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Diffstat (limited to 'arch/arm/include/asm/unwind.h')
| -rw-r--r-- | arch/arm/include/asm/unwind.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/arm/include/asm/unwind.h b/arch/arm/include/asm/unwind.h new file mode 100644 index 000000000..b51f85417 --- /dev/null +++ b/arch/arm/include/asm/unwind.h @@ -0,0 +1,51 @@ +/* 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; + struct list_head mod_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, + const char *loglvl); + +#endif /* !__ASSEMBLY__ */ + +#ifdef CONFIG_ARM_UNWIND +#define UNWIND(code...) code +#else +#define UNWIND(code...) +#endif + +#endif /* __ASM_UNWIND_H */ |