entry.s

Linux内核源代码 为压缩文件 是<<Linux内核>>一书中的源代码

	mov.l	$r11, @-$r15
	mov.l	$r10, @-$r15
	mov.l	$r9, @-$r15
	mov.l	$r8, @-$r15
	!
	stc	$sr, $r8	! Back to normal register bank, and
	or	$k1, $r8	! Block all interrupts, may release FPU
	mov.l	5f, $k1
	and	$k1, $r8	! ...
	ldc	$r8, $sr	! ...changed here.
	!
	mov.l	$r7, @-$r15
	mov.l	$r6, @-$r15
	mov.l	$r5, @-$r15
	mov.l	$r4, @-$r15
	mov.l	$r3, @-$r15
	mov.l	$r2, @-$r15
	mov.l	$r1, @-$r15
	mov.l	$r0, @-$r15
	! Then, dispatch to the handler, according to the exception code.
	stc	$k_ex_code, $r8
	shlr2	$r8
	shlr	$r8
	mov.l	1f, $r9
	add	$r8, $r9
	mov.l	@$r9, $r9
	jmp	@$r9
	 nop
	.align	2
1:	.long	SYMBOL_NAME(exception_handling_table)
2:	.long	0x00008000	! FD=1
3:	.long	0x000000f0	! FD=0, IMASK=15
4:	.long	0x000080f0	! FD=1, IMASK=15
5:	.long	0xcfffffff	! RB=0, BL=0
6:	.long	0x00080000	! SZ=0, PR=1

none:
	rts
	 nop

.data
ENTRY(exception_handling_table)
	.long	error
	.long	error
	.long	tlb_miss_load
	.long	tlb_miss_store
	.long	initial_page_write
	.long	tlb_protection_violation_load
	.long	tlb_protection_violation_store
	.long	error	! address_error_load        (filled by trap_init)
	.long	error	! address_error_store       (filled by trap_init)
#if defined(__SH4__)
	.long	SYMBOL_NAME(do_fpu_error)
#else
	.long	error	! fpu_exception
#endif
	.long	error
	.long	system_call			! Unconditional Trap
	.long	error	! reserved_instruction      (filled by trap_init)
	.long	error	! illegal_slot_instruction  (filled by trap_init)
ENTRY(nmi_slot)
	.long	none				! Not implemented yet
ENTRY(user_break_point_trap)
	.long	break_point_trap
ENTRY(interrupt_table)
	! external hardware
	.long	SYMBOL_NAME(do_IRQ)	! 0000
	.long	SYMBOL_NAME(do_IRQ)	! 0001
	.long	SYMBOL_NAME(do_IRQ)	! 0010
	.long	SYMBOL_NAME(do_IRQ)	! 0011
	.long	SYMBOL_NAME(do_IRQ)	! 0100
	.long	SYMBOL_NAME(do_IRQ)	! 0101
	.long	SYMBOL_NAME(do_IRQ)	! 0110
	.long	SYMBOL_NAME(do_IRQ)	! 0111
	.long	SYMBOL_NAME(do_IRQ)	! 1000
	.long	SYMBOL_NAME(do_IRQ)	! 1001
	.long	SYMBOL_NAME(do_IRQ)	! 1010
	.long	SYMBOL_NAME(do_IRQ)	! 1011
	.long	SYMBOL_NAME(do_IRQ)	! 1100
	.long	SYMBOL_NAME(do_IRQ)	! 1101
	.long	SYMBOL_NAME(do_IRQ)	! 1110
	.long	error
	! Internal hardware
	.long	SYMBOL_NAME(do_IRQ)	! TMU0 tuni0
	.long	SYMBOL_NAME(do_IRQ)	! TMU1 tuni1
	.long	SYMBOL_NAME(do_IRQ)	! TMU2 tuni2
	.long	SYMBOL_NAME(do_IRQ)	!      ticpi2
	.long	SYMBOL_NAME(do_IRQ)	! RTC  ati
	.long	SYMBOL_NAME(do_IRQ)	!      pri
	.long	SYMBOL_NAME(do_IRQ)	!      cui
	.long	SYMBOL_NAME(do_IRQ)	! SCI  eri
	.long	SYMBOL_NAME(do_IRQ)	!      rxi
	.long	SYMBOL_NAME(do_IRQ)	!      txi
	.long	SYMBOL_NAME(do_IRQ)	!      tei
	.long	SYMBOL_NAME(do_IRQ)	! WDT  iti
	.long	SYMBOL_NAME(do_IRQ)	! REF  rcmi
