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

/* write.h -> write.c */

/*   MODIFIED BY CHRIS BENENATI, FOR INTEL CORPORATION, 4/89	*/
/* write.h -> write.c
   Copyright (C) 1987 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.  */

#ifndef TC_I960
#ifdef hpux
#define EXEC_MACHINE_TYPE HP9000S200_ID
#endif
#endif /* TC_I960 */

#ifndef LOCAL_LABEL
#ifdef DOT_LABEL_PREFIX
#define LOCAL_LABEL(name) (name[0] =='.' \
			   && ( name [1] == 'L' || name [1] == '.' ))
#else  /* not defined DOT_LABEL_PREFIX */
#define LOCAL_LABEL(name) (name [0] == 'L' )
#endif /* not defined DOT_LABEL_PREFIX */
#endif /* LOCAL_LABEL */

#define S_LOCAL_NAME(s) (LOCAL_LABEL(S_GET_NAME(s)))

/* The bit_fix was implemented to support machines that need variables
   to be inserted in bitfields other than 1, 2 and 4 bytes. 
   Furthermore it gives us a possibillity to mask in bits in the symbol
   when it's fixed in the objectcode and check the symbols limits.
   
   The or-mask is used to set the huffman bits in displacements for the
   ns32k port.
   The acbi, addqi, movqi, cmpqi instruction requires an assembler that
   can handle bitfields. Ie handle an expression, evaluate it and insert
   the result in an some bitfield. ( ex: 5 bits in a short field of a opcode) 
   */

struct bit_fix {
	int			fx_bit_size;	/* Length of bitfield		*/
	int			fx_bit_offset;	/* Bit offset to bitfield	*/
	long			fx_bit_base;	/* Where do we apply the bitfix.
						   If this is zero, default is assumed. */
	long                  fx_bit_base_adj;/* Adjustment of base */
	long			fx_bit_max;	/* Signextended max for bitfield */
	long			fx_bit_min;	/* Signextended min for bitfield */
	long			fx_bit_add;	/* Or mask, used for huffman prefix */
};
typedef struct bit_fix bit_fixS;
/*
 * FixSs may be built up in any order.
 */

struct fix {
	fragS *fx_frag;	/* Which frag? */
	long fx_where;	/* Where is the 1st byte to fix up? */
	symbolS *fx_addsy; /* NULL or Symbol whose value we add in. */
	symbolS *fx_subsy; /* NULL or Symbol whose value we subtract. */
	long fx_offset;	/* Absolute number we add in. */
	struct fix *fx_next;	/* NULL or -> next fixS. */
	short int fx_size;	/* How many bytes are involved? */
	char fx_pcrel;	/* TRUE: pc-relative. */
	char fx_pcrel_adjust;/* pc-relative offset adjust */
	char fx_im_disp;	/* TRUE: value is a displacement */
	bit_fixS *fx_bit_fixP;	/* IF NULL no bitfix's to do */  
	char fx_bsr;		/* sequent-hack */
	enum reloc_type fx_r_type;	/* Sparc hacks */
	char fx_callj;	/* TRUE if target is a 'callj'
			   (used by i960) */
	long fx_addnumber;
};

typedef struct fix fixS;

COMMON char *next_object_file_charP;

#ifndef MANY_SEGMENTS
COMMON fixS *text_fix_root, *text_fix_tail;	/* Chains fixSs. */
COMMON fixS *data_fix_root, *data_fix_tail;	/* Chains fixSs. */
#endif
COMMON fixS **seg_fix_rootP, **seg_fix_tailP;	/* -> one of above. */
extern long string_byte_count;
extern int section_alignment[];

#ifdef __STDC__

bit_fixS *bit_fix_new(char size, char offset, long base_type, long base_adj, long min, long max, long add);
void append(char **charPP, char *fromP, unsigned long length);
void record_alignment(segT seg, int align);
void write_object_file(void);

fixS *fix_new(fragS *frag,
	      int where,
	      int size,
	      symbolS *add_symbol,
	      symbolS *sub_symbol,
	      long offset,
	      int pcrel,
	      enum reloc_type r_type);

#else

bit_fixS *bit_fix_new();
fixS *fix_new();
void append();
void record_alignment();
void write_object_file();

