mirror of git://gcc.gnu.org/git/gcc.git
93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/* print.c -- Print the current backtrace.
|
|
Copyright (C) 2012-2014 Free Software Foundation, Inc.
|
|
Written by Ian Lance Taylor, Google.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are
|
|
met:
|
|
|
|
(1) Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
|
|
(2) Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in
|
|
the documentation and/or other materials provided with the
|
|
distribution.
|
|
|
|
(3) The name of the author may not be used to
|
|
endorse or promote products derived from this software without
|
|
specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
|
|
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
|
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE. */
|
|
|
|
#include "config.h"
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
|
|
#include "backtrace.h"
|
|
#include "internal.h"
|
|
|
|
/* Passed to callbacks. */
|
|
|
|
struct print_data
|
|
{
|
|
struct backtrace_state *state;
|
|
FILE *f;
|
|
};
|
|
|
|
/* Print one level of a backtrace. */
|
|
|
|
static int
|
|
print_callback (void *data, uintptr_t pc, const char *filename, int lineno,
|
|
const char *function)
|
|
{
|
|
struct print_data *pdata = (struct print_data *) data;
|
|
|
|
fprintf (pdata->f, "0x%lx %s\n\t%s:%d\n",
|
|
(unsigned long) pc,
|
|
function == NULL ? "???" : function,
|
|
filename == NULL ? "???" : filename,
|
|
lineno);
|
|
return 0;
|
|
}
|
|
|
|
/* Print errors to stderr. */
|
|
|
|
static void
|
|
error_callback (void *data, const char *msg, int errnum)
|
|
{
|
|
struct print_data *pdata = (struct print_data *) data;
|
|
|
|
if (pdata->state->filename != NULL)
|
|
fprintf (stderr, "%s: ", pdata->state->filename);
|
|
fprintf (stderr, "libbacktrace: %s", msg);
|
|
if (errnum > 0)
|
|
fprintf (stderr, ": %s", strerror (errnum));
|
|
fputc ('\n', stderr);
|
|
}
|
|
|
|
/* Print a backtrace. */
|
|
|
|
void
|
|
backtrace_print (struct backtrace_state *state, int skip, FILE *f)
|
|
{
|
|
struct print_data data;
|
|
|
|
data.state = state;
|
|
data.f = f;
|
|
backtrace_full (state, skip + 1, print_callback, error_callback,
|
|
(void *) &data);
|
|
}
|