ref/backtrace__internal_8h_source.html

#ifndef __LIBDRAGON_BACKTRACE_INTERNAL_H

#define __LIBDRAGON_BACKTRACE_INTERNAL_H


typedef enum {

    BT_FUNCTION,

    BT_FUNCTION_FRAMEPOINTER,

    BT_EXCEPTION,

    BT_LEAF

} bt_func_type;


typedef struct {

    bt_func_type type;

    int stack_size;

    int ra_offset;

    int fp_offset;

} bt_func_t;


bool __bt_analyze_func(bt_func_t *func, uint32_t *ptr, uint32_t func_start, bool from_exception);


int __backtrace_from(void **buffer, int size, uint32_t *pc, uint32_t *sp, uint32_t *fp, uint32_t *exception_ra);


char* __symbolize(void *vaddr, char *buf, int size);


#endif

__bt_analyze_func
bool __bt_analyze_func(bt_func_t *func, uint32_t *ptr, uint32_t func_start, bool from_exception)
Analyze a function to find out its stack frame layout and properties (useful for backtracing).
Definition backtrace.c:417

__backtrace_from
int __backtrace_from(void **buffer, int size, uint32_t *pc, uint32_t *sp, uint32_t *fp, uint32_t *exception_ra)
Like backtrace, but start from an arbitrary context. Useful for backtracing a thread.
Definition backtrace.c:649

__symbolize
char * __symbolize(void *vaddr, char *buf, int size)
Return the symbol associated to a given address.
Definition backtrace.c:341

bt_func_t
Description of a function for the purpose of backtracing (filled by __bt_analyze_func)
Definition backtrace_internal.h:13

bt_func_t::stack_size
int stack_size
Size of the stack frame.
Definition backtrace_internal.h:15

bt_func_t::ra_offset
int ra_offset
Offset of the return address from the top of the stack frame.
Definition backtrace_internal.h:16

bt_func_t::fp_offset
int fp_offset
Offset of the saved fp from the top of the stack frame; this is != 0 only if the function modifies fp...
Definition backtrace_internal.h:17

bt_func_t::type
bt_func_type type
Type of the function.
Definition backtrace_internal.h:14