1# -*- Python -*- 2 3import os 4 5# Setup config name. 6config.name = 'HWAddressSanitizer' + getattr(config, 'name_suffix', 'default') 7 8# Setup source root. 9config.test_source_root = os.path.dirname(__file__) 10 11# Setup default compiler flags used with -fsanitize=memory option. 12clang_cflags = [config.target_cflags] + config.debug_info_flags 13clang_cxxflags = config.cxx_mode_flags + clang_cflags 14clang_hwasan_common_cflags = clang_cflags + ["-fsanitize=hwaddress", "-fuse-ld=lld"] 15if config.target_arch == 'x86_64': 16 # This does basically the same thing as tagged-globals on aarch64. Because 17 # the x86_64 implementation is for testing purposes only there is no 18 # equivalent target feature implemented on x86_64. 19 clang_hwasan_common_cflags += ["-mcmodel=large"] 20clang_hwasan_cflags = clang_hwasan_common_cflags + ["-mllvm", "-hwasan-globals", 21 "-mllvm", "-hwasan-use-short-granules", 22 "-mllvm", "-hwasan-instrument-landing-pads=0", 23 "-mllvm", "-hwasan-instrument-personality-functions"] 24clang_hwasan_oldrt_cflags = clang_hwasan_common_cflags + ["-mllvm", "-hwasan-use-short-granules=0", 25 "-mllvm", "-hwasan-instrument-landing-pads=1", 26 "-mllvm", "-hwasan-instrument-personality-functions=0"] 27 28clang_hwasan_cxxflags = config.cxx_mode_flags + clang_hwasan_cflags 29clang_hwasan_oldrt_cxxflags = config.cxx_mode_flags + clang_hwasan_oldrt_cflags 30 31def build_invocation(compile_flags): 32 return " " + " ".join([config.clang] + compile_flags) + " " 33 34config.substitutions.append( ("%clangxx ", build_invocation(clang_cxxflags)) ) 35config.substitutions.append( ("%clang_hwasan ", build_invocation(clang_hwasan_cflags)) ) 36config.substitutions.append( ("%clang_hwasan_oldrt ", build_invocation(clang_hwasan_oldrt_cflags)) ) 37config.substitutions.append( ("%clangxx_hwasan ", build_invocation(clang_hwasan_cxxflags)) ) 38config.substitutions.append( ("%clangxx_hwasan_oldrt ", build_invocation(clang_hwasan_oldrt_cxxflags)) ) 39config.substitutions.append( ("%compiler_rt_libdir", config.compiler_rt_libdir) ) 40 41default_hwasan_opts_str = ':'.join(['disable_allocator_tagging=1', 'random_tags=0'] + config.default_sanitizer_opts) 42if default_hwasan_opts_str: 43 config.environment['HWASAN_OPTIONS'] = default_hwasan_opts_str 44 default_hwasan_opts_str += ':' 45config.substitutions.append(('%env_hwasan_opts=', 46 'env HWASAN_OPTIONS=' + default_hwasan_opts_str)) 47 48# Default test suffixes. 49config.suffixes = ['.c', '.cpp'] 50 51if config.host_os not in ['Linux', 'Android'] or not config.has_lld: 52 config.unsupported = True 53