1 /* Copyright (c) 2005-2016. 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. */
11 // Try to detect and use the C++ intanium ABI for name demangling:
12 #ifdef __GXX_ABI_VERSION
16 #include "simgrid/simix.h" /* SIMIX_process_self_get_name() */
17 #include <xbt/backtrace.h>
18 #include <xbt/backtrace.hpp>
20 #include <xbt/sysdep.h>
22 #include "src/internal_config.h"
26 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_backtrace, xbt, "Backtrace");
30 void xbt_backtrace_display(xbt_backtrace_location_t* loc, std::size_t count)
33 std::vector<std::string> backtrace = simgrid::xbt::resolveBacktrace(loc, count);
34 if (backtrace.empty()) {
35 fprintf(stderr, "(backtrace not set)\n");
38 fprintf(stderr, "Backtrace (displayed in process %s):\n", SIMIX_process_self_get_name());
39 for (std::string const& s : backtrace)
40 fprintf(stderr, "---> %s\n", s.c_str());
42 XBT_ERROR("Cannot display backtrace when compiled without libunwind.");
46 /** @brief show the backtrace of the current point (lovely while debugging) */
47 void xbt_backtrace_display_current()
49 const std::size_t size = 10;
50 xbt_backtrace_location_t bt[size];
51 size_t used = xbt_backtrace_current(bt, size);
52 xbt_backtrace_display(bt, used);
58 std::unique_ptr<char, void(*)(void*)> demangle(const char* name)
60 #ifdef __GXX_ABI_VERSION
62 auto res = std::unique_ptr<char, void(*)(void*)>(
63 abi::__cxa_demangle(name, nullptr, nullptr, &status),
68 // We did not manage to resolve this. Probably because this is not a mangled symbol:
71 return std::unique_ptr<char, void(*)(void*)>(xbt_strdup(name), std::free);
74 std::vector<xbt_backtrace_location_t> backtrace()
76 const std::size_t size = 10;
77 xbt_backtrace_location_t loc[size];
78 size_t used = xbt_backtrace_current(loc, size);
79 return std::vector<xbt_backtrace_location_t>(loc, loc + used);
85 #if HAVE_BACKTRACE && HAVE_EXECINFO_H && HAVE_POPEN && defined(ADDR2LINE)
86 # include "src/xbt/backtrace_linux.cpp"
88 # include "src/xbt/backtrace_dummy.cpp"