Yasm Assembler mainline development tree (ffmpeg 依赖)
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/* $IdPath$
* Symbol table handling header file
*
* Copyright (C) 2001 Michael Urman, Peter Johnson
*
* This file is part of YASM.
*
* YASM is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* YASM is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef YASM_SYMREC_H
#define YASM_SYMREC_H
#ifndef YASM_FLOATNUM
#define YASM_FLOATNUM
typedef struct floatnum floatnum;
#endif
#ifndef YASM_SECTION
#define YASM_SECTION
typedef struct section section;
#endif
#ifndef YASM_BYTECODE
#define YASM_BYTECODE
typedef struct bytecode bytecode;
#endif
/* EXTERN and COMMON are mutually exclusive */
typedef enum {
SYM_LOCAL = 0, /* default, local only */
SYM_GLOBAL = 1 << 0, /* if it's declared GLOBAL */
SYM_COMMON = 1 << 1, /* if it's declared COMMON */
SYM_EXTERN = 1 << 2 /* if it's declared EXTERN */
} SymVisibility;
#ifndef YASM_SYMREC
#define YASM_SYMREC
typedef struct symrec symrec;
#endif
symrec *symrec_use(const char *name);
symrec *symrec_define_constant_int(const char *name, unsigned long int_val);
symrec *symrec_define_constant_float(const char *name, floatnum *flt);
symrec *symrec_define_label(const char *name, section *sect, bytecode *precbc);
symrec *symrec_declare(const char *name, SymVisibility vis);
/* Get the numeric 32-bit value of a symbol if possible.
* Return value is IF POSSIBLE, not the value.
* If resolve_label is true, tries to get offset of labels, otherwise it
* returns not possible.
*/
int symrec_get_int_value(const symrec *sym, unsigned long *ret_val,
int resolve_label);
const char *symrec_get_name(const symrec *sym);
void symrec_foreach(int (*func) (const char *name, symrec *rec));
#endif