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 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 651: sd v0, PT_R2(sp) # result 66 67 j syscall_exit_partial 68 69/* ------------------------------------------------------------------------ */ 70 71n32_syscall_trace_entry: 72 SAVE_STATIC 73 move s0, t2 74 move a0, sp 75 daddiu a1, v0, __NR_N32_Linux 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 981: sd v0, PT_R2(sp) # result 99 1002: j syscall_exit 101 102not_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 110EXPORT(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 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 sys_ni_syscall /* sys_mbind */ 343 PTR sys_ni_syscall /* sys_get_mempolicy */ 344 PTR sys_ni_syscall /* 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 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 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 .size sysn32_call_table,.-sysn32_call_table 427