From: H. Peter Anvin <hpa@linux.intel.com>
Date: Tue, 25 Mar 2014 20:41:36 +0000 (-0700)
Subject: x86, vdso: Actually discard the .discard sections
X-Git-Tag: firefly_0821_release~176^2~4008^2~3
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=26f5ef2e3c3c18f1dc31461ddf1db00b014edcd4;p=firefly-linux-kernel-4.4.55.git

x86, vdso: Actually discard the .discard sections

The .discard/.discard.* sections are used to generate intermediate
results for the assembler (effectively "test assembly".)  The output
is waste and should not be retained.

Cc: Stefani Seibold <stefani@seibold.net>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/n/tip-psizrnant8x3nrhbgvq2vekr@git.kernel.org
---

diff --git a/arch/x86/vdso/vdso-layout.lds.S b/arch/x86/vdso/vdso-layout.lds.S
index c6d0e1bf27a4..2e263f367b13 100644
--- a/arch/x86/vdso/vdso-layout.lds.S
+++ b/arch/x86/vdso/vdso-layout.lds.S
@@ -62,6 +62,11 @@ SECTIONS
 	. = ALIGN(0x100);
 
 	.text		: { *(.text*) }			:text	=0x90909090
+
+	/DISCARD/ : {
+		*(.discard)
+		*(.discard.*)
+	}
 }
 
 /*