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Code Issues Releases Activity

gh-126255: Ignore warning about JIT being deactivated when perf support is active in test_embed.InitConfigTests.test_initconfig_api (#126302)

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Temporarily ignore warnings about JIT deactivation when perf support is active. 
This will be reverted as soon as a way is found to determine at run time whether the interpreter was built with JIT. Currently, this is not possible on Windows.


Co-authored-by: Kirill Podoprigora <kirill.bast9@mail.ru>
Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
This commit is contained in:
mpage 2024-11-01 16:10:58 -07:00 committed by GitHub
parent 8477951a1c
commit f0c6fccd08
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GPG Key ID: B5690EEEBB952194
4 changed files with 14 additions and 5 deletions
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5
Lib/test/test_embed.py
View File

@ -1,5 +1,6 @@
# Run the tests in Programs/_testembed.c (tests for the CPython embedding APIs)
from test import support
from test.libregrtest.utils import get_build_info
from test.support import import_helper, os_helper, threading_helper, MS_WINDOWS
import unittest
@ -1780,8 +1781,10 @@ class InitConfigTests(EmbeddingTestsMixin, unittest.TestCase):
'perf_profiling': 2,
}
config_dev_mode(preconfig, config)
# Temporarily enable ignore_stderr=True to ignore warnings on JIT builds
# See gh-126255 for more information
self.check_all_configs("test_initconfig_api", config, preconfig,
api=API_ISOLATED)
api=API_ISOLATED, ignore_stderr=True)
def test_initconfig_get_api(self):
self.run_embedded_interpreter("test_initconfig_get_api")

6
Lib/test/test_perf_profiler.py
View File

@ -210,14 +210,14 @@ class TestPerfTrampoline(unittest.TestCase):
sys.activate_stack_trampoline("perf")
sys.activate_stack_trampoline("perf")
"""
assert_python_ok("-c", code)
assert_python_ok("-c", code, PYTHON_JIT="0")
def test_sys_api_with_invalid_trampoline(self):
code = """if 1:
import sys
sys.activate_stack_trampoline("invalid")
"""
rc, out, err = assert_python_failure("-c", code)
rc, out, err = assert_python_failure("-c", code, PYTHON_JIT="0")
self.assertIn("invalid backend: invalid", err.decode())
def test_sys_api_get_status(self):
@ -228,7 +228,7 @@ class TestPerfTrampoline(unittest.TestCase):
sys.deactivate_stack_trampoline()
assert sys.is_stack_trampoline_active() is False
"""
assert_python_ok("-c", code)
assert_python_ok("-c", code, PYTHON_JIT="0")
def is_unwinding_reliable_with_frame_pointers():

7
Python/pylifecycle.c
View File

@ -1310,12 +1310,17 @@ init_interp_main(PyThreadState *tstate)
enabled = *env != '0';
}
if (enabled) {
#ifdef _Py_JIT
// perf profiler works fine with tier 2 interpreter, so
// only checking for a "real JIT".
if (config->perf_profiling > 0) {
(void)PyErr_WarnEx(
PyExc_RuntimeWarning,
"JIT deactivated as perf profiling support is active",
0);
} else {
} else
#endif
{
PyObject *opt = _PyOptimizer_NewUOpOptimizer();
if (opt == NULL) {
return _PyStatus_ERR("can't initialize optimizer");

1
Python/sysmodule.c
View File

@ -2290,6 +2290,7 @@ sys_activate_stack_trampoline_impl(PyObject *module, const char *backend)
#ifdef _Py_JIT
_PyOptimizerObject* optimizer = _Py_GetOptimizer();
if (optimizer != NULL) {
Py_DECREF(optimizer);
PyErr_SetString(PyExc_ValueError, "Cannot activate the perf trampoline if the JIT is active");
return NULL;
}