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#if !defined(CONFIG_MIPS32_O32) && !defined(CONFIG_MIPS32_N32) 43 ld t1, PT_EPC(sp) # skip syscall on return 44 daddiu t1, 4 # skip to next instruction 45 sd t1, PT_EPC(sp) 46#endif 47 48 sd a3, PT_R26(sp) # save a3 for syscall restarting 49 50 li t1, _TIF_WORK_SYSCALL_ENTRY 51 LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? 52 and t0, t1, t0 53 bnez t0, syscall_trace_entry 54 55syscall_common: 56 dsubu t2, v0, __NR_64_Linux 57 sltiu t0, t2, __NR_64_Linux_syscalls + 1 58 beqz t0, illegal_syscall 59 60 dsll t0, t2, 3 # offset into table 61 dla t2, sys_call_table 62 daddu t0, t2, t0 63 ld t2, (t0) # syscall routine 64 beqz t2, illegal_syscall 65 66 jalr t2 # Do The Real Thing (TM) 67 68 li t0, -EMAXERRNO - 1 # error? 69 sltu t0, t0, v0 70 sd t0, PT_R7(sp) # set error flag 71 beqz t0, 1f 72 73 ld t1, PT_R2(sp) # syscall number 74 dnegu v0 # error 75 sd t1, PT_R0(sp) # save it for syscall restarting 761: sd v0, PT_R2(sp) # result 77 78n64_syscall_exit: 79 j syscall_exit_partial 80 81/* ------------------------------------------------------------------------ */ 82 83syscall_trace_entry: 84 SAVE_STATIC 85 move s0, v0 86 move a0, sp 87 move a1, v0 88 jal syscall_trace_enter 89 90 bltz v0, 1f # seccomp failed? Skip syscall 91 92 move v0, s0 93 RESTORE_STATIC 94 ld a0, PT_R4(sp) # Restore argument registers 95 ld a1, PT_R5(sp) 96 ld a2, PT_R6(sp) 97 ld a3, PT_R7(sp) 98 ld a4, PT_R8(sp) 99 ld a5, PT_R9(sp) 100 j syscall_common 101 1021: j syscall_exit 103 104illegal_syscall: 105 /* This also isn't a 64-bit syscall, throw an error. */ 106 li v0, ENOSYS # error 107 sd v0, PT_R2(sp) 108 li t0, 1 # set error flag 109 sd t0, PT_R7(sp) 110 j n64_syscall_exit 111 END(handle_sys64) 112 113 .align 3 114 .type sys_call_table, @object 115EXPORT(sys_call_table) 116 PTR sys_read /* 5000 */ 117 PTR sys_write 118 PTR sys_open 119 PTR sys_close 120 PTR sys_newstat 121 PTR sys_newfstat /* 5005 */ 122 PTR sys_newlstat 123 PTR sys_poll 124 PTR sys_lseek 125 PTR sys_mips_mmap 126 PTR sys_mprotect /* 5010 */ 127 PTR sys_munmap 128 PTR sys_brk 129 PTR sys_rt_sigaction 130 PTR sys_rt_sigprocmask 131 PTR sys_ioctl /* 5015 */ 132 PTR sys_pread64 133 PTR sys_pwrite64 134 PTR sys_readv 135 PTR sys_writev 136 PTR sys_access /* 5020 */ 137 PTR sysm_pipe 138 PTR sys_select 139 PTR sys_sched_yield 140 PTR sys_mremap 141 PTR sys_msync /* 5025 */ 142 PTR sys_mincore 143 PTR sys_madvise 144 PTR sys_shmget 145 PTR sys_shmat 146 PTR sys_shmctl /* 5030 */ 147 PTR sys_dup 148 PTR sys_dup2 149 PTR sys_pause 150 PTR sys_nanosleep 151 PTR sys_getitimer /* 5035 */ 152 PTR sys_setitimer 153 PTR sys_alarm 154 PTR sys_getpid 155 PTR sys_sendfile64 156 PTR sys_socket /* 5040 */ 157 PTR sys_connect 158 PTR sys_accept 159 PTR sys_sendto 160 PTR sys_recvfrom 161 PTR sys_sendmsg /* 5045 */ 162 PTR sys_recvmsg 163 PTR sys_shutdown 164 PTR sys_bind 165 PTR sys_listen 166 PTR sys_getsockname /* 5050 */ 167 PTR sys_getpeername 168 PTR sys_socketpair 169 PTR sys_setsockopt 170 PTR sys_getsockopt 171 PTR __sys_clone /* 5055 */ 172 PTR __sys_fork 173 PTR sys_execve 174 PTR sys_exit 175 PTR sys_wait4 176 PTR sys_kill /* 5060 */ 177 PTR sys_newuname 178 PTR sys_semget 179 PTR sys_semop 180 PTR sys_semctl 181 PTR