parm = fmt->parm,
3767 };
3768
3769 if (fmt->strtoul(right, right_size, &syscall_arg, &val)) {
Arnaldo Carvalho de Melo90df0242019-10-09 16:22:16 -03003770 char *n, expansion[19];
3771 int expansion_lenght = scnprintf(expansion, sizeof(expansion), "%#" PRIx64, val);
3772 int expansion_offset = right - new_filter;
3773
3774 pr_debug("%s", expansion);
3775
3776 if (asprintf(&n, "%.*s%s%s", expansion_offset, new_filter, expansion, right_end) < 0) {
3777 pr_debug(" out of memory!\n");
3778 free(new_filter);
3779 return -1;
3780 }
3781 if (new_filter != evsel->filter)
3782 free(new_filter);
3783 left = n + expansion_offset + expansion_lenght;
3784 new_filter = n;
3785 } else {
3786 pr_err("\"%.*s\" not found for \"%s\" in \"%s\", can't set filter \"%s\"\n",
3787 right_size, right, arg, evsel->name, evsel->filter);
3788 return -1;
3789 }
3790 } else {
3791 pr_err("No resolver (strtoul) for \"%s\" in \"%s\", can't set filter \"%s\"\n",
3792 arg, evsel->name, evsel->filter);
3793 return -1;
3794 }
3795
3796 pr_debug("\n");
3797 } else {
3798 left = right_end;
3799 }
3800 }
3801
3802 if (new_filter != evsel->filter) {
3803 pr_debug("New filter for %s: %s\n", evsel->name, new_filter);
3804 perf_evsel__set_filter(evsel, new_filter);
3805 free(new_filter);
3806 }
3807
3808 return 0;
3809}
3810
3811static int trace__expand_filters(struct trace *trace, struct evsel **err_evsel)
3812{
3813 struct evlist *evlist = trace->evlist;
3814 struct evsel *evsel;
3815
3816 evlist__for_each_entry(evlist, evsel) {
3817 if (evsel->filter == NULL)
3818 continue;
3819
3820 if (trace__expand_filter(trace, evsel)) {
3821 *err_evsel = evsel;
3822 return -1;
3823 }
3824 }
3825
3826 return 0;
3827}
3828
Namhyung Kimf15eb532012-10-05 14:02:16 +09003829static int trace__run(struct trace *trace, int argc, const char **argv)
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03003830{
Jiri Olsa63503db2019-07-21 13:23:52 +02003831 struct evlist *evlist = trace->evlist;
Jiri Olsa32dcd022019-07-21 13:23:51 +02003832 struct evsel *evsel, *pgfault_maj = NULL, *pgfault_min = NULL;
Arnaldo Carvalho de Meloefd57452012-10-17 17:09:46 -03003833 int err = -1, i;
3834 unsigned long before;
Namhyung Kimf15eb532012-10-05 14:02:16 +09003835 const bool forks = argc > 0;
Arnaldo Carvalho de Melo46fb3c22014-09-22 14:39:48 -03003836 bool draining = false;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03003837
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03003838 trace->live = true;
3839
Arnaldo Carvalho de Melo0df50e02018-12-12 13:47:40 -03003840 if (!trace->raw_augmented_syscalls) {
3841 if (trace->trace_syscalls && trace__add_syscall_newtp(trace))
3842 goto out_error_raw_syscalls;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03003843
Arnaldo Carvalho de Melo0df50e02018-12-12 13:47:40 -03003844 if (trace->trace_syscalls)
Jiri Olsaa1cf3a72019-07-21 13:23:59 +02003845 trace->vfs_getname = evlist__add_vfs_getname(evlist);
Arnaldo Carvalho de Melo0df50e02018-12-12 13:47:40 -03003846 }
Arnaldo Carvalho de Meloc5227392013-09-27 18:06:19 -03003847
Arnaldo Carvalho de Melo0ae537c2016-04-19 16:00:01 -03003848 if ((trace->trace_pgfaults & TRACE_PFMAJ)) {
3849 pgfault_maj = perf_evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MAJ);
3850 if (pgfault_maj == NULL)
3851 goto out_error_mem;
Arnaldo Carvalho de Melo08e26392018-01-12 13:29:05 -03003852 perf_evsel__config_callchain(pgfault_maj, &trace->opts, &callchain_param);
Jiri Olsaa1cf3a72019-07-21 13:23:59 +02003853 evlist__add(evlist, pgfault_maj);
Arnaldo Carvalho de Meloe2726d92015-01-22 10:34:22 -03003854 }
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04003855
Arnaldo Carvalho de Melo0ae537c2016-04-19 16:00:01 -03003856 if ((trace->trace_pgfaults & TRACE_PFMIN)) {
3857 pgfault_min = perf_evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MIN);
3858 if (pgfault_min == NULL)
3859 goto out_error_mem;
Arnaldo Carvalho de Melo08e26392018-01-12 13:29:05 -03003860 perf_evsel__config_callchain(pgfault_min, &trace->opts, &callchain_param);
Jiri Olsaa1cf3a72019-07-21 13:23:59 +02003861 evlist__add(evlist, pgfault_min);
Arnaldo Carvalho de Melo0ae537c2016-04-19 16:00:01 -03003862 }
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04003863
Arnaldo Carvalho de Melo1302d882012-10-17 17:13:12 -03003864 if (trace->sched &&
Arnaldo Carvalho de Melo2cc990b2015-01-22 11:13:43 -03003865 perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime",
3866 trace__sched_stat_runtime))
3867 goto out_error_sched_stat_runtime;
Arnaldo Carvalho de Melo9ea42ba2018-03-06 16:30:51 -03003868 /*
3869 * If a global cgroup was set, apply it to all the events without an
3870 * explicit cgroup. I.e.:
3871 *
3872 * trace -G A -e sched:*switch
3873 *
3874 * Will set all raw_syscalls:sys_{enter,exit}, pgfault, vfs_getname, etc
3875 * _and_ sched:sched_switch to the 'A' cgroup, while:
3876 *
3877 * trace -e sched:*switch -G A
3878 *
3879 * will only set the sched:sched_switch event to the 'A' cgroup, all the
3880 * other events (raw_syscalls:sys_{enter,exit}, etc are left "without"
3881 * a cgroup (on the root cgroup, sys wide, etc).
3882 *
3883 * Multiple cgroups:
3884 *
3885 * trace -G A -e sched:*switch -G B
3886 *
3887 * the syscall ones go to the 'A' cgroup, the sched:sched_switch goes
3888 * to the 'B' cgroup.
3889 *
3890 * evlist__set_default_cgroup() grabs a reference of the passed cgroup
3891 * only for the evsels still without a cgroup, i.e. evsel->cgroup == NULL.
3892 */
3893 if (trace->cgroup)
3894 evlist__set_default_cgroup(trace->evlist, trace->cgroup);
3895
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03003896 err = perf_evlist__create_maps(evlist, &trace->opts.target);
3897 if (err < 0) {
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03003898 fprintf(trace->output, "Problems parsing the target to trace, check your options!\n");
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03003899 goto out_delete_evlist;
3900 }
3901
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03003902 err = trace__symbols_init(trace, evlist);
3903 if (err < 0) {
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03003904 fprintf(trace->output, "Problems initializing symbol libraries!\n");
Arnaldo Carvalho de Melo03ad9742014-01-03 15:56:06 -03003905 goto out_delete_evlist;
Arnaldo Carvalho de Melo752fde42012-10-06 18:43:19 -03003906 }
3907
Arnaldo Carvalho de Melo75d50112018-01-15 10:39:55 -03003908 perf_evlist__config(evlist, &trace->opts, &callchain_param);
Arnaldo Carvalho de Melofde54b72016-04-11 18:42:37 -03003909
Namhyung Kimf15eb532012-10-05 14:02:16 +09003910 signal(SIGCHLD, sig_handler);
3911 signal(SIGINT, sig_handler);
3912
3913 if (forks) {
Namhyung Kim6ef73ec2013-03-11 16:43:15 +09003914 err = perf_evlist__prepare_workload(evlist, &trace->opts.target,
Arnaldo Carvalho de Melo735f7e02014-01-03 14:56:49 -03003915 argv, false, NULL);
Namhyung Kimf15eb532012-10-05 14:02:16 +09003916 if (err < 0) {
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03003917 fprintf(trace->output, "Couldn't run the workload!\n");
Arnaldo Carvalho de Melo03ad9742014-01-03 15:56:06 -03003918 goto out_delete_evlist;
Namhyung Kimf15eb532012-10-05 14:02:16 +09003919 }
3920 }
3921
Jiri Olsa474ddc42019-07-21 13:24:06 +02003922 err = evlist__open(evlist);
Arnaldo Carvalho de Meloa8f23d82013-10-17 17:38:29 -03003923 if (err < 0)
3924 goto out_error_open;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03003925
Wang Nanba504232016-02-26 09:31:54 +00003926 err = bpf__apply_obj_config();
3927 if (err) {
3928 char errbuf[BUFSIZ];
3929
3930 bpf__strerror_apply_obj_config(err, errbuf, sizeof(errbuf));
3931 pr_err("ERROR: Apply config to BPF failed: %s\n",
3932 errbuf);
3933 goto out_error_open;
3934 }
3935
Arnaldo Carvalho de Meloa9964c42018-11-07 10:08:00 -03003936 err = trace__set_filter_pids(trace);
Arnaldo Carvalho de Melo94ad89b2015-07-03 17:42:03 -03003937 if (err < 0)
3938 goto out_error_mem;
3939
Arnaldo Carvalho de Melob27b38e2018-12-12 13:39:24 -03003940 if (trace->syscalls.map)
3941 trace__init_syscalls_bpf_map(trace);
3942
Arnaldo Carvalho de Melo3803a222019-07-16 11:27:03 -03003943 if (trace->syscalls.prog_array.sys_enter)
3944 trace__init_syscalls_bpf_prog_array_maps(trace);
3945
Arnaldo Carvalho de Melo19867b62015-07-04 12:44:59 -03003946 if (trace->ev_qualifier_ids.nr > 0) {
3947 err = trace__set_ev_qualifier_filter(trace);
3948 if (err < 0)
3949 goto out_errno;
Arnaldo Carvalho de Melo19867b62015-07-04 12:44:59 -03003950
Arnaldo Carvalho de Melo0df50e02018-12-12 13:47:40 -03003951 if (trace->syscalls.events.sys_exit) {
3952 pr_debug("event qualifier tracepoint filter: %s\n",
3953 trace->syscalls.events.sys_exit->filter);
3954 }
Arnaldo Carvalho de Melo2e5e5f82015-08-03 17:12:29 -03003955 }
Arnaldo Carvalho de Melo19867b62015-07-04 12:44:59 -03003956
Arnaldo Carvalho de Melo79d725c2019-07-16 16:56:49 -03003957 /*
3958 * If the "close" syscall is not traced, then we will not have the
3959 * opportunity to, in syscall_arg__scnprintf_close_fd() invalidate the
3960 * fd->pathname table and were ending up showing the last value set by
3961 * syscalls opening a pathname and associating it with a descriptor or
3962 * reading it from /proc/pid/fd/ in cases where that doesn't make
3963 * sense.
