dl-fldigi/src/misc/stacktrace.cxx

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2.0 KiB
C++

// ----------------------------------------------------------------------------
// stacktrace.cxx: portable stack trace and error handlers
//
// Copyright (C) 2007
// Stelios Bounanos, M0GLD
//
// This file is part of fldigi.
//
// fldigi 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 3 of the License, or
// (at your option) any later version.
//
// fldigi 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, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include <config.h>
#include <iostream>
#include <cstdlib>
#if HAVE_EXECINFO_H
# include <execinfo.h>
#endif
#include "stacktrace.h"
#define MAX_STACK_FRAMES 64
void pstack(int fd, unsigned skip)
{
#if HAVE_EXECINFO_H
void* stack[MAX_STACK_FRAMES];
++skip;
backtrace_symbols_fd(stack + skip, backtrace(stack, MAX_STACK_FRAMES) - skip, fd);
#endif
}
void pstack_maybe(void)
{
static bool trace = getenv("TRACE_LOCKS");
if (trace)
pstack(STDERR_FILENO, 1);
}
void diediedie(void)
{
std::cerr << "\nAborting " PACKAGE
" due to a fatal error.\nPlease report this to "
PACKAGE_BUGREPORT << "\n\n";
pstack(STDERR_FILENO);
extern std::string version_text;
std::cerr << "\nVersion information:\n" << version_text;
abort();
}
void handle_unexpected(void)
{
std::cerr << "Uncaught exception. Not again!\n";
std::terminate();
}
// this may not give us anything useful, but we can try...
void handle_signal(int s)
{
std::cerr << "Caught signal " << s;
diediedie();
}