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 jal syscall_trace_enter 76 77 move t0, s0 78 RESTORE_STATIC 79 ld a0, PT_R4(sp) # Restore argument registers 80 ld a1, PT_R5(sp) 81 ld a2, PT_R6(sp) 82 ld a3, PT_R7(sp) 83 ld a4, PT_R8(sp) 84 ld a5, PT_R9(sp) 85 jalr t0 86 87 li t0, -EMAXERRNO - 1 # error? 88 sltu t0, t0, v0 89 sd t0, PT_R7(sp) # set error flag 90 beqz t0, 1f 91 92 ld t1, PT_R2(sp) # syscall number 93 dnegu v0 # error 94 sd t1, PT_R0(sp) # save it for syscall restarting 951: sd v0, PT_R2(sp) # result 96 97 j syscall_exit 98 99not_n32_scall: 100 /* This is not an n32 compatibility syscall, pass it on to 101 the n64 syscall handlers. */ 102 j handle_sys64 103 104 END(handle_sysn32) 105 106 .type sysn32_call_table, @object 107EXPORT(sysn32_call_table) 108 PTR sys_read /* 6000 */ 109 PTR sys_write 110 PTR sys_open 111 PTR sys_close 112 PTR sys_newstat 113 PTR sys_newfstat /* 6005 */ 114 PTR sys_newlstat 115 PTR sys_poll 116 PTR sys_lseek 117 PTR sys_mips_mmap 118 PTR sys_mprotect /* 6010 */ 119 PTR sys_munmap 120 PTR sys_brk 121 PTR compat_sys_rt_sigaction 122 PTR compat_sys_rt_sigprocmask 123 PTR compat_sys_ioctl /* 6015 */ 124 PTR sys_pread64 125 PTR sys_pwrite64 126 PTR compat_sys_readv 127 PTR compat_sys_writev 128 PTR sys_access /* 6020 */ 129 PTR sysm_pipe 130 PTR compat_sys_select 131 PTR sys_sched_yield 132 PTR sys_mremap 133 PTR sys_msync /* 6025 */ 134 PTR sys_mincore 135 PTR sys_madvise 136 PTR sys_shmget 137 PTR sys_shmat 138 PTR compat_sys_shmctl /* 6030 */ 139 PTR sys_dup 140 PTR sys_dup2 141 PTR sys_pause 142 PTR compat_sys_nanosleep 143 PTR compat_sys_getitimer /* 6035 */ 144 PTR compat_sys_setitimer 145 PTR sys_alarm 146 PTR sys_getpid 147 PTR compat_sys_sendfile 148 PTR sys_socket /* 6040 */ 149 PTR sys_connect 150 PTR sys_accept 151 PTR sys_sendto 152 PTR compat_sys_recvfrom 153 PTR compat_sys_sendmsg /* 6045 */ 154 PTR compat_sys_recvmsg 155 PTR sys_shutdown 156 PTR sys_bind 157 PTR sys_listen 158 PTR sys_getsockname /* 6050 */ 159 PTR sys_getpeername 160 PTR sys_socketpair 161 PTR compat_sys_setsockopt 162 PTR sys_getsockopt 163 PTR __sys_clone /* 6055 */ 164 PTR __sys_fork 165 PTR compat_sys_execve 166 PTR sys_exit 167 PTR compat_sys_wait4 168 PTR sys_kill /* 6060 */ 169 PTR sys_newuname 170 PTR sys_semget 171 PTR sys_semop 172 PTR compat_sys_semctl 173 PTR sys_shmdt /* 6065 */ 174 PTR sys_msgget 175 PTR compat_sys_msgsnd 176 PTR compat_sys_msgrcv 177 PTR compat_sys_msgctl 178 PTR compat_sys_fcntl /* 6070 */ 179 PTR sys_flock 180 PTR sys_fsync 181 PTR sys_fdatasync 182 PTR sys_truncate 183 PTR sys_ftruncate /* 6075 */ 184 PTR compat_sys_getdents 185 PTR sys_getcwd 186 PTR sys_chdir 187 PTR sys_fchdir 188 PTR sys_rename /* 6080 */ 189 PTR sys_mkdir 190 PTR sys_rmdir 191 PTR sys_creat 192 PTR sys_link 193 PTR sys_unlink /* 6085 */ 194 PTR sys_symlink 195 PTR sys_readlink 196 PTR sys_chmod 197 PTR sys_fchmod 198 PTR sys_chown /* 6090 */ 199 PTR sys_fchown 200 PTR sys_lchown 201 PTR sys_umask 202 PTR compat_sys_gettimeofday 203 PTR compat_sys_getrlimit /* 6095 */ 204 PTR compat_sys_getrusage 205 PTR