-/* Copyright (c) 2005-2016. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2005-2020. 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 <vector>
-
-// Try to detect and use the C++ intanium ABI for name demangling:
-#ifdef __GXX_ABI_VERSION
-#include <cxxabi.h>
-#endif
+#include "src/internal_config.h"
-#include <xbt/backtrace.h>
#include <xbt/backtrace.hpp>
-#include <xbt/log.h>
+#include <xbt/string.hpp>
#include <xbt/sysdep.h>
+#include <xbt/virtu.h>
-#include "src/internal_config.h"
-
-extern "C" {
+#include <cstdio>
+#include <cstdlib>
+#include <sstream>
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_backtrace, xbt, "Backtrace");
+// Try to detect and use the C++ itanium ABI for name demangling:
+#ifdef __GXX_ABI_VERSION
+#include <cxxabi.h>
+#endif
-}
+#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()
{
- 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);
+ simgrid::xbt::Backtrace().display();
}
namespace simgrid {
namespace xbt {
-std::unique_ptr<char, void(*)(void*)> demangle(const char* name)
+std::unique_ptr<char, std::function<void(char*)>> 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
- );
+ 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, void(*)(void*)>(xbt_strdup(name), std::free);
+ return std::unique_ptr<char, std::function<void(char*)>>(xbt_strdup(name), &xbt_free_f);
}
-std::vector<xbt_backtrace_location_t> backtrace()
+class BacktraceImpl {
+#if HAVE_BOOST_STACKTRACE_BACKTRACE || HAVE_BOOST_STACKTRACE_ADDR2LINE
+ const boost::stacktrace::stacktrace st = boost::stacktrace::stacktrace();
+#else
+ const char st[1] = ""; // fallback value
+#endif
+public:
+ std::string resolve() const
+ {
+ std::stringstream ss;
+ ss << st;
+ return ss.str();
+ }
+};
+
+Backtrace::Backtrace() : impl_(std::make_shared<BacktraceImpl>()) {}
+
+std::string Backtrace::resolve() const
{
- 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);
+ 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());
}
-#if HAVE_BACKTRACE && HAVE_EXECINFO_H && HAVE_POPEN && defined(ADDR2LINE)
-# include "src/xbt/backtrace_linux.cpp"
-#else
-# include "src/xbt/backtrace_dummy.cpp"
-#endif
+} // namespace xbt
+} // namespace simgrid