mirror of
https://github.com/Detanup01/gbe_fork.git
synced 2024-11-30 22:35:40 +08:00
419 lines
10 KiB
C++
419 lines
10 KiB
C++
|
/*
|
||
|
|
* Copyright (C) Nemirtingas
|
||
|
|
* This file is part of System.
|
||
|
|
*
|
||
|
|
* System is free software; you can redistribute it
|
||
|
|
* and/or modify it under the terms of the GNU Lesser General Public
|
||
|
|
* License as published by the Free Software Foundation; either
|
||
|
|
* version 3 of the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* System is distributed in the hope that it will be
|
||
|
|
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
* Lesser General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Lesser General Public
|
||
|
|
* License along with System; if not, see
|
||
|
|
* <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "Library.h"
|
||
|
|
#include "Encoding.hpp"
|
||
|
|
#include "System_internals.h"
|
||
|
|
#include <memory>
|
||
|
|
|
||
|
|
#if defined(SYSTEM_OS_WINDOWS)
|
||
|
|
#define WIN32_LEAN_AND_MEAN
|
||
|
|
#define VC_EXTRALEAN
|
||
|
|
#define NOMINMAX
|
||
|
|
#include <Windows.h>
|
||
|
|
|
||
|
|
constexpr char library_suffix[] = ".dll";
|
||
|
|
|
||
|
|
#elif defined(SYSTEM_OS_LINUX) || defined(SYSTEM_OS_APPLE)
|
||
|
|
#include <dlfcn.h>
|
||
|
|
#include <cstring>
|
||
|
|
|
||
|
|
#if defined(SYSTEM_OS_LINUX)
|
||
|
|
#include <dirent.h> // to open directories
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
constexpr char library_suffix[] = ".so";
|
||
|
|
#else
|
||
|
|
#include <mach-o/dyld_images.h>
|
||
|
|
|
||
|
|
constexpr char library_suffix[] = ".dylib";
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
namespace System {
|
||
|
|
|
||
|
|
namespace Library {
|
||
|
|
|
||
|
|
#if defined(SYSTEM_OS_WINDOWS)
|
||
|
|
|
||
|
|
void* OpenLibrary(const char* library_name)
|
||
|
|
{
|
||
|
|
if (library_name == nullptr)
|
||
|
|
return nullptr;
|
||
|
|
|
||
|
|
std::wstring wide(System::Encoding::Utf8ToWChar(library_name));
|
||
|
|
return LoadLibraryW(wide.c_str());
|
||
|
|
}
|
||
|
|
|
||
|
|
void CloseLibrary(void* handle)
|
||
|
|
{
|
||
|
|
if(handle != nullptr)
|
||
|
|
FreeLibrary((HMODULE)handle);
|
||
|
|
}
|
||
|
|
|
||
|
|
void* GetSymbol(void* handle, const char* symbol_name)
|
||
|
|
{
|
||
|
|
if (symbol_name == nullptr)
|
||
|
|
return nullptr;
|
||
|
|
|
||
|
|
return GetProcAddress((HMODULE)handle, symbol_name);
|
||
|
|
}
|
||
|
|
|
||
|
|
void* GetLibraryHandle(const char* library_name)
|
||
|
|
{
|
||
|
|
if (library_name == nullptr)
|
||
|
|
return nullptr;
|
||
|
|
|
||
|
|
std::wstring wide(System::Encoding::Utf8ToWChar(library_name));
|
||
|
|
return GetModuleHandleW(wide.c_str());
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string GetLibraryPath(void* handle)
|
||
|
|
{
|
||
|
|
if (handle == nullptr)
|
||
|
|
return std::string();
|
||
|
|
|
||
|
|
std::wstring wpath(1024, L'\0');
|
||
|
|
|
||
|
|
DWORD size;
|
||
|
|
