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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (c) 2017 Amaury Pouly
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "system.h"
#include "lcd.h"
#include <execinfo.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
/* backtrace from the call-site of this function */
void rb_backtrace(int pc, int sp, unsigned *line)
{
/* ignore SP and PC */
(void) pc;
(void) sp;
/* backtrace */
#define BT_BUF_SIZE 100
void *buffer[BT_BUF_SIZE];
int count = backtrace(buffer, BT_BUF_SIZE);
/* print symbols to stdout for debug */
fprintf(stdout, "backtrace:\n");
fflush(stdout);
backtrace_symbols_fd(buffer, count, STDOUT_FILENO);
/* print on screen */
char **strings;
strings = backtrace_symbols(buffer, count);
if(strings == NULL)
{
perror("backtrace_symbols");
return;
}
for(int i = 0; i < count; i++)
{
lcd_putsf(0, (*line)++, " %s", strings[i]);
lcd_update();
}
free(strings);
}
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