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 a0, sp 86 move a1, v0 87 jal syscall_trace_enter 88 89 bltz v0, 1f # seccomp failed? Skip syscall 90 91 RESTORE_STATIC 92 ld v0, PT_R2(sp) # Restore syscall (maybe modified) 93 ld a0, PT_R4(sp) # Restore argument registers 94 ld a1, PT_R5(sp) 95 ld a2, PT_R6(sp) 96 ld a3, PT_R7(sp) 97 ld a4, PT_R8(sp) 98 ld a5, PT_R9(sp) 99 j syscall_common 100 1011: j syscall_exit 102 103illegal_syscall: 104 /* This also isn't a 64-bit syscall, throw an error. */ 105 li v0, ENOSYS # error 106 sd v0, PT_R2(sp) 107 li t0, 1 # set error flag 108 sd t0, PT_R7(sp) 109 j n64_syscall_exit 110 END(handle_sys64) 111 112 .align 3 113 .type sys_call_table, @object 114EXPORT(sys_call_table) 115 PTR sys_read /* 5000 */ 116 PTR sys_write 117 PTR sys_open 118 PTR sys_close 119 PTR sys_newstat 120 PTR sys_newfstat /* 5005 */ 121 PTR sys_newlstat 122 PTR sys_poll 123 PTR sys_lseek 124 PTR sys_mips_mmap 125 PTR sys_mprotect /* 5010 */ 126 PTR sys_munmap 127 PTR sys_brk 128 PTR sys_rt_sigaction 129 PTR sys_rt_sigprocmask 130 PTR sys_ioctl /* 5015 */ 131 PTR sys_pread64 132 PTR sys_pwrite64 133 PTR sys_readv 134 PTR sys_writev 135 PTR sys_access /* 5020 */ 136 PTR sysm_pipe 137 PTR sys_select 138 PTR sys_sched_yield 139 PTR sys_mremap 140 PTR sys_msync /* 5025 */ 141 PTR sys_mincore 142 PTR sys_madvise 143 PTR sys_shmget 144 PTR sys_shmat 145 PTR sys_shmctl /* 5030 */ 146 PTR sys_dup 147 PTR sys_dup2 148 PTR sys_pause 149 PTR sys_nanosleep 150 PTR sys_getitimer /* 5035 */ 151 PTR sys_setitimer 152 PTR sys_alarm 153 PTR sys_getpid 154 PTR sys_sendfile64 155 PTR sys_socket /* 5040 */ 156 PTR sys_connect 157 PTR sys_accept 158 PTR sys_sendto 159 PTR sys_recvfrom 160 PTR sys_sendmsg /* 5045 */ 161 PTR sys_recvmsg 162 PTR sys_shutdown 163 PTR sys_bind 164 PTR sys_listen 165 PTR sys_getsockname /* 5050 */ 166 PTR sys_getpeername 167 PTR sys_socketpair 168 PTR sys_setsockopt 169 PTR sys_getsockopt 170 PTR __sys_clone /* 5055 */ 171 PTR __sys_fork 172 PTR sys_execve 173 PTR sys_exit 174 PTR sys_wait4 175 PTR sys_kill /* 5060 */ 176 PTR sys_newuname 177 PTR sys_semget 178 PTR sys_semop 179 PTR sys_semctl 180 PTR sys_shmdt /* 5065 */ 181 PTR sys_msgget 182 PTR sys_msgsnd 183 PTR sys_msgrcv 184 PTR sys_msgctl 185 PTR sys_fcntl /* 5070 */ 186 PTR sys_flock 187 PTR sys_fsync 188 PTR sys_fdatasync 189 PTR sys_truncate 190 PTR sys_ftruncate /* 5075 */ 191 PTR sys_getdents 192 PTR sys_getcwd 193 PTR sys_chdir 194 PTR sys_fchdir 195 PTR sys_rename /* 5080 */ 196 PTR sys_mkdir 197 PTR sys_rmdir 198 PTR sys_creat 199 PTR sys_link 200 PTR sys_unlink /* 5085 */ 201 PTR sys_symlink 202 PTR sys_readlink 203 PTR sys_chmod 204 PTR sys_fchmod 205 PTR sys_chown /* 5090 */ 206 PTR sys_fchown 207 PTR sys_lchown 208 PTR sys_umask 209 PTR sys_gettimeofday 210 PTR sys_getrlimit /* 5095 */ 211 PTR sys_getrusage 212 PTR sys_sysinfo 213 PTR sys_times 214 PTR sys_ptrace 215 PTR sys_getuid /* 5100 */ 216 PTR sys_syslog 217 PTR sys_getgid 