| | 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 |
| | 26 | NESTED(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 | |
| | 55 | jalr t2 # Do The Real Thing (TM) |
| | 56 | |
| | 57 | li t0, -EMAXERRNO - 1 # error? |
| | 58 | sltu t0, t0, v0 |
| | 59 | sd t0, PT_R7(sp) # set error flag |
| | 60 | beqz t0, 1f |
| | 61 | |
| | 62 | ld t1, PT_R2(sp) # syscall number |
| | 63 | dnegu v0 # error |
| | 64 | sd t1, PT_R0(sp) # save it for syscall restarting |
| | 65 | 1: sd v0, PT_R2(sp) # result |
| | 66 | |
| | 67 | j syscall_exit_partial |
| | 68 | |
| | 69 | /* ------------------------------------------------------------------------ */ |
| | 70 | |
| | 71 | n32_syscall_trace_entry: |
| | 72 | SAVE_STATIC |
| | 73 | move s0, t2 |
| | 74 | move a0, sp |
| | 75 | move a1, v0 |
| | 76 | jal syscall_trace_enter |
| | 77 | |
| | 78 | bltz v0, 2f # seccomp failed? Skip syscall |
| | 79 | |
| | 80 | move t0, s0 |
| | 81 | RESTORE_STATIC |
| | 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 | jalr t0 |
| | 89 | |
| | 90 | li t0, -EMAXERRNO - 1 # error? |
| | 91 | sltu t0, t0, v0 |
| | 92 | sd t0, PT_R7(sp) # set error flag |
| | 93 | beqz t0, 1f |
| | 94 | |
| | 95 | ld t1, PT_R2(sp) # syscall number |
| | 96 | dnegu v0 # error |
| | 97 | sd t1, PT_R0(sp) # save it for syscall restarting |
| | 98 | 1: sd v0, PT_R2(sp) # result |
| | 99 | |
| | 100 | 2: j syscall_exit |
| | 101 | |
| | 102 | not_n32_scall: |
| | 103 | /* This is not an n32 compatibility syscall, pass it on to |
| | 104 | the n64 syscall handlers. */ |
| | 105 | j handle_sys64 |
| | 106 | |
| | 107 | END(handle_sysn32) |
| | 108 | |
| | 109 | .type sysn32_call_table, @object |
| | 110 | EXPORT(sysn32_call_table) |
| | 111 | PTR sys_read /* 6000 */ |
| | 112 | PTR sys_write |
| | 113 | PTR sys_open |
| | 114 | PTR sys_close |
| | 115 | PTR sys_newstat |
| | 116 | PTR sys_newfstat /* 6005 */ |
| | 117 | PTR sys_newlstat |
| | 118 | PTR sys_poll |
| | 119 | PTR sys_lseek |
| | 120 | PTR sys_mips_mmap |
| | 121 | PTR sys_mprotect /* 6010 */ |
| | 122 | PTR sys_munmap |
| | 123 | PTR sys_brk |
| | 124 | PTR compat_sys_rt_sigaction |
| | 125 | PTR compat_sys_rt_sigprocmask |
| | 126 | PTR compat_sys_ioctl /* 6015 */ |
| | 127 | PTR sys_pread64 |
| | 128 | PTR sys_pwrite64 |
| | 129 | PTR compat_sys_readv |
| | 130 | PTR compat_sys_writev |
| | 131 | PTR sys_access /* 6020 */ |
| | 132 | PTR sysm_pipe |
| | 133 | PTR compat_sys_select |
| | 134 | PTR sys_sched_yield |
| | 135 | PTR sys_mremap |
| | 136 | PTR sys_msync /* 6025 */ |
| | 137 | PTR sys_mincore |
