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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/include/asm/unwind.h
*
* Copyright (C) 2008 ARM Limited
*/
#ifndef __ASM_UNWIND_H
#define __ASM_UNWIND_H
#ifndef __ASSEMBLY__
/* Unwind reason code according the the ARM EABI documents */
enum unwind_reason_code {
URC_OK = 0, /* operation completed successfully */
URC_CONTINUE_UNWIND = 8,
URC_FAILURE = 9 /* unspecified failure of some kind */
};
struct unwind_idx {
unsigned long addr_offset;
unsigned long insn;
};
struct unwind_table {
struct list_head list;
const struct unwind_idx *start;
const struct unwind_idx *origin;
const struct unwind_idx *stop;
unsigned long begin_addr;
unsigned long end_addr;
};
extern struct unwind_table *unwind_table_add(unsigned long start,
unsigned long size,
unsigned long text_addr,
unsigned long text_size);
extern void unwind_table_del(struct unwind_table *tab);
extern void unwind_backtrace(struct pt_regs *regs, struct task_struct *tsk);
#endif /* !__ASSEMBLY__ */
#ifdef CONFIG_ARM_UNWIND
#define UNWIND(code...) code
#else
#define UNWIND(code...)
#endif
#endif /* __ASM_UNWIND_H */
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