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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 */
10#include <linux/errno.h>
11#include <asm/asm.h>
12#include <asm/asmmacro.h>
13#include <asm/irqflags.h>
14#include <asm/mipsregs.h>
15#include <asm/regdef.h>
16#include <asm/stackframe.h>
17#include <asm/asm-offsets.h>
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
37 TRACE_IRQS_ON_RELOAD
38 STI
39 .set at
40#endif
41
42#if !defined(CONFIG_MIPS32_O32) && !defined(CONFIG_MIPS32_N32)
43 ld t1, PT_EPC(sp) # skip syscall on return
44 daddiu t1, 4 # skip to next instruction
45 sd t1, PT_EPC(sp)
46#endif
47
48 sd a3, PT_R26(sp) # save a3 for syscall restarting
49
50 li t1, _TIF_WORK_SYSCALL_ENTRY
51 LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
52 and t0, t1, t0
53 bnez t0, syscall_trace_entry
54
55syscall_common:
56 dsubu t2, v0, __NR_64_Linux
57 sltiu t0, t2, __NR_64_Linux_syscalls + 1
58 beqz t0, illegal_syscall
59
60 dsll t0, t2, 3 # offset into table
61 dla t2, sys_call_table
62 daddu t0, t2, t0
63 ld t2, (t0) # syscall routine
64 beqz t2, illegal_syscall
65
66 jalr t2 # Do The Real Thing (TM)
67
68 li t0, -EMAXERRNO - 1 # error?
69 sltu t0, t0, v0
70 sd t0, PT_R7(sp) # set error flag
71 beqz t0, 1f
72
73 ld t1, PT_R2(sp) # syscall number
74 dnegu v0 # error
75 sd t1, PT_R0(sp) # save it for syscall restarting
761: sd v0, PT_R2(sp) # result
77
78n64_syscall_exit:
79 j syscall_exit_partial
80
81/* ------------------------------------------------------------------------ */
82
83syscall_trace_entry:
84 SAVE_STATIC
85 move s0, v0
86 move a0, sp
87 move a1, v0
88 jal syscall_trace_enter
89
90 bltz v0, 1f # seccomp failed? Skip syscall
91
92 move v0, s0
93 RESTORE_STATIC
94 ld a0, PT_R4(sp) # Restore argument registers
95 ld a1, PT_R5(sp)
96 ld a2, PT_R6(sp)
97 ld a3, PT_R7(sp)
98 ld a4, PT_R8(sp)
99 ld a5, PT_R9(sp)
100 j syscall_common
101
1021: j syscall_exit
103
104illegal_syscall:
105 /* This also isn't a 64-bit syscall, throw an error. */
106 li v0, ENOSYS # error
107 sd v0, PT_R2(sp)
108 li t0, 1 # set error flag
109 sd t0, PT_R7(sp)
110 j n64_syscall_exit
111 END(handle_sys64)
112
113 .align 3
114 .type sys_call_table, @object
115EXPORT(sys_call_table)
116 PTR sys_read /* 5000 */
117 PTR sys_write
118 PTR sys_open
119 PTR sys_close
120 PTR sys_newstat
121 PTR sys_newfstat /* 5005 */
122 PTR sys_newlstat
123 PTR sys_poll
124 PTR sys_lseek
125 PTR sys_mips_mmap
126 PTR sys_mprotect /* 5010 */
127 PTR sys_munmap
128 PTR sys_brk
129 PTR sys_rt_sigaction
130 PTR sys_rt_sigprocmask
131 PTR sys_ioctl /* 5015 */
132 PTR sys_pread64
133 PTR sys_pwrite64
134 PTR sys_readv
135 PTR sys_writev
136 PTR sys_access /* 5020 */
137 PTR sysm_pipe
138 PTR sys_select
139 PTR sys_sched_yield
140 PTR sys_mremap
141 PTR sys_msync /* 5025 */
142 PTR sys_mincore
143 PTR sys_madvise
144 PTR sys_shmget
145 PTR sys_shmat
146 PTR sys_shmctl /* 5030 */
147 PTR sys_dup
148 PTR sys_dup2
149 PTR sys_pause
150 PTR sys_nanosleep
151 PTR sys_getitimer /* 5035 */
152 PTR sys_setitimer
153 PTR sys_alarm
154 PTR sys_getpid
155 PTR sys_sendfile64
156 PTR sys_socket /* 5040 */
157 PTR sys_connect
158 PTR sys_accept
159 PTR sys_sendto
160 PTR sys_recvfrom
161 PTR sys_sendmsg /* 5045 */
162 PTR sys_recvmsg
163 PTR sys_shutdown
164 PTR sys_bind
165 PTR sys_listen
166 PTR sys_getsockname /* 5050 */
167 PTR sys_getpeername
168 PTR sys_socketpair
169 PTR sys_setsockopt