| | 138 | PTR sys_madvise |
| | 139 | PTR sys_shmget |
| | 140 | PTR sys_shmat |
| | 141 | PTR compat_sys_shmctl /* 6030 */ |
| | 142 | PTR sys_dup |
| | 143 | PTR sys_dup2 |
| | 144 | PTR sys_pause |
| | 145 | PTR compat_sys_nanosleep |
| | 146 | PTR compat_sys_getitimer /* 6035 */ |
| | 147 | PTR compat_sys_setitimer |
| | 148 | PTR sys_alarm |
| | 149 | PTR sys_getpid |
| | 150 | PTR compat_sys_sendfile |
| | 151 | PTR sys_socket /* 6040 */ |
| | 152 | PTR sys_connect |
| | 153 | PTR sys_accept |
| | 154 | PTR sys_sendto |
| | 155 | PTR compat_sys_recvfrom |
| | 156 | PTR compat_sys_sendmsg /* 6045 */ |
| | 157 | PTR compat_sys_recvmsg |
| | 158 | PTR sys_shutdown |
| | 159 | PTR sys_bind |
| | 160 | PTR sys_listen |
| | 161 | PTR sys_getsockname /* 6050 */ |
| | 162 | PTR sys_getpeername |
| | 163 | PTR sys_socketpair |
| | 164 | PTR compat_sys_setsockopt |
| | 165 | PTR compat_sys_getsockopt |
| | 166 | PTR __sys_clone /* 6055 */ |
| | 167 | PTR __sys_fork |
| | 168 | PTR compat_sys_execve |
| | 169 | PTR sys_exit |
| | 170 | PTR compat_sys_wait4 |
| | 171 | PTR sys_kill /* 6060 */ |
| | 172 | PTR sys_newuname |
| | 173 | PTR sys_semget |
| | 174 | PTR sys_semop |
| | 175 | PTR compat_sys_semctl |
| | 176 | PTR sys_shmdt /* 6065 */ |
| | 177 | PTR sys_msgget |
| | 178 | PTR compat_sys_msgsnd |
| | 179 | PTR compat_sys_msgrcv |
| | 180 | PTR compat_sys_msgctl |
| | 181 | PTR compat_sys_fcntl /* 6070 */ |
| | 182 | PTR sys_flock |
| | 183 | PTR sys_fsync |
| | 184 | PTR sys_fdatasync |
| | 185 | PTR sys_truncate |
| | 186 | PTR sys_ftruncate /* 6075 */ |
| | 187 | PTR compat_sys_getdents |
| | 188 | PTR sys_getcwd |
| | 189 | PTR sys_chdir |
| | 190 | PTR sys_fchdir |
| | 191 | PTR sys_rename /* 6080 */ |
| | 192 | PTR sys_mkdir |
| | 193 | PTR sys_rmdir |
| | 194 | PTR sys_creat |
| | 195 | PTR sys_link |
| | 196 | PTR sys_unlink /* 6085 */ |
| | 197 | PTR sys_symlink |
| | 198 | PTR sys_readlink |
| | 199 | PTR sys_chmod |
| | 200 | PTR sys_fchmod |
| | 201 | PTR sys_chown /* 6090 */ |
| | 202 | PTR sys_fchown |
| | 203 | PTR sys_lchown |
| | 204 | PTR sys_umask |
| | 205 | PTR compat_sys_gettimeofday |
| | 206 | PTR compat_sys_getrlimit /* 6095 */ |
| | 207 | PTR compat_sys_getrusage |
| | 208 | PTR compat_sys_sysinfo |
| | 209 | PTR compat_sys_times |
| | 210 | PTR compat_sys_ptrace |
| | 211 | PTR sys_getuid /* 6100 */ |
| | 212 | PTR sys_syslog |
| | 213 | PTR sys_getgid |
| | 214 | PTR sys_setuid |
| | 215 | PTR sys_setgid |
| | 216 | PTR sys_geteuid /* 6105 */ |
| | 217 | PTR sys_getegid |
| | 218 | PTR sys_setpgid |
| | 219 | PTR sys_getppid |