while ((size = GetModuleFileNameW((HMODULE)handle, &wpath[0], wpath.length())) == wpath.length())
|
||
|
|
{
|
||
|
|
wpath.resize(wpath.length() * 2);
|
||
|
|
}
|
||
|
|
|
||
|
|
wpath.resize(size);
|
||
|
|
return System::Encoding::WCharToUtf8(wpath);
|
||
|
|
}
|
||
|
|
|
||
|
|
#elif defined(SYSTEM_OS_LINUX) || defined(SYSTEM_OS_APPLE)
|
||
|
|
|
||
|
|
void* OpenLibrary(const char* library_name)
|
||
|
|
{
|
||
|
|
if (library_name == nullptr)
|
||
|
|
return nullptr;
|
||
|
|
|
||
|
|
return dlopen(library_name, RTLD_NOW);
|
||
|
|
}
|
||
|
|
|
||
|
|
void CloseLibrary(void* handle)
|
||
|
|
{
|
||
|
|
if(handle != nullptr)
|
||
|
|
dlclose(handle);
|
||
|
|
}
|
||
|
|
|
||
|
|
void* GetSymbol(void* handle, const char* symbol_name)
|
||
|
|
{
|
||
|
|
if (handle == nullptr)
|
||
|
|
return nullptr;
|
||
|
|
|
||
|
|
return dlsym(handle, symbol_name);
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined(SYSTEM_OS_LINUX)
|
||
|
|
std::string GetLibraryPath(void* handle)
|
||
|
|
{
|
||
|
|
if (handle == nullptr)
|
||
|
|
return std::string();
|
||
|
|
|
||
|
|
std::string const self("/proc/self/map_files/");
|
||
|
|
DIR* dir;
|
||
|
|
struct dirent* dir_entry;
|
||
|
|
std::string file_path;
|
||
|
|
std::string res;
|
||
|
|
|
||
|
|
dir = opendir(self.c_str());
|
||
|
|
if (dir != nullptr)
|
||
|
|
{
|
||
|
|
while ((dir_entry = readdir(dir)) != nullptr)
|
||
|
|
{
|
||
|
|
file_path = (self + dir_entry->d_name);
|
||
|
|
if (dir_entry->d_type != DT_LNK)
|
||
|
|
{// Not a link
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
file_path = System::ExpandSymlink(file_path);
|
||
|
|
|
||
|
|
void* lib_handle = dlopen(file_path.c_str(), RTLD_NOW);
|
||
|
|
if (lib_handle != nullptr)
|
||
|
|
{// Don't increment ref_counter.
|
||
|
|
dlclose(lib_handle);
|
||
|
|
if (handle == lib_handle)
|
||
|
|
{
|
||
|
|
res = std::move(file_path);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
closedir(dir);
|
||
|
|
}
|
||
|
|
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
|
||
|
|
void* GetLibraryHandle(const char* library_name)
|
||
|
|
{
|
||
|
|
if (library_name == nullptr)
|
||
|
|
return nullptr;
|
||
|
|
|
||
|
|
std::string const self("/proc/self/map_files/");
|
||
|
|
DIR* dir;
|
||
|
|
struct dirent* dir_entry;
|
||
|
|
void* res = nullptr;
|
||
|
|
size_t library_name_len = strlen(library_name);
|
||
|
|
|
||
|
|
dir = opendir(self.c_str());
|
||
|
|
if (dir != nullptr)
|
||
|
|
{
|
||
|
|
std::string file_path;
|
||
|
|
while ((dir_entry = readdir(dir)) != nullptr)
|
||
|
|
{
|
||
|
|
file_path = (self + dir_entry->d_name);
|
||
|
|
if (dir_entry->d_type != DT_LNK)
|
||
|
|
{// Not a link
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
file_path = System::ExpandSymlink(file_path);
|
||
|
|
|
||
|
|
auto pos = file_path.rfind('/');
|
||
|
|
if (pos != std::string::npos)
|
||
|
|
{
|
||
|
|
++pos;
|
||
|
|
if (strncmp(file_path.c_str() + pos, library_name, library_name_len) == 0)
|
||
|
|
{
|
||
|
|