	.long	SYMBOL_NAME(do_IRQ)	!      rovi
	.long	SYMBOL_NAME(do_IRQ)
	.long	SYMBOL_NAME(do_IRQ)
#if  defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709)
	.long	SYMBOL_NAME(do_IRQ)	! 32 IRQ  irq0
	.long	SYMBOL_NAME(do_IRQ)	! 33      irq1
	.long	SYMBOL_NAME(do_IRQ)	! 34      irq2
	.long	SYMBOL_NAME(do_IRQ)	! 35      irq3
	.long	SYMBOL_NAME(do_IRQ)	! 36      irq4
	.long	SYMBOL_NAME(do_IRQ)	! 37      irq5
	.long	SYMBOL_NAME(do_IRQ)	! 38
	.long	SYMBOL_NAME(do_IRQ)	! 39
	.long	SYMBOL_NAME(do_IRQ)	! 40 PINT pint0-7
	.long	SYMBOL_NAME(do_IRQ)	! 41      pint8-15
	.long	SYMBOL_NAME(do_IRQ)	! 42
	.long	SYMBOL_NAME(do_IRQ)	! 43
	.long	SYMBOL_NAME(do_IRQ)	! 44
	.long	SYMBOL_NAME(do_IRQ)	! 45
	.long	SYMBOL_NAME(do_IRQ)	! 46
	.long	SYMBOL_NAME(do_IRQ)	! 47
	.long	SYMBOL_NAME(do_IRQ)	! 48 DMAC dei0
	.long	SYMBOL_NAME(do_IRQ)	! 49      dei1
	.long	SYMBOL_NAME(do_IRQ)	! 50      dei2
	.long	SYMBOL_NAME(do_IRQ)	! 51      dei3
	.long	SYMBOL_NAME(do_IRQ)	! 52 IrDA eri1
	.long	SYMBOL_NAME(do_IRQ)	! 53      rxi1
	.long	SYMBOL_NAME(do_IRQ)	! 54      bri1
	.long	SYMBOL_NAME(do_IRQ)	! 55      txi1
	.long	SYMBOL_NAME(do_IRQ)	! 56 SCIF eri2
	.long	SYMBOL_NAME(do_IRQ)	! 57      rxi2
	.long	SYMBOL_NAME(do_IRQ)	! 58      bri2
	.long	SYMBOL_NAME(do_IRQ)	! 59      txi2
	.long	SYMBOL_NAME(do_IRQ)	! 60 ADC  adi
#if defined(CONFIG_CPU_SUBTYPE_SH7707)
	.long   SYMBOL_NAME(do_IRQ)	! 61 LCDC lcdi
	.long   SYMBOL_NAME(do_IRQ)	! 62 PCC  pcc0i
	.long   SYMBOL_NAME(do_IRQ)	! 63      pcc1i
#endif
#elif defined(__SH4__)
	.long	SYMBOL_NAME(do_IRQ)	! Hitachi UDI
	.long	SYMBOL_NAME(do_IRQ)	! GPIO
	.long	SYMBOL_NAME(do_IRQ)	! DMAC dmte0
	.long	SYMBOL_NAME(do_IRQ)	!      dmte1
	.long	SYMBOL_NAME(do_IRQ)	!      dmte2
	.long	SYMBOL_NAME(do_IRQ)	!      dmte3
	.long	SYMBOL_NAME(do_IRQ)	!      dmae
	.long	SYMBOL_NAME(do_IRQ)
	.long	SYMBOL_NAME(do_IRQ)	! SCIF eri
	.long	SYMBOL_NAME(do_IRQ)	!      rxi
	.long	SYMBOL_NAME(do_IRQ)	!      bri
	.long	SYMBOL_NAME(do_IRQ)	!      txi
	.long	error
	.long	error
	.long	error
	.long	error
	.long	SYMBOL_NAME(do_fpu_state_restore)
	.long	SYMBOL_NAME(do_fpu_state_restore)
#endif

ENTRY(sys_call_table)
	.long SYMBOL_NAME(sys_ni_syscall)	/* 0  -  old "setup()" system call*/
	.long SYMBOL_NAME(sys_exit)
	.long SYMBOL_NAME(sys_fork)
	.long SYMBOL_NAME(sys_read)
	.long SYMBOL_NAME(sys_write)
	.long SYMBOL_NAME(sys_open)		/* 5 */
	.long SYMBOL_NAME(sys_close)
	.long SYMBOL_NAME(sys_waitpid)
	.long SYMBOL_NAME(sys_creat)
	.long SYMBOL_NAME(sys_link)
	.long SYMBOL_NAME(sys_unlink)		/* 10 */
	.long SYMBOL_NAME(sys_execve)
	.long SYMBOL_NAME(sys_chdir)
	.long SYMBOL_NAME(sys_time)
	.long SYMBOL_NAME(sys_mknod)
	.long SYMBOL_NAME(sys_chmod)		/* 15 */
	.long SYMBOL_NAME(sys_lchown16)
