1 # -*- Python -*- 2 3 import os 4 5 def get_required_attr(config, attr_name): 6 attr_value = getattr(config, attr_name, None) 7 if not attr_value: 8 lit_config.fatal( 9 "No attribute %r in test configuration! You may need to run " 10 "tests from your build directory or add this attribute " 11 "to lit.site.cfg " % attr_name) 12 return attr_value 13 14 # Setup config name. 15 config.name = 'ThreadSanitizer' 16 17 # Setup source root. 18 config.test_source_root = os.path.dirname(__file__) 19 20 # Setup environment variables for running ThreadSanitizer. 21 tsan_options = "atexit_sleep_ms=0" 22 23 config.environment['TSAN_OPTIONS'] = tsan_options 24 25 # GCC driver doesn't add necessary compile/link flags with -fsanitize=thread. 26 if config.compiler_id == 'GNU': 27 extra_cflags = ["-fPIE", "-pthread", "-ldl", "-lstdc++", "-lrt", "-pie"] 28 else: 29 extra_cflags = [] 30 31 # Setup default compiler flags used with -fsanitize=thread option. 32 # FIXME: Review the set of required flags and check if it can be reduced. 33 clang_tsan_cflags = ["-fsanitize=thread", 34 "-g", 35 "-Wall", 36 "-m64"] + extra_cflags 37 clang_tsan_cxxflags = config.cxx_mode_flags + clang_tsan_cflags 38 # Add additional flags if we're using instrumented libc++. 39 if config.has_libcxx: 40 # FIXME: Dehardcode this path somehow. 41 libcxx_path = os.path.join(config.compiler_rt_obj_root, "lib", 42 "tsan", "libcxx_tsan") 43 libcxx_incdir = os.path.join(libcxx_path, "include", "c++", "v1") 44 libcxx_libdir = os.path.join(libcxx_path, "lib") 45 libcxx_so = os.path.join(libcxx_libdir, "libc++.so") 46 clang_tsan_cxxflags += ["-std=c++11", 47 "-I%s" % libcxx_incdir, 48 libcxx_so, 49 "-Wl,-rpath=%s" % libcxx_libdir] 50 51 def build_invocation(compile_flags): 52 return " " + " ".join([config.clang] + compile_flags) + " " 53 54 config.substitutions.append( ("%clang_tsan ", build_invocation(clang_tsan_cflags)) ) 55 config.substitutions.append( ("%clangxx_tsan ", build_invocation(clang_tsan_cxxflags)) ) 56 57 # Define CHECK-%os to check for OS-dependent output. 58 config.substitutions.append( ('CHECK-%os', ("CHECK-" + config.host_os))) 59 60 config.substitutions.append( ("%deflake ", os.path.join(os.path.dirname(__file__), "deflake.bash")) ) 61 62 # Default test suffixes. 63 config.suffixes = ['.c', '.cc', '.cpp'] 64 65 # ThreadSanitizer tests are currently supported on Linux only. 66 if config.host_os not in ['Linux']: 67 config.unsupported = True 68