218 PTR sys_setuid 219 PTR sys_setgid 220 PTR sys_geteuid /* 5105 */ 221 PTR sys_getegid 222 PTR sys_setpgid 223 PTR sys_getppid 224 PTR sys_getpgrp 225 PTR sys_setsid /* 5110 */ 226 PTR sys_setreuid 227 PTR sys_setregid 228 PTR sys_getgroups 229 PTR sys_setgroups 230 PTR sys_setresuid /* 5115 */ 231 PTR sys_getresuid 232 PTR sys_setresgid 233 PTR sys_getresgid 234 PTR sys_getpgid 235 PTR sys_setfsuid /* 5120 */ 236 PTR sys_setfsgid 237 PTR sys_getsid 238 PTR sys_capget 239 PTR sys_capset 240 PTR sys_rt_sigpending /* 5125 */ 241 PTR sys_rt_sigtimedwait 242 PTR sys_rt_sigqueueinfo 243 PTR sys_rt_sigsuspend 244 PTR sys_sigaltstack 245 PTR sys_utime /* 5130 */ 246 PTR sys_mknod 247 PTR sys_personality 248 PTR sys_ustat 249 PTR sys_statfs 250 PTR sys_fstatfs /* 5135 */ 251 PTR sys_sysfs 252 PTR sys_getpriority 253 PTR sys_setpriority 254 PTR sys_sched_setparam 255 PTR sys_sched_getparam /* 5140 */ 256 PTR sys_sched_setscheduler 257 PTR sys_sched_getscheduler 258 PTR sys_sched_get_priority_max 259 PTR sys_sched_get_priority_min 260 PTR sys_sched_rr_get_interval /* 5145 */ 261 PTR sys_mlock 262 PTR sys_munlock 263 PTR sys_mlockall 264 PTR sys_munlockall 265 PTR sys_vhangup /* 5150 */ 266 PTR sys_pivot_root 267 PTR sys_sysctl 268 PTR sys_prctl 269 PTR sys_adjtimex 270 PTR sys_setrlimit /* 5155 */ 271 PTR sys_chroot 272 PTR sys_sync 273 PTR sys_acct 274 PTR sys_settimeofday 275 PTR sys_mount /* 5160 */ 276 PTR sys_umount 277 PTR sys_swapon 278 PTR sys_swapoff 279 PTR sys_reboot 280 PTR sys_sethostname /* 5165 */ 281 PTR sys_setdomainname 282 PTR sys_ni_syscall /* was create_module */ 283 PTR sys_init_module 284 PTR sys_delete_module 285 PTR sys_ni_syscall /* 5170, was get_kernel_syms */ 286 PTR sys_ni_syscall /* was query_module */ 287 PTR sys_quotactl 288 PTR sys_ni_syscall /* was nfsservctl */ 289 PTR sys_ni_syscall /* res. for getpmsg */ 290 PTR sys_ni_syscall /* 5175 for putpmsg */ 291 PTR sys_ni_syscall /* res. for afs_syscall */ 292 PTR sys_ni_syscall /* res. for security */ 293 PTR sys_gettid 294 PTR sys_readahead 295 PTR sys_setxattr /* 5180 */ 296 PTR sys_lsetxattr 297 PTR sys_fsetxattr 298 PTR sys_getxattr 299 PTR sys_lgetxattr 300 PTR sys_fgetxattr /* 5185 */ 301 PTR sys_listxattr 302 PTR sys_llistxattr 303 PTR sys_flistxattr 304 PTR sys_removexattr 305 PTR sys_lremovexattr /* 5190 */ 306 PTR sys_fremovexattr 307 PTR sys_tkill 308 PTR sys_ni_syscall 309 PTR sys_futex 310 PTR sys_sched_setaffinity /* 5195 */ 311 PTR sys_sched_getaffinity 312 PTR sys_cacheflush 313 PTR sys_cachectl 314 PTR __sys_sysmips 315 PTR sys_io_setup /* 5200 */ 316 PTR sys_io_destroy 317 PTR sys_io_getevents 318 PTR sys_io_submit 319 PTR sys_io_cancel 320 PTR sys_exit_group /* 5205 */ 321 PTR sys_lookup_dcookie 322 PTR sys_epoll_create 323 PTR sys_epoll_ctl 324 PTR sys_epoll_wait 325 PTR sys_remap_file_pages /* 5210 */ 326 PTR sys_rt_sigreturn 327 PTR sys_set_tid_address 328 PTR sys_restart_syscall 329 PTR sys_semtimedop 330 PTR sys_fadvise64_64 /* 5215 */ 331 PTR sys_timer_create 332 PTR sys_timer_settime 333 PTR sys_timer_gettime 334 PTR sys_timer_getoverrun 335 PTR sys_timer_delete /* 5220 */ 336 PTR sys_clock_settime 337 PTR sys_clock_gettime 338 PTR sys_clock_getres 339 PTR sys_clock_nanosleep 340 PTR sys_tgkill /* 5225 */ 341 PTR sys_utimes 342 PTR sys_mbind 343 PTR sys_get_mempolicy 344 PTR sys_set_mempolicy 345 PTR sys_mq_open /* 5230 */ 346 PTR sys_mq_unlink 347 PTR sys_mq_timedsend 348 PTR sys_mq_timedreceive 349 PTR sys_mq_notify 350 PTR sys_mq_getsetattr /* 5235 */ 351 PTR sys_ni_syscall /* sys_vserver */ 352 PTR sys_waitid 353 PTR sys_ni_syscall /* available, was setaltroot */ 354 PTR sys_add_key 355 PTR sys_request_key /* 5240 */ 356 PTR sys_keyctl 357 PTR sys_set_thread_area 358 PTR sys_inotify_init 359 PTR sys_inotify_add_watch 360 PTR sys_inotify_rm_watch /* 5245 */ 361 PTR sys_migrate_pages 362 PTR sys_openat 363 PTR sys_mkdirat 364 PTR sys_mknodat 365 PTR sys_fchownat /* 5250 */ 366 PTR sys_futimesat 367 PTR sys_newfstatat 368 PTR sys_unlinkat 369 PTR sys_renameat 370 PTR sys_linkat /* 5255 */ 371 PTR sys_symlinkat 372 PTR sys_readlinkat 373 PTR sys_fchmodat 374 PTR sys_faccessat 375 PTR sys_pselect6 /* 5260 */ 376 PTR sys_ppoll 377 PTR sys_unshare 378 PTR sys_splice 379 PTR sys_sync_file_range 380 PTR sys_tee /* 5265 */ 381 PTR sys_vmsplice 382 PTR sys_move_pages 383 PTR sys_set_robust_list 384 PTR sys_get_robust_list 385 PTR sys_kexec_load /* 5270 */ 386 PTR sys_getcpu 387 PTR sys_epoll_pwait 388 PTR sys_ioprio_set 389 PTR sys_ioprio_get 390 PTR sys_utimensat /* 5275 */ 391 PTR sys_signalfd 392 PTR sys_ni_syscall /* was timerfd */ 393 PTR sys_eventfd 394 PTR sys_fallocate 395 PTR sys_timerfd_create /* 5280 */ 396 PTR sys_timerfd_gettime 397 PTR sys_timerfd_settime 398 PTR sys_signalfd4 399 PTR sys_eventfd2 400 PTR sys_epoll_create1 /* 5285 */ 401 PTR sys_dup3 402 PTR sys_pipe2 403 PTR sys_inotify_init1 404 PTR sys_preadv 405 PTR sys_pwritev /* 5290 */ 406 PTR sys_rt_tgsigqueueinfo 407 PTR sys_perf_event_open 408 PTR sys_accept4 409 PTR sys_recvmmsg 410 PTR sys_fanotify_init /* 5295 */ 411 PTR sys_fanotify_mark 412 PTR sys_prlimit64 413 PTR sys_name_to_handle_at 414 PTR sys_open_by_handle_at 415 PTR sys_clock_adjtime /* 5300 */ 416 PTR sys_syncfs 417 PTR sys_sendmmsg 418 PTR sys_setns 419 PTR sys_process_vm_readv 420 PTR sys_process_vm_writev /* 5305 */ 421 PTR sys_kcmp 422 PTR sys_finit_module 423 PTR sys_getdents64 424 PTR sys_sched_setattr 425 PTR sys_sched_getattr /* 5310 */ 426 PTR sys_renameat2 427 PTR sys_seccomp 428 PTR sys_getrandom 429 PTR sys_memfd_create 430 PTR sys_bpf /* 5315 */ 431 PTR sys_execveat 432 PTR sys_userfaultfd 433 PTR sys_membarrier 434 PTR sys_mlock2 435 PTR sys_copy_file_range /* 5320 */ 436 PTR sys_preadv2 437 PTR sys_pwritev2 438 PTR sys_pkey_mprotect 439 PTR sys_pkey_alloc 440 PTR sys_pkey_free /* 5325 */ 441 PTR sys_statx 442 PTR sys_rseq 443 PTR sys_io_pgetevents 444 .size sys_call_table,.-sys_call_table 445