3964 *
3965 * So just disable this beautifier (SCA_FD, SCA_FDAT) when 'close' is
3966 * not in use.
3967 */
3968 trace->fd_path_disabled = !trace__syscall_enabled(trace, syscalltbl__id(trace->sctbl, "close"));
3969
Arnaldo Carvalho de Melo90df0242019-10-09 16:22:16 -03003970 err = trace__expand_filters(trace, &evsel);
3971 if (err)
3972 goto out_delete_evlist;
Arnaldo Carvalho de Melo94ad89b2015-07-03 17:42:03 -03003973 err = perf_evlist__apply_filters(evlist, &evsel);
3974 if (err < 0)
3975 goto out_error_apply_filters;
Arnaldo Carvalho de Melo241b0572015-02-21 10:15:21 -08003976
Arnaldo Carvalho de Meloff7a4f92019-02-19 16:17:33 -03003977 if (trace->dump.map)
3978 bpf_map__fprintf(trace->dump.map, trace->output);
3979
Jiri Olsa9521b5f2019-07-28 12:45:35 +02003980 err = evlist__mmap(evlist, trace->opts.mmap_pages);
Arnaldo Carvalho de Meloe09b18d2014-12-11 18:04:10 -03003981 if (err < 0)
3982 goto out_error_mmap;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03003983
Alexis Berlemonte36b7822016-10-10 07:43:28 +02003984 if (!target__none(&trace->opts.target) && !trace->opts.initial_delay)
Jiri Olsa1c87f162019-07-21 13:24:08 +02003985 evlist__enable(evlist);
Arnaldo Carvalho de Melocb24d012015-04-22 10:04:23 -03003986
Namhyung Kimf15eb532012-10-05 14:02:16 +09003987 if (forks)
3988 perf_evlist__start_workload(evlist);
3989
Alexis Berlemonte36b7822016-10-10 07:43:28 +02003990 if (trace->opts.initial_delay) {
3991 usleep(trace->opts.initial_delay * 1000);
Jiri Olsa1c87f162019-07-21 13:24:08 +02003992 evlist__enable(evlist);
Alexis Berlemonte36b7822016-10-10 07:43:28 +02003993 }
3994
Jiri Olsaa2f354e2019-08-22 13:11:41 +02003995 trace->multiple_threads = perf_thread_map__pid(evlist->core.threads, 0) == -1 ||
Jiri Olsa03617c22019-07-21 13:24:42 +02003996 evlist->core.threads->nr > 1 ||
Jiri Olsa515dbe42019-09-03 10:39:52 +02003997 evlist__first(evlist)->core.attr.inherit;
Arnaldo Carvalho de Melobd3dda92018-01-15 11:33:53 -03003998
3999 /*
Jiri Olsa1fc632c2019-07-21 13:24:29 +02004000 * Now that we already used evsel->core.attr to ask the kernel to setup the
4001 * events, lets reuse evsel->core.attr.sample_max_stack as the limit in
Arnaldo Carvalho de Melobd3dda92018-01-15 11:33:53 -03004002 * trace__resolve_callchain(), allowing per-event max-stack settings
Ingo Molnaradba1632018-12-03 11:22:00 +01004003 * to override an explicitly set --max-stack global setting.
Arnaldo Carvalho de Melobd3dda92018-01-15 11:33:53 -03004004 */
4005 evlist__for_each_entry(evlist, evsel) {
Arnaldo Carvalho de Melo27de9b22018-05-28 16:00:29 -03004006 if (evsel__has_callchain(evsel) &&
Jiri Olsa1fc632c2019-07-21 13:24:29 +02004007 evsel->core.attr.sample_max_stack == 0)
4008 evsel->core.attr.sample_max_stack = trace->max_stack;
Arnaldo Carvalho de Melobd3dda92018-01-15 11:33:53 -03004009 }
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004010again:
Arnaldo Carvalho de Meloefd57452012-10-17 17:09:46 -03004011 before = trace->nr_events;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004012
Jiri Olsac976ee12019-07-30 13:04:59 +02004013 for (i = 0; i < evlist->core.nr_mmaps; i++) {
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004014 union perf_event *event;
Jiri Olsaa5830532019-07-27 20:30:53 +02004015 struct mmap *md;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004016
Kan Liangd7f55c62018-03-01 18:08:59 -05004017 md = &evlist->mmap[i];
Jiri Olsa7c4d4182019-10-07 14:53:18 +02004018 if (perf_mmap__read_init(&md->core) < 0)
Kan Liangd7f55c62018-03-01 18:08:59 -05004019 continue;
4020
Jiri Olsa151ed5d2019-10-07 14:53:20 +02004021 while ((event = perf_mmap__read_event(&md->core)) != NULL) {
Arnaldo Carvalho de Meloefd57452012-10-17 17:09:46 -03004022 ++trace->nr_events;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004023
Arnaldo Carvalho de Melo7ba61522018-12-10 16:09:51 -03004024 err = trace__deliver_event(trace, event);
Jiri Olsa028713a2018-12-05 17:05:09 +01004025 if (err)
4026 goto out_disable;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004027
Jiri Olsa7728fa02019-10-07 14:53:17 +02004028 perf_mmap__consume(&md->core);
Arnaldo Carvalho de Melo20c5f102013-09-03 11:55:07 -03004029
Arnaldo Carvalho de Meloba209f82013-10-16 11:57:33 -03004030 if (interrupted)
4031 goto out_disable;
Arnaldo Carvalho de Melo02ac5422015-04-22 11:11:57 -03004032
4033 if (done && !draining) {
Jiri Olsae74676d2019-07-21 13:24:09 +02004034 evlist__disable(evlist);
Arnaldo Carvalho de Melo02ac5422015-04-22 11:11:57 -03004035 draining = true;
4036 }
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004037 }
Jiri Olsa32fdc2c2019-10-07 14:53:19 +02004038 perf_mmap__read_done(&md->core);
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004039 }
4040
Arnaldo Carvalho de Meloefd57452012-10-17 17:09:46 -03004041 if (trace->nr_events == before) {
Arnaldo Carvalho de Meloba209f82013-10-16 11:57:33 -03004042 int timeout = done ? 100 : -1;
Namhyung Kimf15eb532012-10-05 14:02:16 +09004043
Jiri Olsa80ab2982019-08-31 22:48:33 +02004044 if (!draining && evlist__poll(evlist, timeout) > 0) {
Jiri Olsaf4009e72019-08-16 16:00:45 +02004045 if (evlist__filter_pollfd(evlist, POLLERR | POLLHUP | POLLNVAL) == 0)
Arnaldo Carvalho de Melo46fb3c22014-09-22 14:39:48 -03004046 draining = true;
4047
Arnaldo Carvalho de Meloba209f82013-10-16 11:57:33 -03004048 goto again;
Jiri Olsa028713a2018-12-05 17:05:09 +01004049 } else {
Arnaldo Carvalho de Melo7ba61522018-12-10 16:09:51 -03004050 if (trace__flush_events(trace))
Jiri Olsa028713a2018-12-05 17:05:09 +01004051 goto out_disable;
Arnaldo Carvalho de Melo46fb3c22014-09-22 14:39:48 -03004052 }
Arnaldo Carvalho de Meloba209f82013-10-16 11:57:33 -03004053 } else {
4054 goto again;
Namhyung Kimf15eb532012-10-05 14:02:16 +09004055 }
4056
Arnaldo Carvalho de Meloba209f82013-10-16 11:57:33 -03004057out_disable:
Arnaldo Carvalho de Melof3b623b2015-03-02 22:21:35 -03004058 thread__zput(trace->current);
4059
Jiri Olsae74676d2019-07-21 13:24:09 +02004060 evlist__disable(evlist);
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004061
Arnaldo Carvalho de Meloa761a8d2018-12-10 16:27:33 -03004062 if (trace->sort_events)
4063 ordered_events__flush(&trace->oe.data, OE_FLUSH__FINAL);
Jiri Olsa028713a2018-12-05 17:05:09 +01004064
Arnaldo Carvalho de Meloc5227392013-09-27 18:06:19 -03004065 if (!err) {
4066 if (trace->summary)
4067 trace__fprintf_thread_summary(trace, trace->output);
4068
4069 if (trace->show_tool_stats) {
4070 fprintf(trace->output, "Stats:\n "
4071 " vfs_getname : %" PRIu64 "\n"
4072 " proc_getname: %" PRIu64 "\n",
4073 trace->stats.vfs_getname,
4074 trace->stats.proc_getname);
4075 }
4076 }
David Ahernbf2575c2013-10-08 21:26:53 -06004077
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004078out_delete_evlist:
Andrei Vagin33974a42017-11-07 16:22:45 -08004079 trace__symbols__exit(trace);
4080
Jiri Olsac12995a2019-07-21 13:23:56 +02004081 evlist__delete(evlist);
Arnaldo Carvalho de Melo9ea42ba2018-03-06 16:30:51 -03004082 cgroup__put(trace->cgroup);
Arnaldo Carvalho de Melo14a052d2015-02-03 12:58:57 -03004083 trace->evlist = NULL;
Arnaldo Carvalho de Melo75b757ca2013-09-24 11:04:32 -03004084 trace->live = false;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004085 return err;
Arnaldo Carvalho de Melo6ef068c2013-10-17 12:07:58 -03004086{
4087 char errbuf[BUFSIZ];
Arnaldo Carvalho de Meloa8f23d82013-10-17 17:38:29 -03004088
Arnaldo Carvalho de Melo2cc990b2015-01-22 11:13:43 -03004089out_error_sched_stat_runtime:
Jiri Olsa988bdb32015-09-02 09:56:35 +02004090 tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime");
Arnaldo Carvalho de Melo2cc990b2015-01-22 11:13:43 -03004091 goto out_error;
4092
Arnaldo Carvalho de Melo801c67b2015-01-22 10:52:55 -03004093out_error_raw_syscalls:
Jiri Olsa988bdb32015-09-02 09:56:35 +02004094 tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)");
Arnaldo Carvalho de Meloa8f23d82013-10-17 17:38:29 -03004095 goto out_error;
4096
Arnaldo Carvalho de Meloe09b18d2014-12-11 18:04:10 -03004097out_error_mmap:
4098 perf_evlist__strerror_mmap(evlist, errno, errbuf, sizeof(errbuf));
4099 goto out_error;
4100
Arnaldo Carvalho de Meloa8f23d82013-10-17 17:38:29 -03004101out_error_open:
4102 perf_evlist__strerror_open(evlist, errno, errbuf, sizeof(errbuf));
4103
4104out_error:
Arnaldo Carvalho de Melo6ef068c2013-10-17 12:07:58 -03004105 fprintf(trace->output, "%s\n", errbuf);
Ramkumar Ramachandra87f91862013-10-04 10:47:31 +05304106 goto out_delete_evlist;
Arnaldo Carvalho de Melo94ad89b2015-07-03 17:42:03 -03004107
4108out_error_apply_filters:
4109 fprintf(trace->output,
4110 "Failed to set filter \"%s\" on event %s with %d (%s)\n",
4111 evsel->filter, perf_evsel__name(evsel), errno,
Arnaldo Carvalho de Meloc8b5f2c2016-07-06 11:56:20 -03004112 str_error_r(errno, errbuf, sizeof(errbuf)));
Arnaldo Carvalho de Melo94ad89b2015-07-03 17:42:03 -03004113 goto out_delete_evlist;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004114}
Arnaldo Carvalho de Melo5ed08da2015-01-22 11:08:04 -03004115out_error_mem:
4116 fprintf(trace->output, "Not enough memory to run!\n");
4117 goto out_delete_evlist;
Arnaldo Carvalho de Melo19867b62015-07-04 12:44:59 -03004118
4119out_errno:
4120 fprintf(trace->output, "errno=%d,%s\n", errno, strerror(errno));
4121 goto out_delete_evlist;
