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 sd a3, PT_R26(sp) # save a3 for syscall restarting 46 47 li t1, _TIF_WORK_SYSCALL_ENTRY 48 LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? 49 and t0, t1, t0 50 bnez t0, n32_syscall_trace_entry 51 52syscall_common: 53 dsll t0, v0, 3 # offset into table 54 ld t2, (sysn32_call_table - (__NR_N32_Linux * 8))(t0) 55 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 a0, sp 75 move a1, v0 76 jal syscall_trace_enter 77 78 bltz v0, 1f # seccomp failed? Skip syscall 79 80 RESTORE_STATIC 81 ld v0, PT_R2(sp) # Restore syscall (maybe modified) 82 ld a0, PT_R4(sp) # Restore argument registers 83 ld a1, PT_R5(sp) 84 ld a2, PT_R6(sp) 85 ld a3, PT_R7(sp) 86 ld a4, PT_R8(sp) 87 ld a5, PT_R9(sp) 88 89 dsubu t2, v0, __NR_N32_Linux # check (new) syscall number 90 sltiu t0, t2, __NR_N32_Linux_syscalls + 1 91 beqz t0, not_n32_scall 92 93 j syscall_common 94 951: j syscall_exit 96 97not_n32_scall: 98 /* This is not an n32 compatibility syscall, pass it on to 99 the n64 syscall handlers. */ 100 j handle_sys64 101 102 END(handle_sysn32) 103 104 .type sysn32_call_table, @object 105EXPORT(sysn32_call_table) 106 PTR sys_read /* 6000 */ 107 PTR sys_write 108 PTR sys_open 109 PTR sys_close 110 PTR sys_newstat 111 PTR sys_newfstat /* 6005 */ 112 PTR sys_newlstat 113 PTR sys_poll 114 PTR sys_lseek 115 PTR sys_mips_mmap 116 PTR sys_mprotect /* 6010 */ 117 PTR sys_munmap 118 PTR sys_brk 119 PTR compat_sys_rt_sigaction 120 PTR compat_sys_rt_sigprocmask 121 PTR compat_sys_ioctl /* 6015 */ 122 PTR sys_pread64 123 PTR sys_pwrite64 124 PTR compat_sys_readv 125 PTR compat_sys_writev 126 PTR sys_access /* 6020 */ 127 PTR sysm_pipe 128 PTR compat_sys_select 129 PTR sys_sched_yield 130 PTR sys_mremap 131 PTR sys_msync /* 6025 */ 132 PTR sys_mincore 133 PTR sys_madvise 134 PTR sys_shmget 135 PTR sys_shmat 136 PTR compat_sys_shmctl /* 6030 */ 137 PTR sys_dup 138 PTR sys_dup2 139 PTR sys_pause 140 PTR compat_sys_nanosleep 141 PTR compat_sys_getitimer /* 6035 */ 142 PTR compat_sys_setitimer 143 PTR sys_alarm 144 PTR sys_getpid 145 PTR compat_sys_sendfile 146 PTR sys_socket /* 6040 */ 147 PTR sys_connect 148 PTR sys_accept 149 PTR sys_sendto 150 PTR compat_sys_recvfrom 151 PTR compat_sys_sendmsg /* 6045 */ 152 PTR compat_sys_recvmsg 153 PTR sys_shutdown 154 PTR sys_bind 155 PTR sys_listen 156 PTR sys_getsockname /* 6050 */ 157 PTR sys_getpeername 158 PTR sys_socketpair 159 PTR compat_sys_setsockopt 160 PTR compat_sys_getsockopt 161 PTR __sys_clone /* 6055 */ 162 PTR __sys_fork 163 PTR compat_sys_execve 164 PTR sys_exit 165 PTR compat_sys_wait4 166 PTR sys_kill /* 6060 */ 167 PTR sys_newuname 168 PTR sys_semget 169 PTR sys_semop 170 PTR compat_sys_semctl 171 PTR sys_shmdt /* 6065 */ 172 PTR sys_msgget 173 PTR compat_sys_msgsnd 174 PTR compat_sys_msgrcv 175 PTR compat_sys_msgctl 176 PTR compat_sys_fcntl /* 6070 */ 177 PTR sys_flock 178 PTR sys_fsync 179 PTR sys_fdatasync 180 PTR sys_truncate 181 PTR sys_ftruncate /* 6075 */ 182 PTR compat_sys_getdents 183 PTR sys_getcwd 184 PTR sys_chdir 185 PTR sys_fchdir 186 PTR sys_rename /* 6080 */ 187 PTR sys_mkdir 188 PTR sys_rmdir 189 PTR sys_creat 190 PTR sys_link 191 PTR sys_unlink /* 6085 */ 192 PTR sys_symlink 193 PTR sys_readlink 194 PTR sys_chmod 195 PTR sys_fchmod 196 PTR sys_chown /* 6090 */ 197 PTR sys_fchown 