sys_shmdt /* 5065 */ 182 PTR sys_msgget 183 PTR sys_msgsnd 184 PTR sys_msgrcv 185 PTR sys_msgctl 186 PTR sys_fcntl /* 5070 */ 187 PTR sys_flock 188 PTR sys_fsync 189 PTR sys_fdatasync 190 PTR sys_truncate 191 PTR sys_ftruncate /* 5075 */ 192 PTR sys_getdents 193 PTR sys_getcwd 194 PTR sys_chdir 195 PTR sys_fchdir 196 PTR sys_rename /* 5080 */ 197 PTR sys_mkdir 198 PTR sys_rmdir 199 PTR sys_creat 200 PTR sys_link 201 PTR sys_unlink /* 5085 */ 202 PTR sys_symlink 203 PTR sys_readlink 204 PTR sys_chmod 205 PTR sys_fchmod 206 PTR sys_chown /* 5090 */ 207 PTR sys_fchown 208 PTR sys_lchown 209 PTR sys_umask 210 PTR sys_gettimeofday 211 PTR sys_getrlimit /* 5095 */ 212 PTR sys_getrusage 213 PTR sys_sysinfo 214 PTR sys_times 215 PTR sys_ptrace 216 PTR sys_getuid /* 5100 */ 217 PTR sys_syslog 218 PTR sys_getgid 219 PTR sys_setuid 220 PTR sys_setgid 221 PTR sys_geteuid /* 5105 */ 222 PTR sys_getegid 223 PTR sys_setpgid 224 PTR sys_getppid 225 PTR sys_getpgrp 226 PTR sys_setsid /* 5110 */ 227 PTR sys_setreuid 228 PTR sys_setregid 229 PTR sys_getgroups 230 PTR sys_setgroups 231 PTR sys_setresuid /* 5115 */ 232 PTR sys_getresuid 233 PTR sys_setresgid 234 PTR sys_getresgid 235 PTR sys_getpgid 236 PTR sys_setfsuid /* 5120 */ 237 PTR sys_setfsgid 238 PTR sys_getsid 239 PTR sys_capget 240 PTR sys_capset 241 PTR sys_rt_sigpending /* 5125 */ 242 PTR sys_rt_sigtimedwait 243 PTR sys_rt_sigqueueinfo 244 PTR sys_rt_sigsuspend 245 PTR sys_sigaltstack 246 PTR sys_utime /* 5130 */ 247 PTR sys_mknod 248 PTR sys_personality 249 PTR sys_ustat 250 PTR sys_statfs 251 PTR sys_fstatfs /* 5135 */ 252 PTR sys_sysfs 253 PTR sys_getpriority 254 PTR sys_setpriority 255 PTR sys_sched_setparam 256 PTR sys_sched_getparam /* 5140 */ 257 PTR sys_sched_setscheduler 258 PTR sys_sched_getscheduler 259 PTR sys_sched_get_priority_max 260 PTR sys_sched_get_priority_min 261 PTR sys_sched_rr_get_interval /* 5145 */ 262 PTR sys_mlock 263 PTR sys_munlock 264 PTR sys_mlockall 265 PTR sys_munlockall 266 PTR sys_vhangup /* 5150 */ 267 PTR sys_pivot_root 268 PTR sys_sysctl 269 PTR sys_prctl 270 PTR sys_adjtimex 271 PTR sys_setrlimit /* 5155 */ 272 PTR sys_chroot 273 PTR sys_sync 274 PTR sys_acct 275 PTR sys_settimeofday 276 PTR sys_mount /* 5160 */ 277 PTR sys_umount 278 PTR sys_swapon 279 PTR sys_swapoff 280 PTR sys_reboot 281 PTR sys_sethostname /* 5165 */ 282 PTR sys_setdomainname 283 PTR sys_ni_syscall /* was create_module */ 284 PTR sys_init_module 285 PTR sys_delete_module 286 PTR sys_ni_syscall /* 5170, was get_kernel_syms */ 287 PTR sys_ni_syscall /* was query_module */ 288 PTR sys_quotactl 289 PTR sys_ni_syscall /* was nfsservctl */ 290 PTR sys_ni_syscall /* res. for getpmsg */ 291 PTR sys_ni_syscall /* 5175 for putpmsg */ 292 PTR sys_ni_syscall /* res. for afs_syscall */ 293 PTR sys_ni_syscall /* res. for security */ 294 PTR sys_gettid 295 PTR sys_readahead 296 PTR sys_setxattr /* 5180 */ 297 PTR sys_lsetxattr 298 PTR sys_fsetxattr 299 PTR sys_getxattr 300 PTR sys_lgetxattr 301 PTR sys_fgetxattr /* 5185 */ 302 PTR sys_listxattr 303 PTR sys_llistxattr 304 PTR sys_flistxattr 305 PTR sys_removexattr 306 PTR sys_lremovexattr /* 5190 */ 307 PTR sys_fremovexattr 308 PTR sys_tkill 309 PTR sys_ni_syscall 310 PTR sys_futex 311 PTR sys_sched_setaffinity /* 5195 */ 