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review.shift-gmbh.com / SHIFTPHONES / mainline / linux / 3158e9411a66fb98d495ac441c242264f31aaf3e / . / arch / mips / kernel / scall64-n32.S
blob: 05a2c0567daedd953d3a62cb82cc54c356fc2b8b [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 1995, 96, 97, 98, 99, 2000, 01 by Ralf Baechle
7 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
8 * Copyright (C) 2001 MIPS Technologies, Inc.
9 */
10#include <linux/config.h>
11#include <linux/errno.h>
12#include <asm/asm.h>
13#include <asm/asmmacro.h>
14#include <asm/mipsregs.h>
15#include <asm/regdef.h>
16#include <asm/stackframe.h>
17#include <asm/thread_info.h>
18#include <asm/unistd.h>
19
20/* This duplicates the definition from <linux/sched.h> */
21#define PT_TRACESYS 0x00000002 /* tracing system calls */
22
23/* This duplicates the definition from <asm/signal.h> */
24#define SIGILL 4 /* Illegal instruction (ANSI). */
25
26#ifndef CONFIG_MIPS32_O32
27/* No O32, so define handle_sys here */
28#define handle_sysn32 handle_sys
29#endif
30
31 .align 5
32NESTED(handle_sysn32, PT_SIZE, sp)
33#ifndef CONFIG_MIPS32_O32
34 .set noat
35 SAVE_SOME
36 STI
37 .set at
38#endif
39
40 dsubu t0, v0, __NR_N32_Linux # check syscall number
41 sltiu t0, t0, __NR_N32_Linux_syscalls + 1
42
43#ifndef CONFIG_MIPS32_O32
44 ld t1, PT_EPC(sp) # skip syscall on return
45 daddiu t1, 4 # skip to next instruction
46 sd t1, PT_EPC(sp)
47#endif
48 beqz t0, not_n32_scall
49
50 dsll t0, v0, 3 # offset into table
51 ld t2, (sysn32_call_table - (__NR_N32_Linux * 8))(t0)
52
53 sd a3, PT_R26(sp) # save a3 for syscall restarting
54
55 li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
56 LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
57 and t0, t1, t0
58 bnez t0, n32_syscall_trace_entry
59
60 jalr t2 # Do The Real Thing (TM)
61
62 li t0, -EMAXERRNO - 1 # error?
63 sltu t0, t0, v0
64 sd t0, PT_R7(sp) # set error flag
65 beqz t0, 1f
66
67 dnegu v0 # error
68 sd v0, PT_R0(sp) # set flag for syscall restarting
691: sd v0, PT_R2(sp) # result
70
71 local_irq_disable # make sure need_resched and
72 # signals dont change between
73 # sampling and return
74 LONG_L a2, TI_FLAGS($28) # current->work
75 li t0, _TIF_ALLWORK_MASK
76 and t0, a2, t0
77 bnez t0, n32_syscall_exit_work
78
79 j restore_partial
80
81n32_syscall_exit_work:
82 j syscall_exit_work_partial
83
84/* ------------------------------------------------------------------------ */
85
86n32_syscall_trace_entry:
87 SAVE_STATIC
88 move s0, t2
89 move a0, sp
90 li a1, 0
91 jal do_syscall_trace
92
Ralf Baechle04a70522005-11-30 16:24:57 +0000[diff] [blame]93 move t0, s0
94 RESTORE_STATIC
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]95 ld a0, PT_R4(sp) # Restore argument registers
96 ld a1, PT_R5(sp)
97 ld a2, PT_R6(sp)
98 ld a3, PT_R7(sp)
99 ld a4, PT_R8(sp)
100 ld a5, PT_R9(sp)
Ralf Baechle04a70522005-11-30 16:24:57 +0000[diff] [blame]101 jalr t0
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]102
103 li t0, -EMAXERRNO - 1 # error?
