7e92a81099
Ported to NetBSD by Pascal Renauld at Network Storage Solutions, Inc. Some Makefile changes by me. The 79xx code isn't yet used, driver for that to follow shortly.
165 lines
4.0 KiB
Plaintext
165 lines
4.0 KiB
Plaintext
%{
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/* $NetBSD: aicasm_macro_gram.y,v 1.1 2003/04/19 19:26:11 fvdl Exp $ */
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/*
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* Sub-parser for macro invocation in the Aic7xxx SCSI
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* Host adapter sequencer assembler.
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*
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* Copyright (c) 2001 Adaptec Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*
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* $FreeBSD: src/sys/dev/aic7xxx/aicasm/aicasm_macro_gram.y,v 1.2 2002/08/31 06:39:40 gibbs Exp $
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*/
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#include <sys/types.h>
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#include <inttypes.h>
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#include <regex.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sysexits.h>
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#ifdef __linux__
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#include "../queue.h"
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#else
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#include <sys/queue.h>
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#endif
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#include "aicasm.h"
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#include "aicasm_symbol.h"
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#include "aicasm_insformat.h"
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static symbol_t *macro_symbol;
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static void add_macro_arg(const char *argtext, int position);
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%}
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%union {
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int value;
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char *str;
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symbol_t *sym;
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}
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%token <str> T_ARG
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%token <sym> T_SYMBOL
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%type <value> macro_arglist
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%%
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macrocall:
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T_SYMBOL '('
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{
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macro_symbol = $1;
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}
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macro_arglist ')'
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{
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if (macro_symbol->info.macroinfo->narg != $4) {
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printf("Narg == %d", macro_symbol->info.macroinfo->narg);
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stop("Too few arguments for macro invocation",
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EX_DATAERR);
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/* NOTREACHED */
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}
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macro_symbol = NULL;
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YYACCEPT;
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}
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;
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macro_arglist:
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{
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/* Macros can take 0 arguments */
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$$ = 0;
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}
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| T_ARG
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{
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$$ = 1;
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add_macro_arg($1, 1);
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}
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| macro_arglist ',' T_ARG
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{
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if ($1 == 0) {
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stop("Comma without preceeding argument in arg list",
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EX_DATAERR);
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/* NOTREACHED */
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}
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$$ = $1 + 1;
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add_macro_arg($3, $$);
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}
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;
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%%
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static void
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add_macro_arg(const char *argtext, int argnum)
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{
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struct macro_arg *marg;
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int i;
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if (macro_symbol == NULL || macro_symbol->type != MACRO) {
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stop("Invalid current symbol for adding macro arg",
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EX_SOFTWARE);
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/* NOTREACHED */
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}
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/*
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* Macro Invocation. Find the appropriate argument and fill
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* in the replace ment text for this call.
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*/
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i = 0;
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STAILQ_FOREACH(marg, ¯o_symbol->info.macroinfo->args, links) {
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i++;
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if (i == argnum)
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break;
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}
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if (marg == NULL) {
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stop("Too many arguments for macro invocation", EX_DATAERR);
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/* NOTREACHED */
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}
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marg->replacement_text = strdup(argtext);
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if (marg->replacement_text == NULL) {
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stop("Unable to replicate replacement text", EX_SOFTWARE);
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/* NOTREACHED */
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}
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}
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void
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mmerror(const char *string)
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{
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stop(string, EX_DATAERR);
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}
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