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/* This duplicates the definition from <linux/sched.h> */ 21#define PT_TRACESYS 0x00000002 /* tracing system calls */ 22 23/* This duplicates the definition from <asm/signal.h> */ 24#define SIGILL 4 /* Illegal instruction (ANSI). */ 25 26#ifndef CONFIG_MIPS32_O32 27/* No O32, so define handle_sys here */ 28#define handle_sysn32 handle_sys 29#endif 30 31 .align 5 32NESTED(handle_sysn32, PT_SIZE, sp) 33#ifndef CONFIG_MIPS32_O32 34 .set noat 35 SAVE_SOME 36 TRACE_IRQS_ON_RELOAD 37 STI 38 .set at 39#endif 40 41 dsubu t0, v0, __NR_N32_Linux # check syscall number 42 sltiu t0, t0, __NR_N32_Linux_syscalls + 1 43 44#ifndef CONFIG_MIPS32_O32 45 ld t1, PT_EPC(sp) # skip syscall on return 46 daddiu t1, 4 # skip to next instruction 47 sd t1, PT_EPC(sp) 48#endif 49 beqz t0, not_n32_scall 50 51 dsll t0, v0, 3 # offset into table 52 ld t2, (sysn32_call_table - (__NR_N32_Linux * 8))(t0) 53 54 sd a3, PT_R26(sp) # save a3 for syscall restarting 55 56 li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT 57 LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? 58 and t0, t1, t0 59 bnez t0, n32_syscall_trace_entry 60 61 jalr t2 # Do The Real Thing (TM) 62 63 li t0, -EMAXERRNO - 1 # error? 64 sltu t0, t0, v0 65 sd t0, PT_R7(sp) # set error flag 66 beqz t0, 1f 67 68 ld t1, PT_R2(sp) # syscall number 69 dnegu v0 # error 70 sd t1, PT_R0(sp) # save it for syscall restarting 711: sd v0, PT_R2(sp) # result 72 73 j syscall_exit_partial 74 75/* ------------------------------------------------------------------------ */ 76 77n32_syscall_trace_entry: 78 SAVE_STATIC 79 move s0, t2 80 move a0, sp 81 jal syscall_trace_enter 82 83 move t0, s0 84 RESTORE_STATIC 85 ld a0, PT_R4(sp) # Restore argument registers 86 ld a1, PT_R5(sp) 87 ld a2, PT_R6(sp) 88 ld a3, PT_R7(sp) 89 ld a4, PT_R8(sp) 90 ld a5, PT_R9(sp) 91 jalr t0 92 93 li t0, -EMAXERRNO - 1 # error? 94 sltu t0, t0, v0 95 sd t0, PT_R7(sp) # set error flag 96 beqz t0, 1f 97 98 ld t1, PT_R2(sp) # syscall number 99 dnegu v0 # error 100 sd t1, PT_R0(sp) # save it for syscall restarting 1011: sd v0, PT_R2(sp) # result 102 103 j syscall_exit 104 105not_n32_scall: 106 /* This is not an n32 compatibility syscall, pass it on to 107 the n64 syscall handlers. */ 108 j handle_sys64 109 110 END(handle_sysn32) 111 112EXPORT(sysn32_call_table) 113 PTR sys_read /* 6000 */ 114 PTR sys_write 115 PTR sys_open 116 PTR sys_close 117 PTR sys_newstat 118 PTR sys_newfstat /* 6005 */ 119 PTR sys_newlstat 120 PTR sys_poll 121 PTR sys_lseek 122 PTR sys_mips_mmap 123 PTR sys_mprotect /* 6010 */ 124 PTR sys_munmap 125 PTR sys_brk 126 PTR sys_32_rt_sigaction 127 PTR sys_32_rt_sigprocmask 