https://github.com/python/cpython/commit/4e10d4fef5c073faaaf04ce5e03749a5dbe7716b
commit: 4e10d4fef5c073faaaf04ce5e03749a5dbe7716b
branch: main
author: Victor Stinner <[email protected]>
committer: vstinner <[email protected]>
date: 2026-11-10T00:25:19+01:00
summary:
gh-111178: Set function=False by default in support.check_sanitizer() (#161640)
Update also libregrtest.utils to detect function sanitizer
(-fsanitize=function).
files:
M Lib/test/libregrtest/utils.py
M Lib/test/support/__init__.py
diff --git a/Lib/test/libregrtest/utils.py b/Lib/test/libregrtest/utils.py
index 0b8f7f51395a643..41a798c71089f9e 100644
--- a/Lib/test/libregrtest/utils.py
+++ b/Lib/test/libregrtest/utils.py
@@ -414,6 +414,9 @@ def get_build_info():
# --with-thread-sanitizer
if support.check_sanitizer(thread=True):
sanitizers.append("TSAN")
+ # --with-thread-sanitizer
+ if support.check_sanitizer(function=True):
+ sanitizers.append("fsanitize=function")
if sanitizers:
build.append('+'.join(sanitizers))
@@ -701,6 +704,7 @@ def display_header(use_resources: dict[str, str | None],
msan = support.check_sanitizer(memory=True)
ubsan = support.check_sanitizer(ub=True)
tsan = support.check_sanitizer(thread=True)
+ function_san = support.check_sanitizer(function=True)
sanitizers = []
if asan:
sanitizers.append("address")
@@ -710,12 +714,14 @@ def display_header(use_resources: dict[str, str | None],
sanitizers.append("undefined behavior")
if tsan:
sanitizers.append("thread")
+ if function_san:
+ sanitizers.append("function")
if sanitizers:
print(f"== sanitizers: {', '.join(sanitizers)}")
for sanitizer, env_var in (
(asan, "ASAN_OPTIONS"),
(msan, "MSAN_OPTIONS"),
- (ubsan, "UBSAN_OPTIONS"),
+ (ubsan or function_san, "UBSAN_OPTIONS"),
(tsan, "TSAN_OPTIONS"),
):
options= os.environ.get(env_var)
diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py
index df3ae0890c0f126..f69734037a8fe57 100644
--- a/Lib/test/support/__init__.py
+++ b/Lib/test/support/__init__.py
@@ -462,11 +462,11 @@ def skip_if_buildbot(reason=None):
return unittest.skipIf(isbuildbot, reason)
def check_sanitizer(*, address=False, hwaddress=False, memory=False, ub=False,
- thread=False, function=True):
+ thread=False, function=False):
"""Returns True if Python is compiled with sanitizer support"""
- if not (address or hwaddress or memory or ub or thread):
- raise ValueError('At least one of address, hwaddress, memory, ub or '
- 'thread must be True')
+ if not (address or hwaddress or memory or ub or thread or function):
+ raise ValueError('At least one of address, hwaddress, memory, ub, '
+ 'thread or function must be True')
cflags = sysconfig.get_config_var('CFLAGS') or ''
@@ -517,11 +517,13 @@ def configured_with_sanitizer(name):
)
-def skip_if_sanitizer(reason=None, *, address=False, memory=False, ub=False,
thread=False):
+def skip_if_sanitizer(reason=None, *, address=False, memory=False, ub=False,
+ thread=False, function=False):
"""Decorator raising SkipTest if running with a sanitizer active."""
if not reason:
reason = 'not working with sanitizers active'
- skip = check_sanitizer(address=address, memory=memory, ub=ub,
thread=thread)
+ skip = check_sanitizer(address=address, memory=memory, ub=ub,
+ thread=thread, function=function)
return unittest.skipIf(skip, reason)
# gh-89363: True if fork() can hang if Python is built with Address Sanitizer
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