From: Thiago Jung Bauermann <bauerman@linux•vnet.ibm.com>
To: linuxppc-dev@lists•ozlabs.org
Subject: Re: [PATCH] Remove kretprobe_trampoline_holder.
Date: Mon, 28 Mar 2016 17:29:41 -0300 [thread overview]
Message-ID: <2042788.6sAC9lOLzB@hactar> (raw)
In-Reply-To: <1459195592-6559-1-git-send-email-bauerman@linux.vnet.ibm.com>
Am Montag, 28 M=E4rz 2016, 17:06:32 schrieb Thiago Jung Bauermann:
> /home/bauermann/src/linux/tools/testing/selftests/ftrace/test.d/kprob=
e/kp
> robe_ftrace.tc: line 9: echo: write error: Invalid argument
>=20
> But even without my patch that testcase fails in the same way, so=
this
> is not a problem introduced by the patch.
That failure is on this line of kprobe_ftrace.tc:
echo _do_fork > set_ftrace_filter
This fails because on powerpc the function symbol has a dot prepended t=
o its=20
name:
# cat available_filter_functions | grep _do_fork
._do_fork
If I do s/_do_fork/._do_fork/ in kprobe_ftrace.tc then all ftrace kprob=
e=20
tests pass:
$ sudo ./ftracetest test.d/kprobe/
=3D=3D=3D Ftrace unit tests =3D=3D=3D
[1] Kprobe dynamic event - adding and removing [PASS]
[2] Kprobe dynamic event - busy event check [PASS]
[3] Kprobe dynamic event with arguments [PASS]
[4] Kprobe dynamic event with function tracer [PASS]
[5] Kretprobe dynamic event with arguments [PASS]
# of passed: 5
# of failed: 0
# of unresolved: 0
# of untested: 0
# of unsupported: 0
# of xfailed: 0
# of undefined(test bug): 0
--=20
[]'s
Thiago Jung Bauermann
IBM Linux Technology Center
next prev parent reply other threads:[~2016-03-28 20:29 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-24 17:17 [PATCH] Make kretprobe_trampoline symbol look like a function Thiago Jung Bauermann
2016-03-25 8:24 ` Michael Ellerman
2016-03-28 20:06 ` [PATCH] Remove kretprobe_trampoline_holder Thiago Jung Bauermann
2016-03-28 20:29 ` Thiago Jung Bauermann [this message]
2016-03-28 23:45 ` Michael Ellerman
2016-03-29 18:34 ` Thiago Jung Bauermann
2016-03-30 0:09 ` Michael Ellerman
2016-03-29 3:31 ` Michael Ellerman
2016-03-29 23:35 ` Thiago Jung Bauermann
2016-03-30 8:04 ` Naveen N. Rao
2016-03-30 8:46 ` Naveen N. Rao
2016-03-30 9:09 ` Michael Ellerman
2016-03-30 18:38 ` Thiago Jung Bauermann
2016-03-31 8:23 ` Naveen N. Rao
2016-03-31 20:16 ` Thiago Jung Bauermann
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