LXR linux/arch/microblaze/kernel/vmlinux.lds.S

   1/*
   2 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
   3 * Copyright (C) 2008-2009 PetaLogix
   4 * Copyright (C) 2006 Atmark Techno, Inc.
   5 *
   6 * This file is subject to the terms and conditions of the GNU General Public
   7 * License. See the file "COPYING" in the main directory of this archive
   8 * for more details.
   9 */
  10
  11OUTPUT_ARCH(microblaze)
  12ENTRY(microblaze_start)
  13
  14#define RO_EXCEPTION_TABLE_ALIGN        16
  15
  16#include <asm/cache.h>
  17#include <asm/page.h>
  18#include <asm-generic/vmlinux.lds.h>
  19#include <asm/thread_info.h>
  20
  21#ifdef __MICROBLAZEEL__
  22jiffies = jiffies_64;
  23#else
  24jiffies = jiffies_64 + 4;
  25#endif
  26
  27SECTIONS {
  28        . = CONFIG_KERNEL_START;
  29        microblaze_start = CONFIG_KERNEL_BASE_ADDR;
  30        .text : AT(ADDR(.text) - LOAD_OFFSET) {
  31                _text = . ;
  32                _stext = . ;
  33                HEAD_TEXT
  34                TEXT_TEXT
  35                *(.fixup)
  36                EXIT_TEXT
  37                EXIT_CALL
  38                SCHED_TEXT
  39                CPUIDLE_TEXT
  40                LOCK_TEXT
  41                KPROBES_TEXT
  42                IRQENTRY_TEXT
  43                SOFTIRQENTRY_TEXT
  44                . = ALIGN (4) ;
  45                _etext = . ;
  46        }
  47
  48        . = ALIGN (8) ;
  49        __fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET) {
  50                _fdt_start = . ;                /* place for fdt blob */
  51                *(__fdt_blob) ;                 /* Any link-placed DTB */
  52                . = _fdt_start + 0x10000;       /* Pad up to 64kbyte */
  53                _fdt_end = . ;
  54        }
  55
  56        . = ALIGN(16);
  57        RO_DATA(4096)
  58
  59        /*
  60         * sdata2 section can go anywhere, but must be word aligned
  61         * and SDA2_BASE must point to the middle of it
  62         */
  63        .sdata2 : AT(ADDR(.sdata2) - LOAD_OFFSET) {
  64                _ssrw = .;
  65                . = ALIGN(PAGE_SIZE); /* page aligned when MMU used */
  66                *(.sdata2)
  67        . = ALIGN(8);
  68        _essrw = .;
  69        _ssrw_size = _essrw - _ssrw;
  70        _KERNEL_SDA2_BASE_ = _ssrw + (_ssrw_size / 2);
  71        }
  72
  73        _sdata = . ;
  74        RW_DATA(32, PAGE_SIZE, THREAD_SIZE)
  75        _edata = . ;
  76
  77        /* Under the microblaze ABI, .sdata and .sbss must be contiguous */
  78        . = ALIGN(8);
  79        .sdata : AT(ADDR(.sdata) - LOAD_OFFSET) {
  80                _ssro = .;
  81                *(.sdata)
  82        }
  83
  84        .sbss : AT(ADDR(.sbss) - LOAD_OFFSET) {
  85                _ssbss = .;
  86                *(.sbss)
  87                _esbss = .;
  88                _essro = .;
  89                _ssro_size = _essro - _ssro ;
  90                _KERNEL_SDA_BASE_ = _ssro + (_ssro_size / 2) ;
  91        }
  92
  93        PERCPU_SECTION(L1_CACHE_BYTES)
  94
  95        . = ALIGN(PAGE_SIZE);
  96        __init_begin = .;
  97
  98        INIT_TEXT_SECTION(PAGE_SIZE)
  99
 100        .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
 101                INIT_DATA
 102        }
 103
 104        . = ALIGN(4);
 105        .init.ivt : AT(ADDR(.init.ivt) - LOAD_OFFSET) {
 106                __ivt_start = .;
 107                *(.init.ivt)
 108                __ivt_end = .;
 109        }
 110
 111        .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
 112                INIT_SETUP(0)
 113        }
 114
 115        .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET ) {
 116                INIT_CALLS
 117        }
 118
 119        .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
 120                CON_INITCALL
 121        }
 122
 123        __init_end_before_initramfs = .;
 124
 125        .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
 126                INIT_RAM_FS
 127        }
 128
 129        __init_end = .;
 130
 131        .bss ALIGN (PAGE_SIZE) : AT(ADDR(.bss) - LOAD_OFFSET) {
 132                /* page aligned when MMU used */
 133                __bss_start = . ;
 134                        *(.bss*)
 135                        *(COMMON)
 136                . = ALIGN (4) ;
 137                __bss_stop = . ;
 138        }
 139        . = ALIGN(PAGE_SIZE);
 140        _end = .;
 141
 142        DISCARDS
 143}
 144