Gitiles
Code Review Sign In
review.evervolv.com / android_kernel_oneplus_msm8996 / 050ea48bbfc80b6aa81f8df0d9f25e6e47d96e98 / . / arch / mips / kernel / scall64-64.S
blob: 3b5a5e9ae49c132640c95a87037e48ac95e5b932 [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
28 .align 5
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
43 sltiu t0, t0, __NR_64_Linux_syscalls + 1
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
57 li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
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:
75 local_irq_disable # make sure need_resched and
76 # signals dont change between
77 # sampling and return
78 LONG_L a2, TI_FLAGS($28) # current->work
79 li t0, _TIF_ALLWORK_MASK
80 and t0, a2, t0
81 bnez t0, n64_syscall_exit_work
82
83 j restore_partial
84
85n64_syscall_exit_work:
86 j syscall_exit_work_partial
87
88/* ------------------------------------------------------------------------ */
89
90syscall_trace_entry:
91 SAVE_STATIC
92 move s0, t2
93 move a0, sp
Ralf Baechle8b659a32011-05-19 09:21:29 +0100[diff] [blame]94 jal syscall_trace_enter
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]95
Ralf Baechle04a70522005-11-30 16:24:57 +0000[diff] [blame]96 move t0, s0
97 RESTORE_STATIC
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]98 ld a0, PT_R4(sp) # Restore argument registers
99 ld a1, PT_R5(sp)
100 ld a2, PT_R6(sp)
101 ld a3, PT_R7(sp)
102 ld a4, PT_R8(sp)
103 ld a5, PT_R9(sp)
Ralf Baechle04a70522005-11-30 16:24:57 +0000[diff] [blame]104 jalr t0
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]105
106 li t0, -EMAXERRNO - 1 # error?
107 sltu t0, t0, v0
108 sd t0, PT_R7(sp) # set error flag
109 beqz t0, 1f
110
Al Viro8f5a00eb2010-09-28 18:50:37 +0100[diff] [blame]111 ld t1, PT_R2(sp) # syscall number
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]112 dnegu v0 # error
Al Viro8f5a00eb2010-09-28 18:50:37 +0100[diff] [blame]113 sd t1, PT_R0(sp) # save it for syscall restarting
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1141: sd v0, PT_R2(sp) # result
115
116 j syscall_exit
117
118illegal_syscall:
119 /* This also isn't a 64-bit syscall, throw an error. */
Atsushi Nemotobda82292008-10-25 01:17:22 +0900[diff] [blame]120 li v0, ENOSYS # error
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]121 sd v0, PT_R2(sp)
122 li t0, 1 # set error flag
123 sd t0, PT_R7(sp)
124 j n64_syscall_exit
125 END(handle_sys64)
126
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]127 .align 3
128sys_call_table:
129 PTR sys_read /* 5000 */
130 PTR sys_write
131 PTR sys_open
132 PTR sys_close
133 PTR sys_newstat
134 PTR sys_newfstat /* 5005 */
135 PTR sys_newlstat
136 PTR sys_poll
137 PTR sys_lseek
Ralf Baechledbda6ac2009-02-08 16:00:26 +0000[diff] [blame]138 PTR sys_mips_mmap
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]139 PTR sys_mprotect /* 5010 */
140 PTR sys_munmap
141 PTR sys_brk
142 PTR sys_rt_sigaction
143 PTR sys_rt_sigprocmask
144 PTR sys_ioctl /* 5015 */
145 PTR sys_pread64
146 PTR sys_pwrite64
147 PTR sys_readv
148 PTR sys_writev
149 PTR sys_access /* 5020 */
