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GH-98894: Fix function__return and function__entry dTrace probe missing after GH-103083#125019

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GH-98894: Fix function__return and function__entry dTrace probe missing after GH-103083#125019

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f11b7c4
Fix `function__return` and `function__entry` dTrace probe missing aft…
Zheaoli Oct 6, 2024
ac683c0
Update news
Zheaoli Oct 6, 2024
b4d457f
Update generate case
Zheaoli Oct 6, 2024
4810510
Update Misc/NEWS.d/next/Core_and_Builtins/2024-10-06-17-46-24.gh-issu…
Zheaoli Oct 6, 2024
128e856
fix jit ci
Zheaoli Oct 6, 2024
e98e3a2
Merge branch 'main' of https://github.com/python/cpython into manjusa…
Zheaoli May 22, 2025
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Core_and_Builtins/2024-10-06-17-46-24.gh-issue-98894.uG2s-h.rst
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@@ -0,0 +1 @@
Fix ``function__return`` and ``function__entry`` dtrace probe missing after :gh:`103083`.
2 changes: 2 additions & 0 deletions Python/bytecodes.c
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Expand Up@@ -1149,6 +1149,7 @@ dummy_func(
DEAD(retval);
SAVE_STACK();
assert(STACK_LEVEL() == 0);
DTRACE_FUNCTION_EXIT();
_Py_LeaveRecursiveCallPy(tstate);
// GH-99729: We need to unlink the frame *before* clearing it:
_PyInterpreterFrame *dying = frame;
Expand DownExpand Up@@ -1324,6 +1325,7 @@ dummy_func(
_PyStackRef temp = retval;
DEAD(retval);
SAVE_STACK();
DTRACE_FUNCTION_EXIT();
tstate->exc_info = gen->gi_exc_state.previous_item;
gen->gi_exc_state.previous_item = NULL;
_Py_LeaveRecursiveCallPy(tstate);
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34 changes: 34 additions & 0 deletions Python/ceval.c
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Expand Up@@ -1078,6 +1078,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, _PyInterpreterFrame *frame, int
#endif
/* Because this avoids the RESUME, we need to update instrumentation */
_Py_Instrument(_PyFrame_GetCode(frame), tstate->interp);
DTRACE_FUNCTION_ENTRY();
next_instr = frame->instr_ptr;
monitor_throw(tstate, frame, next_instr);
stack_pointer = _PyFrame_GetStackPointer(frame);
Expand All@@ -1097,6 +1098,8 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, _PyInterpreterFrame *frame, int
_PyExecutorObject *current_executor = NULL;
const _PyUOpInstruction *next_uop = NULL;
#endif
DTRACE_FUNCTION_ENTRY();

#if Py_TAIL_CALL_INTERP
# if Py_STATS
return _TAIL_CALL_start_frame(frame, NULL, tstate, NULL, 0, lastopcode);
Expand DownExpand Up@@ -3279,6 +3282,37 @@ PyUnstable_Eval_RequestCodeExtraIndex(freefunc free)
return new_index;
}


static void
dtrace_function_entry(_PyInterpreterFrame *frame)
{
const char *filename;
const char *funcname;
int lineno;

PyCodeObject *code = _PyFrame_GetCode(frame);
filename = PyUnicode_AsUTF8(code->co_filename);
funcname = PyUnicode_AsUTF8(code->co_name);
lineno = PyUnstable_InterpreterFrame_GetLine(frame);

PyDTrace_FUNCTION_ENTRY(filename, funcname, lineno);
}

static void
dtrace_function_return(_PyInterpreterFrame *frame)
{
const char *filename;
const char *funcname;
int lineno;

PyCodeObject *code = _PyFrame_GetCode(frame);
filename = PyUnicode_AsUTF8(code->co_filename);
funcname = PyUnicode_AsUTF8(code->co_name);
lineno = PyUnstable_InterpreterFrame_GetLine(frame);

PyDTrace_FUNCTION_RETURN(filename, funcname, lineno);
}

/* Implement Py_EnterRecursiveCall() and Py_LeaveRecursiveCall() as functions
for the limited API. */

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11 changes: 11 additions & 0 deletions Python/ceval_macros.h
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Expand Up@@ -41,6 +41,8 @@
* the CFG.
*/

#include "pycore_frame.h"

#ifdef WITH_DTRACE
#define OR_DTRACE_LINE | (PyDTrace_LINE_ENABLED() ? 255 : 0)
#else
Expand DownExpand Up@@ -266,6 +268,15 @@ GETITEM(PyObject *v, Py_ssize_t i){
#define CONSTS() _PyFrame_GetCode(frame)->co_consts
#define NAMES() _PyFrame_GetCode(frame)->co_names

static void dtrace_function_entry(_PyInterpreterFrame *);
static void dtrace_function_return(_PyInterpreterFrame *);

#define DTRACE_FUNCTION_EXIT() \
if (PyDTrace_FUNCTION_RETURN_ENABLED()){\
dtrace_function_return(frame); \
}


#define DTRACE_FUNCTION_ENTRY() \
if (PyDTrace_FUNCTION_ENTRY_ENABLED()){\
dtrace_function_entry(frame); \
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2 changes: 2 additions & 0 deletions Python/executor_cases.c.h
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4 changes: 4 additions & 0 deletions Python/generated_cases.c.h
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1 change: 1 addition & 0 deletions Tools/jit/template.c
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Expand Up@@ -26,6 +26,7 @@
#include "pycore_setobject.h"
#include "pycore_sliceobject.h"
#include "pycore_stackref.h"
#include "pydtrace.h"
#include "pycore_template.h"
#include "pycore_tuple.h"
#include "pycore_unicodeobject.h"
Expand Down
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