170 PTR sys_getsockopt
171 PTR __sys_clone /* 5055 */
172 PTR __sys_fork
173 PTR sys_execve
174 PTR sys_exit
175 PTR sys_wait4
176 PTR sys_kill /* 5060 */
177 PTR sys_newuname
178 PTR sys_semget
179 PTR sys_semop
180 PTR sys_semctl
181 PTR sys_shmdt /* 5065 */
182 PTR sys_msgget
183 PTR sys_msgsnd
184 PTR sys_msgrcv
185 PTR sys_msgctl
186 PTR sys_fcntl /* 5070 */
187 PTR sys_flock
188 PTR sys_fsync
189 PTR sys_fdatasync
190 PTR sys_truncate
191 PTR sys_ftruncate /* 5075 */
192 PTR sys_getdents
193 PTR sys_getcwd
194 PTR sys_chdir
195 PTR sys_fchdir
196 PTR sys_rename /* 5080 */
197 PTR sys_mkdir
198 PTR sys_rmdir
199 PTR sys_creat
200 PTR sys_link
201 PTR sys_unlink /* 5085 */
202 PTR sys_symlink
203 PTR sys_readlink
204 PTR sys_chmod
205 PTR sys_fchmod
206 PTR sys_chown /* 5090 */
207 PTR sys_fchown
208 PTR sys_lchown
209 PTR sys_umask
210 PTR sys_gettimeofday
211 PTR sys_getrlimit /* 5095 */
212 PTR sys_getrusage
213 PTR sys_sysinfo
214 PTR sys_times
215 PTR sys_ptrace
216 PTR sys_getuid /* 5100 */
217 PTR sys_syslog
218 PTR sys_getgid
219 PTR sys_setuid
220 PTR sys_setgid
221 PTR sys_geteuid /* 5105 */
222 PTR sys_getegid
223 PTR sys_setpgid
224 PTR sys_getppid
225 PTR sys_getpgrp
226 PTR sys_setsid /* 5110 */
227 PTR sys_setreuid
228 PTR sys_setregid
229 PTR sys_getgroups
230 PTR sys_setgroups
231 PTR sys_setresuid /* 5115 */
232 PTR sys_getresuid
233 PTR sys_setresgid
234 PTR sys_getresgid
235 PTR sys_getpgid
236 PTR sys_setfsuid /* 5120 */
237 PTR sys_setfsgid
238 PTR sys_getsid
239 PTR sys_capget
240 PTR sys_capset
241 PTR sys_rt_sigpending /* 5125 */
242 PTR sys_rt_sigtimedwait
243 PTR sys_rt_sigqueueinfo
244 PTR sys_rt_sigsuspend
245 PTR sys_sigaltstack
246 PTR sys_utime /* 5130 */
247 PTR sys_mknod
248 PTR sys_personality
249 PTR sys_ustat
250 PTR sys_statfs
251 PTR sys_fstatfs /* 5135 */
252 PTR sys_sysfs
253 PTR sys_getpriority
254 PTR sys_setpriority
255 PTR sys_sched_setparam
256 PTR sys_sched_getparam /* 5140 */
257 PTR sys_sched_setscheduler
258 PTR sys_sched_getscheduler
259 PTR sys_sched_get_priority_max
260 PTR sys_sched_get_priority_min
261 PTR sys_sched_rr_get_interval /* 5145 */
262 PTR sys_mlock
263 PTR sys_munlock
264 PTR sys_mlockall
265 PTR sys_munlockall
266 PTR sys_vhangup /* 5150 */
267 PTR sys_pivot_root
268 PTR sys_sysctl
269 PTR sys_prctl
270 PTR sys_adjtimex
271 PTR sys_setrlimit /* 5155 */
272 PTR sys_chroot
273 PTR sys_sync
274 PTR sys_acct
275 PTR sys_settimeofday
276 PTR sys_mount /* 5160 */
277 PTR sys_umount
278 PTR sys_swapon
279 PTR sys_swapoff
280 PTR sys_reboot
281 PTR sys_sethostname /* 5165 */
282 PTR sys_setdomainname
283 PTR sys_ni_syscall /* was create_module */
284 PTR sys_init_module
285 PTR sys_delete_module
286 PTR sys_ni_syscall /* 5170, was get_kernel_syms */
287 PTR sys_ni_syscall /* was query_module */
288 PTR sys_quotactl
289 PTR sys_ni_syscall /* was nfsservctl */
290 PTR sys_ni_syscall /* res. for getpmsg */
291 PTR sys_ni_syscall /* 5175 for putpmsg */
292 PTR sys_ni_syscall /* res. for afs_syscall */
293 PTR sys_ni_syscall /* res. for security */
294 PTR sys_gettid
295 PTR sys_readahead
296 PTR sys_setxattr /* 5180 */
297 PTR sys_lsetxattr
298 PTR sys_fsetxattr
299 PTR sys_getxattr
300 PTR sys_lgetxattr
301 PTR sys_fgetxattr /* 5185 */
302 PTR sys_listxattr
303 PTR sys_llistxattr
304 PTR sys_flistxattr
305 PTR sys_removexattr
306 PTR sys_lremovexattr /* 5190 */
307 PTR sys_fremovexattr
308 PTR sys_tkill
