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b8556fa1a7
Estimated hours taken: 0.5 Branches: main Fix a problem where `mmake check_namespace' got a compile error when compiling mercury_univ.check_hdr.c on ender, due to system headers getting included before GCC global register variable declarations. runtime/mercury_univ.h: Include "mercury_regs.h", before any other #includes.
72 lines
2.9 KiB
C
72 lines
2.9 KiB
C
/*
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** vim: ts=4 sw=4 expandtab
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*/
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/*
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** Copyright (C) 2003-2004 The University of Melbourne.
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** This file may only be copied under the terms of the GNU Library General
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** Public License - see the file COPYING.LIB in the Mercury distribution.
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*/
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/*
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** mercury_univ.h - definitions for manipulating univs.
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*/
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#ifndef MERCURY_UNIV_H
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#define MERCURY_UNIV_H
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#include "mercury_regs.h" /* must come first (see mercury_imp.h) */
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#include "mercury_conf_param.h" /* for MR_RECORD_TERM_SIZES */
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#include "mercury_tags.h" /* for MR_field */
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#include "mercury_heap.h" /* for MR_tag_offset_incr_hp_msg */
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#include "mercury_debug.h"
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/*
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** `univ' is usually represented as a two word structure.
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** The first word contains the address of a type_info for the type.
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** The second word contains the data. With MR_RECORD_TERM_SIZES,
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** we add an extra field at offset -1 to record the size of the term.
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*/
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#define MR_UNIV_OFFSET_FOR_TYPEINFO 0
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#define MR_UNIV_OFFSET_FOR_DATA 1
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#ifdef MR_RECORD_TERM_SIZES
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#define MR_define_univ_size_slot(univ, typeinfo, value) \
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do { \
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MR_define_size_slot(MR_UNIV_TAG, (univ), \
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MR_term_size((typeinfo), (value))); \
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} while (0)
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#else
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#define MR_define_univ_size_slot(univ, typeinfo, value) ((void) 0)
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#endif
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#define MR_define_univ_fields(univ, typeinfo, value) \
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do { \
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MR_define_univ_size_slot((univ), (typeinfo), (value)); \
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MR_field(MR_UNIV_TAG, (univ), MR_UNIV_OFFSET_FOR_TYPEINFO) \
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= (MR_Word) (typeinfo); \
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MR_field(MR_UNIV_TAG, (univ), MR_UNIV_OFFSET_FOR_DATA) \
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= (MR_Word) (value); \
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} while (0)
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#define MR_unravel_univ(univ, typeinfo, value) \
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do { \
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(typeinfo) = (MR_TypeInfo) MR_field(MR_UNIV_TAG, (univ), \
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MR_UNIV_OFFSET_FOR_TYPEINFO); \
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(value) = MR_field(MR_UNIV_TAG, (univ), \
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MR_UNIV_OFFSET_FOR_DATA); \
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MR_debug_unravel_univ((univ), (typeinfo), (value)); \
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} while (0)
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/* Allocate a univ on the heap */
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/* XXX we should use MR_tag_offset_incr_hp_msg() here */
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#define MR_new_univ_on_hp(univ, typeinfo, value) \
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do { \
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MR_tag_offset_incr_hp((univ), MR_UNIV_TAG, MR_SIZE_SLOT_SIZE, \
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MR_SIZE_SLOT_SIZE + 2); \
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MR_define_univ_fields((univ), (typeinfo), (value)); \
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MR_debug_new_univ_on_hp((univ), (typeinfo), (value)); \
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} while (0)
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#endif /* MERCURY_UNIV_H */
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