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62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
// Copyright 2018 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "util/exe_path.h"
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#include "base/files/file_util.h"
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#include "base/logging.h"
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#include "base/strings/string_util.h"
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#include "util/build_config.h"
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#if defined(OS_MACOSX)
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#include <mach-o/dyld.h>
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#elif defined(OS_WIN)
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#include <windows.h>
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#endif
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#if defined(OS_MACOSX)
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base::FilePath GetExePath() {
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// Executable path can have relative references ("..") depending on
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// how the app was launched.
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uint32_t executable_length = 0;
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_NSGetExecutablePath(NULL, &executable_length);
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DCHECK_GT(executable_length, 1u);
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std::string executable_path;
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int rv = _NSGetExecutablePath(
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base::WriteInto(&executable_path, executable_length), &executable_length);
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DCHECK_EQ(rv, 0);
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// _NSGetExecutablePath may return paths containing ./ or ../ which makes
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// FilePath::DirName() work incorrectly, convert it to absolute path so that
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// paths such as DIR_SOURCE_ROOT can work, since we expect absolute paths to
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// be returned here.
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return base::MakeAbsoluteFilePath(base::FilePath(executable_path));
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}
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#elif defined(OS_WIN)
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base::FilePath GetExePath() {
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wchar_t system_buffer[MAX_PATH];
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system_buffer[0] = 0;
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if (GetModuleFileName(NULL, system_buffer, MAX_PATH) == 0) {
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return base::FilePath();
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}
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return base::FilePath(system_buffer);
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}
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#else
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base::FilePath GetExePath() {
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base::FilePath result;
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const char kProcSelfExe[] = "/proc/self/exe";
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if (!ReadSymbolicLink(base::FilePath(kProcSelfExe), &result)) {
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NOTREACHED() << "Unable to resolve " << kProcSelfExe << ".";
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return base::FilePath();
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}
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return result;
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}
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#endif
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