projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| a6e01f52 C |
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 1, 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 | /* end: frags.h */ |