1/* ----------------------------------------------------------------------- *
2 *
3 * Copyright 1996-2018 The NASM Authors - All Rights Reserved
4 * See the file AUTHORS included with the NASM distribution for
5 * the specific copyright holders.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following
9 * conditions are met:
10 *
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials provided
16 * with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
19 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
20 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
21 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
29 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
30 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 *
32 * ----------------------------------------------------------------------- */
33
34/*
35 * labels.h header file for labels.c
36 */
37
38#ifndef LABELS_H
39#define LABELS_H
40
41#include "compiler.h"
42
43enum mangle_index {
44 LM_LPREFIX, /* Local variable prefix */
45 LM_LSUFFIX, /* Local variable suffix */
46 LM_GPREFIX, /* Global variable prefix */
47 LM_GSUFFIX /* GLobal variable suffix */
48};
49
50enum label_type {
51 LBL_LOCAL, /* Must be zero */
52 LBL_GLOBAL,
53 LBL_STATIC,
54 LBL_EXTERN,
55 LBL_COMMON,
56 LBL_SPECIAL, /* Magic symbols like ..start */
57 LBL_BACKEND /* Backend-defined symbols like ..got */
58};
59
60bool lookup_label(const char *label, int32_t *segment, int64_t *offset);
61bool is_extern(const char *label);
62void define_label(const char *label, int32_t segment, int64_t offset,
63 bool normal);
64void backend_label(const char *label, int32_t segment, int64_t offset);
65bool declare_label(const char *label, enum label_type type,
66 const char *special);
67void set_label_mangle(enum mangle_index which, const char *what);
68int init_labels(void);
69void cleanup_labels(void);
70const char *local_scope(const char *label);
71
72extern uint64_t global_offset_changed;
73
74#endif /* LABELS_H */
75