StackTrace.cc

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//=============================================================================
//  Computational Process Networks class library
//  Copyright (C) 1997-2006  Gregory E. Allen and The University of Texas
//
//  This library is free software; you can redistribute it and/or modify it
//  under the terms of the GNU Library General Public License as published
//  by the Free Software Foundation; either version 2 of the License, or
//  (at your option) any later version.
//
//  This library 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
//  Library General Public License for more details.
//
//  The GNU Public License is available in the file LICENSE, or you
//  can write to the Free Software Foundation, Inc., 59 Temple Place -
//  Suite 330, Boston, MA 02111-1307, USA, or you can find it on the
//  World Wide Web at http://www.fsf.org.
//=============================================================================
#include "common_priv.h"
#include <cpn/utils/StackTrace.h>
#include <execinfo.h>
#include <cstdlib>
#include <cstdio>
#include <sstream>
#include <cstdio>

void PrintStack() {
    void* stack[STACKTRACE_MAXTRACE];
    size_t size = backtrace(stack, STACKTRACE_MAXTRACE);
    backtrace_symbols_fd(stack, size, 2);
}

std::string GetStack(unsigned ignore) {
    void* stack[STACKTRACE_MAXTRACE];
    size_t size = backtrace(stack, STACKTRACE_MAXTRACE);
    char **bt = backtrace_symbols(stack, size);
    if (!bt) {
        perror("backtrace_symbols");
        return "";
    }
    std::ostringstream oss;
    for (unsigned i = ignore; i < size; ++i) {
        oss << bt[i] << '\n';
    }
    free(bt);
    return oss.str();
}