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/*
Copyright (C) 2009 RedHat inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef BACKTRACE_H
#define BACKTRACE_H
#include <stdio.h>
#include <stdbool.h>
struct frame
{
/* Function name, or NULL. */
char *function;
/* Frame number. */
int number;
/* Name of the source file, or binary file, or NULL. */
char *sourcefile;
bool signal_handler_called;
/* Sibling frame, or NULL if this is the last frame in a thread. */
struct frame *next;
};
struct thread
{
int number;
struct frame *frames;
/* Sibling thread, or NULL if this is the last thread in a backtrace. */
struct thread *next;
};
struct backtrace
{
struct thread *threads;
/*
* The frame where the crash happened according to GDB.
* It might be that we can not tell to which thread this frame belongs,
* because all threads end with mutually indistinguishable frames.
*/
struct frame *crash;
};
extern struct frame *frame_new();
extern void frame_free(struct frame *f);
extern struct frame *frame_add_sibling(struct frame *a, struct frame *b);
extern struct thread *thread_new();
extern void thread_free(struct thread *t);
extern struct thread *thread_add_sibling(struct thread *a, struct thread *b);
extern struct backtrace *backtrace_new();
extern void backtrace_free(struct backtrace *bt);
/* Prints how internal backtrace representation looks to stdout. */
extern void backtrace_print_tree(struct backtrace *backtrace, bool verbose);
/*
* Frees all threads except the one provided as parameters.
* It does not check whether one is a member of backtrace.
* Caller must know that.
*/
extern void backtrace_remove_threads_except_one(struct backtrace *backtrace,
struct thread *one);
/*
* Search all threads and tries to find the one that caused the crash.
* It might return NULL if the thread cannot be determined.
*/
extern struct thread *backtrace_find_crash_thread(struct backtrace *backtrace);
extern void backtrace_limit_frame_depth(struct backtrace *backtrace, int depth);
/*
* Exit handlers are all stack frames above __run_exit_handlers()
*/
extern void backtrace_remove_exit_handlers(struct backtrace *backtrace);
/*
* Removes frames known as not causing crash, but that are often
* a part of a backtrace.
*/
extern void backtrace_remove_noncrash_frames(struct backtrace *backtrace);
/* Defined in parser.y. */
extern struct backtrace *do_parse(char *input, bool debug_parser, bool debug_scanner);
#endif
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