81 lines
2.9 KiB
Python
81 lines
2.9 KiB
Python
# -*- Python -*-
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import os
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# Setup config name.
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config.name = "HWAddressSanitizer" + getattr(config, "name_suffix", "default")
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# Setup source root.
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config.test_source_root = os.path.dirname(__file__)
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# Setup default compiler flags used with -fsanitize=memory option.
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clang_cflags = [config.target_cflags] + config.debug_info_flags
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clang_cxxflags = config.cxx_mode_flags + clang_cflags
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clang_hwasan_common_cflags = clang_cflags + ["-fsanitize=hwaddress", "-fuse-ld=lld"]
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if config.target_arch == "x86_64" and config.enable_aliases != "0":
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clang_hwasan_common_cflags += ["-fsanitize-hwaddress-experimental-aliasing"]
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else:
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config.available_features.add("pointer-tagging")
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if config.target_arch == "x86_64":
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# The callback instrumentation used on x86_64 has a 1/64 chance of choosing a
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# stack tag of 0. This causes stack tests to become flaky, so we force tags
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# to be generated via calls to __hwasan_generate_tag, which never returns 0.
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# TODO: See if we can remove this once we use the outlined instrumentation.
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clang_hwasan_common_cflags += ["-mllvm", "-hwasan-generate-tags-with-calls=1"]
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clang_hwasan_cflags = clang_hwasan_common_cflags + [
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"-mllvm",
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"-hwasan-globals",
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"-mllvm",
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"-hwasan-use-short-granules",
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"-mllvm",
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"-hwasan-instrument-landing-pads=0",
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"-mllvm",
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"-hwasan-instrument-personality-functions",
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]
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clang_hwasan_oldrt_cflags = clang_hwasan_common_cflags + [
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"-mllvm",
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"-hwasan-use-short-granules=0",
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"-mllvm",
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"-hwasan-instrument-landing-pads=1",
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"-mllvm",
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"-hwasan-instrument-personality-functions=0",
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]
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clang_hwasan_cxxflags = config.cxx_mode_flags + clang_hwasan_cflags
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clang_hwasan_oldrt_cxxflags = config.cxx_mode_flags + clang_hwasan_oldrt_cflags
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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(("%clangxx ", build_invocation(clang_cxxflags)))
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config.substitutions.append(("%clang_hwasan ", build_invocation(clang_hwasan_cflags)))
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config.substitutions.append(
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("%clang_hwasan_oldrt ", build_invocation(clang_hwasan_oldrt_cflags))
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)
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config.substitutions.append(
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("%clangxx_hwasan ", build_invocation(clang_hwasan_cxxflags))
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)
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config.substitutions.append(
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("%clangxx_hwasan_oldrt ", build_invocation(clang_hwasan_oldrt_cxxflags))
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)
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config.substitutions.append(("%compiler_rt_libdir", config.compiler_rt_libdir))
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default_hwasan_opts_str = ":".join(
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["disable_allocator_tagging=1", "random_tags=0", "fail_without_syscall_abi=0"]
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+ config.default_sanitizer_opts
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)
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if default_hwasan_opts_str:
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config.environment["HWASAN_OPTIONS"] = default_hwasan_opts_str
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default_hwasan_opts_str += ":"
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config.substitutions.append(
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("%env_hwasan_opts=", "env HWASAN_OPTIONS=" + default_hwasan_opts_str)
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)
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# Default test suffixes.
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config.suffixes = [".c", ".cpp"]
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if config.host_os not in ["Linux", "Android"] or not config.has_lld:
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config.unsupported = True
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