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
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.
10 #include <linux/errno.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/thread_info.h>
18 #include <asm/unistd.h>
20 /* This duplicates the definition from <linux/sched.h> */
21 #define PT_TRACESYS 0x00000002 /* tracing system calls */
23 /* This duplicates the definition from <asm/signal.h> */
24 #define SIGILL 4 /* Illegal instruction (ANSI). */
26 #ifndef CONFIG_MIPS32_O32
27 /* No O32, so define handle_sys here */
28 #define handle_sysn32 handle_sys
32 NESTED(handle_sysn32, PT_SIZE, sp)
33 #ifndef CONFIG_MIPS32_O32
41 dsubu t0, v0, __NR_N32_Linux # check syscall number
42 sltiu t0, t0, __NR_N32_Linux_syscalls + 1
44 #ifndef CONFIG_MIPS32_O32
45 ld t1, PT_EPC(sp) # skip syscall on return
46 daddiu t1, 4 # skip to next instruction
49 beqz t0, not_n32_scall
51 dsll t0, v0, 3 # offset into table
52 ld t2, (sysn32_call_table - (__NR_N32_Linux * 8))(t0)
54 sd a3, PT_R26(sp) # save a3 for syscall restarting
56 li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
57 LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
59 bnez t0, n32_syscall_trace_entry
61 jalr t2 # Do The Real Thing (TM)
63 li t0, -EMAXERRNO - 1 # error?
65 sd t0, PT_R7(sp) # set error flag
69 sd v0, PT_R0(sp) # set flag for syscall restarting
70 1: sd v0, PT_R2(sp) # result
72 local_irq_disable # make sure need_resched and
73 # signals dont change between
75 LONG_L a2, TI_FLAGS($28) # current->work
76 li t0, _TIF_ALLWORK_MASK
78 bnez t0, n32_syscall_exit_work
82 n32_syscall_exit_work:
83 j syscall_exit_work_partial
85 /* ------------------------------------------------------------------------ */
87 n32_syscall_trace_entry:
96 ld a0, PT_R4(sp) # Restore argument registers
104 li t0, -EMAXERRNO - 1 # error?
106 sd t0, PT_R7(sp) # set error flag
110 sd v0, PT_R0(sp) # set flag for syscall restarting
111 1: sd v0, PT_R2(sp) # result
116 /* This is not an n32 compatibility syscall, pass it on to
117 the n64 syscall handlers. */
122 EXPORT(sysn32_call_table)
123 PTR sys_read /* 6000 */
128 PTR sys_newfstat /* 6005 */
133 PTR sys_mprotect /* 6010 */
136 PTR sys32_rt_sigaction
137 PTR sys32_rt_sigprocmask
138 PTR compat_sys_ioctl /* 6015 */
142 PTR compat_sys_writev
143 PTR sys_access /* 6020 */
145 PTR compat_sys_select
148 PTR sys_msync /* 6025 */
153 PTR sys_shmctl /* 6030 */
157 PTR compat_sys_nanosleep
158 PTR compat_sys_getitimer /* 6035 */
159 PTR compat_sys_setitimer
163 PTR sys_socket /* 6040 */
168 PTR compat_sys_sendmsg /* 6045 */
169 PTR compat_sys_recvmsg
173 PTR sys_getsockname /* 6050 */
176 PTR compat_sys_setsockopt
178 PTR sys_clone /* 6055 */
183 PTR sys_kill /* 6060 */
188 PTR sys_shmdt /* 6065 */
193 PTR compat_sys_fcntl /* 6070 */
198 PTR sys_ftruncate /* 6075 */
199 PTR compat_sys_getdents
203 PTR sys_rename /* 6080 */
208 PTR sys_unlink /* 6085 */
213 PTR sys_chown /* 6090 */
