-/* Copyright (c) 2005-2019. 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 "src/internal_config.h"
#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 <boost/stacktrace.hpp>
#endif
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_backtrace, xbt, "Backtrace");
-
/** @brief show the backtrace of the current point (lovely while debugging) */
void xbt_backtrace_display_current()
{
}
class BacktraceImpl {
- short refcount_ = 1;
-
+#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:
- void ref() { refcount_++; }
- bool unref()
+ std::string resolve() const
{
- refcount_--;
- if (refcount_ == 0) {
- delete this;
- return true;
- } else {
- return false;
- }
+ std::stringstream ss;
+ ss << st;
+ return ss.str();
}
-#if HAVE_BOOST_STACKTRACE_BACKTRACE || HAVE_BOOST_STACKTRACE_ADDR2LINE
- boost::stacktrace::stacktrace st;
-#endif
};
-Backtrace::Backtrace()
-{
-#if HAVE_BOOST_STACKTRACE_BACKTRACE || HAVE_BOOST_STACKTRACE_ADDR2LINE
- impl_ = new BacktraceImpl();
- impl_->st = boost::stacktrace::stacktrace();
-#endif
-}
-Backtrace::Backtrace(const Backtrace& bt)
-{
- impl_ = bt.impl_;
- if (impl_)
- impl_->ref();
-}
+Backtrace::Backtrace() : impl_(std::make_shared<BacktraceImpl>()) {}
-Backtrace::Backtrace(Backtrace&& bt)
+std::string Backtrace::resolve() const
{
- impl_ = bt.impl_;
- bt.impl_ = nullptr;
-}
-
-Backtrace& Backtrace::operator=(const Backtrace& rhs)
-{
- if (this != &rhs) {
- if (impl_)
- impl_->unref();
- impl_ = rhs.impl_;
- if (impl_)
- impl_->ref();
- }
- return *this;
-}
-
-Backtrace& Backtrace::operator=(Backtrace&& rhs)
-{
- if (this != &rhs) {
- if (impl_)
- impl_->unref();
- impl_ = rhs.impl_;
- rhs.impl_ = nullptr;
- }
- return *this;
-}
-
-Backtrace::~Backtrace()
-{
- if (impl_)
- impl_->unref();
-}
-
-std::string const Backtrace::resolve() const
-{
- std::string result("");
-
-#if HAVE_BOOST_STACKTRACE_BACKTRACE || HAVE_BOOST_STACKTRACE_ADDR2LINE
- std::stringstream ss;
- ss << impl_->st;
- result.append(ss.str());
-#endif
- return result;
+ return impl_->resolve();
}
void Backtrace::display() const
{
std::string backtrace = resolve();
- if (backtrace.empty()) {
- fprintf(stderr, "(backtrace not set -- did you install Boost.Stacktrace?)\n");
- return;
- }
- fprintf(stderr, "Backtrace (displayed in actor %s):\n", xbt_procname());
- std::fprintf(stderr, "%s\n", backtrace.c_str());
+ 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