mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-05 16:54:27 +00:00
f9733aa925
All current users need to add a KEEP() around the argument so the value is actually kept, which doesn't feel very natural and is prone to upcoming bugs as the name suggests that this macro alone already keeps things. Move that directly into the definition. Signed-off-by: Rolf Eike Beer <eb@emlix.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
180 lines
3.4 KiB
ArmAsm
180 lines
3.4 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* 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>
|
|
*/
|
|
|
|
#ifdef CONFIG_XIP_KERNEL
|
|
#include "vmlinux-xip.lds.S"
|
|
#else
|
|
|
|
#include <linux/pgtable.h>
|
|
#include <asm/vmlinux.lds.h>
|
|
#include <asm/cache.h>
|
|
#include <asm/thread_info.h>
|
|
#include <asm/page.h>
|
|
#include <asm/mpu.h>
|
|
|
|
OUTPUT_ARCH(arm)
|
|
ENTRY(stext)
|
|
|
|
#ifndef __ARMEB__
|
|
jiffies = jiffies_64;
|
|
#else
|
|
jiffies = jiffies_64 + 4;
|
|
#endif
|
|
|
|
SECTIONS
|
|
{
|
|
/*
|
|
* XXX: The linker does not define how output sections are
|
|
* assigned to input sections when there are multiple statements
|
|
* matching the same input section name. There is no documented
|
|
* order of matching.
|
|
*
|
|
* unwind exit sections must be discarded before the rest of the
|
|
* unwind sections get included.
|
|
*/
|
|
/DISCARD/ : {
|
|
ARM_DISCARD
|
|
#ifndef CONFIG_SMP_ON_UP
|
|
*(.alt.smp.init)
|
|
#endif
|
|
#ifndef CONFIG_ARM_UNWIND
|
|
*(.ARM.exidx) *(.ARM.exidx.*)
|
|
*(.ARM.extab) *(.ARM.extab.*)
|
|
#endif
|
|
}
|
|
|
|
. = KERNEL_OFFSET + TEXT_OFFSET;
|
|
.head.text : {
|
|
_text = .;
|
|
HEAD_TEXT
|
|
}
|
|
|
|
#ifdef CONFIG_STRICT_KERNEL_RWX
|
|
. = ALIGN(1<<SECTION_SHIFT);
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARM_MPU
|
|
. = ALIGN(PMSAv8_MINALIGN);
|
|
#endif
|
|
.text : { /* Real text segment */
|
|
_stext = .; /* Text and read-only data */
|
|
ARM_TEXT
|
|
}
|
|
|
|
#ifdef CONFIG_DEBUG_ALIGN_RODATA
|
|
. = ALIGN(1<<SECTION_SHIFT);
|
|
#endif
|
|
_etext = .; /* End of text section */
|
|
|
|
RO_DATA(PAGE_SIZE)
|
|
|
|
. = ALIGN(4);
|
|
__ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
|
|
__start___ex_table = .;
|
|
ARM_MMU_KEEP(*(__ex_table))
|
|
__stop___ex_table = .;
|
|
}
|
|
|
|
#ifdef CONFIG_ARM_UNWIND
|
|
ARM_UNWIND_SECTIONS
|
|
#endif
|
|
|
|
#ifdef CONFIG_STRICT_KERNEL_RWX
|
|
. = ALIGN(1<<SECTION_SHIFT);
|
|
#else
|
|
. = ALIGN(PAGE_SIZE);
|
|
#endif
|
|
__init_begin = .;
|
|
|
|
ARM_VECTORS
|
|
INIT_TEXT_SECTION(8)
|
|
.exit.text : {
|
|
ARM_EXIT_KEEP(EXIT_TEXT)
|
|
}
|
|
.init.proc.info : {
|
|
ARM_CPU_DISCARD(PROC_INFO)
|
|
}
|
|
.init.arch.info : {
|
|
__arch_info_begin = .;
|
|
KEEP(*(.arch.info.init))
|
|
__arch_info_end = .;
|
|
}
|
|
.init.tagtable : {
|
|
__tagtable_begin = .;
|
|
*(.taglist.init)
|
|
__tagtable_end = .;
|
|
}
|
|
#ifdef CONFIG_SMP_ON_UP
|
|
.init.smpalt : {
|
|
__smpalt_begin = .;
|
|
*(.alt.smp.init)
|
|
__smpalt_end = .;
|
|
}
|
|
#endif
|
|
.init.pv_table : {
|
|
__pv_table_begin = .;
|
|
KEEP(*(.pv_table))
|
|
__pv_table_end = .;
|
|
}
|
|
|
|
INIT_DATA_SECTION(16)
|
|
|
|
.exit.data : {
|
|
ARM_EXIT_KEEP(EXIT_DATA)
|
|
}
|
|
|
|
#ifdef CONFIG_SMP
|
|
PERCPU_SECTION(L1_CACHE_BYTES)
|
|
#endif
|
|
|
|
#ifdef CONFIG_HAVE_TCM
|
|
ARM_TCM
|
|
#endif
|
|
|
|
#ifdef CONFIG_STRICT_KERNEL_RWX
|
|
. = ALIGN(1<<SECTION_SHIFT);
|
|
#else
|
|
. = ALIGN(THREAD_ALIGN);
|
|
#endif
|
|
__init_end = .;
|
|
|
|
_sdata = .;
|
|
RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_ALIGN)
|
|
_edata = .;
|
|
|
|
BSS_SECTION(0, 0, 0)
|
|
#ifdef CONFIG_ARM_MPU
|
|
. = ALIGN(PMSAv8_MINALIGN);
|
|
#endif
|
|
_end = .;
|
|
|
|
STABS_DEBUG
|
|
DWARF_DEBUG
|
|
ARM_DETAILS
|
|
|
|
ARM_ASSERTS
|
|
}
|
|
|
|
#ifdef CONFIG_STRICT_KERNEL_RWX
|
|
/*
|
|
* Without CONFIG_DEBUG_ALIGN_RODATA, __start_rodata_section_aligned will
|
|
* be the first section-aligned location after __start_rodata. Otherwise,
|
|
* it will be equal to __start_rodata.
|
|
*/
|
|
__start_rodata_section_aligned = ALIGN(__start_rodata, 1 << SECTION_SHIFT);
|
|
#endif
|
|
|
|
/*
|
|
* These must never be empty
|
|
* If you have to comment these two assert statements out, your
|
|
* binutils is too old (for other reasons as well)
|
|
*/
|
|
ASSERT((__proc_info_end - __proc_info_begin), "missing CPU support")
|
|
#ifndef CONFIG_COMPILE_TEST
|
|
ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined")
|
|
#endif
|
|
|
|
#endif /* CONFIG_XIP_KERNEL */
|