Ralf Baechle8213bbf2008-07-20 13:16:46 +0100[diff] [blame]150 PTR sysm_pipe
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]151 PTR sys_select
152 PTR sys_sched_yield
153 PTR sys_mremap
154 PTR sys_msync /* 5025 */
155 PTR sys_mincore
156 PTR sys_madvise
157 PTR sys_shmget
158 PTR sys_shmat
159 PTR sys_shmctl /* 5030 */
160 PTR sys_dup
161 PTR sys_dup2
162 PTR sys_pause
163 PTR sys_nanosleep
164 PTR sys_getitimer /* 5035 */
165 PTR sys_setitimer
166 PTR sys_alarm
167 PTR sys_getpid
168 PTR sys_sendfile64
169 PTR sys_socket /* 5040 */
170 PTR sys_connect
171 PTR sys_accept
172 PTR sys_sendto
173 PTR sys_recvfrom
174 PTR sys_sendmsg /* 5045 */
175 PTR sys_recvmsg
176 PTR sys_shutdown
177 PTR sys_bind
178 PTR sys_listen
179 PTR sys_getsockname /* 5050 */
180 PTR sys_getpeername
181 PTR sys_socketpair
182 PTR sys_setsockopt
183 PTR sys_getsockopt
184 PTR sys_clone /* 5055 */
185 PTR sys_fork
186 PTR sys_execve
187 PTR sys_exit
188 PTR sys_wait4
189 PTR sys_kill /* 5060 */
190 PTR sys_newuname
191 PTR sys_semget
192 PTR sys_semop
193 PTR sys_semctl
194 PTR sys_shmdt /* 5065 */
195 PTR sys_msgget
196 PTR sys_msgsnd
197 PTR sys_msgrcv
198 PTR sys_msgctl
199 PTR sys_fcntl /* 5070 */
200 PTR sys_flock
201 PTR sys_fsync
202 PTR sys_fdatasync
203 PTR sys_truncate
204 PTR sys_ftruncate /* 5075 */
205 PTR sys_getdents
206 PTR sys_getcwd
207 PTR sys_chdir
208 PTR sys_fchdir
209 PTR sys_rename /* 5080 */
210 PTR sys_mkdir
211 PTR sys_rmdir
212 PTR sys_creat
213 PTR sys_link
214 PTR sys_unlink /* 5085 */
215 PTR sys_symlink
216 PTR sys_readlink
217 PTR sys_chmod
218 PTR sys_fchmod
219 PTR sys_chown /* 5090 */
220 PTR sys_fchown
221 PTR sys_lchown
222 PTR sys_umask
223 PTR sys_gettimeofday
224 PTR sys_getrlimit /* 5095 */
225 PTR sys_getrusage
226 PTR sys_sysinfo
227 PTR sys_times
228 PTR sys_ptrace
229 PTR sys_getuid /* 5100 */
230 PTR sys_syslog
231 PTR sys_getgid
232 PTR sys_setuid
233 PTR sys_setgid
234 PTR sys_geteuid /* 5105 */
235 PTR sys_getegid
236 PTR sys_setpgid
237 PTR sys_getppid
238 PTR sys_getpgrp
239 PTR sys_setsid /* 5110 */
240 PTR sys_setreuid
241 PTR sys_setregid
242 PTR sys_getgroups
243 PTR sys_setgroups
244 PTR sys_setresuid /* 5115 */
245 PTR sys_getresuid
246 PTR sys_setresgid
247 PTR sys_getresgid
248 PTR sys_getpgid
249 PTR sys_setfsuid /* 5120 */
250 PTR sys_setfsgid
251 PTR sys_getsid
252 PTR sys_capget
253 PTR sys_capset
254 PTR sys_rt_sigpending /* 5125 */
255 PTR sys_rt_sigtimedwait
256 PTR sys_rt_sigqueueinfo
257 PTR sys_rt_sigsuspend
258 PTR sys_sigaltstack
259 PTR sys_utime /* 5130 */
260 PTR sys_mknod
261 PTR sys_personality
262 PTR sys_ustat
263 PTR sys_statfs
264 PTR sys_fstatfs /* 5135 */
265 PTR sys_sysfs
266 PTR sys_getpriority
267 PTR sys_setpriority
268 PTR sys_sched_setparam
269 PTR sys_sched_getparam /* 5140 */
270 PTR sys_sched_setscheduler
271 PTR sys_sched_getscheduler
272 PTR sys_sched_get_priority_max
273 PTR sys_sched_get_priority_min
274 PTR sys_sched_rr_get_interval /* 5145 */
275 PTR sys_mlock
276 PTR sys_munlock
277 PTR sys_mlockall
278 PTR sys_munlockall
279 PTR sys_vhangup /* 5150 */
280 PTR sys_pivot_root
