https://github.com/python/cpython/commit/ccf1b0b1c18e6d00fb919bce107f2793bab0a471
commit: ccf1b0b1c18e6d00fb919bce107f2793bab0a471
branch: main
author: Mark Shannon <m...@hotpy.org>
committer: markshannon <m...@hotpy.org>
date: 2025-04-29T18:00:35+01:00
summary:
GH-132508: Use tagged integers on the evaluation stack for the last instruction
offset (GH-132545)
files:
A
Misc/NEWS.d/next/Core_and_Builtins/2025-04-15-10-09-49.gh-issue-132508.zVe3iI.rst
M Include/internal/pycore_interpframe.h
M Include/internal/pycore_stackref.h
M Objects/frameobject.c
M Python/bytecodes.c
M Python/ceval.c
M Python/executor_cases.c.h
M Python/gc.c
M Python/gc_free_threading.c
M Python/generated_cases.c.h
M Python/pystate.c
M Python/stackrefs.c
M Tools/cases_generator/analyzer.py
M Tools/jit/_stencils.py
diff --git a/Include/internal/pycore_interpframe.h
b/Include/internal/pycore_interpframe.h
index 1d373d55ab2de8..d3fd218b27eed7 100644
--- a/Include/internal/pycore_interpframe.h
+++ b/Include/internal/pycore_interpframe.h
@@ -18,6 +18,7 @@ extern "C" {
((int)((IF)->instr_ptr - _PyFrame_GetBytecode((IF))))
static inline PyCodeObject *_PyFrame_GetCode(_PyInterpreterFrame *f) {
+ assert(!PyStackRef_IsNull(f->f_executable));
PyObject *executable = PyStackRef_AsPyObjectBorrow(f->f_executable);
assert(PyCode_Check(executable));
return (PyCodeObject *)executable;
diff --git a/Include/internal/pycore_stackref.h
b/Include/internal/pycore_stackref.h
index 5683b98470d3ea..a2acf311ff4c65 100644
--- a/Include/internal/pycore_stackref.h
+++ b/Include/internal/pycore_stackref.h
@@ -63,11 +63,13 @@ extern void _Py_stackref_associate(PyInterpreterState
*interp, PyObject *obj, _P
static const _PyStackRef PyStackRef_NULL = { .index = 0 };
-#define PyStackRef_None ((_PyStackRef){ .index = 1 } )
-#define PyStackRef_False ((_PyStackRef){ .index = 2 })
-#define PyStackRef_True ((_PyStackRef){ .index = 3 })
+// Use the first 3 even numbers for None, True and False.
+// Odd numbers are reserved for (tagged) integers
+#define PyStackRef_None ((_PyStackRef){ .index = 2 } )
+#define PyStackRef_False ((_PyStackRef){ .index = 4 })
+#define PyStackRef_True ((_PyStackRef){ .index = 6 })
-#define LAST_PREDEFINED_STACKREF_INDEX 3
+#define INITIAL_STACKREF_INDEX 8
static inline int
PyStackRef_IsNull(_PyStackRef ref)
@@ -96,6 +98,7 @@ PyStackRef_IsNone(_PyStackRef ref)
static inline PyObject *
_PyStackRef_AsPyObjectBorrow(_PyStackRef ref, const char *filename, int
linenumber)
{
+ assert((ref.index & 1) == 0);
_Py_stackref_record_borrow(ref, filename, linenumber);
return _Py_stackref_get_object(ref);
}
@@ -132,31 +135,45 @@ _PyStackRef_FromPyObjectImmortal(PyObject *obj, const
char *filename, int linenu
}
#define PyStackRef_FromPyObjectImmortal(obj)
_PyStackRef_FromPyObjectImmortal(_PyObject_CAST(obj), __FILE__, __LINE__)
+static inline bool
+PyStackRef_IsTaggedInt(_PyStackRef ref)
+{
+ return (ref.index & 1) == 1;
+}
+
static inline void
_PyStackRef_CLOSE(_PyStackRef ref, const char *filename, int linenumber)
{
+ if (PyStackRef_IsTaggedInt(ref)) {
+ return;
+ }
PyObject *obj = _Py_stackref_close(ref, filename, linenumber);
Py_DECREF(obj);
}
#define PyStackRef_CLOSE(REF) _PyStackRef_CLOSE((REF), __FILE__, __LINE__)
+
static inline void
_PyStackRef_XCLOSE(_PyStackRef ref, const char *filename, int linenumber)
{
if (PyStackRef_IsNull(ref)) {
return;
}
- PyObject *obj = _Py_stackref_close(ref, filename, linenumber);
