74 lines
3.0 KiB
C
74 lines
3.0 KiB
C
/* OSF/rose half-pic support definitions.
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Copyright (C) 1992, 1996, 1997 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef NO_HALF_PIC
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#include "gansidecl.h"
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#if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
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union tree_node; /* forward reference */
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struct rtx_def;
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#endif
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/* Declare the variable flag_half_pic as 'int' instead of 'extern
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int', so that BSS variables are created (even though this is not
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strict ANSI). This is because rtl.c now refers to the
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CONSTANT_ADDRESS_P macro, which in turn refers to flag_half_pic,
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and wants to call half_pic_address_p, whose address we also store
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in a BSS variable. This way, the gen* programs won't get
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unknown symbol errors when being linked (flag_half_pic will never
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be true in the gen* programs). */
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int flag_half_pic; /* Global half-pic flag. */
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int (*ptr_half_pic_address_p) (); /* ptr to half_pic_address_p () */
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extern int half_pic_number_ptrs; /* # distinct pointers found */
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extern int half_pic_number_refs; /* # half-pic references */
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extern void half_pic_encode PROTO((union tree_node *)); /* encode whether half-pic */
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extern void half_pic_declare PROTO((char *)); /* declare object local */
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extern void half_pic_external PROTO((char *)); /* declare object external */
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extern void half_pic_init PROTO((void)); /* half_pic initialization */
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extern int half_pic_address_p PROTO((struct rtx_def *)); /* true if an address is half-pic */
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extern struct rtx_def *half_pic_ptr PROTO((struct rtx_def *)); /* return RTX for half-pic pointer */
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/* Can't use prototype since FILE isn't defined yet. */
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extern void half_pic_finish (/* FILE * */); /* half_pic termination */
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/* Macros to provide access to the half-pic stuff (so they can easily
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be stubbed out. */
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#define HALF_PIC_P() (flag_half_pic)
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#define HALF_PIC_NUMBER_PTRS (half_pic_number_ptrs)
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#define HALF_PIC_NUMBER_REFS (half_pic_number_refs)
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#define HALF_PIC_ENCODE(DECL) half_pic_encode (DECL)
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#define HALF_PIC_DECLARE(NAME) half_pic_declare (NAME)
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#define HALF_PIC_EXTERNAL(NAME) half_pic_external (NAME)
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#define HALF_PIC_INIT() half_pic_init ()
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#define HALF_PIC_FINISH(STREAM) half_pic_finish (STREAM)
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#define HALF_PIC_ADDRESS_P(X) ((*ptr_half_pic_address_p) (X))
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#define HALF_PIC_PTR(X) half_pic_ptr (X)
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/* Prefix for half-pic names */
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#ifndef HALF_PIC_PREFIX
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#define HALF_PIC_PREFIX "__pic_"
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#endif
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#endif /* NO_HALF_PIC */
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