linux-kernel - [26/63] x86: Fix binutils-2.21 symbol related build failures

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Date:	Fri, 25 Mar 2011 16:44:02 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Sedat Dilek <sedat.dilek@...il.com>,
	Alexander van Heukelum <heukelum@...tmail.fm>,
	"H.J. Lu" <hjl.tools@...il.com>, Len Brown <len.brown@...el.com>,
	Pavel Machek <pavel@....cz>, "Rafael J. Wysocki" <rjw@...k.pl>,
	Ingo Molnar <mingo@...e.hu>
Subject: [26/63] x86: Fix binutils-2.21 symbol related build failures

2.6.38-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Sedat Dilek <sedat.dilek@...glemail.com>

commit 2ae9d293b14d17f35eff624272cfecac7979a2ee upstream.
[only 1/2 of the upstream commit was needed for stable - gkh]

New binutils version 2.21.0.20110302-1 started checking that the symbol
parameter to the .size directive matches the entry name's
symbol parameter, unearthing two mismatches:

  AS      arch/x86/kernel/acpi/wakeup_rm.o
  arch/x86/kernel/acpi/wakeup_rm.S: Assembler messages:
  arch/x86/kernel/acpi/wakeup_rm.S:12: Error: .size expression with symbol `wakeup_code_start' does not evaluate to a constant

  arch/x86/kernel/entry_32.S: Assembler messages:
  arch/x86/kernel/entry_32.S:1421: Error: .size expression with
  symbol `apf_page_fault' does not evaluate to a constant

The problem was discovered while using Debian's binutils
(2.21.0.20110302-1) and experimenting with binutils from
upstream.

Thanks Alexander and H.J. for the vital help.

Signed-off-by: Sedat Dilek <sedat.dilek@...il.com>
Cc: Alexander van Heukelum <heukelum@...tmail.fm>
Cc: H.J. Lu <hjl.tools@...il.com>
Cc: Len Brown <len.brown@...el.com>
Cc: Pavel Machek <pavel@....cz>
Cc: Rafael J. Wysocki <rjw@...k.pl>
LKML-Reference: <1299620364-21644-1-git-send-email-sedat.dilek@...il.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 arch/x86/kernel/entry_32.S |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -1413,7 +1413,7 @@ ENTRY(async_page_fault)
 	CFI_ADJUST_CFA_OFFSET 4
 	jmp error_code
 	CFI_ENDPROC
-END(apf_page_fault)
+END(async_page_fault)
 #endif

 /*

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