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gerrit-public.fairphone.software / kernel / msm-4.9 / 389cdc5d359c48c36c3512645ec2533370aa6eb3 / . / arch / mips / kernel / scall64-64.S
blob: ad4d44635c7601162ca0dd8f1b626df28eeeafb2 [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, 02 by Ralf Baechle
7 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
8 * Copyright (C) 2001 MIPS Technologies, Inc.
9 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]10#include <linux/errno.h>
11#include <asm/asm.h>
12#include <asm/asmmacro.h>
Ralf Baechle192ef362006-07-07 14:07:18 +0100[diff] [blame]13#include <asm/irqflags.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]14#include <asm/mipsregs.h>
15#include <asm/regdef.h>
16#include <asm/stackframe.h>
Sam Ravnborg048eb582005-09-09 22:32:31 +0200[diff] [blame]17#include <asm/asm-offsets.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]18#include <asm/sysmips.h>
19#include <asm/thread_info.h>
20#include <asm/unistd.h>
21#include <asm/war.h>
22
23#ifndef CONFIG_BINFMT_ELF32
24/* Neither O32 nor N32, so define handle_sys here */
25#define handle_sys64 handle_sys
26#endif
27
Ralf Baechle70342282013-01-22 12:59:30 +0100[diff] [blame]28 .align 5
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]29NESTED(handle_sys64, PT_SIZE, sp)
30#if !defined(CONFIG_MIPS32_O32) && !defined(CONFIG_MIPS32_N32)
31 /*
32 * When 32-bit compatibility is configured scall_o32.S
33 * already did this.
34 */
35 .set noat
36 SAVE_SOME
Atsushi Nemotoeae6c0d2006-09-26 23:43:40 +0900[diff] [blame]37 TRACE_IRQS_ON_RELOAD
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]38 STI
39 .set at
40#endif
41
42 dsubu t0, v0, __NR_64_Linux # check syscall number
Ralf Baechle70342282013-01-22 12:59:30 +0100[diff] [blame]43 sltiu t0, t0, __NR_64_Linux_syscalls + 1
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]44#if !defined(CONFIG_MIPS32_O32) && !defined(CONFIG_MIPS32_N32)
45 ld t1, PT_EPC(sp) # skip syscall on return
46 daddiu t1, 4 # skip to next instruction
47 sd t1, PT_EPC(sp)
48#endif
49 beqz t0, illegal_syscall
50
51 dsll t0, v0, 3 # offset into table
52 ld t2, (sys_call_table - (__NR_64_Linux * 8))(t0)
53 # syscall routine
54
55 sd a3, PT_R26(sp) # save a3 for syscall restarting
56
Ralf Baechlee7f3b482013-05-29 01:02:18 +0200[diff] [blame]57 li t1, _TIF_WORK_SYSCALL_ENTRY
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]58 LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
59 and t0, t1, t0
60 bnez t0, syscall_trace_entry
61
62 jalr t2 # Do The Real Thing (TM)
63
64 li t0, -EMAXERRNO - 1 # error?
65 sltu t0, t0, v0
66 sd t0, PT_R7(sp) # set error flag
67 beqz t0, 1f
68
Al Viro8f5a00eb2010-09-28 18:50:37 +0100[diff] [blame]69 ld t1, PT_R2(sp) # syscall number
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]70 dnegu v0 # error
Al Viro8f5a00eb2010-09-28 18:50:37 +0100[diff] [blame]71 sd t1, PT_R0(sp) # save it for syscall restarting
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]721: sd v0, PT_R2(sp) # result
73
74n64_syscall_exit:
Al Viro02f884e2012-05-05 16:11:35 -0400[diff] [blame]75 j syscall_exit_partial
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]76
77/* ------------------------------------------------------------------------ */
78
79syscall_trace_entry:
80 SAVE_STATIC
81 move s0, t2
82 move a0, sp
Markos Chandras4c21b8f2014-01-22 14:40:03 +0000[diff] [blame]83 daddiu a1, v0, __NR_64_Linux
Ralf Baechle8b659a32011-05-19 09:21:29 +0100[diff] [blame]84 jal syscall_trace_enter
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]85
Markos Chandras9d37c402014-01-22 14:40:02 +0000[diff] [blame]86 bltz v0, 2f # seccomp failed? Skip syscall
87
Ralf Baechle04a70522005-11-30 16:24:57 +0000[diff] [blame]88 move t0, s0
89 RESTORE_STATIC
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]90 ld a0, PT_R4(sp) # Restore argument registers
91 ld a1, PT_R5(sp)
92 ld a2, PT_R6(sp)
93 ld a3, PT_R7(sp)
94 ld a4, PT_R8(sp)
95 ld a5, PT_R9(sp)
Ralf Baechle04a70522005-11-30 16:24:57 +0000[diff] [blame]96 jalr t0
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]97
98 li t0, -EMAXERRNO - 1 # error?