Arnaldo Carvalho de Meloa8f23d82013-10-17 17:38:29 -03004122}
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004123
David Ahern6810fc92013-08-28 22:29:52 -06004124static int trace__replay(struct trace *trace)
4125{
Jiri Olsa32dcd022019-07-21 13:23:51 +02004126 const struct evsel_str_handler handlers[] = {
Arnaldo Carvalho de Meloc5227392013-09-27 18:06:19 -03004127 { "probe:vfs_getname", trace__vfs_getname, },
David Ahern6810fc92013-08-28 22:29:52 -06004128 };
Jiri Olsa8ceb41d2017-01-23 22:07:59 +01004129 struct perf_data data = {
Jiri Olsa2d4f2792019-02-21 10:41:30 +01004130 .path = input_name,
4131 .mode = PERF_DATA_MODE_READ,
4132 .force = trace->force,
Jiri Olsaf5fc14122013-10-15 16:27:32 +02004133 };
David Ahern6810fc92013-08-28 22:29:52 -06004134 struct perf_session *session;
Jiri Olsa32dcd022019-07-21 13:23:51 +02004135 struct evsel *evsel;
David Ahern6810fc92013-08-28 22:29:52 -06004136 int err = -1;
4137
4138 trace->tool.sample = trace__process_sample;
4139 trace->tool.mmap = perf_event__process_mmap;
David Ahern384c6712013-09-22 19:44:58 -06004140 trace->tool.mmap2 = perf_event__process_mmap2;
David Ahern6810fc92013-08-28 22:29:52 -06004141 trace->tool.comm = perf_event__process_comm;
4142 trace->tool.exit = perf_event__process_exit;
4143 trace->tool.fork = perf_event__process_fork;
4144 trace->tool.attr = perf_event__process_attr;
Hari Bathinif3b36142017-03-08 02:11:43 +05304145 trace->tool.tracing_data = perf_event__process_tracing_data;
David Ahern6810fc92013-08-28 22:29:52 -06004146 trace->tool.build_id = perf_event__process_build_id;
Hari Bathinif3b36142017-03-08 02:11:43 +05304147 trace->tool.namespaces = perf_event__process_namespaces;
David Ahern6810fc92013-08-28 22:29:52 -06004148
Jiri Olsa0a8cb852014-07-06 14:18:21 +02004149 trace->tool.ordered_events = true;
David Ahern6810fc92013-08-28 22:29:52 -06004150 trace->tool.ordering_requires_timestamps = true;
4151
4152 /* add tid to output */
4153 trace->multiple_threads = true;
4154
Jiri Olsa8ceb41d2017-01-23 22:07:59 +01004155 session = perf_session__new(&data, false, &trace->tool);
Mamatha Inamdar6ef81c52019-08-22 12:50:49 +05304156 if (IS_ERR(session))
4157 return PTR_ERR(session);
David Ahern6810fc92013-08-28 22:29:52 -06004158
David Ahernaa07df62016-11-25 09:29:52 -07004159 if (trace->opts.target.pid)
4160 symbol_conf.pid_list_str = strdup(trace->opts.target.pid);
4161
4162 if (trace->opts.target.tid)
4163 symbol_conf.tid_list_str = strdup(trace->opts.target.tid);
4164
Namhyung Kim0a7e6d12014-08-12 15:40:45 +09004165 if (symbol__init(&session->header.env) < 0)
Namhyung Kimcb2ffae2014-08-12 15:40:44 +09004166 goto out;
4167
David Ahern8fb598e2013-09-28 13:13:00 -06004168 trace->host = &session->machines.host;
4169
David Ahern6810fc92013-08-28 22:29:52 -06004170 err = perf_session__set_tracepoints_handlers(session, handlers);
4171 if (err)
4172 goto out;
4173
Namhyung Kim003824e2013-11-12 15:25:00 +09004174 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
4175 "raw_syscalls:sys_enter");
David Ahern9aca7f12013-12-04 19:41:39 -07004176 /* older kernels have syscalls tp versus raw_syscalls */
4177 if (evsel == NULL)
4178 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
4179 "syscalls:sys_enter");
David Ahern6810fc92013-08-28 22:29:52 -06004180
Stanislav Fomicheve281a962014-06-26 20:14:28 +04004181 if (evsel &&
Arnaldo Carvalho de Melo63f11c82018-08-02 14:27:09 -03004182 (perf_evsel__init_raw_syscall_tp(evsel, trace__sys_enter) < 0 ||
Stanislav Fomicheve281a962014-06-26 20:14:28 +04004183 perf_evsel__init_sc_tp_ptr_field(evsel, args))) {
Namhyung Kim003824e2013-11-12 15:25:00 +09004184 pr_err("Error during initialize raw_syscalls:sys_enter event\n");
4185 goto out;
4186 }
4187
4188 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
4189 "raw_syscalls:sys_exit");
David Ahern9aca7f12013-12-04 19:41:39 -07004190 if (evsel == NULL)
4191 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
4192 "syscalls:sys_exit");
Stanislav Fomicheve281a962014-06-26 20:14:28 +04004193 if (evsel &&
Arnaldo Carvalho de Melo63f11c82018-08-02 14:27:09 -03004194 (perf_evsel__init_raw_syscall_tp(evsel, trace__sys_exit) < 0 ||
Stanislav Fomicheve281a962014-06-26 20:14:28 +04004195 perf_evsel__init_sc_tp_uint_field(evsel, ret))) {
Namhyung Kim003824e2013-11-12 15:25:00 +09004196 pr_err("Error during initialize raw_syscalls:sys_exit event\n");
David Ahern6810fc92013-08-28 22:29:52 -06004197 goto out;
4198 }
4199
Arnaldo Carvalho de Meloe5cadb92016-06-23 11:26:15 -03004200 evlist__for_each_entry(session->evlist, evsel) {
Jiri Olsa1fc632c2019-07-21 13:24:29 +02004201 if (evsel->core.attr.type == PERF_TYPE_SOFTWARE &&
4202 (evsel->core.attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ||
4203 evsel->core.attr.config == PERF_COUNT_SW_PAGE_FAULTS_MIN ||
4204 evsel->core.attr.config == PERF_COUNT_SW_PAGE_FAULTS))
Stanislav Fomichev1e28fe02014-06-26 20:14:26 +04004205 evsel->handler = trace__pgfault;
4206 }
4207
David Ahern6810fc92013-08-28 22:29:52 -06004208 setup_pager();
4209
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -03004210 err = perf_session__process_events(session);
David Ahern6810fc92013-08-28 22:29:52 -06004211 if (err)
4212 pr_err("Failed to process events, error %d", err);
4213
David Ahernbf2575c2013-10-08 21:26:53 -06004214 else if (trace->summary)
4215 trace__fprintf_thread_summary(trace, trace->output);
4216
David Ahern6810fc92013-08-28 22:29:52 -06004217out:
4218 perf_session__delete(session);
4219
4220 return err;
4221}
4222
Arnaldo Carvalho de Melo1302d882012-10-17 17:13:12 -03004223static size_t trace__fprintf_threads_header(FILE *fp)
4224{
4225 size_t printed;
4226
Pekka Enberg99ff7152013-11-12 16:42:14 +02004227 printed = fprintf(fp, "\n Summary of events:\n\n");
David Ahernbf2575c2013-10-08 21:26:53 -06004228
4229 return printed;
4230}
4231
Arnaldo Carvalho de Melob535d522016-05-04 16:06:26 -03004232DEFINE_RESORT_RB(syscall_stats, a->msecs > b->msecs,
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03004233 struct syscall_stats *stats;
4234 double msecs;
4235 int syscall;
Arnaldo Carvalho de Melob535d522016-05-04 16:06:26 -03004236)
4237{
4238 struct int_node *source = rb_entry(nd, struct int_node, rb_node);
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03004239 struct syscall_stats *stats = source->priv;
Arnaldo Carvalho de Melob535d522016-05-04 16:06:26 -03004240
4241 entry->syscall = source->i;
4242 entry->stats = stats;
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03004243 entry->msecs = stats ? (u64)stats->stats.n * (avg_stats(&stats->stats) / NSEC_PER_MSEC) : 0;
Arnaldo Carvalho de Melob535d522016-05-04 16:06:26 -03004244}
4245
David Ahernbf2575c2013-10-08 21:26:53 -06004246static size_t thread__dump_stats(struct thread_trace *ttrace,
4247 struct trace *trace, FILE *fp)
4248{
David Ahernbf2575c2013-10-08 21:26:53 -06004249 size_t printed = 0;
4250 struct syscall *sc;
Arnaldo Carvalho de Melob535d522016-05-04 16:06:26 -03004251 struct rb_node *nd;
4252 DECLARE_RESORT_RB_INTLIST(syscall_stats, ttrace->syscall_stats);
David Ahernbf2575c2013-10-08 21:26:53 -06004253
Arnaldo Carvalho de Melob535d522016-05-04 16:06:26 -03004254 if (syscall_stats == NULL)
David Ahernbf2575c2013-10-08 21:26:53 -06004255 return 0;
4256
4257 printed += fprintf(fp, "\n");
4258
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03004259 printed += fprintf(fp, " syscall calls errors total min avg max stddev\n");
4260 printed += fprintf(fp, " (msec) (msec) (msec) (msec) (%%)\n");
4261 printed += fprintf(fp, " --------------- -------- ------ -------- --------- --------- --------- ------\n");
Pekka Enberg99ff7152013-11-12 16:42:14 +02004262
Arnaldo Carvalho de Melo98a91832016-06-23 11:34:10 -03004263 resort_rb__for_each_entry(nd, syscall_stats) {
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03004264 struct syscall_stats *stats = syscall_stats_entry->stats;
David Ahernbf2575c2013-10-08 21:26:53 -06004265 if (stats) {
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03004266 double min = (double)(stats->stats.min) / NSEC_PER_MSEC;
4267 double max = (double)(stats->stats.max) / NSEC_PER_MSEC;
4268 double avg = avg_stats(&stats->stats);
David Ahernbf2575c2013-10-08 21:26:53 -06004269 double pct;
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03004270 u64 n = (u64)stats->stats.n;
David Ahernbf2575c2013-10-08 21:26:53 -06004271
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03004272 pct = avg ? 100.0 * stddev_stats(&stats->stats) / avg : 0.0;
David Ahernbf2575c2013-10-08 21:26:53 -06004273 avg /= NSEC_PER_MSEC;
4274
Arnaldo Carvalho de Melob535d522016-05-04 16:06:26 -03004275 sc = &trace->syscalls.table[syscall_stats_entry->syscall];
Pekka Enberg99ff7152013-11-12 16:42:14 +02004276 printed += fprintf(fp, " %-15s", sc->name);
Arnaldo Carvalho de Melo8eded452019-10-14 14:46:40 -03004277 printed += fprintf(fp, " %8" PRIu64 " %6" PRIu64 " %9.3f %9.3f %9.3f",
4278 n, stats->nr_failures, syscall_stats_entry->msecs, min, avg);
Pekka Enberg27a778b2013-11-13 14:21:48 +02004279 printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct);
Arnaldo Carvalho de Melob88b14d2019-10-14 15:32:40 -03004280
4281 if (trace->errno_summary && stats->nr_failures) {
4282 const char *arch_name = perf_env__arch(trace->host->env);
4283 int e;
4284
4285 for (e = 0; e < stats->max_errno; ++e) {
