gas/frags.h

   1 /* frags.h - Header file for the frag concept.
   2
   3    Copyright (C) 1987, 1992 Free Software Foundation, Inc.
   4
   5    This file is part of GAS, the GNU Assembler.
   6
   7    GAS is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2, or (at your option)
  10    any later version.
  11
  12    GAS is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with GAS; see the file COPYING.  If not, write to
  19    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 extern struct obstack frags;
  22 /* Frags ONLY live in this obstack. */
  23 /* We use obstack_next_free() macro */
  24 /* so please don't put any other objects */
  25 /* on this stack! */
  26
  27 /*
  28  * A macro to speed up appending exactly 1 char
  29  * to current frag.
  30  */
  31 /* JF changed < 1 to <= 1 to avoid a race conditon */
  32 #define FRAG_APPEND_1_CHAR(datum)       \
  33 {                                       \
  34                                             if (obstack_room( &frags ) <= 1) {\
  35                                                                                   frag_wane (frag_now); \
  36                                                                                       frag_new (0);             \
  37                                                                                   }                             \
  38                                                                                       obstack_1grow( &frags, datum );   \
  39                                                                                   }
  40
  41
  42 #if __STDC__ == 1
  43
  44 char *frag_more (int nchars);
  45 void frag_align (int alignment, int fill_character);
  46 void frag_new (int old_frags_var_max_size);
  47 void frag_wane (fragS * fragP);
  48
  49 char *frag_variant (relax_stateT type,
  50                     int max_chars,
  51                     int var,
  52                     relax_substateT subtype,
  53                     symbolS * symbol,
  54                     long offset,
  55                     char *opcode,
  56                     int pcrel_adjust,
  57                     int bsr);
  58
  59 char *frag_var (relax_stateT type,
  60                 int max_chars,
  61                 int var,
  62                 relax_substateT subtype,
  63                 symbolS * symbol,
  64                 long offset,
  65                 char *opcode);
  66
  67 #else /* not __STDC__ */
  68
  69 char *frag_more ();
  70 char *frag_var ();
  71 char *frag_variant ();
  72 void frag_align ();
  73 void frag_new ();
  74 void frag_wane ();
  75
  76 #endif /* not __STDC__ */
  77
  78 /*
  79  * Local Variables:
  80  * comment-column: 0
  81  * fill-column: 131
  82  * End:
  83  */
  84
  85 /* end of frags.h */