LXR linux/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__  */
  28