sysdeps/generic/sysdep.h

   1 /* Generic asm macros used on many machines.
   2    Copyright (C) 1991-1993,96,98,2002,2003,2009,2011,2012
   3    Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef C_LABEL
  21
  22 /* Define a macro we can use to construct the asm name for a C symbol.  */
  23 # define C_LABEL(name)  name##:
  24
  25 #endif
  26
  27 #ifdef __ASSEMBLER__
  28 /* Mark the end of function named SYM.  This is used on some platforms
  29    to generate correct debugging information.  */
  30 # ifndef END
  31 #  define END(sym)
  32 # endif
  33
  34 # ifndef JUMPTARGET
  35 #  define JUMPTARGET(sym)       sym
  36 # endif
  37 #endif
  38
  39 /* Makros to generate eh_frame unwind information.  */
  40 #ifdef HAVE_ASM_CFI_DIRECTIVES
  41 # ifdef __ASSEMBLER__
  42 #  define cfi_startproc                 .cfi_startproc
  43 #  define cfi_endproc                   .cfi_endproc
  44 #  define cfi_def_cfa(reg, off)         .cfi_def_cfa reg, off
  45 #  define cfi_def_cfa_register(reg)     .cfi_def_cfa_register reg
  46 #  define cfi_def_cfa_offset(off)       .cfi_def_cfa_offset off
  47 #  define cfi_adjust_cfa_offset(off)    .cfi_adjust_cfa_offset off
  48 #  define cfi_offset(reg, off)          .cfi_offset reg, off
  49 #  define cfi_rel_offset(reg, off)      .cfi_rel_offset reg, off
  50 #  define cfi_register(r1, r2)          .cfi_register r1, r2
  51 #  define cfi_return_column(reg)        .cfi_return_column reg
  52 #  define cfi_restore(reg)              .cfi_restore reg
  53 #  define cfi_same_value(reg)           .cfi_same_value reg
  54 #  define cfi_undefined(reg)            .cfi_undefined reg
  55 #  define cfi_remember_state            .cfi_remember_state
  56 #  define cfi_restore_state             .cfi_restore_state
  57 #  define cfi_window_save               .cfi_window_save
  58 #  define cfi_personality(enc, exp)     .cfi_personality enc, exp
  59 #  define cfi_lsda(enc, exp)            .cfi_lsda enc, exp
  60
  61 # else /* ! ASSEMBLER */
  62
  63 #  define CFI_STRINGIFY(Name) CFI_STRINGIFY2 (Name)
  64 #  define CFI_STRINGIFY2(Name) #Name
  65 #  define CFI_STARTPROC ".cfi_startproc"
  66 #  define CFI_ENDPROC   ".cfi_endproc"
  67 #  define CFI_DEF_CFA(reg, off) \
  68    ".cfi_def_cfa " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off)
  69 #  define CFI_DEF_CFA_REGISTER(reg) \
  70    ".cfi_def_cfa_register " CFI_STRINGIFY(reg)
  71 #  define CFI_DEF_CFA_OFFSET(off) \
  72    ".cfi_def_cfa_offset " CFI_STRINGIFY(off)
  73 #  define CFI_ADJUST_CFA_OFFSET(off) \
  74    ".cfi_adjust_cfa_offset " CFI_STRINGIFY(off)
  75 #  define CFI_OFFSET(reg, off) \
  76    ".cfi_offset " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off)
  77 #  define CFI_REL_OFFSET(reg, off) \
  78    ".cfi_rel_offset " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off)
  79 #  define CFI_REGISTER(r1, r2) \
  80    ".cfi_register " CFI_STRINGIFY(r1) "," CFI_STRINGIFY(r2)
  81 #  define CFI_RETURN_COLUMN(reg) \
  82    ".cfi_return_column " CFI_STRINGIFY(reg)
  83 #  define CFI_RESTORE(reg) \
  84    ".cfi_restore " CFI_STRINGIFY(reg)
  85 #  define CFI_UNDEFINED(reg) \
  86    ".cfi_undefined " CFI_STRINGIFY(reg)
  87 #  define CFI_REMEMBER_STATE \
  88    ".cfi_remember_state"
  89 #  define CFI_RESTORE_STATE \
  90    ".cfi_restore_state"
  91 #  define CFI_WINDOW_SAVE \
  92    ".cfi_window_save"
  93 #  define CFI_PERSONALITY(enc, exp) \
  94    ".cfi_personality " CFI_STRINGIFY(enc) "," CFI_STRINGIFY(exp)
  95 #  define CFI_LSDA(enc, exp) \
  96    ".cfi_lsda " CFI_STRINGIFY(enc) "," CFI_STRINGIFY(exp)
  97 # endif
  98
  99 #else
 100
 101 # define CFI_STARTPROC
 102 # define CFI_ENDPROC
 103 # define CFI_DEF_CFA(reg, off)
 104 # define CFI_DEF_CFA_REGISTER(reg)
 105 # define CFI_DEF_CFA_OFFSET(off)
 106 # define CFI_ADJUST_CFA_OFFSET(off)
 107 # define CFI_OFFSET(reg, off)
 108 # define CFI_REL_OFFSET(reg, off)
 109 # define CFI_REGISTER(r1, r2)
 110 # define CFI_RETURN_COLUMN(reg)
 111 # define CFI_RESTORE(reg)
 112 # define CFI_UNDEFINED(reg)
 113 # define CFI_REMEMBER_STATE
 114 # define CFI_RESTORE_STATE
 115 # define CFI_WINDOW_SAVE
 116 # define CFI_PERSONALITY(enc, exp)
 117 # define CFI_LSDA(enc, exp)
 118 #endif
 119
 120 #include "dwarf2.h"