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c6x: normalize global variables exported by vmlinux.lds

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Normalize global variables exported by vmlinux.lds to conform usage
guidelines from include/asm-generic/sections.h.

Use _text to mark the start of the kernel image including the head text,
and _stext to mark the start of the .text section.

This patch also fixes possible bugs due to current address layout that
[__init_begin, __init_end] is a sub-range of [_stext, _etext] and pages
within range [__init_begin, __init_end] will be freed by free_initmem().

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jiang Liu 2013-07-03 15:03:35 -07:00 committed by Linus Torvalds
parent 2e555f8d0f
commit 06256f8f71
1 changed files with 2 additions and 2 deletions
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4
arch/c6x/kernel/vmlinux.lds.S
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@ -54,16 +54,15 @@ SECTIONS
}
. = ALIGN(PAGE_SIZE);
__init_begin = .;
.init :
{
_stext = .;
_sinittext = .;
HEAD_TEXT
INIT_TEXT
_einittext = .;
}
__init_begin = _stext;
INIT_DATA_SECTION(16)
PERCPU_SECTION(128)
@ -74,6 +73,7 @@ SECTIONS
.text :
{
_text = .;
_stext = .;
TEXT_TEXT
SCHED_TEXT
LOCK_TEXT