| /* $Id$ |
| * NASM-compatible parser header file |
| * |
| * Copyright (C) 2002-2007 Peter Johnson |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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 AUTHOR AND OTHER 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 AUTHOR OR OTHER 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. |
| */ |
| #ifndef YASM_NASM_PARSER_H |
| #define YASM_NASM_PARSER_H |
| |
| #define YYCTYPE unsigned char |
| |
| #define MAX_SAVED_LINE_LEN 80 |
| |
| enum tokentype { |
| INTNUM = 258, |
| FLTNUM, |
| DIRECTIVE_NAME, |
| FILENAME, |
| STRING, |
| SIZE_OVERRIDE, |
| DECLARE_DATA, |
| RESERVE_SPACE, |
| INCBIN, |
| EQU, |
| TIMES, |
| SEG, |
| WRT, |
| ABS, |
| REL, |
| NOSPLIT, |
| STRICT, |
| INSN, |
| PREFIX, |
| REG, |
| SEGREG, |
| TARGETMOD, |
| LEFT_OP, |
| RIGHT_OP, |
| SIGNDIV, |
| SIGNMOD, |
| START_SECTION_ID, |
| ID, |
| LOCAL_ID, |
| SPECIAL_ID, |
| LINE, |
| NONE /* special token for lookahead */ |
| }; |
| |
| typedef union { |
| unsigned int int_info; |
| char *str_val; |
| yasm_intnum *intn; |
| yasm_floatnum *flt; |
| yasm_bytecode *bc; |
| uintptr_t arch_data; |
| struct { |
| char *contents; |
| size_t len; |
| } str; |
| } yystype; |
| #define YYSTYPE yystype |
| |
| typedef struct yasm_parser_nasm { |
| FILE *in; |
| int debug; |
| |
| /*@only@*/ yasm_object *object; |
| |
| /* last "base" label for local (.) labels */ |
| /*@null@*/ char *locallabel_base; |
| size_t locallabel_base_len; |
| |
| /*@dependent@*/ yasm_preproc *preproc; |
| /*@dependent@*/ yasm_errwarns *errwarns; |
| |
| /*@dependent@*/ yasm_linemap *linemap; |
| |
| /*@null@*/ yasm_bytecode *prev_bc; |
| |
| int save_input; |
| YYCTYPE save_line[2][MAX_SAVED_LINE_LEN]; |
| int save_last; |
| |
| yasm_scanner s; |
| enum { |
| INITIAL, |
| DIRECTIVE, |
| SECTION_DIRECTIVE, |
| DIRECTIVE2, |
| LINECHG, |
| LINECHG2, |
| INSTRUCTION |
| } state; |
| |
| int token; /* enum tokentype or any character */ |
| yystype tokval; |
| char tokch; /* first character of token */ |
| |
| /* one token of lookahead; used sparingly */ |
| int peek_token; /* NONE if none */ |
| yystype peek_tokval; |
| char peek_tokch; |
| |
| /* Starting point of the absolute section. NULL if not in an absolute |
| * section. |
| */ |
| /*@null@*/ yasm_expr *absstart; |
| |
| /* Current location inside an absolute section (including the start). |
| * NULL if not in an absolute section. |
| */ |
| /*@null@*/ yasm_expr *abspos; |
| } yasm_parser_nasm; |
| |
| /* shorter access names to commonly used parser_nasm fields */ |
| #define p_object (parser_nasm->object) |
| #define p_symtab (parser_nasm->object->symtab) |
| #define cursect (parser_nasm->object->cur_section) |
| #define curtok (parser_nasm->token) |
| #define curval (parser_nasm->tokval) |
| |
| #define INTNUM_val (curval.intn) |
| #define FLTNUM_val (curval.flt) |
| #define DIRECTIVE_NAME_val (curval.str_val) |
| #define FILENAME_val (curval.str_val) |
| #define STRING_val (curval.str) |
| #define SIZE_OVERRIDE_val (curval.int_info) |
| #define DECLARE_DATA_val (curval.int_info) |
| #define RESERVE_SPACE_val (curval.int_info) |
| #define INSN_val (curval.bc) |
| #define PREFIX_val (curval.arch_data) |
| #define REG_val (curval.arch_data) |
| #define SEGREG_val (curval.arch_data) |
| #define TARGETMOD_val (curval.arch_data) |
| #define ID_val (curval.str_val) |
| |
| #define cur_line (yasm_linemap_get_current(parser_nasm->linemap)) |
| |
| #define p_expr_new_tree(l,o,r) yasm_expr_create_tree(l,o,r,cur_line) |
| #define p_expr_new_branch(o,r) yasm_expr_create_branch(o,r,cur_line) |
| #define p_expr_new_ident(r) yasm_expr_create_ident(r,cur_line) |
| |
| void nasm_parser_parse(yasm_parser_nasm *parser_nasm); |
| void nasm_parser_cleanup(yasm_parser_nasm *parser_nasm); |
| int nasm_parser_lex(YYSTYPE *lvalp, yasm_parser_nasm *parser_nasm); |
| |
| #endif |