[mirror_ubuntu-artful-kernel.git] / arch / arm / include / asm / stacktrace.h

#ifndef __ASM_STACKTRACE_H
#define __ASM_STACKTRACE_H

#include <asm/ptrace.h>

struct stackframe {
	/*
	 * FP member should hold R7 when CONFIG_THUMB2_KERNEL is enabled
	 * and R11 otherwise.
	 */
	unsigned long fp;
	unsigned long sp;
	unsigned long lr;
	unsigned long pc;
};

static __always_inline
void arm_get_current_stackframe(struct pt_regs *regs, struct stackframe *frame)
{
		frame->fp = frame_pointer(regs);
		frame->sp = regs->ARM_sp;
		frame->lr = regs->ARM_lr;
		frame->pc = regs->ARM_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 */
Commit	Line	Data
2d7c11bf CM	1	#ifndef __ASM_STACKTRACE_H
	2	#define __ASM_STACKTRACE_H
	3
9865f1d4 NB	4	#include <asm/ptrace.h>
9865f1d4 NB	5
2d7c11bf	6	struct stackframe {
9865f1d4 NB	7	/*
	8	* FP member should hold R7 when CONFIG_THUMB2_KERNEL is enabled
	9	* and R11 otherwise.
	10	*/
2d7c11bf CM	11	unsigned long fp;
	12	unsigned long sp;
	13	unsigned long lr;
	14	unsigned long pc;
	15	};
	16
9865f1d4 NB	17	static __always_inline
	18	void arm_get_current_stackframe(struct pt_regs regs, struct stackframe frame)
	19	{
	20	frame->fp = frame_pointer(regs);
	21	frame->sp = regs->ARM_sp;
	22	frame->lr = regs->ARM_lr;
	23	frame->pc = regs->ARM_pc;
	24	}
	25
2d7c11bf CM	26	extern int unwind_frame(struct stackframe *frame);
	27	extern void walk_stackframe(struct stackframe *frame,
	28	int (fn)(struct stackframe , void ), void data);
	29
	30	#endif /* __ASM_STACKTRACE_H */