312 PTR sys_sched_getaffinity 313 PTR sys_cacheflush 314 PTR sys_cachectl 315 PTR sys_sysmips 316 PTR sys_io_setup /* 5200 */ 317 PTR sys_io_destroy 318 PTR sys_io_getevents 319 PTR sys_io_submit 320 PTR sys_io_cancel 321 PTR sys_exit_group /* 5205 */ 322 PTR sys_lookup_dcookie 323 PTR sys_epoll_create 324 PTR sys_epoll_ctl 325 PTR sys_epoll_wait 326 PTR sys_remap_file_pages /* 5210 */ 327 PTR sys_rt_sigreturn 328 PTR sys_set_tid_address 329 PTR sys_restart_syscall 330 PTR sys_semtimedop 331 PTR sys_fadvise64_64 /* 5215 */ 332 PTR sys_timer_create 333 PTR sys_timer_settime 334 PTR sys_timer_gettime 335 PTR sys_timer_getoverrun 336 PTR sys_timer_delete /* 5220 */ 337 PTR sys_clock_settime 338 PTR sys_clock_gettime 339 PTR sys_clock_getres 340 PTR sys_clock_nanosleep 341 PTR sys_tgkill /* 5225 */ 342 PTR sys_utimes 343 PTR sys_mbind 344 PTR sys_get_mempolicy 345 PTR sys_set_mempolicy 346 PTR sys_mq_open /* 5230 */ 347 PTR sys_mq_unlink 348 PTR sys_mq_timedsend 349 PTR sys_mq_timedreceive 350 PTR sys_mq_notify 351 PTR sys_mq_getsetattr /* 5235 */ 352 PTR sys_ni_syscall /* sys_vserver */ 353 PTR sys_waitid 354 PTR sys_ni_syscall /* available, was setaltroot */ 355 PTR sys_add_key 356 PTR sys_request_key /* 5240 */ 357 PTR sys_keyctl 358 PTR sys_set_thread_area 359 PTR sys_inotify_init 360 PTR sys_inotify_add_watch 361 PTR sys_inotify_rm_watch /* 5245 */ 362 PTR sys_migrate_pages 363 PTR sys_openat 364 PTR sys_mkdirat 365 PTR sys_mknodat 366 PTR sys_fchownat /* 5250 */ 367 PTR sys_futimesat 368 PTR sys_newfstatat 369 PTR sys_unlinkat 370 PTR sys_renameat 371 PTR sys_linkat /* 5255 */ 372 PTR sys_symlinkat 373 PTR sys_readlinkat 374 PTR sys_fchmodat 375 PTR sys_faccessat 376 PTR sys_pselect6 /* 5260 */ 377 PTR sys_ppoll 378 PTR sys_unshare 379 PTR sys_splice 380 PTR sys_sync_file_range 381 PTR sys_tee /* 5265 */ 382 PTR sys_vmsplice 383 PTR sys_move_pages 384 PTR sys_set_robust_list 385 PTR sys_get_robust_list 386 PTR sys_kexec_load /* 5270 */ 387 PTR sys_getcpu 388 PTR sys_epoll_pwait 389 PTR sys_ioprio_set 390 PTR sys_ioprio_get 391 PTR sys_utimensat /* 5275 */ 392 PTR sys_signalfd 393 PTR sys_ni_syscall /* was timerfd */ 394 PTR sys_eventfd 395 PTR sys_fallocate 396 PTR sys_timerfd_create /* 5280 */ 397 PTR sys_timerfd_gettime 398 PTR sys_timerfd_settime 399 PTR sys_signalfd4 400 PTR sys_eventfd2 401 PTR sys_epoll_create1 /* 5285 */ 402 PTR sys_dup3 403 PTR sys_pipe2 404 PTR sys_inotify_init1 405 PTR sys_preadv 406 PTR sys_pwritev /* 5290 */ 407 PTR sys_rt_tgsigqueueinfo 408 PTR sys_perf_event_open 409 PTR sys_accept4 410 PTR sys_recvmmsg 411 PTR sys_fanotify_init /* 5295 */ 412 PTR sys_fanotify_mark 413 PTR sys_prlimit64 414 PTR sys_name_to_handle_at 415 PTR sys_open_by_handle_at 416 PTR sys_clock_adjtime /* 5300 */ 417 PTR sys_syncfs 418 PTR sys_sendmmsg 419 PTR sys_setns 420 PTR sys_process_vm_readv 421 PTR sys_process_vm_writev /* 5305 */ 422 PTR sys_kcmp 423 PTR sys_finit_module 424 PTR sys_getdents64 425 PTR sys_sched_setattr 426 PTR sys_sched_getattr /* 5310 */ 427 PTR sys_renameat2 428 PTR sys_seccomp 429 PTR sys_getrandom 430 PTR sys_memfd_create 431 PTR sys_bpf /* 5315 */ 432 PTR sys_execveat 433 PTR sys_userfaultfd 434 PTR sys_membarrier 435 PTR sys_mlock2 436 .size sys_call_table,.-sys_call_table 437