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Diffstat (limited to 'drivers/scsi/aic7xxx/aicasm/aicasm_macro_gram.y')
-rw-r--r--drivers/scsi/aic7xxx/aicasm/aicasm_macro_gram.y164
1 files changed, 164 insertions, 0 deletions
diff --git a/drivers/scsi/aic7xxx/aicasm/aicasm_macro_gram.y b/drivers/scsi/aic7xxx/aicasm/aicasm_macro_gram.y
new file mode 100644
index 00000000000..439f760b34b
--- /dev/null
+++ b/drivers/scsi/aic7xxx/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);
+}