blob: b9823f414f10ca06762a4a43850bde975c450378 [file] [log] [blame]
Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001// SPDX-License-Identifier: GPL-2.0
Arnaldo Carvalho de Melo9c0899f2017-04-04 12:11:07 -03002#include <inttypes.h>
3#include <stdio.h>
Brice Goglin8d513272009-08-07 13:55:24 +02004#include <stdlib.h>
Arnaldo Carvalho de Melo8520a982019-08-29 16:18:59 -03005#include <string.h>
Arnaldo Carvalho de Melo9c0899f2017-04-04 12:11:07 -03006#include <errno.h>
Arnaldo Carvalho de Melo7f7c5362019-07-04 11:32:27 -03007#include <linux/zalloc.h>
Brice Goglin8d513272009-08-07 13:55:24 +02008
Brice Goglin8d513272009-08-07 13:55:24 +02009#include "values.h"
Arnaldo Carvalho de Melo89973502016-10-14 18:23:11 -030010#include "debug.h"
Brice Goglin8d513272009-08-07 13:55:24 +020011
Arnaldo Carvalho de Melo89973502016-10-14 18:23:11 -030012int perf_read_values_init(struct perf_read_values *values)
Brice Goglin8d513272009-08-07 13:55:24 +020013{
14 values->threads_max = 16;
15 values->pid = malloc(values->threads_max * sizeof(*values->pid));
16 values->tid = malloc(values->threads_max * sizeof(*values->tid));
Jiri Olsaa1834fc2017-08-24 18:27:35 +020017 values->value = zalloc(values->threads_max * sizeof(*values->value));
Arnaldo Carvalho de Melo89973502016-10-14 18:23:11 -030018 if (!values->pid || !values->tid || !values->value) {
19 pr_debug("failed to allocate read_values threads arrays");
20 goto out_free_pid;
21 }
Brice Goglin8d513272009-08-07 13:55:24 +020022 values->threads = 0;
23
24 values->counters_max = 16;
25 values->counterrawid = malloc(values->counters_max
26 * sizeof(*values->counterrawid));
27 values->countername = malloc(values->counters_max
28 * sizeof(*values->countername));
Arnaldo Carvalho de Melo89973502016-10-14 18:23:11 -030029 if (!values->counterrawid || !values->countername) {
30 pr_debug("failed to allocate read_values counters arrays");
31 goto out_free_counter;
32 }
Brice Goglin8d513272009-08-07 13:55:24 +020033 values->counters = 0;
Arnaldo Carvalho de Melo89973502016-10-14 18:23:11 -030034
35 return 0;
36
37out_free_counter:
38 zfree(&values->counterrawid);
39 zfree(&values->countername);
40out_free_pid:
41 zfree(&values->pid);
42 zfree(&values->tid);
43 zfree(&values->value);
44 return -ENOMEM;
Brice Goglin8d513272009-08-07 13:55:24 +020045}
46
47void perf_read_values_destroy(struct perf_read_values *values)
48{
49 int i;
50
51 if (!values->threads_max || !values->counters_max)
52 return;
53
54 for (i = 0; i < values->threads; i++)
Arnaldo Carvalho de Melo74cf2492013-12-27 16:55:14 -030055 zfree(&values->value[i]);
56 zfree(&values->value);
57 zfree(&values->pid);
58 zfree(&values->tid);
59 zfree(&values->counterrawid);
Brice Goglin8d513272009-08-07 13:55:24 +020060 for (i = 0; i < values->counters; i++)
Arnaldo Carvalho de Melo74cf2492013-12-27 16:55:14 -030061 zfree(&values->countername[i]);
62 zfree(&values->countername);
Brice Goglin8d513272009-08-07 13:55:24 +020063}
64
Arnaldo Carvalho de Melo89973502016-10-14 18:23:11 -030065static int perf_read_values__enlarge_threads(struct perf_read_values *values)
Brice Goglin8d513272009-08-07 13:55:24 +020066{
