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_WORK_SYSCALL_ENTRY 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 j syscall_exit_partial 76 77/* ------------------------------------------------------------------------ */ 78 79syscall_trace_entry: 80 SAVE_STATIC 81 move s0, t2 82 move a0, sp 83 move a1, v0 84 jal syscall_trace_enter 85 86 bltz v0, 2f # seccomp failed? Skip syscall 87 88 move t0, s0 89 RESTORE_STATIC 90 ld a0, PT_R4(sp) # Restore argument registers 91 ld a1, PT_R5(sp) 92 ld a2, PT_R6(sp) 93 ld a3, PT_R7(sp) 94 ld a4, PT_R8(sp) 95 ld a5, PT_R9(sp) 96 jalr t0 97 98 li t0, -EMAXERRNO - 1 # error? 99 sltu t0, t0, v0 100 sd t0, PT_R7(sp) # set error flag 101 beqz t0, 1f 102 103 ld t1, PT_R2(sp) # syscall number 104 dnegu v0 # error 105 sd t1, PT_R0(sp) # save it for syscall restarting 1061: sd v0, PT_R2(sp) # result 107 1082: j syscall_exit 109 110illegal_syscall: 111 /* This also isn't a 64-bit syscall, throw an error. */ 112 li v0, ENOSYS # error 113 sd v0, PT_R2(sp) 114 li t0, 1 # set error flag 115 sd t0, PT_R7(sp) 116 j n64_syscall_exit 117 END(handle_sys64) 118 119 .align 3 120 .type sys_call_table, @object 121EXPORT(sys_call_table) 122 PTR sys_read /* 5000 */ 123 PTR sys_write 124 PTR sys_open 125 PTR sys_close 126 PTR sys_newstat 127 PTR sys_newfstat /* 5005 */ 128 PTR sys_newlstat 129 PTR sys_poll 130 PTR sys_lseek 131 PTR sys_mips_mmap 132 PTR sys_mprotect /* 5010 */ 133 PTR sys_munmap 134 PTR sys_brk 135 PTR sys_rt_sigaction 136 PTR sys_rt_sigprocmask 137 PTR sys_ioctl /* 5015 */ 138 PTR sys_pread64 139 PTR sys_pwrite64 140 PTR sys_readv 141 PTR sys_writev 142 PTR sys_access /* 5020 */ 143 PTR sysm_pipe 144 PTR sys_select 145 PTR sys_sched_yield 146 PTR sys_mremap 147 PTR sys_msync /* 5025 */ 148 PTR sys_mincore 149 PTR sys_madvise 150 PTR sys_shmget 151 PTR sys_shmat 152 PTR sys_shmctl /* 5030 */ 153 PTR sys_dup 154 PTR sys_dup2 155 PTR sys_pause 156 PTR sys_nanosleep 157 PTR sys_getitimer /* 5035 */ 158 PTR sys_setitimer 159 PTR sys_alarm 160 PTR sys_getpid 161 PTR sys_sendfile64 162 PTR sys_socket /* 5040 */ 163 PTR sys_connect 164 PTR sys_accept 165 PTR sys_sendto 166 PTR sys_recvfrom 167 PTR sys_sendmsg /* 5045 */ 168 PTR sys_recvmsg 169 PTR sys_shutdown 170 PTR sys_bind 171 PTR sys_listen 172 PTR sys_getsockname /* 5050 */ 173 PTR sys_getpeername 174 PTR sys_socketpair 175 PTR sys_setsockopt 176 PTR sys_getsockopt 177 PTR __sys_clone /* 5055 */ 178 PTR __sys_fork 179 PTR sys_execve 180 PTR sys_exit 181 PTR sys_wait4 182 PTR sys_kill /* 5060 */ 183 PTR sys_newuname 184 PTR sys_semget 185 PTR sys_semop 186 PTR sys_semctl 187 PTR sys_shmdt /* 5065 */ 188 PTR sys_msgget 189 PTR sys_msgsnd 190 PTR sys_msgrcv 191 PTR sys_msgctl 192 PTR sys_fcntl /* 5070 */ 193 PTR sys_flock 194 PTR sys_fsync 195 PTR sys_fdatasync 196 PTR sys_truncate 197 PTR sys_ftruncate /* 5075 */ 198 PTR sys_getdents 199 PTR sys_getcwd 200 PTR sys_chdir 201 PTR sys_fchdir 202 PTR sys_rename /* 5080 */ 203 PTR sys_mkdir 204 PTR sys_rmdir 205 PTR sys_creat 206 PTR sys_link 