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/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
38 ld t1, PT_EPC(sp) # skip syscall on return
40 subu t0, v0, __NR_N32_Linux # check syscall number
41 sltiu t0, t0, __NR_N32_Linux_syscalls + 1
42 daddiu t1, 4 # skip to next instruction
43 beqz t0, not_n32_scall
46 dsll t0, v0, 3 # offset into table
47 ld t2, (sysn32_call_table - (__NR_N32_Linux * 8))(t0)
49 sd a3, PT_R26(sp) # save a3 for syscall restarting
51 LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
52 bltz t0, n32_syscall_trace_entry
54 jalr t2 # Do The Real Thing (TM)
56 li t0, -EMAXERRNO - 1 # error?
58 sd t0, PT_R7(sp) # set error flag
62 sd v0, PT_R0(sp) # set flag for syscall restarting
63 1: sd v0, PT_R2(sp) # result
65 FEXPORT(n32_syscall_exit)
66 local_irq_disable # make sure need_resched and
67 # signals dont change between
69 LONG_L a2, TI_FLAGS($28) # current->work
70 bnez a2, n32_syscall_exit_work
75 n32_syscall_exit_work:
79 /* ------------------------------------------------------------------------ */
81 n32_syscall_trace_entry:
87 ld a0, PT_R4(sp) # Restore argument registers
93 li t0, -EMAXERRNO - 1 # error?
95 sd t0, PT_R7(sp) # set error flag
99 sd v0, PT_R0(sp) # set flag for syscall restarting
100 1: sd v0, PT_R2(sp) # result
105 /* This is not an n32 compatibility syscall, pass it on to
106 the n64 syscall handlers. */
111 EXPORT(sysn32_call_table)
112 PTR sys_read /* 6000 */
117 PTR sys_newfstat /* 6005 */
122 PTR sys_mprotect /* 6010 */
125 PTR sys32_rt_sigaction
126 PTR sys32_rt_sigprocmask
127 PTR compat_sys_ioctl /* 6015 */
132 PTR sys_access /* 6020 */
137 PTR sys_msync /* 6025 */
142 PTR sys_shmctl /* 6030 */
146 PTR compat_sys_nanosleep
147 PTR compat_sys_getitimer /* 6035 */
148 PTR compat_sys_setitimer
152 PTR sys_socket /* 6040 */
157 PTR compat_sys_sendmsg /* 6045 */
158 PTR compat_sys_recvmsg
162 PTR sys_getsockname /* 6050 */
165 PTR compat_sys_setsockopt
167 PTR sys_clone /* 6055 */
172 PTR sys_kill /* 6060 */
177 PTR sys_shmdt /* 6065 */
182 PTR compat_sys_fcntl /* 6070 */
187 PTR sys_ftruncate /* 6075 */
192 PTR sys_rename /* 6080 */
197 PTR sys_unlink /* 6085 */
202 PTR sys_chown /* 6090 */
206 PTR sys32_gettimeofday
207 PTR compat_sys_getrlimit /* 6095 */
208 PTR compat_sys_getrusage
212 PTR sys_getuid /* 6100 */
217 PTR sys_geteuid /* 6105 */
222 PTR sys_setsid /* 6110 */
227 PTR sys_setresuid /* 6115 */
232 PTR sys_setfsuid /* 6120 */
237 PTR sys32_rt_sigpending /* 6125 */
238 PTR sys32_rt_sigtimedwait
239 PTR sys32_rt_sigqueueinfo
240 PTR sys32_rt_sigsuspend
241 PTR sys32_sigaltstack
242 PTR compat_sys_utime /* 6130 */
244 PTR sys32_personality
246 PTR compat_sys_statfs
247 PTR compat_sys_fstatfs /* 6135 */
251 PTR sys_sched_setparam
252 PTR sys_sched_getparam /* 6140 */
253 PTR sys_sched_setscheduler
254 PTR sys_sched_getscheduler
255 PTR sys_sched_get_priority_max
256 PTR sys_sched_get_priority_min
257 PTR sys32_sched_rr_get_interval /* 6145 */
262 PTR sys_vhangup /* 6150 */
267 PTR compat_sys_setrlimit /* 6155 */
271 PTR sys32_settimeofday
272 PTR sys_mount /* 6160 */
277 PTR sys_sethostname /* 6165 */
278 PTR sys_setdomainname
279 PTR sys_ni_syscall /* was create_module */
281 PTR sys_delete_module
282 PTR sys_ni_syscall /* 6170, was get_kernel_syms */
283 PTR sys_ni_syscall /* was query_module */
286 PTR sys_ni_syscall /* res. for getpmsg */
287 PTR sys_ni_syscall /* 6175 for putpmsg */
288 PTR sys_ni_syscall /* res. for afs_syscall */
289 PTR sys_ni_syscall /* res. for security */
292 PTR sys_setxattr /* 6180 */
297 PTR sys_fgetxattr /* 6185 */
302 PTR sys_lremovexattr /* 6190 */
307 PTR sys32_sched_setaffinity /* 6195 */
308 PTR sys32_sched_getaffinity
312 PTR sys_io_setup /* 6200 */
317 PTR sys_exit_group /* 6205 */
318 PTR sys_lookup_dcookie
322 PTR sys_remap_file_pages /* 6210 */
323 PTR sysn32_rt_sigreturn
325 PTR sys_set_tid_address
326 PTR sys_restart_syscall
327 PTR sys_semtimedop /* 6215 */
332 PTR sys_timer_create /* 6220 */
333 PTR sys_timer_settime
334 PTR sys_timer_gettime
335 PTR sys_timer_getoverrun
337 PTR sys_clock_settime /* 6225 */
338 PTR sys_clock_gettime
340 PTR sys_clock_nanosleep
342 PTR compat_sys_utimes /* 6230 */