-/* Copyright (c) 2005-2016. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2005-2018. 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 <vector>
#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 "src/internal_config.h"
-extern "C" {
-
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_backtrace, xbt, "Backtrace");
+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) */