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From: "mcermak at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sourceware.org
Subject: [Bug runtime/29832] New: probe python.function.entry does not get
 hits (while .return does)
Date: Mon, 28 Nov 2022 12:31:44 +0000
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X-Bugzilla-Component: runtime
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X-Bugzilla-Who: mcermak at redhat dot com
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D29832

            Bug ID: 29832
           Summary: probe python.function.entry does not get hits (while
                    .return does)
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: runtime
          Assignee: systemtap at sourceware dot org
          Reporter: mcermak at redhat dot com
  Target Milestone: ---

With both systemtap-4.8-1.fc38 and the upstream git commit
342e5ec5619066f227ff9c3a5c,
probe python.function.entry isn't getting hits, while respective .return pr=
ob
gets hit just fine:

# cat test.py=20
import random, time
print(random.random())
time.sleep(3)
# stap -we 'probe process("/usr/lib*/libpython*.so*").mark("function__retur=
n")
{filename =3D user_string($arg1); if  (filename =3D~ "random") {println(fil=
ename)
exit()}}' -c 'python3 ./test.py >/dev/null'
/usr/lib64/python3.11/random.py
# stap -we 'probe process("/usr/lib*/libpython*.so*").mark("function__entry=
")
{filename =3D user_string($arg1); if  (filename =3D~ "random") {println(fil=
ename)
exit()}}' -c 'python3 ./test.py >/dev/null'
#=20
#

This is with python3-3.11.0-1.fc38.x86_64.

--=20
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