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
  11 OUTPUT_ARCH(microblaze)
  12 ENTRY(microblaze_start)
  13
  14 #include <asm/page.h>
  15 #include <asm-generic/vmlinux.lds.h>
  16 #include <asm/thread_info.h>
  17
  18 #ifdef __MICROBLAZEEL__
  19 jiffies = jiffies_64;
  20 #else
  21 jiffies = jiffies_64 + 4;
  22 #endif
  23
  24 SECTIONS {
  25         . = CONFIG_KERNEL_START;
  26         microblaze_start = CONFIG_KERNEL_BASE_ADDR;
  27         .text : AT(ADDR(.text) - LOAD_OFFSET) {
  28                 _text = . ;
  29                 _stext = . ;
  30                 HEAD_TEXT
  31                 TEXT_TEXT
  32                 *(.fixup)
  33                 EXIT_TEXT
  34                 EXIT_CALL
  35                 SCHED_TEXT
  36                 LOCK_TEXT
  37                 KPROBES_TEXT
  38                 IRQENTRY_TEXT
  39                 SOFTIRQENTRY_TEXT
  40                 . = ALIGN (4) ;
  41                 _etext = . ;
  42         }
  43
  44         . = ALIGN (4) ;
  45         __fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET) {
  46                 _fdt_start = . ;                /* place for fdt blob */
  47                 *(__fdt_blob) ;                 /* Any link-placed DTB */
  48                 . = _fdt_start + 0x8000;        /* Pad up to 32kbyte */
  49                 _fdt_end = . ;
  50         }
  51
  52         . = ALIGN(16);
  53         RODATA
  54         EXCEPTION_TABLE(16)
  55         NOTES
  56
  57         /*
  58          * sdata2 section can go anywhere, but must be word aligned
  59          * and SDA2_BASE must point to the middle of it
  60          */
  61         .sdata2 : AT(ADDR(.sdata2) - LOAD_OFFSET) {
  62                 _ssrw = .;
  63                 . = ALIGN(PAGE_SIZE); /* page aligned when MMU used */
  64                 *(.sdata2)
  65         . = ALIGN(8);
  66         _essrw = .;
  67         _ssrw_size = _essrw - _ssrw;
  68         _KERNEL_SDA2_BASE_ = _ssrw + (_ssrw_size / 2);
  69         }
  70
  71         _sdata = . ;
  72         RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE)
  73         _edata = . ;
  74
  75         /* Under the microblaze ABI, .sdata and .sbss must be contiguous */
  76         . = ALIGN(8);
  77         .sdata : AT(ADDR(.sdata) - LOAD_OFFSET) {
  78                 _ssro = .;
  79                 *(.sdata)
  80         }
  81
  82         .sbss : AT(ADDR(.sbss) - LOAD_OFFSET) {
  83                 _ssbss = .;
  84                 *(.sbss)
  85                 _esbss = .;
  86                 _essro = .;
  87                 _ssro_size = _essro - _ssro ;
  88                 _KERNEL_SDA_BASE_ = _ssro + (_ssro_size / 2) ;
  89         }
  90
  91         . = ALIGN(PAGE_SIZE);
  92         __init_begin = .;
  93
  94         INIT_TEXT_SECTION(PAGE_SIZE)
  95
  96         .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
  97                 INIT_DATA
  98         }
  99
 100         . = ALIGN(4);
 101         .init.ivt : AT(ADDR(.init.ivt) - LOAD_OFFSET) {
 102                 __ivt_start = .;
 103                 *(.init.ivt)
 104                 __ivt_end = .;
 105         }
 106
 107         .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
 108                 INIT_SETUP(0)
 109         }
 110
 111         .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET ) {
 112                 INIT_CALLS
 113         }
 114
 115         .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
 116                 CON_INITCALL
 117         }
 118
 119         SECURITY_INIT
 120
 121         __init_end_before_initramfs = .;
 122
 123         .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
 124                 INIT_RAM_FS
 125         }
 126
 127         __init_end = .;
 128
 129         .bss ALIGN (PAGE_SIZE) : AT(ADDR(.bss) - LOAD_OFFSET) {
 130                 /* page aligned when MMU used */
 131                 __bss_start = . ;
 132                         *(.bss*)
 133                         *(COMMON)
 134                 . = ALIGN (4) ;
 135                 __bss_stop = . ;
 136         }
 137         . = ALIGN(PAGE_SIZE);
 138         _end = .;
 139
 140         DISCARDS
 141 }