arch/parisc/kernel/vmlinux.lds.S

   1 /*    Kernel link layout for various "sections"
   2  *
   3  *    Copyright (C) 1999-2003 Matthew Wilcox <willy at parisc-linux.org>
   4  *    Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org>
   5  *    Copyright (C) 2000 John Marvin <jsm at parisc-linux.org>
   6  *    Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
   7  *    Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
   8  *    Copyright (C) 2003 James Bottomley <jejb with parisc-linux.org>
   9  *    Copyright (C) 2006 Helge Deller <deller@gmx.de>
  10  *
  11  *
  12  *    This program is free software; you can redistribute it and/or modify
  13  *    it under the terms of the GNU General Public License as published by
  14  *    the Free Software Foundation; either version 2 of the License, or
  15  *    (at your option) any later version.
  16  *
  17  *    This program is distributed in the hope that it will be useful,
  18  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *    GNU General Public License for more details.
  21  *
  22  *    You should have received a copy of the GNU General Public License
  23  *    along with this program; if not, write to the Free Software
  24  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  25  */
  26 #include <asm-generic/vmlinux.lds.h>
  27 /* needed for the processor specific cache alignment size */
  28 #include <asm/cache.h>
  29 #include <asm/page.h>
  30 #include <asm/asm-offsets.h>
  31
  32 /* ld script to make hppa Linux kernel */
  33 #ifndef CONFIG_64BIT
  34 OUTPUT_FORMAT("elf32-hppa-linux")
  35 OUTPUT_ARCH(hppa)
  36 #else
  37 OUTPUT_FORMAT("elf64-hppa-linux")
  38 OUTPUT_ARCH(hppa:hppa2.0w)
  39 #endif
  40
  41 ENTRY(_stext)
  42 #ifndef CONFIG_64BIT
  43 jiffies = jiffies_64 + 4;
  44 #else
  45 jiffies = jiffies_64;
  46 #endif
  47 SECTIONS
  48 {
  49         . = KERNEL_BINARY_TEXT_START;
  50
  51         _text = .;              /* Text and read-only data */
  52         .text ALIGN(16) : {
  53                 HEAD_TEXT
  54                 TEXT_TEXT
  55                 SCHED_TEXT
  56                 LOCK_TEXT
  57                 KPROBES_TEXT
  58                 IRQENTRY_TEXT
  59                 *(.text.do_softirq)
  60                 *(.text.sys_exit)
  61                 *(.text.do_sigaltstack)
  62                 *(.text.do_fork)
  63                 *(.text.*)
  64                 *(.fixup)
  65                 *(.lock.text)           /* out-of-line lock text */
  66                 *(.gnu.warning)
  67         } = 0
  68         /* End of text section */
  69         _etext = .;
  70
  71         RODATA
  72
  73         /* writeable */
  74         /* Make sure this is page aligned so
  75          * that we can properly leave these
  76          * as writable
  77          */
  78         . = ALIGN(PAGE_SIZE);
  79         data_start = .;
  80         . = ALIGN(16);
  81         /* Exception table */
  82         __ex_table : {
  83                 __start___ex_table = .;
  84                 *(__ex_table)
  85                 __stop___ex_table = .;
  86         }
  87
  88         NOTES
  89
  90         /* unwind info */
  91         .PARISC.unwind : {
  92                 __start___unwind = .;
  93                 *(.PARISC.unwind)
  94                 __stop___unwind = .;
  95         }
  96
  97         /* rarely changed data like cpu maps */
  98         . = ALIGN(16);
  99         .data.read_mostly : {
 100                 *(.data.read_mostly)
 101         }
 102
 103         . = ALIGN(L1_CACHE_BYTES);
 104         /* Data */
 105         .data : {
 106                 DATA_DATA
 107                 CONSTRUCTORS
 108         }
 109
 110         . = ALIGN(L1_CACHE_BYTES);
 111         .data.cacheline_aligned : {
 112                 *(.data.cacheline_aligned)
 113         }
 114
 115         /* PA-RISC locks requires 16-byte alignment */
 116         . = ALIGN(16);
 117         .data.lock_aligned : {
 118                 *(.data.lock_aligned)
 119         }
 120
 121         /* nosave data is really only used for software suspend...it's here
 122          * just in case we ever implement it
