From d665dfeb8c64ab88cb98bc2de95fa5460a51e5bf Mon Sep 17 00:00:00 2001
From: rodrigc <rodrigc@FreeBSD.org>
Date: Thu, 4 Jan 2007 04:18:03 +0000
Subject: Add auto_if_type() function, which is similar to auto_switch_type().
 However, auto_if_type() uses if/else statements in C instead of a single
 switch statement, when mapping an integer value to a #define.  For certain
 cases where multiple #define constants alias to a single integer value,
 auto_if_type() makes things easier to parse than auto_switch_type().

---
 usr.bin/kdump/mksubr | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'usr.bin/kdump/mksubr')

diff --git a/usr.bin/kdump/mksubr b/usr.bin/kdump/mksubr
index 1e9825a..8cf4f94 100644
--- a/usr.bin/kdump/mksubr
+++ b/usr.bin/kdump/mksubr
@@ -96,6 +96,36 @@ cat <<_EOF_
 _EOF_
 }
 
+#
+# Automatically generates a C function used when the argument
+# maps to a #definition
+#
+auto_if_type () {
+	local name grep file
+	name=$1
+	grep=$2
+	file=$3
+
+	cat <<_EOF_
+/* AUTO */
+void
+$name (int arg)
+{
+_EOF_
+	egrep "^#[[:space:]]*define[[:space:]]+"${grep}"[[:space:]]*" \
+		$include_dir/$file | \
+	awk '{ printf "\t"; \
+		if (NR > 1) \
+			printf "else " ; \
+		printf "if (arg == %s) \n\t\tprintf(\"%s\");\n", $2, $2 }'
+cat <<_EOF_
+	else /* Should not reach */
+		(void)printf("<invalid=%ld>", (long)arg);
+}
+
+_EOF_
+}
+
 # C start
 
 cat <<_EOF_
-- 
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