forked from OSchip/llvm-project
258 lines
11 KiB
Python
258 lines
11 KiB
Python
# -*- Python -*-
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import os
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import platform
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import re
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import lit.formats
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# Get shlex.quote if available (added in 3.3), and fall back to pipes.quote if
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# it's not available.
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try:
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import shlex
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sh_quote = shlex.quote
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except:
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import pipes
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sh_quote = pipes.quote
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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 attr_value == None:
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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.py " % attr_name)
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return attr_value
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def push_dynamic_library_lookup_path(config, new_path):
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if platform.system() == 'Windows':
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dynamic_library_lookup_var = 'PATH'
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elif platform.system() == 'Darwin':
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dynamic_library_lookup_var = 'DYLD_LIBRARY_PATH'
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else:
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dynamic_library_lookup_var = 'LD_LIBRARY_PATH'
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new_ld_library_path = os.path.pathsep.join(
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(new_path, config.environment.get(dynamic_library_lookup_var, '')))
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config.environment[dynamic_library_lookup_var] = new_ld_library_path
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if platform.system() == 'FreeBSD':
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dynamic_library_lookup_var = 'LD_32_LIBRARY_PATH'
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new_ld_32_library_path = os.path.pathsep.join(
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(new_path, config.environment.get(dynamic_library_lookup_var, '')))
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config.environment[dynamic_library_lookup_var] = new_ld_32_library_path
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if platform.system() == 'SunOS':
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dynamic_library_lookup_var = 'LD_LIBRARY_PATH_32'
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new_ld_library_path_32 = os.path.pathsep.join(
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(new_path, config.environment.get(dynamic_library_lookup_var, '')))
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config.environment[dynamic_library_lookup_var] = new_ld_library_path_32
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dynamic_library_lookup_var = 'LD_LIBRARY_PATH_64'
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new_ld_library_path_64 = os.path.pathsep.join(
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(new_path, config.environment.get(dynamic_library_lookup_var, '')))
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config.environment[dynamic_library_lookup_var] = new_ld_library_path_64
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# Setup config name.
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config.name = 'AddressSanitizer' + config.name_suffix
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# Platform-specific default ASAN_OPTIONS for lit tests.
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default_asan_opts = list(config.default_sanitizer_opts)
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# On Darwin, leak checking is not enabled by default. Enable for x86_64
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# tests to prevent regressions
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if config.host_os == 'Darwin' and config.target_arch == 'x86_64':
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default_asan_opts += ['detect_leaks=1']
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default_asan_opts_str = ':'.join(default_asan_opts)
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if default_asan_opts_str:
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config.environment['ASAN_OPTIONS'] = default_asan_opts_str
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default_asan_opts_str += ':'
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config.substitutions.append(('%env_asan_opts=',
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'env ASAN_OPTIONS=' + default_asan_opts_str))
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# Setup source root.
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config.test_source_root = os.path.dirname(__file__)
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if config.host_os not in ['FreeBSD', 'NetBSD']:
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libdl_flag = "-ldl"
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else:
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libdl_flag = ""
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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_link_flags = ["-pthread", "-lstdc++", libdl_flag]
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else:
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extra_link_flags = []
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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_link_flags
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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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config.debug_info_flags + target_cflags)
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if config.target_arch == 's390x':
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clang_asan_static_cflags.append("-mbackchain")
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clang_asan_static_cxxflags = config.cxx_mode_flags + clang_asan_static_cflags
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asan_dynamic_flags = []
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if config.asan_dynamic:
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asan_dynamic_flags = ["-shared-libasan"]
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if platform.system() == 'Windows':
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# On Windows, we need to simulate "clang-cl /MD" on the clang driver side.
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asan_dynamic_flags += ["-D_MT", "-D_DLL", "-Wl,-nodefaultlib:libcmt,-defaultlib:msvcrt,-defaultlib:oldnames"]
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elif platform.system() == 'FreeBSD':
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# On FreeBSD, we need to add -pthread to ensure pthread functions are available.
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asan_dynamic_flags += ['-pthread']
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config.available_features.add("asan-dynamic-runtime")
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else:
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config.available_features.add("asan-static-runtime")
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clang_asan_cflags = clang_asan_static_cflags + asan_dynamic_flags
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clang_asan_cxxflags = clang_asan_static_cxxflags + asan_dynamic_flags
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# Add win32-(static|dynamic)-asan features to mark tests as passing or failing
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# in those modes. lit doesn't support logical feature test combinations.
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if platform.system() == 'Windows':
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if config.asan_dynamic:
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win_runtime_feature = "win32-dynamic-asan"
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else:
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win_runtime_feature = "win32-static-asan"
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config.available_features.add(win_runtime_feature)
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def build_invocation(compile_flags):
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return " " + " ".join([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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if config.asan_dynamic:
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if config.host_os in ['Linux', 'FreeBSD', 'NetBSD', 'SunOS']:
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shared_libasan_path = os.path.join(config.compiler_rt_libdir, "libclang_rt.asan{}.so".format(config.target_suffix))
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elif config.host_os == 'Darwin':
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shared_libasan_path = os.path.join(config.compiler_rt_libdir, 'libclang_rt.asan_{}_dynamic.dylib'.format(config.apple_platform))
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else:
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lit_config.warning('%shared_libasan substitution not set but dynamic ASan is available.')
