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gh-111178: fix UBSan failures for Python/legacy_tracing.c #131611

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Merged
picnixz merged 7 commits into from
Mar 24, 2025
Merged

gh-111178: fix UBSan failures for Python/legacy_tracing.c #131611

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77b2576
fix UBSan failures for `legacy_tracing.c`
picnixz Mar 20, 2025
af9703a
fixup
picnixz Mar 20, 2025
b21ae73
fixup
picnixz Mar 20, 2025
2a3fea5
Merge remote-tracking branch 'upstream/main' into fix/ubsan/sys-funcs…
picnixz Mar 23, 2025
e5ab45a
Merge remote-tracking branch 'upstream/main' into fix/ubsan/iterobjec…
picnixz Mar 23, 2025
951f70c
renaming
picnixz Mar 23, 2025
256eb57
fix compilation
picnixz Mar 23, 2025
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fixup
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@picnixz
picnixz committed Mar 20, 2025
commit af9703ad34693e94f665811f3a0e64801776c57e
67 changes: 37 additions & 30 deletions Python/legacy_tracing.c
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Original file line number Diff line number Diff line change
Expand Up @@ -59,9 +59,9 @@ sys_profile_start(
PyObject *op, PyObject *const *args,
size_t nargsf, PyObject *kwnames
) {
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
assert(kwnames == NULL);
assert(PyVectorcall_NARGS(nargsf) == 2);
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
return call_profile_func(self, Py_None);
}

Expand All @@ -70,9 +70,9 @@ sys_profile_throw(
PyObject *op, PyObject *const *args,
size_t nargsf, PyObject *kwnames
) {
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
assert(kwnames == NULL);
assert(PyVectorcall_NARGS(nargsf) == 3);
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
return call_profile_func(self, Py_None);
}

Expand All @@ -81,9 +81,9 @@ sys_profile_return(
PyObject *op, PyObject *const *args,
size_t nargsf, PyObject *kwnames
) {
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
assert(kwnames == NULL);
assert(PyVectorcall_NARGS(nargsf) == 3);
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
return call_profile_func(self, args[2]);
}

Expand All @@ -92,9 +92,9 @@ sys_profile_unwind(
PyObject *op, PyObject *const *args,
size_t nargsf, PyObject *kwnames
) {
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
assert(kwnames == NULL);
assert(PyVectorcall_NARGS(nargsf) == 3);
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
return call_profile_func(self, NULL);
}

Expand All @@ -103,9 +103,9 @@ sys_profile_call_or_return(
PyObject *op, PyObject *const *args,
size_t nargsf, PyObject *kwnames
) {
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
assert(kwnames == NULL);
assert(PyVectorcall_NARGS(nargsf) == 4);
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
PyObject *callable = args[2];
if (PyCFunction_Check(callable)) {
return call_profile_func(self, callable);
Expand Down Expand Up @@ -190,9 +190,10 @@ call_trace_func(_PyLegacyEventHandler *self, PyObject *arg)

static PyObject *
sys_trace_exception_func(
_PyLegacyEventHandler *self, PyObject *const *args,
PyObject *op, PyObject *const *args,
size_t nargsf, PyObject *kwnames
) {
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
assert(kwnames == NULL);
assert(PyVectorcall_NARGS(nargsf) == 3);
PyObject *exc = args[2];
Expand All @@ -214,39 +215,43 @@ sys_trace_exception_func(

static PyObject *
sys_trace_start(
_PyLegacyEventHandler *self, PyObject *const *args,
PyObject *op, PyObject *const *args,
size_t nargsf, PyObject *kwnames
) {
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
assert(kwnames == NULL);
assert(PyVectorcall_NARGS(nargsf) == 2);
return call_trace_func(self, Py_None);
}

static PyObject *
sys_trace_throw(
_PyLegacyEventHandler *self, PyObject *const *args,
PyObject *op, PyObject *const *args,
size_t nargsf, PyObject *kwnames
) {
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
assert(kwnames == NULL);
assert(PyVectorcall_NARGS(nargsf) == 3);
return call_trace_func(self, Py_None);
}

static PyObject *
sys_trace_unwind(
_PyLegacyEventHandler *self, PyObject *const *args,
PyObject *op, PyObject *const *args,
size_t nargsf, PyObject *kwnames
) {
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
assert(kwnames == NULL);
assert(PyVectorcall_NARGS(nargsf) == 3);
return call_trace_func(self, NULL);
}

static PyObject *
sys_trace_return(
_PyLegacyEventHandler *self, PyObject *const *args,
PyObject *op, PyObject *const *args,
size_t nargsf, PyObject *kwnames
) {
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
assert(!PyErr_Occurred());
assert(kwnames == NULL);
assert(PyVectorcall_NARGS(nargsf) == 3);
Expand All @@ -258,19 +263,21 @@ sys_trace_return(

