1#!/usr/bin/env python 2 3# Copyright (c) 2012 Google Inc. All rights reserved. 4# Use of this source code is governed by a BSD-style license that can be 5# found in the LICENSE file. 6 7""" 8Verify that relinking a solib doesn't relink a dependent executable if the 9solib's public API hasn't changed. 10""" 11 12import os 13import sys 14import TestCommon 15import TestGyp 16 17# NOTE(fischman): This test will not work with other generators because the 18# API-hash-based-mtime-preservation optimization is only implemented in 19# ninja.py. It could be extended to the make.py generator as well pretty 20# easily, probably. 21# (also, it tests ninja-specific out paths, which would have to be generalized 22# if this was extended to other generators). 23test = TestGyp.TestGyp(formats=['ninja']) 24 25if not os.environ.get('ProgramFiles(x86)'): 26 # TODO(scottmg) 27 print 'Skipping test on x86, http://crbug.com/365833' 28 test.pass_test() 29 30test.run_gyp('solibs_avoid_relinking.gyp') 31 32# Build the executable, grab its timestamp, touch the solib's source, rebuild 33# executable, ensure timestamp hasn't changed. 34test.build('solibs_avoid_relinking.gyp', 'b') 35test.built_file_must_exist('b' + TestCommon.exe_suffix) 36pre_stat = os.stat(test.built_file_path('b' + TestCommon.exe_suffix)) 37os.utime(os.path.join(test.workdir, 'solib.cc'), 38 (pre_stat.st_atime, pre_stat.st_mtime + 100)) 39test.sleep() 40test.build('solibs_avoid_relinking.gyp', 'b') 41post_stat = os.stat(test.built_file_path('b' + TestCommon.exe_suffix)) 42 43if pre_stat.st_mtime != post_stat.st_mtime: 44 test.fail_test() 45else: 46 test.pass_test() 47