From 2d7c11bfc91637e5f9bc5f8c9a82aaffcc0e97aa Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Wed, 11 Feb 2009 13:07:53 +0100 Subject: [ARM] 5382/1: unwind: Reorganise the stacktrace support This patch changes the walk_stacktrace and its callers for easier integration of stack unwinding. The arch/arm/kernel/stacktrace.h file is also moved to arch/arm/include/asm/stacktrace.h. Signed-off-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/oprofile/backtrace.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'arch/arm/oprofile') diff --git a/arch/arm/oprofile/backtrace.c b/arch/arm/oprofile/backtrace.c index cefc21c2eee..d805a52b503 100644 --- a/arch/arm/oprofile/backtrace.c +++ b/arch/arm/oprofile/backtrace.c @@ -18,15 +18,14 @@ #include #include #include - -#include "../kernel/stacktrace.h" +#include static int report_trace(struct stackframe *frame, void *d) { unsigned int *depth = d; if (*depth) { - oprofile_add_trace(frame->lr); + oprofile_add_trace(frame->pc); (*depth)--; } @@ -70,9 +69,12 @@ void arm_backtrace(struct pt_regs * const regs, unsigned int depth) struct frame_tail *tail = ((struct frame_tail *) regs->ARM_fp) - 1; if (!user_mode(regs)) { - unsigned long base = ((unsigned long)regs) & ~(THREAD_SIZE - 1); - walk_stackframe(regs->ARM_fp, base, base + THREAD_SIZE, - report_trace, &depth); + struct stackframe frame; + frame.fp = regs->ARM_fp; + frame.sp = regs->ARM_sp; + frame.lr = regs->ARM_lr; + frame.pc = regs->ARM_pc; + walk_stackframe(&frame, report_trace, &depth); return; } -- cgit v1.2.3-18-g5258