#endif /* __STDC__ */

/*
 * Local Variables:
 * comment-column: 0
 * fill-column: 131
 * End:
 */

/* end of write.h */
Commit	Line	Data
fecd2382 RP	1	/* write.h -> write.c */
	2
	3	/* MODIFIED BY CHRIS BENENATI, FOR INTEL CORPORATION, 4/89 */
	4	/* write.h -> write.c
	5	Copyright (C) 1987 Free Software Foundation, Inc.
a39116f1 RP	6
	7	This file is part of GAS, the GNU Assembler.
	8
	9	GAS is free software; you can redistribute it and/or modify
	10	it under the terms of the GNU General Public License as published by
	11	the Free Software Foundation; either version 2, or (at your option)
	12	any later version.
	13
	14	GAS is distributed in the hope that it will be useful,
	15	but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	GNU General Public License for more details.
	18
	19	You should have received a copy of the GNU General Public License
	20	along with GAS; see the file COPYING. If not, write to
	21	the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
fecd2382 RP	22
	23	#ifndef TC_I960
	24	#ifdef hpux
	25	#define EXEC_MACHINE_TYPE HP9000S200_ID
	26	#endif
	27	#endif /* TC_I960 */
	28
	29	#ifndef LOCAL_LABEL
	30	#ifdef DOT_LABEL_PREFIX
	31	#define LOCAL_LABEL(name) (name[0] =='.' \
a39116f1	32	&& ( name [1] == 'L' \|\| name [1] == '.' ))
fecd2382 RP	33	#else /* not defined DOT_LABEL_PREFIX */
	34	#define LOCAL_LABEL(name) (name [0] == 'L' )
	35	#endif /* not defined DOT_LABEL_PREFIX */
	36	#endif /* LOCAL_LABEL */
	37
	38	#define S_LOCAL_NAME(s) (LOCAL_LABEL(S_GET_NAME(s)))
	39
	40	/* The bit_fix was implemented to support machines that need variables
	41	to be inserted in bitfields other than 1, 2 and 4 bytes.
	42	Furthermore it gives us a possibillity to mask in bits in the symbol
	43	when it's fixed in the objectcode and check the symbols limits.
a39116f1	44
fecd2382 RP	45	The or-mask is used to set the huffman bits in displacements for the
	46	ns32k port.
	47	The acbi, addqi, movqi, cmpqi instruction requires an assembler that
	48	can handle bitfields. Ie handle an expression, evaluate it and insert
	49	the result in an some bitfield. ( ex: 5 bits in a short field of a opcode)
a39116f1	50	*/
fecd2382 RP	51
fecd2382 RP	52	struct bit_fix {
a39116f1 RP	53	int fx_bit_size; /* Length of bitfield */
	54	int fx_bit_offset; /* Bit offset to bitfield */
	55	long fx_bit_base; /* Where do we apply the bitfix.
	56	If this is zero, default is assumed. */
	57	long fx_bit_base_adj;/* Adjustment of base */
	58	long fx_bit_max; /* Signextended max for bitfield */
	59	long fx_bit_min; /* Signextended min for bitfield */
	60	long fx_bit_add; /* Or mask, used for huffman prefix */
fecd2382 RP	61	};
	62	typedef struct bit_fix bit_fixS;
	63	/*
	64	* FixSs may be built up in any order.
	65	*/
	66
a39116f1 RP	67	struct fix {
	68	fragS fx_frag; / Which frag? */
	69	long fx_where; /* Where is the 1st byte to fix up? */
	70	symbolS fx_addsy; / NULL or Symbol whose value we add in. */
	71	symbolS fx_subsy; / NULL or Symbol whose value we subtract. */
	72	long fx_offset; /* Absolute number we add in. */
	73	struct fix fx_next; / NULL or -> next fixS. */
	74	short int fx_size; /* How many bytes are involved? */
	75	char fx_pcrel; /* TRUE: pc-relative. */
	76	char fx_pcrel_adjust;/* pc-relative offset adjust */
	77	char fx_im_disp; /* TRUE: value is a displacement */
	78	bit_fixS fx_bit_fixP; / IF NULL no bitfix's to do */
	79	char fx_bsr; /* sequent-hack */
	80	enum reloc_type fx_r_type; /* Sparc hacks */
	81	char fx_callj; /* TRUE if target is a 'callj'
	82	(used by i960) */
	83	long fx_addnumber;
fecd2382 RP	84	};
fecd2382 RP	85
a39116f1	86	typedef struct fix fixS;
fecd2382 RP	87
	88	COMMON char *next_object_file_charP;
	89
a39116f1	90	#ifndef MANY_SEGMENTS
fecd2382 RP	91	COMMON fixS text_fix_root, text_fix_tail; /* Chains fixSs. */
fecd2382 RP	92	COMMON fixS data_fix_root, data_fix_tail; /* Chains fixSs. */
a39116f1	93	#endif
fecd2382 RP	94	COMMON fixS seg_fix_rootP, seg_fix_tailP; /* -> one of above. */
	95	extern long string_byte_count;
	96	extern int section_alignment[];
	97
	98	#ifdef __STDC__
	99
	100	bit_fixS *bit_fix_new(char size, char offset, long base_type, long base_adj, long min, long max, long add);
	101	void append(char *charPP, char fromP, unsigned long length);
	102	void record_alignment(segT seg, int align);
	103	void write_object_file(void);
	104
	105	fixS fix_new(fragS frag,
	106	int where,
	107	int size,
	108	symbolS *add_symbol,
	109	symbolS *sub_symbol,
	110	long offset,
	111	int pcrel,
	112	enum reloc_type r_type);
	113
	114	#else
	115
	116	bit_fixS *bit_fix_new();
	117	fixS *fix_new();
	118	void append();
	119	void record_alignment();
	120	void write_object_file();
	121
	122	#endif /* __STDC__ */
	123
	124	/*
	125	* Local Variables:
	126	* comment-column: 0
	127	* fill-column: 131
	128	* End:
	129	*/
	130
	131	/* end of write.h */