#ifndef _SYS_UNWIND_H

#define _SYS_UNWIND_H

#include <stdint.h>

#include <signal.h>

#ifdef __cplusplus

extern "C" {

#endif

enum __unwind_reason_code {

	__URC_NO_REASON,

	__URC_FOREIGN_EXCEPTION,

	__URC_FATAL_PHASE2,

	__URC_FATAL_PHASE1,

	__URC_NORMAL_STOP,

	__URC_END_OF_STACK,

	__URC_HANDLER_FOUND,

	__URC_INSTALL_CONTEXT,

	__URC_CONTINUE_UNWIND,

};

#define __UA_SEARCH_PHASE       0x01

#define __UA_CLEANUP_PHASE      0x02

#define __UA_HANDLER_FRAME      0x04

#define __UA_FORCE_UNWIND       0x08

#define __UA_END_OF_STACK       0x10

struct __exception_record;

struct __dispatcher_context;

struct __unwind_exception;

struct __unwind_context;

typedef enum __unwind_reason_code(*__unwind_personality_routine)(

	int, int, uintptr_t,

	struct __unwind_exception *,

	struct __unwind_context *);

typedef void (*__unwind_exception_cleanup_routine)(

	enum __unwind_reason_code,

	struct __unwind_exception *);

struct __unwind_exception {

	uintptr_t                               exception_class;

	__unwind_exception_cleanup_routine      exception_cleanup;

	uintptr_t                               __opaque[6];

};

int    __unwind_exception_filter(

	struct __exception_record *,

	void *,

	mcontext_t *,

	struct __dispatcher_context *,

	__unwind_personality_routine);

int    __unwind_exception_handler(

	struct __exception_record *,

	uintptr_t,

	mcontext_t *,

	struct __dispatcher_context *);

int    __unwind_raise_exception(

	struct __unwind_exception *);

void   __unwind_delete_exception(

	struct __unwind_exception *);

void   __unwind_resume(

	struct __unwind_exception *);

int    __unwind_resume_or_rethrow(

	struct __unwind_exception *);

int    __unwind_force(

	struct __unwind_exception *,

	int (*)(

		int, int, uintptr_t,

		struct __unwind_exception *,

		struct __unwind_context *,

		void *),

	void *);

void * __unwind_get_language_specific_data(

	struct __unwind_context *);

int    __unwind_backtrace(

	enum __unwind_reason_code (*)(

		struct __unwind_context *,

		void *),

	void *);

int    __unwind_calltrace();

uintptr_t __unwind_get_ip(const struct __unwind_context *);

void      __unwind_set_ip(struct __unwind_context *, uintptr_t);

uintptr_t __unwind_get_gr(const struct __unwind_context *, int);

void      __unwind_set_gr(struct __unwind_context *, int, uintptr_t);

uintptr_t __unwind_get_data_rel_base(const struct __unwind_context *);

uintptr_t __unwind_get_text_rel_base(const struct __unwind_context *);

uintptr_t __unwind_get_cfa(const struct __unwind_context *);

uintptr_t __unwind_get_ip_info(const struct __unwind_context *, int *);

uintptr_t __unwind_get_region_start(const struct __unwind_context *);

void *    __unwind_find_enclosing_function(const void *);

#ifdef __cplusplus

}

#endif

#endif