281 PTR sys_sysctl
282 PTR sys_prctl
283 PTR sys_adjtimex
284 PTR sys_setrlimit /* 5155 */
285 PTR sys_chroot
286 PTR sys_sync
287 PTR sys_acct
288 PTR sys_settimeofday
289 PTR sys_mount /* 5160 */
290 PTR sys_umount
291 PTR sys_swapon
292 PTR sys_swapoff
293 PTR sys_reboot
294 PTR sys_sethostname /* 5165 */
295 PTR sys_setdomainname
296 PTR sys_ni_syscall /* was create_module */
297 PTR sys_init_module
298 PTR sys_delete_module
299 PTR sys_ni_syscall /* 5170, was get_kernel_syms */
300 PTR sys_ni_syscall /* was query_module */
301 PTR sys_quotactl
NeilBrownf5b94092011-08-26 18:03:11 -0400[diff] [blame]302 PTR sys_ni_syscall /* was nfsservctl */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]303 PTR sys_ni_syscall /* res. for getpmsg */
304 PTR sys_ni_syscall /* 5175 for putpmsg */
305 PTR sys_ni_syscall /* res. for afs_syscall */
306 PTR sys_ni_syscall /* res. for security */
307 PTR sys_gettid
308 PTR sys_readahead
309 PTR sys_setxattr /* 5180 */
310 PTR sys_lsetxattr
311 PTR sys_fsetxattr
312 PTR sys_getxattr
313 PTR sys_lgetxattr
314 PTR sys_fgetxattr /* 5185 */
315 PTR sys_listxattr
316 PTR sys_llistxattr
317 PTR sys_flistxattr
318 PTR sys_removexattr
319 PTR sys_lremovexattr /* 5190 */
320 PTR sys_fremovexattr
321 PTR sys_tkill
322 PTR sys_ni_syscall
323 PTR sys_futex
324 PTR sys_sched_setaffinity /* 5195 */
325 PTR sys_sched_getaffinity
326 PTR sys_cacheflush
327 PTR sys_cachectl
328 PTR sys_sysmips
329 PTR sys_io_setup /* 5200 */
330 PTR sys_io_destroy
331 PTR sys_io_getevents
332 PTR sys_io_submit
333 PTR sys_io_cancel
334 PTR sys_exit_group /* 5205 */
335 PTR sys_lookup_dcookie
336 PTR sys_epoll_create
337 PTR sys_epoll_ctl
338 PTR sys_epoll_wait
339 PTR sys_remap_file_pages /* 5210 */
340 PTR sys_rt_sigreturn
341 PTR sys_set_tid_address
342 PTR sys_restart_syscall
343 PTR sys_semtimedop
344 PTR sys_fadvise64_64 /* 5215 */
345 PTR sys_timer_create
346 PTR sys_timer_settime
347 PTR sys_timer_gettime
348 PTR sys_timer_getoverrun
349 PTR sys_timer_delete /* 5220 */
350 PTR sys_clock_settime
351 PTR sys_clock_gettime
352 PTR sys_clock_getres
353 PTR sys_clock_nanosleep
354 PTR sys_tgkill /* 5225 */
355 PTR sys_utimes
356 PTR sys_mbind
357 PTR sys_ni_syscall /* sys_get_mempolicy */
358 PTR sys_ni_syscall /* sys_set_mempolicy */
359 PTR sys_mq_open /* 5230 */
360 PTR sys_mq_unlink
361 PTR sys_mq_timedsend
362 PTR sys_mq_timedreceive
363 PTR sys_mq_notify
364 PTR sys_mq_getsetattr /* 5235 */
365 PTR sys_ni_syscall /* sys_vserver */
366 PTR sys_waitid
367 PTR sys_ni_syscall /* available, was setaltroot */
368 PTR sys_add_key
369 PTR sys_request_key /* 5240 */
370 PTR sys_keyctl
Ralf Baechle3c370262005-04-13 17:43:59 +0000[diff] [blame]371 PTR sys_set_thread_area
Ralf Baechle7db36c82005-07-13 11:48:45 +0000[diff] [blame]372 PTR sys_inotify_init
373 PTR sys_inotify_add_watch
374 PTR sys_inotify_rm_watch /* 5245 */
Ralf Baechle72bf8912006-02-08 13:38:50 +0000[diff] [blame]375 PTR sys_migrate_pages
376 PTR sys_openat
377 PTR sys_mkdirat
378 PTR sys_mknodat
379 PTR sys_fchownat /* 5250 */
380 PTR sys_futimesat
381 PTR sys_newfstatat
