src/compiler-rt/test/tsan/lit.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 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' + config.name_suffix
  16
  17 # Setup source root.
  18 config.test_source_root = os.path.dirname(__file__)
  19
  20 # Setup environment variables for running ThreadSanitizer.
  21 default_tsan_opts = "atexit_sleep_ms=0"
  22
  23 if config.host_os == 'Darwin':
  24   # On Darwin, we default to `abort_on_error=1`, which would make tests run
  25   # much slower. Let's override this and run lit tests with 'abort_on_error=0'.
  26   default_tsan_opts += ':abort_on_error=0'
  27
  28 # Platform-specific default TSAN_OPTIONS for lit tests.
  29 if default_tsan_opts:
  30   config.environment['TSAN_OPTIONS'] = default_tsan_opts
  31   default_tsan_opts += ':'
  32 config.substitutions.append(('%env_tsan_opts=',
  33                              'env TSAN_OPTIONS=' + default_tsan_opts))
  34
  35 # GCC driver doesn't add necessary compile/link flags with -fsanitize=thread.
  36 if config.compiler_id == 'GNU':
  37   extra_cflags = ["-fPIE", "-pthread", "-ldl", "-lstdc++", "-lrt", "-pie"]
  38 else:
  39   extra_cflags = []
  40
  41 # Setup default compiler flags used with -fsanitize=thread option.
  42 clang_tsan_cflags = (["-fsanitize=thread",
  43                       "-Wall"] +
  44                       [config.target_cflags] +
  45                       config.debug_info_flags +
  46                       extra_cflags)
  47 clang_tsan_cxxflags = config.cxx_mode_flags + clang_tsan_cflags
  48 # Add additional flags if we're using instrumented libc++.
  49 # Instrumented libcxx currently not supported on Darwin.
  50 if config.has_libcxx and config.host_os != 'Darwin':
  51   # FIXME: Dehardcode this path somehow.
  52   libcxx_path = os.path.join(config.compiler_rt_obj_root, "lib",
  53                              "tsan", "libcxx_tsan_" + config.target_arch)
  54   libcxx_incdir = os.path.join(libcxx_path, "include", "c++", "v1")
  55   libcxx_libdir = os.path.join(libcxx_path, "lib")
  56   libcxx_so = os.path.join(libcxx_libdir, "libc++.so")
  57   clang_tsan_cxxflags += ["-std=c++11",
  58                           "-nostdinc++",
  59                           "-I%s" % libcxx_incdir,
  60                           libcxx_so,
  61                           "-Wl,-rpath=%s" % libcxx_libdir]
  62
  63 def build_invocation(compile_flags):
  64   return " " + " ".join([config.clang] + compile_flags) + " "
  65
  66 config.substitutions.append( ("%clang_tsan ", build_invocation(clang_tsan_cflags)) )
  67 config.substitutions.append( ("%clangxx_tsan ", build_invocation(clang_tsan_cxxflags)) )
  68
  69 # Define CHECK-%os to check for OS-dependent output.
  70 config.substitutions.append( ('CHECK-%os', ("CHECK-" + config.host_os)))
  71
  72 config.substitutions.append( ("%deflake ", os.path.join(os.path.dirname(__file__), "deflake.bash")) )
  73
  74 # Default test suffixes.
  75 config.suffixes = ['.c', '.cc', '.cpp', '.m', '.mm']
  76
  77 # ThreadSanitizer tests are currently supported on FreeBSD, Linux and Darwin.
  78 if config.host_os not in ['FreeBSD', 'Linux', 'Darwin']:
  79   config.unsupported = True
  80
  81 # Allow tests to use REQUIRES=stable-runtime.  For use when you cannot use XFAIL
  82 # because the test hangs.
  83 if config.target_arch != 'aarch64':
  84   config.available_features.add('stable-runtime')