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// Copyright Antony Polukhin, 2016-2017.
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_STACKTRACE_DETAIL_LOCATION_FROM_SYMBOL_HPP
#define BOOST_STACKTRACE_DETAIL_LOCATION_FROM_SYMBOL_HPP
#include <boost/config.hpp>
#ifdef BOOST_HAS_PRAGMA_ONCE
# pragma once
#endif
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
# include <dlfcn.h>
#else
# include <boost/detail/winapi/dll.hpp>
#endif
namespace boost { namespace stacktrace { namespace detail {
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
class location_from_symbol {
::Dl_info dli_;
public:
explicit location_from_symbol(const void* addr) BOOST_NOEXCEPT
: dli_()
{
if (!::dladdr(addr, &dli_)) {
dli_.dli_fname = 0;
}
}
bool empty() const BOOST_NOEXCEPT {
return !dli_.dli_fname;
}
const char* name() const BOOST_NOEXCEPT {
return dli_.dli_fname;
}
};
class program_location {
public:
const char* name() const BOOST_NOEXCEPT {
return 0;
}
};
#else
class location_from_symbol {
BOOST_STATIC_CONSTEXPR boost::detail::winapi::DWORD_ DEFAULT_PATH_SIZE_ = 260;
char file_name_[DEFAULT_PATH_SIZE_];
public:
explicit location_from_symbol(const void* addr) BOOST_NOEXCEPT {
file_name_[0] = '\0';
boost::detail::winapi::MEMORY_BASIC_INFORMATION_ mbi;
if (!boost::detail::winapi::VirtualQuery(addr, &mbi, sizeof(mbi))) {
return;
}
boost::detail::winapi::HMODULE_ handle = reinterpret_cast<boost::detail::winapi::HMODULE_>(mbi.AllocationBase);
if (!boost::detail::winapi::GetModuleFileNameA(handle, file_name_, DEFAULT_PATH_SIZE_)) {
file_name_[0] = '\0';
return;
}
}
bool empty() const BOOST_NOEXCEPT {
return file_name_[0] == '\0';
}
const char* name() const BOOST_NOEXCEPT {
return file_name_;
}
};
class program_location {
BOOST_STATIC_CONSTEXPR boost::detail::winapi::DWORD_ DEFAULT_PATH_SIZE_ = 260;
char file_name_[DEFAULT_PATH_SIZE_];
public:
program_location() BOOST_NOEXCEPT {
file_name_[0] = '\0';
const boost::detail::winapi::HMODULE_ handle = 0;
if (!boost::detail::winapi::GetModuleFileNameA(handle, file_name_, DEFAULT_PATH_SIZE_)) {
file_name_[0] = '\0';
}
}
const char* name() const BOOST_NOEXCEPT {
return file_name_[0] ? file_name_ : 0;
}
};
#endif
}}} // namespace boost::stacktrace::detail
#endif // BOOST_STACKTRACE_DETAIL_LOCATION_FROM_SYMBOL_HPP
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