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/mipsregs.h>
14 #include <asm/regdef.h>
15 #include <asm/stackframe.h>
16 #include <asm/thread_info.h>
17 #include <asm/unistd.h>
19 /* This duplicates the definition from <linux/sched.h> */
20 #define PT_TRACESYS 0x00000002 /* tracing system calls */
22 /* This duplicates the definition from <asm/signal.h> */
23 #define SIGILL 4 /* Illegal instruction (ANSI). */
25 #ifndef CONFIG_MIPS32_O32
26 /* No O32, so define handle_sys here */
27 #define handle_sysn32 handle_sys
31 NESTED(handle_sysn32, PT_SIZE, sp)
32 #ifndef CONFIG_MIPS32_O32
39 dsubu t0, v0, __NR_N32_Linux # check syscall number
40 sltiu t0, t0, __NR_N32_Linux_syscalls + 1
42 #ifndef CONFIG_MIPS32_O32
43 ld t1, PT_EPC(sp) # skip syscall on return
44 daddiu t1, 4 # skip to next instruction
47 beqz t0, not_n32_scall
49 dsll t0, v0, 3 # offset into table
50 ld t2, (sysn32_call_table - (__NR_N32_Linux * 8))(t0)
52 sd a3, PT_R26(sp) # save a3 for syscall restarting
54 li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
55 LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
57 bnez t0, n32_syscall_trace_entry
59 jalr t2 # Do The Real Thing (TM)
61 li t0, -EMAXERRNO - 1 # error?
63 sd t0, PT_R7(sp) # set error flag
67 sd v0, PT_R0(sp) # set flag for syscall restarting
68 1: sd v0, PT_R2(sp) # result
70 local_irq_disable # make sure need_resched and
71 # signals dont change between
73 LONG_L a2, TI_FLAGS($28) # current->work
74 li t0, _TIF_ALLWORK_MASK
76 bnez t0, n32_syscall_exit_work
80 n32_syscall_exit_work:
81 j syscall_exit_work_partial
83 /* ------------------------------------------------------------------------ */
85 n32_syscall_trace_entry:
94 ld a0, PT_R4(sp) # Restore argument registers
102 li t0, -EMAXERRNO - 1 # error?
104 sd t0, PT_R7(sp) # set error flag
108 sd v0, PT_R0(sp) # set flag for syscall restarting
109 1: sd v0, PT_R2(sp) # result
114 /* This is not an n32 compatibility syscall, pass it on to
115 the n64 syscall handlers. */
120 EXPORT(sysn32_call_table)
121 PTR sys_read /* 6000 */
126 PTR sys_newfstat /* 6005 */
131 PTR sys_mprotect /* 6010 */
134 PTR sys32_rt_sigaction
135 PTR sys32_rt_sigprocmask
136 PTR compat_sys_ioctl /* 6015 */
140 PTR compat_sys_writev
141 PTR sys_access /* 6020 */
143 PTR compat_sys_select
146 PTR sys_msync /* 6025 */
151 PTR sys_shmctl /* 6030 */
155 PTR compat_sys_nanosleep
156 PTR compat_sys_getitimer /* 6035 */
157 PTR compat_sys_setitimer
161 PTR sys_socket /* 6040 */
166 PTR compat_sys_sendmsg /* 6045 */
167 PTR compat_sys_recvmsg
171 PTR sys_getsockname /* 6050 */
174 PTR compat_sys_setsockopt
176 PTR sys_clone /* 6055 */
181 PTR sys_kill /* 6060 */
186 PTR sys_shmdt /* 6065 */
191 PTR compat_sys_fcntl /* 6070 */
196 PTR sys_ftruncate /* 6075 */
197 PTR compat_sys_getdents
201 PTR sys_rename /* 6080 */
206 PTR sys_unlink /* 6085 */
211 PTR sys_chown /* 6090 */