104 sltu t0, t0, v0
105 sd t0, PT_R7(sp) # set error flag
106 beqz t0, 1f
107
108 dnegu v0 # error
109 sd v0, PT_R0(sp) # set flag for syscall restarting
1101: sd v0, PT_R2(sp) # result
111
112 j syscall_exit
113
114not_n32_scall:
115 /* This is not an n32 compatibility syscall, pass it on to
116 the n64 syscall handlers. */
117 j handle_sys64
118
119 END(handle_sysn32)
120
121EXPORT(sysn32_call_table)
122 PTR sys_read /* 6000 */
123 PTR sys_write
124 PTR sys_open
125 PTR sys_close
126 PTR sys_newstat
127 PTR sys_newfstat /* 6005 */
128 PTR sys_newlstat
129 PTR sys_poll
130 PTR sys_lseek
131 PTR old_mmap
132 PTR sys_mprotect /* 6010 */
133 PTR sys_munmap
134 PTR sys_brk
135 PTR sys32_rt_sigaction
136 PTR sys32_rt_sigprocmask
137 PTR compat_sys_ioctl /* 6015 */
138 PTR sys_pread64
139 PTR sys_pwrite64
140 PTR compat_sys_readv
141 PTR compat_sys_writev
142 PTR sys_access /* 6020 */
143 PTR sys_pipe
144 PTR compat_sys_select
145 PTR sys_sched_yield
146 PTR sys_mremap
147 PTR sys_msync /* 6025 */
148 PTR sys_mincore
149 PTR sys_madvise
150 PTR sys_shmget
151 PTR sys32_shmat
152 PTR sys_shmctl /* 6030 */
153 PTR sys_dup
154 PTR sys_dup2
155 PTR sys_pause
156 PTR compat_sys_nanosleep
157 PTR compat_sys_getitimer /* 6035 */
158 PTR compat_sys_setitimer
159 PTR sys_alarm
160 PTR sys_getpid
161 PTR sys32_sendfile
162 PTR sys_socket /* 6040 */
163 PTR sys_connect
164 PTR sys_accept
165 PTR sys_sendto
166 PTR sys_recvfrom
167 PTR compat_sys_sendmsg /* 6045 */
168 PTR compat_sys_recvmsg
169 PTR sys_shutdown
170 PTR sys_bind
171 PTR sys_listen
172 PTR sys_getsockname /* 6050 */
173 PTR sys_getpeername
174 PTR sys_socketpair
175 PTR compat_sys_setsockopt
176 PTR sys_getsockopt
177 PTR sys_clone /* 6055 */
178 PTR sys_fork
179 PTR sys32_execve
180 PTR sys_exit
Ralf Baechleb6e203d2005-02-16 21:18:52 +0000[diff] [blame]181 PTR compat_sys_wait4
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]182 PTR sys_kill /* 6060 */
183 PTR sys32_newuname
184 PTR sys_semget
185 PTR sys_semop
186 PTR sys_semctl
187 PTR sys_shmdt /* 6065 */
188 PTR sys_msgget
189 PTR sys_msgsnd
190 PTR sys_msgrcv
191 PTR sys_msgctl
192 PTR compat_sys_fcntl /* 6070 */
193 PTR sys_flock
194 PTR sys_fsync
195 PTR sys_fdatasync
196 PTR sys_truncate
197 PTR sys_ftruncate /* 6075 */
Atsushi Nemoto2fd628f2006-02-21 15:59:00 +0900[diff] [blame]198 PTR compat_sys_getdents
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]199 PTR sys_getcwd
200 PTR sys_chdir
201 PTR sys_fchdir
202 PTR sys_rename /* 6080 */
203 PTR sys_mkdir
204 PTR sys_rmdir
205 PTR sys_creat
206 PTR sys_link
207 PTR sys_unlink /* 6085 */
208 PTR sys_symlink
209 PTR sys_readlink
210 PTR sys_chmod
211 PTR sys_fchmod
212 PTR sys_chown /* 6090 */
213 PTR sys_fchown
214 PTR sys_lchown
215 PTR sys_umask
216 PTR sys32_gettimeofday
217 PTR compat_sys_getrlimit /* 6095 */
218 PTR compat_sys_getrusage
219 PTR sys32_sysinfo
220 PTR compat_sys_times
