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 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/thread_info.h> 18#include <asm/unistd.h> 19 20#ifndef CONFIG_MIPS32_O32 21/* No O32, so define handle_sys here */ 22#define handle_sysn32 handle_sys 23#endif 24 25 .align 5 26NESTED(handle_sysn32, PT_SIZE, sp) 27#ifndef CONFIG_MIPS32_O32 28 .set noat 29 SAVE_SOME 30 TRACE_IRQS_ON_RELOAD 31 STI 32 .set at 33#endif 34 35 dsubu t0, v0, __NR_N32_Linux # check syscall number 36 sltiu t0, t0, __NR_N32_Linux_syscalls + 1 37 38#ifndef CONFIG_MIPS32_O32 39 ld t1, PT_EPC(sp) # skip syscall on return 40 daddiu t1, 4 # skip to next instruction 41 sd t1, PT_EPC(sp) 42#endif 43 beqz t0, not_n32_scall 44 45 dsll t0, v0, 3 # offset into table 46 ld t2, (sysn32_call_table - (__NR_N32_Linux * 8))(t0) 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, n32_syscall_trace_entry 54 55syscall_common: 56 jalr t2 # Do The Real Thing (TM) 57 58 li t0, -EMAXERRNO - 1 # error? 59 sltu t0, t0, v0 60 sd t0, PT_R7(sp) # set error flag 61 beqz t0, 1f 62 63 ld t1, PT_R2(sp) # syscall number 64 dnegu v0 # error 65 sd t1, PT_R0(sp) # save it for syscall restarting 661: sd v0, PT_R2(sp) # result 67 68 j syscall_exit_partial 69 70/* ------------------------------------------------------------------------ */ 71 72n32_syscall_trace_entry: 73 SAVE_STATIC 74 move s0, t2 75 move a0, sp 76 move a1, v0 77 jal syscall_trace_enter 78 79 bltz v0, 1f # seccomp failed? Skip syscall 80 81 move t2, s0 82 RESTORE_STATIC 83 ld a0, PT_R4(sp) # Restore argument registers 84 ld a1, PT_R5(sp) 85 ld a2, PT_R6(sp) 86 ld a3, PT_R7(sp) 87 ld a4, PT_R8(sp) 88 ld a5, PT_R9(sp) 89 j syscall_common 90 911: j syscall_exit 92 93not_n32_scall: 94 /* This is not an n32 compatibility syscall, pass it on to 95 the n64 syscall handlers. */ 96 j handle_sys64 97 98 END(handle_sysn32) 99 100 .type sysn32_call_table, @object 101EXPORT(sysn32_call_table) 102 PTR sys_read /* 6000 */ 103 PTR sys_write 104 PTR sys_open 105 PTR sys_close 106 PTR sys_newstat 107 PTR sys_newfstat /* 6005 */ 108 PTR sys_newlstat 109 PTR sys_poll 110 PTR sys_lseek 111 PTR sys_mips_mmap 112 PTR sys_mprotect /* 6010 */ 113 PTR sys_munmap 114 PTR sys_brk 115 PTR compat_sys_rt_sigaction 116 PTR compat_sys_rt_sigprocmask 117 PTR compat_sys_ioctl /* 6015 */ 118 PTR sys_pread64 119 PTR sys_pwrite64 120 PTR compat_sys_readv 121 PTR compat_sys_writev 122 PTR sys_access /* 6020 */ 123 PTR sysm_pipe 124 PTR compat_sys_select 125 PTR sys_sched_yield 126 PTR sys_mremap 127 PTR sys_msync /* 6025 */ 128 PTR sys_mincore 129 PTR sys_madvise 130 PTR sys_shmget 131 PTR sys_shmat 132 PTR compat_sys_shmctl /* 6030 */ 133 PTR sys_dup 