gyptest-compiler-env-toolchain.py

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#!/usr/bin/env python

# Copyright (c) 2012 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.

"""

Verifies that the user can override the compiler and linker using

CC/CXX/NM/READELF environment variables.

"""

import TestGyp

import os

import copy

import sys

here = os.path.dirname(os.path.abspath(__file__))

if sys.platform == 'win32':

  # cross compiling not supported by ninja on windows

  # and make not supported on windows at all.

  sys.exit(0)

# Clear any existing compiler related env vars.

for key in ['CC', 'CXX', 'LINK', 'CC_host', 'CXX_host', 'LINK_host',

            'NM_target', 'READELF_target']:

  if key in os.environ:

    del os.environ[key]

def CheckCompiler(test, gypfile, check_for, run_gyp):

  if run_gyp:

    test.run_gyp(gypfile)

  test.build(gypfile)

  test.must_contain_all_lines(test.stdout(), check_for)

test = TestGyp.TestGyp(formats=['ninja'])

# Must set the test format to something with a flavor (the part after the '-')

# in order to test the desired behavior. Since we want to run a non-host

# toolchain, we have to set the flavor to something that the ninja generator

# doesn't know about, so it doesn't default to the host-specific tools (e.g.,

# 'otool' on mac to generate the .TOC).

# Note that we can't just pass format=['ninja-some_toolchain'] to the

# constructor above, because then this test wouldn't be recognized as a ninja

# format test.

test.formats = ['ninja-my_flavor' if f == 'ninja' else f for f in test.formats]

def TestTargetOverideSharedLib():

  # The std output from nm and readelf is redirected to files, so we can't

  # expect their output to appear. Instead, check for the files they create to

  # see if they actually ran.

  expected = ['my_cc.py', 'my_cxx.py', 'FOO']

  # Check that CC, CXX, NM, READELF, set target compiler

  env = {'CC': 'python %s/my_cc.py FOO' % here,

         'CXX': 'python %s/my_cxx.py FOO' % here,

         'NM': 'python %s/my_nm.py' % here,

         'READELF': 'python %s/my_readelf.py' % here}

  with TestGyp.LocalEnv(env):

    CheckCompiler(test, 'compiler-shared-lib.gyp', expected, True)

    test.must_contain(test.built_file_path('RAN_MY_NM'), 'RAN_MY_NM')

    test.must_contain(test.built_file_path('RAN_MY_READELF'), 'RAN_MY_READELF')

    test.unlink(test.built_file_path('RAN_MY_NM'))

    test.unlink(test.built_file_path('RAN_MY_READELF'))

  # Run the same tests once the eviron has been restored.  The generated

  # projects should have embedded all the settings in the project files so the

  # results should be the same.

  CheckCompiler(test, 'compiler-shared-lib.gyp', expected, False)

  test.must_contain(test.built_file_path('RAN_MY_NM'), 'RAN_MY_NM')

  test.must_contain(test.built_file_path('RAN_MY_READELF'), 'RAN_MY_READELF')

TestTargetOverideSharedLib()

test.pass_test()