/*
   * 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