215 PTR sys32_gettimeofday
216 PTR compat_sys_getrlimit /* 6095 */
217 PTR compat_sys_getrusage
221 PTR sys_getuid /* 6100 */
226 PTR sys_geteuid /* 6105 */
231 PTR sys_setsid /* 6110 */
236 PTR sys_setresuid /* 6115 */
241 PTR sys_setfsuid /* 6120 */
246 PTR sys32_rt_sigpending /* 6125 */
247 PTR compat_sys_rt_sigtimedwait
248 PTR sys_rt_sigqueueinfo
249 PTR sysn32_rt_sigsuspend
250 PTR sys32_sigaltstack
251 PTR compat_sys_utime /* 6130 */
253 PTR sys32_personality
255 PTR compat_sys_statfs
256 PTR compat_sys_fstatfs /* 6135 */
260 PTR sys_sched_setparam
261 PTR sys_sched_getparam /* 6140 */
262 PTR sys_sched_setscheduler
263 PTR sys_sched_getscheduler
264 PTR sys_sched_get_priority_max
265 PTR sys_sched_get_priority_min
266 PTR sys32_sched_rr_get_interval /* 6145 */
271 PTR sys_vhangup /* 6150 */
275 PTR compat_sys_adjtimex
276 PTR compat_sys_setrlimit /* 6155 */
280 PTR sys32_settimeofday
281 PTR sys_mount /* 6160 */
286 PTR sys_sethostname /* 6165 */
287 PTR sys_setdomainname
288 PTR sys_ni_syscall /* was create_module */
290 PTR sys_delete_module
291 PTR sys_ni_syscall /* 6170, was get_kernel_syms */
292 PTR sys_ni_syscall /* was query_module */
295 PTR sys_ni_syscall /* res. for getpmsg */
296 PTR sys_ni_syscall /* 6175 for putpmsg */
297 PTR sys_ni_syscall /* res. for afs_syscall */
298 PTR sys_ni_syscall /* res. for security */
301 PTR sys_setxattr /* 6180 */
306 PTR sys_fgetxattr /* 6185 */
311 PTR sys_lremovexattr /* 6190 */
316 PTR compat_sys_sched_setaffinity /* 6195 */
317 PTR compat_sys_sched_getaffinity
321 PTR sys_io_setup /* 6200 */
326 PTR sys_exit_group /* 6205 */
327 PTR sys_lookup_dcookie
331 PTR sys_remap_file_pages /* 6210 */
332 PTR sysn32_rt_sigreturn
333 PTR compat_sys_fcntl64
334 PTR sys_set_tid_address
335 PTR sys_restart_syscall
336 PTR sys_semtimedop /* 6215 */
338 PTR compat_sys_statfs64
339 PTR compat_sys_fstatfs64
341 PTR sys32_timer_create /* 6220 */
342 PTR compat_sys_timer_settime
343 PTR compat_sys_timer_gettime
344 PTR sys_timer_getoverrun
346 PTR compat_sys_clock_settime /* 6225 */
347 PTR compat_sys_clock_gettime
348 PTR compat_sys_clock_getres
349 PTR compat_sys_clock_nanosleep
351 PTR compat_sys_utimes /* 6230 */
352 PTR sys_ni_syscall /* sys_mbind */
353 PTR sys_ni_syscall /* sys_get_mempolicy */
354 PTR sys_ni_syscall /* sys_set_mempolicy */
355 PTR compat_sys_mq_open
356 PTR sys_mq_unlink /* 6235 */
357 PTR compat_sys_mq_timedsend
358 PTR compat_sys_mq_timedreceive
359 PTR compat_sys_mq_notify
360 PTR compat_sys_mq_getsetattr
361 PTR sys_ni_syscall /* 6240, sys_vserver */
363 PTR sys_ni_syscall /* available, was setaltroot */
366 PTR sys_keyctl /* 6245 */
367 PTR sys_set_thread_area
369 PTR sys_inotify_add_watch
370 PTR sys_inotify_rm_watch
371 PTR sys_migrate_pages /* 6250 */
376 PTR sys_futimesat /* 6255 */
381 PTR sys_symlinkat /* 6260 */
386 PTR sys_ppoll /* 6265 */
389 PTR sys_sync_file_range