arch/arm/kernel/vmlinux.lds.S

   1 /* ld script to make ARM Linux kernel
   2  * taken from the i386 version by Russell King
   3  * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
   4  */
   5
   6 #include <asm-generic/vmlinux.lds.h>
   7 #include <asm/thread_info.h>
   8 #include <asm/memory.h>
   9
  10 OUTPUT_ARCH(arm)
  11 ENTRY(stext)
  12
  13 #ifndef __ARMEB__
  14 jiffies = jiffies_64;
  15 #else
  16 jiffies = jiffies_64 + 4;
  17 #endif
  18
  19 SECTIONS
  20 {
  21 #ifdef CONFIG_XIP_KERNEL
  22         . = XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR);
  23 #else
  24         . = PAGE_OFFSET + TEXT_OFFSET;
  25 #endif
  26         .init : {                       /* Init code and data           */
  27                 _stext = .;
  28                         _sinittext = .;
  29                         *(.init.text)
  30                         _einittext = .;
  31                 __proc_info_begin = .;
  32                         *(.proc.info.init)
  33                 __proc_info_end = .;
  34                 __arch_info_begin = .;
  35                         *(.arch.info.init)
  36                 __arch_info_end = .;
  37                 __tagtable_begin = .;
  38                         *(.taglist.init)
  39                 __tagtable_end = .;
  40                 . = ALIGN(16);
  41                 __setup_start = .;
  42                         *(.init.setup)
  43                 __setup_end = .;
  44                 __early_begin = .;
  45                         *(.early_param.init)
  46                 __early_end = .;
  47                 __initcall_start = .;
  48                         *(.initcall1.init)
  49                         *(.initcall2.init)
  50                         *(.initcall3.init)
  51                         *(.initcall4.init)
  52                         *(.initcall5.init)
  53                         *(.initcall6.init)
  54                         *(.initcall7.init)
  55                 __initcall_end = .;
  56                 __con_initcall_start = .;
  57                         *(.con_initcall.init)
  58                 __con_initcall_end = .;
  59                 __security_initcall_start = .;
  60                         *(.security_initcall.init)
  61                 __security_initcall_end = .;
  62                 . = ALIGN(32);
  63                 __initramfs_start = .;
  64                         usr/built-in.o(.init.ramfs)
  65                 __initramfs_end = .;
  66                 . = ALIGN(64);
  67                 __per_cpu_start = .;
  68                         *(.data.percpu)
  69                 __per_cpu_end = .;
  70 #ifndef CONFIG_XIP_KERNEL
  71                 __init_begin = _stext;
  72                 *(.init.data)
  73                 . = ALIGN(4096);
  74                 __init_end = .;
  75 #endif
  76         }
  77
  78         /DISCARD/ : {                   /* Exit code and data           */
  79                 *(.exit.text)
  80                 *(.exit.data)
  81                 *(.exitcall.exit)
  82 #ifndef CONFIG_MMU
  83                 *(.fixup)
  84                 *(__ex_table)
  85 #endif
  86         }
  87
  88         .text : {                       /* Real text segment            */
  89                 _text = .;              /* Text and read-only data      */
  90                         *(.text)
  91                         SCHED_TEXT
  92                         LOCK_TEXT
  93 #ifdef CONFIG_MMU
  94                         *(.fixup)
  95 #endif
  96                         *(.gnu.warning)
  97                         *(.rodata)
  98                         *(.rodata.*)
  99                         *(.glue_7)
 100                         *(.glue_7t)
 101                 *(.got)                 /* Global offset table          */
 102         }
 103
 104         RODATA
 105
 106         _etext = .;                     /* End of text and rodata section */
 107
 108 #ifdef CONFIG_XIP_KERNEL
 109         __data_loc = ALIGN(4);          /* location in binary */
 110         . = PAGE_OFFSET + TEXT_OFFSET;
 111 #else
 112         . = ALIGN(THREAD_SIZE);
 113         __data_loc = .;
 114 #endif
 115
 116         .data : AT(__data_loc) {
 117                 __data_start = .;       /* address in memory */
 118
 119                 /*
 120                  * first, the init task union, aligned
 121                  * to an 8192 byte boundary.
 122                  */
 123                 *(.init.task)
 124
 125 #ifdef CONFIG_XIP_KERNEL
 126                 . = ALIGN(4096);
 127                 __init_begin = .;
 128                 *(.init.data)
 129                 . = ALIGN(4096);
 130                 __init_end = .;
 131 #endif
 132
 133                 . = ALIGN(4096);
 134                 __nosave_begin = .;
 135                 *(.data.nosave)
 136                 . = ALIGN(4096);
 137                 __nosave_end = .;
 138
 139                 /*
 140                  * then the cacheline aligned data
 141                  */
 142                 . = ALIGN(32);
 143                 *(.data.cacheline_aligned)
 144
 145                 /*
 146                  * The exception fixup table (might need resorting at runtime)
 147                  */
 148                 . = ALIGN(32);
 149                 __start___ex_table = .;
 150 #ifdef CONFIG_MMU
 151                 *(__ex_table)
 152 #endif
 153                 __stop___ex_table = .;
 154
 155                 /*
 156                  * and the usual data section
 157                  */
 158                 *(.data)
 159                 CONSTRUCTORS
 160
 161                 _edata = .;
 162         }
 163
 164         .bss : {
 165                 __bss_start = .;        /* BSS                          */
 166                 *(.bss)
 167                 *(COMMON)
 168                 _end = .;
 169         }
 170                                         /* Stabs debugging sections.    */
 171         .stab 0 : { *(.stab) }
 172         .stabstr 0 : { *(.stabstr) }
 173         .stab.excl 0 : { *(.stab.excl) }
 174         .stab.exclstr 0 : { *(.stab.exclstr) }
 175         .stab.index 0 : { *(.stab.index) }
 176         .stab.indexstr 0 : { *(.stab.indexstr) }
 177         .comment 0 : { *(.comment) }
 178 }
 179
 180 /*
 181  * These must never be empty
 182  * If you have to comment these two assert statements out, your
 183  * binutils is too old (for other reasons as well)
 184  */
 185 ASSERT((__proc_info_end - __proc_info_begin), "missing CPU support")
 186 ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined")