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sh: Integrate sh64 bits in vmlinux_32.lds.S.
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This adds all of the requisite bits from vmlinux_64.lds.S in to the _32
variant, resulting in a unified and generic linker script that can be
shared across both.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt committed May 9, 2009
1 parent 7cd0378 commit c3e2586
Showing 1 changed file with 70 additions and 43 deletions.
113 changes: 70 additions & 43 deletions arch/sh/kernel/vmlinux_32.lds.S
Original file line number Diff line number Diff line change
@@ -1,17 +1,23 @@
/*
* ld script to make SuperH Linux kernel
* Written by Niibe Yutaka
* Written by Niibe Yutaka and Paul Mundt
*/
#include <asm/thread_info.h>
#include <asm/cache.h>
#include <asm-generic/vmlinux.lds.h>

#ifdef CONFIG_SUPERH64
#define LOAD_OFFSET CONFIG_PAGE_OFFSET
OUTPUT_ARCH(sh:sh5)
#else
OUTPUT_ARCH(sh)
#ifdef CONFIG_CPU_LITTLE_ENDIAN
OUTPUT_FORMAT("elf32-sh-linux", "elf32-sh-linux", "elf32-sh-linux")
#else
OUTPUT_FORMAT("elf32-shbig-linux", "elf32-shbig-linux", "elf32-shbig-linux")
#endif
OUTPUT_ARCH(sh)
#endif

#include <asm/thread_info.h>
#include <asm/cache.h>
#include <asm-generic/vmlinux.lds.h>

ENTRY(_start)
SECTIONS
{
Expand All @@ -24,28 +30,35 @@ SECTIONS
. = CONFIG_PAGE_OFFSET + CONFIG_MEMORY_START + CONFIG_ZERO_PAGE_OFFSET;
#endif

_text = .; /* Text and read-only data */

.empty_zero_page : {
.empty_zero_page : AT(ADDR(.empty_zero_page) - LOAD_OFFSET) {
*(.empty_zero_page)
} = 0

.text : {
.text : AT(ADDR(.text) - LOAD_OFFSET) {
_text = .; /* Text and read-only data */
HEAD_TEXT
TEXT_TEXT

#ifdef CONFIG_SUPERH64
*(.text64)
*(.text..SHmedia32)
#endif

SCHED_TEXT
LOCK_TEXT
KPROBES_TEXT
IRQENTRY_TEXT
*(.fixup)
*(.gnu.warning)
_etext = .; /* End of text section */
} = 0x0009

. = ALIGN(16); /* Exception table */
__start___ex_table = .;
__ex_table : { *(__ex_table) }
__stop___ex_table = .;

_etext = .; /* End of text section */
__ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
__start___ex_table = .;
*(__ex_table)
__stop___ex_table = .;
}

NOTES
RO_DATA(PAGE_SIZE)
Expand All @@ -54,13 +67,15 @@ SECTIONS
* Code which must be executed uncached and the associated data
*/
. = ALIGN(PAGE_SIZE);
__uncached_start = .;
.uncached.text : { *(.uncached.text) }
.uncached.data : { *(.uncached.data) }
__uncached_end = .;
.uncached : AT(ADDR(.uncached) - LOAD_OFFSET) {
__uncached_start = .;
*(.uncached.text)
*(.uncached.data)
__uncached_end = .;
}

. = ALIGN(THREAD_SIZE);
.data : { /* Data */
.data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */
*(.data.init_task)

. = ALIGN(L1_CACHE_BYTES);
Expand All @@ -84,51 +99,63 @@ SECTIONS
_edata = .; /* End of data section */

. = ALIGN(PAGE_SIZE); /* Init code and data */
__init_begin = .;
_sinittext = .;
.init.text : { INIT_TEXT }
_einittext = .;
.init.data : { INIT_DATA }
.init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
__init_begin = .;
_sinittext = .;
INIT_TEXT
_einittext = .;
}

.init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { INIT_DATA }

. = ALIGN(16);
__setup_start = .;
.init.setup : { *(.init.setup) }
__setup_end = .;
.init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
__setup_start = .;
*(.init.setup)
__setup_end = .;
}

__initcall_start = .;
.initcall.init : {
.initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
__initcall_start = .;
INITCALLS
__initcall_end = .;
}

.con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
__con_initcall_start = .;
*(.con_initcall.init)
__con_initcall_end = .;
}
__initcall_end = .;
__con_initcall_start = .;
.con_initcall.init : { *(.con_initcall.init) }
__con_initcall_end = .;

SECURITY_INIT

#ifdef CONFIG_BLK_DEV_INITRD
. = ALIGN(PAGE_SIZE);
__initramfs_start = .;
.init.ramfs : { *(.init.ramfs) }
__initramfs_end = .;
.init.ramfs : AT(ADDR(.init_ramfs) - LOAD_OFFSET) {
__initramfs_start = .;
*(.init.ramfs)
__initramfs_end = .;
}
#endif

. = ALIGN(4);
__machvec_start = .;
.machvec.init : { *(.machvec.init) }
__machvec_end = .;
.machvec.init : AT(ADDR(.machvec.init) - LOAD_OFFSET) {
__machvec_start = .;
*(.machvec.init)
__machvec_end = .;
}

PERCPU(PAGE_SIZE)

/*
* .exit.text is discarded at runtime, not link time, to deal with
* references from __bug_table
*/
.exit.text : { EXIT_TEXT }
.exit.data : { EXIT_DATA }
.exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { EXIT_TEXT }
.exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { EXIT_DATA }

. = ALIGN(PAGE_SIZE);
.bss : {
.bss : AT(ADDR(.bss) - LOAD_OFFSET) {
__init_end = .;
__bss_start = .; /* BSS */
*(.bss.page_aligned)
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