linux/arch/m68k/kernel/vmlinux-nommu.lds
Greg Ungerer f84f52a5c1 m68knommu: clean up linker script
There is a lot of years of collected cruft in the m68knommu linker script.
Clean it all up and use the well defined linker script support macros.

Support is maintained for building both ROM/FLASH based and RAM based setups.
No major changes to section layouts, though the rodata section is now lumped
in with the read/write data section.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-03-05 09:43:03 +10:00

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/*
* vmlinux.lds.S -- master linker script for m68knommu arch
*
* (C) Copyright 2002-2012, Greg Ungerer <gerg@snapgear.com>
*
* This linker script is equipped to build either ROM loaded or RAM
* run kernels.
*/
#if defined(CONFIG_RAMKERNEL)
#define KTEXT_ADDR CONFIG_KERNELBASE
#endif
#if defined(CONFIG_ROMKERNEL)
#define KTEXT_ADDR CONFIG_ROMSTART
#define KDATA_ADDR CONFIG_KERNELBASE
#define LOAD_OFFSET KDATA_ADDR + (ADDR(.text) + SIZEOF(.text))
#endif
#include <asm/page.h>
#include <asm/thread_info.h>
#include <asm-generic/vmlinux.lds.h>
OUTPUT_ARCH(m68k)
ENTRY(_start)
jiffies = jiffies_64 + 4;
SECTIONS {
#ifdef CONFIG_ROMVEC
. = CONFIG_ROMVEC;
.romvec : {
__rom_start = .;
_romvec = .;
*(.romvec)
*(.data..initvect)
}
#endif
. = KTEXT_ADDR;
_text = .;
_stext = .;
.text : {
HEAD_TEXT
TEXT_TEXT
SCHED_TEXT
LOCK_TEXT
*(.fixup)
. = ALIGN(16);
}
_etext = .;
#ifdef KDATA_ADDR
. = KDATA_ADDR;
#endif
_sdata = .;
RO_DATA_SECTION(PAGE_SIZE)
RW_DATA_SECTION(16, PAGE_SIZE, THREAD_SIZE)
_edata = .;
EXCEPTION_TABLE(16)
NOTES
. = ALIGN(PAGE_SIZE);
__init_begin = .;
INIT_TEXT_SECTION(PAGE_SIZE)
INIT_DATA_SECTION(16)
PERCPU_SECTION(16)
.m68k_fixup : {
__start_fixup = .;
*(.m68k_fixup)
__stop_fixup = .;
}
.init.data : {
. = ALIGN(PAGE_SIZE);
__init_end = .;
}
_sbss = .;
BSS_SECTION(0, 0, 0)
_ebss = .;
_end = .;
STABS_DEBUG
.comment 0 : { *(.comment) }
/* Sections to be discarded */
DISCARDS
}