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# -*- Python -*-
import os
import lit.util
def get_required_attr(config, attr_name):
attr_value = getattr(config, attr_name, None)
if not attr_value:
lit_config.fatal(
"No attribute %r in test configuration! You may need to run "
"tests from your build directory or add this attribute "
"to lit.site.cfg " % attr_name)
return attr_value
# Setup config name.
config.name = 'AddressSanitizer' + config.bits
# Setup source root.
config.test_source_root = os.path.dirname(__file__)
def DisplayNoConfigMessage():
lit_config.fatal("No site specific configuration available! " +
"Try running your test from the build tree or running " +
"make check-asan")
# Figure out LLVM source root.
llvm_src_root = getattr(config, 'llvm_src_root', None)
if llvm_src_root is None:
# We probably haven't loaded the site-specific configuration: the user
# is likely trying to run a test file directly, and the site configuration
# wasn't created by the build system.
asan_site_cfg = lit_config.params.get('asan_site_config', None)
if (asan_site_cfg) and (os.path.exists(asan_site_cfg)):
lit_config.load_config(config, asan_site_cfg)
raise SystemExit
# Try to guess the location of site-specific configuration using llvm-config
# util that can point where the build tree is.
llvm_config = lit.util.which("llvm-config", config.environment["PATH"])
if not llvm_config:
DisplayNoConfigMessage()
# Find out the presumed location of generated site config.
llvm_obj_root = lit.util.capture(["llvm-config", "--obj-root"]).strip()
asan_site_cfg = os.path.join(llvm_obj_root, "projects", "compiler-rt",
"lib", "asan", "lit_tests", "lit.site.cfg")
if (not asan_site_cfg) or (not os.path.exists(asan_site_cfg)):
DisplayNoConfigMessage()
lit_config.load_config(config, asan_site_cfg)
raise SystemExit
# Setup default compiler flags used with -fsanitize=address option.
# FIXME: Review the set of required flags and check if it can be reduced.
bits_cflag = " -m" + config.bits
clang_asan_cflags = (" -fsanitize=address"
+ " -mno-omit-leaf-frame-pointer"
+ " -fno-omit-frame-pointer"
+ " -fno-optimize-sibling-calls"
+ " -g"
+ bits_cflag)
clang_asan_cxxflags = " --driver-mode=g++" + clang_asan_cflags
config.substitutions.append( ("%clang ", " " + config.clang + bits_cflag + " "))
config.substitutions.append( ("%clangxx ", (" " + config.clang +
" --driver-mode=g++" +
bits_cflag + " ")) )
config.substitutions.append( ("%clang_asan ", (" " + config.clang + " " +
clang_asan_cflags + " ")) )
config.substitutions.append( ("%clangxx_asan ", (" " + config.clang + " " +
clang_asan_cxxflags + " ")) )
# Setup path to asan_symbolize.py script.
asan_source_dir = get_required_attr(config, "asan_source_dir")
asan_symbolize = os.path.join(asan_source_dir, "scripts", "asan_symbolize.py")
if not os.path.exists(asan_symbolize):
lit_config.fatal("Can't find script on path %r" % asan_symbolize)
python_exec = get_required_attr(config, "python_executable")
config.substitutions.append( ("%asan_symbolize", python_exec + " " + asan_symbolize + " ") )
# Define CHECK-%os to check for OS-dependent output.
config.substitutions.append( ('CHECK-%os', ("CHECK-" + config.host_os)))
config.available_features.add("asan-" + config.bits + "-bits")
# Turn on leak detection on 64-bit Linux.
if config.host_os == 'Linux' and config.bits == '64':
config.environment['ASAN_OPTIONS'] = 'detect_leaks=1'
# Default test suffixes.
config.suffixes = ['.c', '.cc', '.cpp']
# AddressSanitizer tests are currently supported on Linux and Darwin only.
if config.host_os not in ['Linux', 'Darwin']:
config.unsupported = True
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