compat_sys_sysinfo 206 PTR compat_sys_times 207 PTR compat_sys_ptrace 208 PTR sys_getuid /* 6100 */ 209 PTR sys_syslog 210 PTR sys_getgid 211 PTR sys_setuid 212 PTR sys_setgid 213 PTR sys_geteuid /* 6105 */ 214 PTR sys_getegid 215 PTR sys_setpgid 216 PTR sys_getppid 217 PTR sys_getpgrp 218 PTR sys_setsid /* 6110 */ 219 PTR sys_setreuid 220 PTR sys_setregid 221 PTR sys_getgroups 222 PTR sys_setgroups 223 PTR sys_setresuid /* 6115 */ 224 PTR sys_getresuid 225 PTR sys_setresgid 226 PTR sys_getresgid 227 PTR sys_getpgid 228 PTR sys_setfsuid /* 6120 */ 229 PTR sys_setfsgid 230 PTR sys_getsid 231 PTR sys_capget 232 PTR sys_capset 233 PTR compat_sys_rt_sigpending /* 6125 */ 234 PTR compat_sys_rt_sigtimedwait 235 PTR compat_sys_rt_sigqueueinfo 236 PTR compat_sys_rt_sigsuspend 237 PTR compat_sys_sigaltstack 238 PTR compat_sys_utime /* 6130 */ 239 PTR sys_mknod 240 PTR sys_32_personality 241 PTR compat_sys_ustat 242 PTR compat_sys_statfs 243 PTR compat_sys_fstatfs /* 6135 */ 244 PTR sys_sysfs 245 PTR sys_getpriority 246 PTR sys_setpriority 247 PTR sys_sched_setparam 248 PTR sys_sched_getparam /* 6140 */ 249 PTR sys_sched_setscheduler 250 PTR sys_sched_getscheduler 251 PTR sys_sched_get_priority_max 252 PTR sys_sched_get_priority_min 253 PTR compat_sys_sched_rr_get_interval /* 6145 */ 254 PTR sys_mlock 255 PTR sys_munlock 256 PTR sys_mlockall 257 PTR sys_munlockall 258 PTR sys_vhangup /* 6150 */ 259 PTR sys_pivot_root 260 PTR compat_sys_sysctl 261 PTR sys_prctl 262 PTR compat_sys_adjtimex 263 PTR compat_sys_setrlimit /* 6155 */ 264 PTR sys_chroot 265 PTR sys_sync 266 PTR sys_acct 267 PTR compat_sys_settimeofday 268 PTR compat_sys_mount /* 6160 */ 269 PTR sys_umount 270 PTR sys_swapon 271 PTR sys_swapoff 272 PTR sys_reboot 273 PTR sys_sethostname /* 6165 */ 274 PTR sys_setdomainname 275 PTR sys_ni_syscall /* was create_module */ 276 PTR sys_init_module 277 PTR sys_delete_module 278 PTR sys_ni_syscall /* 6170, was get_kernel_syms */ 279 PTR sys_ni_syscall /* was query_module */ 280 PTR sys_quotactl 281 PTR sys_ni_syscall /* was nfsservctl */ 282 PTR sys_ni_syscall /* res. for getpmsg */ 283 PTR sys_ni_syscall /* 6175 for putpmsg */ 284 PTR sys_ni_syscall /* res. for afs_syscall */ 285 PTR sys_ni_syscall /* res. for security */ 286 PTR sys_gettid 287 PTR sys_readahead 288 PTR sys_setxattr /* 6180 */ 289 PTR sys_lsetxattr 290 PTR sys_fsetxattr 291 PTR sys_getxattr 292 PTR sys_lgetxattr 293 PTR sys_fgetxattr /* 6185 */ 294 PTR sys_listxattr 295 PTR sys_llistxattr 296 PTR sys_flistxattr 297 PTR sys_removexattr 298 PTR sys_lremovexattr /* 6190 */ 299 PTR sys_fremovexattr 300 PTR sys_tkill 301 PTR sys_ni_syscall 302 PTR compat_sys_futex 303 PTR compat_sys_sched_setaffinity /* 6195 */ 304 PTR compat_sys_sched_getaffinity 305 PTR sys_cacheflush 306 PTR sys_cachectl 307 PTR sys_sysmips 308 PTR compat_sys_io_setup /* 6200 */ 309 PTR sys_io_destroy 310 PTR compat_sys_io_getevents 311 PTR compat_sys_io_submit 312 PTR sys_io_cancel 313 PTR sys_exit_group /* 6205 */ 314 PTR sys_lookup_dcookie 315 PTR sys_epoll_create 316 PTR sys_epoll_ctl 317 PTR sys_epoll_wait 