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- /* SPDX-License-Identifier: GPL-2.0 */
- #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 */
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