198 PTR sys_lchown 199 PTR sys_umask 200 PTR compat_sys_gettimeofday 201 PTR compat_sys_getrlimit /* 6095 */ 202 PTR compat_sys_getrusage 203 PTR compat_sys_sysinfo 204 PTR compat_sys_times 205 PTR compat_sys_ptrace 206 PTR sys_getuid /* 6100 */ 207 PTR sys_syslog 208 PTR sys_getgid 209 PTR sys_setuid 210 PTR sys_setgid 211 PTR sys_geteuid /* 6105 */ 212 PTR sys_getegid 213 PTR sys_setpgid 214 PTR sys_getppid 215 PTR sys_getpgrp 216 PTR sys_setsid /* 6110 */ 217 PTR sys_setreuid 218 PTR sys_setregid 219 PTR sys_getgroups 220 PTR sys_setgroups 221 PTR sys_setresuid /* 6115 */ 222 PTR sys_getresuid 223 PTR sys_setresgid 224 PTR sys_getresgid 225 PTR sys_getpgid 226 PTR sys_setfsuid /* 6120 */ 227 PTR sys_setfsgid 228 PTR sys_getsid 229 PTR sys_capget 230 PTR sys_capset 231 PTR compat_sys_rt_sigpending /* 6125 */ 232 PTR compat_sys_rt_sigtimedwait 233 PTR compat_sys_rt_sigqueueinfo 234 PTR compat_sys_rt_sigsuspend 235 PTR compat_sys_sigaltstack 236 PTR compat_sys_utime /* 6130 */ 237 PTR sys_mknod 238 PTR sys_32_personality 239 PTR compat_sys_ustat 240 PTR compat_sys_statfs 241 PTR compat_sys_fstatfs /* 6135 */ 242 PTR sys_sysfs 243 PTR sys_getpriority 244 PTR sys_setpriority 245 PTR sys_sched_setparam 246 PTR sys_sched_getparam /* 6140 */ 247 PTR sys_sched_setscheduler 248 PTR sys_sched_getscheduler 249 PTR sys_sched_get_priority_max 250 PTR sys_sched_get_priority_min 251 PTR compat_sys_sched_rr_get_interval /* 6145 */ 252 PTR sys_mlock 253 PTR sys_munlock 254 PTR sys_mlockall 255 PTR sys_munlockall 256 PTR sys_vhangup /* 6150 */ 257 PTR sys_pivot_root 258 PTR compat_sys_sysctl 259 PTR sys_prctl 260 PTR compat_sys_adjtimex 261 PTR compat_sys_setrlimit /* 6155 */ 262 PTR sys_chroot 263 PTR sys_sync 264 PTR sys_acct 265 PTR compat_sys_settimeofday 266 PTR compat_sys_mount /* 6160 */ 267 PTR sys_umount 268 PTR sys_swapon 269 PTR sys_swapoff 270 PTR sys_reboot 271 PTR sys_sethostname /* 6165 */ 272 PTR sys_setdomainname 273 PTR sys_ni_syscall /* was create_module */ 274 PTR sys_init_module 275 PTR sys_delete_module 276 PTR sys_ni_syscall /* 6170, was get_kernel_syms */ 277 PTR sys_ni_syscall /* was query_module */ 278 PTR sys_quotactl 279 PTR sys_ni_syscall /* was nfsservctl */ 280 PTR sys_ni_syscall /* res. for getpmsg */ 281 PTR sys_ni_syscall /* 6175 for putpmsg */ 282 PTR sys_ni_syscall /* res. for afs_syscall */ 283 PTR sys_ni_syscall /* res. for security */ 284 PTR sys_gettid 285 PTR sys_readahead 286 PTR sys_setxattr /* 6180 */ 287 PTR sys_lsetxattr 288 PTR sys_fsetxattr 289 PTR sys_getxattr 290 PTR sys_lgetxattr 291 PTR sys_fgetxattr /* 6185 */ 292 PTR sys_listxattr 293 PTR sys_llistxattr 294 PTR sys_flistxattr 295 PTR sys_removexattr 296 PTR sys_lremovexattr /* 6190 */ 297 PTR sys_fremovexattr 298 PTR sys_tkill 299 PTR sys_ni_syscall 300 PTR compat_sys_futex 301 PTR compat_sys_sched_setaffinity /* 6195 */ 302 PTR compat_sys_sched_getaffinity 303 PTR sys_cacheflush 304 PTR sys_cachectl 305 PTR sys_sysmips 306 PTR compat_sys_io_setup /* 6200 */ 307 PTR sys_io_destroy 308 PTR compat_sys_io_getevents 309 PTR compat_sys_io_submit 310 PTR sys_io_cancel 311 PTR sys_exit_group /* 6205 */ 312 PTR sys_lookup_dcookie 313 PTR sys_epoll_create 314 PTR sys_epoll_ctl 315 PTR sys_epoll_wait 316 PTR sys_remap_file_pages /* 6210 */ 317 PTR sysn32_rt_sigreturn 318 PTR compat_sys_fcntl64 