forked from OSchip/llvm-project
116 lines
4.0 KiB
INI
116 lines
4.0 KiB
INI
import lit.formats
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import sys
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import os
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config.name = "libFuzzer" + config.name_suffix
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config.test_format = lit.formats.ShTest(True)
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config.suffixes = ['.test']
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config.test_source_root = os.path.dirname(__file__)
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# Choose between lit's internal shell pipeline runner and a real shell. If
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# LIT_USE_INTERNAL_SHELL is in the environment, we use that as an override.
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use_lit_shell = os.environ.get("LIT_USE_INTERNAL_SHELL")
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if use_lit_shell:
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# 0 is external, "" is default, and everything else is internal.
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execute_external = (use_lit_shell == "0")
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else:
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# Otherwise we default to internal on Windows and external elsewhere, as
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# bash on Windows is usually very slow.
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execute_external = (not sys.platform in ['win32'])
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# testFormat: The test format to use to interpret tests.
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#
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# For now we require '&&' between commands, until they get globally killed and
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# the test runner updated.
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config.test_format = lit.formats.ShTest(execute_external)
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# LeakSanitizer is not supported on OSX right now.
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if sys.platform.startswith('darwin') or sys.platform.startswith('freebsd'):
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lit_config.note('lsan feature unavailable')
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else:
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lit_config.note('lsan feature available')
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config.available_features.add('lsan')
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# MemorySanitizer is not supported on OSX right now
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if sys.platform.startswith('darwin'):
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lit_config.note('msan feature unavailable')
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assert 'msan' not in config.available_features
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else:
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lit_config.note('msan feature available')
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config.available_features.add('msan')
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if sys.platform.startswith('win') or sys.platform.startswith('cygwin'):
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config.available_features.add('windows')
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if sys.platform.startswith('darwin'):
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config.available_features.add('darwin')
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if sys.platform.startswith('linux'):
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# Note the value of ``sys.platform`` is not consistent
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# between python 2 and 3, hence the use of ``.startswith()``.
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lit_config.note('linux feature available')
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config.available_features.add('linux')
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else:
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lit_config.note('linux feature unavailable')
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config.substitutions.append(('%build_dir', config.cmake_binary_dir))
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libfuzzer_src_root = os.path.join(config.compiler_rt_src_root, "lib", "fuzzer")
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config.substitutions.append(('%libfuzzer_src', libfuzzer_src_root))
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def generate_compiler_cmd(is_cpp=True, fuzzer_enabled=True, msan_enabled=False):
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compiler_cmd = config.clang
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extra_cmd = config.target_flags
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if config.clang and config.stdlib == 'libc++':
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link_cmd = '-stdlib=libc++ -Wl,-rpath=%s' % config.runtime_library_dir
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elif config.clang and config.stdlib == 'static-libc++':
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link_cmd = '-stdlib=libc++ -lc++abi -static-libstdc++ -Wl,-rpath=%s' % (
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config.runtime_library_dir)
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elif any(x in config.target_triple for x in ('darwin', 'freebsd')):
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link_cmd = '-lc++'
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else:
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link_cmd = '-lstdc++'
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std_cmd = '--driver-mode=g++ -std=c++11' if is_cpp else ''
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if msan_enabled:
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sanitizers = ['memory']
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else:
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sanitizers = ['address']
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if fuzzer_enabled:
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sanitizers.append('fuzzer')
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sanitizers_cmd = ('-fsanitize=%s' % ','.join(sanitizers))
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return " ".join([
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compiler_cmd,
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std_cmd,
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link_cmd,
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"-O2 -gline-tables-only",
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sanitizers_cmd,
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"-I%s" % libfuzzer_src_root,
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extra_cmd
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])
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config.substitutions.append(('%cpp_compiler',
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generate_compiler_cmd(is_cpp=True, fuzzer_enabled=True)
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))
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config.substitutions.append(('%c_compiler',
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generate_compiler_cmd(is_cpp=False, fuzzer_enabled=True)
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))
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config.substitutions.append(('%no_fuzzer_cpp_compiler',
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generate_compiler_cmd(is_cpp=True, fuzzer_enabled=False)
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))
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config.substitutions.append(('%no_fuzzer_c_compiler',
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generate_compiler_cmd(is_cpp=False, fuzzer_enabled=False)
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))
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config.substitutions.append(('%msan_compiler',
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generate_compiler_cmd(is_cpp=True, fuzzer_enabled=True, msan_enabled=True)
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))
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if config.host_os == 'Darwin':
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if config.target_arch in ["x86_64", "x86_64h"]:
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config.parallelism_group = "darwin-64bit-sanitizer"
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elif config.apple_platform != "osx" and not config.apple_platform.endswith("sim"):
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config.parallelism_group = "darwin-ios-device-sanitizer"
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