| import lit.formats |
| import os |
| import subprocess |
| import sys |
| |
| config.name = 'cfi' |
| config.suffixes = ['.cpp'] |
| config.test_source_root = os.path.dirname(__file__) |
| |
| def is_darwin_lto_supported(): |
| return os.path.exists(os.path.join(config.llvm_shlib_dir, 'libLTO.dylib')) |
| |
| def is_linux_lto_supported(): |
| if not os.path.exists(os.path.join(config.llvm_shlib_dir, 'LLVMgold.so')): |
| return False |
| |
| ld_cmd = subprocess.Popen([config.gold_executable, '--help'], stdout = subprocess.PIPE) |
| ld_out = ld_cmd.stdout.read().decode() |
| ld_cmd.wait() |
| |
| if not '-plugin' in ld_out: |
| return False |
| |
| return True |
| |
| clangxx = ' '.join([config.clang] + config.cxx_mode_flags) |
| |
| config.substitutions.append((r"%clangxx ", clangxx + ' ')) |
| |
| if sys.platform == 'darwin' and is_darwin_lto_supported(): |
| config.substitutions.append((r"%clangxx_cfi ", 'env DYLD_LIBRARY_PATH=' + config.llvm_shlib_dir + ' ' + clangxx + ' -fsanitize=cfi ')) |
| elif sys.platform.startswith('linux') and is_linux_lto_supported(): |
| config.substitutions.append((r"%clangxx_cfi ", clangxx + ' -fuse-ld=gold -fsanitize=cfi ')) |
| else: |
| config.unsupported = True |
| |
| if lit_config.params.get('check_supported', None) and config.unsupported: |
| raise BaseException("Tests unsupported") |