| | 220 | PTR sys_getpgrp |
| | 221 | PTR sys_setsid /* 6110 */ |
| | 222 | PTR sys_setreuid |
| | 223 | PTR sys_setregid |
| | 224 | PTR sys_getgroups |
| | 225 | PTR sys_setgroups |
| | 226 | PTR sys_setresuid /* 6115 */ |
| | 227 | PTR sys_getresuid |
| | 228 | PTR sys_setresgid |
| | 229 | PTR sys_getresgid |
| | 230 | PTR sys_getpgid |
| | 231 | PTR sys_setfsuid /* 6120 */ |
| | 232 | PTR sys_setfsgid |
| | 233 | PTR sys_getsid |
| | 234 | PTR sys_capget |
| | 235 | PTR sys_capset |
| | 236 | PTR compat_sys_rt_sigpending /* 6125 */ |
| | 237 | PTR compat_sys_rt_sigtimedwait |
| | 238 | PTR compat_sys_rt_sigqueueinfo |
| | 239 | PTR compat_sys_rt_sigsuspend |
| | 240 | PTR compat_sys_sigaltstack |
| | 241 | PTR compat_sys_utime /* 6130 */ |
| | 242 | PTR sys_mknod |
| | 243 | PTR sys_32_personality |
| | 244 | PTR compat_sys_ustat |
| | 245 | PTR compat_sys_statfs |
| | 246 | PTR compat_sys_fstatfs /* 6135 */ |
| | 247 | PTR sys_sysfs |
| | 248 | PTR sys_getpriority |
| | 249 | PTR sys_setpriority |
| | 250 | PTR sys_sched_setparam |
| | 251 | PTR sys_sched_getparam /* 6140 */ |
| | 252 | PTR sys_sched_setscheduler |
| | 253 | PTR sys_sched_getscheduler |
| | 254 | PTR sys_sched_get_priority_max |
| | 255 | PTR sys_sched_get_priority_min |
| | 256 | PTR compat_sys_sched_rr_get_interval /* 6145 */ |
| | 257 | PTR sys_mlock |
| | 258 | PTR sys_munlock |
| | 259 | PTR sys_mlockall |
| | 260 | PTR sys_munlockall |
| | 261 | PTR sys_vhangup /* 6150 */ |
| | 262 | PTR sys_pivot_root |
| | 263 | PTR compat_sys_sysctl |
| | 264 | PTR sys_prctl |
| | 265 | PTR compat_sys_adjtimex |
| | 266 | PTR compat_sys_setrlimit /* 6155 */ |
| | 267 | PTR sys_chroot |
| | 268 | PTR sys_sync |
| | 269 | PTR sys_acct |
| | 270 | PTR compat_sys_settimeofday |
| | 271 | PTR compat_sys_mount /* 6160 */ |
| | 272 | PTR sys_umount |
| | 273 | PTR sys_swapon |
| | 274 | PTR sys_swapoff |
| | 275 | PTR sys_reboot |
| | 276 | PTR sys_sethostname /* 6165 */ |
| | 277 | PTR sys_setdomainname |
| | 278 | PTR sys_ni_syscall /* was create_module */ |
| | 279 | PTR sys_init_module |
| | 280 | PTR sys_delete_module |
| | 281 | PTR sys_ni_syscall /* 6170, was get_kernel_syms */ |
| | 282 | PTR sys_ni_syscall /* was query_module */ |
| | 283 | PTR sys_quotactl |
| | 284 | PTR sys_ni_syscall /* was nfsservctl */ |
| | 285 | PTR sys_ni_syscall /* res. for getpmsg */ |
| | 286 | PTR sys_ni_syscall /* 6175 for putpmsg */ |
| | 287 | PTR sys_ni_syscall /* res. for afs_syscall */ |
| | 288 | PTR sys_ni_syscall /* res. for security */ |
| | 289 | PTR sys_gettid |