- Py_DECREF(obj);
+ _PyStackRef_CLOSE(ref, filename, linenumber);
}
#define PyStackRef_XCLOSE(REF) _PyStackRef_XCLOSE((REF), __FILE__, __LINE__)
static inline _PyStackRef
_PyStackRef_DUP(_PyStackRef ref, const char *filename, int linenumber)
{
- PyObject *obj = _Py_stackref_get_object(ref);
- Py_INCREF(obj);
- return _Py_stackref_create(obj, filename, linenumber);
+ if (PyStackRef_IsTaggedInt(ref)) {
+ return ref;
+ }
+ else {
+ PyObject *obj = _Py_stackref_get_object(ref);
+ Py_INCREF(obj);
+ return _Py_stackref_create(obj, filename, linenumber);
+ }
}
#define PyStackRef_DUP(REF) _PyStackRef_DUP(REF, __FILE__, __LINE__)
@@ -210,8 +227,40 @@ _PyStackRef_FromPyObjectNewMortal(PyObject *obj, const
char *filename, int linen
extern int PyStackRef_Is(_PyStackRef a, _PyStackRef b);
+extern bool PyStackRef_IsTaggedInt(_PyStackRef ref);
+
+extern intptr_t PyStackRef_UntagInt(_PyStackRef ref);
+
+extern _PyStackRef PyStackRef_TagInt(intptr_t i);
+
+extern bool
+PyStackRef_IsNullOrInt(_PyStackRef ref);
+
#else
+#define Py_INT_TAG 3
+
+static inline bool
+PyStackRef_IsTaggedInt(_PyStackRef i)
+{
+ return (i.bits & Py_INT_TAG) == Py_INT_TAG;
+}
+
+static inline _PyStackRef
+PyStackRef_TagInt(intptr_t i)
+{
+ assert(Py_ARITHMETIC_RIGHT_SHIFT(intptr_t, (i << 2), 2) == i);
+ return (_PyStackRef){ .bits = ((((uintptr_t)i) << 2) | Py_INT_TAG) };
+}
+
+static inline intptr_t
+PyStackRef_UntagInt(_PyStackRef i)
+{
+ assert((i.bits & Py_INT_TAG) == Py_INT_TAG);
+ intptr_t val = (intptr_t)i.bits;
+ return Py_ARITHMETIC_RIGHT_SHIFT(intptr_t, val, 2);
+}
+
#ifdef Py_GIL_DISABLED
@@ -232,6 +281,8 @@ static const _PyStackRef PyStackRef_NULL = { .bits =
Py_TAG_DEFERRED};
#define PyStackRef_IsTrue(ref) (PyStackRef_AsPyObjectBorrow(ref) == Py_True)
#define PyStackRef_IsFalse(ref) (PyStackRef_AsPyObjectBorrow(ref) == Py_False)
+#define PyStackRef_IsNullOrInt(stackref) (PyStackRef_IsNull(stackref) ||
PyStackRef_IsTaggedInt(stackref))
+
static inline PyObject *
PyStackRef_AsPyObjectBorrow(_PyStackRef stackref)
{
@@ -451,6 +502,7 @@ PyStackRef_RefcountOnObject(_PyStackRef ref)
static inline PyObject *
PyStackRef_AsPyObjectBorrow(_PyStackRef ref)
{
+ assert(!PyStackRef_IsTaggedInt(ref));
return BITS_TO_PTR_MASKED(ref);
}
@@ -587,6 +639,12 @@ PyStackRef_CLOSE(_PyStackRef ref)
}
#endif
+static inline bool
+PyStackRef_IsNullOrInt(_PyStackRef ref)
+{
+ return PyStackRef_IsNull(ref) || PyStackRef_IsTaggedInt(ref);
+}
+
static inline void
PyStackRef_CLOSE_SPECIALIZED(_PyStackRef ref, destructor destruct)
{
@@ -726,7 +784,7 @@ _Py_TryXGetStackRef(PyObject **src, _PyStackRef *out)
// Like Py_VISIT but for _PyStackRef fields
#define _Py_VISIT_STACKREF(ref) \
do { \
- if (!PyStackRef_IsNull(ref)) { \
+ if (!PyStackRef_IsNullOrInt(ref)) { \
int vret = _PyGC_VisitStackRef(&(ref), visit, arg); \
if (vret) \
return vret; \
diff --git
a/Misc/NEWS.d/next/Core_and_Builtins/2025-04-15-10-09-49.gh-issue-132508.zVe3iI.rst
b/Misc/NEWS.d/next/Core_and_Builtins/2025-04-15-10-09-49.gh-issue-132508.zVe3iI.rst
new file mode 100644
index 00000000000000..1f4fe1d5f4e2da
--- /dev/null
+++
b/Misc/NEWS.d/next/Core_and_Builtins/2025-04-15-10-09-49.gh-issue-132508.zVe3iI.rst
@@ -0,0 +1,3 @@
+Uses tagged integers on the evaluation stack to represent the instruction
+offsets when reraising an exception. This avoids the need to box the integer
+which could fail in low memory conditions.
