Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the

non-i386, non-unix, and generatable files have been trimmed, but can easily
be added in later if needed.

gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's
handy to have both available for reference for such little cost.

The freebsd-specific changes will then be committed, and once the dust has
settled, the bmakefiles will be committed to use this code.

1 files changed, 89 insertions, 0 deletions

diff --git a/contrib/gcc/halfpic.h b/contrib/gcc/halfpic.h
new file mode 100644
index 0000000..10f6972
--- /dev/null
+++ b/contrib/gcc/halfpic.h
@@ -0,0 +1,89 @@
+/* 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 */