| /* |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| * |
| * Copyright (C) 1995, 96, 97, 98, 99, 2000, 01 by Ralf Baechle |
| * Copyright (C) 1999, 2000 Silicon Graphics, Inc. |
| * Copyright (C) 2001 MIPS Technologies, Inc. |
| */ |
| #include <linux/config.h> |
| #include <linux/errno.h> |
| #include <asm/asm.h> |
| #include <asm/asmmacro.h> |
| #include <asm/mipsregs.h> |
| #include <asm/regdef.h> |
| #include <asm/stackframe.h> |
| #include <asm/thread_info.h> |
| #include <asm/unistd.h> |
| |
| /* This duplicates the definition from <linux/sched.h> */ |
| #define PT_TRACESYS 0x00000002 /* tracing system calls */ |
| |
| /* This duplicates the definition from <asm/signal.h> */ |
| #define SIGILL 4 /* Illegal instruction (ANSI). */ |
| |
| #ifndef CONFIG_MIPS32_O32 |
| /* No O32, so define handle_sys here */ |
| #define handle_sysn32 handle_sys |
| #endif |
| |
| .align 5 |
| NESTED(handle_sysn32, PT_SIZE, sp) |
| #ifndef CONFIG_MIPS32_O32 |
| .set noat |
| SAVE_SOME |
| STI |
| .set at |
| #endif |
| |
| dsubu t0, v0, __NR_N32_Linux # check syscall number |
| sltiu t0, t0, __NR_N32_Linux_syscalls + 1 |
| |
| #ifndef CONFIG_MIPS32_O32 |
| ld t1, PT_EPC(sp) # skip syscall on return |
| daddiu t1, 4 # skip to next instruction |
| sd t1, PT_EPC(sp) |
| #endif |
| beqz t0, not_n32_scall |
| |
| dsll t0, v0, 3 # offset into table |
| ld t2, (sysn32_call_table - (__NR_N32_Linux * 8))(t0) |
| |
| sd a3, PT_R26(sp) # save a3 for syscall restarting |
| |
| li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT |
| LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? |
| and t0, t1, t0 |
| bnez t0, n32_syscall_trace_entry |
| |
| jalr t2 # Do The Real Thing (TM) |
| |
| li t0, -EMAXERRNO - 1 # error? |
| sltu t0, t0, v0 |
| sd t0, PT_R7(sp) # set error flag |
| beqz t0, 1f |
| |
| dnegu v0 # error |
| sd v0, PT_R0(sp) # set flag for syscall restarting |
| 1: sd v0, PT_R2(sp) # result |
| |
| local_irq_disable # make sure need_resched and |
| # signals dont change between |
| # sampling and return |
| LONG_L a2, TI_FLAGS($28) # current->work |
| li t0, _TIF_ALLWORK_MASK |
| and t0, a2, t0 |
| bnez t0, n32_syscall_exit_work |
| |
| j restore_partial |
| |
| n32_syscall_exit_work: |
| j syscall_exit_work_partial |
| |
| /* ------------------------------------------------------------------------ */ |
| |
| n32_syscall_trace_entry: |
| SAVE_STATIC |
| move s0, t2 |
| move a0, sp |
| li a1, 0 |
| jal do_syscall_trace |
| |
| move t0, s0 |
| RESTORE_STATIC |
| ld a0, PT_R4(sp) # Restore argument registers |
| ld a1, PT_R5(sp) |
| ld a2, PT_R6(sp) |
| ld a3, PT_R7(sp) |
| ld a4, PT_R8(sp) |
| ld a5, PT_R9(sp) |
| jalr t0 |
| |
| li t0, -EMAXERRNO - 1 # error? |
| sltu t0, t0, v0 |
| sd t0, PT_R7(sp) # set error flag |
| beqz t0, 1f |
| |
| dnegu v0 # error |
| sd v0, PT_R0(sp) # set flag for syscall restarting |
| 1: sd v0, PT_R2(sp) # result |
| |
| j syscall_exit |
| |
| not_n32_scall: |
| /* This is not an n32 compatibility syscall, pass it on to |
| the n64 syscall handlers. */ |
| j handle_sys64 |
| |
| END(handle_sysn32) |
| |
| EXPORT(sysn32_call_table) |
| PTR sys_read /* 6000 */ |
| PTR sys_write |
| PTR sys_open |
| PTR sys_close |
| PTR sys_newstat |
| PTR sys_newfstat /* 6005 */ |
| PTR sys_newlstat |
| PTR sys_poll |
| PTR sys_lseek |
| PTR old_mmap |
