[gcc.git] / gcc / halfpic.h

/* OSF/rose half-pic support definitions.
   Copyright (C) 1992 Free Software Foundation, Inc.

This file is part of GNU CC.

GNU CC 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.

GNU CC 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 GNU CC; see the file COPYING.  If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

#ifndef NO_HALF_PIC

/* Add prototype support.  */
#ifndef PROTO
#if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
#define PROTO(ARGS) ARGS
#else
#define PROTO(ARGS) ()
#endif
#endif

#if !defined(STDIO_PROTO) && !defined(NO_STDIO_H)
#ifndef BUFSIZ
#include <stdio.h>
#endif

#define STDIO_PROTO(ARGS) PROTO(ARGS)
#endif

#if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
union tree_node;		/* forward reference */
struct rtx_def;
#endif

/* Declare the variable flag_half_pic as 'int' instead of 'extern
   int', so that BSS variables are created (even though this is not
   strict ANSI).  This is because rtl.c now refers to the
   CONSTANT_ADDRESS_P macro, which in turn refers to flag_half_pic,
   and wants to call half_pic_address_p, whose address we also store
   in in a BSS variable.  This way, the gen* programs won't get
   unknown symbol errors when being linked (flag_half_pic will never
   be true in the gen* programs).  */

int flag_half_pic;			/* Global half-pic flag.  */
int (*ptr_half_pic_address_p) ();	/* ptr to half_pic_address_p () */

extern int  half_pic_number_ptrs;				/* # distinct pointers found */
extern int  half_pic_number_refs;				/* # half-pic references */
extern void half_pic_encode PROTO((union tree_node *));		/* encode whether half-pic */
extern void half_pic_declare PROTO((char *));			/* declare object local */
extern void half_pic_external PROTO((char *));			/* declare object external */
extern void half_pic_init PROTO((void));			/* half_pic initialization */
extern int  half_pic_address_p PROTO((struct rtx_def *));	/* true if an address is half-pic */
extern struct rtx_def *half_pic_ptr PROTO((struct rtx_def *));	/* return RTX for half-pic pointer */
#ifdef STDIO_PROTO
extern void half_pic_finish STDIO_PROTO((FILE *));		/* half_pic termination */
#endif

/* Macros to provide access to the half-pic stuff (so they can easily
   be stubbed out.  */

#define HALF_PIC_P()		(flag_half_pic)
#define HALF_PIC_NUMBER_PTRS	(half_pic_number_ptrs)
#define HALF_PIC_NUMBER_REFS	(half_pic_number_refs)

#define HALF_PIC_ENCODE(DECL)	half_pic_encode (DECL)
#define HALF_PIC_DECLARE(NAME)	half_pic_declare (NAME)
#define HALF_PIC_EXTERNAL(NAME)	half_pic_external (NAME)
#define HALF_PIC_INIT()		half_pic_init ()
#define HALF_PIC_FINISH(STREAM)	half_pic_finish (STREAM)
#define HALF_PIC_ADDRESS_P(X)	((*ptr_half_pic_address_p) (X))
#define HALF_PIC_PTR(X)		half_pic_ptr (X)

/* Prefix for half-pic names */
#ifndef HALF_PIC_PREFIX
#define	HALF_PIC_PREFIX	"__pic_"
#endif