Daniel Jacobowitzea3d7102005-09-28 18:11:15 -0400[diff] [blame]221 PTR sys32_ptrace
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]222 PTR sys_getuid /* 6100 */
223 PTR sys_syslog
224 PTR sys_getgid
225 PTR sys_setuid
226 PTR sys_setgid
227 PTR sys_geteuid /* 6105 */
228 PTR sys_getegid
229 PTR sys_setpgid
230 PTR sys_getppid
231 PTR sys_getpgrp
232 PTR sys_setsid /* 6110 */
233 PTR sys_setreuid
234 PTR sys_setregid
235 PTR sys_getgroups
236 PTR sys_setgroups
237 PTR sys_setresuid /* 6115 */
238 PTR sys_getresuid
239 PTR sys_setresgid
240 PTR sys_getresgid
241 PTR sys_getpgid
242 PTR sys_setfsuid /* 6120 */
243 PTR sys_setfsgid
244 PTR sys_getsid
245 PTR sys_capget
246 PTR sys_capset
247 PTR sys32_rt_sigpending /* 6125 */
Ralf Baechle82ad93f2006-02-18 22:47:26 +0000[diff] [blame]248 PTR compat_sys_rt_sigtimedwait
Ralf Baechled1abb6a2005-02-16 21:25:03 +0000[diff] [blame]249 PTR sys_rt_sigqueueinfo
Ralf Baechle82ad93f2006-02-18 22:47:26 +0000[diff] [blame]250 PTR sysn32_rt_sigsuspend
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]251 PTR sys32_sigaltstack
252 PTR compat_sys_utime /* 6130 */
253 PTR sys_mknod
254 PTR sys32_personality
Thiemo Seufercce812c2005-04-17 00:04:21 +0000[diff] [blame]255 PTR sys32_ustat
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]256 PTR compat_sys_statfs
257 PTR compat_sys_fstatfs /* 6135 */
258 PTR sys_sysfs
259 PTR sys_getpriority
260 PTR sys_setpriority
261 PTR sys_sched_setparam
262 PTR sys_sched_getparam /* 6140 */
263 PTR sys_sched_setscheduler
264 PTR sys_sched_getscheduler
265 PTR sys_sched_get_priority_max
266 PTR sys_sched_get_priority_min
267 PTR sys32_sched_rr_get_interval /* 6145 */
268 PTR sys_mlock
269 PTR sys_munlock
270 PTR sys_mlockall
271 PTR sys_munlockall
272 PTR sys_vhangup /* 6150 */
273 PTR sys_pivot_root
274 PTR sys32_sysctl
275 PTR sys_prctl
Stephen Rothwell3158e942006-03-26 01:37:29 -0800[diff] [blame^]276 PTR compat_sys_adjtimex
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]277 PTR compat_sys_setrlimit /* 6155 */
278 PTR sys_chroot
279 PTR sys_sync
280 PTR sys_acct
281 PTR sys32_settimeofday
282 PTR sys_mount /* 6160 */
283 PTR sys_umount
284 PTR sys_swapon
285 PTR sys_swapoff
286 PTR sys_reboot
287 PTR sys_sethostname /* 6165 */
288 PTR sys_setdomainname
289 PTR sys_ni_syscall /* was create_module */
290 PTR sys_init_module
291 PTR sys_delete_module
292 PTR sys_ni_syscall /* 6170, was get_kernel_syms */
293 PTR sys_ni_syscall /* was query_module */
294 PTR sys_quotactl
295 PTR sys_nfsservctl
296 PTR sys_ni_syscall /* res. for getpmsg */
297 PTR sys_ni_syscall /* 6175 for putpmsg */
298 PTR sys_ni_syscall /* res. for afs_syscall */
299 PTR sys_ni_syscall /* res. for security */
300 PTR sys_gettid
301 PTR sys32_readahead
302 PTR sys_setxattr /* 6180 */
303 PTR sys_lsetxattr
304 PTR sys_fsetxattr
305 PTR sys_getxattr
306 PTR sys_lgetxattr
307 PTR sys_fgetxattr /* 6185 */
308 PTR sys_listxattr