diff --git a/Objects/frameobject.c b/Objects/frameobject.c
index db4e4b7e1939de..7a62219c139ee5 100644
--- a/Objects/frameobject.c
+++ b/Objects/frameobject.c
@@ -1813,15 +1813,16 @@ frame_lineno_set_impl(PyFrameObject *self, PyObject
*value)
start_stack = pop_value(start_stack);
}
while (start_stack > best_stack) {
+ _PyStackRef popped = _PyFrame_StackPop(self->f_frame);
if (top_of_stack(start_stack) == Except) {
/* Pop exception stack as well as the evaluation stack */
- PyObject *exc =
PyStackRef_AsPyObjectBorrow(_PyFrame_StackPop(self->f_frame));
+ PyObject *exc = PyStackRef_AsPyObjectBorrow(popped);
assert(PyExceptionInstance_Check(exc) || exc == Py_None);
PyThreadState *tstate = _PyThreadState_GET();
Py_XSETREF(tstate->exc_info->exc_value, exc == Py_None ? NULL :
exc);
}
else {
- PyStackRef_XCLOSE(_PyFrame_StackPop(self->f_frame));
+ PyStackRef_XCLOSE(popped);
}
start_stack = pop_value(start_stack);
}
diff --git a/Python/bytecodes.c b/Python/bytecodes.c
index 4e2dec7c9852ee..6592bc57ed20a1 100644
--- a/Python/bytecodes.c
+++ b/Python/bytecodes.c
@@ -1384,16 +1384,7 @@ dummy_func(
assert(oparg >= 0 && oparg <= 2);
if (oparg) {
- PyObject *lasti = PyStackRef_AsPyObjectBorrow(values[0]);
- if (PyLong_Check(lasti)) {
- frame->instr_ptr = _PyFrame_GetBytecode(frame) +
PyLong_AsLong(lasti);
- assert(!_PyErr_Occurred(tstate));
- }
- else {
- _PyErr_SetString(tstate, PyExc_SystemError, "lasti is not
an int");
- Py_DECREF(exc);
- ERROR_NO_POP();
- }
+ frame->instr_ptr = _PyFrame_GetBytecode(frame) +
PyStackRef_UntagInt(values[0]);
}
assert(exc && PyExceptionInstance_Check(exc));
_PyErr_SetRaisedException(tstate, exc);
@@ -3472,7 +3463,7 @@ dummy_func(
if (tb == NULL) {
tb = Py_None;
}
- assert(PyStackRef_LongCheck(lasti));
+ assert(PyStackRef_IsTaggedInt(lasti));
(void)lasti; // Shut up compiler warning if asserts are off
PyObject *stack[5] = {NULL,
PyStackRef_AsPyObjectBorrow(exit_self), exc, val_o, tb};
int has_self = !PyStackRef_IsNull(exit_self);
@@ -5378,11 +5369,8 @@ dummy_func(
}
if (lasti) {
int frame_lasti = _PyInterpreterFrame_LASTI(frame);
- PyObject *lasti = PyLong_FromLong(frame_lasti);
- if (lasti == NULL) {
- goto exception_unwind;
- }
- _PyFrame_StackPush(frame, PyStackRef_FromPyObjectSteal(lasti));
+ _PyStackRef lasti = PyStackRef_TagInt(frame_lasti);
+ _PyFrame_StackPush(frame, lasti);
}
/* Make the raw exception data
diff --git a/Python/ceval.c b/Python/ceval.c
index fb72fd49811e2d..19a1c9529dd9aa 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -146,6 +146,10 @@ dump_item(_PyStackRef item)
printf("<NULL>");
return;
}
+ if (PyStackRef_IsTaggedInt(item)) {
+ printf("%" PRId64, (int64_t)PyStackRef_UntagInt(item));
+ return;
+ }
PyObject *obj = PyStackRef_AsPyObjectBorrow(item);
if (obj == NULL) {
printf("<nil>");
diff --git a/Python/executor_cases.c.h b/Python/executor_cases.c.h
index 09998090575e31..4e57906c84a154 100644
--- a/Python/executor_cases.c.h
+++ b/Python/executor_cases.c.h
@@ -4470,7 +4470,7 @@
if (tb == NULL) {
tb = Py_None;
}
- assert(PyStackRef_LongCheck(lasti));