| PTR sys_mprotect /* 6010 */ |
| PTR sys_munmap |
| PTR sys_brk |
| PTR sys32_rt_sigaction |
| PTR sys32_rt_sigprocmask |
| PTR compat_sys_ioctl /* 6015 */ |
| PTR sys_pread64 |
| PTR sys_pwrite64 |
| PTR compat_sys_readv |
| PTR compat_sys_writev |
| PTR sys_access /* 6020 */ |
| PTR sys_pipe |
| PTR compat_sys_select |
| PTR sys_sched_yield |
| PTR sys_mremap |
| PTR sys_msync /* 6025 */ |
| PTR sys_mincore |
| PTR sys_madvise |
| PTR sys_shmget |
| PTR sys32_shmat |
| PTR sys_shmctl /* 6030 */ |
| PTR sys_dup |
| PTR sys_dup2 |
| PTR sys_pause |
| PTR compat_sys_nanosleep |
| PTR compat_sys_getitimer /* 6035 */ |
| PTR compat_sys_setitimer |
| PTR sys_alarm |
| PTR sys_getpid |
| PTR sys32_sendfile |
| PTR sys_socket /* 6040 */ |
| PTR sys_connect |
| PTR sys_accept |
| PTR sys_sendto |
| PTR sys_recvfrom |
| PTR compat_sys_sendmsg /* 6045 */ |
| PTR compat_sys_recvmsg |
| PTR sys_shutdown |
| PTR sys_bind |
| PTR sys_listen |
| PTR sys_getsockname /* 6050 */ |
| PTR sys_getpeername |
| PTR sys_socketpair |
| PTR compat_sys_setsockopt |
| PTR sys_getsockopt |
| PTR sys_clone /* 6055 */ |
| PTR sys_fork |
| PTR sys32_execve |
| PTR sys_exit |
| PTR compat_sys_wait4 |
| PTR sys_kill /* 6060 */ |
| PTR sys32_newuname |
| PTR sys_semget |
| PTR sys_semop |
| PTR sys_semctl |
| PTR sys_shmdt /* 6065 */ |
| PTR sys_msgget |
| PTR sys_msgsnd |
| PTR sys_msgrcv |
| PTR sys_msgctl |
| PTR compat_sys_fcntl /* 6070 */ |
| PTR sys_flock |
| PTR sys_fsync |
| PTR sys_fdatasync |
| PTR sys_truncate |
| PTR sys_ftruncate /* 6075 */ |
| PTR sys32_getdents |
| PTR sys_getcwd |
| PTR sys_chdir |
| PTR sys_fchdir |
| PTR sys_rename /* 6080 */ |
| PTR sys_mkdir |
| PTR sys_rmdir |
| PTR sys_creat |
| PTR sys_link |
| PTR sys_unlink /* 6085 */ |
| PTR sys_symlink |
| PTR sys_readlink |
| PTR sys_chmod |
| PTR sys_fchmod |
| PTR sys_chown /* 6090 */ |
| PTR sys_fchown |
| PTR sys_lchown |
| PTR sys_umask |
| PTR sys32_gettimeofday |
| PTR compat_sys_getrlimit /* 6095 */ |
| PTR compat_sys_getrusage |
| PTR sys32_sysinfo |
| PTR compat_sys_times |
| PTR sys32_ptrace |
| PTR sys_getuid /* 6100 */ |
| PTR sys_syslog |
| PTR sys_getgid |
| PTR sys_setuid |
| PTR sys_setgid |
| PTR sys_geteuid /* 6105 */ |
| PTR sys_getegid |
| PTR sys_setpgid |
| PTR sys_getppid |
| PTR sys_getpgrp |
| PTR sys_setsid /* 6110 */ |
| PTR sys_setreuid |
| PTR sys_setregid |
| PTR sys_getgroups |
| PTR sys_setgroups |
| PTR sys_setresuid /* 6115 */ |
| PTR sys_getresuid |
| PTR sys_setresgid |
| PTR sys_getresgid |
| PTR sys_getpgid |
| PTR sys_setfsuid /* 6120 */ |
| PTR sys_setfsgid |
| PTR sys_getsid |
| PTR sys_capget |
| PTR sys_capset |
| PTR sys32_rt_sigpending /* 6125 */ |
| PTR sysn32_rt_sigtimedwait |
| PTR sys_rt_sigqueueinfo |
| PTR sys32_rt_sigsuspend |
| PTR sys32_sigaltstack |
| PTR compat_sys_utime /* 6130 */ |
| PTR sys_mknod |
| PTR sys32_personality |
| PTR sys32_ustat |
| PTR compat_sys_statfs |
| PTR compat_sys_fstatfs /* 6135 */ |
| PTR sys_sysfs |
| PTR sys_getpriority |
| PTR sys_setpriority |
| PTR sys_sched_setparam |
| PTR sys_sched_getparam /* 6140 */ |
| PTR sys_sched_setscheduler |
| PTR sys_sched_getscheduler |
| PTR sys_sched_get_priority_max |
| PTR sys_sched_get_priority_min |
| PTR sys32_sched_rr_get_interval /* 6145 */ |
| PTR sys_mlock |
| PTR sys_munlock |
| PTR sys_mlockall |
| PTR sys_munlockall |
