src/compiler-rt/test/ubsan/lit.common.cfg

   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 attr_value == None:
   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 source root.
  15 config.test_source_root = os.path.dirname(__file__)
  16
  17 default_ubsan_opts = []
  18 # Choose between standalone and UBSan+ASan modes.
  19 ubsan_lit_test_mode = get_required_attr(config, 'ubsan_lit_test_mode')
  20 if ubsan_lit_test_mode == "Standalone":
  21   config.name = 'UBSan-Standalone-' + config.target_arch
  22   config.available_features.add("ubsan-standalone")
  23   clang_ubsan_cflags = []
  24 elif ubsan_lit_test_mode == "AddressSanitizer":
  25   config.name = 'UBSan-ASan-' + config.target_arch
  26   config.available_features.add("ubsan-asan")
  27   clang_ubsan_cflags = ["-fsanitize=address"]
  28   default_ubsan_opts += ['detect_leaks=0']
  29 elif ubsan_lit_test_mode == "MemorySanitizer":
  30   config.name = 'UBSan-MSan-' + config.target_arch
  31   config.available_features.add("ubsan-msan")
  32   clang_ubsan_cflags = ["-fsanitize=memory"]
  33 elif ubsan_lit_test_mode == "ThreadSanitizer":
  34   config.name = 'UBSan-TSan-' + config.target_arch
  35   config.available_features.add("ubsan-tsan")
  36   clang_ubsan_cflags = ["-fsanitize=thread"]
  37 else:
  38   lit_config.fatal("Unknown UBSan test mode: %r" % ubsan_lit_test_mode)
  39
  40 # Platform-specific default for lit tests.
  41 if config.host_os == 'Darwin':
  42   # On Darwin, we default to `abort_on_error=1`, which would make tests run
  43   # much slower. Let's override this and run lit tests with 'abort_on_error=0'.
  44   default_ubsan_opts += ['abort_on_error=0']
  45 default_ubsan_opts_str = ':'.join(default_ubsan_opts)
  46 if default_ubsan_opts_str:
  47   config.environment['UBSAN_OPTIONS'] = default_ubsan_opts_str
  48   default_ubsan_opts_str += ':'
  49 # Substitution to setup UBSAN_OPTIONS in portable way.
  50 config.substitutions.append(('%env_ubsan_opts=',
  51                              'env UBSAN_OPTIONS=' + default_ubsan_opts_str))
  52
  53 def build_invocation(compile_flags):
  54   return " " + " ".join([config.clang] + compile_flags) + " "
  55
  56 target_cflags = [get_required_attr(config, "target_cflags")]
  57 clang_ubsan_cflags += target_cflags
  58 clang_ubsan_cxxflags = config.cxx_mode_flags + clang_ubsan_cflags
  59
  60 # Define %clang and %clangxx substitutions to use in test RUN lines.
  61 config.substitutions.append( ("%clang ", build_invocation(clang_ubsan_cflags)) )
  62 config.substitutions.append( ("%clangxx ", build_invocation(clang_ubsan_cxxflags)) )
  63
  64 # Default test suffixes.
  65 config.suffixes = ['.c', '.cc', '.cpp']
  66
  67 # Check that the host supports UndefinedBehaviorSanitizer tests
  68 if config.host_os not in ['Linux', 'Darwin', 'FreeBSD', 'Windows']:
  69   config.unsupported = True
  70
  71 if config.host_os == 'Windows':
  72   # We do not currently support enough of the Microsoft ABI for UBSan to work on
  73   # Windows.
  74   config.available_features.remove('cxxabi')
  75
  76 # Allow tests to use REQUIRES=stable-runtime.  For use when you cannot use XFAIL
  77 # because the test hangs or fails on one configuration and not the other.
  78 if config.target_arch.startswith('arm') == False and config.target_arch != 'aarch64':
  79   config.available_features.add('stable-runtime')