1 /* ----------------------------------------------------------------------- *
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.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following
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.
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.
32 * ----------------------------------------------------------------------- */
35 * labels.h header file for labels.c
44 LM_LPREFIX
, /* Local variable prefix */
45 LM_LSUFFIX
, /* Local variable suffix */
46 LM_GPREFIX
, /* Global variable prefix */
47 LM_GSUFFIX
/* GLobal variable suffix */
51 LBL_none
= -1, /* No label */
52 LBL_LOCAL
= 0, /* Must be zero */
56 LBL_REQUIRED
, /* Like extern but emit even if unused */
58 LBL_SPECIAL
, /* Magic symbols like ..start */
59 LBL_BACKEND
/* Backend-defined symbols like ..got */
62 enum label_type
lookup_label(const char *label
, int32_t *segment
, int64_t *offset
);
63 static inline bool is_extern(enum label_type type
)
65 return type
== LBL_EXTERN
|| type
== LBL_REQUIRED
;
67 void define_label(const char *label
, int32_t segment
, int64_t offset
,
69 void backend_label(const char *label
, int32_t segment
, int64_t offset
);
70 bool declare_label(const char *label
, enum label_type type
,
72 void set_label_mangle(enum mangle_index which
, const char *what
);
73 int init_labels(void);
74 void cleanup_labels(void);
75 const char *local_scope(const char *label
);
77 extern uint64_t global_offset_changed
;