1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __ASM_STACKTRACE_H
 3#define __ASM_STACKTRACE_H
 4
 5#include <asm/ptrace.h>
 6
 7struct stackframe {
 8	/*
 9	 * FP member should hold R7 when CONFIG_THUMB2_KERNEL is enabled
10	 * and R11 otherwise.
11	 */
12	unsigned long fp;
13	unsigned long sp;
14	unsigned long lr;
15	unsigned long pc;
16};
17
18static __always_inline
19void arm_get_current_stackframe(struct pt_regs *regs, struct stackframe *frame)
20{
21		frame->fp = frame_pointer(regs);
22		frame->sp = regs->ARM_sp;
23		frame->lr = regs->ARM_lr;
24		frame->pc = regs->ARM_pc;
25}
26
27extern int unwind_frame(struct stackframe *frame);
28extern void walk_stackframe(struct stackframe *frame,
29			    int (*fn)(struct stackframe *, void *), void *data);
30
31#endif	/* __ASM_STACKTRACE_H */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __ASM_STACKTRACE_H
 3#define __ASM_STACKTRACE_H
 4
 5#include <asm/ptrace.h>
 6
 7struct stackframe {
 8	/*
 9	 * FP member should hold R7 when CONFIG_THUMB2_KERNEL is enabled
10	 * and R11 otherwise.
11	 */
12	unsigned long fp;
13	unsigned long sp;
14	unsigned long lr;
15	unsigned long pc;
16};
17
18static __always_inline
19void arm_get_current_stackframe(struct pt_regs *regs, struct stackframe *frame)
20{
21		frame->fp = frame_pointer(regs);
22		frame->sp = regs->ARM_sp;
23		frame->lr = regs->ARM_lr;
24		frame->pc = regs->ARM_pc;
25}
26
27extern int unwind_frame(struct stackframe *frame);
28extern void walk_stackframe(struct stackframe *frame,
29			    int (*fn)(struct stackframe *, void *), void *data);
30
31#endif	/* __ASM_STACKTRACE_H */