include/asm-i386/frame.i

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