diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d6af174d1c3a7f..5d36dffa80108b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -311,4 +311,7 @@ jobs:
#
# Skip multiprocessing and concurrent.futures tests which are affected by
# bpo-45200 bug: libasan dead lock in pthread_create().
- run: xvfb-run make buildbottest TESTOPTS="-j4 -uall,-cpu -x test_ctypes test_crypt test_decimal test_faulthandler test_interpreters test___all__ test_idle test_tix test_tk test_ttk_guionly test_ttk_textonly test_multiprocessing_fork test_multiprocessing_forkserver test_multiprocessing_spawn test_tools test_peg_generator test_concurrent_futures"
+ #
+ # test___all__ is skipped because importing some modules directly can trigger
+ # known problems with ASAN (like tk or crypt).
+ run: xvfb-run make buildbottest TESTOPTS="-j4 -uall,-cpu -x test___all__ test_multiprocessing_fork test_multiprocessing_forkserver test_multiprocessing_spawn test_tools test_peg_generator test_concurrent_futures"
diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py
index 583d94f41e5630..d71cfe5ee44fd0 100644
--- a/Lib/test/support/__init__.py
+++ b/Lib/test/support/__init__.py
@@ -43,7 +43,7 @@
"has_subprocess_support", "requires_subprocess",
"anticipate_failure", "load_package_tests", "detect_api_mismatch",
"check__all__", "skip_if_buggy_ucrt_strfptime",
- "check_disallow_instantiation", "skip_if_sanitizer",
+ "check_disallow_instantiation", "check_sanitizer", "skip_if_sanitizer",
# sys
"is_jython", "is_android", "is_emscripten", "is_wasi",
"check_impl_detail", "unix_shell", "setswitchinterval",
@@ -384,13 +384,11 @@ def skip_if_buildbot(reason=None):
isbuildbot = os.environ.get('USER') == 'buildbot'
return unittest.skipIf(isbuildbot, reason)
-def skip_if_sanitizer(reason=None, *, address=False, memory=False, ub=False):
- """Decorator raising SkipTest if running with a sanitizer active."""
+def check_sanitizer(*, address=False, memory=False, ub=False):
+ """Returns True if Python is compiled with sanitizer support"""
if not (address or memory or ub):
raise ValueError('At least one of address, memory, or ub must be True')
- if not reason:
- reason = 'not working with sanitizers active'
_cflags = sysconfig.get_config_var('CFLAGS') or ''
_config_args = sysconfig.get_config_var('CONFIG_ARGS') or ''
@@ -406,11 +404,18 @@ def skip_if_sanitizer(reason=None, *, address=False, memory=False, ub=False):
'-fsanitize=undefined' in _cflags or
'--with-undefined-behavior-sanitizer' in _config_args
)
- skip = (
+ return (
(memory and memory_sanitizer) or
(address and address_sanitizer) or
(ub and ub_sanitizer)
)
+
+
+def skip_if_sanitizer(reason=None, *, address=False, memory=False, ub=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)
return unittest.skipIf(skip, reason)
diff --git a/Lib/test/test_crypt.py b/Lib/test/test_crypt.py
index 5dc83b4ecbfa00..877c575c5534ae 100644
--- a/Lib/test/test_crypt.py
+++ b/Lib/test/test_crypt.py
@@ -1,8 +1,11 @@
import sys
import unittest
+from test.support import check_sanitizer
try:
+ if check_sanitizer(address=True, memory=True):
+ raise unittest.SkipTest("The crypt module SEGFAULTs on ASAN/MSAN builds")
import crypt
IMPORT_ERROR = None
except ImportError as ex:
diff --git a/Lib/test/test_idle.py b/Lib/test/test_idle.py
index 8756b766334e83..b94b18a541a701 100644
--- a/Lib/test/test_idle.py
+++ b/Lib/test/test_idle.py
@@ -1,5 +1,9 @@
import unittest
from test.support.import_helper import import_module
+from test.support import check_sanitizer
+
+if check_sanitizer(address=True, memory=True):
+ raise unittest.SkipTest("Tests involvin libX11 can SEGFAULT on ASAN/MSAN builds")
# Skip test_idle if _tkinter wasn't built, if tkinter is missing,
# if tcl/tk is not the 8.5+ needed for ttk widgets,
diff --git a/Lib/test/test_tix.py b/Lib/test/test_tix.py
index 8a60c7c8e1fbd5..454baeb38a9342 100644
--- a/Lib/test/test_tix.py
+++ b/Lib/test/test_tix.py
@@ -2,6 +2,11 @@
import unittest
from test import support
from test.support import import_helper
+from test.support import check_sanitizer
+
+if check_sanitizer(address=True, memory=True):
+ raise unittest.SkipTest("Tests involvin libX11 can SEGFAULT on ASAN/MSAN builds")
+
# Skip this test if the _tkinter module wasn't built.
_tkinter = import_helper.import_module('_tkinter')
diff --git a/Lib/test/test_tk.py b/Lib/test/test_tk.py
index 69cc2322cd9aa8..8f90cbaba9f7c4 100644
--- a/Lib/test/test_tk.py
+++ b/Lib/test/test_tk.py
@@ -1,5 +1,11 @@
+import unittest
from test import support
from test.support import import_helper
+from test.support import check_sanitizer
+
+if check_sanitizer(address=True, memory=True):
+ raise unittest.SkipTest("Tests involvin libX11 can SEGFAULT on ASAN/MSAN builds")
+
# Skip test if _tkinter wasn't built.
import_helper.import_module('_tkinter')
diff --git a/Lib/test/test_ttk_guionly.py b/Lib/test/test_ttk_guionly.py
index 8f59839d066e68..c4919045d75cb7 100644
--- a/Lib/test/test_ttk_guionly.py
+++ b/Lib/test/test_ttk_guionly.py
@@ -1,6 +1,10 @@
import unittest
from test import support
from test.support import import_helper
+from test.support import check_sanitizer
+
+if check_sanitizer(address=True, memory=True):
+ raise unittest.SkipTest("Tests involvin libX11 can SEGFAULT on ASAN/MSAN builds")
# Skip this test if _tkinter wasn't built.
import_helper.import_module('_tkinter')
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