include/asm-x86/dwarf2.h

   1 #ifndef _DWARF2_H
   2 #define _DWARF2_H
   3
   4 #ifndef __ASSEMBLY__
   5 #warning "asm/dwarf2.h should be only included in pure assembly files"
   6 #endif
   7
   8 /*
   9    Macros for dwarf2 CFI unwind table entries.
  10    See "as.info" for details on these pseudo ops. Unfortunately
  11    they are only supported in very new binutils, so define them
  12    away for older version.
  13  */
  14
  15 #ifdef CONFIG_AS_CFI
  16
  17 #define CFI_STARTPROC .cfi_startproc
  18 #define CFI_ENDPROC .cfi_endproc
  19 #define CFI_DEF_CFA .cfi_def_cfa
  20 #define CFI_DEF_CFA_REGISTER .cfi_def_cfa_register
  21 #define CFI_DEF_CFA_OFFSET .cfi_def_cfa_offset
  22 #define CFI_ADJUST_CFA_OFFSET .cfi_adjust_cfa_offset
  23 #define CFI_OFFSET .cfi_offset
  24 #define CFI_REL_OFFSET .cfi_rel_offset
  25 #define CFI_REGISTER .cfi_register
  26 #define CFI_RESTORE .cfi_restore
  27 #define CFI_REMEMBER_STATE .cfi_remember_state
  28 #define CFI_RESTORE_STATE .cfi_restore_state
  29 #define CFI_UNDEFINED .cfi_undefined
  30
  31 #ifdef CONFIG_AS_CFI_SIGNAL_FRAME
  32 #define CFI_SIGNAL_FRAME .cfi_signal_frame
  33 #else
  34 #define CFI_SIGNAL_FRAME
  35 #endif
  36
  37 #else
  38
  39 /* Due to the structure of pre-exisiting code, don't use assembler line
  40    comment character # to ignore the arguments. Instead, use a dummy macro. */
  41 .macro cfi_ignore a=0, b=0, c=0, d=0
  42 .endm
  43
  44 #define CFI_STARTPROC   cfi_ignore
  45 #define CFI_ENDPROC     cfi_ignore
  46 #define CFI_DEF_CFA     cfi_ignore
  47 #define CFI_DEF_CFA_REGISTER    cfi_ignore
  48 #define CFI_DEF_CFA_OFFSET      cfi_ignore
  49 #define CFI_ADJUST_CFA_OFFSET   cfi_ignore
  50 #define CFI_OFFSET      cfi_ignore
  51 #define CFI_REL_OFFSET  cfi_ignore
  52 #define CFI_REGISTER    cfi_ignore
  53 #define CFI_RESTORE     cfi_ignore
  54 #define CFI_REMEMBER_STATE cfi_ignore
  55 #define CFI_RESTORE_STATE cfi_ignore
  56 #define CFI_UNDEFINED cfi_ignore
  57 #define CFI_SIGNAL_FRAME cfi_ignore
  58
  59 #endif
  60
  61 #endif