[deliverable/binutils-gdb.git] / gas / frags.h

/* 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.  */

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! */

/*
 * 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));

/* end of frags.h */
Commit	Line	Data
	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	void frag_init PARAMS ((void));
	43	void frag_grow PARAMS ((unsigned int nchars));
	44	char *frag_more PARAMS ((int nchars));
	45	void frag_align PARAMS ((int alignment, int fill_character));
	46	void frag_align_pattern PARAMS ((int alignment,
	47	const char *fill_pattern,
	48	int n_fill));
	49	void frag_new PARAMS ((int old_frags_var_max_size));
	50	void frag_wane PARAMS ((fragS * fragP));
	51
	52	char *frag_variant PARAMS ((relax_stateT type,
	53	int max_chars,
	54	int var,
	55	relax_substateT subtype,
	56	symbolS * symbol,
	57	long offset,
	58	char *opcode,
	59	int pcrel_adjust,
	60	int bsr));
	61
	62	char *frag_var PARAMS ((relax_stateT type,
	63	int max_chars,
	64	int var,
	65	relax_substateT subtype,
	66	symbolS * symbol,
	67	long offset,
	68	char *opcode));
	69
	70	/* end of frags.h */