#endif /* NO_HALF_PIC */
Commit	Line	Data
4f5a1f77 MM	1	/* OSF/rose half-pic support definitions.
	2	Copyright (C) 1992 Free Software Foundation, Inc.
	3
	4	This file is part of GNU CC.
	5
	6	GNU CC 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 2, or (at your option)
	9	any later version.
	10
	11	GNU CC 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 GNU CC; see the file COPYING. If not, write to
a35311b0 RK	18	the Free Software Foundation, 59 Temple Place - Suite 330,
a35311b0 RK	19	Boston, MA 02111-1307, USA. */
4f5a1f77	20
15af062f MM	21	#ifndef NO_HALF_PIC
15af062f MM	22
91d4931e MM	23	/* Add prototype support. */
	24	#ifndef PROTO
	25	#if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
	26	#define PROTO(ARGS) ARGS
	27	#else
	28	#define PROTO(ARGS) ()
	29	#endif
	30	#endif
	31
a6e98168	32	#if !defined(STDIO_PROTO) && !defined(NO_STDIO_H)
f09dcaa8 MM	33	#ifndef BUFSIZ
f09dcaa8 MM	34	#include <stdio.h>
91d4931e	35	#endif
f09dcaa8 MM	36
f09dcaa8 MM	37	#define STDIO_PROTO(ARGS) PROTO(ARGS)
91d4931e MM	38	#endif
	39
	40	#if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
	41	union tree_node; /* forward reference */
	42	struct rtx_def;
	43	#endif
	44
a89a7e4d MM	45	/* Declare the variable flag_half_pic as 'int' instead of 'extern
	46	int', so that BSS variables are created (even though this is not
	47	strict ANSI). This is because rtl.c now refers to the
	48	CONSTANT_ADDRESS_P macro, which in turn refers to flag_half_pic,
	49	and wants to call half_pic_address_p, whose address we also store
	50	in in a BSS variable. This way, the gen* programs won't get
	51	unknown symbol errors when being linked (flag_half_pic will never
	52	be true in the gen* programs). */
	53
	54	int flag_half_pic; /* Global half-pic flag. */
	55	int (ptr_half_pic_address_p) (); / ptr to half_pic_address_p () */
	56
91d4931e MM	57	extern int half_pic_number_ptrs; /* # distinct pointers found */
	58	extern int half_pic_number_refs; /* # half-pic references */
	59	extern void half_pic_encode PROTO((union tree_node )); / encode whether half-pic */
	60	extern void half_pic_declare PROTO((char )); / declare object local */
40fbfbea	61	extern void half_pic_external PROTO((char )); / declare object external */
91d4931e	62	extern void half_pic_init PROTO((void)); /* half_pic initialization */
91d4931e MM	63	extern int half_pic_address_p PROTO((struct rtx_def )); / true if an address is half-pic */
91d4931e MM	64	extern struct rtx_def half_pic_ptr PROTO((struct rtx_def )); /* return RTX for half-pic pointer */
a6e98168 MM	65	#ifdef STDIO_PROTO
	66	extern void half_pic_finish STDIO_PROTO((FILE )); / half_pic termination */
	67	#endif
4f5a1f77 MM	68
	69	/* Macros to provide access to the half-pic stuff (so they can easily
	70	be stubbed out. */
	71
	72	#define HALF_PIC_P() (flag_half_pic)
431b1786 CH	73	#define HALF_PIC_NUMBER_PTRS (half_pic_number_ptrs)
	74	#define HALF_PIC_NUMBER_REFS (half_pic_number_refs)
	75
4f5a1f77	76	#define HALF_PIC_ENCODE(DECL) half_pic_encode (DECL)
58891cf9	77	#define HALF_PIC_DECLARE(NAME) half_pic_declare (NAME)
40fbfbea	78	#define HALF_PIC_EXTERNAL(NAME) half_pic_external (NAME)
4f5a1f77	79	#define HALF_PIC_INIT() half_pic_init ()
af4a697f	80	#define HALF_PIC_FINISH(STREAM) half_pic_finish (STREAM)
a89a7e4d	81	#define HALF_PIC_ADDRESS_P(X) ((*ptr_half_pic_address_p) (X))
af4a697f MM	82	#define HALF_PIC_PTR(X) half_pic_ptr (X)
	83
	84	/* Prefix for half-pic names */
	85	#ifndef HALF_PIC_PREFIX
	86	#define HALF_PIC_PREFIX "__pic_"
	87	#endif
15af062f MM	88
15af062f MM	89	#endif /* NO_HALF_PIC */