99 sltu t0, t0, v0
100 sd t0, PT_R7(sp) # set error flag
101 beqz t0, 1f
102
Al Viro8f5a00eb2010-09-28 18:50:37 +0100[diff] [blame]103 ld t1, PT_R2(sp) # syscall number
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]104 dnegu v0 # error
Al Viro8f5a00eb2010-09-28 18:50:37 +0100[diff] [blame]105 sd t1, PT_R0(sp) # save it for syscall restarting
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1061: sd v0, PT_R2(sp) # result
107
Markos Chandras9d37c402014-01-22 14:40:02 +0000[diff] [blame]1082: j syscall_exit
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]109
110illegal_syscall:
111 /* This also isn't a 64-bit syscall, throw an error. */
Atsushi Nemotobda82292008-10-25 01:17:22 +0900[diff] [blame]112 li v0, ENOSYS # error
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]113 sd v0, PT_R2(sp)
114 li t0, 1 # set error flag
115 sd t0, PT_R7(sp)
116 j n64_syscall_exit
117 END(handle_sys64)
118
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]119 .align 3
Ralf Baechle03b94e22012-07-12 14:06:46 +0200[diff] [blame]120 .type sys_call_table, @object
121EXPORT(sys_call_table)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]122 PTR sys_read /* 5000 */
123 PTR sys_write
124 PTR sys_open
125 PTR sys_close
126 PTR sys_newstat
127 PTR sys_newfstat /* 5005 */
128 PTR sys_newlstat
129 PTR sys_poll
130 PTR sys_lseek
Ralf Baechledbda6ac2009-02-08 16:00:26 +0000[diff] [blame]131 PTR sys_mips_mmap
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]132 PTR sys_mprotect /* 5010 */
133 PTR sys_munmap
134 PTR sys_brk
135 PTR sys_rt_sigaction
136 PTR sys_rt_sigprocmask
137 PTR sys_ioctl /* 5015 */
138 PTR sys_pread64
139 PTR sys_pwrite64
140 PTR sys_readv
141 PTR sys_writev
142 PTR sys_access /* 5020 */
Ralf Baechle8213bbf2008-07-20 13:16:46 +0100[diff] [blame]143 PTR sysm_pipe
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]144 PTR sys_select
145 PTR sys_sched_yield
146 PTR sys_mremap
147 PTR sys_msync /* 5025 */
148 PTR sys_mincore
149 PTR sys_madvise
150 PTR sys_shmget
151 PTR sys_shmat
152 PTR sys_shmctl /* 5030 */
153 PTR sys_dup
154 PTR sys_dup2
155 PTR sys_pause
156 PTR sys_nanosleep
157 PTR sys_getitimer /* 5035 */
158 PTR sys_setitimer
159 PTR sys_alarm
160 PTR sys_getpid
161 PTR sys_sendfile64
162 PTR sys_socket /* 5040 */
163 PTR sys_connect
164 PTR sys_accept
165 PTR sys_sendto
166 PTR sys_recvfrom
167 PTR sys_sendmsg /* 5045 */
168 PTR sys_recvmsg
169 PTR sys_shutdown
170 PTR sys_bind
171 PTR sys_listen
172 PTR sys_getsockname /* 5050 */
173 PTR sys_getpeername
174 PTR sys_socketpair
175 PTR sys_setsockopt
176 PTR sys_getsockopt
Al Viro50150d22012-12-27 12:11:46 -0500[diff] [blame]177 PTR __sys_clone /* 5055 */
178 PTR __sys_fork
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]179 PTR sys_execve
180 PTR sys_exit
181 PTR sys_wait4
182 PTR sys_kill /* 5060 */
183 PTR sys_newuname
184 PTR sys_semget
185 PTR sys_semop
186 PTR sys_semctl
187 PTR sys_shmdt /* 5065 */