128 PTR compat_sys_ioctl /* 6015 */ 129 PTR sys_pread64 130 PTR sys_pwrite64 131 PTR compat_sys_readv 132 PTR compat_sys_writev 133 PTR sys_access /* 6020 */ 134 PTR sysm_pipe 135 PTR compat_sys_select 136 PTR sys_sched_yield 137 PTR sys_mremap 138 PTR sys_msync /* 6025 */ 139 PTR sys_mincore 140 PTR sys_madvise 141 PTR sys_shmget 142 PTR sys_shmat 143 PTR compat_sys_shmctl /* 6030 */ 144 PTR sys_dup 145 PTR sys_dup2 146 PTR sys_pause 147 PTR compat_sys_nanosleep 148 PTR compat_sys_getitimer /* 6035 */ 149 PTR compat_sys_setitimer 150 PTR sys_alarm 151 PTR sys_getpid 152 PTR sys_32_sendfile 153 PTR sys_socket /* 6040 */ 154 PTR sys_connect 155 PTR sys_accept 156 PTR sys_sendto 157 PTR compat_sys_recvfrom 158 PTR compat_sys_sendmsg /* 6045 */ 159 PTR compat_sys_recvmsg 160 PTR sys_shutdown 161 PTR sys_bind 162 PTR sys_listen 163 PTR sys_getsockname /* 6050 */ 164 PTR sys_getpeername 165 PTR sys_socketpair 166 PTR compat_sys_setsockopt 167 PTR sys_getsockopt 168 PTR sys_clone /* 6055 */ 169 PTR sys_fork 170 PTR sys32_execve 171 PTR sys_exit 172 PTR compat_sys_wait4 173 PTR sys_kill /* 6060 */ 174 PTR sys_newuname 175 PTR sys_semget 176 PTR sys_semop 177 PTR sys_n32_semctl 178 PTR sys_shmdt /* 6065 */ 179 PTR sys_msgget 180 PTR sys_n32_msgsnd 181 PTR sys_n32_msgrcv 182 PTR compat_sys_msgctl 183 PTR compat_sys_fcntl /* 6070 */ 184 PTR sys_flock 185 PTR sys_fsync 186 PTR sys_fdatasync 187 PTR sys_truncate 188 PTR sys_ftruncate /* 6075 */ 189 PTR compat_sys_getdents 190 PTR sys_getcwd 191 PTR sys_chdir 192 PTR sys_fchdir 193 PTR sys_rename /* 6080 */ 194 PTR sys_mkdir 195 PTR sys_rmdir 196 PTR sys_creat 197 PTR sys_link 198 PTR sys_unlink /* 6085 */ 199 PTR sys_symlink 200 PTR sys_readlink 201 PTR sys_chmod 202 PTR sys_fchmod 203 PTR sys_chown /* 6090 */ 204 PTR sys_fchown 205 PTR sys_lchown 206 PTR sys_umask 207 PTR compat_sys_gettimeofday 208 PTR compat_sys_getrlimit /* 6095 */ 209 PTR compat_sys_getrusage 210 PTR compat_sys_sysinfo 211 PTR compat_sys_times 212 PTR compat_sys_ptrace 213 PTR sys_getuid /* 6100 */ 214 PTR sys_syslog 215 PTR sys_getgid 216 PTR sys_setuid 217 PTR sys_setgid 218 PTR sys_geteuid /* 6105 */ 219 PTR sys_getegid 220 PTR sys_setpgid 221 PTR sys_getppid 222 PTR sys_getpgrp 223 PTR sys_setsid /* 6110 */ 224 PTR sys_setreuid 225 PTR sys_setregid 226 PTR sys_getgroups 227 PTR sys_setgroups 228 PTR sys_setresuid /* 6115 */ 229 PTR sys_getresuid 230 PTR sys_setresgid 231 PTR sys_getresgid 232 PTR sys_getpgid 233 PTR sys_setfsuid /* 6120 */ 234 PTR sys_setfsgid 235 PTR sys_getsid 236 PTR sys_capget 237 PTR sys_capset 238 PTR sys_32_rt_sigpending /* 6125 */ 239 PTR compat_sys_rt_sigtimedwait 240 PTR sys_32_rt_sigqueueinfo 241 