From: niklas <niklas@openbsd.org>
Date: Thu, 27 Mar 1997 11:50:45 +0000 (+0000)
Subject: Import genassym.sh method from NetBSD
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=63fae293253d7aed0a4013dc95f53fdd71497845;p=openbsd

Import genassym.sh method from NetBSD
---

diff --git a/sys/kern/genassym.sh b/sys/kern/genassym.sh
new file mode 100644
index 00000000000..9ab8967c81d
--- /dev/null
+++ b/sys/kern/genassym.sh
@@ -0,0 +1,129 @@
+#	$OpenBSD: genassym.sh,v 1.1 1997/03/27 11:50:45 niklas Exp $
+#	$NetBSD: genassym.sh,v 1.6 1997/03/13 22:47:20 gwr Exp $
+
+#
+# Copyright (c) 1997 Matthias Pfaller.
+# 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.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by Matthias Pfaller.
+# 4. The name of the author may not be used to endorse or promote products
+#    derived from this software without specific prior written permission
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, 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 DAMAGE.
+#
+
+# If first argument is -c, create a temporary C file,
+# compile it and execute the result.
+
+awk=${AWK:-awk}
+
+if [ $1 = '-c' ] ; then
+	shift
+	ccode=1
+else
+	ccode=0
+fi
+
+trap "rm -f /tmp/$$.c /tmp/genassym.$$" 0 1 2 3 15
+
+$awk '
+BEGIN {
+	printf("#ifndef _KERNEL\n#define _KERNEL\n#endif\n");
+	printf("#define	offsetof(type, member) ((size_t)(&((type *)0)->member))\n");
+	defining = 0;
+}
+
+$0 ~ /^[ \t]*#.*/ || $0 ~ /^[ \t]*$/ {
+	# Just ignore comments and empty lines
+	next;
+}
+
+/^include[ \t]/ {
+	if (defining != 0) {
+		defining = 0;
+		printf("}\n");
+	}
+	printf("#%s\n", $0);
+	next;
+}
+
+$0 ~ /^if[ \t]/ ||
+$0 ~ /^ifdef[ \t]/ ||
+$0 ~ /^ifndef[ \t]/ ||
+$0 ~ /^else/ ||
+$0 ~ /^elif[ \t]/ ||
+$0 ~ /^endif/ {
+	printf("#%s\n", $0);
+	next;
+}
+
+/^define[ \t]/ {
+	if (defining == 0) {
+		defining = 1;
+		printf("void f" FNR "(void);\n");
+		printf("void f" FNR "() {\n");
+		if (ccode)
+			call[FNR] = "f" FNR;
+		defining = 1;
+	}
+	value = $0
+	gsub("^define[ \t]+[A-Za-z_][A-Za-z_0-9]*[ \t]+", "", value)
+	if (ccode)
+		printf("printf(\"#define " $2 " %%ld\\n\", (long)" value ");\n");
+	else
+		printf("__asm(\"XYZZY %s %%0\" : : \"n\" (%s));\n", $2, value);
+	next;
+}
+
+/^quote[ \t]/ {
+	gsub("^quote[ \t]+", "");
+	print;
+	next;
+}
+
+{
+	printf("syntax error in line %d\n", FNR) >"/dev/stderr";
+	exit(1);
+}
+
+END {
+	if (defining != 0) {
+		defining = 0;
+		printf("}\n");
+	}
+	if (ccode) {
+		printf("int main(int argc, char **argv) {");
+		for (i in call)
+			printf(call[i] "();");
+		printf("return(0); }\n");
+	}
+}
+' ccode=$ccode > /tmp/$$.c || exit 1
+
+if [ $ccode = 1 ] ; then
+	"$@" /tmp/$$.c -o /tmp/genassym.$$ && /tmp/genassym.$$
+else
+	# Kill all of the "#" and "$" modifiers; locore.s already
+	# prepends the correct "constant" modifier.
+	"$@" -S /tmp/$$.c -o -| sed -e 's/#//g' -e 's/\$//g' | \
+	    sed -n 's/.*XYZZY/#define/gp'
+fi