mirror of
https://gitee.com/open-loongarch/linux-5.10.git
synced 2026-10-28 22:17:12 +08:00
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Most of this ideas comes from x86.
|
|
*
|
|
* Copyright (C) 2020 Loongson Technology Corporation Limited
|
|
*/
|
|
#ifndef _ASM_UNWIND_H
|
|
#define _ASM_UNWIND_H
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/sched.h>
|
|
|
|
#include <asm/ptrace.h>
|
|
#include <asm/stacktrace.h>
|
|
|
|
struct unwind_state {
|
|
struct stack_info stack_info;
|
|
struct task_struct *task;
|
|
int graph_idx;
|
|
#if defined(CONFIG_UNWINDER_PROLOGUE)
|
|
unsigned long sp, pc, ra;
|
|
bool enable;
|
|
bool first;
|
|
#elif defined(CONFIG_UNWINDER_ORC)
|
|
unsigned long sp, pc, fp, ra;
|
|
#else /* CONFIG_UNWINDER_GUESS */
|
|
unsigned long sp, pc;
|
|
bool first;
|
|
#endif
|
|
bool error;
|
|
};
|
|
|
|
void unwind_start(struct unwind_state *state, struct task_struct *task,
|
|
struct pt_regs *regs);
|
|
bool unwind_next_frame(struct unwind_state *state);
|
|
unsigned long unwind_get_return_address(struct unwind_state *state);
|
|
|
|
static inline bool unwind_done(struct unwind_state *state)
|
|
{
|
|
return state->stack_info.type == STACK_TYPE_UNKNOWN;
|
|
}
|
|
|
|
static inline bool unwind_error(struct unwind_state *state)
|
|
{
|
|
return state->error;
|
|
}
|
|
|
|
#ifdef CONFIG_UNWINDER_ORC
|
|
void unwind_init(void);
|
|
void unwind_module_init(struct module *mod, void *orc_ip, size_t orc_ip_size,
|
|
void *orc, size_t orc_size);
|
|
#else
|
|
static inline void unwind_init(void) {}
|
|
static inline void unwind_module_init(struct module *mod, void *orc_ip,
|
|
size_t orc_ip_size, void *orc, size_t orc_size) {}
|
|
#endif /* CONFIG_UNWINDER_ORC */
|
|
#endif /* _ASM_UNWIND_H */
|