4286 if (stats->errnos[e] != 0)
4287 fprintf(fp, "\t\t\t\t%s: %d\n", arch_syscalls__strerrno(arch_name, e + 1), stats->errnos[e]);
4288 }
4289 }
David Ahernbf2575c2013-10-08 21:26:53 -06004290 }
David Ahernbf2575c2013-10-08 21:26:53 -06004291 }
4292
Arnaldo Carvalho de Melob535d522016-05-04 16:06:26 -03004293 resort_rb__delete(syscall_stats);
David Ahernbf2575c2013-10-08 21:26:53 -06004294 printed += fprintf(fp, "\n\n");
Arnaldo Carvalho de Melo1302d882012-10-17 17:13:12 -03004295
4296 return printed;
4297}
4298
Arnaldo Carvalho de Melo96c14452016-05-04 12:47:16 -03004299static size_t trace__fprintf_thread(FILE *fp, struct thread *thread, struct trace *trace)
David Ahern896cbb52013-09-28 13:12:59 -06004300{
Arnaldo Carvalho de Melo96c14452016-05-04 12:47:16 -03004301 size_t printed = 0;
Namhyung Kim89dceb22014-10-06 09:46:03 +09004302 struct thread_trace *ttrace = thread__priv(thread);
David Ahern896cbb52013-09-28 13:12:59 -06004303 double ratio;
4304
4305 if (ttrace == NULL)
4306 return 0;
4307
4308 ratio = (double)ttrace->nr_events / trace->nr_events * 100.0;
4309
Pekka Enberg15e65c62013-11-14 18:43:30 +02004310 printed += fprintf(fp, " %s (%d), ", thread__comm_str(thread), thread->tid);
Pekka Enberg99ff7152013-11-12 16:42:14 +02004311 printed += fprintf(fp, "%lu events, ", ttrace->nr_events);
Pekka Enberg15e65c62013-11-14 18:43:30 +02004312 printed += fprintf(fp, "%.1f%%", ratio);
Stanislav Fomicheva2ea67d2014-07-08 22:05:16 +04004313 if (ttrace->pfmaj)
4314 printed += fprintf(fp, ", %lu majfaults", ttrace->pfmaj);
4315 if (ttrace->pfmin)
4316 printed += fprintf(fp, ", %lu minfaults", ttrace->pfmin);
Arnaldo Carvalho de Melo03548eb2016-05-05 15:46:50 -03004317 if (trace->sched)
4318 printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms);
4319 else if (fputc('\n', fp) != EOF)
4320 ++printed;
4321
David Ahernbf2575c2013-10-08 21:26:53 -06004322 printed += thread__dump_stats(ttrace, trace, fp);
David Ahern896cbb52013-09-28 13:12:59 -06004323
Arnaldo Carvalho de Melo96c14452016-05-04 12:47:16 -03004324 return printed;
4325}
David Ahern896cbb52013-09-28 13:12:59 -06004326
Arnaldo Carvalho de Melo96c14452016-05-04 12:47:16 -03004327static unsigned long thread__nr_events(struct thread_trace *ttrace)
4328{
4329 return ttrace ? ttrace->nr_events : 0;
4330}
4331
4332DEFINE_RESORT_RB(threads, (thread__nr_events(a->thread->priv) < thread__nr_events(b->thread->priv)),
4333 struct thread *thread;
4334)
4335{
4336 entry->thread = rb_entry(nd, struct thread, rb_node);
David Ahern896cbb52013-09-28 13:12:59 -06004337}
4338
Arnaldo Carvalho de Melo1302d882012-10-17 17:13:12 -03004339static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp)
4340{
Arnaldo Carvalho de Melo96c14452016-05-04 12:47:16 -03004341 size_t printed = trace__fprintf_threads_header(fp);
4342 struct rb_node *nd;
Kan Liang91e467b2017-09-10 19:23:14 -07004343 int i;
Arnaldo Carvalho de Melo1302d882012-10-17 17:13:12 -03004344
Kan Liang91e467b2017-09-10 19:23:14 -07004345 for (i = 0; i < THREADS__TABLE_SIZE; i++) {
4346 DECLARE_RESORT_RB_MACHINE_THREADS(threads, trace->host, i);
4347
4348 if (threads == NULL) {
4349 fprintf(fp, "%s", "Error sorting output by nr_events!\n");
4350 return 0;
4351 }
4352
4353 resort_rb__for_each_entry(nd, threads)
4354 printed += trace__fprintf_thread(fp, threads_entry->thread, trace);
4355
4356 resort_rb__delete(threads);
Arnaldo Carvalho de Melo96c14452016-05-04 12:47:16 -03004357 }
Arnaldo Carvalho de Melo96c14452016-05-04 12:47:16 -03004358 return printed;
Arnaldo Carvalho de Melo1302d882012-10-17 17:13:12 -03004359}
4360
Arnaldo Carvalho de Meloae9ed032012-10-08 09:56:00 -03004361static int trace__set_duration(const struct option *opt, const char *str,
4362 int unset __maybe_unused)
4363{
4364 struct trace *trace = opt->value;
4365
4366 trace->duration_filter = atof(str);
4367 return 0;
4368}
4369
Arnaldo Carvalho de Melo6a0b3ab2018-11-07 09:38:49 -03004370static int trace__set_filter_pids_from_option(const struct option *opt, const char *str,
4371 int unset __maybe_unused)
Arnaldo Carvalho de Melof078c382015-02-21 11:36:52 -08004372{
4373 int ret = -1;
4374 size_t i;
4375 struct trace *trace = opt->value;
4376 /*
4377 * FIXME: introduce a intarray class, plain parse csv and create a
4378 * { int nr, int entries[] } struct...
4379 */
4380 struct intlist *list = intlist__new(str);
4381
4382 if (list == NULL)
4383 return -1;
4384
4385 i = trace->filter_pids.nr = intlist__nr_entries(list) + 1;
4386 trace->filter_pids.entries = calloc(i, sizeof(pid_t));
4387
4388 if (trace->filter_pids.entries == NULL)
4389 goto out;
4390
4391 trace->filter_pids.entries[0] = getpid();
4392
4393 for (i = 1; i < trace->filter_pids.nr; ++i)
4394 trace->filter_pids.entries[i] = intlist__entry(list, i - 1)->i;
4395
4396 intlist__delete(list);
4397 ret = 0;
4398out:
4399 return ret;
4400}
4401
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03004402static int trace__open_output(struct trace *trace, const char *filename)
4403{
4404 struct stat st;
4405
4406 if (!stat(filename, &st) && st.st_size) {
4407 char oldname[PATH_MAX];
4408
4409 scnprintf(oldname, sizeof(oldname), "%s.old", filename);
4410 unlink(oldname);
4411 rename(filename, oldname);
4412 }
4413
4414 trace->output = fopen(filename, "w");
4415
4416 return trace->output == NULL ? -errno : 0;
4417}
4418
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04004419static int parse_pagefaults(const struct option *opt, const char *str,
4420 int unset __maybe_unused)
4421{
4422 int *trace_pgfaults = opt->value;
4423
4424 if (strcmp(str, "all") == 0)
4425 *trace_pgfaults |= TRACE_PFMAJ | TRACE_PFMIN;
4426 else if (strcmp(str, "maj") == 0)
4427 *trace_pgfaults |= TRACE_PFMAJ;
4428 else if (strcmp(str, "min") == 0)
4429 *trace_pgfaults |= TRACE_PFMIN;
4430 else
4431 return -1;
4432
4433 return 0;
4434}
4435
Arnaldo Carvalho de Melo206d6352019-10-01 11:31:59 -03004436static void evlist__set_default_evsel_handler(struct evlist *evlist, void *handler)
Arnaldo Carvalho de Melo14a052d2015-02-03 12:58:57 -03004437{
Jiri Olsa32dcd022019-07-21 13:23:51 +02004438 struct evsel *evsel;
Arnaldo Carvalho de Melo14a052d2015-02-03 12:58:57 -03004439
Arnaldo Carvalho de Melo206d6352019-10-01 11:31:59 -03004440 evlist__for_each_entry(evlist, evsel) {
4441 if (evsel->handler == NULL)
4442 evsel->handler = handler;
4443 }
Arnaldo Carvalho de Melo14a052d2015-02-03 12:58:57 -03004444}
4445
Arnaldo Carvalho de Melo362222f2019-10-17 17:33:08 -03004446static void evsel__set_syscall_arg_fmt(struct evsel *evsel, const char *name)
4447{
4448 struct syscall_arg_fmt *fmt = evsel__syscall_arg_fmt(evsel);
4449
4450 if (fmt) {
4451 struct syscall_fmt *scfmt = syscall_fmt__find(name);
4452
4453 if (scfmt) {
4454 int skip = 0;
4455
4456 if (strcmp(evsel->tp_format->format.fields->name, "__syscall_nr") == 0 ||
4457 strcmp(evsel->tp_format->format.fields->name, "nr") == 0)
4458 ++skip;
4459
4460 memcpy(fmt + skip, scfmt->arg, (evsel->tp_format->format.nr_fields - skip) * sizeof(*fmt));
4461 }
4462 }
4463}
4464
Jiri Olsa63503db2019-07-21 13:23:52 +02004465static int evlist__set_syscall_tp_fields(struct evlist *evlist)
Arnaldo Carvalho de Melod32855f2018-08-02 15:09:24 -03004466{
Jiri Olsa32dcd022019-07-21 13:23:51 +02004467 struct evsel *evsel;
Arnaldo Carvalho de Melod32855f2018-08-02 15:09:24 -03004468
4469 evlist__for_each_entry(evlist, evsel) {
4470 if (evsel->priv || !evsel->tp_format)
4471 continue;
4472
Arnaldo Carvalho de Melo947b8432019-10-03 16:18:22 -03004473 if (strcmp(evsel->tp_format->system, "syscalls")) {
4474 perf_evsel__init_tp_arg_scnprintf(evsel);
Arnaldo Carvalho de Melod32855f2018-08-02 15:09:24 -03004475 continue;
Arnaldo Carvalho de Melo947b8432019-10-03 16:18:22 -03004476 }
Arnaldo Carvalho de Melod32855f2018-08-02 15:09:24 -03004477
4478 if (perf_evsel__init_syscall_tp(evsel))
4479 return -1;
4480
4481 if (!strncmp(evsel->tp_format->name, "sys_enter_", 10)) {
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -03004482 struct syscall_tp *sc = __evsel__syscall_tp(evsel);
Arnaldo Carvalho de Melod32855f2018-08-02 15:09:24 -03004483
4484 if (__tp_field__init_ptr(&sc->args, sc->id.offset + sizeof(u64)))
4485 return -1;
Arnaldo Carvalho de Melo362222f2019-10-17 17:33:08 -03004486
4487 evsel__set_syscall_arg_fmt(evsel, evsel->tp_format->name + sizeof("sys_enter_") - 1);
Arnaldo Carvalho de Melod32855f2018-08-02 15:09:24 -03004488 } else if (!strncmp(evsel->tp_format->name, "sys_exit_", 9)) {
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -03004489 struct syscall_tp *sc = __evsel__syscall_tp(evsel);
Arnaldo Carvalho de Melod32855f2018-08-02 15:09:24 -03004490
4491 if (__tp_field__init_uint(&sc->ret, sizeof(u64), sc->id.offset + sizeof(u64), evsel->needs_swap))
4492 return -1;
Arnaldo Carvalho de Melo362222f2019-10-17 17:33:08 -03004493
4494 evsel__set_syscall_arg_fmt(evsel, evsel->tp_format->name + sizeof("sys_exit_") - 1);
Arnaldo Carvalho de Melod32855f2018-08-02 15:09:24 -03004495 }
4496 }
4497
4498 return 0;
4499}
4500
Arnaldo Carvalho de Melo017037f2017-01-09 17:26:26 -03004501/*
4502 * XXX: Hackish, just splitting the combined -e+--event (syscalls
4503 * (raw_syscalls:{sys_{enter,exit}} + events (tracepoints, HW, SW, etc) to use
4504 * existing facilities unchanged (trace->ev_qualifier + parse_options()).
