-/* Copyright (c) 2005-2016. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2005-2021. The SimGrid Team. All rights reserved. */
-#include <cstddef>
-
-#include <xbt/log.h>
-#include <xbt/backtrace.h>
+/* 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 "src/internal_config.h"
-extern "C" {
+#include <xbt/backtrace.hpp>
+#include <xbt/string.hpp>
+#include <xbt/sysdep.h>
+#include <xbt/virtu.h>
+
+#include <cstdio>
+#include <cstdlib>
+#include <sstream>
+
+// Try to detect and use the C++ itanium ABI for name demangling:
+#ifdef __GXX_ABI_VERSION
+#include <cxxabi.h>
+#endif
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_backtrace, xbt, "Backtrace");
+#if HAVE_BOOST_STACKTRACE_BACKTRACE
+#define BOOST_STACKTRACE_USE_BACKTRACE
+#include <boost/stacktrace.hpp>
+#elif HAVE_BOOST_STACKTRACE_ADDR2LINE
+#define BOOST_STACKTRACE_USE_ADDR2LINE
+#include <boost/stacktrace.hpp>
+#endif
+/** @brief show the backtrace of the current point (lovely while debugging) */
+void xbt_backtrace_display_current()
+{
+ simgrid::xbt::Backtrace().display();
}
-/** @brief show the backtrace of the current point (lovely while debuging) */
-void xbt_backtrace_display_current(void)
+namespace simgrid {
+namespace xbt {
+
+std::unique_ptr<char, std::function<void(char*)>> demangle(const char* name)
{
- const std::size_t size = 10;
- xbt_backtrace_location_t bt[size];
- size_t used = xbt_backtrace_current(bt, size);
- xbt_backtrace_display(bt, used);
+#ifdef __GXX_ABI_VERSION
+ int status;
+ std::unique_ptr<char, std::function<void(char*)>> res(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, std::function<void(char*)>>(xbt_strdup(name), &xbt_free_f);
}
-#if HAVE_BACKTRACE && HAVE_EXECINFO_H && HAVE_POPEN && defined(ADDR2LINE)
-# include "src/xbt/backtrace_linux.cpp"
+class BacktraceImpl {
+#if HAVE_BOOST_STACKTRACE_BACKTRACE || HAVE_BOOST_STACKTRACE_ADDR2LINE
+ const boost::stacktrace::stacktrace st = boost::stacktrace::stacktrace();
+public:
+ std::string resolve() const
+ {
+ std::stringstream ss;
+ ss << st;
+ return ss.str();
+ }
#else
-# include "src/xbt/backtrace_dummy.cpp"
+public:
+ std::string resolve() const { return ""; } // fallback value
#endif
+};
+
+Backtrace::Backtrace() : impl_(std::make_shared<BacktraceImpl>()) {}
+
+std::string Backtrace::resolve() const
+{
+ return impl_->resolve();
+}
+
+void Backtrace::display() const
+{
+ std::string backtrace = resolve();
+ std::fprintf(stderr, "Backtrace (displayed in actor %s):\n%s\n", xbt_procname(),
+ backtrace.empty() ? "(backtrace not set -- did you install Boost.Stacktrace?)" : backtrace.c_str());
+}
+
+} // namespace xbt
+} // namespace simgrid
