[PATCH] modpost: Ignore ARC specific non-alloc sections

From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
To: Michal Marek <mmarek@suse.cz>, Rusty Russell <rusty@rustcorp.com.au>
Cc: Tony Lindgren <tony@atomide.com>, <linux-kernel@vger.kernel.org>,
	<linux-arch@vger.kernel.org>,
	Vineet Gupta <Vineet.Gupta1@synopsys.com>
Subject: [PATCH] modpost: Ignore ARC specific non-alloc sections
Date: Thu, 27 Dec 2012 16:17:20 +0530	[thread overview]
Message-ID: <1356605240-4555-2-git-send-email-vgupta@synopsys.com> (raw)
In-Reply-To: <1356605240-4555-1-git-send-email-vgupta@synopsys.com>

ARC relocatable object files contain one/more .gnu.linkonce.arcextmap.*
sections (collated by kernel/vmlinux.lds into .arcextmap in final link).
This section is used by debuggers to display the extension instructions
and need-not be loaded by target (hence !SHF_ALLOC)

The final kernel binary only needs .arcextmap entry in modpost's ignore
list (section_white_list[]). However when building modules, modpost scans
each object file individually, hence tripping on non-aggregated
.gnu.linkonce.arcextmap.* entries as well.

Thus need for the 2 entires !

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 scripts/mod/modpost.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 0d93856..f6f1030 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -830,6 +830,8 @@ static const char *section_white_list[] =
 	".toc*",
 	".xt.prop",				 /* xtensa */
 	".xt.lit",         /* xtensa */
+	".arcextmap*",			/* arc */
+	".gnu.linkonce.arcext*",	/* arc : modules */
 	NULL
 };
 
-- 
1.7.4.1