+ assert(PyStackRef_IsTaggedInt(lasti));
(void)lasti;
PyObject *stack[5] = {NULL,
PyStackRef_AsPyObjectBorrow(exit_self), exc, val_o, tb};
int has_self = !PyStackRef_IsNull(exit_self);
diff --git a/Python/gc.c b/Python/gc.c
index dad088e09f872f..58224acff2cdd9 100644
--- a/Python/gc.c
+++ b/Python/gc.c
@@ -547,6 +547,7 @@ _PyGC_VisitStackRef(_PyStackRef *ref, visitproc visit, void
*arg)
// This is a bit tricky! We want to ignore stackrefs with embedded
// refcounts when computing the incoming references, but otherwise treat
// them like normal.
+ assert(!PyStackRef_IsTaggedInt(*ref));
if (!PyStackRef_RefcountOnObject(*ref) && (visit == visit_decref)) {
return 0;
}
@@ -560,7 +561,9 @@ _PyGC_VisitFrameStack(_PyInterpreterFrame *frame, visitproc
visit, void *arg)
_PyStackRef *ref = _PyFrame_GetLocalsArray(frame);
/* locals and stack */
for (; ref < frame->stackpointer; ref++) {
- _Py_VISIT_STACKREF(*ref);
+ if (!PyStackRef_IsTaggedInt(*ref)) {
+ _Py_VISIT_STACKREF(*ref);
+ }
}
return 0;
}
@@ -1495,8 +1498,11 @@ mark_stacks(PyInterpreterState *interp, PyGC_Head
*visited, int visited_space, b
objects_marked += move_to_reachable(func, &reachable,
visited_space);
while (sp > locals) {
sp--;
+ if (PyStackRef_IsNullOrInt(*sp)) {
+ continue;
+ }
PyObject *op = PyStackRef_AsPyObjectBorrow(*sp);
- if (op == NULL || _Py_IsImmortal(op)) {
+ if (_Py_IsImmortal(op)) {
continue;
}
if (_PyObject_IS_GC(op)) {
diff --git a/Python/gc_free_threading.c b/Python/gc_free_threading.c
index fa4cb56f01e800..d22307ae4ff74e 100644
--- a/Python/gc_free_threading.c
+++ b/Python/gc_free_threading.c
@@ -265,7 +265,7 @@ frame_disable_deferred_refcounting(_PyInterpreterFrame
*frame)
frame->f_funcobj = PyStackRef_AsStrongReference(frame->f_funcobj);
for (_PyStackRef *ref = frame->localsplus; ref < frame->stackpointer;
ref++) {
- if (!PyStackRef_IsNull(*ref) && PyStackRef_IsDeferred(*ref)) {
+ if (!PyStackRef_IsNullOrInt(*ref) && PyStackRef_IsDeferred(*ref)) {
*ref = PyStackRef_AsStrongReference(*ref);
}
}
@@ -420,7 +420,7 @@ gc_visit_heaps(PyInterpreterState *interp,
mi_block_visit_fun *visitor,
static inline void
gc_visit_stackref(_PyStackRef stackref)
{
- if (PyStackRef_IsDeferred(stackref) && !PyStackRef_IsNull(stackref)) {
+ if (PyStackRef_IsDeferred(stackref) && !PyStackRef_IsNullOrInt(stackref)) {
PyObject *obj = PyStackRef_AsPyObjectBorrow(stackref);
if (_PyObject_GC_IS_TRACKED(obj) && !gc_is_frozen(obj)) {
gc_add_refs(obj, 1);
@@ -817,7 +817,7 @@ gc_abort_mark_alive(PyInterpreterState *interp,
static int
gc_visit_stackref_mark_alive(gc_mark_args_t *args, _PyStackRef stackref)
{
- if (!PyStackRef_IsNull(stackref)) {
+ if (!PyStackRef_IsNullOrInt(stackref)) {
PyObject *op = PyStackRef_AsPyObjectBorrow(stackref);
if (gc_mark_enqueue(op, args) < 0) {
return -1;
@@ -1706,6 +1706,7 @@ _PyGC_VisitStackRef(_PyStackRef *ref, visitproc visit,
void *arg)
// This is a bit tricky! We want to ignore deferred references when
// computing the incoming references, but otherwise treat them like
// regular references.