Arnaldo Carvalho de Melo89973502016-10-14 18:23:11 -030067 int nthreads_max = values->threads_max * 2;
68 void *npid = realloc(values->pid, nthreads_max * sizeof(*values->pid)),
69 *ntid = realloc(values->tid, nthreads_max * sizeof(*values->tid)),
70 *nvalue = realloc(values->value, nthreads_max * sizeof(*values->value));
71
72 if (!npid || !ntid || !nvalue)
73 goto out_err;
74
75 values->threads_max = nthreads_max;
76 values->pid = npid;
77 values->tid = ntid;
78 values->value = nvalue;
79 return 0;
80out_err:
81 free(npid);
82 free(ntid);
83 free(nvalue);
84 pr_debug("failed to enlarge read_values threads arrays");
85 return -ENOMEM;
Brice Goglin8d513272009-08-07 13:55:24 +020086}
87
88static int perf_read_values__findnew_thread(struct perf_read_values *values,
89 u32 pid, u32 tid)
90{
91 int i;
92
93 for (i = 0; i < values->threads; i++)
94 if (values->pid[i] == pid && values->tid[i] == tid)
95 return i;
96
Arnaldo Carvalho de Melo89973502016-10-14 18:23:11 -030097 if (values->threads == values->threads_max) {
98 i = perf_read_values__enlarge_threads(values);
99 if (i < 0)
100 return i;
101 }
Brice Goglin8d513272009-08-07 13:55:24 +0200102
Jiri Olsa64eed1d2017-08-24 18:27:33 +0200103 i = values->threads;
Jiri Olsaa1834fc2017-08-24 18:27:35 +0200104
105 values->value[i] = zalloc(values->counters_max * sizeof(**values->value));
Arnaldo Carvalho de Melo89973502016-10-14 18:23:11 -0300106 if (!values->value[i]) {
107 pr_debug("failed to allocate read_values counters array");
108 return -ENOMEM;
109 }
Brice Goglin8d513272009-08-07 13:55:24 +0200110 values->pid[i] = pid;
111 values->tid[i] = tid;
Jiri Olsa64eed1d2017-08-24 18:27:33 +0200112 values->threads = i + 1;
Brice Goglin8d513272009-08-07 13:55:24 +0200113
114 return i;
115}
116
Arnaldo Carvalho de Melof05082b2017-04-04 12:05:37 -0300117static int perf_read_values__enlarge_counters(struct perf_read_values *values)
Brice Goglin8d513272009-08-07 13:55:24 +0200118{
Arnaldo Carvalho de Melof05082b2017-04-04 12:05:37 -0300119 char **countername;
120 int i, counters_max = values->counters_max * 2;
121 u64 *counterrawid = realloc(values->counterrawid, counters_max * sizeof(*values->counterrawid));
Brice Goglin8d513272009-08-07 13:55:24 +0200122
Arnaldo Carvalho de Melof05082b2017-04-04 12:05:37 -0300123 if (!counterrawid) {
124 pr_debug("failed to enlarge read_values rawid array");
125 goto out_enomem;
126 }
127
128 countername = realloc(values->countername, counters_max * sizeof(*values->countername));
129 if (!countername) {
130 pr_debug("failed to enlarge read_values rawid array");
131 goto out_free_rawid;
132 }
Brice Goglin8d513272009-08-07 13:55:24 +0200133
134 for (i = 0; i < values->threads; i++) {
Arnaldo Carvalho de Melof05082b2017-04-04 12:05:37 -0300135 u64 *value = realloc(values->value[i], counters_max * sizeof(**values->value));
Jiri Olsaa1834fc2017-08-24 18:27:35 +0200136 int j;
Arnaldo Carvalho de Melof05082b2017-04-04 12:05:37 -0300137
Jiri Olsaf4ef3b72017-08-24 18:27:34 +0200138 if (!value) {
Arnaldo Carvalho de Melof05082b2017-04-04 12:05:37 -0300139 pr_debug("failed to enlarge read_values ->values array");
140 goto out_free_name;
141 }
142
Jiri Olsaa1834fc2017-08-24 18:27:35 +0200143 for (j = values->counters_max; j < counters_max; j++)
