Inconsistent behavior for sys.monitoring.events.CALL

[gaogaotiantian]

Bug report

Bug description:

According to the docs, CALL event should be emitted as long as there's a function call in Python code. However, CALL_FUNCTION_EX does it differently - it only emits the event when it's a call to C function. So monitoring the following code produce different results:

def f(a, b):
    return a + b
f(1, 2)  # Emits CALL event
args = (1, 2)
f(*args)  # Does NOT emit CALL event

I think we should just fix CALL_FUNCTION_EX to make it work the same as the other CALL instructions.

CPython versions tested on:

CPython main branch

Operating systems tested on:

Linux

Linked PRs

• gh-116626: Emit CALL events for all INSTRUMENTED_CALL_FUNCTION_EX #116627
• [3.12] gh-116626: Emit CALL events for all `INSTRUMENTED_CALL_FUNCT… #116732

[markshannon]

Yes, CALL_FUNCTION_EX should behave exactly like other CALL instructions.

[hugovk]

Closing because the PR has been merged and backported. Please re-open if there's more needed here.