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 li a1, 0 95 jal do_syscall_trace 96 97 move t0, s0 98 RESTORE_STATIC 99 ld a0, PT_R4(sp) # Restore argument registers 100 ld a1, PT_R5(sp) 101 ld a2, PT_R6(sp) 102 ld a3, PT_R7(sp) 103 ld a4, PT_R8(sp) 104 ld a5, PT_R9(sp) 105 jalr t0 106 107 li t0, -EMAXERRNO - 1 # error? 108 sltu t0, t0, v0 109 sd t0, PT_R7(sp) # set error flag 110 beqz t0, 1f 111 112 ld t1, PT_R2(sp) # syscall number 113 dnegu v0 # error 114 sd t1, PT_R0(sp) # save it for syscall restarting 1151: sd v0, PT_R2(sp) # result 116 117 j syscall_exit 118 119illegal_syscall: 120 /* This also isn't a 64-bit syscall, throw an error. */ 121 li v0, ENOSYS # error 122 sd v0, PT_R2(sp) 123 li t0, 1 # set error flag 124 sd t0, PT_R7(sp) 125 j n64_syscall_exit 126 END(handle_sys64) 127 128 .align 3 129sys_call_table: 130 PTR sys_read /* 5000 */ 131 PTR sys_write 132 PTR sys_open 133 PTR sys_close 134 PTR sys_newstat 135 PTR sys_newfstat /* 5005 */ 136 PTR sys_newlstat 137 PTR sys_poll 138 PTR sys_lseek 139 PTR sys_mips_mmap 140 PTR sys_mprotect /* 5010 */ 141 PTR sys_munmap 142 PTR sys_brk 143 PTR sys_rt_sigaction 144 PTR sys_rt_sigprocmask 145 PTR sys_ioctl /* 5015 */ 146 PTR sys_pread64 147 PTR sys_pwrite64 148 PTR sys_readv 149 PTR sys_writev 150 PTR sys_access /* 5020 */ 151 PTR sysm_pipe 152 PTR sys_select 153 PTR sys_sched_yield 154 PTR sys_mremap 155 PTR sys_msync /* 5025 */ 156 PTR sys_mincore 157 PTR sys_madvise 158 PTR sys_shmget 159 PTR sys_shmat 160 PTR sys_shmctl /* 5030 */ 161 PTR sys_dup 162 PTR sys_dup2 163 PTR sys_pause 164 PTR sys_nanosleep 165 PTR sys_getitimer /* 5035 */ 166 PTR sys_setitimer 167 PTR sys_alarm 168 PTR sys_getpid 169 PTR sys_sendfile64 170 PTR sys_socket /* 5040 */ 171 PTR sys_connect 172 PTR sys_accept 173 PTR sys_sendto 174 PTR sys_recvfrom 175 PTR sys_sendmsg /* 5045 */ 176 PTR sys_recvmsg 177 PTR sys_shutdown 178 PTR sys_bind 179 PTR sys_listen 180 PTR sys_getsockname /* 5050 */ 181 PTR sys_getpeername 182 PTR sys_socketpair 183 PTR sys_setsockopt 184 PTR sys_getsockopt 185 PTR sys_clone /* 5055 */ 186 PTR sys_fork 187 PTR sys_execve 188 PTR sys_exit 189 PTR sys_wait4 190 PTR sys_kill /* 5060 */ 191 PTR sys_newuname 192 PTR sys_semget 193 PTR sys_semop 194 PTR sys_semctl 195 PTR sys_shmdt /* 5065 */ 196 PTR sys_msgget 197 PTR sys_msgsnd 198 PTR sys_msgrcv 199 PTR sys_msgctl 200 PTR sys_fcntl /* 5070 */ 201 PTR sys_flock 202 PTR sys_fsync 203 PTR sys_fdatasync 204 PTR sys_truncate 205 PTR sys_ftruncate /* 5075 */ 206 PTR sys_getdents 207 PTR sys_getcwd 208 PTR sys_chdir 209 PTR sys_fchdir 210 PTR sys_rename /* 5080 */ 211 PTR sys_mkdir 212 PTR sys_rmdir 213 PTR sys_creat 214 PTR sys_link 215 PTR sys_unlink /* 5085 */ 216 PTR sys_symlink 217 PTR sys_readlink 