← Back to branch summary

~ubuntu-branches/ubuntu/precise/linux-lowlatency/precise

« back to all changes in this revision

Viewing changes to arch/x86/include/asm/frame.h

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

Show diffs side-by-side

added added

removed removed

Lines of Context:
arch/x86/include/asm/frame.h
 
1
#ifdef __ASSEMBLY__
 
2
 
 
3
#include <asm/asm.h>
 
4
#include <asm/dwarf2.h>
 
5
 
 
6
/* The annotation hides the frame from the unwinder and makes it look
 
7
   like a ordinary ebp save/restore. This avoids some special cases for
 
8
   frame pointer later */
 
9
#ifdef CONFIG_FRAME_POINTER
 
10
        .macro FRAME
 
11
        __ASM_SIZE(push,_cfi)   %__ASM_REG(bp)
 
12
        CFI_REL_OFFSET          __ASM_REG(bp), 0
 
13
        __ASM_SIZE(mov)         %__ASM_REG(sp), %__ASM_REG(bp)
 
14
        .endm
 
15
        .macro ENDFRAME
 
16
        __ASM_SIZE(pop,_cfi)    %__ASM_REG(bp)
 
17
        CFI_RESTORE             __ASM_REG(bp)
 
18
        .endm
 
19
#else
 
20
        .macro FRAME
 
21
        .endm
 
22
        .macro ENDFRAME
 
23
        .endm
 
24
#endif
 
25
 
 
26
#endif  /*  __ASSEMBLY__  */