95 lines
3.7 KiB
Python
95 lines
3.7 KiB
Python
# -*- Python -*-
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import os
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def get_required_attr(config, attr_name):
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attr_value = getattr(config, attr_name, None)
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if not attr_value:
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lit_config.fatal(
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"No attribute %r in test configuration! You may need to run "
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"tests from your build directory or add this attribute "
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"to lit.site.cfg.py " % attr_name)
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return attr_value
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# Setup config name.
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config.name = 'ThreadSanitizer' + config.name_suffix
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# Setup source root.
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config.test_source_root = os.path.dirname(__file__)
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# Setup environment variables for running ThreadSanitizer.
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default_tsan_opts = "atexit_sleep_ms=0"
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if config.host_os == 'Darwin':
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# On Darwin, we default to `abort_on_error=1`, which would make tests run
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# much slower. Let's override this and run lit tests with 'abort_on_error=0'.
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default_tsan_opts += ':abort_on_error=0'
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# On Darwin, we default to ignore_noninstrumented_modules=1, which also
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# suppresses some races the tests are supposed to find. Let's run without this
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# setting, but turn it back on for Darwin tests (see Darwin/lit.local.cfg.py).
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default_tsan_opts += ':ignore_noninstrumented_modules=0'
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default_tsan_opts += ':ignore_interceptors_accesses=0'
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# Platform-specific default TSAN_OPTIONS for lit tests.
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if default_tsan_opts:
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config.environment['TSAN_OPTIONS'] = default_tsan_opts
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default_tsan_opts += ':'
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config.substitutions.append(('%env_tsan_opts=',
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'env TSAN_OPTIONS=' + default_tsan_opts))
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# GCC driver doesn't add necessary compile/link flags with -fsanitize=thread.
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if config.compiler_id == 'GNU':
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extra_cflags = ["-fPIE", "-pthread", "-ldl", "-lrt", "-pie"]
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else:
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extra_cflags = []
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tsan_incdir = config.test_source_root + "/../"
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# Setup default compiler flags used with -fsanitize=thread option.
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clang_tsan_cflags = (["-fsanitize=thread",
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"-Wall"] +
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[config.target_cflags] +
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config.debug_info_flags +
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extra_cflags +
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["-I%s" % tsan_incdir])
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clang_tsan_cxxflags = config.cxx_mode_flags + clang_tsan_cflags + ["-std=c++11"] + ["-I%s" % tsan_incdir]
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# Add additional flags if we're using instrumented libc++.
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# Instrumented libcxx currently not supported on Darwin.
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if config.has_libcxx and config.host_os != 'Darwin':
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# FIXME: Dehardcode this path somehow.
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libcxx_path = os.path.join(config.compiler_rt_obj_root, "lib",
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"tsan", "libcxx_tsan_%s" % config.target_arch)
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libcxx_incdir = os.path.join(libcxx_path, "include", "c++", "v1")
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libcxx_libdir = os.path.join(libcxx_path, "lib")
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libcxx_a = os.path.join(libcxx_libdir, "libc++.a")
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clang_tsan_cxxflags += ["-nostdinc++",
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"-I%s" % libcxx_incdir]
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config.substitutions.append( ("%link_libcxx_tsan", libcxx_a) )
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else:
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config.substitutions.append( ("%link_libcxx_tsan", "") )
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def build_invocation(compile_flags):
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return " " + " ".join([config.clang] + compile_flags) + " "
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config.substitutions.append( ("%clang_tsan ", build_invocation(clang_tsan_cflags)) )
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config.substitutions.append( ("%clangxx_tsan ", build_invocation(clang_tsan_cxxflags)) )
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# Define CHECK-%os to check for OS-dependent output.
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config.substitutions.append( ('CHECK-%os', ("CHECK-" + config.host_os)))
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config.substitutions.append( ("%deflake ", os.path.join(os.path.dirname(__file__), "deflake.bash") + " " + config.deflake_threshold + " "))
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# Default test suffixes.
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config.suffixes = ['.c', '.cpp', '.m', '.mm']
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if config.host_os not in ['FreeBSD', 'Linux', 'Darwin', 'NetBSD']:
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config.unsupported = True
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if config.android:
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config.unsupported = True
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if not config.parallelism_group:
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config.parallelism_group = 'shadow-memory'
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if config.host_os == 'NetBSD':
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config.substitutions.insert(0, ('%run', config.netbsd_noaslr_prefix))
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