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sparc64: fix alignment bug in linker definition script

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The RO_DATA section were hardcoded to a specific
alignment in include/asm-generic/vmlinux.h.
But for sparc64 this did not match the PAGE_SIZE.

Introduce a new section definition named:
RO_DATA that takes actual alignment as parameter.
RODATA are provided for backward compatibility.

On top of this avoid hardcoding alignment for
sparc64 in reset of the script
Fix is build-tested on sparc64 + x86_64.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Sam Ravnborg 2007-05-29 21:29:00 +02:00
parent c420bc9f09
commit 4096b46f01
2 changed files with 13 additions and 8 deletions
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11
arch/sparc64/kernel/vmlinux.lds.S
View file

@ -1,5 +1,6 @@
/* ld script to make UltraLinux kernel */
#include <asm/page.h>
#include <asm-generic/vmlinux.lds.h>
OUTPUT_FORMAT("elf64-sparc", "elf64-sparc", "elf64-sparc")
@ -23,7 +24,7 @@ SECTIONS
_etext = .;
PROVIDE (etext = .);
RODATA
RO_DATA(PAGE_SIZE)
.data :
{
@ -44,7 +45,7 @@ SECTIONS
__ex_table : { *(__ex_table) }
__stop___ex_table = .;
. = ALIGN(8192);
. = ALIGN(PAGE_SIZE);
__init_begin = .;
.init.text : {
_sinittext = .;
@ -83,17 +84,17 @@ SECTIONS
__sun4v_2insn_patch_end = .;
#ifdef CONFIG_BLK_DEV_INITRD
. = ALIGN(8192);
. = ALIGN(PAGE_SIZE);
__initramfs_start = .;
.init.ramfs : { *(.init.ramfs) }
__initramfs_end = .;
#endif
. = ALIGN(8192);
. = ALIGN(PAGE_SIZE);
__per_cpu_start = .;
.data.percpu : { *(.data.percpu) }
__per_cpu_end = .;
. = ALIGN(8192);
. = ALIGN(PAGE_SIZE);
__init_end = .;
__bss_start = .;
.sbss : { *(.sbss) *(.scommon) }

10
include/asm-generic/vmlinux.lds.h
View file

@ -14,8 +14,8 @@
*(.data) \
*(.data.init.refok)
#define RODATA \
. = ALIGN(4096); \
#define RO_DATA(align) \
. = ALIGN((align)); \
.rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start_rodata) = .; \
*(.rodata) *(.rodata.*) \
@ -135,7 +135,11 @@
VMLINUX_SYMBOL(__end_rodata) = .; \
} \
\
. = ALIGN(4096);
. = ALIGN((align));
/* RODATA provided for backward compatibility.
* All archs are supposed to use RO_DATA() */
#define RODATA RO_DATA(4096)
#define SECURITY_INIT \
.security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \