correct description of how a string is stored, fix a few

typos and reference the kernel file which processes this info.

All in all, the content of this file should be moved to kldxref.c
or to the kld(4) manpage.

MFC after:	3 days

1 files changed, 10 insertions, 5 deletions

diff --git a/usr.sbin/kldxref/fileformat b/usr.sbin/kldxref/fileformat
index 2eddcca..81d115c 100644
--- a/usr.sbin/kldxref/fileformat
+++ b/usr.sbin/kldxref/fileformat
@@ -1,7 +1,9 @@
 $FreeBSD$
 
-    linker.hints file consists from the one or more records. First record of
-file is special and determines its version:
+linker.hints file consists from the one or more records,
+and is processed by sys/kern/kern_linker.c::linker_hints_lookup()
+
+First record of file is special and determines its version:
 
 int	version;
 
@@ -16,25 +18,28 @@ struct record {
 'data' determines its type:
 
 struct data {
-	int	type;		/* type of data. currently MTD_* values */
+	int	type;		/* type of data. currently MDT_* values */
 };
 
     The rest of record depends on the type.
 
 struct string {
-	int	length;		/* length of string */
+	uint8_t	length;		/* length of string */
 	char	val[];		/* string itself (no terminating zero) */
 };
 
 struct data_mdt_version {
 	int	type = MDT_VERSION;
 	struct string	modname;
+	/* padding */
 	int	version;
 	struct string	kldname;
+	/* padding */
 };
 
 struct data_mdt_module {
-	int	type = MDT_VERSION;
+	int	type = MDT_MODULE;
 	struct string	modname;
 	struct string	kldname;
+	/* padding */
 };