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1%{2/*3 * Sub-parser for macro invocation in the Aic7xxx SCSI4 * Host adapter sequencer assembler.5 *6 * Copyright (c) 2001 Adaptec Inc.7 * All rights reserved.8 *9 * Redistribution and use in source and binary forms, with or without10 * modification, are permitted provided that the following conditions11 * are met:12 * 1. Redistributions of source code must retain the above copyright13 * notice, this list of conditions, and the following disclaimer,14 * without modification.15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer16 * substantially similar to the "NO WARRANTY" disclaimer below17 * ("Disclaimer") and any redistribution must be conditioned upon18 * including a substantially similar Disclaimer requirement for further19 * binary redistribution.20 * 3. Neither the names of the above-listed copyright holders nor the names21 * of any contributors may be used to endorse or promote products derived22 * from this software without specific prior written permission.23 *24 * Alternatively, this software may be distributed under the terms of the25 * GNU General Public License ("GPL") version 2 as published by the Free26 * Software Foundation.27 *28 * NO WARRANTY29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS30 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT31 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR32 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT33 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING38 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE39 * POSSIBILITY OF SUCH DAMAGES.40 *41 * $Id: //depot/aic7xxx/aic7xxx/aicasm/aicasm_macro_gram.y#5 $42 *43 * $FreeBSD$44 */45 46#include <sys/types.h>47 48#include <inttypes.h>49#include <regex.h>50#include <stdio.h>51#include <stdlib.h>52#include <string.h>53#include <sysexits.h>54 55#include "../queue.h"56 57#include "aicasm.h"58#include "aicasm_symbol.h"59#include "aicasm_insformat.h"60 61static symbol_t *macro_symbol;62 63static void add_macro_arg(const char *argtext, int position);64void mmerror(const char *string);65 66%}67 68%union {69 int value;70 char *str;71 symbol_t *sym;72}73 74 75%token <str> T_ARG76 77%token <sym> T_SYMBOL78 79%type <value> macro_arglist80 81%%82 83macrocall:84 T_SYMBOL '('85 {86 macro_symbol = $1;87 }88 macro_arglist ')'89 {90 if (macro_symbol->info.macroinfo->narg != $4) {91 printf("Narg == %d", macro_symbol->info.macroinfo->narg);92 stop("Too few arguments for macro invocation",93 EX_DATAERR);94 /* NOTREACHED */95 }96 macro_symbol = NULL;97 YYACCEPT;98 }99;100 101macro_arglist:102 {103 /* Macros can take 0 arguments */104 $$ = 0;105 }106| T_ARG107 {108 $$ = 1;109 add_macro_arg($1, 1);110 }111| macro_arglist ',' T_ARG112 {113 if ($1 == 0) {114 stop("Comma without preceding argument in arg list",115 EX_DATAERR);116 /* NOTREACHED */117 }118 $$ = $1 + 1;119 add_macro_arg($3, $$);120 }121;122 123%%124 125static void126add_macro_arg(const char *argtext, int argnum)127{128 struct macro_arg *marg;129 int i;130 131 if (macro_symbol == NULL || macro_symbol->type != MACRO) {132 stop("Invalid current symbol for adding macro arg",133 EX_SOFTWARE);134 /* NOTREACHED */135 }136 /*137 * Macro Invocation. Find the appropriate argument and fill138 * in the replace ment text for this call.139 */140 i = 0;141 STAILQ_FOREACH(marg, ¯o_symbol->info.macroinfo->args, links) {142 i++;143 if (i == argnum)144 break;145 }146 if (marg == NULL) {147 stop("Too many arguments for macro invocation", EX_DATAERR);148 /* NOTREACHED */149 }150 marg->replacement_text = strdup(argtext);151 if (marg->replacement_text == NULL) {152 stop("Unable to replicate replacement text", EX_SOFTWARE);153 /* NOTREACHED */154 }155}156 157void158mmerror(const char *string)159{160 stop(string, EX_DATAERR);161}162