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Diffstat (limited to 'arch/arm/include/asm/unwind.h')
| -rw-r--r-- | arch/arm/include/asm/unwind.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/arch/arm/include/asm/unwind.h b/arch/arm/include/asm/unwind.h new file mode 100644 index 00000000000..a5edf421005 --- /dev/null +++ b/arch/arm/include/asm/unwind.h @@ -0,0 +1,69 @@ +/* + * arch/arm/include/asm/unwind.h + * + * Copyright (C) 2008 ARM Limited + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#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; + unsigned long insn; +}; + +struct unwind_table { + struct list_head list; + struct unwind_idx *start; + 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); + +#ifdef CONFIG_ARM_UNWIND +extern int __init unwind_init(void); +#else +static inline int __init unwind_init(void) +{ + return 0; +} +#endif + +#endif /* !__ASSEMBLY__ */ + +#ifdef CONFIG_ARM_UNWIND +#define UNWIND(code...) code +#else +#define UNWIND(code...) +#endif + +#endif /* __ASM_UNWIND_H */ |