patch-2.4.21 linux-2.4.21/drivers/scsi/aic79xx/aicasm/aicasm_macro_gram.y

• Lines: 165
• Date: 2003-06-13 07:51:36.000000000 -0700
• Orig file: linux-2.4.20/drivers/scsi/aic79xx/aicasm/aicasm_macro_gram.y
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.20/drivers/scsi/aic79xx/aicasm/aicasm_macro_gram.y linux-2.4.21/drivers/scsi/aic79xx/aicasm/aicasm_macro_gram.y
@@ -0,0 +1,164 @@
+%{
+/*
+ * Sub-parser for macro invocation in the Aic7xxx SCSI
+ * Host adapter sequencer assembler.
+ *
+ * Copyright (c) 2001 Adaptec Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ *
+ * $Id: //depot/aic7xxx/aic7xxx/aicasm/aicasm_macro_gram.y#5 $
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/types.h>
+
+#include <inttypes.h>
+#include <regex.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sysexits.h>
+
+#ifdef __linux__
+#include "../queue.h"
+#else
+#include <sys/queue.h>
+#endif
+
+#include "aicasm.h"
+#include "aicasm_symbol.h"
+#include "aicasm_insformat.h"
+
+static symbol_t *macro_symbol;
+
+static void add_macro_arg(const char *argtext, int position);
+
+%}
+
+%union {
+	int		value;
+	char		*str;
+	symbol_t	*sym;
+}
+
+
+%token <str> T_ARG
+
+%token <sym> T_SYMBOL
+
+%type <value> macro_arglist
+
+%%
+
+macrocall:
+	T_SYMBOL '('
+	{
+		macro_symbol = $1;
+	}
+	macro_arglist ')'
+	{
+		if (macro_symbol->info.macroinfo->narg != $4) {
+			printf("Narg == %d", macro_symbol->info.macroinfo->narg);
+			stop("Too few arguments for macro invocation",
+			     EX_DATAERR);
+			/* NOTREACHED */
+		}
+		macro_symbol = NULL;
+		YYACCEPT;
+	}
+;
+
+macro_arglist:
+	{
+		/* Macros can take 0 arguments */
+		$$ = 0;
+	}
+|	T_ARG
+	{
+		$$ = 1;
+		add_macro_arg($1, 1);
+	}
+|	macro_arglist ',' T_ARG
+	{
+		if ($1 == 0) {
+			stop("Comma without preceeding argument in arg list",
+			     EX_DATAERR);
+			/* NOTREACHED */
+		}
+		$$ = $1 + 1;
+		add_macro_arg($3, $$);
+	}
+;
+
+%%
+
+static void
+add_macro_arg(const char *argtext, int argnum)
+{
+	struct macro_arg *marg;
+	int i;
+
+	if (macro_symbol == NULL || macro_symbol->type != MACRO) {
+		stop("Invalid current symbol for adding macro arg",
+		     EX_SOFTWARE);
+		/* NOTREACHED */
+	}
+	/*
+	 * Macro Invocation.  Find the appropriate argument and fill
+	 * in the replace ment text for this call.
+	 */
+	i = 0;
+	STAILQ_FOREACH(marg, &macro_symbol->info.macroinfo->args, links) {
+		i++;
+		if (i == argnum)
+			break;
+	}
+	if (marg == NULL) {
+		stop("Too many arguments for macro invocation", EX_DATAERR);
+		/* NOTREACHED */
+	}
+	marg->replacement_text = strdup(argtext);
+	if (marg->replacement_text == NULL) {
+		stop("Unable to replicate replacement text", EX_SOFTWARE);
+		/* NOTREACHED */
+	}
+}
+
+void
+mmerror(const char *string)
+{
+	stop(string, EX_DATAERR);
+}