1 /* Copyright (c) 2005-2022. 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 #if HAVE_BOOST_STACKTRACE_BACKTRACE
18 #define BOOST_STACKTRACE_USE_BACKTRACE
19 #include <boost/stacktrace.hpp>
20 #include <boost/stacktrace/detail/frame_decl.hpp>
21 #elif HAVE_BOOST_STACKTRACE_ADDR2LINE
22 #define BOOST_STACKTRACE_USE_ADDR2LINE
23 #include <boost/stacktrace.hpp>
24 #include <boost/stacktrace/detail/frame_decl.hpp>
27 /** @brief show the backtrace of the current point (lovely while debugging) */
28 void xbt_backtrace_display_current()
30 simgrid::xbt::Backtrace().display();
33 namespace simgrid::xbt {
36 #if HAVE_BOOST_STACKTRACE_BACKTRACE || HAVE_BOOST_STACKTRACE_ADDR2LINE
37 const boost::stacktrace::stacktrace st;
40 std::string resolve() const
47 for (boost::stacktrace::frame const& frame : st) {
48 const std::string frame_name = frame.name();
50 if (frame_name.rfind("simgrid::xbt::MainFunction", 0) == 0 ||
51 frame_name.rfind("simgrid::kernel::context::Context::operator()()", 0) == 0)
53 ss << " -> #" << frame_count++ << " ";
54 if (xbt_log_no_loc) // Don't display file source and line if so
55 ss << (frame_name.empty() ? "(debug info not found and log:no_loc activated)" : frame_name) << "\n";
58 // If we are displaying the user side of a simcall, remove the crude details of context switching
59 if (frame_name.find("simgrid::kernel::actor::simcall_answered") != std::string::npos ||
60 frame_name.find("simgrid::kernel::actor::simcall_blocking") != std::string::npos ||
61 frame_name.find("simcall_run_answered") != std::string::npos ||
62 frame_name.find("simcall_run_blocking") != std::string::npos) {
64 ss.str(""); // This is how you clear a stringstream in C++. clear() is something else :'(
66 if (frame_name == "main")
69 if (frame_name == "simgrid::xbt::Backtrace::Backtrace()")
79 std::string resolve() const { return ""; } // fallback value
83 Backtrace::Backtrace() : impl_(std::make_shared<BacktraceImpl>()) {}
85 std::string Backtrace::resolve() const
87 return impl_->resolve();
90 void Backtrace::display() const
92 std::string backtrace = resolve();
93 std::fprintf(stderr, "Backtrace (displayed in actor %s%s):\n%s\n", xbt_procname(),
94 (xbt_log_no_loc ? " -- short trace because of --log=no_loc" : ""),
95 backtrace.empty() ? "(backtrace not set -- did you install Boost.Stacktrace?)" : backtrace.c_str());
98 } // namespace simgrid::xbt