1/* 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 4 * for more details. 5 * 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. 9 */ 10#include <linux/errno.h> 11#include <asm/asm.h> 12#include <asm/asmmacro.h> 13#include <asm/irqflags.h> 14#include <asm/mipsregs.h> 15#include <asm/regdef.h> 16#include <asm/stackframe.h> 17#include <asm/asm-offsets.h> 18#include <asm/sysmips.h> 19#include <asm/thread_info.h> 20#include <asm/unistd.h> 21#include <asm/war.h> 22 23#ifndef CONFIG_BINFMT_ELF32 24/* Neither O32 nor N32, so define handle_sys here */ 25#define handle_sys64 handle_sys 26#endif 27 28 .align 5 29NESTED(handle_sys64, PT_SIZE, sp) 30#if !defined(CONFIG_MIPS32_O32) && !defined(CONFIG_MIPS32_N32) 31 /* 32 * When 32-bit compatibility is configured scall_o32.S 33 * already did this. 34 */ 35 .set noat 36 SAVE_SOME 37 TRACE_IRQS_ON_RELOAD 38 STI 39 .set at 40#endif 41 42 dsubu 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 47 sd t1, PT_EPC(sp) 48#endif 49 beqz t0, illegal_syscall 50 51 dsll t0, v0, 3 # offset into table 52 ld t2, (sys_call_table - (__NR_64_Linux * 8))(t0) 53 # syscall routine 54 55 sd a3, PT_R26(sp) # save a3 for syscall restarting 56 57 li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT 58 LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? 59 and t0, t1, t0 60 bnez t0, syscall_trace_entry 61 62 jalr t2 # Do The Real Thing (TM) 63 64 li t0, -EMAXERRNO - 1 # error? 65 sltu t0, t0, v0 66 sd t0, PT_R7(sp) # set error flag 67 beqz t0, 1f 68 69 ld t1, PT_R2(sp) # syscall number 70 dnegu v0 # error 71 sd t1, PT_R0(sp) # save it for syscall restarting 721: sd v0, PT_R2(sp) # result 73 74n64_syscall_exit: 75 local_irq_disable # make sure need_resched and 76 # signals dont change between 77 # sampling and return 78 LONG_L a2, TI_FLAGS($28) # current->work 79 li t0, _TIF_ALLWORK_MASK 80 and t0, a2, t0 81 bnez t0, n64_syscall_exit_work 82 83 j restore_partial 84 85n64_syscall_exit_work: 86 j syscall_exit_work_partial 87 88/* ------------------------------------------------------------------------ */ 89 90syscall_trace_entry: 91 SAVE_STATIC 92 move s0, t2 93 move a0, sp 94 jal syscall_trace_enter 95 96 move t0, s0 97 RESTORE_STATIC 98 ld a0, PT_R4(sp) # Restore argument registers 99 ld a1, PT_R5(sp) 100 ld a2, PT_R6(sp) 101 ld a3, PT_R7(sp) 102 ld a4, PT_R8(sp) 103 ld a5, PT_R9(sp) 104 jalr t0 105 106 li t0, -EMAXERRNO - 1 # error? 