134 PTR sys_dup2 135 PTR sys_pause 136 PTR compat_sys_nanosleep 137 PTR compat_sys_getitimer /* 6035 */ 138 PTR compat_sys_setitimer 139 PTR sys_alarm 140 PTR sys_getpid 141 PTR compat_sys_sendfile 142 PTR sys_socket /* 6040 */ 143 PTR sys_connect 144 PTR sys_accept 145 PTR sys_sendto 146 PTR compat_sys_recvfrom 147 PTR compat_sys_sendmsg /* 6045 */ 148 PTR compat_sys_recvmsg 149 PTR sys_shutdown 150 PTR sys_bind 151 PTR sys_listen 152 PTR sys_getsockname /* 6050 */ 153 PTR sys_getpeername 154 PTR sys_socketpair 155 PTR compat_sys_setsockopt 156 PTR compat_sys_getsockopt 157 PTR __sys_clone /* 6055 */ 158 PTR __sys_fork 159 PTR compat_sys_execve 160 PTR sys_exit 161 PTR compat_sys_wait4 162 PTR sys_kill /* 6060 */ 163 PTR sys_newuname 164 PTR sys_semget 165 PTR sys_semop 166 PTR compat_sys_semctl 167 PTR sys_shmdt /* 6065 */ 168 PTR sys_msgget 169 PTR compat_sys_msgsnd 170 PTR compat_sys_msgrcv 171 PTR compat_sys_msgctl 172 PTR compat_sys_fcntl /* 6070 */ 173 PTR sys_flock 174 PTR sys_fsync 175 PTR sys_fdatasync 176 PTR sys_truncate 177 PTR sys_ftruncate /* 6075 */ 178 PTR compat_sys_getdents 179 PTR sys_getcwd 180 PTR sys_chdir 181 PTR sys_fchdir 182 PTR sys_rename /* 6080 */ 183 PTR sys_mkdir 184 PTR sys_rmdir 185 PTR sys_creat 186 PTR sys_link 187 PTR sys_unlink /* 6085 */ 188 PTR sys_symlink 189 PTR sys_readlink 190 PTR sys_chmod 191 PTR sys_fchmod 192 PTR sys_chown /* 6090 */ 193 PTR sys_fchown 194 PTR sys_lchown 195 PTR sys_umask 196 PTR compat_sys_gettimeofday 197 PTR compat_sys_getrlimit /* 6095 */ 198 PTR compat_sys_getrusage 199 PTR compat_sys_sysinfo 200 PTR compat_sys_times 201 PTR compat_sys_ptrace 202 PTR sys_getuid /* 6100 */ 203 PTR sys_syslog 204 PTR sys_getgid 205 PTR sys_setuid 206 PTR sys_setgid 207 PTR sys_geteuid /* 6105 */ 208 PTR sys_getegid 209 PTR sys_setpgid 210 PTR sys_getppid 211 PTR sys_getpgrp 212 PTR sys_setsid /* 6110 */ 213 PTR sys_setreuid 214 PTR sys_setregid 215 PTR sys_getgroups 216 PTR sys_setgroups 217 PTR sys_setresuid /* 6115 */ 218 PTR sys_getresuid 219 PTR sys_setresgid 220 PTR sys_getresgid 221 PTR sys_getpgid 222 PTR sys_setfsuid /* 6120 */ 223 PTR sys_setfsgid 224 PTR sys_getsid 225 PTR sys_capget 226 PTR sys_capset 227 PTR compat_sys_rt_sigpending /* 6125 */ 228 PTR compat_sys_rt_sigtimedwait 229 PTR compat_sys_rt_sigqueueinfo 230 PTR compat_sys_rt_sigsuspend 231 PTR compat_sys_sigaltstack 232 PTR compat_sys_utime /* 6130 */ 233 PTR sys_mknod 234 PTR sys_32_personality 235 PTR compat_sys_ustat 236 PTR compat_sys_statfs 237 PTR compat_sys_fstatfs /* 6135 */ 238 PTR sys_sysfs 239 PTR sys_getpriority 240 PTR sys_setpriority 241 PTR sys_sched_setparam 242 PTR sys_sched_getparam /* 6140 */ 243 PTR sys_sched_setscheduler 244 PTR sys_sched_getscheduler 245 PTR sys_sched_get_priority_max 246 PTR sys_sched_get_priority_min 247 PTR compat_sys_sched_rr_get_interval /* 6145 */ 248 PTR sys_mlock 249 PTR sys_munlock 250 PTR sys_mlockall 251 PTR sys_munlockall 252 PTR sys_vhangup /* 6150 */ 253 PTR sys_pivot_root 254 PTR compat_sys_sysctl 255 PTR sys_prctl 256 PTR compat_sys_adjtimex 257 PTR compat_sys_setrlimit /* 6155 */ 258 PTR sys_chroot 259 PTR sys_sync 260 PTR sys_acct 261 PTR compat_sys_settimeofday 262 PTR compat_sys_mount /* 6160 */ 263 PTR sys_umount 264 PTR sys_swapon 265 PTR sys_swapoff 266 PTR sys_reboot 267 PTR sys_sethostname /* 6165 */ 268 PTR sys_setdomainname 269 PTR sys_ni_syscall /* was create_module */ 270 PTR sys_init_module 271 PTR sys_delete_module 272 PTR sys_ni_syscall /* 6170, was get_kernel_syms */ 273 PTR sys_ni_syscall /* was query_module */ 274 PTR sys_quotactl 275 PTR sys_ni_syscall /* was nfsservctl */ 276 PTR sys_ni_syscall /* res. for getpmsg */ 277 PTR sys_ni_syscall /* 6175 for putpmsg */ 278 PTR sys_ni_syscall /* res. for afs_syscall */ 279 PTR sys_ni_syscall /* res. for security */ 280 PTR sys_gettid 281 PTR sys_readahead 282 PTR sys_setxattr /* 6180 */ 283 PTR sys_lsetxattr 284 PTR sys_fsetxattr 285 PTR sys_getxattr 286 PTR sys_lgetxattr 287 PTR sys_fgetxattr /* 6185 */ 288 PTR sys_listxattr 289 PTR sys_llistxattr 290 PTR sys_flistxattr 291 PTR sys_removexattr 292 PTR sys_lremovexattr /* 6190 */ 293 PTR sys_fremovexattr 294 PTR sys_tkill 295 PTR sys_ni_syscall 296 PTR compat_sys_futex 297 PTR compat_sys_sched_setaffinity /* 6195 */ 298 PTR compat_sys_sched_getaffinity 299 PTR sys_cacheflush 300 PTR sys_cachectl 301 PTR sys_sysmips 302 PTR compat_sys_io_setup /* 6200 */ 303 PTR sys_io_destroy 304 PTR compat_sys_io_getevents 305 PTR compat_sys_io_submit 306 PTR sys_io_cancel 307 PTR sys_exit_group /* 6205 */ 308 PTR sys_lookup_dcookie 309 PTR sys_epoll_create 310 PTR sys_epoll_ctl 311 PTR sys_epoll_wait 312 PTR sys_remap_file_pages /* 6210 */ 313 PTR sysn32_rt_sigreturn 314 PTR compat_sys_fcntl64 315 PTR sys_set_tid_address 316 PTR sys_restart_syscall 317 PTR compat_sys_semtimedop /* 6215 */ 318 PTR sys_fadvise64_64 319 PTR compat_sys_statfs64 320 PTR compat_sys_fstatfs64 321 PTR sys_sendfile64 322 PTR compat_sys_timer_create /* 6220 */ 323 PTR compat_sys_timer_settime 324 PTR compat_sys_timer_gettime 325 PTR sys_timer_getoverrun 326 PTR sys_timer_delete 327 PTR compat_sys_clock_settime /* 6225 */ 328 PTR compat_sys_clock_gettime 329 PTR compat_sys_clock_getres 330 PTR compat_sys_clock_nanosleep 331 PTR sys_tgkill 332 PTR compat_sys_utimes /* 6230 */ 333 PTR