309 PTR sys_llistxattr
310 PTR sys_flistxattr
311 PTR sys_removexattr
312 PTR sys_lremovexattr /* 6190 */
313 PTR sys_fremovexattr
314 PTR sys_tkill
315 PTR sys_ni_syscall
316 PTR compat_sys_futex
317 PTR compat_sys_sched_setaffinity /* 6195 */
318 PTR compat_sys_sched_getaffinity
319 PTR sys_cacheflush
320 PTR sys_cachectl
321 PTR sys_sysmips
322 PTR sys_io_setup /* 6200 */
323 PTR sys_io_destroy
324 PTR sys_io_getevents
325 PTR sys_io_submit
326 PTR sys_io_cancel
327 PTR sys_exit_group /* 6205 */
328 PTR sys_lookup_dcookie
329 PTR sys_epoll_create
330 PTR sys_epoll_ctl
331 PTR sys_epoll_wait
332 PTR sys_remap_file_pages /* 6210 */
333 PTR sysn32_rt_sigreturn
Thiemo Seufer589391a2005-04-13 09:11:22 +0000[diff] [blame]334 PTR compat_sys_fcntl64
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]335 PTR sys_set_tid_address
336 PTR sys_restart_syscall
337 PTR sys_semtimedop /* 6215 */
338 PTR sys_fadvise64_64
339 PTR compat_sys_statfs64
340 PTR compat_sys_fstatfs64
341 PTR sys_sendfile64
Ralf Baechled1abb6a2005-02-16 21:25:03 +0000[diff] [blame]342 PTR sys32_timer_create /* 6220 */
343 PTR compat_sys_timer_settime
344 PTR compat_sys_timer_gettime
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]345 PTR sys_timer_getoverrun
346 PTR sys_timer_delete
Ralf Baechled1abb6a2005-02-16 21:25:03 +0000[diff] [blame]347 PTR compat_sys_clock_settime /* 6225 */
348 PTR compat_sys_clock_gettime
349 PTR compat_sys_clock_getres
350 PTR compat_sys_clock_nanosleep
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]351 PTR sys_tgkill
352 PTR compat_sys_utimes /* 6230 */
353 PTR sys_ni_syscall /* sys_mbind */
354 PTR sys_ni_syscall /* sys_get_mempolicy */
355 PTR sys_ni_syscall /* sys_set_mempolicy */
356 PTR compat_sys_mq_open
357 PTR sys_mq_unlink /* 6235 */
358 PTR compat_sys_mq_timedsend
359 PTR compat_sys_mq_timedreceive
360 PTR compat_sys_mq_notify
361 PTR compat_sys_mq_getsetattr
362 PTR sys_ni_syscall /* 6240, sys_vserver */
Ralf Baechle54f2da72005-02-16 21:21:29 +0000[diff] [blame]363 PTR sysn32_waitid
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]364 PTR sys_ni_syscall /* available, was setaltroot */
365 PTR sys_add_key
366 PTR sys_request_key
367 PTR sys_keyctl /* 6245 */
Ralf Baechle3c370262005-04-13 17:43:59 +0000[diff] [blame]368 PTR sys_set_thread_area
Ralf Baechle8d9c6262005-08-05 10:31:47 +0000[diff] [blame]369 PTR sys_inotify_init
370 PTR sys_inotify_add_watch
371 PTR sys_inotify_rm_watch
Ralf Baechle72bf8912006-02-08 13:38:50 +0000[diff] [blame]372 PTR sys_migrate_pages /* 6250 */
373 PTR sys_openat
374 PTR sys_mkdirat
375 PTR sys_mknodat
376 PTR sys_fchownat
377 PTR sys_futimesat /* 6255 */
378 PTR sys_newfstatat
379 PTR sys_unlinkat
380 PTR sys_renameat
381 PTR sys_linkat
382 PTR sys_symlinkat /* 6260 */
383 PTR sys_readlinkat
384 PTR sys_fchmodat
385 PTR sys_faccessat
386 PTR sys_pselect6
387 PTR sys_ppoll /* 6265 */
388 PTR sys_unshare