	.long SYMBOL_NAME(sys_ni_syscall)	/* old break syscall holder */
	.long SYMBOL_NAME(sys_stat)
	.long SYMBOL_NAME(sys_lseek)
	.long SYMBOL_NAME(sys_getpid)		/* 20 */
	.long SYMBOL_NAME(sys_mount)
	.long SYMBOL_NAME(sys_oldumount)
	.long SYMBOL_NAME(sys_setuid16)
	.long SYMBOL_NAME(sys_getuid16)
	.long SYMBOL_NAME(sys_stime)		/* 25 */
	.long SYMBOL_NAME(sys_ptrace)
	.long SYMBOL_NAME(sys_alarm)
	.long SYMBOL_NAME(sys_fstat)
	.long SYMBOL_NAME(sys_pause)
	.long SYMBOL_NAME(sys_utime)		/* 30 */
	.long SYMBOL_NAME(sys_ni_syscall)	/* old stty syscall holder */
	.long SYMBOL_NAME(sys_ni_syscall)	/* old gtty syscall holder */
	.long SYMBOL_NAME(sys_access)
	.long SYMBOL_NAME(sys_nice)
	.long SYMBOL_NAME(sys_ni_syscall)	/* 35 */		/* old ftime syscall holder */
	.long SYMBOL_NAME(sys_sync)
	.long SYMBOL_NAME(sys_kill)
	.long SYMBOL_NAME(sys_rename)
	.long SYMBOL_NAME(sys_mkdir)
	.long SYMBOL_NAME(sys_rmdir)		/* 40 */
	.long SYMBOL_NAME(sys_dup)
	.long SYMBOL_NAME(sys_pipe)
	.long SYMBOL_NAME(sys_times)
	.long SYMBOL_NAME(sys_ni_syscall)	/* old prof syscall holder */
	.long SYMBOL_NAME(sys_brk)		/* 45 */
	.long SYMBOL_NAME(sys_setgid16)
	.long SYMBOL_NAME(sys_getgid16)
	.long SYMBOL_NAME(sys_signal)
	.long SYMBOL_NAME(sys_geteuid16)
	.long SYMBOL_NAME(sys_getegid16)	/* 50 */
	.long SYMBOL_NAME(sys_acct)
	.long SYMBOL_NAME(sys_umount)		/* recycled never used phys() */
	.long SYMBOL_NAME(sys_ni_syscall)	/* old lock syscall holder */
	.long SYMBOL_NAME(sys_ioctl)
	.long SYMBOL_NAME(sys_fcntl)		/* 55 */
	.long SYMBOL_NAME(sys_ni_syscall)	/* old mpx syscall holder */
	.long SYMBOL_NAME(sys_setpgid)
	.long SYMBOL_NAME(sys_ni_syscall)	/* old ulimit syscall holder */
	.long SYMBOL_NAME(sys_ni_syscall)	/* sys_olduname */
	.long SYMBOL_NAME(sys_umask)		/* 60 */
	.long SYMBOL_NAME(sys_chroot)
	.long SYMBOL_NAME(sys_ustat)
	.long SYMBOL_NAME(sys_dup2)
	.long SYMBOL_NAME(sys_getppid)
	.long SYMBOL_NAME(sys_getpgrp)		/* 65 */
	.long SYMBOL_NAME(sys_setsid)
	.long SYMBOL_NAME(sys_sigaction)
	.long SYMBOL_NAME(sys_sgetmask)
	.long SYMBOL_NAME(sys_ssetmask)
	.long SYMBOL_NAME(sys_setreuid16)	/* 70 */
	.long SYMBOL_NAME(sys_setregid16)
	.long SYMBOL_NAME(sys_sigsuspend)
	.long SYMBOL_NAME(sys_sigpending)
	.long SYMBOL_NAME(sys_sethostname)
	.long SYMBOL_NAME(sys_setrlimit)	/* 75 */
	.long SYMBOL_NAME(sys_old_getrlimit)
	.long SYMBOL_NAME(sys_getrusage)
	.long SYMBOL_NAME(sys_gettimeofday)
	.long SYMBOL_NAME(sys_settimeofday)
	.long SYMBOL_NAME(sys_getgroups16)	/* 80 */
	.long SYMBOL_NAME(sys_setgroups16)
	.long SYMBOL_NAME(sys_ni_syscall)	/* sys_oldselect */
	.long SYMBOL_NAME(sys_symlink)
	.long SYMBOL_NAME(sys_lstat)
	.long SYMBOL_NAME(sys_readlink)		/* 85 */