PTR sysn32_rt_sigsuspend 242 PTR sys32_sigaltstack 243 PTR compat_sys_utime /* 6130 */ 244 PTR sys_mknod 245 PTR sys_32_personality 246 PTR compat_sys_ustat 247 PTR compat_sys_statfs 248 PTR compat_sys_fstatfs /* 6135 */ 249 PTR sys_sysfs 250 PTR sys_getpriority 251 PTR sys_setpriority 252 PTR sys_sched_setparam 253 PTR sys_sched_getparam /* 6140 */ 254 PTR sys_sched_setscheduler 255 PTR sys_sched_getscheduler 256 PTR sys_sched_get_priority_max 257 PTR sys_sched_get_priority_min 258 PTR sys_32_sched_rr_get_interval /* 6145 */ 259 PTR sys_mlock 260 PTR sys_munlock 261 PTR sys_mlockall 262 PTR sys_munlockall 263 PTR sys_vhangup /* 6150 */ 264 PTR sys_pivot_root 265 PTR compat_sys_sysctl 266 PTR sys_prctl 267 PTR compat_sys_adjtimex 268 PTR compat_sys_setrlimit /* 6155 */ 269 PTR sys_chroot 270 PTR sys_sync 271 PTR sys_acct 272 PTR compat_sys_settimeofday 273 PTR compat_sys_mount /* 6160 */ 274 PTR sys_umount 275 PTR sys_swapon 276 PTR sys_swapoff 277 PTR sys_reboot 278 PTR sys_sethostname /* 6165 */ 279 PTR sys_setdomainname 280 PTR sys_ni_syscall /* was create_module */ 281 PTR sys_init_module 282 PTR sys_delete_module 283 PTR sys_ni_syscall /* 6170, was get_kernel_syms */ 284 PTR sys_ni_syscall /* was query_module */ 285 PTR sys_quotactl 286 PTR sys_ni_syscall /* was nfsservctl */ 287 PTR sys_ni_syscall /* res. for getpmsg */ 288 PTR sys_ni_syscall /* 6175 for putpmsg */ 289 PTR sys_ni_syscall /* res. for afs_syscall */ 290 PTR sys_ni_syscall /* res. for security */ 291 PTR sys_gettid 292 PTR sys_readahead 293 PTR sys_setxattr /* 6180 */ 294 PTR sys_lsetxattr 295 PTR sys_fsetxattr 296 PTR sys_getxattr 297 PTR sys_lgetxattr 298 PTR sys_fgetxattr /* 6185 */ 299 PTR sys_listxattr 300 PTR sys_llistxattr 301 PTR sys_flistxattr 302 PTR sys_removexattr 303 PTR sys_lremovexattr /* 6190 */ 304 PTR sys_fremovexattr 305 PTR sys_tkill 306 PTR sys_ni_syscall 307 PTR sys_32_futex 308 PTR compat_sys_sched_setaffinity /* 6195 */ 309 PTR compat_sys_sched_getaffinity 310 PTR sys_cacheflush 311 PTR sys_cachectl 312 PTR sys_sysmips 313 PTR compat_sys_io_setup /* 6200 */ 314 PTR sys_io_destroy 315 PTR compat_sys_io_getevents 316 PTR compat_sys_io_submit 317 PTR sys_io_cancel 318 PTR sys_exit_group /* 6205 */ 319 PTR sys_lookup_dcookie 320 PTR sys_epoll_create 321 PTR sys_epoll_ctl 322 PTR sys_epoll_wait 323 PTR sys_remap_file_pages /* 6210 */ 324 PTR sysn32_rt_sigreturn 325 PTR compat_sys_fcntl64 326 PTR sys_set_tid_address 327 PTR sys_restart_syscall 328 PTR compat_sys_semtimedop /* 6215 */ 329 PTR sys_fadvise64_64 330 PTR compat_sys_statfs64 331 PTR compat_sys_fstatfs64 332 PTR sys_sendfile64 333 PTR compat_sys_timer_create /* 6220 */ 334 PTR