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Bug 1557547 - Actively reject clang < 4.0 during configure. r=mshal 

Bug 1394825 bumped the minimum version of clang we use on automation,
for the base toolchain jobs, and there's a libclang test for bindgen,
but we should reject the compiler in the first place.

The check to do that works in both C and C++, contrary to the original
3.6 test that was checking a C++ feature ; the test was later changed
for 3.9, using a check that would have worked in both C and C++, but
the C exception was left around. We remove it now.

Differential Revision: https://phabricator.services.mozilla.com/D34083

--HG--
extra : moz-landing-system : lando
This commit is contained in:
Mike Hommey 2019-06-12 22:22:24 +00:00
Родитель 953869800a
Коммит 44e96352da
3 изменённых файлов: 36 добавлений и 45 удалений
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14
build/moz.configure/toolchain.configure
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@ -395,10 +395,10 @@ def get_compiler_info(compiler, language):
# in Xcode have a completely different versioning scheme despite exposing
# the version with the same defines.
# So instead, we make things such that the version is missing when the
# clang used is below the minimum supported version (currently clang 3.9).
# We then only include the version information when the C++ compiler
# matches the feature check, so that an unsupported version of clang would
# have no version number.
# clang used is below the minimum supported version (currently clang 4.0).
# We then only include the version information when the compiler matches
# the feature check, so that an unsupported version of clang would have
# no version number.
check = dedent('''\
#if defined(_MSC_VER)
#if defined(__clang__)
@ -407,7 +407,7 @@ def get_compiler_info(compiler, language):
#endif
#elif defined(__clang__)
%COMPILER "clang"
# if !__cplusplus || __has_builtin(__builtin_bitreverse8)
# if __has_attribute(diagnose_if)
%VERSION __clang_major__.__clang_minor__.__clang_patchlevel__
# endif
#elif defined(__GNUC__)
@ -1037,10 +1037,10 @@ def compiler(language, host_or_target, c_compiler=None, other_compiler=None,
% info.version)
# If you want to bump the version check here search for
# builtin_bitreverse8 above, and see the associated comment.
# diagnose_if above, and see the associated comment.
if info.type == 'clang' and not info.version:
raise FatalCheckError(
'Only clang/llvm 3.9 or newer is supported.')
'Only clang/llvm 4.0 or newer is supported.')
if info.flags:
raise FatalCheckError(

65
python/mozbuild/mozbuild/test/configure/test_toolchain_configure.py
Просмотреть файл

