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

   1 import lit.formats
   2 import os
   3
   4 config.name = "cfi" + config.name_suffix
   5 config.suffixes = [".c", ".cpp", ".test"]
   6 config.test_source_root = os.path.dirname(__file__)
   7
   8
   9 def build_invocation(compile_flags):
  10     return " " + " ".join([config.clang] + compile_flags) + " "
  11
  12
  13 clang = build_invocation([config.target_cflags])
  14 clangxx = build_invocation([config.target_cflags] + config.cxx_mode_flags)
  15
  16 config.substitutions.append((r"%clang ", clang + " "))
  17 config.substitutions.append((r"%clangxx ", clangxx + " "))
  18
  19 if "darwin" in config.available_features:
  20     # -fsanitize=cfi is not supported on Darwin hosts
  21     config.unsupported = True
  22 elif config.lto_supported:
  23     clang_cfi = clang + "-fsanitize=cfi "
  24
  25     if config.cfi_lit_test_mode == "Devirt":
  26         config.available_features.add("devirt")
  27         clang_cfi += "-fwhole-program-vtables "
  28         config.substitutions.append((r"%expect_crash_unless_devirt ", ""))
  29     else:
  30         config.substitutions.append(
  31             (r"%expect_crash_unless_devirt ", config.expect_crash)
  32         )
  33
  34     cxx = " ".join(config.cxx_mode_flags) + " "
  35     diag = "-fno-sanitize-trap=cfi -fsanitize-recover=cfi "
  36     non_dso = "-fvisibility=hidden "
  37     dso = "-fsanitize-cfi-cross-dso -fvisibility=default "
  38     if config.android:
  39         dso += "-include " + config.test_source_root + "/cross-dso/util/cfi_stubs.h "
  40     config.substitutions.append((r"%clang_cfi ", clang_cfi + non_dso))
  41     config.substitutions.append((r"%clangxx_cfi ", clang_cfi + cxx + non_dso))
  42     config.substitutions.append((r"%clang_cfi_diag ", clang_cfi + non_dso + diag))
  43     config.substitutions.append(
  44         (r"%clangxx_cfi_diag ", clang_cfi + cxx + non_dso + diag)
  45     )
  46     config.substitutions.append((r"%clangxx_cfi_dso ", clang_cfi + cxx + dso))
  47     config.substitutions.append(
  48         (r"%clangxx_cfi_dso_diag ", clang_cfi + cxx + dso + diag)
  49     )
  50     config.substitutions.append(
  51         (r"%debug_info_flags", " ".join(config.debug_info_flags))
  52     )
  53 else:
  54     config.unsupported = True
  55
  56 if config.default_sanitizer_opts:
  57     config.environment["UBSAN_OPTIONS"] = ":".join(config.default_sanitizer_opts)
  58
  59 if lit_config.params.get("check_supported", None) and config.unsupported:
  60     raise BaseException("Tests unsupported")