	.long SYMBOL_NAME(sys_uselib)
	.long SYMBOL_NAME(sys_swapon)
	.long SYMBOL_NAME(sys_reboot)
	.long SYMBOL_NAME(old_readdir)
	.long SYMBOL_NAME(old_mmap)		/* 90 */
	.long SYMBOL_NAME(sys_munmap)
	.long SYMBOL_NAME(sys_truncate)
	.long SYMBOL_NAME(sys_ftruncate)
	.long SYMBOL_NAME(sys_fchmod)
	.long SYMBOL_NAME(sys_fchown16)		/* 95 */
	.long SYMBOL_NAME(sys_getpriority)
	.long SYMBOL_NAME(sys_setpriority)
	.long SYMBOL_NAME(sys_ni_syscall)	/* old profil syscall holder */
	.long SYMBOL_NAME(sys_statfs)
	.long SYMBOL_NAME(sys_fstatfs)		/* 100 */
	.long SYMBOL_NAME(sys_ni_syscall)	/* ioperm */
	.long SYMBOL_NAME(sys_socketcall)
	.long SYMBOL_NAME(sys_syslog)
	.long SYMBOL_NAME(sys_setitimer)
	.long SYMBOL_NAME(sys_getitimer)	/* 105 */
	.long SYMBOL_NAME(sys_newstat)
	.long SYMBOL_NAME(sys_newlstat)
	.long SYMBOL_NAME(sys_newfstat)
	.long SYMBOL_NAME(sys_uname)
	.long SYMBOL_NAME(sys_ni_syscall)	/* 110 */ /* iopl */
	.long SYMBOL_NAME(sys_vhangup)
	.long SYMBOL_NAME(sys_ni_syscall)	/* idle */
	.long SYMBOL_NAME(sys_ni_syscall)	/* vm86old */
	.long SYMBOL_NAME(sys_wait4)
	.long SYMBOL_NAME(sys_swapoff)		/* 115 */
	.long SYMBOL_NAME(sys_sysinfo)
	.long SYMBOL_NAME(sys_ipc)
	.long SYMBOL_NAME(sys_fsync)
	.long SYMBOL_NAME(sys_sigreturn)
	.long SYMBOL_NAME(sys_clone)		/* 120 */
	.long SYMBOL_NAME(sys_setdomainname)
	.long SYMBOL_NAME(sys_newuname)
	.long SYMBOL_NAME(sys_ni_syscall)	/* sys_modify_ldt */
	.long SYMBOL_NAME(sys_adjtimex)
	.long SYMBOL_NAME(sys_mprotect)		/* 125 */
	.long SYMBOL_NAME(sys_sigprocmask)
	.long SYMBOL_NAME(sys_create_module)
	.long SYMBOL_NAME(sys_init_module)
	.long SYMBOL_NAME(sys_delete_module)
	.long SYMBOL_NAME(sys_get_kernel_syms)	/* 130 */
	.long SYMBOL_NAME(sys_quotactl)
	.long SYMBOL_NAME(sys_getpgid)
	.long SYMBOL_NAME(sys_fchdir)
	.long SYMBOL_NAME(sys_bdflush)
	.long SYMBOL_NAME(sys_sysfs)		/* 135 */
	.long SYMBOL_NAME(sys_personality)
	.long SYMBOL_NAME(sys_ni_syscall)	/* for afs_syscall */
	.long SYMBOL_NAME(sys_setfsuid16)
	.long SYMBOL_NAME(sys_setfsgid16)
	.long SYMBOL_NAME(sys_llseek)		/* 140 */
	.long SYMBOL_NAME(sys_getdents)
	.long SYMBOL_NAME(sys_select)
	.long SYMBOL_NAME(sys_flock)
	.long SYMBOL_NAME(sys_msync)
	.long SYMBOL_NAME(sys_readv)		/* 145 */
	.long SYMBOL_NAME(sys_writev)
	.long SYMBOL_NAME(sys_getsid)
	.long SYMBOL_NAME(sys_fdatasync)
	.long SYMBOL_NAME(sys_sysctl)
	.long SYMBOL_NAME(sys_mlock)		/* 150 */
	.long SYMBOL_NAME(sys_munlock)
	.long SYMBOL_NAME(sys_mlockall)
	.long SYMBOL_NAME(sys_munlockall)
	.long SYMBOL_NAME(sys_sched_setparam)
	.long SYMBOL_NAME(sys_sched_getparam)   /* 155 */
	.long SYMBOL_NAME(sys_sched_setscheduler)
	.long SYMBOL_NAME(sys_sched_getscheduler)