107 sltu t0, t0, v0 108 sd t0, PT_R7(sp) # set error flag 109 beqz t0, 1f 110 111 ld t1, PT_R2(sp) # syscall number 112 dnegu v0 # error 113 sd t1, PT_R0(sp) # save it for syscall restarting 1141: sd v0, PT_R2(sp) # result 115 116 j syscall_exit 117 118illegal_syscall: 119 /* This also isn't a 64-bit syscall, throw an error. */ 120 li v0, ENOSYS # error 121 sd v0, PT_R2(sp) 122 li t0, 1 # set error flag 123 sd t0, PT_R7(sp) 124 j n64_syscall_exit 125 END(handle_sys64) 126 127 .align 3 128sys_call_table: 129 PTR sys_read /* 5000 */ 130 PTR sys_write 131 PTR sys_open 132 PTR sys_close 133 PTR sys_newstat 134 PTR sys_newfstat /* 5005 */ 135 PTR sys_newlstat 136 PTR sys_poll 137 PTR sys_lseek 138 PTR sys_mips_mmap 139 PTR sys_mprotect /* 5010 */ 140 PTR sys_munmap 141 PTR sys_brk 142 PTR sys_rt_sigaction 143 PTR sys_rt_sigprocmask 144 PTR sys_ioctl /* 5015 */ 145 PTR sys_pread64 146 PTR sys_pwrite64 147 PTR sys_readv 148 PTR sys_writev 149 PTR sys_access /* 5020 */ 150 PTR sysm_pipe 151 PTR sys_select 152 PTR sys_sched_yield 153 PTR sys_mremap 154 PTR sys_msync /* 5025 */ 155 PTR sys_mincore 156 PTR sys_madvise 157 PTR sys_shmget 158 PTR sys_shmat 159 PTR sys_shmctl /* 5030 */ 160 PTR sys_dup 161 PTR sys_dup2 162 PTR sys_pause 163 PTR sys_nanosleep 164 PTR sys_getitimer /* 5035 */ 165 PTR sys_setitimer 166 PTR sys_alarm 167 PTR sys_getpid 168 PTR sys_sendfile64 169 PTR sys_socket /* 5040 */ 170 PTR sys_connect 171 PTR sys_accept 172 PTR sys_sendto 173 PTR sys_recvfrom 174 PTR sys_sendmsg /* 5045 */ 175 PTR sys_recvmsg 176 PTR sys_shutdown 177 PTR sys_bind 178 PTR sys_listen 179 PTR sys_getsockname /* 5050 */ 180 PTR sys_getpeername 181 PTR sys_socketpair 182 PTR sys_setsockopt 183 PTR sys_getsockopt 184 PTR sys_clone /* 5055 */ 185 PTR sys_fork 186 PTR sys_execve 187 PTR sys_exit 188 PTR sys_wait4 189 PTR sys_kill /* 5060 */ 190 PTR sys_newuname 191 PTR sys_semget 192 PTR sys_semop 193 PTR sys_semctl 194 PTR sys_shmdt /* 5065 */ 195 PTR sys_msgget 196 PTR sys_msgsnd 197 PTR sys_msgrcv 198 PTR sys_msgctl 199 PTR sys_fcntl /* 5070 */ 200 PTR sys_flock 201 PTR sys_fsync 202 PTR sys_fdatasync 203 PTR sys_truncate 204 PTR sys_ftruncate /* 5075 */ 205 PTR sys_getdents 206 PTR sys_getcwd 207 PTR sys_chdir 208 PTR sys_fchdir 209 PTR sys_rename /* 5080 */ 210 PTR sys_mkdir 211 PTR sys_rmdir 212 PTR sys_creat 213 PTR sys_link 214 PTR sys_unlink /* 5085 */ 215 PTR sys_symlink 216 PTR sys_readlink 217 PTR sys_chmod 218 PTR sys_fchmod 219 PTR sys_chown /* 5090 */ 220 PTR sys_fchown 221 PTR sys_lchown 222 PTR sys_umask 223 PTR sys_gettimeofday 224 PTR sys_getrlimit /* 5095 */ 225 PTR sys_getrusage 226 PTR sys_sysinfo 227 PTR sys_times 228 PTR sys_ptrace 229 PTR sys_getuid /* 5100 */ 230 PTR sys_syslog 231 PTR sys_getgid 232 PTR sys_setuid 233 PTR sys_setgid 234 PTR sys_geteuid /* 5105 */ 235 PTR sys_getegid 236 PTR sys_setpgid 237 PTR sys_getppid 238 PTR