| // Copyright (c) 2006-2008 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 "base/base_paths_linux.h" |
| |
| #include <unistd.h> |
| |
| #include "base/file_path.h" |
| #include "base/file_util.h" |
| #include "base/logging.h" |
| #include "base/path_service.h" |
| #include "base/string_piece.h" |
| #include "base/sys_string_conversions.h" |
| |
| namespace base { |
| |
| #if defined(OS_LINUX) |
| const char kSelfExe[] = "/proc/self/exe"; |
| #elif defined(OS_FREEBSD) |
| const char kSelfExe[] = "/proc/curproc/file"; |
| #endif |
| |
| bool PathProviderLinux(int key, FilePath* result) { |
| FilePath path; |
| switch (key) { |
| case base::FILE_EXE: |
| case base::FILE_MODULE: { // TODO(evanm): is this correct? |
| char bin_dir[PATH_MAX + 1]; |
| int bin_dir_size = readlink(kSelfExe, bin_dir, PATH_MAX); |
| if (bin_dir_size < 0 || bin_dir_size > PATH_MAX) { |
| NOTREACHED() << "Unable to resolve " << kSelfExe << "."; |
| return false; |
| } |
| bin_dir[bin_dir_size] = 0; |
| *result = FilePath(bin_dir); |
| return true; |
| } |
| case base::DIR_SOURCE_ROOT: |
| // On linux, unit tests execute two levels deep from the source root. |
| // For example: sconsbuild/{Debug|Release}/net_unittest |
| if (PathService::Get(base::DIR_EXE, &path)) { |
| path = path.DirName().DirName(); |
| if (file_util::PathExists(path.Append("base/base_paths_linux.cc"))) { |
| *result = path; |
| return true; |
| } |
| } |
| // If that failed (maybe the build output is symlinked to a different |
| // drive) try assuming the current directory is the source root. |
| if (file_util::GetCurrentDirectory(&path) && |
| file_util::PathExists(path.Append("base/base_paths_linux.cc"))) { |
| *result = path; |
| return true; |
| } |
| LOG(ERROR) << "Couldn't find your source root. " |
| << "Try running from your chromium/src directory."; |
| return false; |
| } |
| return false; |
| } |
| |
| } // namespace base |