compat_sys_mbind 334 PTR compat_sys_get_mempolicy 335 PTR compat_sys_set_mempolicy 336 PTR compat_sys_mq_open 337 PTR sys_mq_unlink /* 6235 */ 338 PTR compat_sys_mq_timedsend 339 PTR compat_sys_mq_timedreceive 340 PTR compat_sys_mq_notify 341 PTR compat_sys_mq_getsetattr 342 PTR sys_ni_syscall /* 6240, sys_vserver */ 343 PTR compat_sys_waitid 344 PTR sys_ni_syscall /* available, was setaltroot */ 345 PTR sys_add_key 346 PTR sys_request_key 347 PTR sys_keyctl /* 6245 */ 348 PTR sys_set_thread_area 349 PTR sys_inotify_init 350 PTR sys_inotify_add_watch 351 PTR sys_inotify_rm_watch 352 PTR compat_sys_migrate_pages /* 6250 */ 353 PTR sys_openat 354 PTR sys_mkdirat 355 PTR sys_mknodat 356 PTR sys_fchownat 357 PTR compat_sys_futimesat /* 6255 */ 358 PTR sys_newfstatat 359 PTR sys_unlinkat 360 PTR sys_renameat 361 PTR sys_linkat 362 PTR sys_symlinkat /* 6260 */ 363 PTR sys_readlinkat 364 PTR sys_fchmodat 365 PTR sys_faccessat 366 PTR compat_sys_pselect6 367 PTR compat_sys_ppoll /* 6265 */ 368 PTR sys_unshare 369 PTR sys_splice 370 PTR sys_sync_file_range 371 PTR sys_tee 372 PTR compat_sys_vmsplice /* 6270 */ 373 PTR compat_sys_move_pages 374 PTR compat_sys_set_robust_list 375 PTR compat_sys_get_robust_list 376 PTR compat_sys_kexec_load 377 PTR sys_getcpu /* 6275 */ 378 PTR compat_sys_epoll_pwait 379 PTR sys_ioprio_set 380 PTR sys_ioprio_get 381 PTR compat_sys_utimensat 382 PTR compat_sys_signalfd /* 6280 */ 383 PTR sys_ni_syscall /* was timerfd */ 384 PTR sys_eventfd 385 PTR sys_fallocate 386 PTR sys_timerfd_create 387 PTR compat_sys_timerfd_gettime /* 6285 */ 388 PTR compat_sys_timerfd_settime 389 PTR compat_sys_signalfd4 390 PTR sys_eventfd2 391 PTR sys_epoll_create1 392 PTR sys_dup3 /* 6290 */ 393 PTR sys_pipe2 394 PTR sys_inotify_init1 395 PTR compat_sys_preadv 396 PTR compat_sys_pwritev 397 PTR compat_sys_rt_tgsigqueueinfo /* 6295 */ 398 PTR sys_perf_event_open 399 PTR sys_accept4 400 PTR compat_sys_recvmmsg 401 PTR sys_getdents64 402 PTR sys_fanotify_init /* 6300 */ 403 PTR sys_fanotify_mark 404 PTR sys_prlimit64 405 PTR sys_name_to_handle_at 406 PTR sys_open_by_handle_at 407 PTR compat_sys_clock_adjtime /* 6305 */ 408 PTR sys_syncfs 409 PTR compat_sys_sendmmsg 410 PTR sys_setns 411 PTR compat_sys_process_vm_readv 412 PTR compat_sys_process_vm_writev /* 6310 */ 413 PTR sys_kcmp 414 PTR sys_finit_module 415 PTR sys_sched_setattr 416 PTR sys_sched_getattr 417 PTR sys_renameat2 /* 6315 */ 418 PTR sys_seccomp 419 PTR sys_getrandom 420 PTR sys_memfd_create 421 PTR sys_bpf 422 PTR compat_sys_execveat /* 6320 */ 423 PTR sys_userfaultfd 424 PTR sys_membarrier 425 PTR sys_mlock2 426 .size sysn32_call_table,.-sysn32_call_table 427