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

From: Greg Kroah-Hartman
Date: Sun Aug 18 2013 - 16:33:34 EST


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

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

From: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>

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@xxxxxxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Chris Zankel <chris@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
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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