scall64-n32.S
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/*
* 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/errno.h>
#include <asm/asm.h>
#include <asm/asmmacro.h>
#include <asm/irqflags.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
TRACE_IRQS_ON_RELOAD
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
ld t1, PT_R2(sp) # syscall number
dnegu v0 # error
sd t1, PT_R0(sp) # save it 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
jal syscall_trace_enter
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
ld t1, PT_R2(sp) # syscall number
dnegu v0 # error
sd t1, PT_R0(sp) # save it 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 sys_mips_mmap
PTR sys_mprotect /* 6010 */
PTR sys_munmap
PTR sys_brk
PTR sys_32_rt_sigaction
PTR sys_32_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 sysm_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 sys_shmat
PTR compat_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 sys_32_sendfile
PTR sys_socket /* 6040 */
PTR sys_connect
PTR sys_accept
PTR sys_sendto
PTR compat_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 sys_newuname
PTR sys_semget
PTR sys_semop
PTR sys_n32_semctl
PTR sys_shmdt /* 6065 */
PTR sys_msgget
PTR sys_n32_msgsnd
PTR sys_n32_msgrcv
PTR compat_sys_msgctl
PTR compat_sys_fcntl /* 6070 */
PTR sys_flock
PTR sys_fsync
PTR sys_fdatasync
PTR sys_truncate
PTR sys_ftruncate /* 6075 */
PTR compat_sys_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 compat_sys_gettimeofday
PTR compat_sys_getrlimit /* 6095 */
PTR compat_sys_getrusage
PTR compat_sys_sysinfo
PTR compat_sys_times
PTR compat_sys_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 sys_32_rt_sigpending /* 6125 */
PTR compat_sys_rt_sigtimedwait
PTR sys_32_rt_sigqueueinfo
PTR sysn32_rt_sigsuspend
PTR sys32_sigaltstack
PTR compat_sys_utime /* 6130 */
PTR sys_mknod
PTR sys_32_personality
PTR compat_sys_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 sys_32_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 compat_sys_sysctl
PTR sys_prctl
PTR compat_sys_adjtimex
PTR compat_sys_setrlimit /* 6155 */
PTR sys_chroot
PTR sys_sync
PTR sys_acct
PTR compat_sys_settimeofday
PTR compat_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_ni_syscall /* was 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 sys_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 sys_32_futex
PTR compat_sys_sched_setaffinity /* 6195 */
PTR compat_sys_sched_getaffinity
PTR sys_cacheflush
PTR sys_cachectl
PTR sys_sysmips
PTR compat_sys_io_setup /* 6200 */
PTR sys_io_destroy
PTR compat_sys_io_getevents
PTR compat_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 compat_sys_semtimedop /* 6215 */
PTR sys_fadvise64_64
PTR compat_sys_statfs64
PTR compat_sys_fstatfs64
PTR sys_sendfile64
PTR compat_sys_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 compat_sys_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 compat_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 compat_sys_pselect6
PTR compat_sys_ppoll /* 6265 */
PTR sys_unshare
PTR sys_splice
PTR sys_sync_file_range
PTR sys_tee
PTR compat_sys_vmsplice /* 6270 */
PTR sys_move_pages
PTR compat_sys_set_robust_list
PTR compat_sys_get_robust_list
PTR compat_sys_kexec_load
PTR sys_getcpu /* 6275 */
PTR compat_sys_epoll_pwait
PTR sys_ioprio_set
PTR sys_ioprio_get
PTR compat_sys_utimensat
PTR compat_sys_signalfd /* 6280 */
PTR sys_ni_syscall /* was timerfd */
PTR sys_eventfd
PTR sys_fallocate
PTR sys_timerfd_create
PTR compat_sys_timerfd_gettime /* 6285 */
PTR compat_sys_timerfd_settime
PTR sys_signalfd4
PTR sys_eventfd2
PTR sys_epoll_create1
PTR sys_dup3 /* 6290 */
PTR sys_pipe2
PTR sys_inotify_init1
PTR sys_preadv
PTR sys_pwritev
PTR compat_sys_rt_tgsigqueueinfo /* 6295 */
PTR sys_perf_event_open
PTR sys_accept4
PTR compat_sys_recvmmsg
PTR sys_getdents64
PTR sys_fanotify_init /* 6300 */
PTR sys_fanotify_mark
PTR sys_prlimit64
PTR sys_name_to_handle_at
PTR sys_open_by_handle_at
PTR compat_sys_clock_adjtime /* 6305 */
PTR sys_syncfs
PTR compat_sys_sendmmsg
PTR sys_setns
PTR compat_sys_process_vm_readv
PTR compat_sys_process_vm_writev /* 6310 */
.size sysn32_call_table,.-sysn32_call_table