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From: Robert Berger <gmane@reliableembeddedsystems.com>
To: linux-kernel <linux-kernel@vger.kernel.org>, linux-arm@vger.kernel.org
Subject: gcov/lkm/arm-eabi/gcc 4.7.2 issue
Date: Tue, 12 Feb 2013 19:43:07 +0200	[thread overview]
Message-ID: <511A7F2B.20308@reliableembeddedsystems.com> (raw)
In-Reply-To: <20120530203428.GB16686@redhat.com>

Hi,

There seems to be an issue with gcov on kernel modules if you have an
arm-eabi gcc on Linux 3.8-rc6 and previous versions.

./arm-linux-gnueabi-gcc --version
arm-linux-gnueabi-gcc (GCC) 4.7.2

I followed these instructions [1], but without much success.

In case I compile an out of tree kernel module with gcov enabled it can
not be loaded and issues the following error: "unknown relocation: 38"

I tried this patch [2] as well without success. It loads now, but still
nothing useful in /sys/kernel/debug/gcov

Please advise,

Regards,

Robert

[1]
http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=blob;f=Documentation/gcov.txt;h=e7ca6478cd93d4e6422d1ae92455b347dbdf7ccb;hb=HEAD

[2]
http://us.generation-nt.com/answer/add-gcov-support-arm-help-207630451.html

My public pgp key is available,at:
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x90320BF1


..."C treats you like a consenting adult. Pascal treats you like a
naughty child. Ada treats you like a criminal." -- (Bruce Powel Douglass)

My public pgp key is available,at:
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x90320BF1


      parent reply	other threads:[~2013-02-12 19:33 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-29 23:31 include/linux/dynamic_debug.h:111:2: error: implicit declaration of function ‘strstr’ shawn
2012-05-30  1:11 ` Jim Cromie
2012-05-30  1:43   ` shawn
2012-05-30  8:35     ` Jim Cromie
     [not found]       ` <1338387021.23168.18.camel@shawn-ssd>
     [not found]         ` <CAJfuBxxkMJbmvQMCZx=6GUqJ8c6VnT8jaRTKA-OWZLa0gG7kUw@mail.gmail.com>
2012-05-30 19:40           ` shawn
2012-05-30 20:34             ` Jason Baron
2012-05-30 20:51               ` shawn
2013-02-12 17:43               ` Robert Berger [this message]

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