gas/dwarf2dbg.h

   1 /* dwarf2dbg.h - DWARF2 debug support
   2    Copyright (C) 1999 Free Software Foundation, Inc.
   3
   4    This file is part of GAS, the GNU Assembler.
   5
   6    GAS is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2, or (at your option)
   9    any later version.
  10
  11    GAS 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
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with GAS; see the file COPYING.  If not, write to the Free
  18    Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  19    02111-1307, USA.  */
  20
  21 #ifndef AS_DWARF2DBG_H
  22 #define AS_DWARF2DBG_H
  23
  24 #include "as.h"
  25
  26 #define DWARF2_FLAG_BEGIN_STMT  (1 << 0)        /* beginning of statement */
  27 #define DWARF2_FLAG_BEGIN_BLOCK (1 << 1)        /* beginning of basic block */
  28
  29 struct dwarf2_line_info
  30   {
  31     char *filename;
  32     unsigned int filenum;
  33     unsigned int line;
  34     unsigned int column;
  35     unsigned int flags;
  36   };
  37
  38 /* Implements the .file FILENO "FILENAME" directive.  FILENO can be 0
  39    to indicate that no file number has been assigned.  All real file
  40    number must be >0.  */
  41 extern void dwarf2_directive_file PARAMS ((int dummy));
  42
  43 /* Implements the .loc FILENO LINENO [COLUMN] directive.  FILENO is
  44    the file number, LINENO the line number and the (optional) COLUMN
  45    the column of the source code that the following instruction
  46    corresponds to.  FILENO can be 0 to indicate that the filename
  47    specified by the textually most recent .file directive should be
  48    used.  */
  49 extern void dwarf2_directive_loc PARAMS ((int dummy));
  50
  51 /* Returns the current source information.  If .file directives have
  52    been encountered, the info for the corresponding source file is
  53    returned.  Otherwise, the info for the assembly source file is
  54    returned.  */
  55 extern void dwarf2_where PARAMS ((struct dwarf2_line_info *l));
  56
  57 /* This function generates .debug_line info based on the address and
  58    source information passed in the arguments.  ADDR should be the
  59    frag-relative offset of the instruction the information is for and
  60    L is the source information that should be associated with that
  61    address. */
  62 extern void dwarf2_gen_line_info PARAMS ((addressT addr,
  63                                           struct dwarf2_line_info *l));
  64
  65 /* Must be called after all other input is processed to finish up the
  66    .debug_line section.  */
  67 extern void dwarf2_finish PARAMS ((void));
  68
  69 #endif /* AS_DWARF2DBG_H */