217 PTR sys32_gettimeofday
218 PTR compat_sys_getrlimit /* 6095 */
219 PTR compat_sys_getrusage
223 PTR sys_getuid /* 6100 */
228 PTR sys_geteuid /* 6105 */
233 PTR sys_setsid /* 6110 */
238 PTR sys_setresuid /* 6115 */
243 PTR sys_setfsuid /* 6120 */
248 PTR sys32_rt_sigpending /* 6125 */
249 PTR compat_sys_rt_sigtimedwait
250 PTR sys_rt_sigqueueinfo
251 PTR sysn32_rt_sigsuspend
252 PTR sys32_sigaltstack
253 PTR compat_sys_utime /* 6130 */
255 PTR sys32_personality
257 PTR compat_sys_statfs
258 PTR compat_sys_fstatfs /* 6135 */
262 PTR sys_sched_setparam
263 PTR sys_sched_getparam /* 6140 */
264 PTR sys_sched_setscheduler
265 PTR sys_sched_getscheduler
266 PTR sys_sched_get_priority_max
267 PTR sys_sched_get_priority_min
268 PTR sys32_sched_rr_get_interval /* 6145 */
273 PTR sys_vhangup /* 6150 */
277 PTR compat_sys_adjtimex
278 PTR compat_sys_setrlimit /* 6155 */
282 PTR sys32_settimeofday
283 PTR sys_mount /* 6160 */
288 PTR sys_sethostname /* 6165 */
289 PTR sys_setdomainname
290 PTR sys_ni_syscall /* was create_module */
292 PTR sys_delete_module
293 PTR sys_ni_syscall /* 6170, was get_kernel_syms */
294 PTR sys_ni_syscall /* was query_module */
297 PTR sys_ni_syscall /* res. for getpmsg */
298 PTR sys_ni_syscall /* 6175 for putpmsg */
299 PTR sys_ni_syscall /* res. for afs_syscall */
300 PTR sys_ni_syscall /* res. for security */
303 PTR sys_setxattr /* 6180 */
308 PTR sys_fgetxattr /* 6185 */
313 PTR sys_lremovexattr /* 6190 */
318 PTR compat_sys_sched_setaffinity /* 6195 */
319 PTR compat_sys_sched_getaffinity
323 PTR sys_io_setup /* 6200 */
328 PTR sys_exit_group /* 6205 */
329 PTR sys_lookup_dcookie
333 PTR sys_remap_file_pages /* 6210 */
334 PTR sysn32_rt_sigreturn
335 PTR compat_sys_fcntl64
336 PTR sys_set_tid_address
337 PTR sys_restart_syscall
338 PTR sys_semtimedop /* 6215 */
340 PTR compat_sys_statfs64
341 PTR compat_sys_fstatfs64
343 PTR sys32_timer_create /* 6220 */
344 PTR compat_sys_timer_settime
345 PTR compat_sys_timer_gettime
346 PTR sys_timer_getoverrun
348 PTR compat_sys_clock_settime /* 6225 */
349 PTR compat_sys_clock_gettime
350 PTR compat_sys_clock_getres
351 PTR compat_sys_clock_nanosleep
353 PTR compat_sys_utimes /* 6230 */
354 PTR sys_ni_syscall /* sys_mbind */
355 PTR sys_ni_syscall /* sys_get_mempolicy */
356 PTR sys_ni_syscall /* sys_set_mempolicy */
357 PTR compat_sys_mq_open
358 PTR sys_mq_unlink /* 6235 */
359 PTR compat_sys_mq_timedsend
360 PTR compat_sys_mq_timedreceive
361 PTR compat_sys_mq_notify
362 PTR compat_sys_mq_getsetattr
363 PTR sys_ni_syscall /* 6240, sys_vserver */
365 PTR sys_ni_syscall /* available, was setaltroot */
368 PTR sys_keyctl /* 6245 */
369 PTR sys_set_thread_area
371 PTR sys_inotify_add_watch
372 PTR sys_inotify_rm_watch
373 PTR sys_migrate_pages /* 6250 */
378 PTR sys_futimesat /* 6255 */
383 PTR sys_symlinkat /* 6260 */
388 PTR sys_ppoll /* 6265 */
391 PTR sys_sync_file_range
393 PTR sys_vmsplice /* 6271 */