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Commit e9cfc147 authored by Yoshinori Sato's avatar Yoshinori Sato Committed by Paul Mundt
Browse files

sh: Fixup SH-2 BUG() trap handling. 



This adds in support for the BUG() trap on SH-2.

Signed-off-by: default avatarYoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent b641fe01

arch/sh/kernel/cpu/sh2/entry.S

+14 −18
Original line number Diff line number Diff line
@@ -178,14 +178,20 @@ interrupt_entry: 
8:	.long	do_exception_error

	

trap_entry:

	/* verbose BUG trapa entry check */

	mov	#0x3e,r8

	cmp/ge	r8,r9

	bf/s	1f

	 add	#-0x10,r9

	add	#0x10,r9

1:	

	shll2	r9			! TRA

	mov	#OFF_TRA,r8

	add	r15,r8

	mov.l	r9,@r8

	mov	r9,r8

#ifdef CONFIG_TRACE_IRQFLAGS

	mov.l	5f, r9

	mov.l	2f, r9

	jsr	@r9

	 nop

#endif
@@ -194,12 +200,8 @@ trap_entry: 
	 nop

	

	.align	2

1:	.long	syscall_exit

2:	.long	break_point_trap_software

3:	.long	NR_syscalls

4:	.long	sys_call_table

#ifdef CONFIG_TRACE_IRQFLAGS

5:	.long	trace_hardirqs_on

2:	.long	trace_hardirqs_on

#endif



#if defined(CONFIG_SH_STANDARD_BIOS)
@@ -264,7 +266,7 @@ ENTRY(address_error_handler) 
restore_all:

	cli

#ifdef CONFIG_TRACE_IRQFLAGS

	mov.l	3f, r0

	mov.l	1f, r0

	jsr	@r0

	 nop

#endif
@@ -309,20 +311,14 @@ restore_all: 
	mov.l	@r15,r15

	rte

	 nop

2:

	mov.l	1f,r8

	mov.l	2f,r9

	jmp	@r9

	 lds	r8,pr



	.align	2

#ifdef CONFIG_TRACE_IRQFLAGS

1:     .long   trace_hardirqs_off

#endif

$current_thread_info:

	.long	__current_thread_info

$cpu_mode:	

	.long	__cpu_mode

#ifdef CONFIG_TRACE_IRQFLAGS

3:	.long	trace_hardirqs_off

#endif

		

! common exception handler

#include "../../entry-common.S"