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/config.h>
11 #include <linux/errno.h>
13 #include <asm/asmmacro.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
39 ld t1, PT_EPC(sp) # skip syscall on return
41 subu t0, v0, __NR_N32_Linux # check syscall number
42 sltiu t0, t0, __NR_N32_Linux_syscalls + 1
43 daddiu t1, 4 # skip to next instruction
44 beqz t0, not_n32_scall
47 dsll t0, v0, 3 # offset into table
48 ld t2, (sysn32_call_table - (__NR_N32_Linux * 8))(t0)
50 sd a3, PT_R26(sp) # save a3 for syscall restarting
52 LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
53 bltz t0, n32_syscall_trace_entry
55 jalr t2 # Do The Real Thing (TM)
57 li t0, -EMAXERRNO - 1 # error?
59 sd t0, PT_R7(sp) # set error flag
63 sd v0, PT_R0(sp) # set flag for syscall restarting
64 1: sd v0, PT_R2(sp) # result
66 FEXPORT(n32_syscall_exit)
67 local_irq_disable # make sure need_resched and
68 # signals dont change between
70 LONG_L a2, TI_FLAGS($28) # current->work
71 li t0, _TIF_ALLWORK_MASK
73 bnez t0, n32_syscall_exit_work
77 n32_syscall_exit_work:
78 j syscall_exit_work_partial
80 /* ------------------------------------------------------------------------ */
82 n32_syscall_trace_entry:
88 ld a0, PT_R4(sp) # Restore argument registers
94 li t0, -EMAXERRNO - 1 # error?
96 sd t0, PT_R7(sp) # set error flag
100 sd v0, PT_R0(sp) # set flag for syscall restarting
101 1: sd v0, PT_R2(sp) # result
106 /* This is not an n32 compatibility syscall, pass it on to
107 the n64 syscall handlers. */
112 EXPORT(sysn32_call_table)
113 PTR sys_read /* 6000 */
118 PTR sys_newfstat /* 6005 */
123 PTR sys_mprotect /* 6010 */
126 PTR sys32_rt_sigaction
127 PTR sys32_rt_sigprocmask
128 PTR compat_sys_ioctl /* 6015 */
133 PTR sys_access /* 6020 */
138 PTR sys_msync /* 6025 */
143 PTR sys_shmctl /* 6030 */
147 PTR compat_sys_nanosleep
148 PTR compat_sys_getitimer /* 6035 */
149 PTR compat_sys_setitimer
153 PTR sys_socket /* 6040 */
158 PTR compat_sys_sendmsg /* 6045 */
159 PTR compat_sys_recvmsg
163 PTR sys_getsockname /* 6050 */
166 PTR compat_sys_setsockopt
168 PTR sys_clone /* 6055 */
173 PTR sys_kill /* 6060 */
178 PTR sys_shmdt /* 6065 */
183 PTR compat_sys_fcntl /* 6070 */
188 PTR sys_ftruncate /* 6075 */
193 PTR sys_rename /* 6080 */
198 PTR sys_unlink /* 6085 */
203 PTR sys_chown /* 6090 */
207 PTR sys32_gettimeofday
208 PTR compat_sys_getrlimit /* 6095 */
209 PTR compat_sys_getrusage
213 PTR sys_getuid /* 6100 */
218 PTR sys_geteuid /* 6105 */
223 PTR sys_setsid /* 6110 */
228 PTR sys_setresuid /* 6115 */
233 PTR sys_setfsuid /* 6120 */
238 PTR sys32_rt_sigpending /* 6125 */
239 PTR sys32_rt_sigtimedwait
240 PTR sys32_rt_sigqueueinfo
241 PTR sys32_rt_sigsuspend
242 PTR sys32_sigaltstack
243 PTR compat_sys_utime /* 6130 */
245 PTR sys32_personality
247 PTR compat_sys_statfs
248 PTR compat_sys_fstatfs /* 6135 */
252 PTR sys_sched_setparam
253 PTR sys_sched_getparam /* 6140 */
254 PTR sys_sched_setscheduler
255 PTR sys_sched_getscheduler
256 PTR sys_sched_get_priority_max
257 PTR sys_sched_get_priority_min
258 PTR sys32_sched_rr_get_interval /* 6145 */
263 PTR sys_vhangup /* 6150 */
268 PTR compat_sys_setrlimit /* 6155 */
272 PTR sys32_settimeofday
273 PTR sys_mount /* 6160 */
278 PTR sys_sethostname /* 6165 */
279 PTR sys_setdomainname
280 PTR sys_ni_syscall /* was create_module */
282 PTR sys_delete_module
283 PTR sys_ni_syscall /* 6170, was get_kernel_syms */
284 PTR sys_ni_syscall /* was query_module */
287 PTR sys_ni_syscall /* res. for getpmsg */
288 PTR sys_ni_syscall /* 6175 for putpmsg */
289 PTR sys_ni_syscall /* res. for afs_syscall */
290 PTR sys_ni_syscall /* res. for security */
293 PTR sys_setxattr /* 6180 */
298 PTR sys_fgetxattr /* 6185 */
303 PTR sys_lremovexattr /* 6190 */
308 PTR compat_sys_sched_setaffinity /* 6195 */
309 PTR compat_sys_sched_getaffinity
313 PTR sys_io_setup /* 6200 */
318 PTR sys_exit_group /* 6205 */
319 PTR sys_lookup_dcookie
323 PTR sys_remap_file_pages /* 6210 */
324 PTR sysn32_rt_sigreturn
326 PTR sys_set_tid_address
327 PTR sys_restart_syscall
328 PTR sys_semtimedop /* 6215 */
333 PTR sys_timer_create /* 6220 */
334 PTR sys_timer_settime
335 PTR sys_timer_gettime
336 PTR sys_timer_getoverrun
338 PTR sys_clock_settime /* 6225 */
339 PTR sys_clock_gettime
341 PTR sys_clock_nanosleep
343 PTR compat_sys_utimes /* 6230 */