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[lit] Only enable LSan on darwin when clang supports it 

Summary:
LSan on darwin doesn't exist on older versions of clang,
causing non-boostrapped sanitized buildbots to fail

Reviewers: kubamracek, qcolombet, sqlbyme, zturner, modocache

Reviewed By: zturner

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D38703

llvm-svn: 315333
This commit is contained in:
Francis Ricci 2017-10-10 17:21:32 +00:00
parent 232cdb48fc
commit 072eff0930
1 changed files with 29 additions and 1 deletions
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30
llvm/utils/lit/lit/llvm/config.py
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@ -80,7 +80,8 @@ class LLVMConfig(object):
if target_triple:
if re.match(r'^x86_64.*-apple', target_triple):
if 'address' in sanitizers:
host_cxx = getattr(config, 'host_cxx', None)
if 'address' in sanitizers and self.get_clang_has_lsan(host_cxx, target_triple):
self.with_environment(
'ASAN_OPTIONS', 'detect_leaks=1', append_path=True)
if re.match(r'^x86_64.*-linux', target_triple):
@ -200,6 +201,33 @@ class LLVMConfig(object):
# Ensure the result is an ascii string, across Python2.5+ - Python3.
return clang_dir
# On macOS, LSan is only supported on clang versions 5 and higher
def get_clang_has_lsan(self, clang, triple):
if not clang:
self.lit_config.warning(
"config.host_cxx is unset but test suite is configured to use sanitizers.")
return False
clang_binary = clang.split()[0]
version_string, _ = self.get_process_output([clang_binary, '--version'])
if not 'clang' in version_string:
self.lit_config.warning(
"compiler '%s' does not appear to be clang, " % clang_binary +
"but test suite is configured to use sanitizers.")
return False
if re.match(r'.*-linux', triple):
return True
if re.match(r'^x86_64.*-apple', triple):
version_number = int(re.search(r'version ([0-9]+)\.', version_string).group(1))
if 'Apple LLVM' in version_string:
return version_number >= 9
else:
return version_number >= 5
return False
def make_itanium_abi_triple(self, triple):
m = re.match(r'(\w+)-(\w+)-(\w+)', triple)
if not m: