binutils-gdb/gas/frags.h

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1991-04-04 20:19:53 +02:00
/* frags.h - Header file for the frag concept.
Copyright (C) 1987, 1992 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GAS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GAS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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extern struct obstack frags;
/* Frags ONLY live in this obstack. */
/* We use obstack_next_free() macro */
/* so please don't put any other objects */
/* on this stack! */
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/*
* A macro to speed up appending exactly 1 char
* to current frag.
*/
/* JF changed < 1 to <= 1 to avoid a race conditon */
#define FRAG_APPEND_1_CHAR(datum) \
{ \
if (obstack_room( &frags ) <= 1) {\
frag_wane (frag_now); \
frag_new (0); \
} \
obstack_1grow( &frags, datum ); \
}
void frag_init PARAMS ((void));
void frag_grow PARAMS ((unsigned int nchars));
char *frag_more PARAMS ((int nchars));
void frag_align PARAMS ((int alignment, int fill_character));
void frag_align_pattern PARAMS ((int alignment,
const char *fill_pattern,
int n_fill));
void frag_new PARAMS ((int old_frags_var_max_size));
void frag_wane PARAMS ((fragS * fragP));
char *frag_variant PARAMS ((relax_stateT type,
int max_chars,
int var,
relax_substateT subtype,
symbolS * symbol,
long offset,
char *opcode,
int pcrel_adjust,
int bsr));
char *frag_var PARAMS ((relax_stateT type,
int max_chars,
int var,
relax_substateT subtype,
symbolS * symbol,
long offset,
char *opcode));
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/* end of frags.h */