4505 *
4506 * It'd be better to introduce a parse_options() variant that would return a
4507 * list with the terms it didn't match to an event...
4508 */
4509static int trace__parse_events_option(const struct option *opt, const char *str,
4510 int unset __maybe_unused)
4511{
4512 struct trace *trace = (struct trace *)opt->value;
4513 const char *s = str;
4514 char *sep = NULL, *lists[2] = { NULL, NULL, };
Arnaldo Carvalho de Melo27702bc2017-08-31 11:50:04 -03004515 int len = strlen(str) + 1, err = -1, list, idx;
Arnaldo Carvalho de Melo017037f2017-01-09 17:26:26 -03004516 char *strace_groups_dir = system_path(STRACE_GROUPS_DIR);
4517 char group_name[PATH_MAX];
Arnaldo Carvalho de Melof9321842018-10-25 17:24:45 -03004518 struct syscall_fmt *fmt;
Arnaldo Carvalho de Melo017037f2017-01-09 17:26:26 -03004519
4520 if (strace_groups_dir == NULL)
4521 return -1;
4522
4523 if (*s == '!') {
4524 ++s;
4525 trace->not_ev_qualifier = true;
4526 }
4527
4528 while (1) {
4529 if ((sep = strchr(s, ',')) != NULL)
4530 *sep = '\0';
4531
4532 list = 0;
Arnaldo Carvalho de Melo27702bc2017-08-31 11:50:04 -03004533 if (syscalltbl__id(trace->sctbl, s) >= 0 ||
4534 syscalltbl__strglobmatch_first(trace->sctbl, s, &idx) >= 0) {
Arnaldo Carvalho de Melo017037f2017-01-09 17:26:26 -03004535 list = 1;
Arnaldo Carvalho de Melof9321842018-10-25 17:24:45 -03004536 goto do_concat;
4537 }
4538
4539 fmt = syscall_fmt__find_by_alias(s);
4540 if (fmt != NULL) {
4541 list = 1;
4542 s = fmt->name;
Arnaldo Carvalho de Melo017037f2017-01-09 17:26:26 -03004543 } else {
4544 path__join(group_name, sizeof(group_name), strace_groups_dir, s);
4545 if (access(group_name, R_OK) == 0)
4546 list = 1;
4547 }
Arnaldo Carvalho de Melof9321842018-10-25 17:24:45 -03004548do_concat:
Arnaldo Carvalho de Melo017037f2017-01-09 17:26:26 -03004549 if (lists[list]) {
4550 sprintf(lists[list] + strlen(lists[list]), ",%s", s);
4551 } else {
4552 lists[list] = malloc(len);
4553 if (lists[list] == NULL)
4554 goto out;
4555 strcpy(lists[list], s);
4556 }
4557
4558 if (!sep)
4559 break;
4560
4561 *sep = ',';
4562 s = sep + 1;
4563 }
4564
4565 if (lists[1] != NULL) {
4566 struct strlist_config slist_config = {
4567 .dirname = strace_groups_dir,
4568 };
4569
4570 trace->ev_qualifier = strlist__new(lists[1], &slist_config);
4571 if (trace->ev_qualifier == NULL) {
4572 fputs("Not enough memory to parse event qualifier", trace->output);
4573 goto out;
4574 }
4575
4576 if (trace__validate_ev_qualifier(trace))
4577 goto out;
Arnaldo Carvalho de Melob9128852018-08-01 16:20:28 -03004578 trace->trace_syscalls = true;
Arnaldo Carvalho de Melo017037f2017-01-09 17:26:26 -03004579 }
4580
4581 err = 0;
4582
4583 if (lists[0]) {
4584 struct option o = OPT_CALLBACK('e', "event", &trace->evlist, "event",
4585 "event selector. use 'perf list' to list available events",
4586 parse_events_option);
4587 err = parse_events_option(&o, lists[0], 0);
4588 }
4589out:
4590 if (sep)
4591 *sep = ',';
4592
4593 return err;
4594}
4595
Arnaldo Carvalho de Melo9ea42ba2018-03-06 16:30:51 -03004596static int trace__parse_cgroups(const struct option *opt, const char *str, int unset)
4597{
4598 struct trace *trace = opt->value;
4599
Jiri Olsace9036a2019-07-21 13:24:23 +02004600 if (!list_empty(&trace->evlist->core.entries))
Arnaldo Carvalho de Melo9ea42ba2018-03-06 16:30:51 -03004601 return parse_cgroups(opt, str, unset);
4602
4603 trace->cgroup = evlist__findnew_cgroup(trace->evlist, str);
4604
4605 return 0;
4606}
4607
Arnaldo Carvalho de Melo5ca0b7f2019-07-15 17:03:10 -03004608static struct bpf_map *trace__find_bpf_map_by_name(struct trace *trace, const char *name)
Arnaldo Carvalho de Melo744fafc2018-11-07 10:04:51 -03004609{
Arnaldo Carvalho de Melo5ca0b7f2019-07-15 17:03:10 -03004610 if (trace->bpf_obj == NULL)
4611 return NULL;
Arnaldo Carvalho de Melo744fafc2018-11-07 10:04:51 -03004612
Arnaldo Carvalho de Melo5ca0b7f2019-07-15 17:03:10 -03004613 return bpf_object__find_map_by_name(trace->bpf_obj, name);
Arnaldo Carvalho de Melo744fafc2018-11-07 10:04:51 -03004614}
4615
4616static void trace__set_bpf_map_filtered_pids(struct trace *trace)
4617{
Arnaldo Carvalho de Melo5ca0b7f2019-07-15 17:03:10 -03004618 trace->filter_pids.map = trace__find_bpf_map_by_name(trace, "pids_filtered");
Arnaldo Carvalho de Melo744fafc2018-11-07 10:04:51 -03004619}
4620
Arnaldo Carvalho de Melob27b38e2018-12-12 13:39:24 -03004621static void trace__set_bpf_map_syscalls(struct trace *trace)
4622{
Arnaldo Carvalho de Melo5ca0b7f2019-07-15 17:03:10 -03004623 trace->syscalls.map = trace__find_bpf_map_by_name(trace, "syscalls");
Arnaldo Carvalho de Melo3803a222019-07-16 11:27:03 -03004624 trace->syscalls.prog_array.sys_enter = trace__find_bpf_map_by_name(trace, "syscalls_sys_enter");
4625 trace->syscalls.prog_array.sys_exit = trace__find_bpf_map_by_name(trace, "syscalls_sys_exit");
Arnaldo Carvalho de Melob27b38e2018-12-12 13:39:24 -03004626}
4627
Arnaldo Carvalho de Meloac962872018-12-13 17:30:20 -03004628static int trace__config(const char *var, const char *value, void *arg)
4629{
Arnaldo Carvalho de Meloe7c634f2018-12-14 10:12:09 -03004630 struct trace *trace = arg;
Arnaldo Carvalho de Meloac962872018-12-13 17:30:20 -03004631 int err = 0;
4632
4633 if (!strcmp(var, "trace.add_events")) {
Arnaldo Carvalho de Melo7e035922019-10-01 15:44:44 -03004634 trace->perfconfig_events = strdup(value);
4635 if (trace->perfconfig_events == NULL) {
4636 pr_err("Not enough memory for %s\n", "trace.add_events");
4637 return -1;
4638 }
Arnaldo Carvalho de Melob0361462018-12-14 11:17:19 -03004639 } else if (!strcmp(var, "trace.show_timestamp")) {
4640 trace->show_tstamp = perf_config_bool(var, value);
Arnaldo Carvalho de Melo42e4a522018-12-14 10:22:18 -03004641 } else if (!strcmp(var, "trace.show_duration")) {
4642 trace->show_duration = perf_config_bool(var, value);
Arnaldo Carvalho de Melo9d6dc172018-12-14 11:32:02 -03004643 } else if (!strcmp(var, "trace.show_arg_names")) {
4644 trace->show_arg_names = perf_config_bool(var, value);
4645 if (!trace->show_arg_names)
4646 trace->show_zeros = true;
Arnaldo Carvalho de Meloe7c634f2018-12-14 10:12:09 -03004647 } else if (!strcmp(var, "trace.show_zeros")) {
Arnaldo Carvalho de Melo9d6dc172018-12-14 11:32:02 -03004648 bool new_show_zeros = perf_config_bool(var, value);
4649 if (!trace->show_arg_names && !new_show_zeros) {
4650 pr_warning("trace.show_zeros has to be set when trace.show_arg_names=no\n");
4651 goto out;
4652 }
4653 trace->show_zeros = new_show_zeros;
Arnaldo Carvalho de Meloc65c83f2018-12-14 17:06:47 -03004654 } else if (!strcmp(var, "trace.show_prefix")) {
4655 trace->show_string_prefix = perf_config_bool(var, value);
Arnaldo Carvalho de Melod32de872018-12-14 11:06:16 -03004656 } else if (!strcmp(var, "trace.no_inherit")) {
4657 trace->opts.no_inherit = perf_config_bool(var, value);
Arnaldo Carvalho de Melo9ed45d52018-12-14 13:40:49 -03004658 } else if (!strcmp(var, "trace.args_alignment")) {
4659 int args_alignment = 0;
4660 if (perf_config_int(&args_alignment, var, value) == 0)
4661 trace->args_alignment = args_alignment;
Arnaldo Carvalho de Melof11b2802019-10-04 15:28:13 -03004662 } else if (!strcmp(var, "trace.tracepoint_beautifiers")) {
4663 if (strcasecmp(value, "libtraceevent") == 0)
4664 trace->libtraceevent_print = true;
4665 else if (strcasecmp(value, "libbeauty") == 0)
4666 trace->libtraceevent_print = false;
Arnaldo Carvalho de Meloac962872018-12-13 17:30:20 -03004667 }
Arnaldo Carvalho de Melo9d6dc172018-12-14 11:32:02 -03004668out:
Arnaldo Carvalho de Meloac962872018-12-13 17:30:20 -03004669 return err;
4670}
4671
Arnaldo Carvalho de Melob0ad8ea2017-03-27 11:47:20 -03004672int cmd_trace(int argc, const char **argv)
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004673{