382 PTR sys_unlinkat
383 PTR sys_renameat
384 PTR sys_linkat /* 5255 */
385 PTR sys_symlinkat
386 PTR sys_readlinkat
387 PTR sys_fchmodat
388 PTR sys_faccessat
389 PTR sys_pselect6 /* 5260 */
390 PTR sys_ppoll
391 PTR sys_unshare
Ralf Baechlef115da92006-03-31 09:27:20 +0100[diff] [blame]392 PTR sys_splice
Ralf Baechlea8d587a2006-04-01 07:49:21 +0100[diff] [blame]393 PTR sys_sync_file_range
Ralf Baechle136d47d2006-04-15 11:16:19 +0200[diff] [blame]394 PTR sys_tee /* 5265 */
Ralf Baechle722cfd92006-07-02 16:31:14 +0100[diff] [blame]395 PTR sys_vmsplice
396 PTR sys_move_pages
Atsushi Nemoto7fdeb042006-09-06 22:42:02 +0900[diff] [blame]397 PTR sys_set_robust_list
398 PTR sys_get_robust_list
Nicolas Schichan583bb862006-10-18 15:14:55 +0200[diff] [blame]399 PTR sys_kexec_load /* 5270 */
Ralf Baechle991ea262006-10-29 21:07:40 +0000[diff] [blame]400 PTR sys_getcpu
Ralf Baechlee016c382007-02-24 21:15:11 +0000[diff] [blame]401 PTR sys_epoll_pwait
Ralf Baechle08253b32007-03-06 17:04:49 +0000[diff] [blame]402 PTR sys_ioprio_set
403 PTR sys_ioprio_get
Atsushi Nemoto7a6d4f32007-05-29 23:29:40 +0900[diff] [blame]404 PTR sys_utimensat /* 5275 */
405 PTR sys_signalfd
Ralf Baechle8bdd5142011-04-13 20:50:46 +0200[diff] [blame]406 PTR sys_ni_syscall /* was timerfd */
Atsushi Nemoto7a6d4f32007-05-29 23:29:40 +0900[diff] [blame]407 PTR sys_eventfd
Ralf Baechle4dc46772007-07-26 03:38:24 +0100[diff] [blame]408 PTR sys_fallocate
Dmitri Vorobiev6783fe62008-02-19 00:02:37 +0300[diff] [blame]409 PTR sys_timerfd_create /* 5280 */
410 PTR sys_timerfd_gettime
411 PTR sys_timerfd_settime
Ralf Baechle3885b712008-07-31 11:16:43 +0100[diff] [blame]412 PTR sys_signalfd4
413 PTR sys_eventfd2
414 PTR sys_epoll_create1 /* 5285 */
415 PTR sys_dup3
416 PTR sys_pipe2
417 PTR sys_inotify_init1
Ralf Baechleddd9e912009-04-02 16:59:24 -0700[diff] [blame]418 PTR sys_preadv
Ralf Baechlee080e612010-09-20 15:00:19 +0100[diff] [blame]419 PTR sys_pwritev /* 5290 */
David Daney69f16c92009-06-26 09:53:57 -0700[diff] [blame]420 PTR sys_rt_tgsigqueueinfo
Ingo Molnarcdd6c482009-09-21 12:02:48 +0200[diff] [blame]421 PTR sys_perf_event_open
Ralf Baechle54822de2009-08-03 17:27:19 +0100[diff] [blame]422 PTR sys_accept4
David Daney5e844b32010-08-23 14:10:37 -0700[diff] [blame]423 PTR sys_recvmmsg
Ralf Baechlee080e612010-09-20 15:00:19 +0100[diff] [blame]424 PTR sys_fanotify_init /* 5295 */
David Daney5e844b32010-08-23 14:10:37 -0700[diff] [blame]425 PTR sys_fanotify_mark
426 PTR sys_prlimit64
David Daney84ed9432011-03-18 10:37:23 -0700[diff] [blame]427 PTR sys_name_to_handle_at
428 PTR sys_open_by_handle_at
429 PTR sys_clock_adjtime /* 5300 */
Ralf Baechle1bbf2872011-03-25 18:45:20 +0100[diff] [blame]430 PTR sys_syncfs
Ralf Baechleb12acf12011-05-28 13:22:58 +0100[diff] [blame]431 PTR sys_sendmmsg
Eric W. Biederman7b21fdd2011-05-27 19:28:27 -0700[diff] [blame]432 PTR sys_setns
David Daney8ff85842011-11-08 14:54:55 -0800[diff] [blame]433 PTR sys_process_vm_readv
434 PTR sys_process_vm_writev /* 5305 */
Ralf Baechle08253b32007-03-06 17:04:49 +0000[diff] [blame]435 .size sys_call_table,.-sys_call_table