207 PTR sys_unlink /* 5085 */ 208 PTR sys_symlink 209 PTR sys_readlink 210 PTR sys_chmod 211 PTR sys_fchmod 212 PTR sys_chown /* 5090 */ 213 PTR sys_fchown 214 PTR sys_lchown 215 PTR sys_umask 216 PTR sys_gettimeofday 217 PTR sys_getrlimit /* 5095 */ 218 PTR sys_getrusage 219 PTR sys_sysinfo 220 PTR sys_times 221 PTR sys_ptrace 222 PTR sys_getuid /* 5100 */ 223 PTR sys_syslog 224 PTR sys_getgid 225 PTR sys_setuid 226 PTR sys_setgid 227 PTR sys_geteuid /* 5105 */ 228 PTR sys_getegid 229 PTR sys_setpgid 230 PTR sys_getppid 231 PTR sys_getpgrp 232 PTR sys_setsid /* 5110 */ 233 PTR sys_setreuid 234 PTR sys_setregid 235 PTR sys_getgroups 236 PTR sys_setgroups 237 PTR sys_setresuid /* 5115 */ 238 PTR sys_getresuid 239 PTR sys_setresgid 240 PTR sys_getresgid 241 PTR sys_getpgid 242 PTR sys_setfsuid /* 5120 */ 243 PTR sys_setfsgid 244 PTR sys_getsid 245 PTR sys_capget 246 PTR sys_capset 247 PTR sys_rt_sigpending /* 5125 */ 248 PTR sys_rt_sigtimedwait 249 PTR sys_rt_sigqueueinfo 250 PTR sys_rt_sigsuspend 251 PTR sys_sigaltstack 252 PTR sys_utime /* 5130 */ 253 PTR sys_mknod 254 PTR sys_personality 255 PTR sys_ustat 256 PTR sys_statfs 257 PTR sys_fstatfs /* 5135 */ 258 PTR sys_sysfs 259 PTR sys_getpriority 260 PTR sys_setpriority 261 PTR sys_sched_setparam 262 PTR sys_sched_getparam /* 5140 */ 263 PTR sys_sched_setscheduler 264 PTR sys_sched_getscheduler 265 PTR sys_sched_get_priority_max 266 PTR sys_sched_get_priority_min 267 PTR sys_sched_rr_get_interval /* 5145 */ 268 PTR sys_mlock 269 PTR sys_munlock 270 PTR sys_mlockall 271 PTR sys_munlockall 272 PTR sys_vhangup /* 5150 */ 273 PTR sys_pivot_root 274 PTR sys_sysctl 275 PTR sys_prctl 276 PTR sys_adjtimex 277 PTR sys_setrlimit /* 5155 */ 278 PTR sys_chroot 279 PTR sys_sync 280 PTR sys_acct 281 PTR sys_settimeofday 282 PTR sys_mount /* 5160 */ 283 PTR sys_umount 284 PTR sys_swapon 285 PTR sys_swapoff 286 PTR sys_reboot 287 PTR sys_sethostname /* 5165 */ 288 PTR sys_setdomainname 289 PTR sys_ni_syscall /* was create_module */ 290 PTR sys_init_module 291 PTR sys_delete_module 292 PTR sys_ni_syscall /* 5170, was get_kernel_syms */ 293 PTR sys_ni_syscall /* was query_module */ 294 PTR sys_quotactl 295 PTR sys_ni_syscall /* was nfsservctl */ 296 PTR sys_ni_syscall /* res. for getpmsg */ 297 PTR sys_ni_syscall /* 5175 for putpmsg */ 298 PTR sys_ni_syscall /* res. for afs_syscall */ 299 PTR sys_ni_syscall /* res. for security */ 300 PTR sys_gettid 301 PTR sys_readahead 302 PTR sys_setxattr /* 5180 */ 303 PTR sys_lsetxattr 304 PTR sys_fsetxattr 305 PTR sys_getxattr 306 PTR sys_lgetxattr 307 PTR sys_fgetxattr /* 5185 */ 308 PTR sys_listxattr 309 PTR sys_llistxattr 310 PTR sys_flistxattr 311 PTR sys_removexattr 312 PTR sys_lremovexattr /* 5190 */ 313 PTR sys_fremovexattr 314 PTR sys_tkill 315 PTR sys_ni_syscall 316 PTR sys_futex 317 PTR sys_sched_setaffinity /* 5195 */ 318 PTR sys_sched_getaffinity 319 PTR sys_cacheflush 320 PTR sys_cachectl 321 PTR sys_sysmips 322 PTR sys_io_setup /* 5200 */ 323 PTR sys_io_destroy 324 PTR sys_io_getevents 