[PARISC] Further work for multiple page sizes

[deliverable/linux.git] / arch / parisc / kernel / vmlinux.lds.S

/*    Kernel link layout for various "sections"
 *
 *    Copyright (C) 1999-2003 Matthew Wilcox <willy at parisc-linux.org>
 *    Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org>
 *    Copyright (C) 2000 John Marvin <jsm at parisc-linux.org>
 *    Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
 *    Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
 *    Copyright (C) 2003 James Bottomley <jejb with parisc-linux.org>
 *    Copyright (C) 2006 Helge Deller <deller@gmx.de>
 *
 *
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
#include <linux/config.h>
#include <asm-generic/vmlinux.lds.h>
/* needed for the processor specific cache alignment size */	
#include <asm/cache.h>
#include <asm/page.h>
#include <asm/asm-offsets.h>
	
/* ld script to make hppa Linux kernel */
#ifndef CONFIG_64BIT
OUTPUT_FORMAT("elf32-hppa-linux")
OUTPUT_ARCH(hppa)
#else
OUTPUT_FORMAT("elf64-hppa-linux")
OUTPUT_ARCH(hppa:hppa2.0w)
#endif

ENTRY(_stext)
#ifndef CONFIG_64BIT
jiffies = jiffies_64 + 4;
#else
jiffies = jiffies_64;
#endif
SECTIONS
{

  . = KERNEL_BINARY_TEXT_START;

  _text = .;			/* Text and read-only data */
  .text ALIGN(16) : {
	*(.text)
	SCHED_TEXT
	LOCK_TEXT
	*(.text.do_softirq)
	*(.text.sys_exit)
	*(.text.do_sigaltstack)
	*(.text.do_fork)
	*(.text.*)
	*(.fixup)
	*(.lock.text)		/* out-of-line lock text */
	*(.gnu.warning)
	} = 0

  _etext = .;			/* End of text section */

  RODATA

  /* writeable */
  . = ALIGN(ASM_PAGE_SIZE);	/* Make sure this is page aligned so
  				   that we can properly leave these
				   as writable */
  data_start = .;

  . = ALIGN(16);		/* Exception table */
  __start___ex_table = .;
  __ex_table : { *(__ex_table) }
  __stop___ex_table = .;

  __start___unwind = .;         /* unwind info */
  .PARISC.unwind : { *(.PARISC.unwind) }
  __stop___unwind = .;

  /* rarely changed data like cpu maps */
  . = ALIGN(16);
  .data.read_mostly : { *(.data.read_mostly) }

  . = ALIGN(L1_CACHE_BYTES);
  .data : {			/* Data */
	*(.data)
	CONSTRUCTORS
	}

  . = ALIGN(L1_CACHE_BYTES);
  .data.cacheline_aligned : { *(.data.cacheline_aligned) }

  /* PA-RISC locks requires 16-byte alignment */
  . = ALIGN(16);
  .data.lock_aligned : { *(.data.lock_aligned) }

  . = ALIGN(ASM_PAGE_SIZE);
  /* nosave data is really only used for software suspend...it's here
   * just in case we ever implement it */
  __nosave_begin = .;
  .data_nosave : { *(.data.nosave) }
  . = ALIGN(ASM_PAGE_SIZE);
  __nosave_end = .;

  _edata = .;			/* End of data section */

  __bss_start = .;		/* BSS */
  /* page table entries need to be PAGE_SIZE aligned */
  . = ALIGN(ASM_PAGE_SIZE);
  .data.vmpages : {
	*(.data.vm0.pmd)
	*(.data.vm0.pgd)
	*(.data.vm0.pte)
	}
  .bss : { *(.bss) *(COMMON) }
  __bss_stop = .;


  /* assembler code expects init_task to be 16k aligned */
  . = ALIGN(16384); 		/* init_task */
  .data.init_task : { *(.data.init_task) }

  /* The interrupt stack is currently partially coded, but not yet
   * implemented */
  . = ALIGN(16384);	
  init_istack : { *(init_istack) }

#ifdef CONFIG_64BIT
  . = ALIGN(16);               /* Linkage tables */
  .opd : { *(.opd) } PROVIDE (__gp = .); 
  .plt : { *(.plt) } 
  .dlt : { *(.dlt) }
#endif

  /* reserve space for interrupt stack by aligning __init* to 16k */
  . = ALIGN(16384);
  __init_begin = .;
  .init.text : { 
	_sinittext = .;
	*(.init.text)
	_einittext = .;
  }
  .init.data : { *(.init.data) }
  . = ALIGN(16);
  __setup_start = .;
  .init.setup : { *(.init.setup) }
  __setup_end = .;
  __initcall_start = .;
  .initcall.init : {
	*(.initcall1.init) 
	*(.initcall2.init) 
	*(.initcall3.init) 
	*(.initcall4.init) 
	*(.initcall5.init) 
	*(.initcall6.init) 
	*(.initcall7.init)
  }
  __initcall_end = .;
  __con_initcall_start = .;
  .con_initcall.init : { *(.con_initcall.init) }
  __con_initcall_end = .;
  SECURITY_INIT
  /* alternate instruction replacement.  This is a mechanism x86 uses
   * to detect the CPU type and replace generic instruction sequences
   * with CPU specific ones.  We don't currently do this in PA, but
   * it seems like a good idea... */
  . = ALIGN(4);
  __alt_instructions = .;
  .altinstructions : { *(.altinstructions) } 
  __alt_instructions_end = .; 
 .altinstr_replacement : { *(.altinstr_replacement) } 
  /* .exit.text is discard at runtime, not link time, to deal with references
     from .altinstructions and .eh_frame */
  .exit.text : { *(.exit.text) }
  .exit.data : { *(.exit.data) }
  . = ALIGN(ASM_PAGE_SIZE);
  __initramfs_start = .;
  .init.ramfs : { *(.init.ramfs) }
  __initramfs_end = .;
  . = ALIGN(32);
  __per_cpu_start = .;
  .data.percpu  : { *(.data.percpu) }
  __per_cpu_end = .;
  . = ALIGN(ASM_PAGE_SIZE);
  __init_end = .;
  /* freed after init ends here */
	
  _end = . ;

  /* Sections to be discarded */
  /DISCARD/ : {
	*(.exitcall.exit)
#ifdef CONFIG_64BIT
	/* temporary hack until binutils is fixed to not emit these
	 for static binaries */
	*(.interp)
	*(.dynsym)
	*(.dynstr)
	*(.dynamic)
	*(.hash)
#endif
	}

  STABS_DEBUG
  .note 0 : { *(.note) }	

}