compiler-rt/test/tsan/lit.cfg.py

   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.py " % 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   # On Darwin, we default to ignore_noninstrumented_modules=1, which also
  28   # suppresses some races the tests are supposed to find. Let's run without this
  29   # setting, but turn it back on for Darwin tests (see Darwin/lit.local.cfg.py).
  30   default_tsan_opts += ':ignore_noninstrumented_modules=0'
  31   default_tsan_opts += ':ignore_interceptors_accesses=0'
  32
  33 # Platform-specific default TSAN_OPTIONS for lit tests.
  34 if default_tsan_opts:
  35   config.environment['TSAN_OPTIONS'] = default_tsan_opts
  36   default_tsan_opts += ':'
  37 config.substitutions.append(('%env_tsan_opts=',
  38                              'env TSAN_OPTIONS=' + default_tsan_opts))
  39
  40 # GCC driver doesn't add necessary compile/link flags with -fsanitize=thread.
  41 if config.compiler_id == 'GNU':
  42   extra_cflags = ["-fPIE", "-pthread", "-ldl", "-lrt", "-pie"]
  43 else:
  44   extra_cflags = []
  45
  46 tsan_incdir = config.test_source_root + "/../"
  47 # Setup default compiler flags used with -fsanitize=thread option.
  48 clang_tsan_cflags = (["-fsanitize=thread",
  49                       "-Wall"] +
  50                       [config.target_cflags] +
  51                       config.debug_info_flags +
  52                       extra_cflags +
  53                       ["-I%s" % tsan_incdir])
  54 clang_tsan_cxxflags = config.cxx_mode_flags + clang_tsan_cflags + ["-std=c++11"] + ["-I%s" % tsan_incdir]
  55 # Add additional flags if we're using instrumented libc++.
  56 # Instrumented libcxx currently not supported on Darwin.
  57 if config.has_libcxx and config.host_os != 'Darwin':
  58   # FIXME: Dehardcode this path somehow.
  59   libcxx_path = os.path.join(config.compiler_rt_obj_root, "lib",
  60                              "tsan", "libcxx_tsan_%s" % config.target_arch)
  61   libcxx_incdir = os.path.join(libcxx_path, "include", "c++", "v1")
  62   libcxx_libdir = os.path.join(libcxx_path, "lib")
  63   libcxx_a = os.path.join(libcxx_libdir, "libc++.a")
  64   clang_tsan_cxxflags += ["-nostdinc++",
  65                           "-I%s" % libcxx_incdir]
  66   config.substitutions.append( ("%link_libcxx_tsan", libcxx_a) )
  67 else:
  68   config.substitutions.append( ("%link_libcxx_tsan", "") )
  69
  70 def build_invocation(compile_flags):
  71   return " " + " ".join([config.clang] + compile_flags) + " "
  72
  73 config.substitutions.append( ("%clang_tsan ", build_invocation(clang_tsan_cflags)) )
  74 config.substitutions.append( ("%clangxx_tsan ", build_invocation(clang_tsan_cxxflags)) )
  75
  76 # Define CHECK-%os to check for OS-dependent output.
  77 config.substitutions.append( ('CHECK-%os', ("CHECK-" + config.host_os)))
  78
  79 config.substitutions.append( ("%deflake ", os.path.join(os.path.dirname(__file__), "deflake.bash") + " " + config.deflake_threshold + " "))
  80
  81 # Default test suffixes.
  82 config.suffixes = ['.c', '.cpp', '.m', '.mm']
  83
  84 if config.host_os not in ['FreeBSD', 'Linux', 'Darwin', 'NetBSD']:
  85   config.unsupported = True
  86
  87 if config.android:
  88   config.unsupported = True
  89
  90 if not config.parallelism_group:
  91   config.parallelism_group = 'shadow-memory'
  92
  93 if config.host_os == 'NetBSD':
  94   config.substitutions.insert(0, ('%run', config.netbsd_noaslr_prefix))