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161 lines
3.9 KiB
161 lines
3.9 KiB
%{ |
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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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* $Id: //depot/aic7xxx/aic7xxx/aicasm/aicasm_macro_gram.y#5 $ |
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* |
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* $FreeBSD$ |
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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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#include "../queue.h" |
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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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void mmerror(const char *string); |
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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 preceding 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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