| | 290 | PTR sys_readahead |
| | 291 | PTR sys_setxattr /* 6180 */ |
| | 292 | PTR sys_lsetxattr |
| | 293 | PTR sys_fsetxattr |
| | 294 | PTR sys_getxattr |
| | 295 | PTR sys_lgetxattr |
| | 296 | PTR sys_fgetxattr /* 6185 */ |
| | 297 | PTR sys_listxattr |
| | 298 | PTR sys_llistxattr |
| | 299 | PTR sys_flistxattr |
| | 300 | PTR sys_removexattr |
| | 301 | PTR sys_lremovexattr /* 6190 */ |
| | 302 | PTR sys_fremovexattr |
| | 303 | PTR sys_tkill |
| | 304 | PTR sys_ni_syscall |
| | 305 | PTR compat_sys_futex |
| | 306 | PTR compat_sys_sched_setaffinity /* 6195 */ |
| | 307 | PTR compat_sys_sched_getaffinity |
| | 308 | PTR sys_cacheflush |
| | 309 | PTR sys_cachectl |
| | 310 | PTR sys_sysmips |
| | 311 | PTR compat_sys_io_setup /* 6200 */ |
| | 312 | PTR sys_io_destroy |
| | 313 | PTR compat_sys_io_getevents |
| | 314 | PTR compat_sys_io_submit |
| | 315 | PTR sys_io_cancel |
| | 316 | PTR sys_exit_group /* 6205 */ |
| | 317 | PTR sys_lookup_dcookie |
| | 318 | PTR sys_epoll_create |
| | 319 | PTR sys_epoll_ctl |
| | 320 | PTR sys_epoll_wait |
| | 321 | PTR sys_remap_file_pages /* 6210 */ |
| | 322 | PTR sysn32_rt_sigreturn |
| | 323 | PTR compat_sys_fcntl64 |
| | 324 | PTR sys_set_tid_address |
| | 325 | PTR sys_restart_syscall |
| | 326 | PTR compat_sys_semtimedop /* 6215 */ |
| | 327 | PTR sys_fadvise64_64 |
| | 328 | PTR compat_sys_statfs64 |
| | 329 | PTR compat_sys_fstatfs64 |
| | 330 | PTR sys_sendfile64 |
| | 331 | PTR compat_sys_timer_create /* 6220 */ |
| | 332 | PTR compat_sys_timer_settime |
| | 333 | PTR compat_sys_timer_gettime |
| | 334 | PTR sys_timer_getoverrun |
| | 335 | PTR sys_timer_delete |
| | 336 | PTR compat_sys_clock_settime /* 6225 */ |
| | 337 | PTR compat_sys_clock_gettime |
| | 338 | PTR compat_sys_clock_getres |
| | 339 | PTR compat_sys_clock_nanosleep |
| | 340 | PTR sys_tgkill |
| | 341 | PTR compat_sys_utimes /* 6230 */ |
| | 342 | PTR compat_sys_mbind |
| | 343 | PTR compat_sys_get_mempolicy |
| | 344 | PTR compat_sys_set_mempolicy |
| | 345 | PTR compat_sys_mq_open |
| | 346 | PTR sys_mq_unlink /* 6235 */ |
| | 347 | PTR compat_sys_mq_timedsend |
| | 348 | PTR compat_sys_mq_timedreceive |
| | 349 | PTR compat_sys_mq_notify |
| | 350 | PTR compat_sys_mq_getsetattr |
| | 351 | PTR sys_ni_syscall /* 6240, sys_vserver */ |
| | 352 | PTR compat_sys_waitid |
| | 353 | PTR sys_ni_syscall /* available, was setaltroot */ |
| | 354 | PTR sys_add_key |
| | 355 | PTR sys_request_key |
| | 356 | PTR sys_keyctl /* 6245 */ |
| | 357 | PTR sys_set_thread_area |
| | 358 | PTR sys_inotify_init |
| | 359 | PTR sys_inotify_add_watch |
