diff options
| author | Yoshinori Sato <ysato@users.sourceforge.jp> | 2006-12-12 09:11:45 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2006-12-12 09:11:45 +0900 |
| commit | e9cfc147df99790a7d260e9d20b865fa31ec56da (patch) | |
| tree | 97a7428d70e2c6afe81a084a929ac15999e8ed13 | |
| parent | b641fe016a29fe2c0c7b0d717a5918e3f067a44f (diff) | |
sh: Fixup SH-2 BUG() trap handling.
This adds in support for the BUG() trap on SH-2.
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| -rw-r--r-- | arch/sh/kernel/cpu/sh2/entry.S | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/arch/sh/kernel/cpu/sh2/entry.S b/arch/sh/kernel/cpu/sh2/entry.S index 34d51b3745e..d51fa5e9904 100644 --- a/arch/sh/kernel/cpu/sh2/entry.S +++ b/arch/sh/kernel/cpu/sh2/entry.S @@ -177,15 +177,21 @@ interrupt_entry: 7: .long do_IRQ 8: .long do_exception_error -trap_entry: - add #-0x10,r9 +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" |