| // Copyright 2018 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. |
| |
| #include "util/exe_path.h" |
| |
| #include "base/files/file_util.h" |
| #include "base/logging.h" |
| #include "base/strings/string_util.h" |
| #include "util/build_config.h" |
| |
| #if defined(OS_MACOSX) |
| #include <mach-o/dyld.h> |
| #elif defined(OS_WIN) |
| #include <windows.h> |
| |
| #include "base/win/win_util.h" |
| #elif defined(OS_FREEBSD) |
| #include <limits.h> |
| #include <sys/sysctl.h> |
| #include <sys/types.h> |
| #elif defined(OS_HAIKU) |
| #include <OS.h> |
| #include <image.h> |
| #endif |
| |
| #if defined(OS_MACOSX) |
| |
| base::FilePath GetExePath() { |
| // 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. |
| return base::MakeAbsoluteFilePath(base::FilePath(executable_path)); |
| } |
| |
| #elif defined(OS_WIN) |
| |
| base::FilePath GetExePath() { |
| char16_t system_buffer[MAX_PATH]; |
| system_buffer[0] = 0; |
| if (GetModuleFileName(NULL, base::ToWCharT(system_buffer), MAX_PATH) == 0) { |
| return base::FilePath(); |
| } |
| return base::FilePath(system_buffer); |
| } |
| |
| #elif defined(OS_FREEBSD) |
| |
| base::FilePath GetExePath() { |
| int mib[] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1}; |
| char buf[PATH_MAX]; |
| size_t buf_size = PATH_MAX; |
| if (sysctl(mib, 4, buf, &buf_size, nullptr, 0) == -1) { |
| return base::FilePath(); |
| } |
| return base::FilePath(buf); |
| } |
| |
| #elif defined(OS_HAIKU) |
| |
| base::FilePath GetExePath() { |
| image_info i_info; |
| int32 image_cookie = 0; |
| while (get_next_image_info(B_CURRENT_TEAM, &image_cookie, &i_info) == B_OK) { |
| if (i_info.type == B_APP_IMAGE) { |
| break; |
| } |
| } |
| return base::FilePath(std::string(i_info.name)); |
| } |
| |
| #else |
| |
| base::FilePath GetExePath() { |
| base::FilePath result; |
| const char kProcSelfExe[] = "/proc/self/exe"; |
| if (!ReadSymbolicLink(base::FilePath(kProcSelfExe), &result)) { |
| NOTREACHED() << "Unable to resolve " << kProcSelfExe << "."; |
| return base::FilePath(); |
| } |
| return result; |
| } |
| |
| #endif |