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| author | Catalin Marinas <catalin.marinas@arm.com> | 2009-02-11 12:07:53 (GMT) |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-02-12 13:21:17 (GMT) |
| commit | 2d7c11bfc91637e5f9bc5f8c9a82aaffcc0e97aa (patch) | |
| tree | 0bb67dae38b1185089b6c9813769689cb79c5ee3 /arch/arm/include | |
| parent | 67a94c23bb7338c321ae71aa33f8d398c94e1d0c (diff) | |
| download | linux-2d7c11bfc91637e5f9bc5f8c9a82aaffcc0e97aa.tar.xz | |
[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 <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/stacktrace.h | 15 | ||||
| -rw-r--r-- | arch/arm/include/asm/thread_info.h | 2 |
2 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/include/asm/stacktrace.h b/arch/arm/include/asm/stacktrace.h new file mode 100644 index 0000000..4d0a164 --- /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 b9dc8a8..4f88482 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)) |