sys_getpgrp 239 PTR sys_setsid /* 5110 */ 240 PTR sys_setreuid 241 PTR sys_setregid 242 PTR sys_getgroups 243 PTR sys_setgroups 244 PTR sys_setresuid /* 5115 */ 245 PTR sys_getresuid 246 PTR sys_setresgid 247 PTR sys_getresgid 248 PTR sys_getpgid 249 PTR sys_setfsuid /* 5120 */ 250 PTR sys_setfsgid 251 PTR sys_getsid 252 PTR sys_capget 253 PTR sys_capset 254 PTR sys_rt_sigpending /* 5125 */ 255 PTR sys_rt_sigtimedwait 256 PTR sys_rt_sigqueueinfo 257 PTR sys_rt_sigsuspend 258 PTR sys_sigaltstack 259 PTR sys_utime /* 5130 */ 260 PTR sys_mknod 261 PTR sys_personality 262 PTR sys_ustat 263 PTR sys_statfs 264 PTR sys_fstatfs /* 5135 */ 265 PTR sys_sysfs 266 PTR sys_getpriority 267 PTR sys_setpriority 268 PTR sys_sched_setparam 269 PTR sys_sched_getparam /* 5140 */ 270 PTR sys_sched_setscheduler 271 PTR sys_sched_getscheduler 272 PTR sys_sched_get_priority_max 273 PTR sys_sched_get_priority_min 274 PTR sys_sched_rr_get_interval /* 5145 */ 275 PTR sys_mlock 276 PTR sys_munlock 277 PTR sys_mlockall 278 PTR sys_munlockall 279 PTR sys_vhangup /* 5150 */ 280 PTR sys_pivot_root 281 PTR sys_sysctl 282 PTR sys_prctl 283 PTR sys_adjtimex 284 PTR sys_setrlimit /* 5155 */ 285 PTR sys_chroot 286 PTR sys_sync 287 PTR sys_acct 288 PTR sys_settimeofday 289 PTR sys_mount /* 5160 */ 290 PTR sys_umount 291 PTR sys_swapon 292 PTR sys_swapoff 293 PTR sys_reboot 294 PTR sys_sethostname /* 5165 */ 295 PTR sys_setdomainname 296 PTR sys_ni_syscall /* was create_module */ 297 PTR sys_init_module 298 PTR sys_delete_module 299 PTR sys_ni_syscall /* 5170, was get_kernel_syms */ 300 PTR sys_ni_syscall /* was query_module */ 301 PTR sys_quotactl 302 PTR sys_ni_syscall /* was nfsservctl */ 303 PTR sys_ni_syscall /* res. for getpmsg */ 304 PTR sys_ni_syscall /* 5175 for putpmsg */ 305 PTR sys_ni_syscall /* res. for afs_syscall */ 306 PTR sys_ni_syscall /* res. for security */ 307 PTR sys_gettid 308 PTR sys_readahead 309 PTR sys_setxattr /* 5180 */ 310 PTR sys_lsetxattr 311 PTR sys_fsetxattr 312 PTR sys_getxattr 313 PTR sys_lgetxattr 314 PTR sys_fgetxattr /* 5185 */ 315 PTR sys_listxattr 316 PTR sys_llistxattr 317 PTR sys_flistxattr 318 PTR sys_removexattr 319 PTR sys_lremovexattr /* 5190 */ 320 PTR sys_fremovexattr 321 PTR sys_tkill 322 PTR sys_ni_syscall 323 PTR sys_futex 324 PTR sys_sched_setaffinity /* 5195 */ 325 PTR sys_sched_getaffinity 326 PTR sys_cacheflush 327 PTR sys_cachectl 328 PTR sys_sysmips 329 PTR sys_io_setup /* 5200 */ 330 PTR sys_io_destroy 331 PTR sys_io_getevents 332 PTR sys_io_submit 333 PTR sys_io_cancel 334 PTR sys_exit_group /* 5205 */ 335 PTR sys_lookup_dcookie 336 PTR sys_epoll_create 337 PTR sys_epoll_ctl 338 