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

   1 # -*- Python -*-
   2
   3 import os
   4
   5 # Setup config name.
   6 config.name = 'HWAddressSanitizer' + getattr(config, 'name_suffix', 'default')
   7
   8 # Setup source root.
   9 config.test_source_root = os.path.dirname(__file__)
  10
  11 # Setup default compiler flags used with -fsanitize=memory option.
  12 clang_cflags = [config.target_cflags] + config.debug_info_flags
  13 clang_cxxflags = config.cxx_mode_flags + clang_cflags
  14 clang_hwasan_common_cflags = clang_cflags + ["-fsanitize=hwaddress", "-fuse-ld=lld"]
  15
  16 if config.target_arch == 'x86_64' and config.enable_aliases == '1':
  17   clang_hwasan_common_cflags += ["-fsanitize-hwaddress-experimental-aliasing"]
  18 else:
  19   config.available_features.add('pointer-tagging')
  20 if config.target_arch == 'x86_64':
  21   # The callback instrumentation used on x86_64 has a 1/64 chance of choosing a
  22   # stack tag of 0.  This causes stack tests to become flaky, so we force tags
  23   # to be generated via calls to __hwasan_generate_tag, which never returns 0.
  24   # TODO: See if we can remove this once we use the outlined instrumentation.
  25   clang_hwasan_common_cflags += ["-mllvm", "-hwasan-generate-tags-with-calls=1"]
  26 clang_hwasan_cflags = clang_hwasan_common_cflags + ["-mllvm", "-hwasan-globals",
  27                                                    "-mllvm", "-hwasan-use-short-granules",
  28                                                    "-mllvm", "-hwasan-instrument-landing-pads=0",
  29                                                    "-mllvm", "-hwasan-instrument-personality-functions"]
  30 clang_hwasan_oldrt_cflags = clang_hwasan_common_cflags + ["-mllvm", "-hwasan-use-short-granules=0",
  31                                                           "-mllvm", "-hwasan-instrument-landing-pads=1",
  32                                                           "-mllvm", "-hwasan-instrument-personality-functions=0"]
  33
  34 clang_hwasan_cxxflags = config.cxx_mode_flags + clang_hwasan_cflags
  35 clang_hwasan_oldrt_cxxflags = config.cxx_mode_flags + clang_hwasan_oldrt_cflags
  36
  37 def build_invocation(compile_flags):
  38   return " " + " ".join([config.clang] + compile_flags) + " "
  39
  40 config.substitutions.append( ("%clangxx ", build_invocation(clang_cxxflags)) )
  41 config.substitutions.append( ("%clang_hwasan ", build_invocation(clang_hwasan_cflags)) )
  42 config.substitutions.append( ("%clang_hwasan_oldrt ", build_invocation(clang_hwasan_oldrt_cflags)) )
  43 config.substitutions.append( ("%clangxx_hwasan ", build_invocation(clang_hwasan_cxxflags)) )
  44 config.substitutions.append( ("%clangxx_hwasan_oldrt ", build_invocation(clang_hwasan_oldrt_cxxflags)) )
  45 config.substitutions.append( ("%compiler_rt_libdir", config.compiler_rt_libdir) )
  46
  47 default_hwasan_opts_str = ':'.join(['disable_allocator_tagging=1', 'random_tags=0', 'fail_without_syscall_abi=0'] + config.default_sanitizer_opts)
  48 if default_hwasan_opts_str:
  49   config.environment['HWASAN_OPTIONS'] = default_hwasan_opts_str
  50   default_hwasan_opts_str += ':'
  51 config.substitutions.append(('%env_hwasan_opts=',
  52                              'env HWASAN_OPTIONS=' + default_hwasan_opts_str))
  53
  54 # Default test suffixes.
  55 config.suffixes = ['.c', '.cpp']
  56
  57 if config.host_os not in ['Linux', 'Android'] or not config.has_lld:
  58   config.unsupported = True