| PTR sys_vhangup /* 6150 */ |
| PTR sys_pivot_root |
| PTR sys32_sysctl |
| PTR sys_prctl |
| PTR sys32_adjtimex |
| PTR compat_sys_setrlimit /* 6155 */ |
| PTR sys_chroot |
| PTR sys_sync |
| PTR sys_acct |
| PTR sys32_settimeofday |
| PTR sys_mount /* 6160 */ |
| PTR sys_umount |
| PTR sys_swapon |
| PTR sys_swapoff |
| PTR sys_reboot |
| PTR sys_sethostname /* 6165 */ |
| PTR sys_setdomainname |
| PTR sys_ni_syscall /* was create_module */ |
| PTR sys_init_module |
| PTR sys_delete_module |
| PTR sys_ni_syscall /* 6170, was get_kernel_syms */ |
| PTR sys_ni_syscall /* was query_module */ |
| PTR sys_quotactl |
| PTR sys_nfsservctl |
| PTR sys_ni_syscall /* res. for getpmsg */ |
| PTR sys_ni_syscall /* 6175 for putpmsg */ |
| PTR sys_ni_syscall /* res. for afs_syscall */ |
| PTR sys_ni_syscall /* res. for security */ |
| PTR sys_gettid |
| PTR sys32_readahead |
| PTR sys_setxattr /* 6180 */ |
| PTR sys_lsetxattr |
| PTR sys_fsetxattr |
| PTR sys_getxattr |
| PTR sys_lgetxattr |
| PTR sys_fgetxattr /* 6185 */ |
| PTR sys_listxattr |
| PTR sys_llistxattr |
| PTR sys_flistxattr |
| PTR sys_removexattr |
| PTR sys_lremovexattr /* 6190 */ |
| PTR sys_fremovexattr |
| PTR sys_tkill |
| PTR sys_ni_syscall |
| PTR compat_sys_futex |
| PTR compat_sys_sched_setaffinity /* 6195 */ |
| PTR compat_sys_sched_getaffinity |
| PTR sys_cacheflush |
| PTR sys_cachectl |
| PTR sys_sysmips |
| PTR sys_io_setup /* 6200 */ |
| PTR sys_io_destroy |
| PTR sys_io_getevents |
| PTR sys_io_submit |
| PTR sys_io_cancel |
| PTR sys_exit_group /* 6205 */ |
| PTR sys_lookup_dcookie |
| PTR sys_epoll_create |
| PTR sys_epoll_ctl |
| PTR sys_epoll_wait |
| PTR sys_remap_file_pages /* 6210 */ |
| PTR sysn32_rt_sigreturn |
| PTR compat_sys_fcntl64 |
| PTR sys_set_tid_address |
| PTR sys_restart_syscall |
| PTR sys_semtimedop /* 6215 */ |
| PTR sys_fadvise64_64 |
| PTR compat_sys_statfs64 |
| PTR compat_sys_fstatfs64 |
| PTR sys_sendfile64 |
| PTR sys32_timer_create /* 6220 */ |
| PTR compat_sys_timer_settime |
| PTR compat_sys_timer_gettime |
| PTR sys_timer_getoverrun |
| PTR sys_timer_delete |
| PTR compat_sys_clock_settime /* 6225 */ |
| PTR compat_sys_clock_gettime |
| PTR compat_sys_clock_getres |
| PTR compat_sys_clock_nanosleep |
| PTR sys_tgkill |
| PTR compat_sys_utimes /* 6230 */ |
| PTR sys_ni_syscall /* sys_mbind */ |
| PTR sys_ni_syscall /* sys_get_mempolicy */ |
| PTR sys_ni_syscall /* sys_set_mempolicy */ |
| PTR compat_sys_mq_open |
| PTR sys_mq_unlink /* 6235 */ |
| PTR compat_sys_mq_timedsend |
| PTR compat_sys_mq_timedreceive |
| PTR compat_sys_mq_notify |
| PTR compat_sys_mq_getsetattr |
| PTR sys_ni_syscall /* 6240, sys_vserver */ |
| PTR sysn32_waitid |
| PTR sys_ni_syscall /* available, was setaltroot */ |
| PTR sys_add_key |
| PTR sys_request_key |
| PTR sys_keyctl /* 6245 */ |
| PTR sys_set_thread_area |
| PTR sys_inotify_init |
| PTR sys_inotify_add_watch |
| PTR sys_inotify_rm_watch |
| PTR sys_migrate_pages /* 6250 */ |
| PTR sys_openat |
| PTR sys_mkdirat |
| PTR sys_mknodat |
| PTR sys_fchownat |
| PTR sys_futimesat /* 6255 */ |
| PTR sys_newfstatat |
| PTR sys_unlinkat |
| PTR sys_renameat |
| PTR sys_linkat |
| PTR sys_symlinkat /* 6260 */ |
| PTR sys_readlinkat |
| PTR sys_fchmodat |
| PTR sys_faccessat |
| PTR sys_pselect6 |
| PTR sys_ppoll /* 6265 */ |
| PTR sys_unshare |
