60 lines · python
1# -*- Python -*-2 3import os4 5# Setup config name.6config.name = "MemorySanitizer" + 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_msan_cflags = (13 [14 "-fsanitize=memory",15 "-mno-omit-leaf-frame-pointer",16 "-fno-omit-frame-pointer",17 "-fno-optimize-sibling-calls",18 ]19 + [config.target_cflags]20 + config.debug_info_flags21)22# Some Msan tests leverage backtrace() which requires libexecinfo on FreeBSD.23if config.target_os == "FreeBSD":24 clang_msan_cflags += ["-lexecinfo", "-fPIC"]25# On SystemZ we need -mbackchain to make the fast unwinder work.26if config.target_arch == "s390x":27 clang_msan_cflags.append("-mbackchain")28clang_msan_cxxflags = config.cxx_mode_flags + clang_msan_cflags29 30# Flags for KMSAN invocation. This is C-only, we're not interested in C++.31clang_kmsan_cflags = (32 ["-fsanitize=kernel-memory"] + [config.target_cflags] + config.debug_info_flags33)34 35 36def build_invocation(compile_flags):37 return " " + " ".join([config.clang] + compile_flags) + " "38 39 40config.substitutions.append(("%clang_msan ", build_invocation(clang_msan_cflags)))41config.substitutions.append(("%clangxx_msan ", build_invocation(clang_msan_cxxflags)))42config.substitutions.append(("%clang_kmsan ", build_invocation(clang_kmsan_cflags)))43 44# Default test suffixes.45config.suffixes = [".c", ".cpp"]46 47if config.target_os not in ["Linux", "NetBSD", "FreeBSD"]:48 config.unsupported = True49 50# For mips64, mips64el we have forced store_context_size to 1 because these51# archs use slow unwinder which is not async signal safe. Therefore we only52# check the first frame since store_context size is 1.53if config.host_arch in ["mips64", "mips64el"]:54 config.substitutions.append(("CHECK-%short-stack", "CHECK-SHORT-STACK"))55else:56 config.substitutions.append(("CHECK-%short-stack", "CHECK-FULL-STACK"))57 58if config.target_os == "NetBSD":59 config.substitutions.insert(0, ("%run", config.netbsd_noaslr_prefix))60