+ assert(!PyStackRef_IsTaggedInt(*ref));
if (!PyStackRef_IsDeferred(*ref) ||
(visit != visit_decref && visit != visit_decref_unreachable))
{
diff --git a/Python/generated_cases.c.h b/Python/generated_cases.c.h
index fbd1f2349d0c4a..7d3e6c7cbc9eab 100644
--- a/Python/generated_cases.c.h
+++ b/Python/generated_cases.c.h
@@ -10191,20 +10191,7 @@
PyObject *exc = PyStackRef_AsPyObjectSteal(exc_st);
assert(oparg >= 0 && oparg <= 2);
if (oparg) {
- PyObject *lasti = PyStackRef_AsPyObjectBorrow(values[0]);
- if (PyLong_Check(lasti)) {
- frame->instr_ptr = _PyFrame_GetBytecode(frame) +
PyLong_AsLong(lasti);
- assert(!_PyErr_Occurred(tstate));
- }
- else {
- stack_pointer += -1;
- assert(WITHIN_STACK_BOUNDS());
- _PyFrame_SetStackPointer(frame, stack_pointer);
- _PyErr_SetString(tstate, PyExc_SystemError, "lasti is not
an int");
- Py_DECREF(exc);
- stack_pointer = _PyFrame_GetStackPointer(frame);
- JUMP_TO_LABEL(error);
- }
+ frame->instr_ptr = _PyFrame_GetBytecode(frame) +
PyStackRef_UntagInt(values[0]);
}
assert(exc && PyExceptionInstance_Check(exc));
stack_pointer += -1;
@@ -12059,7 +12046,7 @@
if (tb == NULL) {
tb = Py_None;
}
- assert(PyStackRef_LongCheck(lasti));
+ assert(PyStackRef_IsTaggedInt(lasti));
(void)lasti;
PyObject *stack[5] = {NULL,
PyStackRef_AsPyObjectBorrow(exit_self), exc, val_o, tb};
int has_self = !PyStackRef_IsNull(exit_self);
@@ -12231,11 +12218,8 @@ JUMP_TO_LABEL(error);
}
if (lasti) {
int frame_lasti = _PyInterpreterFrame_LASTI(frame);
- PyObject *lasti = PyLong_FromLong(frame_lasti);
- if (lasti == NULL) {
- JUMP_TO_LABEL(exception_unwind);
- }
- _PyFrame_StackPush(frame, PyStackRef_FromPyObjectSteal(lasti));
+ _PyStackRef lasti = PyStackRef_TagInt(frame_lasti);
+ _PyFrame_StackPush(frame, lasti);
}
PyObject *exc = _PyErr_GetRaisedException(tstate);
_PyFrame_StackPush(frame, PyStackRef_FromPyObjectSteal(exc));
diff --git a/Python/pystate.c b/Python/pystate.c
index 8c0bab3f2b48f8..b0c79ba9d3e645 100644
--- a/Python/pystate.c
+++ b/Python/pystate.c
@@ -684,7 +684,7 @@ init_interpreter(PyInterpreterState *interp,
interp->dtoa = (struct _dtoa_state)_dtoa_state_INIT(interp);
}
#if !defined(Py_GIL_DISABLED) && defined(Py_STACKREF_DEBUG)
- interp->next_stackref = 1;
+ interp->next_stackref = INITIAL_STACKREF_INDEX;
_Py_hashtable_allocator_t alloc = {
.malloc = malloc,
.free = free,
diff --git a/Python/stackrefs.c b/Python/stackrefs.c
index 1a2f66feb04c4d..979a6b1c62820a 100644
--- a/Python/stackrefs.c
+++ b/Python/stackrefs.c
@@ -70,7 +70,7 @@ _Py_stackref_close(_PyStackRef ref, const char *filename, int
linenumber)
}
PyObject *obj;
- if (ref.index <= LAST_PREDEFINED_STACKREF_INDEX) {
+ if (ref.index < INITIAL_STACKREF_INDEX) {
if (ref.index == 0) {
_Py_FatalErrorFormat(__func__, "Passing NULL to PyStackRef_CLOSE
at %s:%d\n", filename, linenumber);
}
