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From: "dsmith at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sourceware.org
Subject: [Bug translator/19265] finding out-of-tree kernel modules only works with full paths, not relative paths
Date: Thu, 19 Nov 2015 14:57:00 -0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D19265

--- Comment #1 from David Smith <dsmith at redhat dot com> ---
Here's another oddity reported by Nan Xiao in

<https://sourceware.org/ml/systemtap/2015-q4/msg00152.html>:

=3D=3D=3D=3D
Another interesting thing: if there is a "-" in path, the SystemTap
also fail to parse:

# stap -v -l
'module("/root/Downloads/kernel-master/105.ops/kex.ko").function("*")'
Pass 1: parsed user script and 102 library script(s) using
78528virt/28740res/2700shr/26724data kb, in 170usr/20sys/183real ms.
Pass 2: analyzed script: 0 probe(s), 0 function(s), 0 embed(s), 0
global(s) using 79536virt/30480res/3164shr/27732data kb, in
0usr/50sys/53real ms.

Change kernel-master to kernel:

 # stap -v -l 'module("/root/Downloads/kernel/105.ops/kex.ko").function("*"=
)'
Pass 1: parsed user script and 102 library script(s) using
78528virt/28732res/2700shr/26724data kb, in 180usr/10sys/189real ms.
module("/root/Downloads/kernel/105.ops/kex.ko").function("_open@/root/Downl=
oads/kernel-master/105.ops/kex.c:21")
module("/root/Downloads/kernel/105.ops/kex.ko").function("_read@/root/Downl=
oads/kernel-master/105.ops/kex.c:45")
module("/root/Downloads/kernel/105.ops/kex.ko").function("_release@/root/Do=
wnloads/kernel-master/105.ops/kex.c:33")
module("/root/Downloads/kernel/105.ops/kex.ko").function("copy_to_user@/usr=
/src/linux-3.12.49-6/arch/x86/include/asm/uaccess_64.h:72")
module("/root/Downloads/kernel/105.ops/kex.ko").function("kex_cleanup@/root=
/Downloads/kernel-master/105.ops/kex.c:90")
module("/root/Downloads/kernel/105.ops/kex.ko").function("kex_init@/root/Do=
wnloads/kernel-master/105.ops/kex.c:61")
Pass 2: analyzed script: 6 probe(s), 0 function(s), 0 embed(s), 0
global(s) using 79548virt/30624res/3304shr/27744data kb, in
20usr/30sys/56real ms.
=3D=3D=3D=3D

--=20
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