mirror of
https://github.com/netwide-assembler/nasm.git
synced 2024-12-15 09:09:58 +08:00
7ad25b2e18
NASM convention is to use all-upper-case for "real" information, and mixed-case (upper case common prefix, lower case description) for meta-information. This is a highly useful distinction. Thus "LBL_NONE" implies an actual label of type "NONE", as opposed to no label at all. Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
80 lines
3.1 KiB
C
80 lines
3.1 KiB
C
/* ----------------------------------------------------------------------- *
|
|
*
|
|
* Copyright 1996-2018 The NASM Authors - All Rights Reserved
|
|
* See the file AUTHORS included with the NASM distribution for
|
|
* the specific copyright holders.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials provided
|
|
* with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
|
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
|
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
|
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
|
|
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* ----------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* labels.h header file for labels.c
|
|
*/
|
|
|
|
#ifndef LABELS_H
|
|
#define LABELS_H
|
|
|
|
#include "compiler.h"
|
|
|
|
enum mangle_index {
|
|
LM_LPREFIX, /* Local variable prefix */
|
|
LM_LSUFFIX, /* Local variable suffix */
|
|
LM_GPREFIX, /* Global variable prefix */
|
|
LM_GSUFFIX /* GLobal variable suffix */
|
|
};
|
|
|
|
enum label_type {
|
|
LBL_none = -1, /* No label */
|
|
LBL_LOCAL = 0, /* Must be zero */
|
|
LBL_STATIC,
|
|
LBL_GLOBAL,
|
|
LBL_EXTERN,
|
|
LBL_REQUIRED, /* Like extern but emit even if unused */
|
|
LBL_COMMON,
|
|
LBL_SPECIAL, /* Magic symbols like ..start */
|
|
LBL_BACKEND /* Backend-defined symbols like ..got */
|
|
};
|
|
|
|
enum label_type lookup_label(const char *label, int32_t *segment, int64_t *offset);
|
|
static inline bool is_extern(enum label_type type)
|
|
{
|
|
return type == LBL_EXTERN || type == LBL_REQUIRED;
|
|
}
|
|
void define_label(const char *label, int32_t segment, int64_t offset,
|
|
bool normal);
|
|
void backend_label(const char *label, int32_t segment, int64_t offset);
|
|
bool declare_label(const char *label, enum label_type type,
|
|
const char *special);
|
|
void set_label_mangle(enum mangle_index which, const char *what);
|
|
int init_labels(void);
|
|
void cleanup_labels(void);
|
|
const char *local_scope(const char *label);
|
|
|
|
extern uint64_t global_offset_changed;
|
|
|
|
#endif /* LABELS_H */
|