mirror of
https://git.code.sf.net/p/quake/quakeforge
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76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
/*
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backtrace.c
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Support for dumping backtrace information.
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Copyright (C) 2023 Bill Currie <bill@taniwha.org>
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Author: Bill Currie <bill@taniwha.org>
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Date: 2023/12/04
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <inttypes.h>
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#include <string.h>
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#include <backtrace.h>
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#include "QF/backtrace.h"
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#include "QF/dstring.h"
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#include "QF/sys.h"
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static struct backtrace_state *bt_state;
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static void bt_error (void *data, const char *msg, int errnum)
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{
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if (errnum > 0) {
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Sys_Printf ("%s: %s\n", msg, strerror (errnum));
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} else if (errnum < 0) {
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Sys_Printf ("%s: no symbol table\n", msg);
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}
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}
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void
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BT_Init (const char *filename)
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{
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bt_state = backtrace_create_state (filename, 1, bt_error, 0);
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}
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static int
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bt_print (void *data, uintptr_t pc, const char *fname, int lineno,
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const char *func)
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{
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dstring_t *str = data;
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dasprintf (str, "(%"PRIxPTR") %s:%s:%d", pc, func, fname, lineno);
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return 0;
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}
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void
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BT_pcInfo (dstring_t *str, uintptr_t pc)
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{
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if (bt_state) {
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backtrace_pcinfo (bt_state, pc, bt_print, 0, str);
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} else {
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dasprintf (str, "(%"PRIxPTR")", pc);
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}
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}
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