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diff --git a/third_party/python/gyp/test/win/linker-flags/pgo.gyp b/third_party/python/gyp/test/win/linker-flags/pgo.gyp
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+# Copyright (c) 2013 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+{
+ 'variables': {
+ 'pgd_basename': 'test_pgo',
+ },
+ 'targets': [
+ # In the PGO (Profile-Guided Optimization) build flow, we need to build the
+ # target binary multiple times. To implement this flow with gyp, here we
+ # define multiple 'executable' targets, each of which represents one build
+ # particular build/profile stage. On tricky part to do this is that these
+ # 'executable' targets should share the code itself so that profile data
+ # can be reused among these 'executable' files. In other words, the only
+ # differences among below 'executable' targets are:
+ # 1) PGO (Profile-Guided Optimization) database, and
+ # 2) linker options.
+ # The following static library contains all the logic including entry point.
+ # Basically we don't need to rebuild this target once we enter profiling
+ # phase of PGO.
+ {
+ 'target_name': 'test_pgo_main',
+ 'type': 'static_library',
+ 'msvs_settings': {
+ 'VCCLCompilerTool': {
+ 'WholeProgramOptimization': 'true', # /GL
+ },
+ 'VCLibrarianTool': {
+ 'LinkTimeCodeGeneration': 'true',
+ },
+ },
+ 'link_settings': {
+ 'msvs_settings': {
+ 'VCLinkerTool': {
+ 'ProfileGuidedDatabase': '$(OutDir)\\<(pgd_basename).pgd',
+ 'TargetMachine': '1', # x86 - 32
+ 'SubSystem': '1', # /SUBSYSTEM:CONSOLE
+ # Tell ninja generator not to pass /ManifestFile:<filename> option
+ # to the linker, because it causes LNK1268 error in PGO biuld.
+ 'GenerateManifest': 'false',
+ # We need to specify 'libcmt.lib' here so that the linker can pick
+ # up a valid entry point.
+ 'AdditionalDependencies': [
+ 'libcmt.lib',
+ ],
+ },
+ },
+ },
+ 'sources': [
+ 'inline_test.h',
+ 'inline_test.cc',
+ 'inline_test_main.cc',
+ ],
+ },
+ {
+ 'target_name': 'test_pgo_instrument',
+ 'type': 'executable',
+ 'msvs_settings': {
+ 'VCLinkerTool': {
+ 'LinkTimeCodeGeneration': '2',
+ },
+ },
+ 'dependencies': [
+ 'test_pgo_main',
+ ],
+ },
+ {
+ 'target_name': 'gen_profile_guided_database',
+ 'type': 'none',
+ 'msvs_cygwin_shell': 0,
+ 'actions': [
+ {
+ 'action_name': 'action_main',
+ 'inputs': [],
+ 'outputs': [
+ '$(OutDir)\\<(pgd_basename).pgd',
+ ],
+ 'action': [
+ 'python', 'update_pgd.py',
+ '--vcbindir', '$(VCInstallDir)bin',
+ '--exe', '$(OutDir)\\test_pgo_instrument.exe',
+ '--pgd', '$(OutDir)\\<(pgd_basename).pgd',
+ ],
+ },
+ ],
+ 'dependencies': [
+ 'test_pgo_instrument',
+ ],
+ },
+ {
+ 'target_name': 'test_pgo_optimize',
+ 'type': 'executable',
+ 'msvs_settings': {
+ 'VCLinkerTool': {
+ 'LinkTimeCodeGeneration': '3',
+ },
+ },
+ 'sources': [
+ '$(OutDir)\\<(pgd_basename).pgd',
+ ],
+ 'dependencies': [
+ 'test_pgo_main',
+ 'gen_profile_guided_database',
+ ],
+ },
+ {
+ 'target_name': 'test_pgo_update',
+ 'type': 'executable',
+ 'msvs_settings': {
+ 'VCLinkerTool': {
+ 'LinkTimeCodeGeneration': '4',
+ },
+ },
+ 'sources': [
+ '$(OutDir)\\<(pgd_basename).pgd',
+ ],
+ 'dependencies': [
+ 'test_pgo_main',
+ ],
+ },
+ # A helper target to dump link.exe's command line options. We can use the
+ # output to determine if PGO (Profile-Guided Optimization) is available on
+ # the test environment.
+ {
+ 'target_name': 'gen_linker_option',
+ 'type': 'none',
+ 'msvs_cygwin_shell': 0,
+ 'actions': [
+ {
+ 'action_name': 'action_main',
+ 'inputs': [],
+ 'outputs': [
+ '$(OutDir)\\linker_options.txt',
+ ],
+ 'action': [
+ 'cmd.exe', '/c link.exe > $(OutDir)\\linker_options.txt & exit 0',
+ ],
+ },
+ ],
+ },
+ ]
+}