319 PTR sys_set_tid_address 320 PTR sys_restart_syscall 321 PTR compat_sys_semtimedop /* 6215 */ 322 PTR sys_fadvise64_64 323 PTR compat_sys_statfs64 324 PTR compat_sys_fstatfs64 325 PTR sys_sendfile64 326 PTR compat_sys_timer_create /* 6220 */ 327 PTR compat_sys_timer_settime 328 PTR compat_sys_timer_gettime 329 PTR sys_timer_getoverrun 330 PTR sys_timer_delete 331 PTR compat_sys_clock_settime /* 6225 */ 332 PTR compat_sys_clock_gettime 333 PTR compat_sys_clock_getres 334 PTR compat_sys_clock_nanosleep 335 PTR sys_tgkill 336 PTR compat_sys_utimes /* 6230 */ 337 PTR compat_sys_mbind 338 PTR compat_sys_get_mempolicy 339 PTR compat_sys_set_mempolicy 340 PTR compat_sys_mq_open 341 PTR sys_mq_unlink /* 6235 */ 342 PTR compat_sys_mq_timedsend 343 PTR compat_sys_mq_timedreceive 344 PTR compat_sys_mq_notify 345 PTR compat_sys_mq_getsetattr 346 PTR sys_ni_syscall /* 6240, sys_vserver */ 347 PTR compat_sys_waitid 348 PTR sys_ni_syscall /* available, was setaltroot */ 349 PTR sys_add_key 350 PTR sys_request_key 351 PTR sys_keyctl /* 6245 */ 352 PTR sys_set_thread_area 353 PTR sys_inotify_init 354 PTR sys_inotify_add_watch 355 PTR sys_inotify_rm_watch 356 PTR compat_sys_migrate_pages /* 6250 */ 357 PTR sys_openat 358 PTR sys_mkdirat 359 PTR sys_mknodat 360 PTR sys_fchownat 361 PTR compat_sys_futimesat /* 6255 */ 362 PTR sys_newfstatat 363 PTR sys_unlinkat 364 PTR sys_renameat 365 PTR sys_linkat 366 PTR sys_symlinkat /* 6260 */ 367 PTR sys_readlinkat 368 PTR sys_fchmodat 369 PTR sys_faccessat 370 PTR compat_sys_pselect6 371 PTR compat_sys_ppoll /* 6265 */ 372 PTR sys_unshare 373 PTR sys_splice 374 PTR sys_sync_file_range 375 PTR sys_tee 376 PTR compat_sys_vmsplice /* 6270 */ 377 PTR compat_sys_move_pages 378 PTR compat_sys_set_robust_list 379 PTR compat_sys_get_robust_list 380 PTR compat_sys_kexec_load 381 PTR sys_getcpu /* 6275 */ 382 PTR compat_sys_epoll_pwait 383 PTR sys_ioprio_set 384 PTR sys_ioprio_get 385 PTR compat_sys_utimensat 386 PTR compat_sys_signalfd /* 6280 */ 387 PTR sys_ni_syscall /* was timerfd */ 388 PTR sys_eventfd 389 PTR sys_fallocate 390 PTR sys_timerfd_create 391 PTR compat_sys_timerfd_gettime /* 6285 */ 392 PTR compat_sys_timerfd_settime 393 PTR compat_sys_signalfd4 394 PTR sys_eventfd2 395 PTR sys_epoll_create1 396 PTR sys_dup3 /* 6290 */ 397 PTR sys_pipe2 398 PTR sys_inotify_init1 399 PTR compat_sys_preadv 400 PTR compat_sys_pwritev 401 PTR compat_sys_rt_tgsigqueueinfo /* 6295 */ 402 PTR sys_perf_event_open 403 PTR sys_accept4 404 PTR compat_sys_recvmmsg 405 PTR sys_getdents64 406 PTR sys_fanotify_init /* 6300 */ 407 PTR sys_fanotify_mark 408 PTR sys_prlimit64 409 PTR sys_name_to_handle_at 410 PTR sys_open_by_handle_at 411 PTR compat_sys_clock_adjtime /* 6305 */ 412 PTR sys_syncfs 413 PTR compat_sys_sendmmsg 414 PTR sys_setns 415 PTR compat_sys_process_vm_readv 416 PTR compat_sys_process_vm_writev /* 6310 */ 417 PTR sys_kcmp 418 PTR sys_finit_module 419 PTR sys_sched_setattr 420 PTR sys_sched_getattr 421 PTR sys_renameat2 /* 6315 */ 422 PTR sys_seccomp 423 PTR sys_getrandom 424 PTR sys_memfd_create 425 PTR sys_bpf 426 PTR compat_sys_execveat /* 6320 */ 427 PTR sys_userfaultfd 428 PTR sys_membarrier 429 PTR sys_mlock2 430 PTR sys_copy_file_range 431 PTR compat_sys_preadv2 /* 6325 */ 432 PTR compat_sys_pwritev2 433 .size sysn32_call_table,.-sysn32_call_table 434