[tip:x86/vdso] x86, vdso: Actually discard the .discard sections

[tip-bot for H. Peter Anvin]

Commit-ID:  26f5ef2e3c3c18f1dc31461ddf1db00b014edcd4
Gitweb:     http://git.kernel.org/tip/26f5ef2e3c3c18f1dc31461ddf1db00b014edcd4
Author:     H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
AuthorDate: Tue, 25 Mar 2014 13:41:36 -0700
Committer:  H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
CommitDate: Tue, 25 Mar 2014 13:41:36 -0700

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@xxxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-psizrnant8x3nrhbgvq2vekr@xxxxxxxxxxxxxx
---
 arch/x86/vdso/vdso-layout.lds.S | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/x86/vdso/vdso-layout.lds.S b/arch/x86/vdso/vdso-layout.lds.S
index c6d0e1b..2e263f3 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.*)
+	}
 }
 
 /*
--
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