Yunlong Song6fdd9cb2015-03-18 21:35:57 +08004674 const char *trace_usage[] = {
Namhyung Kimf15eb532012-10-05 14:02:16 +09004675 "perf trace [<options>] [<command>]",
4676 "perf trace [<options>] -- <command> [<options>]",
David Ahern5e2485b2013-09-28 13:13:01 -06004677 "perf trace record [<options>] [<command>]",
4678 "perf trace record [<options>] -- <command> [<options>]",
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004679 NULL
4680 };
4681 struct trace trace = {
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004682 .opts = {
4683 .target = {
4684 .uid = UINT_MAX,
4685 .uses_mmap = true,
4686 },
4687 .user_freq = UINT_MAX,
4688 .user_interval = ULLONG_MAX,
Arnaldo Carvalho de Melo509051e2014-01-14 17:52:14 -03004689 .no_buffering = true,
Arnaldo Carvalho de Melo38d54472014-12-12 17:28:32 -03004690 .mmap_pages = UINT_MAX,
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004691 },
Milian Wolff007d66a2015-08-05 16:52:23 -03004692 .output = stderr,
Arnaldo Carvalho de Melo50c95cb2013-09-12 12:35:21 -03004693 .show_comm = true,
Arnaldo Carvalho de Melob0361462018-12-14 11:17:19 -03004694 .show_tstamp = true,
Arnaldo Carvalho de Melo42e4a522018-12-14 10:22:18 -03004695 .show_duration = true,
Arnaldo Carvalho de Melo9d6dc172018-12-14 11:32:02 -03004696 .show_arg_names = true,
Arnaldo Carvalho de Melo9ed45d52018-12-14 13:40:49 -03004697 .args_alignment = 70,
Arnaldo Carvalho de Melob9128852018-08-01 16:20:28 -03004698 .trace_syscalls = false,
Arnaldo Carvalho de Melo44621812016-04-11 15:49:11 -03004699 .kernel_syscallchains = false,
Arnaldo Carvalho de Melo05614992016-04-15 16:41:19 -03004700 .max_stack = UINT_MAX,
Arnaldo Carvalho de Melo5067a8c2018-10-18 16:38:27 -03004701 .max_events = ULONG_MAX,
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004702 };
Arnaldo Carvalho de Meloff7a4f92019-02-19 16:17:33 -03004703 const char *map_dump_str = NULL;
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03004704 const char *output_name = NULL;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004705 const struct option trace_options[] = {
Arnaldo Carvalho de Melo017037f2017-01-09 17:26:26 -03004706 OPT_CALLBACK('e', "event", &trace, "event",
4707 "event/syscall selector. use 'perf list' to list available events",
4708 trace__parse_events_option),
Arnaldo Carvalho de Melod4097f12019-10-08 07:33:08 -03004709 OPT_CALLBACK(0, "filter", &trace.evlist, "filter",
4710 "event filter", parse_filter),
Arnaldo Carvalho de Melo50c95cb2013-09-12 12:35:21 -03004711 OPT_BOOLEAN(0, "comm", &trace.show_comm,
4712 "show the thread COMM next to its id"),
Arnaldo Carvalho de Meloc5227392013-09-27 18:06:19 -03004713 OPT_BOOLEAN(0, "tool_stats", &trace.show_tool_stats, "show tool stats"),
Arnaldo Carvalho de Melo017037f2017-01-09 17:26:26 -03004714 OPT_CALLBACK(0, "expr", &trace, "expr", "list of syscalls/events to trace",
4715 trace__parse_events_option),
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03004716 OPT_STRING('o', "output", &output_name, "file", "output file name"),
David Ahern6810fc92013-08-28 22:29:52 -06004717 OPT_STRING('i', "input", &input_name, "file", "Analyze events in file"),
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004718 OPT_STRING('p', "pid", &trace.opts.target.pid, "pid",
4719 "trace events on existing process id"),
David Ahernac9be8e2013-08-20 11:15:45 -06004720 OPT_STRING('t', "tid", &trace.opts.target.tid, "tid",
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004721 "trace events on existing thread id"),
Arnaldo Carvalho de Melofa0e4ff2015-04-23 11:59:20 -03004722 OPT_CALLBACK(0, "filter-pids", &trace, "CSV list of pids",
Arnaldo Carvalho de Melo6a0b3ab2018-11-07 09:38:49 -03004723 "pids to filter (by the kernel)", trace__set_filter_pids_from_option),
David Ahernac9be8e2013-08-20 11:15:45 -06004724 OPT_BOOLEAN('a', "all-cpus", &trace.opts.target.system_wide,
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004725 "system-wide collection from all CPUs"),
David Ahernac9be8e2013-08-20 11:15:45 -06004726 OPT_STRING('C', "cpu", &trace.opts.target.cpu_list, "cpu",
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004727 "list of cpus to monitor"),
David Ahern6810fc92013-08-28 22:29:52 -06004728 OPT_BOOLEAN(0, "no-inherit", &trace.opts.no_inherit,
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004729 "child tasks do not inherit counters"),
Jiri Olsa994a1f72013-09-01 12:36:12 +02004730 OPT_CALLBACK('m', "mmap-pages", &trace.opts.mmap_pages, "pages",
4731 "number of mmap data pages",
4732 perf_evlist__parse_mmap_pages),
David Ahernac9be8e2013-08-20 11:15:45 -06004733 OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user",
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004734 "user to profile"),
Arnaldo Carvalho de Meloae9ed032012-10-08 09:56:00 -03004735 OPT_CALLBACK(0, "duration", &trace, "float",
4736 "show only events with duration > N.M ms",
4737 trace__set_duration),
Arnaldo Carvalho de Meloff7a4f92019-02-19 16:17:33 -03004738#ifdef HAVE_LIBBPF_SUPPORT
4739 OPT_STRING(0, "map-dump", &map_dump_str, "BPF map", "BPF map to periodically dump"),
4740#endif
Arnaldo Carvalho de Melo1302d882012-10-17 17:13:12 -03004741 OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"),
Arnaldo Carvalho de Melo7c304ee02013-08-22 16:49:54 -03004742 OPT_INCR('v', "verbose", &verbose, "be more verbose"),
David Ahern4bb09192013-09-04 12:37:43 -06004743 OPT_BOOLEAN('T', "time", &trace.full_time,
4744 "Show full timestamp, not time relative to first start"),
Arnaldo Carvalho de Melo0a6545b2018-03-29 12:22:59 -03004745 OPT_BOOLEAN(0, "failure", &trace.failure_only,
4746 "Show only syscalls that failed"),
David Ahernfd2eaba2013-11-12 09:31:15 -07004747 OPT_BOOLEAN('s', "summary", &trace.summary_only,
4748 "Show only syscall summary with statistics"),
4749 OPT_BOOLEAN('S', "with-summary", &trace.summary,
4750 "Show all syscalls and summary with statistics"),
Arnaldo Carvalho de Melob88b14d2019-10-14 15:32:40 -03004751 OPT_BOOLEAN(0, "errno-summary", &trace.errno_summary,
4752 "Show errno stats per syscall, use with -s or -S"),
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04004753 OPT_CALLBACK_DEFAULT('F', "pf", &trace.trace_pgfaults, "all|maj|min",
4754 "Trace pagefaults", parse_pagefaults, "maj"),
Stanislav Fomicheve281a962014-06-26 20:14:28 +04004755 OPT_BOOLEAN(0, "syscalls", &trace.trace_syscalls, "Trace syscalls"),
Yunlong Songe366a6d2015-04-02 21:47:18 +08004756 OPT_BOOLEAN('f', "force", &trace.force, "don't complain, do it"),
Milian Wolff566a0882016-04-08 13:34:15 +02004757 OPT_CALLBACK(0, "call-graph", &trace.opts,
4758 "record_mode[,record_size]", record_callchain_help,
4759 &record_parse_callchain_opt),
Arnaldo Carvalho de Melof11b2802019-10-04 15:28:13 -03004760 OPT_BOOLEAN(0, "libtraceevent_print", &trace.libtraceevent_print,
4761 "Use libtraceevent to print the tracepoint arguments."),
Arnaldo Carvalho de Melo44621812016-04-11 15:49:11 -03004762 OPT_BOOLEAN(0, "kernel-syscall-graph", &trace.kernel_syscallchains,
4763 "Show the kernel callchains on the syscall exit path"),
Arnaldo Carvalho de Melo5067a8c2018-10-18 16:38:27 -03004764 OPT_ULONG(0, "max-events", &trace.max_events,
4765 "Set the maximum number of events to print, exit after that is reached. "),
Arnaldo Carvalho de Melo5cf9c842016-04-15 11:10:31 -03004766 OPT_UINTEGER(0, "min-stack", &trace.min_stack,
4767 "Set the minimum stack depth when parsing the callchain, "
4768 "anything below the specified depth will be ignored."),
Arnaldo Carvalho de Meloc6d4a492016-04-14 18:29:08 -03004769 OPT_UINTEGER(0, "max-stack", &trace.max_stack,
4770 "Set the maximum stack depth when parsing the callchain, "
4771 "anything beyond the specified depth will be ignored. "
Arnaldo Carvalho de Melo4cb93442016-04-27 10:16:24 -03004772 "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)),
Arnaldo Carvalho de Meloa761a8d2018-12-10 16:27:33 -03004773 OPT_BOOLEAN(0, "sort-events", &trace.sort_events,
4774 "Sort batch of events before processing, use if getting out of order events"),
Arnaldo Carvalho de Melo591421e2018-01-22 11:38:54 -03004775 OPT_BOOLEAN(0, "print-sample", &trace.print_sample,
4776 "print the PERF_RECORD_SAMPLE PERF_SAMPLE_ info, for debugging"),
Mark Drayton3fcb10e2018-12-04 12:34:20 -08004777 OPT_UINTEGER(0, "proc-map-timeout", &proc_map_timeout,
Kan Liang9d9cad72015-06-17 09:51:11 -04004778 "per thread proc mmap processing timeout in ms"),
Arnaldo Carvalho de Melo9ea42ba2018-03-06 16:30:51 -03004779 OPT_CALLBACK('G', "cgroup", &trace, "name", "monitor event in cgroup name only",
4780 trace__parse_cgroups),
Alexis Berlemonte36b7822016-10-10 07:43:28 +02004781 OPT_UINTEGER('D', "delay", &trace.opts.initial_delay,
4782 "ms to wait before starting measurement after program "
4783 "start"),
Arnaldo Carvalho de Melo22ac4312019-08-15 12:15:39 -03004784 OPTS_EVSWITCH(&trace.evswitch),
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004785 OPT_END()
4786 };
Arnaldo Carvalho de Meloccd62a82016-04-16 09:36:32 -03004787 bool __maybe_unused max_stack_user_set = true;
Arnaldo Carvalho de Melof3e459d2016-04-15 17:52:34 -03004788 bool mmap_pages_user_set = true;
Jiri Olsa32dcd022019-07-21 13:23:51 +02004789 struct evsel *evsel;
Yunlong Song6fdd9cb2015-03-18 21:35:57 +08004790 const char * const trace_subcommands[] = { "record", NULL };
Arnaldo Carvalho de Melo78e890e2018-08-07 16:19:05 -03004791 int err = -1;
Namhyung Kim32caf0d2012-10-05 14:02:13 +09004792 char bf[BUFSIZ];
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03004793
Arnaldo Carvalho de Melo4d08cb82015-02-24 15:35:55 -03004794 signal(SIGSEGV, sighandler_dump_stack);
4795 signal(SIGFPE, sighandler_dump_stack);
4796
Jiri Olsa0f98b112019-07-21 13:23:55 +02004797 trace.evlist = evlist__new();
Arnaldo Carvalho de Melofd0db102016-04-04 13:32:20 -03004798 trace.sctbl = syscalltbl__new();
Arnaldo Carvalho de Melo14a052d2015-02-03 12:58:57 -03004799
Arnaldo Carvalho de Melofd0db102016-04-04 13:32:20 -03004800 if (trace.evlist == NULL || trace.sctbl == NULL) {
Arnaldo Carvalho de Melo14a052d2015-02-03 12:58:57 -03004801 pr_err("Not enough memory to run!\n");
He Kuangff8f6952015-05-11 12:28:36 +00004802 err = -ENOMEM;
Arnaldo Carvalho de Melo14a052d2015-02-03 12:58:57 -03004803 goto out;
4804 }
4805
Arnaldo Carvalho de Meloc3e78a32019-07-09 16:36:45 -03004806 /*
4807 * Parsing .perfconfig may entail creating a BPF event, that may need
4808 * to create BPF maps, so bump RLIM_MEMLOCK as the default 64K setting
4809 * is too small. This affects just this process, not touching the
4810 * global setting. If it fails we'll get something in 'perf trace -v'
4811 * to help diagnose the problem.
4812 */
4813 rlimit__bump_memlock();
4814
Arnaldo Carvalho de Meloac962872018-12-13 17:30:20 -03004815 err = perf_config(trace__config, &trace);
4816 if (err)
4817 goto out;
4818
Yunlong Song6fdd9cb2015-03-18 21:35:57 +08004819 argc = parse_options_subcommand(argc, argv, trace_options, trace_subcommands,
4820 trace_usage, PARSE_OPT_STOP_AT_NON_OPTION);
Arnaldo Carvalho de Melo8bd436b2019-10-02 12:54:07 -03004821
4822 /*
4823 * Here we already passed thru trace__parse_events_option() and it has
4824 * already figured out if -e syscall_name, if not but if --event
4825 * foo:bar was used, the user is interested _just_ in those, say,
4826 * tracepoint events, not in the strace-like syscall-name-based mode.
4827 *
4828 * This is important because we need to check if strace-like mode is
4829 * needed to decided if we should filter out the eBPF
4830 * __augmented_syscalls__ code, if it is in the mix, say, via
4831 * .perfconfig trace.add_events, and filter those out.
4832 */
4833 if (!trace.trace_syscalls && !trace.trace_pgfaults &&
4834 trace.evlist->core.nr_entries == 0 /* Was --events used? */) {
4835 trace.trace_syscalls = true;
4836 }
Arnaldo Carvalho de Melo7e035922019-10-01 15:44:44 -03004837 /*
4838 * Now that we have --verbose figured out, lets see if we need to parse
4839 * events from .perfconfig, so that if those events fail parsing, say some
4840 * BPF program fails, then we'll be able to use --verbose to see what went
4841 * wrong in more detail.
4842 */
4843 if (trace.perfconfig_events != NULL) {
Ian Rogersa910e462019-11-15 23:46:52 -08004844 struct parse_events_error parse_err;
Arnaldo Carvalho de Melo7e035922019-10-01 15:44:44 -03004845
Ian Rogersa910e462019-11-15 23:46:52 -08004846 bzero(&parse_err, sizeof(parse_err));
Arnaldo Carvalho de Melo7e035922019-10-01 15:44:44 -03004847 err = parse_events(trace.evlist, trace.perfconfig_events, &parse_err);
4848 if (err) {
4849 parse_events_print_error(&parse_err, trace.perfconfig_events);
4850 goto out;
4851 }
4852 }
David Ahernfd2eaba2013-11-12 09:31:15 -07004853
Arnaldo Carvalho de Melo9ea42ba2018-03-06 16:30:51 -03004854 if ((nr_cgroups || trace.cgroup) && !trace.opts.target.system_wide) {
4855 usage_with_options_msg(trace_usage, trace_options,
4856 "cgroup monitoring only available in system-wide mode");
4857 }
4858
Arnaldo Carvalho de Melo78e890e2018-08-07 16:19:05 -03004859 evsel = bpf__setup_output_event(trace.evlist, "__augmented_syscalls__");
4860 if (IS_ERR(evsel)) {
4861 bpf__strerror_setup_output_event(trace.evlist, PTR_ERR(evsel), bf, sizeof(bf));
Arnaldo Carvalho de Meloe0b6d2e2018-08-07 15:40:13 -03004862 pr_err("ERROR: Setup trace syscalls enter failed: %s\n", bf);
4863 goto out;
4864 }
4865
Arnaldo Carvalho de Melo744fafc2018-11-07 10:04:51 -03004866 if (evsel) {
Arnaldo Carvalho de Melod3d1c4bdf52018-08-07 16:21:44 -03004867 trace.syscalls.events.augmented = evsel;
Arnaldo Carvalho de Meloc8c80572019-07-15 16:58:23 -03004868
4869 evsel = perf_evlist__find_tracepoint_by_name(trace.evlist, "raw_syscalls:sys_enter");
4870 if (evsel == NULL) {
4871 pr_err("ERROR: raw_syscalls:sys_enter not found in the augmented BPF object\n");
4872 goto out;
4873 }
4874
4875 if (evsel->bpf_obj == NULL) {
4876 pr_err("ERROR: raw_syscalls:sys_enter not associated to a BPF object\n");
4877 goto out;
4878 }
4879
4880 trace.bpf_obj = evsel->bpf_obj;
4881
Arnaldo Carvalho de Melo8bd436b2019-10-02 12:54:07 -03004882 /*
4883 * If we have _just_ the augmenter event but don't have a
4884 * explicit --syscalls, then assume we want all strace-like
4885 * syscalls:
4886 */
4887 if (!trace.trace_syscalls && trace__only_augmented_syscalls_evsels(&trace))
4888 trace.trace_syscalls = true;
4889 /*
4890 * So, if we have a syscall augmenter, but trace_syscalls, aka
4891 * strace-like syscall tracing is not set, then we need to trow
4892 * away the augmenter, i.e. all the events that were created
4893 * from that BPF object file.
4894 *
4895 * This is more to fix the current .perfconfig trace.add_events
4896 * style of setting up the strace-like eBPF based syscall point
4897 * payload augmenter.
4898 *
4899 * All this complexity will be avoided by adding an alternative
4900 * to trace.add_events in the form of
4901 * trace.bpf_augmented_syscalls, that will be only parsed if we
4902 * need it.
4903 *
4904 * .perfconfig trace.add_events is still useful if we want, for
4905 * instance, have msr_write.msr in some .perfconfig profile based
4906 * 'perf trace --config determinism.profile' mode, where for some
4907 * particular goal/workload type we want a set of events and
4908 * output mode (with timings, etc) instead of having to add
4909 * all via the command line.
4910 *
4911 * Also --config to specify an alternate .perfconfig file needs
4912 * to be implemented.
