Initial import

1 files changed, 432 insertions, 0 deletions

diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
new file mode 100644
index 000000000..446cc654d
--- /dev/null
+++ b/arch/mips/kernel/scall64-n32.S
@@ -0,0 +1,432 @@
+/*
+ * 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>
+
+#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_WORK_SYSCALL_ENTRY
+	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
+
+	j	syscall_exit_partial
+
+/* ------------------------------------------------------------------------ */
+
+n32_syscall_trace_entry:
+	SAVE_STATIC
+	move	s0, t2
+	move	a0, sp
+	daddiu	a1, v0, __NR_N32_Linux
+	jal	syscall_trace_enter
+
+	bltz	v0, 2f			# seccomp failed? Skip syscall
+
+	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
+
+2:	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)
+
+	.type	sysn32_call_table, @object
+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	compat_sys_rt_sigaction
+	PTR	compat_sys_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	compat_sys_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	compat_sys_getsockopt
+	PTR	__sys_clone			/* 6055 */
+	PTR	__sys_fork
+	PTR	compat_sys_execve
+	PTR	sys_exit
+	PTR	compat_sys_wait4
+	PTR	sys_kill			/* 6060 */
+	PTR	sys_newuname
+	PTR	sys_semget
+	PTR	sys_semop
+	PTR	compat_sys_semctl
+	PTR	sys_shmdt			/* 6065 */
+	PTR	sys_msgget
+	PTR	compat_sys_msgsnd
+	PTR	compat_sys_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	compat_sys_rt_sigpending	/* 6125 */
+	PTR	compat_sys_rt_sigtimedwait
+	PTR	compat_sys_rt_sigqueueinfo
+	PTR	compat_sys_rt_sigsuspend
+	PTR	compat_sys_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	compat_sys_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	compat_sys_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	compat_sys_mbind
+	PTR	compat_sys_get_mempolicy
+	PTR	compat_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	compat_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	compat_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	compat_sys_signalfd4
+	PTR	sys_eventfd2
+	PTR	sys_epoll_create1
+	PTR	sys_dup3			/* 6290 */
+	PTR	sys_pipe2
+	PTR	sys_inotify_init1
+	PTR	compat_sys_preadv
+	PTR	compat_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 */
+	PTR	sys_kcmp
+	PTR	sys_finit_module
+	PTR	sys_sched_setattr
+	PTR	sys_sched_getattr
+	PTR	sys_renameat2			/* 6315 */
+	PTR	sys_seccomp
+	PTR	sys_getrandom
+	PTR	sys_memfd_create
+	PTR	sys_bpf
+	PTR	compat_sys_execveat		/* 6320 */
+	.size	sysn32_call_table,.-sysn32_call_table