static PyObject *
sys_trace_yield(
_PyLegacyEventHandler *self, PyObject *const *args,
PyObject *op, PyObject *const *args,
size_t nargsf, PyObject *kwnames
) {
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
assert(kwnames == NULL);
assert(PyVectorcall_NARGS(nargsf) == 3);
return call_trace_func(self, args[2]);
}

static PyObject *
sys_trace_instruction_func(
_PyLegacyEventHandler *self, PyObject *const *args,
PyObject *op, PyObject *const *args,
size_t nargsf, PyObject *kwnames
) {
_PyLegacyEventHandler *self = _PyLegacyEventHandler_CAST(op);
assert(kwnames == NULL);
assert(PyVectorcall_NARGS(nargsf) == 2);
PyFrameObject *frame = PyEval_GetFrame();
Expand Down Expand Up @@ -520,48 +527,48 @@ setup_tracing(PyThreadState *tstate, Py_tracefunc func, PyObject *arg, PyObject
if (!tstate->interp->sys_trace_initialized) {
tstate->interp->sys_trace_initialized = true;
if (set_callbacks(PY_MONITORING_SYS_TRACE_ID,
(vectorcallfunc)sys_trace_start, PyTrace_CALL,
PY_MONITORING_EVENT_PY_START, PY_MONITORING_EVENT_PY_RESUME)) {
sys_trace_start, PyTrace_CALL,
PY_MONITORING_EVENT_PY_START, PY_MONITORING_EVENT_PY_RESUME)) {
return -1;
}
if (set_callbacks(PY_MONITORING_SYS_TRACE_ID,
(vectorcallfunc)sys_trace_throw, PyTrace_CALL,
PY_MONITORING_EVENT_PY_THROW, -1)) {
sys_trace_throw, PyTrace_CALL,
PY_MONITORING_EVENT_PY_THROW, -1)) {
return -1;
}
if (set_callbacks(PY_MONITORING_SYS_TRACE_ID,
(vectorcallfunc)sys_trace_return, PyTrace_RETURN,
PY_MONITORING_EVENT_PY_RETURN, -1)) {
sys_trace_return, PyTrace_RETURN,
PY_MONITORING_EVENT_PY_RETURN, -1)) {
return -1;
}
if (set_callbacks(PY_MONITORING_SYS_TRACE_ID,
(vectorcallfunc)sys_trace_yield, PyTrace_RETURN,
PY_MONITORING_EVENT_PY_YIELD, -1)) {
sys_trace_yield, PyTrace_RETURN,
PY_MONITORING_EVENT_PY_YIELD, -1)) {
return -1;
}
if (set_callbacks(PY_MONITORING_SYS_TRACE_ID,
(vectorcallfunc)sys_trace_exception_func, PyTrace_EXCEPTION,
PY_MONITORING_EVENT_RAISE, PY_MONITORING_EVENT_STOP_ITERATION)) {
sys_trace_exception_func, PyTrace_EXCEPTION,
PY_MONITORING_EVENT_RAISE, PY_MONITORING_EVENT_STOP_ITERATION)) {
return -1;
}
if (set_callbacks(PY_MONITORING_SYS_TRACE_ID,
(vectorcallfunc)sys_trace_line_func, PyTrace_LINE,
PY_MONITORING_EVENT_LINE, -1)) {
sys_trace_line_func, PyTrace_LINE,
PY_MONITORING_EVENT_LINE, -1)) {
return -1;
}
if (set_callbacks(PY_MONITORING_SYS_TRACE_ID,
(vectorcallfunc)sys_trace_unwind, PyTrace_RETURN,
PY_MONITORING_EVENT_PY_UNWIND, -1)) {
sys_trace_unwind, PyTrace_RETURN,
PY_MONITORING_EVENT_PY_UNWIND, -1)) {
return -1;
}
if (set_callbacks(PY_MONITORING_SYS_TRACE_ID,
(vectorcallfunc)sys_trace_jump_func, PyTrace_LINE,
PY_MONITORING_EVENT_JUMP, -1)) {
sys_trace_jump_func, PyTrace_LINE,
PY_MONITORING_EVENT_JUMP, -1)) {
return -1;
}
if (set_callbacks(PY_MONITORING_SYS_TRACE_ID,
(vectorcallfunc)sys_trace_instruction_func, PyTrace_OPCODE,
PY_MONITORING_EVENT_INSTRUCTION, -1)) {
sys_trace_instruction_func, PyTrace_OPCODE,
PY_MONITORING_EVENT_INSTRUCTION, -1)) {
return -1;
}
}
Expand Down