325 PTR sys_io_submit 326 PTR sys_io_cancel 327 PTR sys_exit_group /* 5205 */ 328 PTR sys_lookup_dcookie 329 PTR sys_epoll_create 330 PTR sys_epoll_ctl 331 PTR sys_epoll_wait 332 PTR sys_remap_file_pages /* 5210 */ 333 PTR sys_rt_sigreturn 334 PTR sys_set_tid_address 335 PTR sys_restart_syscall 336 PTR sys_semtimedop 337 PTR sys_fadvise64_64 /* 5215 */ 338 PTR sys_timer_create 339 PTR sys_timer_settime 340 PTR sys_timer_gettime 341 PTR sys_timer_getoverrun 342 PTR sys_timer_delete /* 5220 */ 343 PTR sys_clock_settime 344 PTR sys_clock_gettime 345 PTR sys_clock_getres 346 PTR sys_clock_nanosleep 347 PTR sys_tgkill /* 5225 */ 348 PTR sys_utimes 349 PTR sys_mbind 350 PTR sys_get_mempolicy 351 PTR sys_set_mempolicy 352 PTR sys_mq_open /* 5230 */ 353 PTR sys_mq_unlink 354 PTR sys_mq_timedsend 355 PTR sys_mq_timedreceive 356 PTR sys_mq_notify 357 PTR sys_mq_getsetattr /* 5235 */ 358 PTR sys_ni_syscall /* sys_vserver */ 359 PTR sys_waitid 360 PTR sys_ni_syscall /* available, was setaltroot */ 361 PTR sys_add_key 362 PTR sys_request_key /* 5240 */ 363 PTR sys_keyctl 364 PTR sys_set_thread_area 365 PTR sys_inotify_init 366 PTR sys_inotify_add_watch 367 PTR sys_inotify_rm_watch /* 5245 */ 368 PTR sys_migrate_pages 369 PTR sys_openat 370 PTR sys_mkdirat 371 PTR sys_mknodat 372 PTR sys_fchownat /* 5250 */ 373 PTR sys_futimesat 374 PTR sys_newfstatat 375 PTR sys_unlinkat 376 PTR sys_renameat 377 PTR sys_linkat /* 5255 */ 378 PTR sys_symlinkat 379 PTR sys_readlinkat 380 PTR sys_fchmodat 381 PTR sys_faccessat 382 PTR sys_pselect6 /* 5260 */ 383 PTR sys_ppoll 384 PTR sys_unshare 385 PTR sys_splice 386 PTR sys_sync_file_range 387 PTR sys_tee /* 5265 */ 388 PTR sys_vmsplice 389 PTR sys_move_pages 390 PTR sys_set_robust_list 391 PTR sys_get_robust_list 392 PTR sys_kexec_load /* 5270 */ 393 PTR sys_getcpu 394 PTR sys_epoll_pwait 395 PTR sys_ioprio_set 396 PTR sys_ioprio_get 397 PTR sys_utimensat /* 5275 */ 398 PTR sys_signalfd 399 PTR sys_ni_syscall /* was timerfd */ 400 PTR sys_eventfd 401 PTR sys_fallocate 402 PTR sys_timerfd_create /* 5280 */ 403 PTR sys_timerfd_gettime 404 PTR sys_timerfd_settime 405 PTR sys_signalfd4 406 PTR sys_eventfd2 407 PTR sys_epoll_create1 /* 5285 */ 408 PTR sys_dup3 409 PTR sys_pipe2 410 PTR sys_inotify_init1 411 PTR sys_preadv 412 PTR sys_pwritev /* 5290 */ 413 PTR sys_rt_tgsigqueueinfo 414 PTR sys_perf_event_open 415 PTR sys_accept4 416 PTR sys_recvmmsg 417 PTR sys_fanotify_init /* 5295 */ 418 PTR sys_fanotify_mark 419 PTR sys_prlimit64 420 PTR sys_name_to_handle_at 421 PTR sys_open_by_handle_at 422 PTR sys_clock_adjtime /* 5300 */ 423 PTR sys_syncfs 424 PTR sys_sendmmsg 425 PTR sys_setns 426 PTR sys_process_vm_readv 427 PTR sys_process_vm_writev /* 5305 */ 428 PTR sys_kcmp 429 PTR sys_finit_module 430 PTR sys_getdents64 431 PTR sys_sched_setattr 432 PTR sys_sched_getattr /* 5310 */ 433 PTR sys_renameat2 434 PTR sys_seccomp 435 PTR sys_getrandom 436 PTR sys_memfd_create 437 PTR sys_bpf /* 5315 */ 438 PTR sys_execveat 439 .size sys_call_table,.-sys_call_table 440