188 PTR sys_msgget
189 PTR sys_msgsnd
190 PTR sys_msgrcv
191 PTR sys_msgctl
192 PTR sys_fcntl /* 5070 */
193 PTR sys_flock
194 PTR sys_fsync
195 PTR sys_fdatasync
196 PTR sys_truncate
197 PTR sys_ftruncate /* 5075 */
198 PTR sys_getdents
199 PTR sys_getcwd
200 PTR sys_chdir
201 PTR sys_fchdir
202 PTR sys_rename /* 5080 */
203 PTR sys_mkdir
204 PTR sys_rmdir
205 PTR sys_creat
206 PTR sys_link
207 PTR sys_unlink /* 5085 */
208 PTR sys_symlink
209 PTR sys_readlink
210 PTR sys_chmod
211 PTR sys_fchmod
212 PTR sys_chown /* 5090 */
213 PTR sys_fchown
214 PTR sys_lchown
215 PTR sys_umask
216 PTR sys_gettimeofday
217 PTR sys_getrlimit /* 5095 */
218 PTR sys_getrusage
219 PTR sys_sysinfo
220 PTR sys_times
221 PTR sys_ptrace
222 PTR sys_getuid /* 5100 */
223 PTR sys_syslog
224 PTR sys_getgid
225 PTR sys_setuid
226 PTR sys_setgid
227 PTR sys_geteuid /* 5105 */
228 PTR sys_getegid
229 PTR sys_setpgid
230 PTR sys_getppid
231 PTR sys_getpgrp
232 PTR sys_setsid /* 5110 */
233 PTR sys_setreuid
234 PTR sys_setregid
235 PTR sys_getgroups
236 PTR sys_setgroups
237 PTR sys_setresuid /* 5115 */
238 PTR sys_getresuid
239 PTR sys_setresgid
240 PTR sys_getresgid
241 PTR sys_getpgid
242 PTR sys_setfsuid /* 5120 */
243 PTR sys_setfsgid
244 PTR sys_getsid
245 PTR sys_capget
246 PTR sys_capset
247 PTR sys_rt_sigpending /* 5125 */
248 PTR sys_rt_sigtimedwait
249 PTR sys_rt_sigqueueinfo
250 PTR sys_rt_sigsuspend
251 PTR sys_sigaltstack
252 PTR sys_utime /* 5130 */
253 PTR sys_mknod
254 PTR sys_personality
255 PTR sys_ustat
256 PTR sys_statfs
257 PTR sys_fstatfs /* 5135 */
258 PTR sys_sysfs
259 PTR sys_getpriority
260 PTR sys_setpriority
261 PTR sys_sched_setparam
262 PTR sys_sched_getparam /* 5140 */
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 sys_sched_rr_get_interval /* 5145 */
268 PTR sys_mlock
269 PTR sys_munlock
270 PTR sys_mlockall
271 PTR sys_munlockall
272 PTR sys_vhangup /* 5150 */
273 PTR sys_pivot_root
274 PTR sys_sysctl
275 PTR sys_prctl
276 PTR sys_adjtimex
277 PTR sys_setrlimit /* 5155 */
278 PTR sys_chroot
279 PTR sys_sync
280 PTR sys_acct
281 PTR sys_settimeofday
282 PTR sys_mount /* 5160 */
283 PTR sys_umount
284 PTR sys_swapon
285 PTR sys_swapoff
286 PTR sys_reboot
287 PTR sys_sethostname /* 5165 */
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 /* 5170, was get_kernel_syms */
293 PTR sys_ni_syscall /* was query_module */
294 PTR sys_quotactl
NeilBrownf5b94092011-08-26 18:03:11 -0400[diff] [blame]295 PTR sys_ni_syscall /* was nfsservctl */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]296 PTR sys_ni_syscall /* res. for getpmsg */
Ralf Baechle70342282013-01-22 12:59:30 +0100[diff] [blame]297 PTR sys_ni_syscall /* 5175 for putpmsg */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]298 PTR sys_ni_syscall /* res. for afs_syscall */
299 PTR sys_ni_syscall /* res. for security */
300 PTR sys_gettid
301 PTR sys_readahead
302 PTR sys_setxattr /* 5180 */
303 PTR sys_lsetxattr
304 PTR sys_fsetxattr