 123          */
 124         . = ALIGN(PAGE_SIZE);
 125         __nosave_begin = .;
 126         .data_nosave : {
 127                 *(.data.nosave)
 128         }
 129         . = ALIGN(PAGE_SIZE);
 130         __nosave_end = .;
 131
 132         /* End of data section */
 133         _edata = .;
 134
 135         /* BSS */
 136         __bss_start = .;
 137         /* page table entries need to be PAGE_SIZE aligned */
 138         . = ALIGN(PAGE_SIZE);
 139         .data.vmpages : {
 140                 *(.data.vm0.pmd)
 141                 *(.data.vm0.pgd)
 142                 *(.data.vm0.pte)
 143         }
 144         .bss : {
 145                 *(.bss)
 146                 *(COMMON)
 147         }
 148         __bss_stop = .;
 149
 150
 151         /* assembler code expects init_task to be 16k aligned */
 152         . = ALIGN(16384);
 153         /* init_task */
 154         .data.init_task : {
 155                 *(.data.init_task)
 156         }
 157
 158 #ifdef CONFIG_64BIT
 159         . = ALIGN(16);
 160         /* Linkage tables */
 161         .opd : {
 162                 *(.opd)
 163         } PROVIDE (__gp = .);
 164         .plt : {
 165                 *(.plt)
 166         }
 167         .dlt : {
 168                 *(.dlt)
 169         }
 170 #endif
 171
 172         /* reserve space for interrupt stack by aligning __init* to 16k */
 173         . = ALIGN(16384);
 174         __init_begin = .;
 175         .init.text : {
 176                 _sinittext = .;
 177                 INIT_TEXT
 178                 _einittext = .;
 179         }
 180         .init.data : {
 181                 INIT_DATA
 182         }
 183         . = ALIGN(16);
 184         .init.setup : {
 185                 __setup_start = .;
 186                 *(.init.setup)
 187                 __setup_end = .;
 188         }
 189         .initcall.init : {
 190                 __initcall_start = .;
 191                 INITCALLS
 192                 __initcall_end = .;
 193         }
 194         .con_initcall.init : {
 195                 __con_initcall_start = .;
 196                 *(.con_initcall.init)
 197                 __con_initcall_end = .;
 198         }
 199         SECURITY_INIT
 200
 201         /* alternate instruction replacement.  This is a mechanism x86 uses
 202          * to detect the CPU type and replace generic instruction sequences
 203          * with CPU specific ones.  We don't currently do this in PA, but
 204          * it seems like a good idea...
 205          */
 206         . = ALIGN(4);
 207         .altinstructions : {
 208                 __alt_instructions = .;
 209                 *(.altinstructions)
 210                 __alt_instructions_end = .;
 211         }
 212         .altinstr_replacement : {
 213                 *(.altinstr_replacement)
 214         }
 215
 216         /* .exit.text is discard at runtime, not link time, to deal with references
 217          *  from .altinstructions and .eh_frame
 218          */
 219         .exit.text : {
 220                 EXIT_TEXT
 221         }
 222         .exit.data : {
 223                 EXIT_DATA
 224         }
 225 #ifdef CONFIG_BLK_DEV_INITRD
 226         . = ALIGN(PAGE_SIZE);
 227         .init.ramfs : {
 228                 __initramfs_start = .;
 229                 *(.init.ramfs)
 230                 __initramfs_end = .;
 231         }
 232 #endif
 233
 234         PERCPU(PAGE_SIZE)
 235         . = ALIGN(PAGE_SIZE);
 236         __init_end = .;
 237         /* freed after init ends here */
 238         _end = . ;
 239
 240         /* Sections to be discarded */
 241         /DISCARD/ : {
 242                 *(.exitcall.exit)
 243 #ifdef CONFIG_64BIT
 244                 /* temporary hack until binutils is fixed to not emit these
 245                  * for static binaries
 246                  */
 247                 *(.interp)
 248                 *(.dynsym)
 249                 *(.dynstr)
 250                 *(.dynamic)
 251                 *(.hash)
 252                 *(.gnu.hash)
 253 #endif
 254         }
 255
 256         STABS_DEBUG
 257         .note 0 : { *(.note) }
 258 }