1 /* Copyright (c) 2005-2020. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "src/internal_config.h"
8 #include <xbt/backtrace.hpp>
9 #include <xbt/string.hpp>
10 #include <xbt/sysdep.h>
11 #include <xbt/virtu.h>
17 // Try to detect and use the C++ itanium ABI for name demangling:
18 #ifdef __GXX_ABI_VERSION
22 #if HAVE_BOOST_STACKTRACE_BACKTRACE
23 #define BOOST_STACKTRACE_USE_BACKTRACE
24 #include <boost/stacktrace.hpp>
25 #elif HAVE_BOOST_STACKTRACE_ADDR2LINE
26 #define BOOST_STACKTRACE_USE_ADDR2LINE
27 #include <boost/stacktrace.hpp>
30 /** @brief show the backtrace of the current point (lovely while debugging) */
31 void xbt_backtrace_display_current()
33 simgrid::xbt::Backtrace().display();
39 std::unique_ptr<char, std::function<void(char*)>> demangle(const char* name)
41 #ifdef __GXX_ABI_VERSION
43 std::unique_ptr<char, std::function<void(char*)>> res(abi::__cxa_demangle(name, nullptr, nullptr, &status),
47 // We did not manage to resolve this. Probably because this is not a mangled symbol:
50 return std::unique_ptr<char, std::function<void(char*)>>(xbt_strdup(name), &xbt_free_f);
54 #if HAVE_BOOST_STACKTRACE_BACKTRACE || HAVE_BOOST_STACKTRACE_ADDR2LINE
55 const boost::stacktrace::stacktrace st = boost::stacktrace::stacktrace();
57 const char st[1] = ""; // fallback value
60 std::string resolve() const
68 Backtrace::Backtrace() : impl_(std::make_shared<BacktraceImpl>()) {}
70 std::string Backtrace::resolve() const
72 return impl_->resolve();
75 void Backtrace::display() const
77 std::string backtrace = resolve();
78 std::fprintf(stderr, "Backtrace (displayed in actor %s):\n%s\n", xbt_procname(),
79 backtrace.empty() ? "(backtrace not set -- did you install Boost.Stacktrace?)" : backtrace.c_str());
83 } // namespace simgrid