| /* 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 */ |