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#include <sys/queue.h>
55
56#include "aicasm.h"
57#include "aicasm_symbol.h"
58#include "aicasm_insformat.h"
59
60static symbol_t *macro_symbol;
61
62static void add_macro_arg(const char *argtext, int position);
63
64extern int mmlex(void);
65extern int mmparse(void);
66
67%}
68
69%union {
70	int		value;
71	char		*str;
72	symbol_t	*sym;
73}
74
75
76%token <str> T_ARG
77
78%token <sym> T_SYMBOL
79
80%type <value> macro_arglist
81
82%%
83
84macrocall:
85	T_SYMBOL '('
86	{
87		macro_symbol = $1;
88	}
89	macro_arglist ')'
90	{
91		if (macro_symbol->info.macroinfo->narg != $4) {
92			printf("Narg == %d", macro_symbol->info.macroinfo->narg);
93			stop("Too few arguments for macro invocation",
94			     EX_DATAERR);
95			/* NOTREACHED */
96		}
97		macro_symbol = NULL;
98		YYACCEPT;
99	}
100;
101
102macro_arglist:
103	{
104		/* Macros can take 0 arguments */
105		$$ = 0;
106	}
107|	T_ARG
108	{
109		$$ = 1;
110		add_macro_arg($1, 1);
111	}
112|	macro_arglist ',' T_ARG
113	{
114		if ($1 == 0) {
115			stop("Comma without preceding argument in arg list",
116			     EX_DATAERR);
117			/* NOTREACHED */
118		}
119		$$ = $1 + 1;
120		add_macro_arg($3, $$);
121	}
122;
123
124%%
125
126static void
127add_macro_arg(const char *argtext, int argnum)
128{
129	struct macro_arg *marg;
130	int i;
131
132	if (macro_symbol == NULL || macro_symbol->type != MACRO) {
133		stop("Invalid current symbol for adding macro arg",
134		     EX_SOFTWARE);
135		/* NOTREACHED */
136	}
137	/*
138	 * Macro Invocation.  Find the appropriate argument and fill
139	 * in the replace ment text for this call.
140	 */
141	i = 0;
142	STAILQ_FOREACH(marg, &macro_symbol->info.macroinfo->args, links) {
143		i++;
144		if (i == argnum)
145			break;
146	}
147	if (marg == NULL) {
148		stop("Too many arguments for macro invocation", EX_DATAERR);
149		/* NOTREACHED */
150	}
151	marg->replacement_text = strdup(argtext);
152	if (marg->replacement_text == NULL) {
153		stop("Unable to replicate replacement text", EX_SOFTWARE);
154		/* NOTREACHED */
155	}
156}
157
158static void
159mmerror(const char *string)
160{
161	stop(string, EX_DATAERR);
162}
163