| # -*- Python -*- |
| |
| import os |
| |
| # Setup config name. |
| config.name = "MemorySanitizer" + getattr(config, "name_suffix", "default") |
| |
| # Setup source root. |
| config.test_source_root = os.path.dirname(__file__) |
| |
| # Setup default compiler flags used with -fsanitize=memory option. |
| clang_msan_cflags = ( |
| [ |
| "-fsanitize=memory", |
| "-mno-omit-leaf-frame-pointer", |
| "-fno-omit-frame-pointer", |
| "-fno-optimize-sibling-calls", |
| ] |
| + [config.target_cflags] |
| + config.debug_info_flags |
| ) |
| # Some Msan tests leverage backtrace() which requires libexecinfo on FreeBSD. |
| if config.host_os == "FreeBSD": |
| clang_msan_cflags += ["-lexecinfo", "-fPIC"] |
| # On SystemZ we need -mbackchain to make the fast unwinder work. |
| if config.target_arch == "s390x": |
| clang_msan_cflags.append("-mbackchain") |
| clang_msan_cxxflags = config.cxx_mode_flags + clang_msan_cflags |
| |
| # Flags for KMSAN invocation. This is C-only, we're not interested in C++. |
| clang_kmsan_cflags = ( |
| ["-fsanitize=kernel-memory"] + [config.target_cflags] + config.debug_info_flags |
| ) |
| |
| |
| def build_invocation(compile_flags): |
| return " " + " ".join([config.clang] + compile_flags) + " " |
| |
| |
| config.substitutions.append(("%clang_msan ", build_invocation(clang_msan_cflags))) |
| config.substitutions.append(("%clangxx_msan ", build_invocation(clang_msan_cxxflags))) |
| config.substitutions.append(("%clang_kmsan ", build_invocation(clang_kmsan_cflags))) |
| |
| # Default test suffixes. |
| config.suffixes = [".c", ".cpp"] |
| |
| if config.host_os not in ["Linux", "NetBSD", "FreeBSD"]: |
| config.unsupported = True |
| |
| # For mips64, mips64el we have forced store_context_size to 1 because these |
| # archs use slow unwinder which is not async signal safe. Therefore we only |
| # check the first frame since store_context size is 1. |
| if config.host_arch in ["mips64", "mips64el"]: |
| config.substitutions.append(("CHECK-%short-stack", "CHECK-SHORT-STACK")) |
| else: |
| config.substitutions.append(("CHECK-%short-stack", "CHECK-FULL-STACK")) |
| |
| if config.host_os == "NetBSD": |
| config.substitutions.insert(0, ("%run", config.netbsd_noaslr_prefix)) |