@@ -113,7 +113,8 @@ _Py_stackref_create(PyObject *obj, const char *filename,
int linenumber)
Py_FatalError("Cannot create a stackref for NULL");
}
PyInterpreterState *interp = PyInterpreterState_Get();
- uint64_t new_id = interp->next_stackref++;
+ uint64_t new_id = interp->next_stackref;
+ interp->next_stackref = new_id + 2;
TableEntry *entry = make_table_entry(obj, filename, linenumber);
if (entry == NULL) {
Py_FatalError("No memory left for stackref debug table");
@@ -127,7 +128,7 @@ _Py_stackref_create(PyObject *obj, const char *filename,
int linenumber)
void
_Py_stackref_record_borrow(_PyStackRef ref, const char *filename, int
linenumber)
{
- if (ref.index <= LAST_PREDEFINED_STACKREF_INDEX) {
+ if (ref.index < INITIAL_STACKREF_INDEX) {
return;
}
PyInterpreterState *interp = PyInterpreterState_Get();
@@ -151,8 +152,7 @@ _Py_stackref_record_borrow(_PyStackRef ref, const char
*filename, int linenumber
void
_Py_stackref_associate(PyInterpreterState *interp, PyObject *obj, _PyStackRef
ref)
{
- assert(interp->next_stackref >= ref.index);
- interp->next_stackref = ref.index+1;
+ assert(ref.index < INITIAL_STACKREF_INDEX);
TableEntry *entry = make_table_entry(obj, "builtin-object", 0);
if (entry == NULL) {
Py_FatalError("No memory left for stackref debug table");
@@ -197,4 +197,23 @@ _PyStackRef_CLOSE_SPECIALIZED(_PyStackRef ref, destructor
destruct, const char *
_Py_DECREF_SPECIALIZED(obj, destruct);
}
+_PyStackRef PyStackRef_TagInt(intptr_t i)
+{
+ return (_PyStackRef){ .index = (i << 1) + 1 };
+}
+
+intptr_t
+PyStackRef_UntagInt(_PyStackRef i)
+{
+ assert(PyStackRef_IsTaggedInt(i));
+ intptr_t val = (intptr_t)i.index;
+ return Py_ARITHMETIC_RIGHT_SHIFT(intptr_t, val, 1);
+}
+
+bool
+PyStackRef_IsNullOrInt(_PyStackRef ref)
+{
+ return PyStackRef_IsNull(ref) || PyStackRef_IsTaggedInt(ref);
+}
+
#endif
diff --git a/Tools/cases_generator/analyzer.py
b/Tools/cases_generator/analyzer.py
index a217d7136a5401..dddbf2cf872e3d 100644
--- a/Tools/cases_generator/analyzer.py
+++ b/Tools/cases_generator/analyzer.py
@@ -678,6 +678,9 @@ def has_error_without_pop(op: parser.CodeDef) -> bool:
"JUMP_TO_LABEL",
"restart_backoff_counter",
"_Py_ReachedRecursionLimit",
+ "PyStackRef_IsTaggedInt",
+ "PyStackRef_TagInt",
+ "PyStackRef_UntagInt",
)
def check_escaping_calls(instr: parser.CodeDef, escapes: dict[SimpleStmt,
EscapingCall]) -> None:
diff --git a/Tools/jit/_stencils.py b/Tools/jit/_stencils.py
index 22d3014351df90..03b0ba647b0db7 100644
--- a/Tools/jit/_stencils.py
+++ b/Tools/jit/_stencils.py
@@ -293,6 +293,7 @@ def process_relocations(
hole.kind
in {"R_AARCH64_CALL26", "R_AARCH64_JUMP26",
"ARM64_RELOC_BRANCH26"}
and hole.value is HoleValue.ZERO
+ and hole.symbol not in self.symbols
):
hole.func = "patch_aarch64_trampoline"
hole.need_state = True
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