144 value[j] = 0;
145
Arnaldo Carvalho de Melof05082b2017-04-04 12:05:37 -0300146 values->value[i] = value;
Brice Goglin8d513272009-08-07 13:55:24 +0200147 }
Arnaldo Carvalho de Melof05082b2017-04-04 12:05:37 -0300148
149 values->counters_max = counters_max;
150 values->counterrawid = counterrawid;
151 values->countername = countername;
152
153 return 0;
154out_free_name:
155 free(countername);
156out_free_rawid:
157 free(counterrawid);
158out_enomem:
159 return -ENOMEM;
Brice Goglin8d513272009-08-07 13:55:24 +0200160}
161
162static int perf_read_values__findnew_counter(struct perf_read_values *values,
Ingo Molnar83a09442009-08-15 12:26:57 +0200163 u64 rawid, const char *name)
Brice Goglin8d513272009-08-07 13:55:24 +0200164{
165 int i;
166
167 for (i = 0; i < values->counters; i++)
168 if (values->counterrawid[i] == rawid)
169 return i;
170
Arnaldo Carvalho de Melof05082b2017-04-04 12:05:37 -0300171 if (values->counters == values->counters_max) {
172 i = perf_read_values__enlarge_counters(values);
173 if (i)
174 return i;
175 }
Brice Goglin8d513272009-08-07 13:55:24 +0200176
177 i = values->counters++;
178 values->counterrawid[i] = rawid;
179 values->countername[i] = strdup(name);
180
181 return i;
182}
183
Arnaldo Carvalho de Melo89973502016-10-14 18:23:11 -0300184int perf_read_values_add_value(struct perf_read_values *values,
Brice Goglin8d513272009-08-07 13:55:24 +0200185 u32 pid, u32 tid,
Ingo Molnar83a09442009-08-15 12:26:57 +0200186 u64 rawid, const char *name, u64 value)
Brice Goglin8d513272009-08-07 13:55:24 +0200187{
188 int tindex, cindex;
189
190 tindex = perf_read_values__findnew_thread(values, pid, tid);
Arnaldo Carvalho de Melo89973502016-10-14 18:23:11 -0300191 if (tindex < 0)
192 return tindex;
Brice Goglin8d513272009-08-07 13:55:24 +0200193 cindex = perf_read_values__findnew_counter(values, rawid, name);
Arnaldo Carvalho de Melo89973502016-10-14 18:23:11 -0300194 if (cindex < 0)
195 return cindex;
Brice Goglin8d513272009-08-07 13:55:24 +0200196
Jiri Olsa99331832017-08-24 18:27:36 +0200197 values->value[tindex][cindex] += value;
Arnaldo Carvalho de Melo89973502016-10-14 18:23:11 -0300198 return 0;
Brice Goglin8d513272009-08-07 13:55:24 +0200199}
200
Brice Goglin9f866692009-08-10 15:26:32 +0200201static void perf_read_values__display_pretty(FILE *fp,
202 struct perf_read_values *values)
Brice Goglin8d513272009-08-07 13:55:24 +0200203{
204 int i, j;
205 int pidwidth, tidwidth;
206 int *counterwidth;
207
208 counterwidth = malloc(values->counters * sizeof(*counterwidth));
Arnaldo Carvalho de Melo9c0899f2017-04-04 12:11:07 -0300209 if (!counterwidth) {
210 fprintf(fp, "INTERNAL ERROR: Failed to allocate counterwidth array\n");
211 return;
212 }
Brice Goglin8d513272009-08-07 13:55:24 +0200213 tidwidth = 3;
214 pidwidth = 3;
215 for (j = 0; j < values->counters; j++)
216 counterwidth[j] = strlen(values->countername[j]);
217 for (i = 0; i < values->threads; i++) {
218 int width;
219
220 width = snprintf(NULL, 0, "%d", values->pid[i]);
221 if (width > pidwidth)
222 pidwidth = width;
223 width = snprintf(NULL, 0, "%d", values->tid[i]);
224 if (width > tidwidth)
225 tidwidth = width;