4913 */
4914 if (!trace.trace_syscalls) {
4915 trace__delete_augmented_syscalls(&trace);
4916 } else {
4917 trace__set_bpf_map_filtered_pids(&trace);
4918 trace__set_bpf_map_syscalls(&trace);
4919 trace.syscalls.unaugmented_prog = trace__find_bpf_program_by_title(&trace, "!raw_syscalls:unaugmented");
4920 }
Arnaldo Carvalho de Melo744fafc2018-11-07 10:04:51 -03004921 }
Arnaldo Carvalho de Melod3d1c4bdf52018-08-07 16:21:44 -03004922
Wang Nand7888572016-04-08 15:07:24 +00004923 err = bpf__setup_stdout(trace.evlist);
4924 if (err) {
4925 bpf__strerror_setup_stdout(trace.evlist, err, bf, sizeof(bf));
4926 pr_err("ERROR: Setup BPF stdout failed: %s\n", bf);
4927 goto out;
4928 }
4929
Arnaldo Carvalho de Melo59247e32016-04-12 16:05:02 -03004930 err = -1;
4931
Arnaldo Carvalho de Meloff7a4f92019-02-19 16:17:33 -03004932 if (map_dump_str) {
Arnaldo Carvalho de Melo5ca0b7f2019-07-15 17:03:10 -03004933 trace.dump.map = trace__find_bpf_map_by_name(&trace, map_dump_str);
Arnaldo Carvalho de Meloff7a4f92019-02-19 16:17:33 -03004934 if (trace.dump.map == NULL) {
4935 pr_err("ERROR: BPF map \"%s\" not found\n", map_dump_str);
4936 goto out;
4937 }
4938 }
4939
Stanislav Fomichev598d02c2014-06-26 20:14:25 +04004940 if (trace.trace_pgfaults) {
4941 trace.opts.sample_address = true;
4942 trace.opts.sample_time = true;
4943 }
4944
Arnaldo Carvalho de Melof3e459d2016-04-15 17:52:34 -03004945 if (trace.opts.mmap_pages == UINT_MAX)
4946 mmap_pages_user_set = false;
4947
Arnaldo Carvalho de Melo05614992016-04-15 16:41:19 -03004948 if (trace.max_stack == UINT_MAX) {
Arnaldo Carvalho de Melo029c75e2018-05-17 16:31:32 -03004949 trace.max_stack = input_name ? PERF_MAX_STACK_DEPTH : sysctl__max_stack();
Arnaldo Carvalho de Melo05614992016-04-15 16:41:19 -03004950 max_stack_user_set = false;
4951 }
4952
4953#ifdef HAVE_DWARF_UNWIND_SUPPORT
Arnaldo Carvalho de Melo75d50112018-01-15 10:39:55 -03004954 if ((trace.min_stack || max_stack_user_set) && !callchain_param.enabled) {
Arnaldo Carvalho de Melo05614992016-04-15 16:41:19 -03004955 record_opts__parse_callchain(&trace.opts, &callchain_param, "dwarf", false);
Arnaldo Carvalho de Melo75d50112018-01-15 10:39:55 -03004956 }
Arnaldo Carvalho de Melo05614992016-04-15 16:41:19 -03004957#endif
4958
Arnaldo Carvalho de Melo2ddd5c02016-04-18 12:09:08 -03004959 if (callchain_param.enabled) {
Arnaldo Carvalho de Melof3e459d2016-04-15 17:52:34 -03004960 if (!mmap_pages_user_set && geteuid() == 0)
4961 trace.opts.mmap_pages = perf_event_mlock_kb_in_pages() * 4;
4962
Milian Wolff566a0882016-04-08 13:34:15 +02004963 symbol_conf.use_callchain = true;
Arnaldo Carvalho de Melof3e459d2016-04-15 17:52:34 -03004964 }
Milian Wolff566a0882016-04-08 13:34:15 +02004965
Jiri Olsa6484d2f2019-07-21 13:24:28 +02004966 if (trace.evlist->core.nr_entries > 0) {
Arnaldo Carvalho de Melo206d6352019-10-01 11:31:59 -03004967 evlist__set_default_evsel_handler(trace.evlist, trace__event_handler);
Arnaldo Carvalho de Melod32855f2018-08-02 15:09:24 -03004968 if (evlist__set_syscall_tp_fields(trace.evlist)) {
4969 perror("failed to set syscalls:* tracepoint fields");
4970 goto out;
4971 }
4972 }
Arnaldo Carvalho de Melo14a052d2015-02-03 12:58:57 -03004973
Arnaldo Carvalho de Meloa761a8d2018-12-10 16:27:33 -03004974 if (trace.sort_events) {
4975 ordered_events__init(&trace.oe.data, ordered_events__deliver_event, &trace);
4976 ordered_events__set_copy_on_queue(&trace.oe.data, true);
4977 }
Jiri Olsa028713a2018-12-05 17:05:09 +01004978
Arnaldo Carvalho de Melob1a9e252018-09-03 16:29:39 -03004979 /*
4980 * If we are augmenting syscalls, then combine what we put in the
4981 * __augmented_syscalls__ BPF map with what is in the
4982 * syscalls:sys_exit_FOO tracepoints, i.e. just like we do without BPF,
4983 * combining raw_syscalls:sys_enter with raw_syscalls:sys_exit.
4984 *
4985 * We'll switch to look at two BPF maps, one for sys_enter and the
4986 * other for sys_exit when we start augmenting the sys_exit paths with
4987 * buffers that are being copied from kernel to userspace, think 'read'
4988 * syscall.
4989 */
4990 if (trace.syscalls.events.augmented) {
Arnaldo Carvalho de Melob1a9e252018-09-03 16:29:39 -03004991 evlist__for_each_entry(trace.evlist, evsel) {
Arnaldo Carvalho de Melocd26ea62018-11-03 08:19:56 -03004992 bool raw_syscalls_sys_exit = strcmp(perf_evsel__name(evsel), "raw_syscalls:sys_exit") == 0;
4993
4994 if (raw_syscalls_sys_exit) {
4995 trace.raw_augmented_syscalls = true;
4996 goto init_augmented_syscall_tp;
4997 }
4998
Arnaldo Carvalho de Melo1d59cb12019-01-24 15:39:15 +01004999 if (trace.syscalls.events.augmented->priv == NULL &&
5000 strstr(perf_evsel__name(evsel), "syscalls:sys_enter")) {
Jiri Olsa32dcd022019-07-21 13:23:51 +02005001 struct evsel *augmented = trace.syscalls.events.augmented;
Arnaldo Carvalho de Melob9b6a2e2018-12-19 18:54:36 -03005002 if (perf_evsel__init_augmented_syscall_tp(augmented, evsel) ||
5003 perf_evsel__init_augmented_syscall_tp_args(augmented))
5004 goto out;
Arnaldo Carvalho de Melob1199702019-07-16 11:53:03 -03005005 /*
5006 * Augmented is __augmented_syscalls__ BPF_OUTPUT event
5007 * Above we made sure we can get from the payload the tp fields
5008 * that we get from syscalls:sys_enter tracefs format file.
5009 */
Arnaldo Carvalho de Melob9b6a2e2018-12-19 18:54:36 -03005010 augmented->handler = trace__sys_enter;
Arnaldo Carvalho de Melob1199702019-07-16 11:53:03 -03005011 /*
5012 * Now we do the same for the *syscalls:sys_enter event so that
5013 * if we handle it directly, i.e. if the BPF prog returns 0 so
5014 * as not to filter it, then we'll handle it just like we would
5015 * for the BPF_OUTPUT one:
5016 */
5017 if (perf_evsel__init_augmented_syscall_tp(evsel, evsel) ||
5018 perf_evsel__init_augmented_syscall_tp_args(evsel))
5019 goto out;
5020 evsel->handler = trace__sys_enter;
Arnaldo Carvalho de Melob9b6a2e2018-12-19 18:54:36 -03005021 }
5022
Arnaldo Carvalho de Melocd26ea62018-11-03 08:19:56 -03005023 if (strstarts(perf_evsel__name(evsel), "syscalls:sys_exit_")) {
Arnaldo Carvalho de Melob9b6a2e2018-12-19 18:54:36 -03005024 struct syscall_tp *sc;
Arnaldo Carvalho de Melocd26ea62018-11-03 08:19:56 -03005025init_augmented_syscall_tp:
Arnaldo Carvalho de Melob9b6a2e2018-12-19 18:54:36 -03005026 if (perf_evsel__init_augmented_syscall_tp(evsel, evsel))
5027 goto out;
Arnaldo Carvalho de Melofecd9902019-10-17 08:15:11 -03005028 sc = __evsel__syscall_tp(evsel);
Arnaldo Carvalho de Melob9b6a2e2018-12-19 18:54:36 -03005029 /*
5030 * For now with BPF raw_augmented we hook into
5031 * raw_syscalls:sys_enter and there we get all
5032 * 6 syscall args plus the tracepoint common
5033 * fields and the syscall_nr (another long).
5034 * So we check if that is the case and if so
5035 * don't look after the sc->args_size but
5036 * always after the full raw_syscalls:sys_enter
5037 * payload, which is fixed.
5038 *
5039 * We'll revisit this later to pass
5040 * s->args_size to the BPF augmenter (now
5041 * tools/perf/examples/bpf/augmented_raw_syscalls.c,
5042 * so that it copies only what we need for each
5043 * syscall, like what happens when we use
5044 * syscalls:sys_enter_NAME, so that we reduce
5045 * the kernel/userspace traffic to just what is
5046 * needed for each syscall.
5047 */
5048 if (trace.raw_augmented_syscalls)
5049 trace.raw_augmented_syscalls_args_size = (6 + 1) * sizeof(long) + sc->id.offset;
Arnaldo Carvalho de Melob1a9e252018-09-03 16:29:39 -03005050 perf_evsel__init_augmented_syscall_tp_ret(evsel);
5051 evsel->handler = trace__sys_exit;
5052 }
5053 }
5054 }
5055
Stanislav Fomichev1e28fe02014-06-26 20:14:26 +04005056 if ((argc >= 1) && (strcmp(argv[0], "record") == 0))
5057 return trace__record(&trace, argc-1, &argv[1]);
5058
Arnaldo Carvalho de Melob88b14d2019-10-14 15:32:40 -03005059 /* Using just --errno-summary will trigger --summary */
5060 if (trace.errno_summary && !trace.summary && !trace.summary_only)
5061 trace.summary_only = true;
5062
Stanislav Fomichev1e28fe02014-06-26 20:14:26 +04005063 /* summary_only implies summary option, but don't overwrite summary if set */
5064 if (trace.summary_only)
5065 trace.summary = trace.summary_only;
5066
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03005067 if (output_name != NULL) {
5068 err = trace__open_output(&trace, output_name);
5069 if (err < 0) {
5070 perror("failed to create output file");
5071 goto out;
5072 }
5073 }
5074
Arnaldo Carvalho de Melo22ac4312019-08-15 12:15:39 -03005075 err = evswitch__init(&trace.evswitch, trace.evlist, stderr);
5076 if (err)
5077 goto out_close;
5078
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03005079 err = target__validate(&trace.opts.target);
Namhyung Kim32caf0d2012-10-05 14:02:13 +09005080 if (err) {
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03005081 target__strerror(&trace.opts.target, err, bf, sizeof(bf));
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03005082 fprintf(trace.output, "%s", bf);
5083 goto out_close;
Namhyung Kim32caf0d2012-10-05 14:02:13 +09005084 }
5085
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03005086 err = target__parse_uid(&trace.opts.target);
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03005087 if (err) {
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03005088 target__strerror(&trace.opts.target, err, bf, sizeof(bf));
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03005089 fprintf(trace.output, "%s", bf);
5090 goto out_close;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03005091 }
5092
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03005093 if (!argc && target__none(&trace.opts.target))
Namhyung Kimee761202012-10-05 14:02:14 +09005094 trace.opts.target.system_wide = true;
5095
David Ahern6810fc92013-08-28 22:29:52 -06005096 if (input_name)
5097 err = trace__replay(&trace);
5098 else
5099 err = trace__run(&trace, argc, argv);
Arnaldo Carvalho de Melo1302d882012-10-17 17:13:12 -03005100
Arnaldo Carvalho de Meloc24ff992013-08-19 12:01:10 -03005101out_close:
5102 if (output_name != NULL)
5103 fclose(trace.output);
5104out:
Arnaldo Carvalho de Melo7e035922019-10-01 15:44:44 -03005105 zfree(&trace.perfconfig_events);
Arnaldo Carvalho de Melo1302d882012-10-17 17:13:12 -03005106 return err;
Arnaldo Carvalho de Melo514f1c62012-09-26 20:05:56 -03005107}