| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Defines base::PathProviderMac which replaces base::PathProviderPosix for Mac |
| // in base/path_service.cc. |
| |
| #include <dlfcn.h> |
| #import <Foundation/Foundation.h> |
| #include <mach-o/dyld.h> |
| #include <stdint.h> |
| |
| #include "base/base_paths.h" |
| #include "base/compiler_specific.h" |
| #include "base/files/file_path.h" |
| #include "base/files/file_util.h" |
| #include "base/logging.h" |
| #include "base/mac/bundle_locations.h" |
| #include "base/mac/foundation_util.h" |
| #include "base/path_service.h" |
| #include "base/strings/string_util.h" |
| #include "base/threading/thread_restrictions.h" |
| #include "build/build_config.h" |
| |
| namespace { |
| |
| void GetNSExecutablePath(base::FilePath* path) { |
| DCHECK(path); |
| // Executable path can have relative references ("..") depending on |
| // how the app was launched. |
| uint32_t executable_length = 0; |
| _NSGetExecutablePath(NULL, &executable_length); |
| DCHECK_GT(executable_length, 1u); |
| std::string executable_path; |
| int rv = _NSGetExecutablePath( |
| base::WriteInto(&executable_path, executable_length), |
| &executable_length); |
| DCHECK_EQ(rv, 0); |
| |
| // _NSGetExecutablePath may return paths containing ./ or ../ which makes |
| // FilePath::DirName() work incorrectly, convert it to absolute path so that |
| // paths such as DIR_SOURCE_ROOT can work, since we expect absolute paths to |
| // be returned here. |
| // TODO(bauerb): http://crbug.com/259796, http://crbug.com/373477 |
| base::ThreadRestrictions::ScopedAllowIO allow_io; |
| *path = base::MakeAbsoluteFilePath(base::FilePath(executable_path)); |
| } |
| |
| // Returns true if the module for |address| is found. |path| will contain |
| // the path to the module. Note that |path| may not be absolute. |
| bool GetModulePathForAddress(base::FilePath* path, |
| const void* address) WARN_UNUSED_RESULT; |
| |
| bool GetModulePathForAddress(base::FilePath* path, const void* address) { |
| Dl_info info; |
| if (dladdr(address, &info) == 0) |
| return false; |
| *path = base::FilePath(info.dli_fname); |
| return true; |
| } |
| |
| } // namespace |
| |
| namespace base { |
| |
| bool PathProviderMac(int key, base::FilePath* result) { |
| switch (key) { |
| case base::FILE_EXE: |
| GetNSExecutablePath(result); |
| return true; |
| case base::FILE_MODULE: |
| return GetModulePathForAddress(result, |
| reinterpret_cast<const void*>(&base::PathProviderMac)); |
| case base::DIR_APP_DATA: { |
| bool success = base::mac::GetUserDirectory(NSApplicationSupportDirectory, |
| result); |
| #if defined(OS_IOS) |
| // On IOS, this directory does not exist unless it is created explicitly. |
| if (success && !base::PathExists(*result)) |
| success = base::CreateDirectory(*result); |
| #endif // defined(OS_IOS) |
| return success; |
| } |
| case base::DIR_SOURCE_ROOT: |
| // Go through PathService to catch overrides. |
| if (!PathService::Get(base::FILE_EXE, result)) |
| return false; |
| |
| // Start with the executable's directory. |
| *result = result->DirName(); |
| |
| #if !defined(OS_IOS) |
| if (base::mac::AmIBundled()) { |
| // The bundled app executables (Chromium, TestShell, etc) live five |
| // levels down, eg: |
| // src/xcodebuild/{Debug|Release}/Chromium.app/Contents/MacOS/Chromium |
| *result = result->DirName().DirName().DirName().DirName().DirName(); |
| } else { |
| // Unit tests execute two levels deep from the source root, eg: |
| // src/xcodebuild/{Debug|Release}/base_unittests |
| *result = result->DirName().DirName(); |
| } |
| #endif |
| return true; |
| case base::DIR_USER_DESKTOP: |
| #if defined(OS_IOS) |
| // iOS does not have desktop directories. |
| NOTIMPLEMENTED(); |
| return false; |
| #else |
| return base::mac::GetUserDirectory(NSDesktopDirectory, result); |
| #endif |
| case base::DIR_ASSETS: |
| #if defined(OS_IOS) |
| // TODO(https://crbug.com/957792): Assets live alongside the executable. |
| return PathService::Get(base::DIR_MODULE, result); |
| #else |
| if (!base::mac::AmIBundled()) { |
| return PathService::Get(base::DIR_MODULE, result); |
| } |
| *result = base::mac::FrameworkBundlePath().Append( |
| FILE_PATH_LITERAL("Resources")); |
| return true; |
| #endif // !defined(OS_IOS) |
| case base::DIR_CACHE: |
| return base::mac::GetUserDirectory(NSCachesDirectory, result); |
| default: |
| return false; |
| } |
| } |
| |
| } // namespace base |