@ -190,17 +190,14 @@ def CLANGXX(version):
CLANG_3_3 = CLANG('3.3.0') + DEFAULT_C99
CLANGXX_3_3 = CLANGXX('3.3.0')
CLANG_3_6 = CLANG('3.6.2') + DEFAULT_C11
CLANGXX_3_6 = CLANGXX('3.6.2') + {
'-std=gnu++11': {
'__has_builtin(__builtin_bitreverse8)': '1',
},
'-std=gnu++14': {
'__has_builtin(__builtin_bitreverse8)': '1',
},
CLANG_4_0 = CLANG('4.0.2') + DEFAULT_C11 + {
'__has_attribute(diagnose_if)': '1',
}
DEFAULT_CLANG = CLANG_3_6
DEFAULT_CLANGXX = CLANGXX_3_6
CLANGXX_4_0 = CLANGXX('4.0.2') + {
'__has_attribute(diagnose_if)': '1',
}
DEFAULT_CLANG = CLANG_4_0
DEFAULT_CLANGXX = CLANGXX_4_0
def CLANG_PLATFORM(gcc_platform):
@ -443,8 +440,8 @@ class LinuxToolchainTest(BaseToolchainTest):
'/usr/bin/g++-7': GXX_7 + GCC_PLATFORM_X86_64_LINUX,
'/usr/bin/clang': DEFAULT_CLANG + CLANG_PLATFORM_X86_64_LINUX,
'/usr/bin/clang++': DEFAULT_CLANGXX + CLANG_PLATFORM_X86_64_LINUX,
'/usr/bin/clang-3.6': CLANG_3_6 + CLANG_PLATFORM_X86_64_LINUX,
'/usr/bin/clang++-3.6': CLANGXX_3_6 + CLANG_PLATFORM_X86_64_LINUX,
'/usr/bin/clang-4.0': CLANG_4_0 + CLANG_PLATFORM_X86_64_LINUX,
'/usr/bin/clang++-4.0': CLANGXX_4_0 + CLANG_PLATFORM_X86_64_LINUX,
'/usr/bin/clang-3.3': CLANG_3_3 + CLANG_PLATFORM_X86_64_LINUX,
'/usr/bin/clang++-3.3': CLANGXX_3_3 + CLANG_PLATFORM_X86_64_LINUX,
}
@ -486,30 +483,24 @@ class LinuxToolchainTest(BaseToolchainTest):
DEFAULT_GCC_RESULT = GCC_6_RESULT + {'compiler': '/usr/bin/gcc'}
DEFAULT_GXX_RESULT = GXX_6_RESULT + {'compiler': '/usr/bin/g++'}
CLANG_3_3_RESULT = CompilerResult(
flags=[],
version='3.3.0',
type='clang',
compiler='/usr/bin/clang-3.3',
language='C',
)
CLANGXX_3_3_RESULT = 'Only clang/llvm 3.9 or newer is supported.'
CLANG_3_6_RESULT = CompilerResult(
CLANG_3_3_RESULT = 'Only clang/llvm 4.0 or newer is supported.'
CLANGXX_3_3_RESULT = 'Only clang/llvm 4.0 or newer is supported.'
CLANG_4_0_RESULT = CompilerResult(
flags=['-std=gnu99'],
version='3.6.2',
version='4.0.2',
type='clang',
compiler='/usr/bin/clang-3.6',
compiler='/usr/bin/clang-4.0',
language='C',
)
CLANGXX_3_6_RESULT = CompilerResult(
CLANGXX_4_0_RESULT = CompilerResult(
flags=['-std=gnu++14'],
version='3.6.2',
version='4.0.2',
type='clang',
compiler='/usr/bin/clang++-3.6',
compiler='/usr/bin/clang++-4.0',
language='C++',
)
DEFAULT_CLANG_RESULT = CLANG_3_6_RESULT + {'compiler': '/usr/bin/clang'}
DEFAULT_CLANGXX_RESULT = CLANGXX_3_6_RESULT + {'compiler': '/usr/bin/clang++'}
DEFAULT_CLANG_RESULT = CLANG_4_0_RESULT + {'compiler': '/usr/bin/clang'}
DEFAULT_CLANGXX_RESULT = CLANGXX_4_0_RESULT + {'compiler': '/usr/bin/clang++'}
def test_default(self):
# We'll try clang and gcc, and find clang first.
@ -638,10 +629,10 @@ class LinuxToolchainTest(BaseToolchainTest):