226 for (j = 0; j < values->counters; j++) {
Arnaldo Carvalho de Melo9486aa32011-01-22 20:37:02 -0200227 width = snprintf(NULL, 0, "%" PRIu64, values->value[i][j]);
Brice Goglin8d513272009-08-07 13:55:24 +0200228 if (width > counterwidth[j])
229 counterwidth[j] = width;
230 }
231 }
232
233 fprintf(fp, "# %*s %*s", pidwidth, "PID", tidwidth, "TID");
234 for (j = 0; j < values->counters; j++)
235 fprintf(fp, " %*s", counterwidth[j], values->countername[j]);
236 fprintf(fp, "\n");
237
238 for (i = 0; i < values->threads; i++) {
239 fprintf(fp, " %*d %*d", pidwidth, values->pid[i],
240 tidwidth, values->tid[i]);
241 for (j = 0; j < values->counters; j++)
Arnaldo Carvalho de Melo9486aa32011-01-22 20:37:02 -0200242 fprintf(fp, " %*" PRIu64,
Brice Goglin8d513272009-08-07 13:55:24 +0200243 counterwidth[j], values->value[i][j]);
244 fprintf(fp, "\n");
245 }
Alexander Beregalov8d9e5032010-01-07 19:40:47 +0300246 free(counterwidth);
Brice Goglin8d513272009-08-07 13:55:24 +0200247}
Brice Goglin9f866692009-08-10 15:26:32 +0200248
249static void perf_read_values__display_raw(FILE *fp,
250 struct perf_read_values *values)
251{
252 int width, pidwidth, tidwidth, namewidth, rawwidth, countwidth;
253 int i, j;
254
255 tidwidth = 3; /* TID */
256 pidwidth = 3; /* PID */
257 namewidth = 4; /* "Name" */
258 rawwidth = 3; /* "Raw" */
259 countwidth = 5; /* "Count" */
260
261 for (i = 0; i < values->threads; i++) {
262 width = snprintf(NULL, 0, "%d", values->pid[i]);
263 if (width > pidwidth)
264 pidwidth = width;
265 width = snprintf(NULL, 0, "%d", values->tid[i]);
266 if (width > tidwidth)
267 tidwidth = width;
268 }
269 for (j = 0; j < values->counters; j++) {
270 width = strlen(values->countername[j]);
271 if (width > namewidth)
272 namewidth = width;
Arnaldo Carvalho de Melo9486aa32011-01-22 20:37:02 -0200273 width = snprintf(NULL, 0, "%" PRIx64, values->counterrawid[j]);
Brice Goglin9f866692009-08-10 15:26:32 +0200274 if (width > rawwidth)
275 rawwidth = width;
276 }
277 for (i = 0; i < values->threads; i++) {
278 for (j = 0; j < values->counters; j++) {
Arnaldo Carvalho de Melo9486aa32011-01-22 20:37:02 -0200279 width = snprintf(NULL, 0, "%" PRIu64, values->value[i][j]);
Brice Goglin9f866692009-08-10 15:26:32 +0200280 if (width > countwidth)
281 countwidth = width;
282 }
283 }
284
285 fprintf(fp, "# %*s %*s %*s %*s %*s\n",
286 pidwidth, "PID", tidwidth, "TID",
287 namewidth, "Name", rawwidth, "Raw",
288 countwidth, "Count");
289 for (i = 0; i < values->threads; i++)
290 for (j = 0; j < values->counters; j++)
Arnaldo Carvalho de Melo9486aa32011-01-22 20:37:02 -0200291 fprintf(fp, " %*d %*d %*s %*" PRIx64 " %*" PRIu64,
Brice Goglin9f866692009-08-10 15:26:32 +0200292 pidwidth, values->pid[i],
293 tidwidth, values->tid[i],
294 namewidth, values->countername[j],
295 rawwidth, values->counterrawid[j],
296 countwidth, values->value[i][j]);
297}
298
Ingo Molnar83a09442009-08-15 12:26:57 +0200299void perf_read_values_display(FILE *fp, struct perf_read_values *values, int raw)
Brice Goglin9f866692009-08-10 15:26:32 +0200300{
301 if (raw)
302 perf_read_values__display_raw(fp, values);
303 else
304 perf_read_values__display_pretty(fp, values);
305}