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 dnegu v0 # error 69 sd v0, PT_R0(sp) # set flag for syscall restarting 701: sd v0, PT_R2(sp) # result 71 72 local_irq_disable # make sure need_resched and 73 # signals dont change between 74 # sampling and return 75 LONG_L a2, TI_FLAGS($28) # current->work 76 li t0, _TIF_ALLWORK_MASK 77 and t0, a2, t0 78 bnez t0, n32_syscall_exit_work 79 80 j restore_partial 81 82n32_syscall_exit_work: 83 j syscall_exit_work_partial 84 85/* ------------------------------------------------------------------------ */ 86 87n32_syscall_trace_entry: 88 SAVE_STATIC 89 move s0, t2 90 move a0, sp 91 li a1, 0 92 jal do_syscall_trace 93 94 move t0, s0 95 RESTORE_STATIC 96 ld a0, PT_R4(sp) # Restore argument registers 97 ld a1, PT_R5(sp) 98 ld a2, PT_R6(sp) 99 ld a3, PT_R7(sp) 100 ld a4, PT_R8(sp) 101 ld a5, PT_R9(sp) 102 jalr t0 103 104 li t0, -EMAXERRNO - 1 # error? 105 sltu t0, t0, v0 106 sd t0, PT_R7(sp) # set error flag 107 beqz t0, 1f 108 109 dnegu v0 # error 110 sd v0, PT_R0(sp) # set flag for syscall restarting 1111: sd v0, PT_R2(sp) # result 112 113 j syscall_exit 114 115not_n32_scall: 116 /* This is not an n32 compatibility syscall, pass it on to 117 the n64 syscall handlers. */ 118 j handle_sys64 119 120 END(handle_sysn32) 121 122EXPORT(sysn32_call_table) 123 PTR sys_read /* 6000 */ 124 PTR sys_write 125 PTR sys_open 126 PTR sys_close 127 PTR sys_newstat 128 PTR sys_newfstat /* 6005 */ 129 PTR sys_newlstat 130 PTR sys_poll 131 PTR sys_lseek 132 PTR old_mmap 133 PTR sys_mprotect /* 6010 */ 134 PTR sys_munmap 135 PTR sys_brk 136 PTR sys32_rt_sigaction 137 PTR sys32_rt_sigprocmask 138 PTR compat_sys_ioctl /* 6015 */ 139 PTR sys_pread64 140 PTR sys_pwrite64 141 PTR compat_sys_readv 142 PTR compat_sys_writev 143 PTR sys_access /* 6020 */ 144 PTR sys_pipe 145 PTR compat_sys_select 146 PTR sys_sched_yield 147 PTR sys_mremap 148 PTR sys_msync /* 6025 */ 149 PTR sys_mincore 150 PTR sys_madvise 151 PTR sys_shmget 152 PTR sys_shmat 153 PTR compat_sys_shmctl /* 6030 */ 154 PTR sys_dup 155 PTR sys_dup2 156 PTR sys_pause 157 PTR compat_sys_nanosleep 158 PTR compat_sys_getitimer /* 6035 */ 159 PTR compat_sys_setitimer 160 PTR sys_alarm 161 PTR sys_getpid 162 PTR sys32_sendfile 163 PTR sys_socket /* 6040 */ 164 PTR sys_connect 165 PTR sys_accept 166 PTR sys_sendto 167 PTR sys_recvfrom 168 PTR compat_sys_sendmsg /* 6045 */ 169 PTR compat_sys_recvmsg 170 PTR sys_shutdown 171 PTR sys_bind 172 PTR sys_listen 173 PTR sys_getsockname /* 6050 */ 174 PTR sys_getpeername 175 PTR sys_socketpair 176 PTR compat_sys_setsockopt 177 PTR sys_getsockopt 178 PTR sys_clone /* 6055 */ 179 PTR sys_fork 180 PTR sys32_execve 181 PTR sys_exit 182 PTR compat_sys_wait4 183 PTR sys_kill /* 6060 */ 184 PTR sys32_newuname 185 PTR sys_semget 186 PTR sys_semop 187 PTR sysn32_semctl 188 PTR sys_shmdt /* 6065 */ 189 PTR sys_msgget 190 PTR