309 PTR sys_ni_syscall
310 PTR sys_futex
311 PTR sys_sched_setaffinity /* 5195 */
312 PTR sys_sched_getaffinity
313 PTR sys_cacheflush
314 PTR sys_cachectl
315 PTR sys_sysmips
316 PTR sys_io_setup /* 5200 */
317 PTR sys_io_destroy
318 PTR sys_io_getevents
319 PTR sys_io_submit
320 PTR sys_io_cancel
321 PTR sys_exit_group /* 5205 */
322 PTR sys_lookup_dcookie
323 PTR sys_epoll_create
324 PTR sys_epoll_ctl
325 PTR sys_epoll_wait
326 PTR sys_remap_file_pages /* 5210 */
327 PTR sys_rt_sigreturn
328 PTR sys_set_tid_address
329 PTR sys_restart_syscall
330 PTR sys_semtimedop
331 PTR sys_fadvise64_64 /* 5215 */
332 PTR sys_timer_create
333 PTR sys_timer_settime
334 PTR sys_timer_gettime
335 PTR sys_timer_getoverrun
336 PTR sys_timer_delete /* 5220 */
337 PTR sys_clock_settime
338 PTR sys_clock_gettime
339 PTR sys_clock_getres
340 PTR sys_clock_nanosleep
341 PTR sys_tgkill /* 5225 */
342 PTR sys_utimes
343 PTR sys_mbind
344 PTR sys_get_mempolicy
345 PTR sys_set_mempolicy
346 PTR sys_mq_open /* 5230 */
347 PTR sys_mq_unlink
348 PTR sys_mq_timedsend
349 PTR sys_mq_timedreceive
350 PTR sys_mq_notify
351 PTR sys_mq_getsetattr /* 5235 */
352 PTR sys_ni_syscall /* sys_vserver */
353 PTR sys_waitid
354 PTR sys_ni_syscall /* available, was setaltroot */
355 PTR sys_add_key
356 PTR sys_request_key /* 5240 */
357 PTR sys_keyctl
358 PTR sys_set_thread_area
359 PTR sys_inotify_init
360 PTR sys_inotify_add_watch
361 PTR sys_inotify_rm_watch /* 5245 */
362 PTR sys_migrate_pages
363 PTR sys_openat
364 PTR sys_mkdirat
365 PTR sys_mknodat
366 PTR sys_fchownat /* 5250 */
367 PTR sys_futimesat
368 PTR sys_newfstatat
369 PTR sys_unlinkat
370 PTR sys_renameat
371 PTR sys_linkat /* 5255 */
372 PTR sys_symlinkat
373 PTR sys_readlinkat
374 PTR sys_fchmodat
375 PTR sys_faccessat
376 PTR sys_pselect6 /* 5260 */
377 PTR sys_ppoll
378 PTR sys_unshare
379 PTR sys_splice
380 PTR sys_sync_file_range
381 PTR sys_tee /* 5265 */
382 PTR sys_vmsplice
383 PTR sys_move_pages
384 PTR sys_set_robust_list
385 PTR sys_get_robust_list
386 PTR sys_kexec_load /* 5270 */
387 PTR sys_getcpu
388 PTR sys_epoll_pwait
389 PTR sys_ioprio_set
390 PTR sys_ioprio_get
391 PTR sys_utimensat /* 5275 */
392 PTR sys_signalfd
393 PTR sys_ni_syscall /* was timerfd */
394 PTR sys_eventfd
395 PTR sys_fallocate
396 PTR sys_timerfd_create /* 5280 */
397 PTR sys_timerfd_gettime
398 PTR sys_timerfd_settime
399 PTR sys_signalfd4
400 PTR sys_eventfd2
401 PTR sys_epoll_create1 /* 5285 */
402 PTR sys_dup3
403 PTR sys_pipe2
404 PTR sys_inotify_init1
405 PTR sys_preadv
406 PTR sys_pwritev /* 5290 */
407 PTR sys_rt_tgsigqueueinfo
408 PTR sys_perf_event_open
409 PTR sys_accept4
410 PTR sys_recvmmsg
411 PTR sys_fanotify_init /* 5295 */
412 PTR sys_fanotify_mark
413 PTR sys_prlimit64
414 PTR sys_name_to_handle_at
415 PTR sys_open_by_handle_at
416 PTR sys_clock_adjtime /* 5300 */
417 PTR sys_syncfs
418 PTR sys_sendmmsg
419 PTR sys_setns
420 PTR sys_process_vm_readv
421 PTR sys_process_vm_writev /* 5305 */
422 PTR sys_kcmp
423 PTR sys_finit_module
424 PTR sys_getdents64
425 PTR sys_sched_setattr
426 PTR sys_sched_getattr /* 5310 */
427 PTR sys_renameat2
428 PTR sys_seccomp
429 PTR sys_getrandom
430 PTR sys_memfd_create
431 PTR sys_bpf /* 5315 */
432 PTR sys_execveat
433 PTR sys_userfaultfd
434 PTR sys_membarrier
435 PTR sys_mlock2
436 PTR sys_copy_file_range /* 5320 */
437 PTR sys_preadv2
438 PTR sys_pwritev2
439 .size sys_call_table,.-sys_call_table