/* 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
        MODINFO
        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 */