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Commit 79929fd1 authored by Vivek Goyal's avatar Vivek Goyal Committed by Andi Kleen
Browse files

[PATCH] i386: Convert more absolute symbols to section relative 



o Convert more absolute symbols to section relative to keep the theme in
  vmlinux.lds.S file and to avoid problem if kernel is relocated.

o Also put a message so that in future people can be aware of it and
  avoid introducing absolute symbols.

Signed-off-by: default avatarVivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
parent 2c22d8ba

arch/i386/kernel/vmlinux.lds.S

+10 −4
Original line number Diff line number Diff line
@@ -8,6 +8,12 @@ 
 * put it inside the section definition.

 */



/* Don't define absolute symbols until and unless you know that symbol

 * value is should remain constant even if kernel image is relocated

 * at run time. Absolute symbols are not relocated. If symbol value should

 * change if kernel is relocated, make the symbol section relative and

 * put it inside the section definition.

 */

#define LOAD_OFFSET __PAGE_OFFSET



#include <asm-generic/vmlinux.lds.h>
@@ -65,11 +71,11 @@ SECTIONS 
	CONSTRUCTORS

	} :data



  __start_paravirtprobe = .;

  .paravirtprobe : AT(ADDR(.paravirtprobe) - LOAD_OFFSET) {

  	__start_paravirtprobe = .;

	*(.paravirtprobe)

  }

  	__stop_paravirtprobe = .;

  }



  . = ALIGN(4096);

  .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
@@ -172,11 +178,11 @@ SECTIONS 
	*(.altinstr_replacement)

  }

  . = ALIGN(4);

  __start_parainstructions = .;

  .parainstructions : AT(ADDR(.parainstructions) - LOAD_OFFSET) {

  	__start_parainstructions = .;

	*(.parainstructions)

  }

  	__stop_parainstructions = .;

  }

  /* .exit.text is discard at runtime, not link time, to deal with references

     from .altinstructions and .eh_frame */

  .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { *(.exit.text) }