# -*- Python -*-

# Setup source root.
config.test_source_root = os.path.join(os.path.dirname(__file__), "TestCases")

config.name = "SanitizerCommon-" + config.name_suffix

default_tool_options = []
collect_stack_traces = ""
if config.tool_name == "asan":
  tool_cflags = ["-fsanitize=address"]
  tool_options = "ASAN_OPTIONS"
elif config.tool_name == "tsan":
  tool_cflags = ["-fsanitize=thread"]
  tool_options = "TSAN_OPTIONS"
elif config.tool_name == "msan":
  tool_cflags = ["-fsanitize=memory"]
  tool_options = "MSAN_OPTIONS"
  collect_stack_traces = "-fsanitize-memory-track-origins"
elif config.tool_name == "lsan":
  tool_cflags = ["-fsanitize=leak"]
  tool_options = "LSAN_OPTIONS"
elif config.tool_name == "ubsan":
  tool_cflags = ["-fsanitize=undefined"]
  tool_options = "UBSAN_OPTIONS"
else:
  lit_config.fatal("Unknown tool for sanitizer_common tests: %r" % config.tool_name)

config.available_features.add(config.tool_name)

if config.host_os == 'Linux' and config.tool_name == "lsan" and config.target_arch == 'i386':
  config.available_features.add("lsan-x86")

if config.arm_thumb:
  config.available_features.add('thumb')

if config.host_os == 'Darwin':
  # On Darwin, we default to `abort_on_error=1`, which would make tests run
  # much slower. Let's override this and run lit tests with 'abort_on_error=0'.
  default_tool_options += ['abort_on_error=0']
  if config.tool_name == "tsan":
    default_tool_options += ['ignore_interceptors_accesses=0']
elif config.host_os == 'Linux' and config.tool_name == 'tsan':
    # For Swift, the above also applies on Linux.
    default_tool_options += ['ignore_interceptors_accesses=0']
elif config.android:
  # The same as on Darwin, we default to "abort_on_error=1" which slows down
  # testing. Also, all existing tests are using "not" instead of "not --crash"
  # which does not work for abort()-terminated programs.
  default_tool_options += ['abort_on_error=0']

default_tool_options_str = ':'.join(default_tool_options)
if default_tool_options_str:
  config.environment[tool_options] = default_tool_options_str
  default_tool_options_str += ':'

extra_link_flags = []

if config.host_os in ['Linux']:
  extra_link_flags += ["-ldl"]

clang_cflags = config.debug_info_flags + tool_cflags + [config.target_cflags]
clang_cflags += extra_link_flags
clang_cxxflags = config.cxx_mode_flags + clang_cflags

def build_invocation(compile_flags):
  return " " + " ".join([config.clang] + compile_flags) + " "

config.substitutions.append( ("%clang ", build_invocation(clang_cflags)) )
config.substitutions.append( ("%clangxx ", build_invocation(clang_cxxflags)) )
config.substitutions.append( ("%collect_stack_traces", collect_stack_traces) )
config.substitutions.append( ("%tool_name", config.tool_name) )
config.substitutions.append( ("%tool_options", tool_options) )
config.substitutions.append( ('%env_tool_opts=',
                              'env ' + tool_options + '=' + default_tool_options_str))

config.suffixes = ['.c', '.cpp']

if config.host_os not in ['Linux', 'Darwin', 'NetBSD', 'FreeBSD', 'SunOS']:
  config.unsupported = True

if not config.parallelism_group:
  config.parallelism_group = 'shadow-memory'

# Disable LSan sanitizer_common tests
# because AppleClang doesn't support LSan.
if config.tool_name == 'lsan' and config.host_os == 'Darwin':
  lit_config.note('LSan sanitizer_common tests disabled')
  config.unsupported = True

if config.host_os == 'NetBSD':
  config.substitutions.insert(0, ('%run', config.netbsd_noaslr_prefix))
