1# -*- Python -*- 2 3# Common configuration for running leak detection tests under LSan/ASan. 4 5import os 6import re 7 8import lit.util 9 10def get_required_attr(config, attr_name): 11 attr_value = getattr(config, attr_name, None) 12 if attr_value == None: 13 lit_config.fatal( 14 "No attribute %r in test configuration! You may need to run " 15 "tests from your build directory or add this attribute " 16 "to lit.site.cfg.py " % attr_name) 17 return attr_value 18 19# Setup source root. 20config.test_source_root = os.path.dirname(__file__) 21 22# Choose between standalone and LSan+ASan modes. 23lsan_lit_test_mode = get_required_attr(config, 'lsan_lit_test_mode') 24if lsan_lit_test_mode == "Standalone": 25 config.name = "LeakSanitizer-Standalone" 26 lsan_cflags = ["-fsanitize=leak"] 27elif lsan_lit_test_mode == "AddressSanitizer": 28 config.name = "LeakSanitizer-AddressSanitizer" 29 lsan_cflags = ["-fsanitize=address"] 30 config.available_features.add('asan') 31 if config.host_os == 'NetBSD': 32 config.substitutions.insert(0, ('%run', config.netbsd_noaslr_prefix)) 33else: 34 lit_config.fatal("Unknown LSan test mode: %r" % lsan_lit_test_mode) 35config.name += config.name_suffix 36 37# Platform-specific default LSAN_OPTIONS for lit tests. 38default_lsan_opts = 'detect_leaks=1' 39if config.host_os == 'Darwin': 40 # On Darwin, we default to `abort_on_error=1`, which would make tests run 41 # much slower. Let's override this and run lit tests with 'abort_on_error=0'. 42 # Also, make sure we do not overwhelm the syslog while testing. 43 default_lsan_opts += ':abort_on_error=0' 44 default_lsan_opts += ':log_to_syslog=0' 45 46if default_lsan_opts: 47 config.environment['LSAN_OPTIONS'] = default_lsan_opts 48 default_lsan_opts += ':' 49config.substitutions.append(('%env_lsan_opts=', 50 'env LSAN_OPTIONS=' + default_lsan_opts)) 51 52if lit.util.which('strace'): 53 config.available_features.add('strace') 54 55clang_cflags = ["-O0", config.target_cflags] + config.debug_info_flags 56clang_cxxflags = config.cxx_mode_flags + clang_cflags 57lsan_incdir = config.test_source_root + "/../" 58clang_lsan_cflags = clang_cflags + lsan_cflags + ["-I%s" % lsan_incdir] 59clang_lsan_cxxflags = clang_cxxflags + lsan_cflags + ["-I%s" % lsan_incdir] 60 61config.clang_cflags = clang_cflags 62config.clang_cxxflags = clang_cxxflags 63 64def build_invocation(compile_flags): 65 return " " + " ".join([config.clang] + compile_flags) + " " 66 67config.substitutions.append( ("%clang ", build_invocation(clang_cflags)) ) 68config.substitutions.append( ("%clangxx ", build_invocation(clang_cxxflags)) ) 69config.substitutions.append( ("%clang_lsan ", build_invocation(clang_lsan_cflags)) ) 70config.substitutions.append( ("%clangxx_lsan ", build_invocation(clang_lsan_cxxflags)) ) 71 72# LeakSanitizer tests are currently supported on x86-64 Linux, PowerPC64 Linux, arm Linux, mips64 Linux, s390x Linux and x86_64 Darwin. 73supported_linux = config.host_os is 'Linux' and config.host_arch in ['x86_64', 'ppc64', 'ppc64le', 'mips64', 'arm', 'armhf', 'armv7l', 's390x'] 74supported_darwin = config.host_os == 'Darwin' and config.target_arch in ['x86_64'] 75supported_netbsd = config.host_os == 'NetBSD' and config.target_arch in ['x86_64', 'i386'] 76if not (supported_linux or supported_darwin or supported_netbsd): 77 config.unsupported = True 78 79# Don't support Thumb due to broken fast unwinder 80if re.search('mthumb', config.target_cflags) is not None: 81 config.unsupported = True 82 83config.suffixes = ['.c', '.cpp', '.mm'] 84