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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': '$(OutDir)\\<(pgd_basename).pgd',
'TargetMachine': '1', # x86 - 32
'SubSystem': '1', # /SUBSYSTEM:CONSOLEā©
# Tell ninja generator not to pass /ManifestFile:<filename> option
# to the linker, because it causes LNK1268 error in PGO biuld.
'GenerateManifest': 'false',
# We need to specify 'libcmt.lib' here so that the linker can pick
# up a valid entry point.
'AdditionalDependencies': [
'libcmt.lib',
],
},
},
},
'sources': [
'inline_test.h',
'inline_test.cc',
'inline_test_main.cc',
],
},
{
'target_name': 'test_pgo_instrument',
'type': 'executable',
'msvs_settings': {
'VCLinkerTool': {
'LinkTimeCodeGeneration': '2',
},
},
'dependencies': [
'test_pgo_main',
],
},
{
'target_name': 'gen_profile_guided_database',
'type': 'none',
'msvs_cygwin_shell': 0,
'actions': [
{
'action_name': 'action_main',
'inputs': [],
'outputs': [
'$(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',
],
},
],
},
]
}