linux/arch/arm/kernel/vmlinux.lds.S
Russell King 4f7a18124c [PATCH] ARM: Fix kernel stack offset calculations
Various places in the ARM kernel implicitly assumed that kernel
stacks are always 8K due to hard coded constants.  Replace these
constants with definitions.

Correct the allowable range of kernel stack pointer values within
the allocation.  Arrange for the entire kernel stack to be zeroed,
not just the upper 4K if CONFIG_DEBUG_STACK_USAGE is set.

Signed-off-by: Russell King <rmk@arm.linux.org.uk>
2005-05-05 13:11:00 +01:00

167 lines
3.2 KiB
ArmAsm

/* ld script to make ARM Linux kernel
* taken from the i386 version by Russell King
* Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
*/
#include <asm-generic/vmlinux.lds.h>
#include <linux/config.h>
#include <asm/thread_info.h>
OUTPUT_ARCH(arm)
ENTRY(stext)
#ifndef __ARMEB__
jiffies = jiffies_64;
#else
jiffies = jiffies_64 + 4;
#endif
SECTIONS
{
. = TEXTADDR;
.init : { /* Init code and data */
_stext = .;
_sinittext = .;
*(.init.text)
_einittext = .;
__proc_info_begin = .;
*(.proc.info)
__proc_info_end = .;
__arch_info_begin = .;
*(.arch.info)
__arch_info_end = .;
__tagtable_begin = .;
*(.taglist)
__tagtable_end = .;
. = ALIGN(16);
__setup_start = .;
*(.init.setup)
__setup_end = .;
__early_begin = .;
*(__early_param)
__early_end = .;
__initcall_start = .;
*(.initcall1.init)
*(.initcall2.init)
*(.initcall3.init)
*(.initcall4.init)
*(.initcall5.init)
*(.initcall6.init)
*(.initcall7.init)
__initcall_end = .;
__con_initcall_start = .;
*(.con_initcall.init)
__con_initcall_end = .;
__security_initcall_start = .;
*(.security_initcall.init)
__security_initcall_end = .;
. = ALIGN(32);
__initramfs_start = .;
usr/built-in.o(.init.ramfs)
__initramfs_end = .;
. = ALIGN(64);
__per_cpu_start = .;
*(.data.percpu)
__per_cpu_end = .;
#ifndef CONFIG_XIP_KERNEL
__init_begin = _stext;
*(.init.data)
. = ALIGN(4096);
__init_end = .;
#endif
}
/DISCARD/ : { /* Exit code and data */
*(.exit.text)
*(.exit.data)
*(.exitcall.exit)
}
.text : { /* Real text segment */
_text = .; /* Text and read-only data */
*(.text)
SCHED_TEXT
LOCK_TEXT
*(.fixup)
*(.gnu.warning)
*(.rodata)
*(.rodata.*)
*(.glue_7)
*(.glue_7t)
*(.got) /* Global offset table */
}
. = ALIGN(16);
__ex_table : { /* Exception table */
__start___ex_table = .;
*(__ex_table)
__stop___ex_table = .;
}
RODATA
_etext = .; /* End of text and rodata section */
#ifdef CONFIG_XIP_KERNEL
__data_loc = ALIGN(4); /* location in binary */
. = DATAADDR;
#else
. = ALIGN(THREAD_SIZE);
__data_loc = .;
#endif
.data : AT(__data_loc) {
__data_start = .; /* address in memory */
/*
* first, the init task union, aligned
* to an 8192 byte boundary.
*/
*(.init.task)
#ifdef CONFIG_XIP_KERNEL
. = ALIGN(4096);
__init_begin = .;
*(.init.data)
. = ALIGN(4096);
__init_end = .;
#endif
. = ALIGN(4096);
__nosave_begin = .;
*(.data.nosave)
. = ALIGN(4096);
__nosave_end = .;
/*
* then the cacheline aligned data
*/
. = ALIGN(32);
*(.data.cacheline_aligned)
/*
* and the usual data section
*/
*(.data)
CONSTRUCTORS
_edata = .;
}
.bss : {
__bss_start = .; /* BSS */
*(.bss)
*(COMMON)
_end = .;
}
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
}
/* those must never be empty */
ASSERT((__proc_info_end - __proc_info_begin), "missing CPU support")
ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined")