/* SPDX-License-Identifier: GPL-2.0 */
/*    Kernel link layout for various "sections"
 *
 *    Copyright (C) 1999-2003 Matthew Wilcox <willy at parisc-linux.org>
 *    Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org>
 *    Copyright (C) 2000 John Marvin <jsm at parisc-linux.org>
 *    Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
 *    Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
 *    Copyright (C) 2003 James Bottomley <jejb with parisc-linux.org>
 *    Copyright (C) 2006-2013 Helge Deller <deller@gmx.de>
 */

/*
 * Put page table entries (swapper_pg_dir) as the first thing in .bss. This
 * will ensure that it has .bss alignment (PAGE_SIZE).
 */
#define BSS_FIRST_SECTIONS      *(.data..vm0.pmd) \
                                *(.data..vm0.pgd) \
                                *(.data..vm0.pte)

#define CC_USING_PATCHABLE_FUNCTION_ENTRY
#define RO_EXCEPTION_TABLE_ALIGN        8

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

/* needed for the processor specific cache alignment size */    
#include <asm/cache.h>
#include <asm/page.h>
#include <asm/asm-offsets.h>
#include <asm/thread_info.h>
        
/* ld script to make hppa Linux kernel */
#ifndef CONFIG_64BIT
OUTPUT_FORMAT("elf32-hppa-linux")
OUTPUT_ARCH(hppa)
#else
OUTPUT_FORMAT("elf64-hppa-linux")
OUTPUT_ARCH(hppa:hppa2.0w)
#endif

#define EXIT_TEXT_SECTIONS()    .exit.text : { EXIT_TEXT }
#if !defined(CONFIG_64BIT) || defined(CONFIG_MLONGCALLS)
#define MLONGCALL_KEEP(x)
#define MLONGCALL_DISCARD(x)    x
#else
#define MLONGCALL_KEEP(x)       x
#define MLONGCALL_DISCARD(x)
#endif

ENTRY(parisc_kernel_start)
#ifndef CONFIG_64BIT
jiffies = jiffies_64 + 4;
#else
jiffies = jiffies_64;
#endif
SECTIONS
{
        . = KERNEL_BINARY_TEXT_START;

        __init_begin = .;
        HEAD_TEXT_SECTION
        MLONGCALL_DISCARD(INIT_TEXT_SECTION(8))

        . = ALIGN(PAGE_SIZE);
        INIT_DATA_SECTION(PAGE_SIZE)
        MLONGCALL_DISCARD(EXIT_TEXT_SECTIONS())
        .exit.data :
        {
                EXIT_DATA
        }
        PERCPU_SECTION(8)
        . = ALIGN(4);
        .altinstructions : {
                __alt_instructions = .;
                *(.altinstructions)
                __alt_instructions_end = .;
        }
        . = ALIGN(HUGEPAGE_SIZE);
        __init_end = .;
        /* freed after init ends here */

        _text = .;              /* Text and read-only data */
        _stext = .;
        MLONGCALL_KEEP(INIT_TEXT_SECTION(8))
        .text ALIGN(PAGE_SIZE) : {
                TEXT_TEXT
                LOCK_TEXT
                SCHED_TEXT
                KPROBES_TEXT
                IRQENTRY_TEXT
                SOFTIRQENTRY_TEXT
                *(.text.do_softirq)
                *(.text.sys_exit)
                *(.text.do_sigaltstack)
                *(.text.do_fork)
                *(.text.div)
                *($$*)                  /* millicode routines */
                *(.text.*)
                *(.fixup)
                *(.lock.text)           /* out-of-line lock text */
                *(.gnu.warning)
        }
        MLONGCALL_KEEP(EXIT_TEXT_SECTIONS())
        . = ALIGN(PAGE_SIZE);
        _etext = .;
        /* End of text section */

        /* Start of data section */
        _sdata = .;

        /* Architecturally we need to keep __gp below 0x1000000 and thus
         * in front of RO_DATA() which stores lots of tracepoint
         * and ftrace symbols. */
#ifdef CONFIG_64BIT
        . = ALIGN(16);
        /* Linkage tables */
        .opd : {
                __start_opd = .;
                *(.opd)
                __end_opd = .;
        } PROVIDE (__gp = .);
        .plt : {
                *(.plt)
        }
        .dlt : {
                *(.dlt)
        }
#endif

        RO_DATA(PAGE_SIZE)

        /* unwind info */
        . = ALIGN(4);
        .PARISC.unwind : {
                __start___unwind = .;
                *(.PARISC.unwind)
                __stop___unwind = .;
        }

        /* writeable */
        /* Make sure this is page aligned so
         * that we can properly leave these
         * as writable
         */
        . = ALIGN(HUGEPAGE_SIZE);
        data_start = .;

        /* Data */
        RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, PAGE_SIZE)

        /* PA-RISC locks requires 16-byte alignment */
        . = ALIGN(16);
        .data..lock_aligned : {
                *(.data..lock_aligned)
        }

        /* End of data section */
        . = ALIGN(PAGE_SIZE);
        _edata = .;

        /* BSS */
        BSS_SECTION(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE)

        . = ALIGN(HUGEPAGE_SIZE);
        _end = . ;

        STABS_DEBUG
        MODINFO
        ELF_DETAILS
        .note 0 : { *(.note) }

        /* Sections to be discarded */
        DISCARDS
        /DISCARD/ : {
#ifdef CONFIG_64BIT
                /* temporary hack until binutils is fixed to not emit these
                 * for static binaries
                 */
                *(.interp)
                *(.dynsym)
                *(.dynstr)
                *(.dynamic)
                *(.hash)
                *(.gnu.hash)
#endif
        }
}