sysn32_msgsnd 191 PTR sysn32_msgrcv 192 PTR compat_sys_msgctl 193 PTR compat_sys_fcntl /* 6070 */ 194 PTR sys_flock 195 PTR sys_fsync 196 PTR sys_fdatasync 197 PTR sys_truncate 198 PTR sys_ftruncate /* 6075 */ 199 PTR compat_sys_getdents 200 PTR sys_getcwd 201 PTR sys_chdir 202 PTR sys_fchdir 203 PTR sys_rename /* 6080 */ 204 PTR sys_mkdir 205 PTR sys_rmdir 206 PTR sys_creat 207 PTR sys_link 208 PTR sys_unlink /* 6085 */ 209 PTR sys_symlink 210 PTR sys_readlink 211 PTR sys_chmod 212 PTR sys_fchmod 213 PTR sys_chown /* 6090 */ 214 PTR sys_fchown 215 PTR sys_lchown 216 PTR sys_umask 217 PTR sys32_gettimeofday 218 PTR compat_sys_getrlimit /* 6095 */ 219 PTR compat_sys_getrusage 220 PTR compat_sys_sysinfo 221 PTR compat_sys_times 222 PTR sys32_ptrace 223 PTR sys_getuid /* 6100 */ 224 PTR sys_syslog 225 PTR sys_getgid 226 PTR sys_setuid 227 PTR sys_setgid 228 PTR sys_geteuid /* 6105 */ 229 PTR sys_getegid 230 PTR sys_setpgid 231 PTR sys_getppid 232 PTR sys_getpgrp 233 PTR sys_setsid /* 6110 */ 234 PTR sys_setreuid 235 PTR sys_setregid 236 PTR sys_getgroups 237 PTR sys_setgroups 238 PTR sys_setresuid /* 6115 */ 239 PTR sys_getresuid 240 PTR sys_setresgid 241 PTR sys_getresgid 242 PTR sys_getpgid 243 PTR sys_setfsuid /* 6120 */ 244 PTR sys_setfsgid 245 PTR sys_getsid 246 PTR sys_capget 247 PTR sys_capset 248 PTR sys32_rt_sigpending /* 6125 */ 249 PTR compat_sys_rt_sigtimedwait 250 PTR sys32_rt_sigqueueinfo 251 PTR sysn32_rt_sigsuspend 252 PTR sys32_sigaltstack 253 PTR compat_sys_utime /* 6130 */ 254 PTR sys_mknod 255 PTR sys32_personality 256 PTR sys32_ustat 257 PTR compat_sys_statfs 258 PTR compat_sys_fstatfs /* 6135 */ 259 PTR sys_sysfs 260 PTR sys_getpriority 261 PTR sys_setpriority 262 PTR sys_sched_setparam 263 PTR sys_sched_getparam /* 6140 */ 264 PTR sys_sched_setscheduler 265 PTR sys_sched_getscheduler 266 PTR sys_sched_get_priority_max 267 PTR sys_sched_get_priority_min 268 PTR sys32_sched_rr_get_interval /* 6145 */ 269 PTR sys_mlock 270 PTR sys_munlock 271 PTR sys_mlockall 272 PTR sys_munlockall 273 PTR sys_vhangup /* 6150 */ 274 PTR sys_pivot_root 275 PTR sys32_sysctl 276 PTR sys_prctl 277 PTR compat_sys_adjtimex 278 PTR compat_sys_setrlimit /* 6155 */ 279 PTR sys_chroot 280 PTR sys_sync 281 PTR sys_acct 282 PTR sys32_settimeofday 283 PTR compat_sys_mount /* 6160 */ 284 PTR sys_umount 285 PTR sys_swapon 286 PTR sys_swapoff 287 PTR sys_reboot 288 PTR sys_sethostname /* 6165 */ 289 PTR sys_setdomainname 290 PTR sys_ni_syscall /* was create_module */ 291 PTR sys_init_module 292 PTR sys_delete_module 293 PTR sys_ni_syscall /* 6170, was get_kernel_syms */ 294 PTR sys_ni_syscall /* was query_module */ 295 PTR sys_quotactl 296 PTR sys_nfsservctl 297 PTR sys_ni_syscall /* res. for getpmsg */ 298 PTR sys_ni_syscall /* 6175 for putpmsg */ 299 PTR sys_ni_syscall /* res. for afs_syscall */ 300 PTR sys_ni_syscall /* res. for security */ 301 PTR