def test_guess_cxx_clang(self):
# When CXX is not set, we guess it from CC.
self.do_toolchain_test(self.PATHS, {
'c_compiler': self.CLANG_3_6_RESULT,
'cxx_compiler': self.CLANGXX_3_6_RESULT,
'c_compiler': self.CLANG_4_0_RESULT,
'cxx_compiler': self.CLANGXX_4_0_RESULT,
}, environ={
'CC': 'clang-3.6',
'CC': 'clang-4.0',
})
def test_unsupported_clang(self):
@ -814,8 +805,8 @@ class OSXToolchainTest(BaseToolchainTest):
'/usr/bin/g++-7': GXX_7 + GCC_PLATFORM_X86_64_OSX,
'/usr/bin/clang': DEFAULT_CLANG + CLANG_PLATFORM_X86_64_OSX,
'/usr/bin/clang++': DEFAULT_CLANGXX + CLANG_PLATFORM_X86_64_OSX,
'/usr/bin/clang-3.6': CLANG_3_6 + CLANG_PLATFORM_X86_64_OSX,
'/usr/bin/clang++-3.6': CLANGXX_3_6 + CLANG_PLATFORM_X86_64_OSX,
'/usr/bin/clang-4.0': CLANG_4_0 + CLANG_PLATFORM_X86_64_OSX,
'/usr/bin/clang++-4.0': CLANGXX_4_0 + CLANG_PLATFORM_X86_64_OSX,
'/usr/bin/clang-3.3': CLANG_3_3 + CLANG_PLATFORM_X86_64_OSX,
'/usr/bin/clang++-3.3': CLANGXX_3_3 + CLANG_PLATFORM_X86_64_OSX,
}
@ -893,8 +884,8 @@ class WindowsToolchainTest(BaseToolchainTest):
'/usr/bin/g++-6': GXX_6 + GCC_PLATFORM_X86_WIN,
'/usr/bin/clang': DEFAULT_CLANG + CLANG_PLATFORM_X86_WIN,
'/usr/bin/clang++': DEFAULT_CLANGXX + CLANG_PLATFORM_X86_WIN,
'/usr/bin/clang-3.6': CLANG_3_6 + CLANG_PLATFORM_X86_WIN,
'/usr/bin/clang++-3.6': CLANGXX_3_6 + CLANG_PLATFORM_X86_WIN,
'/usr/bin/clang-4.0': CLANG_4_0 + CLANG_PLATFORM_X86_WIN,
'/usr/bin/clang++-4.0': CLANGXX_4_0 + CLANG_PLATFORM_X86_WIN,
'/usr/bin/clang-3.3': CLANG_3_3 + CLANG_PLATFORM_X86_WIN,
'/usr/bin/clang++-3.3': CLANGXX_3_3 + CLANG_PLATFORM_X86_WIN,
}
@ -1010,8 +1001,8 @@ class Windows64ToolchainTest(WindowsToolchainTest):
'/usr/bin/g++-7': GXX_7 + GCC_PLATFORM_X86_64_WIN,
'/usr/bin/clang': DEFAULT_CLANG + CLANG_PLATFORM_X86_64_WIN,
'/usr/bin/clang++': DEFAULT_CLANGXX + CLANG_PLATFORM_X86_64_WIN,
'/usr/bin/clang-3.6': CLANG_3_6 + CLANG_PLATFORM_X86_64_WIN,
'/usr/bin/clang++-3.6': CLANGXX_3_6 + CLANG_PLATFORM_X86_64_WIN,
'/usr/bin/clang-4.0': CLANG_4_0 + CLANG_PLATFORM_X86_64_WIN,
'/usr/bin/clang++-4.0': CLANGXX_4_0 + CLANG_PLATFORM_X86_64_WIN,
'/usr/bin/clang-3.3': CLANG_3_3 + CLANG_PLATFORM_X86_64_WIN,
'/usr/bin/clang++-3.3': CLANGXX_3_3 + CLANG_PLATFORM_X86_64_WIN,
}

2
python/mozbuild/mozbuild/test/configure/test_toolchain_helpers.py
Просмотреть файл

@ -30,7 +30,7 @@ class CompilerPreprocessor(Preprocessor):
# simple "FOO" case.
VARSUBST = re.compile('(?<!")(?P<VAR>\w+)(?!")', re.U)
NON_WHITESPACE = re.compile('\S')
HAS_FEATURE_OR_BUILTIN = re.compile('(__has_(feature|builtin))\(([^\)]*)\)')
HAS_FEATURE_OR_BUILTIN = re.compile('(__has_(feature|builtin|attribute))\(([^\)]*)\)')
def __init__(self, *args, **kwargs):
Preprocessor.__init__(self, *args, **kwargs)