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authorMichael Ellerman <michael@ellerman.id.au>2012-10-09 04:20:35 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-11-15 12:59:55 +1100
commitc4de38093ed9fe94fa35c3adb14afc40bf05e1da (patch)
tree3c54609889d9cf87e5ea00c1374a787f07c7c89c /arch/powerpc/xmon
parentc5c5714d5093e677ec962921210eae14156f7179 (diff)
downloadop-kernel-dev-c4de38093ed9fe94fa35c3adb14afc40bf05e1da.zip
op-kernel-dev-c4de38093ed9fe94fa35c3adb14afc40bf05e1da.tar.gz
powerpc/xmon: Use STACK_FRAME_OVERHEAD in xmon_show_stack()
We use STACK_FRAME_OVERHEAD in the exception vectors to establish the exception frame, so it should be good enough to use here. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/xmon')
-rw-r--r--arch/powerpc/xmon/xmon.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index abf6be4..d940234 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -1286,12 +1286,6 @@ static int xmon_depth_to_print = 64;
#define LRSAVE_OFFSET (STACK_FRAME_LR_SAVE * sizeof(unsigned long))
#define MARKER_OFFSET (STACK_FRAME_MARKER * sizeof(unsigned long))
-#ifdef __powerpc64__
-#define REGS_OFFSET 0x70
-#else
-#define REGS_OFFSET 16
-#endif
-
static void xmon_show_stack(unsigned long sp, unsigned long lr,
unsigned long pc)
{
@@ -1355,10 +1349,10 @@ static void xmon_show_stack(unsigned long sp, unsigned long lr,
an exception frame. */
if (mread(sp + MARKER_OFFSET, &marker, sizeof(unsigned long))
&& marker == STACK_FRAME_REGS_MARKER) {
- if (mread(sp + REGS_OFFSET, &regs, sizeof(regs))
+ if (mread(sp + STACK_FRAME_OVERHEAD, &regs, sizeof(regs))
!= sizeof(regs)) {
printf("Couldn't read registers at %lx\n",
- sp + REGS_OFFSET);
+ sp + STACK_FRAME_OVERHEAD);
break;
}
printf("--- Exception: %lx %s at ", regs.trap,
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