Commit 471c70ff authored by Torez Smith's avatar Torez Smith Committed by Josh Boyer

powerpc/booke: Add Stack Marking support to Booke Exception Prolog

This patch adds a marker to the exception stack frame to aid in debugging.
It's already inserted on other platforms and xmon recognizes it and
identifies exception frames when showing stack traces.
Signed-off-by: default avatarTorez Smith  <lnxtorez@linux.vnet.ibm.com>
Signed-off-by: default avatarDave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: default avatarJosh Boyer <jwboyer@linux.vnet.ibm.com>
parent cb694769
#ifndef __HEAD_BOOKE_H__
#define __HEAD_BOOKE_H__
#include <asm/ptrace.h> /* for STACK_FRAME_REGS_MARKER */
/*
* Macros used for common Book-e exception handling
*/
......@@ -48,6 +49,9 @@
stw r10,0(r11); \
rlwinm r9,r9,0,14,12; /* clear MSR_WE (necessary?) */\
stw r0,GPR0(r11); \
lis r10, STACK_FRAME_REGS_MARKER@ha;/* exception frame marker */ \
addi r10, r10, STACK_FRAME_REGS_MARKER@l; \
stw r10, 8(r11); \
SAVE_4GPRS(3, r11); \
SAVE_2GPRS(7, r11)
......
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