res = dlopen(file_path.c_str(), RTLD_NOW);
|
||
|
|
if (res != nullptr)
|
||
|
|
{// Like Windows' GetModuleHandle, we don't want to increment the ref counter
|
||
|
|
dlclose(res);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
closedir(dir);
|
||
|
|
}
|
||
|
|
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
|
||
|
|
std::string GetLibraryPath(void* handle)
|
||
|
|
{
|
||
|
|
if (handle == nullptr)
|
||
|
|
return std::string();
|
||
|
|
|
||
|
|
task_dyld_info dyld_info;
|
||
|
|
task_t t;
|
||
|
|
pid_t pid = getpid();
|
||
|
|
task_for_pid(mach_task_self(), pid, &t);
|
||
|
|
mach_msg_type_number_t count = TASK_DYLD_INFO_COUNT;
|
||
|
|
|
||
|
|
if (task_info(t, TASK_DYLD_INFO, reinterpret_cast<task_info_t>(&dyld_info), &count) == KERN_SUCCESS)
|
||
|
|
{
|
||
|
|
dyld_all_image_infos* dyld_img_infos = reinterpret_cast<dyld_all_image_infos*>(dyld_info.all_image_info_addr);
|
||
|
|
for (int i = 0; i < dyld_img_infos->infoArrayCount; ++i)
|
||
|
|
{
|
||
|
|
void* res = dlopen(dyld_img_infos->infoArray[i].imageFilePath, RTLD_NOW);
|
||
|
|
if (res != nullptr)
|
||
|
|
{
|
||
|
|
dlclose(res);
|
||
|
|
if(res == handle)
|
||
|
|
return std::string(dyld_img_infos->infoArray[i].imageFilePath);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return std::string();
|
||
|
|
}
|
||
|
|
|
||
|
|
void* GetLibraryHandle(const char* library_name)
|
||
|
|
{
|
||
|
|
if (library_name == nullptr)
|
||
|
|
return nullptr;
|
||
|
|
|
||
|
|
void* res = nullptr;
|
||
|
|
|
||
|
|
size_t library_name_len = strlen(library_name);
|
||
|
|
|
||
|
|
task_dyld_info dyld_info;
|
||
|
|
task_t t;
|
||
|
|
pid_t pid = getpid();
|
||
|
|
task_for_pid(mach_task_self(), pid, &t);
|
||
|
|
mach_msg_type_number_t count = TASK_DYLD_INFO_COUNT;
|
||
|
|
|
||
|
|
if (task_info(t, TASK_DYLD_INFO, reinterpret_cast<task_info_t>(&dyld_info), &count) == KERN_SUCCESS)
|
||
|
|
{
|
||
|
|
const char* pos;
|
||
|
|
dyld_all_image_infos* dyld_img_infos = reinterpret_cast<dyld_all_image_infos*>(dyld_info.all_image_info_addr);
|
||
|
|
for (int i = 0; i < dyld_img_infos->infoArrayCount; ++i)
|
||
|
|
{
|
||
|
|
pos = strrchr(dyld_img_infos->infoArray[i].imageFilePath, '/');
|
||
|
|
if (pos != nullptr)
|
||
|
|
{
|
||
|
|
++pos;
|
||
|
|
if (strncmp(pos, library_name, library_name_len) == 0)
|
||
|
|
{
|
||
|
|
res = dlopen(dyld_img_infos->infoArray[i].imageFilePath, RTLD_NOW);
|
||
|
|
if (res != nullptr)
|
||
|
|
{// Like Windows' GetModuleHandle, we don't want to increment the ref counter
|
||
|
|
dlclose(res);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
std::string GetLibraryExtension()
|
||
|
|
{
|
||
|
|
return std::string{ library_suffix };
|
||
|
|
}
|
||
|
|
|
||
|
|
class LibraryImpl
|
||
|
|
{
|
||
|
|
std::shared_ptr<void> _Handle;
|
||
|
|
|
||
|
|
struct LibraryHandleDestructor
|
||
|
|
{
|
||
|
|
void operator()(void* h)
|
||
|
|
{
|
||
|
|
System::Library::CloseLibrary(h);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
public:
|
||
|
|
inline bool OpenLibrary(std::string const& library_name, bool append_extension)
|
||
|
|
{
|
||
|
|
std::string lib_name = (append_extension ? library_name + library_suffix : library_name);
|
||
|
|
|
||
|
|
void* lib = System::Library::OpenLibrary(lib_name.c_str());
|
||
|
|
|
||
|
|
if (lib == nullptr)
|
||
|
|
{
|
||
|
|
lib_name = "lib" + lib_name;
|
||
|
|
lib = System::Library::OpenLibrary(lib_name.c_str());
|
||
|
|
|
||
|
|
if (lib == nullptr)
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
_Handle = std::shared_ptr<void>(lib, LibraryHandleDestructor());
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void CloseLibrary()
|
||
|
|
{
|
||
|
|
_Handle.reset();
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void* GetVSymbol(std::string const& symbol_name) const
|
||
|
|
{
|
||
|
|
return System::Library::GetSymbol(_Handle.get(), symbol_name.c_str());
|
||
|
|
}
|
||
|
|
|
||
|
|
inline std::string GetLibraryPath() const
|
||
|
|
{
|
||
|
|
return System::Library::GetLibraryPath(_Handle.get());
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void* GetLibraryNativeHandle() const
|
||
|
|
{
|
||
|
|
return _Handle.get();
|
||
|
|
}
|
||
|
|
|
||
|
|
inline bool IsLoaded() const
|
||
|
|
{
|
||
|
|
return _Handle != nullptr;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
Library::Library():
|
||
|
|
_Impl(new LibraryImpl)
|
||
|
|
{}
|
||
|
|
|
||
|
|
Library::Library(Library const& other):
|
||
|
|
_Impl(new LibraryImpl(*other._Impl))
|
||
|
|
{}
|
||
|
|
|
||
|
|
Library::Library(Library&& other) noexcept:
|
||
|
|
_Impl(other._Impl)
|
||
|
|
{
|
||
|
|
other._Impl = nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
Library& Library::operator=(Library const& other)
|
||
|
|
{
|
||
|
|
*_Impl = *other._Impl;
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
|
||
|
|
Library& Library::operator=(Library&& other) noexcept
|
||
|
|
{
|
||
|
|
std::swap(_Impl, other._Impl);
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
|
||
|
|
Library::~Library()
|
||
|
|
{
|
||
|
|
delete _Impl; _Impl = nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool Library::OpenLibrary(std::string const& library_name, bool append_extension)
|
||
|
|
{
|
||
|
|
return _Impl->OpenLibrary(library_name, append_extension);
|
||
|
|
}
|
||
|
|
|
||
|
|
void Library::CloseLibrary()
|
||
|
|
{
|
||
|
|
_Impl->CloseLibrary();
|
||
|
|
}
|
||
|
|
|
||
|
|
void* Library::GetVSymbol(std::string const& symbol_name) const
|
||
|
|
{
|
||
|
|
return _Impl->GetVSymbol(symbol_name);
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string Library::GetLibraryPath() const
|
||
|
|
{
|
||
|
|
return _Impl->GetLibraryPath();
|
||
|
|
}
|
||
|
|
|
||
|
|
void* Library::GetLibraryNativeHandle() const
|
||
|
|
{
|
||
|
|
return _Impl->GetLibraryNativeHandle();
|
||
|
|
}
|
||
|
|
|
||
|
|
bool Library::IsLoaded() const
|
||
|
|
{
|
||
|
|
return _Impl->IsLoaded();
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|