218 PTR sys_chmod 219 PTR sys_fchmod 220 PTR sys_chown /* 5090 */ 221 PTR sys_fchown 222 PTR sys_lchown 223 PTR sys_umask 224 PTR sys_gettimeofday 225 PTR sys_getrlimit /* 5095 */ 226 PTR sys_getrusage 227 PTR sys_sysinfo 228 PTR sys_times 229 PTR sys_ptrace 230 PTR sys_getuid /* 5100 */ 231 PTR sys_syslog 232 PTR sys_getgid 233 PTR sys_setuid 234 PTR sys_setgid 235 PTR sys_geteuid /* 5105 */ 236 PTR sys_getegid 237 PTR sys_setpgid 238 PTR sys_getppid 239 PTR sys_getpgrp 240 PTR sys_setsid /* 5110 */ 241 PTR sys_setreuid 242 PTR sys_setregid 243 PTR sys_getgroups 244 PTR sys_setgroups 245 PTR sys_setresuid /* 5115 */ 246 PTR sys_getresuid 247 PTR sys_setresgid 248 PTR sys_getresgid 249 PTR sys_getpgid 250 PTR sys_setfsuid /* 5120 */ 251 PTR sys_setfsgid 252 PTR sys_getsid 253 PTR sys_capget 254 PTR sys_capset 255 PTR sys_rt_sigpending /* 5125 */ 256 PTR sys_rt_sigtimedwait 257 PTR sys_rt_sigqueueinfo 258 PTR sys_rt_sigsuspend 259 PTR sys_sigaltstack 260 PTR sys_utime /* 5130 */ 261 PTR sys_mknod 262 PTR sys_personality 263 PTR sys_ustat 264 PTR sys_statfs 265 PTR sys_fstatfs /* 5135 */ 266 PTR sys_sysfs 267 PTR sys_getpriority 268 PTR sys_setpriority 269 PTR sys_sched_setparam 270 PTR sys_sched_getparam /* 5140 */ 271 PTR sys_sched_setscheduler 272 PTR sys_sched_getscheduler 273 PTR sys_sched_get_priority_max 274 PTR sys_sched_get_priority_min 275 PTR sys_sched_rr_get_interval /* 5145 */ 276 PTR sys_mlock 277 PTR sys_munlock 278 PTR sys_mlockall 279 PTR sys_munlockall 280 PTR sys_vhangup /* 5150 */ 281 PTR sys_pivot_root 282 PTR sys_sysctl 283 PTR sys_prctl 284 PTR sys_adjtimex 285 PTR sys_setrlimit /* 5155 */ 286 PTR sys_chroot 287 PTR sys_sync 288 PTR sys_acct 289 PTR sys_settimeofday 290 PTR sys_mount /* 5160 */ 291 PTR sys_umount 292 PTR sys_swapon 293 PTR sys_swapoff 294 PTR sys_reboot 295 PTR sys_sethostname /* 5165 */ 296 PTR sys_setdomainname 297 PTR sys_ni_syscall /* was create_module */ 298 PTR sys_init_module 299 PTR sys_delete_module 300 PTR sys_ni_syscall /* 5170, was get_kernel_syms */ 301 PTR sys_ni_syscall /* was query_module */ 302 PTR sys_quotactl 303 PTR sys_nfsservctl 304 PTR sys_ni_syscall /* res. for getpmsg */ 305 PTR sys_ni_syscall /* 5175 for putpmsg */ 306 PTR sys_ni_syscall /* res. for afs_syscall */ 307 PTR sys_ni_syscall /* res. for security */ 308 PTR sys_gettid 309 PTR sys_readahead 310 PTR sys_setxattr /* 5180 */ 311 PTR sys_lsetxattr 312 PTR sys_fsetxattr 313 PTR sys_getxattr 314 PTR sys_lgetxattr 315 PTR sys_fgetxattr /* 5185 */ 316 PTR sys_listxattr 317 PTR sys_llistxattr 318 PTR sys_flistxattr 319 PTR sys_removexattr 320 PTR sys_lremovexattr /* 5190 */ 321 PTR sys_fremovexattr 322 PTR sys_tkill 323 PTR sys_ni_syscall 324 PTR sys_futex 325 PTR sys_sched_setaffinity /* 5195 */ 326 PTR sys_sched_getaffinity 327 PTR sys_cacheflush 328 PTR sys_cachectl 329 PTR sys_sysmips 330 PTR sys_io_setup /* 5200 */ 331 PTR sys_io_destroy 332 PTR sys_io_getevents 333 PTR sys_io_submit 334 PTR sys_io_cancel 335 PTR sys_exit_group /* 5205 */ 336 PTR sys_lookup_dcookie 337 PTR sys_epoll_create 338 PTR sys_epoll_ctl 339 PTR sys_epoll_wait 340 PTR sys_remap_file_pages /* 5210 */ 341 PTR sys_rt_sigreturn 342 PTR sys_set_tid_address 343 PTR sys_restart_syscall 344 PTR sys_semtimedop 345 PTR sys_fadvise64_64 /* 5215 */ 346 PTR sys_timer_create 347 PTR sys_timer_settime 348 PTR sys_timer_gettime 349 PTR sys_timer_getoverrun 350 PTR sys_timer_delete /* 5220 */ 351 PTR sys_clock_settime 352 PTR sys_clock_gettime 353 PTR sys_clock_getres 354 PTR sys_clock_nanosleep 355 PTR sys_tgkill /* 5225 */ 356 PTR sys_utimes 357 PTR sys_mbind 358 PTR sys_ni_syscall /* sys_get_mempolicy */ 359 PTR sys_ni_syscall /* sys_set_mempolicy */ 360 PTR sys_mq_open /* 5230 */ 361 PTR sys_mq_unlink 362 PTR sys_mq_timedsend 363 PTR sys_mq_timedreceive 364 PTR sys_mq_notify 365 PTR sys_mq_getsetattr /* 5235 */ 366 PTR sys_ni_syscall /* sys_vserver */ 367 PTR sys_waitid 368 PTR sys_ni_syscall /* available, was setaltroot */ 369 PTR sys_add_key 370 PTR sys_request_key /* 5240 */ 371 PTR sys_keyctl 372 PTR sys_set_thread_area 373 PTR sys_inotify_init 374 PTR sys_inotify_add_watch 375 PTR sys_inotify_rm_watch /* 5245 */ 376 PTR sys_migrate_pages 377 PTR sys_openat 378 PTR sys_mkdirat 379 PTR sys_mknodat 380 PTR sys_fchownat /* 5250 */ 381 PTR sys_futimesat 382 PTR sys_newfstatat 383 PTR sys_unlinkat 384 PTR sys_renameat 385 PTR sys_linkat /* 5255 */ 386 PTR sys_symlinkat 387 PTR sys_readlinkat 388 PTR sys_fchmodat 389 PTR sys_faccessat 390 PTR sys_pselect6 /* 5260 */ 391 PTR sys_ppoll 392 PTR sys_unshare 393 PTR sys_splice 394 PTR sys_sync_file_range 395 PTR sys_tee /* 5265 */ 396 PTR sys_vmsplice 397 PTR sys_move_pages 398 PTR sys_set_robust_list 399 PTR sys_get_robust_list 400 PTR sys_kexec_load /* 5270 */ 401 PTR sys_getcpu 402 PTR sys_epoll_pwait 403 PTR sys_ioprio_set 404 PTR sys_ioprio_get 405 PTR sys_utimensat /* 5275 */ 406 PTR sys_signalfd 407 PTR sys_ni_syscall 408 PTR sys_eventfd 409 PTR sys_fallocate 410 PTR sys_timerfd_create /* 5280 */ 411 PTR sys_timerfd_gettime 412 PTR sys_timerfd_settime 413 PTR sys_signalfd4 414 PTR sys_eventfd2 415 PTR sys_epoll_create1 /* 5285 */ 416 PTR sys_dup3 417 PTR sys_pipe2 418 PTR sys_inotify_init1 419 PTR sys_preadv 420 PTR sys_pwritev /* 5290 */ 421 PTR sys_rt_tgsigqueueinfo 422 PTR sys_perf_event_open 423 PTR sys_accept4 424 PTR sys_recvmmsg 425 PTR sys_fanotify_init /* 5295 */ 426 PTR sys_fanotify_mark 427 PTR sys_prlimit64 428 .size sys_call_table,.-sys_call_table 429