forked from OSchip/llvm-project
235 lines
10 KiB
Python
235 lines
10 KiB
Python
# -*- Python -*-
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import os
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import platform
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import lit.formats
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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 " % 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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# 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 = ''
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if config.host_os == 'Darwin':
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# On Darwin, we default to `abort_on_error=1`, which would make tests run
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# much slower. Let's override this and run lit tests with 'abort_on_error=0'.
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# Also, make sure we do not overwhelm the syslog while testing.
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default_asan_opts = 'abort_on_error=0'
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default_asan_opts += ':log_to_syslog=0'
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elif config.android:
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# The same as on Darwin, we default to "abort_on_error=1" which slows down
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# testing. Also, all existing tests are using "not" instead of "not --crash"
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# which does not work for abort()-terminated programs.
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default_asan_opts = 'abort_on_error=0'
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if default_asan_opts:
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config.environment['ASAN_OPTIONS'] = default_asan_opts
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default_asan_opts += ':'
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config.substitutions.append(('%env_asan_opts=',
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'env ASAN_OPTIONS=' + default_asan_opts))
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# Setup source root.
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config.test_source_root = os.path.dirname(__file__)
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# There is no libdl on FreeBSD.
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if config.host_os != 'FreeBSD':
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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_linkflags = ["-pthread", "-lstdc++", libdl_flag]
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else:
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extra_linkflags = []
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# BFD linker in 64-bit android toolchains fails to find libm.so, which is a
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# transitive shared library dependency (via asan runtime).
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if config.android:
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extra_linkflags += ["-lm"]
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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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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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# On Windows, we need to simulate "clang-cl /MD" on the clang driver side.
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if platform.system() == 'Windows':
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asan_dynamic_flags += ["-D_MT", "-D_DLL", "-Wl,-nodefaultlib:libcmt,-defaultlib:msvcrt,-defaultlib:oldnames"]
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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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asan_lit_source_dir = get_required_attr(config, "asan_lit_source_dir")
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if config.android == "1":
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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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config.available_features.add('not-android')
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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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# Clang driver link 'x86' (i686) architecture to 'i386'.
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target_arch = config.target_arch
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if (target_arch == "i686"):
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target_arch = "i386"
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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" % 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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# 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_asan_cxxflags = ["-fsanitize=address",
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"-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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if config.asan_dynamic:
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clang_cl_asan_cxxflags.append("-MD")
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clang_invocation = build_invocation(clang_cl_asan_cxxflags)
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clang_cl_invocation = clang_invocation.replace("clang.exe","clang-cl.exe")
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config.substitutions.append( ("%clang_cl_asan ", clang_cl_invocation) )
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base_lib = os.path.join(config.compiler_rt_libdir, "clang_rt.asan%%s-%s.lib" % config.target_arch)
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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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# 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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# 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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python_exec = get_required_attr(config, "python_executable")
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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 config.android != "1":
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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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if config.host_os == 'Darwin':
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config.substitutions.append( ("%ld_flags_rpath_exe", '-Wl,-rpath,@executable_path/ %dynamiclib') )
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config.substitutions.append( ("%ld_flags_rpath_so", '-install_name @rpath/`basename %dynamiclib`') )
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elif config.host_os == 'FreeBSD':
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config.substitutions.append( ("%ld_flags_rpath_exe", "-Wl,-z,origin -Wl,-rpath,\$ORIGIN -L%T -l%xdynamiclib_namespec") )
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config.substitutions.append( ("%ld_flags_rpath_so", '') )
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elif config.host_os == 'Linux':
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config.substitutions.append( ("%ld_flags_rpath_exe", "-Wl,-rpath,\$ORIGIN -L%T -l%xdynamiclib_namespec") )
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config.substitutions.append( ("%ld_flags_rpath_so", '') )
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# Must be defined after the substitutions that use %dynamiclib.
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config.substitutions.append( ("%dynamiclib", '%T/lib%xdynamiclib_namespec.so') )
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config.substitutions.append( ("%xdynamiclib_namespec", '$(basename %t).dynamic') )
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# Allow tests to use REQUIRES=stable-runtime. For use when you cannot use XFAIL
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# because the test hangs. Adding armhf as we now have two modes.
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if config.target_arch != 'arm' and config.target_arch != 'armhf' and config.target_arch != 'aarch64':
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config.available_features.add('stable-runtime')
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# Turn on leak detection on 64-bit Linux.
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if config.host_os == 'Linux' and config.target_arch == 'x86_64':
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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', '.cc', '.cpp']
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if config.host_os == 'Darwin':
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config.suffixes.append('.mm')
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# Only run the tests on supported OSs.
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if config.host_os not in ['Linux', 'Darwin', 'FreeBSD', 'Windows']:
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config.unsupported = True
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