1%{
2/*
3 * Sub-parser for macro invocation in the Aic7xxx SCSI
4 * 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 without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions, and the following disclaimer,
14 *    without modification.
15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
16 *    substantially similar to the "NO WARRANTY" disclaimer below
17 *    ("Disclaimer") and any redistribution must be conditioned upon
18 *    including a substantially similar Disclaimer requirement for further
19 *    binary redistribution.
20 * 3. Neither the names of the above-listed copyright holders nor the names
21 *    of any contributors may be used to endorse or promote products derived
22 *    from this software without specific prior written permission.
23 *
24 * Alternatively, this software may be distributed under the terms of the
25 * GNU General Public License ("GPL") version 2 as published by the Free
26 * Software Foundation.
27 *
28 * NO WARRANTY
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
30 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
31 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
32 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
33 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 * 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) ARISING
38 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39 * 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_ARG
76
77%token <sym> T_SYMBOL
78
79%type <value> macro_arglist
80
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		$$ = 0;
105	}
106|	T_ARG
107	{
108		$$ = 1;
109		add_macro_arg($1, 1);
110	}
111|	macro_arglist ',' T_ARG
112	{
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 void
126add_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 fill
138	 * in the replace ment text for this call.
139	 */
140	i = 0;
141	STAILQ_FOREACH(marg, &macro_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
157void
158mmerror(const char *string)
159{
160	stop(string, EX_DATAERR);
161}
162