-/* Copyright (c) 2005-2016. The SimGrid Team.
- * All rights reserved. */
-
-/* Copyright (c) 2002-2004 Ralf S. Engelschall <rse@engelschall.com> */
-/* Copyright (c) 2002-2004 The OSSP Project <http://www.ossp.org/> */
-/* Copyright (c) 2002-2004 Cable & Wireless <http://www.cw.com/> */
-/* All rights reserved. */
-
-/* This code is inspirated from the OSSP version (as retrieved back in 2004)*/
-/* It was heavily modified to fit the SimGrid framework. */
-
-/* The OSSP version has the following copyright notice:
-** OSSP ex - Exception Handling
-** Copyright (c) 2002-2004 Ralf S. Engelschall <rse@engelschall.com>
-** Copyright (c) 2002-2004 The OSSP Project <http://www.ossp.org/>
-** Copyright (c) 2002-2004 Cable & Wireless <http://www.cw.com/>
-**
-** This file is part of OSSP ex, an exception handling library
-** which can be found at http://www.ossp.org/pkg/lib/ex/.
-**
-** Permission to use, copy, modify, and distribute this software for
-** any purpose with or without fee is hereby granted, provided that
-** the above copyright notice and this permission notice appear in all
-** copies.
-**
-** THIS SOFTWARE IS PROVIDED `AS IS'' AND ANY EXPRESSED 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 AUTHORS AND COPYRIGHT HOLDERS AND THEIR
-** CONTRIBUTORS 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.
- */
-
-/* The extensions made for the SimGrid project can either be distributed */
-/* under the same license, or under the LGPL v2.1 */
+/* Copyright (c) 2005-2017. The SimGrid Team. All rights reserved. */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
#include <cstddef>
+#include <cstdlib>
+#include <cstring>
-#include <xbt/log.h>
+#include <vector>
+
+// Try to detect and use the C++ intanium ABI for name demangling:
+#ifdef __GXX_ABI_VERSION
+#include <cxxabi.h>
+#endif
+
+#include "simgrid/simix.h" /* SIMIX_process_self_get_name() */
#include <xbt/backtrace.h>
+#include <xbt/backtrace.hpp>
+#include <xbt/log.h>
+#include <xbt/sysdep.h>
#include "src/internal_config.h"
}
-/** \brief show the backtrace of the current point (lovely while debuging) */
-void xbt_backtrace_display_current(void)
+static bool startWith(std::string str, const char* prefix)
+{
+ return strncmp(str.c_str(), prefix, strlen(prefix)) == 0;
+}
+
+void xbt_backtrace_display(xbt_backtrace_location_t* loc, std::size_t count)
+{
+#ifdef HAVE_BACKTRACE
+ std::vector<std::string> backtrace = simgrid::xbt::resolveBacktrace(loc, count);
+ if (backtrace.empty()) {
+ fprintf(stderr, "(backtrace not set)\n");
+ return;
+ }
+ fprintf(stderr, "Backtrace (displayed in process %s):\n", SIMIX_process_self_get_name());
+ for (std::string const& s : backtrace) {
+ if (startWith(s, "xbt_backtrace_display_current"))
+ continue;
+
+ std::fprintf(stderr, "---> '%s'\n", s.c_str());
+ if (startWith(s, "SIMIX_simcall_handle") ||
+ startWith(s, "simgrid::xbt::MainFunction") /* main used with thread factory */)
+ break;
+ }
+#else
+ XBT_ERROR("Cannot display backtrace when compiled without libunwind.");
+#endif
+}
+
+/** @brief show the backtrace of the current point (lovely while debugging) */
+void xbt_backtrace_display_current()
{
const std::size_t size = 10;
xbt_backtrace_location_t bt[size];
xbt_backtrace_display(bt, used);
}
+namespace simgrid {
+namespace xbt {
+
+std::unique_ptr<char, void(*)(void*)> demangle(const char* name)
+{
+#ifdef __GXX_ABI_VERSION
+ int status;
+ auto res = std::unique_ptr<char, void(*)(void*)>(
+ abi::__cxa_demangle(name, nullptr, nullptr, &status),
+ std::free
+ );
+ if (res != nullptr)
+ return res;
+ // We did not manage to resolve this. Probably because this is not a mangled symbol:
+#endif
+ // Return the symbol:
+ return std::unique_ptr<char, void(*)(void*)>(xbt_strdup(name), std::free);
+}
+
+std::vector<xbt_backtrace_location_t> backtrace()
+{
+ const std::size_t size = 10;
+ xbt_backtrace_location_t loc[size];
+ size_t used = xbt_backtrace_current(loc, size);
+ return std::vector<xbt_backtrace_location_t>(loc, loc + used);
+}
+
+}
+}
+
#if HAVE_BACKTRACE && HAVE_EXECINFO_H && HAVE_POPEN && defined(ADDR2LINE)
# include "src/xbt/backtrace_linux.cpp"
#else
