linux-kernel - [ 30/34] xtensa: replace xtensa-specific _f{data,text} by

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Message-Id: <20130818203301.742116883@linuxfoundation.org>
Date:	Sun, 18 Aug 2013 13:34:43 -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, Geert Uytterhoeven <geert@...ux-m68k.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Chris Zankel <chris@...kel.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Guenter Roeck <linux@...ck-us.net>
Subject: [ 30/34] xtensa: replace xtensa-specific _f{data,text} by _s{data,text}

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

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

From: Geert Uytterhoeven <geert@...ux-m68k.org>

commit 5e7b6ed8e9bf3c8e3bb579fd0aec64f6526f8c81 upstream.

commit a2d063ac216c161 ("extable, core_kernel_data(): Make sure all archs
define _sdata") missed xtensa.  Xtensa does have a start of data marker,
but calls it _fdata, causing

    kernel/built-in.o:(.text+0x964): undefined reference to `_sdata'

_stext was already defined, but it was duplicated by _fdata.

Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Chris Zankel <chris@...kel.net>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/xtensa/kernel/vmlinux.lds.S |    3 +--
 arch/xtensa/mm/init.c            |    6 +++---
 2 files changed, 4 insertions(+), 5 deletions(-)

--- a/arch/xtensa/kernel/vmlinux.lds.S
+++ b/arch/xtensa/kernel/vmlinux.lds.S
@@ -83,7 +83,6 @@ SECTIONS
 
   _text = .;
   _stext = .;
-  _ftext = .;
 
   .text :
   {
@@ -112,7 +111,7 @@ SECTIONS
   EXCEPTION_TABLE(16)
   /* Data section */
 
-  _fdata = .;
+  _sdata = .;
   RW_DATA_SECTION(XCHAL_ICACHE_LINESIZE, PAGE_SIZE, THREAD_SIZE)
   _edata = .;
 
--- a/arch/xtensa/mm/init.c
+++ b/arch/xtensa/mm/init.c
@@ -29,7 +29,7 @@
 
 /* References to section boundaries */
 
-extern char _ftext, _etext, _fdata, _edata, _rodata_end;
+extern char _stext, _etext, _sdata, _edata, _rodata_end;
 extern char __init_begin, __init_end;
 
 /*
@@ -197,8 +197,8 @@ void __init mem_init(void)
 			reservedpages++;
 	}
 
-	codesize =  (unsigned long) &_etext - (unsigned long) &_ftext;
-	datasize =  (unsigned long) &_edata - (unsigned long) &_fdata;
+	codesize =  (unsigned long) &_etext - (unsigned long) &_stext;
+	datasize =  (unsigned long) &_edata - (unsigned long) &_sdata;
 	initsize =  (unsigned long) &__init_end - (unsigned long) &__init_begin;
 
 	printk("Memory: %luk/%luk available (%ldk kernel code, %ldk reserved, "


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