sys_gettid 302 PTR sys_readahead 303 PTR sys_setxattr /* 6180 */ 304 PTR sys_lsetxattr 305 PTR sys_fsetxattr 306 PTR sys_getxattr 307 PTR sys_lgetxattr 308 PTR sys_fgetxattr /* 6185 */ 309 PTR sys_listxattr 310 PTR sys_llistxattr 311 PTR sys_flistxattr 312 PTR sys_removexattr 313 PTR sys_lremovexattr /* 6190 */ 314 PTR sys_fremovexattr 315 PTR sys_tkill 316 PTR sys_ni_syscall 317 PTR compat_sys_futex 318 PTR compat_sys_sched_setaffinity /* 6195 */ 319 PTR compat_sys_sched_getaffinity 320 PTR sys_cacheflush 321 PTR sys_cachectl 322 PTR sys_sysmips 323 PTR sys_io_setup /* 6200 */ 324 PTR sys_io_destroy 325 PTR sys_io_getevents 326 PTR sys_io_submit 327 PTR sys_io_cancel 328 PTR sys_exit_group /* 6205 */ 329 PTR sys_lookup_dcookie 330 PTR sys_epoll_create 331 PTR sys_epoll_ctl 332 PTR sys_epoll_wait 333 PTR sys_remap_file_pages /* 6210 */ 334 PTR sysn32_rt_sigreturn 335 PTR compat_sys_fcntl64 336 PTR sys_set_tid_address 337 PTR sys_restart_syscall 338 PTR compat_sys_semtimedop /* 6215 */ 339 PTR sys_fadvise64_64 340 PTR compat_sys_statfs64 341 PTR compat_sys_fstatfs64 342 PTR sys_sendfile64 343 PTR compat_sys_timer_create /* 6220 */ 344 PTR compat_sys_timer_settime 345 PTR compat_sys_timer_gettime 346 PTR sys_timer_getoverrun 347 PTR sys_timer_delete 348 PTR compat_sys_clock_settime /* 6225 */ 349 PTR compat_sys_clock_gettime 350 PTR compat_sys_clock_getres 351 PTR compat_sys_clock_nanosleep 352 PTR sys_tgkill 353 PTR compat_sys_utimes /* 6230 */ 354 PTR sys_ni_syscall /* sys_mbind */ 355 PTR sys_ni_syscall /* sys_get_mempolicy */ 356 PTR sys_ni_syscall /* sys_set_mempolicy */ 357 PTR compat_sys_mq_open 358 PTR sys_mq_unlink /* 6235 */ 359 PTR compat_sys_mq_timedsend 360 PTR compat_sys_mq_timedreceive 361 PTR compat_sys_mq_notify 362 PTR compat_sys_mq_getsetattr 363 PTR sys_ni_syscall /* 6240, sys_vserver */ 364 PTR compat_sys_waitid 365 PTR sys_ni_syscall /* available, was setaltroot */ 366 PTR sys_add_key 367 PTR sys_request_key 368 PTR sys_keyctl /* 6245 */ 369 PTR sys_set_thread_area 370 PTR sys_inotify_init 371 PTR sys_inotify_add_watch 372 PTR sys_inotify_rm_watch 373 PTR sys_migrate_pages /* 6250 */ 374 PTR sys_openat 375 PTR sys_mkdirat 376 PTR sys_mknodat 377 PTR sys_fchownat 378 PTR sys_futimesat /* 6255 */ 379 PTR sys_newfstatat 380 PTR sys_unlinkat 381 PTR sys_renameat 382 PTR sys_linkat 383 PTR sys_symlinkat /* 6260 */ 384 PTR sys_readlinkat 385 PTR sys_fchmodat 386 PTR sys_faccessat 387 PTR compat_sys_pselect6 388 PTR sys_ppoll /* 6265 */ 389 PTR sys_unshare 390 PTR sys_splice 391 PTR sys_sync_file_range 392 PTR sys_tee 393 PTR sys_vmsplice /* 6270 */ 394 PTR sys_move_pages 395 PTR compat_sys_set_robust_list 396 PTR compat_sys_get_robust_list 397 PTR compat_sys_kexec_load 398 PTR sys_getcpu /* 6275 */ 399 PTR compat_sys_epoll_pwait 400 PTR sys_ioprio_set 401 PTR sys_ioprio_get 402 .size sysn32_call_table,.-sysn32_call_table 403