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, 02 by Ralf Baechle
7 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
8 * Copyright (C) 2001 MIPS Technologies, Inc.
10 #include <linux/config.h>
12 #include <linux/errno.h>
13 #include <asm/mipsregs.h>
14 #include <asm/regdef.h>
15 #include <asm/stackframe.h>
16 #include <asm/offset.h>
17 #include <asm/unistd.h>
18 #include <asm/thread_info.h>
20 #ifndef CONFIG_BINFMT_ELF32
21 /* Neither O32 nor N32, so define handle_sys here */
22 #define handle_sys64 handle_sys
26 NESTED(handle_sys64, PT_SIZE, sp)
27 #if !defined(CONFIG_MIPS32_O32) && !defined(CONFIG_MIPS32_N32)
29 * When 32-bit compatibility is configured scall_o32.S
37 ld t1, PT_EPC(sp) # skip syscall on return
39 subu t0, v0, __NR_Linux # check syscall number
40 sltiu t0, t0, __NR_Linux_syscalls + 1
41 daddiu t1, 4 # skip to next instruction
42 beqz t0, illegal_syscall
45 dsll t0, v0, 3 # offset into table
46 ld t2, (sys_call_table - (__NR_Linux * 8))(t0)
49 sd a3, PT_R26(sp) # save a3 for syscall restarting
51 LONG_L t0, TI_FLAGS($28)
52 bltz t0, syscall_trace_entry # syscall tracing enabled?
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
64 1: sd v0, PT_R2(sp) # result
67 mfc0 t0, CP0_STATUS # make sure need_resched and
68 ori t0, t0, 1 # signals dont change between
69 xori t0, t0, 1 # sampling and return
73 LONG_L a2, TI_FLAGS($28) # current->work
74 bnez a2, syscall_exit_work
82 andi t0, a2, _TIF_NEED_RESCHED
83 bltz t0, work_notifysig
87 mfc0 t0, CP0_STATUS # make sure need_resched and
88 ori t0, t0, 1 # signals dont change between
89 xori t0, t0, 1 # sampling and return
93 LONG_L a2, TI_FLAGS($28)
94 andi a2, _TIF_WORK_MASK # is there any work to be done
95 # other than syscall tracing
97 andi t0, a2, _TIF_NEED_RESCHED
100 work_notifysig: # deal with pending signals and
101 # notify-resume requests
105 jal do_notify_resume # a2 already loaded
110 LONG_L t0, TI_FLAGS($28) # current->work.syscall_trace
111 bgez t0, work_pending
113 mfc0 t0, CP0_STATUS # sti
119 /* ------------------------------------------------------------------------ */
127 ld a0, PT_R4(sp) # Restore argument registers
133 li t0, -EMAXERRNO - 1 # error?
135 sd t0, PT_R7(sp) # set error flag
139 sd v0, PT_R0(sp) # set flag for syscall restarting
140 1: sd v0, PT_R2(sp) # result
145 /* This also isn't a 64-bit syscall, throw an error. */
146 li v0, ENOSYS # error
148 li t0, 1 # set error flag
155 PTR sys_read /* 5000 */
160 PTR sys_newfstat /* 5005 */
165 PTR sys_mprotect /* 5010 */
169 PTR sys_rt_sigprocmask
170 PTR sys_ioctl /* 5015 */
175 PTR sys_access /* 5020 */
180 PTR sys_msync /* 5025 */
185 PTR sys_shmctl /* 5030 */
190 PTR sys_getitimer /* 5035 */
195 PTR sys_socket /* 5040 */
200 PTR sys_sendmsg /* 5045 */
205 PTR sys_getsockname /* 5050 */
210 PTR sys_clone /* 5055 */
215 PTR sys_kill /* 5060 */
220 PTR sys_shmdt /* 5065 */
225 PTR sys_fcntl /* 5070 */
230 PTR sys_ftruncate /* 5075 */
235 PTR sys_rename /* 5080 */
240 PTR sys_unlink /* 5085 */
245 PTR sys_chown /* 5090 */
250 PTR sys_getrlimit /* 5095 */
255 PTR sys_getuid /* 5100 */
260 PTR sys_geteuid /* 5105 */
265 PTR sys_setsid /* 5110 */
270 PTR sys_setresuid /* 5115 */
275 PTR sys_setfsuid /* 5120 */
280 PTR sys_rt_sigpending /* 5125 */
281 PTR sys_rt_sigtimedwait
282 PTR sys_rt_sigqueueinfo
283 PTR sys_rt_sigsuspend
285 PTR sys_utime /* 5130 */
290 PTR sys_fstatfs /* 5135 */
294 PTR sys_sched_setparam
295 PTR sys_sched_getparam /* 5140 */
296 PTR sys_sched_setscheduler
297 PTR sys_sched_getscheduler
298 PTR sys_sched_get_priority_max
299 PTR sys_sched_get_priority_min
300 PTR sys_sched_rr_get_interval /* 5145 */
305 PTR sys_vhangup /* 5150 */
310 PTR sys_setrlimit /* 5155 */
315 PTR sys_mount /* 5160 */
320 PTR sys_sethostname /* 5165 */
321 PTR sys_setdomainname
322 PTR sys_ni_syscall /* was create_module */
324 PTR sys_delete_module
325 PTR sys_ni_syscall /* 5170, was get_kernel_syms */
326 PTR sys_ni_syscall /* was query_module */
329 PTR sys_ni_syscall /* res. for getpmsg */
330 PTR sys_ni_syscall /* 5175 for putpmsg */
331 PTR sys_ni_syscall /* res. for afs_syscall */
332 PTR sys_ni_syscall /* res. for security */
335 PTR sys_setxattr /* 5180 */
340 PTR sys_fgetxattr /* 5185 */
345 PTR sys_lremovexattr /* 5190 */
350 PTR sys_sched_setaffinity /* 5195 */
351 PTR sys_sched_getaffinity
355 PTR sys_io_setup /* 5200 */
360 PTR sys_exit_group /* 5205 */
361 PTR sys_lookup_dcookie
365 PTR sys_remap_file_pages /* 5210 */
367 PTR sys_set_tid_address
368 PTR sys_restart_syscall
370 PTR sys_fadvise64 /* 5215 */
372 sys sys_timer_settime
373 sys sys_timer_gettime
374 sys sys_timer_getoverrun
375 sys sys_timer_delete /* 5220 */
376 sys sys_clock_settime
377 sys sys_clock_gettime
379 sys sys_clock_nanosleep