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>
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/offset.h>
18 #include <asm/sysmips.h>
19 #include <asm/thread_info.h>
20 #include <asm/unistd.h>
23 #ifndef CONFIG_BINFMT_ELF32
24 /* Neither O32 nor N32, so define handle_sys here */
25 #define handle_sys64 handle_sys
29 NESTED(handle_sys64, PT_SIZE, sp)
30 #if !defined(CONFIG_MIPS32_O32) && !defined(CONFIG_MIPS32_N32)
32 * When 32-bit compatibility is configured scall_o32.S
41 FEXPORT(__handle_sys64)
42 subu t0, v0, __NR_64_Linux # check syscall number
43 sltiu t0, t0, __NR_64_Linux_syscalls + 1
44 #if !defined(CONFIG_MIPS32_O32) && !defined(CONFIG_MIPS32_N32)
45 ld t1, PT_EPC(sp) # skip syscall on return
46 daddiu t1, 4 # skip to next instruction
49 beqz t0, illegal_syscall
51 dsll t0, v0, 3 # offset into table
52 ld t2, (sys_call_table - (__NR_64_Linux * 8))(t0)
55 sd a3, PT_R26(sp) # save a3 for syscall restarting
57 LONG_L t0, TI_FLAGS($28)
58 bltz t0, syscall_trace_entry # syscall tracing enabled?
60 jalr t2 # Do The Real Thing (TM)
62 li t0, -EMAXERRNO - 1 # error?
64 sd t0, PT_R7(sp) # set error flag
68 sd v0, PT_R0(sp) # set flag for syscall
70 1: sd v0, PT_R2(sp) # result
73 local_irq_disable # make sure need_resched and
74 # signals dont change between
76 LONG_L a2, TI_FLAGS($28) # current->work
77 li t0, _TIF_ALLWORK_MASK
79 bnez t0, n64_syscall_exit_work
83 n64_syscall_exit_work:
84 j syscall_exit_work_partial
86 /* ------------------------------------------------------------------------ */
96 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 also isn't a 64-bit syscall, throw an error. */
115 li v0, ENOSYS # error
117 li t0, 1 # set error flag
122 LEAF(mips_atomic_set)
123 andi v0, a1, 3 # must be word aligned
124 bnez v0, bad_alignment
126 LONG_L v1, TI_ADDR_LIMIT($28) # in legal address range?
132 #ifdef CONFIG_CPU_HAS_LLSC
133 /* Ok, this is the ll/sc case. World is sane :-) */
143 .section __ex_table,"a"
160 * At this point the page should be readable and writable unless
161 * there was no more memory available.
166 .section __ex_table,"a"
172 sd zero, PT_R7(sp) # success
173 sd v0, PT_R2(sp) # result
175 /* Success, so skip usual error handling garbage. */
176 LONG_L a2, TI_FLAGS($28) # syscall tracing enabled?
177 li t0, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
189 no_mem: li v0, -ENOMEM
202 beq a0, MIPS_ATOMIC_SET, mips_atomic_set
206 LEAF(sys_syscall) /* Quick'n'dirty ... */
219 PTR sys_read /* 5000 */
224 PTR sys_newfstat /* 5005 */
229 PTR sys_mprotect /* 5010 */
233 PTR sys_rt_sigprocmask
234 PTR sys_ioctl /* 5015 */
239 PTR sys_access /* 5020 */
244 PTR sys_msync /* 5025 */
249 PTR sys_shmctl /* 5030 */
254 PTR sys_getitimer /* 5035 */
259 PTR sys_socket /* 5040 */
264 PTR sys_sendmsg /* 5045 */
269 PTR sys_getsockname /* 5050 */
274 PTR sys_clone /* 5055 */
279 PTR sys_kill /* 5060 */
284 PTR sys_shmdt /* 5065 */
289 PTR sys_fcntl /* 5070 */
294 PTR sys_ftruncate /* 5075 */
299 PTR sys_rename /* 5080 */
304 PTR sys_unlink /* 5085 */
309 PTR sys_chown /* 5090 */
314 PTR sys_getrlimit /* 5095 */
319 PTR sys_getuid /* 5100 */
324 PTR sys_geteuid /* 5105 */
329 PTR sys_setsid /* 5110 */
334 PTR sys_setresuid /* 5115 */
339 PTR sys_setfsuid /* 5120 */
344 PTR sys_rt_sigpending /* 5125 */
345 PTR sys_rt_sigtimedwait
346 PTR sys_rt_sigqueueinfo
347 PTR sys_rt_sigsuspend
349 PTR sys_utime /* 5130 */
354 PTR sys_fstatfs /* 5135 */
358 PTR sys_sched_setparam
359 PTR sys_sched_getparam /* 5140 */
360 PTR sys_sched_setscheduler
361 PTR sys_sched_getscheduler
362 PTR sys_sched_get_priority_max
363 PTR sys_sched_get_priority_min
364 PTR sys_sched_rr_get_interval /* 5145 */
369 PTR sys_vhangup /* 5150 */
374 PTR sys_setrlimit /* 5155 */
379 PTR sys_mount /* 5160 */
384 PTR sys_sethostname /* 5165 */
385 PTR sys_setdomainname
386 PTR sys_ni_syscall /* was create_module */
388 PTR sys_delete_module
389 PTR sys_ni_syscall /* 5170, was get_kernel_syms */
390 PTR sys_ni_syscall /* was query_module */
393 PTR sys_ni_syscall /* res. for getpmsg */
394 PTR sys_ni_syscall /* 5175 for putpmsg */
395 PTR sys_ni_syscall /* res. for afs_syscall */
396 PTR sys_ni_syscall /* res. for security */
399 PTR sys_setxattr /* 5180 */
404 PTR sys_fgetxattr /* 5185 */
409 PTR sys_lremovexattr /* 5190 */
414 PTR sys_sched_setaffinity /* 5195 */
415 PTR sys_sched_getaffinity
419 PTR sys_io_setup /* 5200 */
424 PTR sys_exit_group /* 5205 */
425 PTR sys_lookup_dcookie
429 PTR sys_remap_file_pages /* 5210 */
431 PTR sys_set_tid_address
432 PTR sys_restart_syscall
434 PTR sys_fadvise64_64 /* 5215 */
436 PTR sys_timer_settime
437 PTR sys_timer_gettime
438 PTR sys_timer_getoverrun
439 PTR sys_timer_delete /* 5220 */
440 PTR sys_clock_settime
441 PTR sys_clock_gettime
443 PTR sys_clock_nanosleep
444 PTR sys_tgkill /* 5225 */
446 PTR sys_ni_syscall /* sys_mbind */
447 PTR sys_ni_syscall /* sys_get_mempolicy */
448 PTR sys_ni_syscall /* sys_set_mempolicy */
449 PTR sys_mq_open /* 5230 */
452 PTR sys_mq_timedreceive
454 PTR sys_mq_getsetattr /* 5235 */
455 PTR sys_ni_syscall /* sys_vserver */