mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-07 13:41:32 +00:00
151 lines
3.1 KiB
C
151 lines
3.1 KiB
C
/*
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def.c
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def management and symbol tables
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Copyright (C) 2002 Bill Currie <bill@taniwha.org>
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Copyright (C) 1996-1997 Id Software, Inc.
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Author: Bill Currie <bill@taniwha.org>
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Date: 2002/06/09
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program 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.
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See the 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 this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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static __attribute__ ((used)) const char rcsid[] =
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"$Id$";
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <stdlib.h>
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#include <QF/hash.h>
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#include <QF/sys.h>
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#include <QF/va.h>
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#include "qfcc.h"
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#include "def.h"
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#include "defspace.h"
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#include "diagnostic.h"
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#include "expr.h"
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#include "immediate.h"
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#include "options.h"
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#include "reloc.h"
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#include "strpool.h"
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#include "struct.h"
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#include "type.h"
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static def_t *free_defs;
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static void
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set_storage_bits (def_t *def, storage_class_t storage)
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{
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switch (storage) {
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case st_system:
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def->system = 1;
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// fall through
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case st_global:
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def->global = 1;
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def->external = 0;
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def->local = 0;
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break;
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case st_extern:
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def->global = 1;
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def->external = 1;
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def->local = 0;
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break;
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case st_static:
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def->external = 0;
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def->global = 0;
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def->local = 0;
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break;
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case st_local:
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def->external = 0;
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def->global = 0;
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def->local = 1;
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break;
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}
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def->initialized = 0;
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}
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def_t *
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new_def (const char *name, type_t *type, defspace_t *space,
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storage_class_t storage)
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{
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def_t *def;
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ALLOC (16384, def_t, defs, def);
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if (!space && storage != st_extern)
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internal_error (0, "non-external def with no storage space");
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def->return_addr = __builtin_return_address (0);
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def->name = name ? save_string (name) : 0;
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def->type = type;
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def->space = space;
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if (storage != st_extern) {
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*space->def_tail = def;
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space->def_tail = &def->next;
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def->offset = defspace_new_loc (space, type_size (type));
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}
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def->file = pr.source_file;
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def->line = pr.source_line;
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set_storage_bits (def, storage);
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return def;
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}
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void
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free_def (def_t *def)
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{
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if (def->space) {
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def_t **d;
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for (d = &def->space->defs; *d && *d != def; d = &(*d)->next)
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;
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*d = def->next;
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defspace_free_loc (def->space, def->offset, type_size (def->type));
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}
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def->next = free_defs;
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free_defs = def;
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}
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void
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def_to_ddef (def_t *def, ddef_t *ddef, int aux)
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{
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type_t *type = def->type;
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if (aux)
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type = type->t.fldptr.type; // aux is true only for fields
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ddef->type = type->type;
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ddef->ofs = def->offset;
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ddef->s_name = ReuseString (def->name);
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}
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