[8833] | 1 | /* OSF/rose half-pic support definitions. |
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| 2 | Copyright (C) 1992 Free Software Foundation, Inc. |
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| 3 | |
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| 4 | This file is part of GNU CC. |
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| 5 | |
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| 6 | GNU CC is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 2, or (at your option) |
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| 9 | any later version. |
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| 10 | |
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| 11 | GNU CC is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | GNU General Public License for more details. |
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| 15 | |
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| 16 | You should have received a copy of the GNU General Public License |
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| 17 | along with GNU CC; see the file COPYING. If not, write to |
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| 18 | the Free Software Foundation, 59 Temple Place - Suite 330, |
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| 19 | Boston, MA 02111-1307, USA. */ |
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| 20 | |
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| 21 | #ifndef NO_HALF_PIC |
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| 22 | |
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| 23 | /* Add prototype support. */ |
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| 24 | #ifndef PROTO |
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| 25 | #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__) |
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| 26 | #define PROTO(ARGS) ARGS |
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| 27 | #else |
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| 28 | #define PROTO(ARGS) () |
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| 29 | #endif |
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| 30 | #endif |
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| 31 | |
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| 32 | #if !defined(STDIO_PROTO) && !defined(NO_STDIO_H) |
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| 33 | #ifndef BUFSIZ |
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| 34 | #include <stdio.h> |
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| 35 | #endif |
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| 36 | |
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| 37 | #define STDIO_PROTO(ARGS) PROTO(ARGS) |
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| 38 | #endif |
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| 39 | |
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| 40 | #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__) |
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| 41 | union tree_node; /* forward reference */ |
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| 42 | struct rtx_def; |
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| 43 | #endif |
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| 44 | |
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| 45 | /* Declare the variable flag_half_pic as 'int' instead of 'extern |
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| 46 | int', so that BSS variables are created (even though this is not |
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| 47 | strict ANSI). This is because rtl.c now refers to the |
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| 48 | CONSTANT_ADDRESS_P macro, which in turn refers to flag_half_pic, |
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| 49 | and wants to call half_pic_address_p, whose address we also store |
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| 50 | in in a BSS variable. This way, the gen* programs won't get |
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| 51 | unknown symbol errors when being linked (flag_half_pic will never |
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| 52 | be true in the gen* programs). */ |
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| 53 | |
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| 54 | int flag_half_pic; /* Global half-pic flag. */ |
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| 55 | int (*ptr_half_pic_address_p) (); /* ptr to half_pic_address_p () */ |
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| 56 | |
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| 57 | extern int half_pic_number_ptrs; /* # distinct pointers found */ |
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| 58 | extern int half_pic_number_refs; /* # half-pic references */ |
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| 59 | extern void half_pic_encode PROTO((union tree_node *)); /* encode whether half-pic */ |
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| 60 | extern void half_pic_declare PROTO((char *)); /* declare object local */ |
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| 61 | extern void half_pic_external PROTO((char *)); /* declare object external */ |
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| 62 | extern void half_pic_init PROTO((void)); /* half_pic initialization */ |
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| 63 | extern int half_pic_address_p PROTO((struct rtx_def *)); /* true if an address is half-pic */ |
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| 64 | extern struct rtx_def *half_pic_ptr PROTO((struct rtx_def *)); /* return RTX for half-pic pointer */ |
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| 65 | #ifdef STDIO_PROTO |
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| 66 | extern void half_pic_finish STDIO_PROTO((FILE *)); /* half_pic termination */ |
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| 67 | #endif |
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| 68 | |
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| 69 | /* Macros to provide access to the half-pic stuff (so they can easily |
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| 70 | be stubbed out. */ |
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| 71 | |
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| 72 | #define HALF_PIC_P() (flag_half_pic) |
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| 73 | #define HALF_PIC_NUMBER_PTRS (half_pic_number_ptrs) |
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| 74 | #define HALF_PIC_NUMBER_REFS (half_pic_number_refs) |
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| 75 | |
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| 76 | #define HALF_PIC_ENCODE(DECL) half_pic_encode (DECL) |
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| 77 | #define HALF_PIC_DECLARE(NAME) half_pic_declare (NAME) |
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| 78 | #define HALF_PIC_EXTERNAL(NAME) half_pic_external (NAME) |
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| 79 | #define HALF_PIC_INIT() half_pic_init () |
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| 80 | #define HALF_PIC_FINISH(STREAM) half_pic_finish (STREAM) |
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| 81 | #define HALF_PIC_ADDRESS_P(X) ((*ptr_half_pic_address_p) (X)) |
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| 82 | #define HALF_PIC_PTR(X) half_pic_ptr (X) |
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| 83 | |
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| 84 | /* Prefix for half-pic names */ |
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| 85 | #ifndef HALF_PIC_PREFIX |
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| 86 | #define HALF_PIC_PREFIX "__pic_" |
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| 87 | #endif |
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| 88 | |
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| 89 | #endif /* NO_HALF_PIC */ |
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