release/src-rt-6.x.4708/linux/linux-2.6.36/arch/x86/include/asm/frame.h

   1 #ifdef __ASSEMBLY__
   2
   3 #include <asm/dwarf2.h>
   4
   5 /* The annotation hides the frame from the unwinder and makes it look
   6    like a ordinary ebp save/restore. This avoids some special cases for
   7    frame pointer later */
   8 #ifdef CONFIG_FRAME_POINTER
   9         .macro FRAME
  10         pushl %ebp
  11         CFI_ADJUST_CFA_OFFSET 4
  12         CFI_REL_OFFSET ebp,0
  13         movl %esp,%ebp
  14         .endm
  15         .macro ENDFRAME
  16         popl %ebp
  17         CFI_ADJUST_CFA_OFFSET -4
  18         CFI_RESTORE ebp
  19         .endm
  20 #else
  21         .macro FRAME
  22         .endm
  23         .macro ENDFRAME
  24         .endm
  25 #endif
  26
  27 #endif  /*  __ASSEMBLY__  */