linux-kernel - [ 29/34] xtensa: fix linker script transformation for .text.unlikely

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Date:	Sun, 18 Aug 2013 13:34:42 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Max Filippov <jcmvbkbc@...il.com>,
	Chris Zankel <chris@...kel.net>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Guenter Roeck <linux@...ck-us.net>
Subject: [ 29/34] xtensa: fix linker script transformation for .text.unlikely

3.4-stable review patch.  If anyone has any objections, please let me know.

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

From: Max Filippov <jcmvbkbc@...il.com>

commit f6a03a12ecdbe0dd80a55f6df3b7206c5a403a49 upstream.

Now that binutils generate *.unlikely sections which don't follow
documented (info as) literal section naming rules, section name
transformation script doesn't work well resulting in the following
errors at vmlinux link time:

	main.c:(.text.unlikely+0x3): dangerous relocation: l32r: literal
				     placed after use: .literal.unlikely

Fix section name transformation script by adding specific rule for
.text.unlikely sections.

Signed-off-by: Max Filippov <jcmvbkbc@...il.com>
Signed-off-by: Chris Zankel <chris@...kel.net>
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/xtensa/kernel/Makefile |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/xtensa/kernel/Makefile
+++ b/arch/xtensa/kernel/Makefile
@@ -24,6 +24,7 @@ obj-$(CONFIG_MODULES) += xtensa_ksyms.o
 # Replicate rules in scripts/Makefile.build
 
 sed-y = -e 's/\*(\(\.[a-z]*it\|\.ref\|\)\.text)/*(\1.literal \1.text)/g'    \
+	-e 's/\.text\.unlikely/.literal.unlikely .text.unlikely/g' \
 	-e 's/\*(\(\.text\.[a-z]*\))/*(\1.literal \1)/g'
 
 quiet_cmd__cpp_lds_S = LDS     $@


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