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shared_libasan_path = None
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if shared_libasan_path is not None:
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config.substitutions.append( ("%shared_libasan", shared_libasan_path) )
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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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# Windows-specific tests might also use the clang-cl.exe driver.
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if platform.system() == 'Windows':
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clang_cl_cxxflags = ["-Wno-deprecated-declarations",
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"-WX",
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"-D_HAS_EXCEPTIONS=0",
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"-Zi"] + target_cflags
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clang_cl_asan_cxxflags = ["-fsanitize=address"] + clang_cl_cxxflags
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if config.asan_dynamic:
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clang_cl_asan_cxxflags.append("-MD")
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clang_cl_invocation = build_invocation(clang_cl_cxxflags)
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clang_cl_invocation = clang_cl_invocation.replace("clang.exe","clang-cl.exe")
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config.substitutions.append( ("%clang_cl ", clang_cl_invocation) )
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clang_cl_asan_invocation = build_invocation(clang_cl_asan_cxxflags)
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clang_cl_asan_invocation = clang_cl_asan_invocation.replace("clang.exe","clang-cl.exe")
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config.substitutions.append( ("%clang_cl_asan ", clang_cl_asan_invocation) )
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base_lib = os.path.join(config.compiler_rt_libdir, "clang_rt.asan%%s%s.lib" % config.target_suffix)
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config.substitutions.append( ("%asan_lib", base_lib % "") )
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config.substitutions.append( ("%asan_cxx_lib", base_lib % "_cxx") )
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config.substitutions.append( ("%asan_dll_thunk", base_lib % "_dll_thunk") )
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if platform.system() == 'Windows':
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# Don't use -std=c++11 on Windows, as the driver will detect the appropriate
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# default needed to use with the STL.
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config.substitutions.append(("%stdcxx11 ", ""))
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else:
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# Some tests uses C++11 features such as lambdas and need to pass -std=c++11.
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config.substitutions.append(("%stdcxx11 ", "-std=c++11 "))
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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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python_exec = sh_quote(get_required_attr(config, "python_executable"))
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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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config.substitutions.append( ("%asan_symbolize", python_exec + " " + asan_symbolize + " ") )
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# Setup path to sancov.py script.
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sanitizer_common_source_dir = os.path.join(
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get_required_attr(config, "compiler_rt_src_root"), "lib", "sanitizer_common")
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sancov = os.path.join(sanitizer_common_source_dir, "scripts", "sancov.py")
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if not os.path.exists(sancov):
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lit_config.fatal("Can't find script on path %r" % sancov)
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config.substitutions.append( ("%sancov ", python_exec + " " + sancov + " ") )
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# Determine kernel bitness
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if config.host_arch.find('64') != -1 and not config.android:
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kernel_bits = '64'
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else:
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kernel_bits = '32'
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config.substitutions.append( ('CHECK-%kernel_bits', ("CHECK-kernel-" + kernel_bits + "-bits")))
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config.substitutions.append( ("%libdl", libdl_flag) )
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config.available_features.add("asan-" + config.bits + "-bits")
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# Fast unwinder doesn't work with Thumb
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if not config.arm_thumb:
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config.available_features.add('fast-unwinder-works')
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# Turn on leak detection on 64-bit Linux.
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leak_detection_android = config.android and 'android-thread-properties-api' in config.available_features and (config.target_arch in ['x86_64', 'i386', 'i686', 'aarch64'])
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leak_detection_linux = (config.host_os == 'Linux') and (not config.android) and (config.target_arch in ['x86_64', 'i386', 'riscv64'])
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leak_detection_mac = (config.host_os == 'Darwin') and (config.target_arch == 'x86_64')
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leak_detection_netbsd = (config.host_os == 'NetBSD') and (config.target_arch in ['x86_64', 'i386'])
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if leak_detection_android or leak_detection_linux or leak_detection_mac or leak_detection_netbsd:
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config.available_features.add('leak-detection')
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# Set LD_LIBRARY_PATH to pick dynamic runtime up properly.
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push_dynamic_library_lookup_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_dynamic_library_lookup_path(config, libasan_dir)
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# Add the RT libdir to PATH directly so that we can successfully run the gtest
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# binary to list its tests.
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if config.host_os == 'Windows' and config.asan_dynamic:
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os.environ['PATH'] = os.path.pathsep.join([config.compiler_rt_libdir,
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os.environ.get('PATH', '')])
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# Default test suffixes.
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config.suffixes = ['.c', '.cpp']
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if config.host_os == 'Darwin':
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config.suffixes.append('.mm')
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if config.host_os == 'Windows':
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config.substitutions.append(('%fPIC', ''))
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config.substitutions.append(('%fPIE', ''))
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config.substitutions.append(('%pie', ''))
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else:
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config.substitutions.append(('%fPIC', '-fPIC'))
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config.substitutions.append(('%fPIE', '-fPIE'))
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config.substitutions.append(('%pie', '-pie'))
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# Only run the tests on supported OSs.
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if config.host_os not in ['Linux', 'Darwin', 'FreeBSD', 'SunOS', 'Windows', 'NetBSD']:
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config.unsupported = True
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if not config.parallelism_group:
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config.parallelism_group = 'shadow-memory'
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if config.host_os == 'NetBSD':
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config.substitutions.insert(0, ('%run', config.netbsd_noaslr_prefix))
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