305 PTR sys_getxattr
306 PTR sys_lgetxattr
307 PTR sys_fgetxattr /* 5185 */
308 PTR sys_listxattr
309 PTR sys_llistxattr
310 PTR sys_flistxattr
311 PTR sys_removexattr
312 PTR sys_lremovexattr /* 5190 */
313 PTR sys_fremovexattr
314 PTR sys_tkill
315 PTR sys_ni_syscall
316 PTR sys_futex
317 PTR sys_sched_setaffinity /* 5195 */
318 PTR sys_sched_getaffinity
319 PTR sys_cacheflush
320 PTR sys_cachectl
321 PTR sys_sysmips
322 PTR sys_io_setup /* 5200 */
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 /* 5205 */
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 /* 5210 */
333 PTR sys_rt_sigreturn
334 PTR sys_set_tid_address
335 PTR sys_restart_syscall
336 PTR sys_semtimedop
337 PTR sys_fadvise64_64 /* 5215 */
338 PTR sys_timer_create
339 PTR sys_timer_settime
340 PTR sys_timer_gettime
341 PTR sys_timer_getoverrun
342 PTR sys_timer_delete /* 5220 */
343 PTR sys_clock_settime
344 PTR sys_clock_gettime
345 PTR sys_clock_getres
346 PTR sys_clock_nanosleep
347 PTR sys_tgkill /* 5225 */
348 PTR sys_utimes
349 PTR sys_mbind
Huacai Chen1ff1ad62014-06-26 11:41:29 +0800[diff] [blame]350 PTR sys_get_mempolicy
351 PTR sys_set_mempolicy
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]352 PTR sys_mq_open /* 5230 */
353 PTR sys_mq_unlink
354 PTR sys_mq_timedsend
355 PTR sys_mq_timedreceive
356 PTR sys_mq_notify
357 PTR sys_mq_getsetattr /* 5235 */
358 PTR sys_ni_syscall /* sys_vserver */
359 PTR sys_waitid
360 PTR sys_ni_syscall /* available, was setaltroot */
361 PTR sys_add_key
362 PTR sys_request_key /* 5240 */
363 PTR sys_keyctl
Ralf Baechle3c370262005-04-13 17:43:59 +0000[diff] [blame]364 PTR sys_set_thread_area
Ralf Baechle7db36c82005-07-13 11:48:45 +0000[diff] [blame]365 PTR sys_inotify_init
366 PTR sys_inotify_add_watch
367 PTR sys_inotify_rm_watch /* 5245 */
Ralf Baechle72bf8912006-02-08 13:38:50 +0000[diff] [blame]368 PTR sys_migrate_pages
369 PTR sys_openat
370 PTR sys_mkdirat
371 PTR sys_mknodat
372 PTR sys_fchownat /* 5250 */
373 PTR sys_futimesat
374 PTR sys_newfstatat
375 PTR sys_unlinkat
376 PTR sys_renameat
377 PTR sys_linkat /* 5255 */
378 PTR sys_symlinkat
379 PTR sys_readlinkat
380 PTR sys_fchmodat
381 PTR sys_faccessat
382 PTR sys_pselect6 /* 5260 */
383 PTR sys_ppoll
384 PTR sys_unshare
Ralf Baechlef115da92006-03-31 09:27:20 +0100[diff] [blame]385 PTR sys_splice
Ralf Baechlea8d587a2006-04-01 07:49:21 +0100[diff] [blame]386 PTR sys_sync_file_range
Ralf Baechle136d47d2006-04-15 11:16:19 +0200[diff] [blame]387 PTR sys_tee /* 5265 */
Ralf Baechle722cfd92006-07-02 16:31:14 +0100[diff] [blame]388 PTR sys_vmsplice
389 PTR sys_move_pages
Atsushi Nemoto7fdeb042006-09-06 22:42:02 +0900[diff] [blame]390 PTR sys_set_robust_list
391 PTR sys_get_robust_list
Nicolas Schichan583bb862006-10-18 15:14:55 +0200[diff] [blame]392 PTR sys_kexec_load /* 5270 */
Ralf Baechle991ea262006-10-29 21:07:40 +0000[diff] [blame]393 PTR sys_getcpu
Ralf Baechlee016c382007-02-24 21:15:11 +0000[diff] [blame]394 PTR sys_epoll_pwait