PTR sys_epoll_wait 339 PTR sys_remap_file_pages /* 5210 */ 340 PTR sys_rt_sigreturn 341 PTR sys_set_tid_address 342 PTR sys_restart_syscall 343 PTR sys_semtimedop 344 PTR sys_fadvise64_64 /* 5215 */ 345 PTR sys_timer_create 346 PTR sys_timer_settime 347 PTR sys_timer_gettime 348 PTR sys_timer_getoverrun 349 PTR sys_timer_delete /* 5220 */ 350 PTR sys_clock_settime 351 PTR sys_clock_gettime 352 PTR sys_clock_getres 353 PTR sys_clock_nanosleep 354 PTR sys_tgkill /* 5225 */ 355 PTR sys_utimes 356 PTR sys_mbind 357 PTR sys_ni_syscall /* sys_get_mempolicy */ 358 PTR sys_ni_syscall /* sys_set_mempolicy */ 359 PTR sys_mq_open /* 5230 */ 360 PTR sys_mq_unlink 361 PTR sys_mq_timedsend 362 PTR sys_mq_timedreceive 363 PTR sys_mq_notify 364 PTR sys_mq_getsetattr /* 5235 */ 365 PTR sys_ni_syscall /* sys_vserver */ 366 PTR sys_waitid 367 PTR sys_ni_syscall /* available, was setaltroot */ 368 PTR sys_add_key 369 PTR sys_request_key /* 5240 */ 370 PTR sys_keyctl 371 PTR sys_set_thread_area 372 PTR sys_inotify_init 373 PTR sys_inotify_add_watch 374 PTR sys_inotify_rm_watch /* 5245 */ 375 PTR sys_migrate_pages 376 PTR sys_openat 377 PTR sys_mkdirat 378 PTR sys_mknodat 379 PTR sys_fchownat /* 5250 */ 380 PTR sys_futimesat 381 PTR sys_newfstatat 382 PTR sys_unlinkat 383 PTR sys_renameat 384 PTR sys_linkat /* 5255 */ 385 PTR sys_symlinkat 386 PTR sys_readlinkat 387 PTR sys_fchmodat 388 PTR sys_faccessat 389 PTR sys_pselect6 /* 5260 */ 390 PTR sys_ppoll 391 PTR sys_unshare 392 PTR sys_splice 393 PTR sys_sync_file_range 394 PTR sys_tee /* 5265 */ 395 PTR sys_vmsplice 396 PTR sys_move_pages 397 PTR sys_set_robust_list 398 PTR sys_get_robust_list 399 PTR sys_kexec_load /* 5270 */ 400 PTR sys_getcpu 401 PTR sys_epoll_pwait 402 PTR sys_ioprio_set 403 PTR sys_ioprio_get 404 PTR sys_utimensat /* 5275 */ 405 PTR sys_signalfd 406 PTR sys_ni_syscall /* was timerfd */ 407 PTR sys_eventfd 408 PTR sys_fallocate 409 PTR sys_timerfd_create /* 5280 */ 410 PTR sys_timerfd_gettime 411 PTR sys_timerfd_settime 412 PTR sys_signalfd4 413 PTR sys_eventfd2 414 PTR sys_epoll_create1 /* 5285 */ 415 PTR sys_dup3 416 PTR sys_pipe2 417 PTR sys_inotify_init1 418 PTR sys_preadv 419 PTR sys_pwritev /* 5290 */ 420 PTR sys_rt_tgsigqueueinfo 421 PTR sys_perf_event_open 422 PTR sys_accept4 423 PTR sys_recvmmsg 424 PTR sys_fanotify_init /* 5295 */ 425 PTR sys_fanotify_mark 426 PTR sys_prlimit64 427 PTR sys_name_to_handle_at 428 PTR sys_open_by_handle_at 429 PTR sys_clock_adjtime /* 5300 */ 430 PTR sys_syncfs 431 PTR sys_sendmmsg 432 PTR sys_setns 433 PTR sys_process_vm_readv 434 PTR sys_process_vm_writev /* 5305 */ 435 .size sys_call_table,.-sys_call_table 436