arch/sh/kernel/vmlinux.lds.S

   1 /*
   2  * ld script to make SuperH Linux kernel
   3  * Written by Niibe Yutaka and Paul Mundt
   4  */
   5 #ifdef CONFIG_SUPERH64
   6 #define LOAD_OFFSET     CONFIG_PAGE_OFFSET
   7 OUTPUT_ARCH(sh:sh5)
   8 #else
   9 #define LOAD_OFFSET     0
  10 OUTPUT_ARCH(sh)
  11 #endif
  12
  13 #include <asm/thread_info.h>
  14 #include <asm/cache.h>
  15 #include <asm-generic/vmlinux.lds.h>
  16
  17 ENTRY(_start)
  18 SECTIONS
  19 {
  20 #ifdef CONFIG_PMB_FIXED
  21         . = CONFIG_PAGE_OFFSET + (CONFIG_MEMORY_START & 0x1fffffff) +
  22             CONFIG_ZERO_PAGE_OFFSET;
  23 #elif defined(CONFIG_32BIT)
  24         . = CONFIG_PAGE_OFFSET + CONFIG_ZERO_PAGE_OFFSET;
  25 #else
  26         . = CONFIG_PAGE_OFFSET + CONFIG_MEMORY_START + CONFIG_ZERO_PAGE_OFFSET;
  27 #endif
  28
  29         _text = .;              /* Text and read-only data */
  30
  31         .empty_zero_page : AT(ADDR(.empty_zero_page) - LOAD_OFFSET) {
  32                 *(.empty_zero_page)
  33         } = 0
  34
  35         .text : AT(ADDR(.text) - LOAD_OFFSET) {
  36                 HEAD_TEXT
  37                 TEXT_TEXT
  38
  39 #ifdef CONFIG_SUPERH64
  40                 *(.text64)
  41                 *(.text..SHmedia32)
  42 #endif
  43
  44                 SCHED_TEXT
  45                 LOCK_TEXT
  46                 KPROBES_TEXT
  47                 IRQENTRY_TEXT
  48                 *(.fixup)
  49                 *(.gnu.warning)
  50                 _etext = .;             /* End of text section */
  51         } = 0x0009
  52
  53         . = ALIGN(16);          /* Exception table */
  54         __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
  55                 __start___ex_table = .;
  56                 *(__ex_table)
  57                 __stop___ex_table = .;
  58         }
  59
  60         NOTES
  61         RO_DATA(PAGE_SIZE)
  62
  63         /*
  64          * Code which must be executed uncached and the associated data
  65          */
  66         . = ALIGN(PAGE_SIZE);
  67         .uncached : AT(ADDR(.uncached) - LOAD_OFFSET) {
  68                 __uncached_start = .;
  69                 *(.uncached.text)
  70                 *(.uncached.data)
  71                 __uncached_end = .;
  72         }
  73
  74         . = ALIGN(THREAD_SIZE);
  75         .data : AT(ADDR(.data) - LOAD_OFFSET) {         /* Data */
  76                 *(.data.init_task)
  77
  78                 . = ALIGN(L1_CACHE_BYTES);
  79                 *(.data.cacheline_aligned)
  80
  81                 . = ALIGN(L1_CACHE_BYTES);
  82                 *(.data.read_mostly)
  83
  84                 . = ALIGN(PAGE_SIZE);
  85                 *(.data.page_aligned)
  86
  87                 __nosave_begin = .;
  88                 *(.data.nosave)
  89                 . = ALIGN(PAGE_SIZE);
  90                 __nosave_end = .;
  91
  92                 DATA_DATA
  93                 CONSTRUCTORS
  94         }
  95
  96         _edata = .;                     /* End of data section */
  97
  98         . = ALIGN(PAGE_SIZE);           /* Init code and data */
  99         .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
 100                 __init_begin = .;
 101                 _sinittext = .;
 102                 INIT_TEXT
 103                 _einittext = .;
 104         }
 105
 106         .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { INIT_DATA }
 107
 108         . = ALIGN(16);
 109         .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
 110                 __setup_start = .;
 111                 *(.init.setup)
 112                 __setup_end = .;
 113         }
 114
 115         .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
 116                 __initcall_start = .;
 117                 INITCALLS
 118                 __initcall_end = .;
 119         }
 120
 121         .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
 122                 __con_initcall_start = .;
 123                 *(.con_initcall.init)
 124                 __con_initcall_end = .;
 125         }
 126
 127         SECURITY_INIT
 128
 129 #ifdef CONFIG_BLK_DEV_INITRD
 130         . = ALIGN(PAGE_SIZE);
 131         .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
 132                 __initramfs_start = .;
 133                 *(.init.ramfs)
 134                 __initramfs_end = .;
 135         }
 136 #endif
 137
 138         . = ALIGN(4);
 139         .machvec.init : AT(ADDR(.machvec.init) - LOAD_OFFSET) {
 140                 __machvec_start = .;
 141                 *(.machvec.init)
 142                 __machvec_end = .;
 143         }
 144
 145         PERCPU(PAGE_SIZE)
 146
 147         /*
 148          * .exit.text is discarded at runtime, not link time, to deal with
 149          * references from __bug_table
 150          */
 151         .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { EXIT_TEXT }
 152         .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { EXIT_DATA }
 153
 154         . = ALIGN(PAGE_SIZE);
 155         .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
 156                 __init_end = .;
 157                 __bss_start = .;                /* BSS */
 158                 *(.bss.page_aligned)
 159                 *(.bss)
 160                 *(COMMON)
 161                 . = ALIGN(4);
 162                 _ebss = .;                      /* uClinux MTD sucks */
 163                 _end = . ;
 164         }
 165
 166         /*
 167          * When something in the kernel is NOT compiled as a module, the
 168          * module cleanup code and data are put into these segments. Both
 169          * can then be thrown away, as cleanup code is never called unless
 170          * it's a module.
 171          */
 172         /DISCARD/ : {
 173                 *(.exitcall.exit)
 174         }
 175
 176         STABS_DEBUG
 177         DWARF_DEBUG
 178 }