Ralf Baechle08253b32007-03-06 17:04:49 +0000[diff] [blame]395 PTR sys_ioprio_set
396 PTR sys_ioprio_get
Atsushi Nemoto7a6d4f32007-05-29 23:29:40 +0900[diff] [blame]397 PTR sys_utimensat /* 5275 */
398 PTR sys_signalfd
Ralf Baechle8bdd5142011-04-13 20:50:46 +0200[diff] [blame]399 PTR sys_ni_syscall /* was timerfd */
Atsushi Nemoto7a6d4f32007-05-29 23:29:40 +0900[diff] [blame]400 PTR sys_eventfd
Ralf Baechle4dc46772007-07-26 03:38:24 +0100[diff] [blame]401 PTR sys_fallocate
Dmitri Vorobiev6783fe62008-02-19 00:02:37 +0300[diff] [blame]402 PTR sys_timerfd_create /* 5280 */
403 PTR sys_timerfd_gettime
404 PTR sys_timerfd_settime
Ralf Baechle3885b712008-07-31 11:16:43 +0100[diff] [blame]405 PTR sys_signalfd4
406 PTR sys_eventfd2
407 PTR sys_epoll_create1 /* 5285 */
408 PTR sys_dup3
409 PTR sys_pipe2
410 PTR sys_inotify_init1
Ralf Baechleddd9e912009-04-02 16:59:24 -0700[diff] [blame]411 PTR sys_preadv
Ralf Baechlee080e612010-09-20 15:00:19 +0100[diff] [blame]412 PTR sys_pwritev /* 5290 */
David Daney69f16c92009-06-26 09:53:57 -0700[diff] [blame]413 PTR sys_rt_tgsigqueueinfo
Ingo Molnarcdd6c482009-09-21 12:02:48 +0200[diff] [blame]414 PTR sys_perf_event_open
Ralf Baechle54822de2009-08-03 17:27:19 +0100[diff] [blame]415 PTR sys_accept4
David Daney5e844b32010-08-23 14:10:37 -0700[diff] [blame]416 PTR sys_recvmmsg
Ralf Baechlee080e612010-09-20 15:00:19 +0100[diff] [blame]417 PTR sys_fanotify_init /* 5295 */
David Daney5e844b32010-08-23 14:10:37 -0700[diff] [blame]418 PTR sys_fanotify_mark
419 PTR sys_prlimit64
David Daney84ed9432011-03-18 10:37:23 -0700[diff] [blame]420 PTR sys_name_to_handle_at
421 PTR sys_open_by_handle_at
422 PTR sys_clock_adjtime /* 5300 */
Ralf Baechle1bbf2872011-03-25 18:45:20 +0100[diff] [blame]423 PTR sys_syncfs
Ralf Baechleb12acf12011-05-28 13:22:58 +0100[diff] [blame]424 PTR sys_sendmmsg
Eric W. Biederman7b21fdd2011-05-27 19:28:27 -0700[diff] [blame]425 PTR sys_setns
David Daney8ff85842011-11-08 14:54:55 -0800[diff] [blame]426 PTR sys_process_vm_readv
427 PTR sys_process_vm_writev /* 5305 */
Ralf Baechlece71d242012-09-14 22:47:15 +0200[diff] [blame]428 PTR sys_kcmp
Ralf Baechle62951502012-12-28 17:02:56 +0100[diff] [blame]429 PTR sys_finit_module
Aron Xudec33ab2013-05-21 13:37:06 +0000[diff] [blame]430 PTR sys_getdents64
James Hogan67762542014-02-04 12:29:01 +0000[diff] [blame]431 PTR sys_sched_setattr
432 PTR sys_sched_getattr /* 5310 */
Ralf Baechle367f0b52014-05-13 17:56:41 +0200[diff] [blame]433 PTR sys_renameat2
Kees Cook8855d602014-06-10 15:45:09 -0700[diff] [blame]434 PTR sys_seccomp
Ralf Baechle42944522014-08-26 03:03:40 +0200[diff] [blame]435 PTR sys_getrandom
436 PTR sys_memfd_create
Ralf Baechle5df4c8d2014-10-27 03:35:53 +0100[diff] [blame]437 PTR sys_bpf /* 5315 */
Ralf Baechle389cdc52014-12-17 12:34:04 +0100[diff] [blame^]438 PTR sys_execveat
Ralf Baechle08253b32007-03-06 17:04:49 +0000[diff] [blame]439 .size sys_call_table,.-sys_call_table