compat_sys_timer_settime 335 PTR compat_sys_timer_gettime 336 PTR sys_timer_getoverrun 337 PTR sys_timer_delete 338 PTR compat_sys_clock_settime /* 6225 */ 339 PTR compat_sys_clock_gettime 340 PTR compat_sys_clock_getres 341 PTR compat_sys_clock_nanosleep 342 PTR sys_tgkill 343 PTR compat_sys_utimes /* 6230 */ 344 PTR sys_ni_syscall /* sys_mbind */ 345 PTR sys_ni_syscall /* sys_get_mempolicy */ 346 PTR sys_ni_syscall /* sys_set_mempolicy */ 347 PTR compat_sys_mq_open 348 PTR sys_mq_unlink /* 6235 */ 349 PTR compat_sys_mq_timedsend 350 PTR compat_sys_mq_timedreceive 351 PTR compat_sys_mq_notify 352 PTR compat_sys_mq_getsetattr 353 PTR sys_ni_syscall /* 6240, sys_vserver */ 354 PTR compat_sys_waitid 355 PTR sys_ni_syscall /* available, was setaltroot */ 356 PTR sys_add_key 357 PTR sys_request_key 358 PTR sys_keyctl /* 6245 */ 359 PTR sys_set_thread_area 360 PTR sys_inotify_init 361 PTR sys_inotify_add_watch 362 PTR sys_inotify_rm_watch 363 PTR sys_migrate_pages /* 6250 */ 364 PTR sys_openat 365 PTR sys_mkdirat 366 PTR sys_mknodat 367 PTR sys_fchownat 368 PTR compat_sys_futimesat /* 6255 */ 369 PTR sys_newfstatat 370 PTR sys_unlinkat 371 PTR sys_renameat 372 PTR sys_linkat 373 PTR sys_symlinkat /* 6260 */ 374 PTR sys_readlinkat 375 PTR sys_fchmodat 376 PTR sys_faccessat 377 PTR compat_sys_pselect6 378 PTR compat_sys_ppoll /* 6265 */ 379 PTR sys_unshare 380 PTR sys_splice 381 PTR sys_sync_file_range 382 PTR sys_tee 383 PTR compat_sys_vmsplice /* 6270 */ 384 PTR sys_move_pages 385 PTR compat_sys_set_robust_list 386 PTR compat_sys_get_robust_list 387 PTR compat_sys_kexec_load 388 PTR sys_getcpu /* 6275 */ 389 PTR compat_sys_epoll_pwait 390 PTR sys_ioprio_set 391 PTR sys_ioprio_get 392 PTR compat_sys_utimensat 393 PTR compat_sys_signalfd /* 6280 */ 394 PTR sys_ni_syscall /* was timerfd */ 395 PTR sys_eventfd 396 PTR sys_fallocate 397 PTR sys_timerfd_create 398 PTR compat_sys_timerfd_gettime /* 6285 */ 399 PTR compat_sys_timerfd_settime 400 PTR sys_signalfd4 401 PTR sys_eventfd2 402 PTR sys_epoll_create1 403 PTR sys_dup3 /* 6290 */ 404 PTR sys_pipe2 405 PTR sys_inotify_init1 406 PTR sys_preadv 407 PTR sys_pwritev 408 PTR compat_sys_rt_tgsigqueueinfo /* 6295 */ 409 PTR sys_perf_event_open 410 PTR sys_accept4 411 PTR compat_sys_recvmmsg 412 PTR sys_getdents64 413 PTR sys_fanotify_init /* 6300 */ 414 PTR sys_fanotify_mark 415 PTR sys_prlimit64 416 PTR sys_name_to_handle_at 417 PTR sys_open_by_handle_at 418 PTR compat_sys_clock_adjtime /* 6305 */ 419 PTR sys_syncfs 420 PTR compat_sys_sendmmsg 421 PTR sys_setns 422 PTR compat_sys_process_vm_readv 423 PTR compat_sys_process_vm_writev /* 6310 */ 424 PTR sys_kcmp 425 .size sysn32_call_table,.-sysn32_call_table 426