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/include/asm/stacktrace.h | 15 +++++++++++++++ arch/arm/include/asm/thread_info.h | 2 ++ 2 files changed, 17 insertions(+) create mode 100644 arch/arm/include/asm/stacktrace.h (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/stacktrace.h b/arch/arm/include/asm/stacktrace.h new file mode 100644 index 00000000000..4d0a16441b2 --- /dev/null +++ b/arch/arm/include/asm/stacktrace.h @@ -0,0 +1,15 @@ +#ifndef __ASM_STACKTRACE_H +#define __ASM_STACKTRACE_H + +struct stackframe { + unsigned long fp; + unsigned long sp; + unsigned long lr; + unsigned long pc; +}; + +extern int unwind_frame(struct stackframe *frame); +extern void walk_stackframe(struct stackframe *frame, + int (*fn)(struct stackframe *, void *), void *data); + +#endif /* __ASM_STACKTRACE_H */ diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h index b9dc8a84257..4f8848260ee 100644 --- a/arch/arm/include/asm/thread_info.h +++ b/arch/arm/include/asm/thread_info.h @@ -99,6 +99,8 @@ static inline struct thread_info *current_thread_info(void) #define thread_saved_pc(tsk) \ ((unsigned long)(task_thread_info(tsk)->cpu_context.pc)) +#define thread_saved_sp(tsk) \ + ((unsigned long)(task_thread_info(tsk)->cpu_context.sp)) #define thread_saved_fp(tsk) \ ((unsigned long)(task_thread_info(tsk)->cpu_context.fp)) -- cgit v1.2.3