From: Andrew Morton <akpm@linux-foundation.org>
To: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Cc: linux-kernel@vger.kernel.org, ltp-coverage@lists.sourceforge.net,
oberparleiter@googlemail.com
Subject: Re: [PATCH 6/6] gcov: architecture specific compile flag adjustments
Date: Wed, 11 Jun 2008 17:01:27 -0700 [thread overview]
Message-ID: <20080611170127.46b46d28.akpm@linux-foundation.org> (raw)
In-Reply-To: <4843F6F7.9020000@de.ibm.com>
On Mon, 02 Jun 2008 15:34:47 +0200
Peter Oberparleiter <peter.oberparleiter@de.ibm.com> wrote:
> Exclude code from profiling which is not linked to the main kernel or
> which is running in a context not compatible with the assumptions made
> by gcc's profiling code.
powerpc allmodconfig fails with
Error: External symbol '__gcov_init' referenced from prom_init.c
Error: External symbol '__gcov_merge_add' referenced from prom_init.c
This:
--- a/arch/powerpc/kernel/Makefile~a
+++ a/arch/powerpc/kernel/Makefile
@@ -12,6 +12,10 @@ CFLAGS_prom_init.o += -fPIC
CFLAGS_btext.o += -fPIC
endif
+ifdef CONFIG_GCOV_PROFILE
+CFLAGS_prom_init.o += -fno-profile-arcs -fno-test-coverage
+endif
+
didn't fix it so I gave up.
next prev parent reply other threads:[~2008-06-12 0:03 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-02 13:34 [PATCH 6/6] gcov: architecture specific compile flag adjustments Peter Oberparleiter
2008-06-12 0:01 ` Andrew Morton [this message]
2008-06-12 9:12 ` Peter Oberparleiter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20080611170127.46b46d28.akpm@linux-foundation.org \
--to=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=ltp-coverage@lists.sourceforge.net \
--cc=oberparleiter@googlemail.com \
--cc=peter.oberparleiter@de.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox