diff options
| author | Kumar Gala <galak@kernel.crashing.org> | 2008-04-30 20:44:53 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-05-14 22:31:37 +1000 |
| commit | 663276b7c6340e755ed62bed67a2b96f4fc3d513 (patch) | |
| tree | 53e559feb737fce86ad4790f979d1a80a4564266 | |
| parent | 7a10174eeafe737f3ccfcece5bdff749c3b044e0 (diff) | |
[POWERPC] Set lower flag bits in regs->trap to indicate debug level exception
We use the low bits of regs->trap as flag bits. We already indicate
critical and machine check level exceptions via this mechanism. Extend it
to indicate debug level exceptions.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
| -rw-r--r-- | arch/powerpc/kernel/head_booke.h | 2 | ||||
| -rw-r--r-- | include/asm-powerpc/ptrace.h | 1 |
2 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/head_booke.h b/arch/powerpc/kernel/head_booke.h index aefafc6330c..721faef8709 100644 --- a/arch/powerpc/kernel/head_booke.h +++ b/arch/powerpc/kernel/head_booke.h @@ -272,7 +272,7 @@ label: /* continue normal handling for a critical exception... */ \ 2: mfspr r4,SPRN_DBSR; \ addi r3,r1,STACK_FRAME_OVERHEAD; \ - EXC_XFER_TEMPLATE(DebugException, 0x2002, (MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)), NOCOPY, debug_transfer_to_handler, ret_from_debug_exc) + EXC_XFER_TEMPLATE(DebugException, 0x2008, (MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)), NOCOPY, debug_transfer_to_handler, ret_from_debug_exc) #define DEBUG_CRIT_EXCEPTION \ START_EXCEPTION(DebugCrit); \ diff --git a/include/asm-powerpc/ptrace.h b/include/asm-powerpc/ptrace.h index 39023dde1cc..38d87e5e569 100644 --- a/include/asm-powerpc/ptrace.h +++ b/include/asm-powerpc/ptrace.h @@ -119,6 +119,7 @@ extern int ptrace_put_reg(struct task_struct *task, int regno, #ifndef __powerpc64__ #define IS_CRITICAL_EXC(regs) (((regs)->trap & 2) != 0) #define IS_MCHECK_EXC(regs) (((regs)->trap & 4) != 0) +#define IS_DEBUG_EXC(regs) (((regs)->trap & 8) != 0) #endif /* ! __powerpc64__ */ #define TRAP(regs) ((regs)->trap & ~0xF) #ifdef __powerpc64__ |