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[3.12] gh-103295: fix stack overwrite on 32-bit in perf map test harness (GH-104811) (#104823)

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gh-103295: fix stack overwrite on 32-bit in perf map test harness (GH-104811)
(cherry picked from commit e0b3078705)

Co-authored-by: Carl Meyer <carl@oddbird.net>
This commit is contained in:
Miss Islington (bot) 2023-05-23 15:34:50 -07:00 • committed by GitHub
parent 5c8418c5cc
commit 22c45c49bb
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 6 deletions
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17
Modules/_testinternalcapi.c
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@ -762,19 +762,24 @@ clear_extension(PyObject *self, PyObject *args)
static PyObject *
write_perf_map_entry(PyObject *self, PyObject *args)
{
PyObject *code_addr_v;
const void *code_addr;
unsigned int code_size;
const char *entry_name;
if (!PyArg_ParseTuple(args, "KIs", &code_addr, &code_size, &entry_name))
if (!PyArg_ParseTuple(args, "OIs", &code_addr_v, &code_size, &entry_name))
return NULL;
int ret = PyUnstable_WritePerfMapEntry(code_addr, code_size, entry_name);
if (ret == -1) {
PyErr_SetString(PyExc_OSError, "Failed to write performance map entry");
code_addr = PyLong_AsVoidPtr(code_addr_v);
if (code_addr == NULL) {
return NULL;
}
return Py_BuildValue("i", ret);
int ret = PyUnstable_WritePerfMapEntry(code_addr, code_size, entry_name);
if (ret < 0) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
return PyLong_FromLong(ret);
}
static PyObject *