gas/frags.h

   1 /* frags.h - Header file for the frag concept.
   2    Copyright (C) 1987 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
  18    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 extern struct obstack   frags;
  21 /* Frags ONLY live in this obstack. */
  22 /* We use obstack_next_free() macro */
  23 /* so please don't put any other objects */
  24 /* on this stack! */
  25
  26 /*
  27  * A macro to speed up appending exactly 1 char
  28  * to current frag.
  29  */
  30 /* JF changed < 1 to <= 1 to avoid a race conditon */
  31 #define FRAG_APPEND_1_CHAR(datum)       \
  32 {                                       \
  33                                             if (obstack_room( &frags ) <= 1) {\
  34                                                                                   frag_wane (frag_now); \
  35                                                                                       frag_new (0);             \
  36                                                                                   }                             \
  37                                                                                       obstack_1grow( &frags, datum );   \
  38                                                                                   }
  39
  40
  41 #ifdef __STDC__
  42
  43 char *frag_more(int nchars);
  44 void frag_align(int alignment, int fill_character);
  45 void frag_new(int old_frags_var_max_size);
  46 void frag_wane(fragS *fragP);
  47
  48 char *frag_variant(relax_stateT type,
  49                    int max_chars,
  50                    int var,
  51                    relax_substateT subtype,
  52                    symbolS *symbol,
  53                    long offset,
  54                    char *opcode,
  55                    int pcrel_adjust,
  56                    int bsr);
  57
  58 char *frag_var(relax_stateT type,
  59                int max_chars,
  60                int var,
  61                relax_substateT subtype,
  62                symbolS *symbol,
  63                long offset,
  64                char *opcode);
  65
  66 #else /* __STDC__ */
  67
  68 char *frag_more();
  69 char *frag_var();
  70 char *frag_variant();
  71 void frag_align();
  72 void frag_new();
  73 void frag_wane();
  74
  75 #endif /* __STDC__ */
  76
  77 /*
  78  * Local Variables:
  79  * comment-column: 0
  80  * fill-column: 131
  81  * End:
  82  */
  83
  84 /* end of frags.h */