| | 360 | PTR sys_inotify_rm_watch |
| | 361 | PTR compat_sys_migrate_pages /* 6250 */ |
| | 362 | PTR sys_openat |
| | 363 | PTR sys_mkdirat |
| | 364 | PTR sys_mknodat |
| | 365 | PTR sys_fchownat |
| | 366 | PTR compat_sys_futimesat /* 6255 */ |
| | 367 | PTR sys_newfstatat |
| | 368 | PTR sys_unlinkat |
| | 369 | PTR sys_renameat |
| | 370 | PTR sys_linkat |
| | 371 | PTR sys_symlinkat /* 6260 */ |
| | 372 | PTR sys_readlinkat |
| | 373 | PTR sys_fchmodat |
| | 374 | PTR sys_faccessat |
| | 375 | PTR compat_sys_pselect6 |
| | 376 | PTR compat_sys_ppoll /* 6265 */ |
| | 377 | PTR sys_unshare |
| | 378 | PTR sys_splice |
| | 379 | PTR sys_sync_file_range |
| | 380 | PTR sys_tee |
| | 381 | PTR compat_sys_vmsplice /* 6270 */ |
| | 382 | PTR compat_sys_move_pages |
| | 383 | PTR compat_sys_set_robust_list |
| | 384 | PTR compat_sys_get_robust_list |
| | 385 | PTR compat_sys_kexec_load |
| | 386 | PTR sys_getcpu /* 6275 */ |
| | 387 | PTR compat_sys_epoll_pwait |
| | 388 | PTR sys_ioprio_set |
| | 389 | PTR sys_ioprio_get |
| | 390 | PTR compat_sys_utimensat |
| | 391 | PTR compat_sys_signalfd /* 6280 */ |
| | 392 | PTR sys_ni_syscall /* was timerfd */ |
| | 393 | PTR sys_eventfd |
| | 394 | PTR sys_fallocate |
| | 395 | PTR sys_timerfd_create |
| | 396 | PTR compat_sys_timerfd_gettime /* 6285 */ |
| | 397 | PTR compat_sys_timerfd_settime |
| | 398 | PTR compat_sys_signalfd4 |
| | 399 | PTR sys_eventfd2 |
| | 400 | PTR sys_epoll_create1 |
| | 401 | PTR sys_dup3 /* 6290 */ |
| | 402 | PTR sys_pipe2 |
| | 403 | PTR sys_inotify_init1 |
| | 404 | PTR compat_sys_preadv |
| | 405 | PTR compat_sys_pwritev |
| | 406 | PTR compat_sys_rt_tgsigqueueinfo /* 6295 */ |
| | 407 | PTR sys_perf_event_open |
| | 408 | PTR sys_accept4 |
| | 409 | PTR compat_sys_recvmmsg |
| | 410 | PTR sys_getdents64 |
| | 411 | PTR sys_fanotify_init /* 6300 */ |
| | 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 compat_sys_clock_adjtime /* 6305 */ |
| | 417 | PTR sys_syncfs |
| | 418 | PTR compat_sys_sendmmsg |
| | 419 | PTR sys_setns |
| | 420 | PTR compat_sys_process_vm_readv |
| | 421 | PTR compat_sys_process_vm_writev /* 6310 */ |
| | 422 | PTR sys_kcmp |
| | 423 | PTR sys_finit_module |
| | 424 | PTR sys_sched_setattr |
| | 425 | PTR sys_sched_getattr |
| | 426 | PTR sys_renameat2 /* 6315 */ |
| | 427 | PTR sys_seccomp |
| | 428 | PTR sys_getrandom |
| | 429 | PTR sys_memfd_create |
| | 430 | PTR sys_bpf |
| | 431 | PTR compat_sys_execveat /* 6320 */ |
| | 432 | .size sysn32_call_table,.-sysn32_call_table |
projects / linux-2.6-block.git / blame_incremental