-/* Copyright (c) 2005-2018. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2005-2021. 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 "src/internal_config.h"
-#include "simgrid/simix.h" /* SIMIX_process_self_get_name() */
#include <xbt/backtrace.hpp>
-#include <xbt/log.h>
#include <xbt/string.hpp>
#include <xbt/sysdep.h>
+#include <xbt/virtu.h>
-#include <cstddef>
+#include <cstdio>
#include <cstdlib>
-#include <cstring>
-#include <fstream>
#include <sstream>
-#include <sys/stat.h>
-#include <vector>
-
-#include <boost/algorithm/string.hpp>
// Try to detect and use the C++ itanium ABI for name demangling:
#ifdef __GXX_ABI_VERSION
#include <cxxabi.h>
#endif
-#if HAVE_BOOST_STACKTRACE
+#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
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_backtrace, xbt, "Backtrace");
-
-static bool startWith(std::string str, const char* prefix)
-{
- return strncmp(str.c_str(), prefix, strlen(prefix)) == 0;
-}
-
-void xbt_backtrace_display(const simgrid::xbt::Backtrace& bt)
-{
- std::string backtrace = simgrid::xbt::resolve_backtrace(bt);
- if (backtrace.empty()) {
- fprintf(stderr, "(backtrace not set -- did you install Boost.Stacktrace?)\n");
- return;
- }
- fprintf(stderr, "Backtrace (displayed in actor %s):\n", SIMIX_process_self_get_name());
- std::fprintf(stderr, "%s\n", backtrace.c_str());
-}
-
/** @brief show the backtrace of the current point (lovely while debugging) */
void xbt_backtrace_display_current()
{
- simgrid::xbt::Backtrace bt = simgrid::xbt::Backtrace();
- xbt_backtrace_display(bt);
+ 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);
}
class BacktraceImpl {
- short refcount_ = 1;
-
+#if HAVE_BOOST_STACKTRACE_BACKTRACE || HAVE_BOOST_STACKTRACE_ADDR2LINE
+ const boost::stacktrace::stacktrace st = boost::stacktrace::stacktrace();
public:
- void ref() { refcount_++; }
- bool unref()
+ std::string resolve() const
{
- refcount_--;
- return refcount_ == 0;
+ std::stringstream ss;
+ ss << st;
+ return ss.str();
}
-#if HAVE_BOOST_STACKTRACE
- boost::stacktrace::stacktrace st;
+#else
+public:
+ std::string resolve() const { return ""; } // fallback value
#endif
};
-Backtrace::Backtrace()
-{
-#if HAVE_BOOST_STACKTRACE
- impl_ = new BacktraceImpl();
- impl_->st = boost::stacktrace::stacktrace();
-#endif
-}
-Backtrace::Backtrace(const Backtrace& bt)
-{
- impl_ = bt.impl_;
- impl_->ref();
-}
+Backtrace::Backtrace() : impl_(std::make_shared<BacktraceImpl>()) {}
-Backtrace::~Backtrace()
+std::string Backtrace::resolve() const
{
- if (impl_ != nullptr && impl_->unref()) {
- delete impl_;
- }
+ return impl_->resolve();
}
-} // namespace xbt
-} // namespace simgrid
-
-namespace simgrid {
-namespace xbt {
-std::string resolve_backtrace(const Backtrace& bt)
+void Backtrace::display() const
{
- std::string result("");
-
-#if HAVE_BOOST_STACKTRACE
- std::stringstream ss;
- ss << bt.impl_->st;
- result.append(ss.str());
-#endif
- return result;
+ 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