	.long SYMBOL_NAME(sys_sched_yield)
	.long SYMBOL_NAME(sys_sched_get_priority_max)
	.long SYMBOL_NAME(sys_sched_get_priority_min)  /* 160 */
	.long SYMBOL_NAME(sys_sched_rr_get_interval)
	.long SYMBOL_NAME(sys_nanosleep)
	.long SYMBOL_NAME(sys_mremap)
	.long SYMBOL_NAME(sys_setresuid16)
	.long SYMBOL_NAME(sys_getresuid16)	/* 165 */
	.long SYMBOL_NAME(sys_ni_syscall)	/* vm86 */
	.long SYMBOL_NAME(sys_query_module)
	.long SYMBOL_NAME(sys_poll)
	.long SYMBOL_NAME(sys_nfsservctl)
	.long SYMBOL_NAME(sys_setresgid16)	/* 170 */
	.long SYMBOL_NAME(sys_getresgid16)
	.long SYMBOL_NAME(sys_prctl)
	.long SYMBOL_NAME(sys_rt_sigreturn)
	.long SYMBOL_NAME(sys_rt_sigaction)
	.long SYMBOL_NAME(sys_rt_sigprocmask)	/* 175 */
	.long SYMBOL_NAME(sys_rt_sigpending)
	.long SYMBOL_NAME(sys_rt_sigtimedwait)
	.long SYMBOL_NAME(sys_rt_sigqueueinfo)
	.long SYMBOL_NAME(sys_rt_sigsuspend)
	.long SYMBOL_NAME(sys_pread)		/* 180 */
	.long SYMBOL_NAME(sys_pwrite)
	.long SYMBOL_NAME(sys_chown16)
	.long SYMBOL_NAME(sys_getcwd)
	.long SYMBOL_NAME(sys_capget)
	.long SYMBOL_NAME(sys_capset)           /* 185 */
	.long SYMBOL_NAME(sys_sigaltstack)
	.long SYMBOL_NAME(sys_sendfile)
	.long SYMBOL_NAME(sys_ni_syscall)	/* streams1 */
	.long SYMBOL_NAME(sys_ni_syscall)	/* streams2 */
	.long SYMBOL_NAME(sys_vfork)            /* 190 */
	.long SYMBOL_NAME(sys_getrlimit)
	.long SYMBOL_NAME(sys_mmap2)
	.long SYMBOL_NAME(sys_truncate64)
	.long SYMBOL_NAME(sys_ftruncate64)
	.long SYMBOL_NAME(sys_stat64)		/* 195 */
	.long SYMBOL_NAME(sys_lstat64)
	.long SYMBOL_NAME(sys_fstat64)
	.long SYMBOL_NAME(sys_lchown)
	.long SYMBOL_NAME(sys_getuid)
	.long SYMBOL_NAME(sys_getgid)		/* 200 */
	.long SYMBOL_NAME(sys_geteuid)
	.long SYMBOL_NAME(sys_getegid)
	.long SYMBOL_NAME(sys_setreuid)
	.long SYMBOL_NAME(sys_setregid)
	.long SYMBOL_NAME(sys_getgroups)	/* 205 */
	.long SYMBOL_NAME(sys_setgroups)
	.long SYMBOL_NAME(sys_fchown)
	.long SYMBOL_NAME(sys_setresuid)
	.long SYMBOL_NAME(sys_getresuid)
	.long SYMBOL_NAME(sys_setresgid)	/* 210 */
	.long SYMBOL_NAME(sys_getresgid)
	.long SYMBOL_NAME(sys_chown)
	.long SYMBOL_NAME(sys_setuid)
	.long SYMBOL_NAME(sys_setgid)
	.long SYMBOL_NAME(sys_setfsuid)		/* 215 */
	.long SYMBOL_NAME(sys_setfsgid)
	.long SYMBOL_NAME(sys_pivot_root)
	.long SYMBOL_NAME(sys_mincore)
	.long SYMBOL_NAME(sys_madvise)
	.long SYMBOL_NAME(sys_getdents64)	/* 220 */
	.long SYMBOL_NAME(sys_fcntl64)

	/*
	 * NOTE!! This doesn't have to be exact - we just have
	 * to make sure we have _enough_ of the "sys_ni_syscall"
	 * entries. Don't panic if you notice that this hasn't
	 * been shrunk every time we add a new system call.
	 */
	.rept NR_syscalls-221
		.long SYMBOL_NAME(sys_ni_syscall)
	.endr

/* End of entry.S */