318 PTR sys_remap_file_pages /* 6210 */ 319 PTR sysn32_rt_sigreturn 320 PTR compat_sys_fcntl64 321 PTR sys_set_tid_address 322 PTR sys_restart_syscall 323 PTR compat_sys_semtimedop /* 6215 */ 324 PTR sys_fadvise64_64 325 PTR compat_sys_statfs64 326 PTR compat_sys_fstatfs64 327 PTR sys_sendfile64 328 PTR compat_sys_timer_create /* 6220 */ 329 PTR compat_sys_timer_settime 330 PTR compat_sys_timer_gettime 331 PTR sys_timer_getoverrun 332 PTR sys_timer_delete 333 PTR compat_sys_clock_settime /* 6225 */ 334 PTR compat_sys_clock_gettime 335 PTR compat_sys_clock_getres 336 PTR compat_sys_clock_nanosleep 337 PTR sys_tgkill 338 PTR compat_sys_utimes /* 6230 */ 339 PTR sys_ni_syscall /* sys_mbind */ 340 PTR sys_ni_syscall /* sys_get_mempolicy */ 341 PTR sys_ni_syscall /* sys_set_mempolicy */ 342 PTR compat_sys_mq_open 343 PTR sys_mq_unlink /* 6235 */ 344 PTR compat_sys_mq_timedsend 345 PTR compat_sys_mq_timedreceive 346 PTR compat_sys_mq_notify 347 PTR compat_sys_mq_getsetattr 348 PTR sys_ni_syscall /* 6240, sys_vserver */ 349 PTR compat_sys_waitid 350 PTR sys_ni_syscall /* available, was setaltroot */ 351 PTR sys_add_key 352 PTR sys_request_key 353 PTR sys_keyctl /* 6245 */ 354 PTR sys_set_thread_area 355 PTR sys_inotify_init 356 PTR sys_inotify_add_watch 357 PTR sys_inotify_rm_watch 358 PTR sys_migrate_pages /* 6250 */ 359 PTR sys_openat 360 PTR sys_mkdirat 361 PTR sys_mknodat 362 PTR sys_fchownat 363 PTR compat_sys_futimesat /* 6255 */ 364 PTR sys_newfstatat 365 PTR sys_unlinkat 366 PTR sys_renameat 367 PTR sys_linkat 368 PTR sys_symlinkat /* 6260 */ 369 PTR sys_readlinkat 370 PTR sys_fchmodat 371 PTR sys_faccessat 372 PTR compat_sys_pselect6 373 PTR compat_sys_ppoll /* 6265 */ 374 PTR sys_unshare 375 PTR sys_splice 376 PTR sys_sync_file_range 377 PTR sys_tee 378 PTR compat_sys_vmsplice /* 6270 */ 379 PTR sys_move_pages 380 PTR compat_sys_set_robust_list 381 PTR compat_sys_get_robust_list 382 PTR compat_sys_kexec_load 383 PTR sys_getcpu /* 6275 */ 384 PTR compat_sys_epoll_pwait 385 PTR sys_ioprio_set 386 PTR sys_ioprio_get 387 PTR compat_sys_utimensat 388 PTR compat_sys_signalfd /* 6280 */ 389 PTR sys_ni_syscall /* was timerfd */ 390 PTR sys_eventfd 391 PTR sys_fallocate 392 PTR sys_timerfd_create 393 PTR compat_sys_timerfd_gettime /* 6285 */ 394 PTR compat_sys_timerfd_settime 395 PTR compat_sys_signalfd4 396 PTR sys_eventfd2 397 PTR sys_epoll_create1 398 PTR sys_dup3 /* 6290 */ 399 PTR sys_pipe2 400 PTR sys_inotify_init1 401 PTR compat_sys_preadv 402 PTR compat_sys_pwritev 403 PTR compat_sys_rt_tgsigqueueinfo /* 6295 */ 404 PTR sys_perf_event_open 405 PTR sys_accept4 406 PTR compat_sys_recvmmsg 407 PTR sys_getdents64 408 PTR sys_fanotify_init /* 6300 */ 409 PTR sys_fanotify_mark 410 PTR sys_prlimit64 411 PTR sys_name_to_handle_at 412 PTR sys_open_by_handle_at 413 PTR compat_sys_clock_adjtime /* 6305 */ 414 PTR sys_syncfs 415 PTR compat_sys_sendmmsg 416 PTR sys_setns 417 PTR compat_sys_process_vm_readv 418 PTR compat_sys_process_vm_writev /* 6310 */ 419 PTR sys_kcmp 420 PTR sys_finit_module 421 .size sysn32_call_table,.-sysn32_call_table 422