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# Copyright © 2017-2018 Intel Corporation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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project('gcc func attributes', ['c', 'cpp'])
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# For msvc these will fail because msvc doesn't support __attribute__, for
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# Clang and GCC, they should pass.
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c = meson.get_compiler('c')
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cpp = meson.get_compiler('cpp')
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if c.get_id() == 'pgi'
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error('MESON_SKIP_TEST: PGI supports its own set of features, will need a separate list for PGI to test it.')
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endif
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expected_result = not ['msvc', 'clang-cl', 'intel-cl'].contains(c.get_id())
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# Q: Why is ifunc not in this list or any of the below lists?
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# A: It's too damn hard to figure out if you actually support it, since it
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# requires both compiler and libc support, and there isn't a good way to
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# figure that out except by running the code we're trying to test.
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attributes = [
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'aligned',
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'alloc_size',
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'always_inline',
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'cold',
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'const',
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'constructor',
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'constructor_priority',
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'deprecated',
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'destructor',
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'flatten',
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'format',
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'format_arg',
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'gnu_inline',
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'hot',
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'malloc',
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'noinline',
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'nonnull',
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'noreturn',
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'nothrow',
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'pure',
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'unused',
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'used',
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'warn_unused_result',
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'weak',
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]
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if c.get_id() != 'intel'
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# not supported by icc as of 19.0.0
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attributes += 'weakref'
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endif
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# These are unsupported on darwin with apple clang 9.1.0
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if host_machine.system() != 'darwin'
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attributes += 'alias'
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attributes += 'visibility'
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endif
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if ['gcc', 'intel'].contains(c.get_id())
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# not supported by clang as of 5.0.0 (at least up to 6.0.1)
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attributes += 'artificial'
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attributes += 'error'
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attributes += 'externally_visible'
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attributes += 'leaf'
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attributes += 'noclone'
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attributes += 'optimize'
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attributes += 'warning'
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if c.get_id() == 'gcc' and c.version().version_compare('>= 7.0.0')
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attributes += 'fallthrough'
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endif
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endif
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foreach a : attributes
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x = c.has_function_attribute(a)
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assert(x == expected_result, '@0@: @1@'.format(c.get_id(), a))
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x = cpp.has_function_attribute(a)
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assert(x == expected_result, '@0@: @1@'.format(cpp.get_id(), a))
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endforeach
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win_expect = ['windows', 'cygwin'].contains(host_machine.system())
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foreach a : ['dllexport', 'dllimport']
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assert(c.has_function_attribute(a) == win_expect,
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'@0@: @1@'.format(c.get_id(), a))
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assert(cpp.has_function_attribute(a) == win_expect,
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'@0@: @1@'.format(cpp.get_id(), a))
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endforeach
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message('checking get_supported_function_attributes')
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if not ['msvc', 'clang-cl', 'intel-cl'].contains(c.get_id())
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multi_expected = attributes
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else
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multi_expected = []
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endif
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multi_check = c.get_supported_function_attributes(attributes)
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assert(multi_check == multi_expected, 'get_supported_function_arguments works (C)')
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multi_check = cpp.get_supported_function_attributes(attributes)
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assert(multi_check == multi_expected, 'get_supported_function_arguments works (C++)')
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