arch/arm-all/clib/vfork.s

   1 /*
   2  * vfork.s
   3  *
   4  *  Created on: Aug 5, 2009
   5  *      Author: misc
   6  *
   7  * $Id$
   8  */
   9
  10 #include "aros/arm/asm.h"
  11
  12         .text
  13         .align 2
  14         .global AROS_CDEFNAME(vfork)
  15         .type AROS_CDEFNAME(vfork),%function
  16
  17 #error jmpbuf size has changed !
  18 AROS_CDEFNAME(vfork):
  19         str             lr, [sp, #-4]!          /* Store link register */
  20         sub             sp, sp, #260            /* Create space for env structure */
  21         mov             r0, sp
  22         bl              setjmp                          /* Prepare setjmp */
  23
  24         ldr             r0, [sp, #264]          /* restore link register */
  25         str             r0, [sp, #0*4]          /* save lr as first argument of env structure */
  26
  27         add             r0, sp, #264            /* save previous stack pointer into env structure */
  28         str             r0, [sp, #9*4]
  29
  30         b               __vfork                         /* never return... */
  31