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- /* 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, 675 Mass Ave, Cambridge, MA 02139, 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 */
-