arch/sh/kernel/vmlinux_64.lds.S

   1 /*
   2  * ld script to make SH64 Linux kernel
   3  *
   4  * Copyright (C) 2000, 2001  Paolo Alberelli
   5  *
   6  * benedict.gaster@superh.com:   2nd May 2002
   7  *    Add definition of empty_zero_page to be the first page of kernel image.
   8  *
   9  * benedict.gaster@superh.com:   3rd May 2002
  10  *    Added support for ramdisk, removing statically linked romfs at the
  11  *    same time.
  12  *
  13  * lethal@linux-sh.org:          9th May 2003
  14  *    Kill off GLOBAL_NAME() usage and other CDC-isms.
  15  *
  16  * lethal@linux-sh.org:         19th May 2003
  17  *    Remove support for ancient toolchains.
  18  *
  19  * This file is subject to the terms and conditions of the GNU General Public
  20  * License.  See the file "COPYING" in the main directory of this archive
  21  * for more details.
  22  */
  23 #include <asm/page.h>
  24 #include <asm/cache.h>
  25 #include <asm/thread_info.h>
  26
  27 #define LOAD_OFFSET     CONFIG_PAGE_OFFSET
  28 #include <asm-generic/vmlinux.lds.h>
  29
  30 OUTPUT_ARCH(sh:sh5)
  31
  32 #define C_PHYS(x) AT (ADDR(x) - LOAD_OFFSET)
  33
  34 ENTRY(__start)
  35 SECTIONS
  36 {
  37         . = CONFIG_PAGE_OFFSET + CONFIG_MEMORY_START + PAGE_SIZE;
  38         _text = .;                      /* Text and read-only data */
  39
  40         .empty_zero_page : C_PHYS(.empty_zero_page) {
  41                 *(.empty_zero_page)
  42         } = 0
  43
  44         .text : C_PHYS(.text) {
  45                 *(.text.head)
  46                 TEXT_TEXT
  47                 *(.text64)
  48                 *(.text..SHmedia32)
  49                 SCHED_TEXT
  50                 LOCK_TEXT
  51                 KPROBES_TEXT
  52                 *(.fixup)
  53                 *(.gnu.warning)
  54 #ifdef CONFIG_CPU_LITTLE_ENDIAN
  55         } = 0x6ff0fff0
  56 #else
  57         } = 0xf0fff06f
  58 #endif
  59
  60         /* We likely want __ex_table to be Cache Line aligned */
  61         . = ALIGN(L1_CACHE_BYTES);              /* Exception table */
  62         __start___ex_table = .;
  63         __ex_table : C_PHYS(__ex_table) { *(__ex_table) }
  64         __stop___ex_table = .;
  65
  66         _etext = .;                     /* End of text section */
  67
  68         NOTES
  69         RO_DATA(PAGE_SIZE)
  70
  71         . = ALIGN(THREAD_SIZE);
  72         .data : C_PHYS(.data) {                 /* Data */
  73                 *(.data.init_task)
  74
  75                 . = ALIGN(L1_CACHE_BYTES);
  76                 *(.data.cacheline_aligned)
  77
  78                 . = ALIGN(L1_CACHE_BYTES);
  79                 *(.data.read_mostly)
  80
  81                 . = ALIGN(PAGE_SIZE);
  82                 *(.data.page_aligned)
  83
  84                 __nosave_begin = .;
  85                 *(.data.nosave)
  86                 . = ALIGN(PAGE_SIZE);
  87                 __nosave_end = .;
  88
  89                 DATA_DATA
  90                 CONSTRUCTORS
  91         }
  92
  93         _edata = .;                     /* End of data section */
  94
  95         . = ALIGN(PAGE_SIZE);           /* Init code and data */
  96         __init_begin = .;
  97         _sinittext = .;
  98         .init.text : C_PHYS(.init.text) { INIT_TEXT }
  99         _einittext = .;
 100         .init.data : C_PHYS(.init.data) { INIT_DATA }
 101         . = ALIGN(L1_CACHE_BYTES);      /* Better if Cache Line aligned */
 102         __setup_start = .;
 103         .init.setup : C_PHYS(.init.setup) { *(.init.setup) }
 104         __setup_end = .;
 105         __initcall_start = .;
 106         .initcall.init : C_PHYS(.initcall.init) {
 107                 INITCALLS
 108         }
 109         __initcall_end = .;
 110         __con_initcall_start = .;
 111         .con_initcall.init : C_PHYS(.con_initcall.init) {
 112                 *(.con_initcall.init)
 113         }
 114         __con_initcall_end = .;
 115
 116         SECURITY_INIT
 117
 118 #ifdef CONFIG_BLK_DEV_INITRD
 119         . = ALIGN(PAGE_SIZE);
 120         __initramfs_start = .;
 121         .init.ramfs : C_PHYS(.init.ramfs) { *(.init.ramfs) }
 122         __initramfs_end = .;
 123 #endif
 124
 125         . = ALIGN(8);
 126         __machvec_start = .;
 127         .machvec.init : C_PHYS(.machvec.init) { *(.machvec.init) }
 128         __machvec_end = .;
 129
 130         PERCPU(PAGE_SIZE)
 131
 132         /*
 133          * .exit.text is discarded at runtime, not link time, to deal with
 134          * references from __bug_table
 135          */
 136         .exit.text : C_PHYS(.exit.text) { EXIT_TEXT }
 137         .exit.data : C_PHYS(.exit.data) { EXIT_DATA }
 138
 139         . = ALIGN(PAGE_SIZE);
 140         .bss : C_PHYS(.bss) {
 141                 __init_end = .;
 142                 __bss_start = .;                /* BSS */
 143                 *(.bss.page_aligned)
 144                 *(.bss)
 145                 *(COMMON)
 146                 . = ALIGN(4);
 147                 _ebss = .;                      /* uClinux MTD sucks */
 148                 _end = . ;
 149         }
 150
 151         /*
 152          * When something in the kernel is NOT compiled as a module, the
 153          * module cleanup code and data are put into these segments. Both
 154          * can then be thrown away, as cleanup code is never called unless
 155          * it's a module.
 156          */
 157         /DISCARD/ : {
 158                 *(.exitcall.exit)
 159         }
 160
 161         STABS_DEBUG
 162         DWARF_DEBUG
 163 }