/* OSF/rose half-pic support definitions.
- Copyright (C) 1992 Free Software Foundation, Inc.
+ Copyright (C) 1992, 1996 Free Software Foundation, Inc.
This file is part of GNU CC.
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. */
-
-extern int flag_half_pic; /* Global half-pic flag. */
-extern int half_pic_number_ptrs; /* # distinct pointers found */
-extern int half_pic_number_refs; /* # half-pic references */
-extern void half_pic_encode (); /* encode whether half-pic */
-extern void half_pic_declare (); /* declare object local */
-extern void half_pic_init (); /* half_pic initialization */
-extern void half_pic_finish (); /* half_pic termination */
-extern int half_pic_address_p (); /* true if an address is half-pic */
-extern struct rtx_def *half_pic_ptr (); /* return RTX for half-pic pointer */
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#ifndef NO_HALF_PIC
+
+/* Add prototype support. */
+/* ??? It would be nice to use gansidecl.h here but there's an extra
+ complication with NO_STDIO_H that must be dealt with. */
+#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_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) half_pic_address_p (X)
+#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 */
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