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// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/native_library.h"
#include <dlfcn.h>
#include <mach-o/getsect.h>
#include <string_view>
#include "base/apple/foundation_util.h"
#include "base/apple/scoped_cftyperef.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/logging.h"
#include "base/strings/strcat.h"
#include "base/strings/string_util.h"
#include "base/strings/sys_string_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "base/threading/thread_restrictions.h"
namespace base {
std::string NativeLibraryLoadError::ToString() const {
return message;
}
NativeLibrary LoadNativeLibraryWithOptions(const FilePath& library_path,
const NativeLibraryOptions& options,
NativeLibraryLoadError* error) {
// dlopen() etc. open the file off disk.
if (library_path.Extension() == "dylib" || !DirectoryExists(library_path)) {
void* dylib = dlopen(library_path.value().c_str(), RTLD_LAZY);
if (!dylib) {
if (error) {
error->message = dlerror();
}
return nullptr;
}
NativeLibrary native_lib = new NativeLibraryStruct();
native_lib->type = DYNAMIC_LIB;
native_lib->dylib = dylib;
return native_lib;
}
apple::ScopedCFTypeRef<CFURLRef> url = apple::FilePathToCFURL(library_path);
if (!url) {
return nullptr;
}
CFBundleRef bundle = CFBundleCreate(kCFAllocatorDefault, url.get());
if (!bundle) {
return nullptr;
}
NativeLibrary native_lib = new NativeLibraryStruct();
native_lib->type = BUNDLE;
native_lib->bundle = bundle;
return native_lib;
}
void UnloadNativeLibrary(NativeLibrary library) {
if (library->type == BUNDLE) {
CFRelease(library->bundle);
} else {
dlclose(library->dylib);
}
delete library;
}
void* GetFunctionPointerFromNativeLibrary(NativeLibrary library,
const char* name) {
// Get the function pointer using the right API for the type.
if (library->type == BUNDLE) {
apple::ScopedCFTypeRef<CFStringRef> symbol_name =
SysUTF8ToCFStringRef(name);
return CFBundleGetFunctionPointerForName(library->bundle,
symbol_name.get());
}
return dlsym(library->dylib, name);
}
std::string GetNativeLibraryName(std::string_view name) {
DCHECK(IsStringASCII(name));
#if BUILDFLAG(IS_IOS)
// Returns mylib.framework/mylib
return FilePath().Append(name).AddExtension("framework").Append(name).value();
#else
return StrCat({"lib", name, ".dylib"});
#endif
}
std::string GetLoadableModuleName(std::string_view name) {
DCHECK(IsStringASCII(name));
#if BUILDFLAG(IS_IOS)
// Returns mylib.framework
return FilePath().Append(name).AddExtension("framework").value();
#else
return StrCat({name, ".so"});
#endif
}
} // namespace base
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