115 lines
4.6 KiB
Python
115 lines
4.6 KiB
Python
# -*- Python -*-
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import os
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def get_required_attr(config, attr_name):
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attr_value = getattr(config, attr_name, None)
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if not attr_value:
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lit_config.fatal(
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"No attribute %r in test configuration! You may need to run "
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"tests from your build directory or add this attribute "
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"to lit.site.cfg " % attr_name)
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return attr_value
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def push_ld_library_path(config, new_path):
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new_ld_library_path = os.path.pathsep.join(
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(new_path, config.environment['LD_LIBRARY_PATH']))
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config.environment['LD_LIBRARY_PATH'] = new_ld_library_path
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# Setup config name.
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config.name = 'AddressSanitizer' + config.name_suffix
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# Setup source root.
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config.test_source_root = os.path.dirname(__file__)
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# GCC-ASan doesn't link in all the necessary libraries automatically, so
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# we have to do it ourselves.
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if config.compiler_id == 'GNU':
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extra_linkflags = ["-lpthread", "-lstdc++", "-ldl"]
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else:
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extra_linkflags = []
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# Setup default compiler flags used with -fsanitize=address option.
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# FIXME: Review the set of required flags and check if it can be reduced.
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target_cflags = [get_required_attr(config, "target_cflags")] + extra_linkflags
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target_cxxflags = config.cxx_mode_flags + target_cflags
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clang_asan_static_cflags = ["-fsanitize=address",
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"-mno-omit-leaf-frame-pointer",
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"-fno-omit-frame-pointer",
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"-fno-optimize-sibling-calls",
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"-g"] + target_cflags
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clang_asan_static_cxxflags = config.cxx_mode_flags + clang_asan_static_cflags
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if config.asan_dynamic:
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clang_asan_cflags = clang_asan_static_cflags + ['-shared-libasan']
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clang_asan_cxxflags = clang_asan_static_cxxflags + ['-shared-libasan']
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config.available_features.add("asan-dynamic-runtime")
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else:
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clang_asan_cflags = clang_asan_static_cflags
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clang_asan_cxxflags = clang_asan_static_cxxflags
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config.available_features.add("asan-static-runtime")
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asan_lit_source_dir = get_required_attr(config, "asan_lit_source_dir")
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if config.android == "TRUE":
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config.available_features.add('android')
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clang_wrapper = os.path.join(asan_lit_source_dir,
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"android_commands", "android_compile.py") + " "
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else:
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clang_wrapper = ""
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def build_invocation(compile_flags):
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return " " + " ".join([clang_wrapper, config.clang] + compile_flags) + " "
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config.substitutions.append( ("%clang ", build_invocation(target_cflags)) )
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config.substitutions.append( ("%clangxx ", build_invocation(target_cxxflags)) )
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config.substitutions.append( ("%clang_asan ", build_invocation(clang_asan_cflags)) )
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config.substitutions.append( ("%clangxx_asan ", build_invocation(clang_asan_cxxflags)) )
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config.substitutions.append( ("%shared_libasan", "libclang_rt.asan-%s.so" % config.target_arch))
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if config.asan_dynamic:
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config.substitutions.append( ("%clang_asan_static ", build_invocation(clang_asan_static_cflags)) )
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config.substitutions.append( ("%clangxx_asan_static ", build_invocation(clang_asan_static_cxxflags)) )
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# FIXME: De-hardcode this path.
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asan_source_dir = os.path.join(
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get_required_attr(config, "compiler_rt_src_root"), "lib", "asan")
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# Setup path to asan_symbolize.py script.
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asan_symbolize = os.path.join(asan_source_dir, "scripts", "asan_symbolize.py")
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if not os.path.exists(asan_symbolize):
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lit_config.fatal("Can't find script on path %r" % asan_symbolize)
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python_exec = get_required_attr(config, "python_executable")
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config.substitutions.append( ("%asan_symbolize", python_exec + " " + asan_symbolize + " ") )
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# Determine kernel bitness
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if config.host_arch.find('64') != -1 and config.android != "TRUE":
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kernel_bits = '64'
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else:
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kernel_bits = '32'
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# Define CHECK-%os to check for OS-dependent output.
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config.substitutions.append( ('CHECK-%os', ("CHECK-" + config.host_os)))
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config.substitutions.append( ('CHECK-%kernel_bits', ("CHECK-kernel-" + kernel_bits + "-bits")))
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config.available_features.add("asan-" + config.bits + "-bits")
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# Turn on leak detection on 64-bit Linux.
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if config.host_os == 'Linux' and config.bits == '64':
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config.environment['ASAN_OPTIONS'] = 'detect_leaks=1'
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# Set LD_LIBRARY_PATH to pick dynamic runtime up properly.
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push_ld_library_path(config, config.compiler_rt_libdir)
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# GCC-ASan uses dynamic runtime by default.
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if config.compiler_id == 'GNU':
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gcc_dir = os.path.dirname(config.clang)
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libasan_dir = os.path.join(gcc_dir, "..", "lib" + config.bits)
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push_ld_library_path(config, libasan_dir)
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# Default test suffixes.
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config.suffixes = ['.c', '.cc', '.cpp']
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if config.host_os == 'Darwin':
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config.suffixes.append('.mm')
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# AddressSanitizer tests are currently supported on Linux and Darwin only.
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if config.host_os not in ['Linux', 'Darwin']:
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config.unsupported = True
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