Remove register keyword from sys/ and ANSIfy prototypes

A long long time ago the register keyword told the compiler to store
the corresponding variable in a CPU register, but it is not relevant
for any compiler used in the FreeBSD world today.

ANSIfy related prototypes while here.

Reviewed by:	cem, jhb
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D10193

3 files changed, 10 insertions, 11 deletions

diff --git a/sys/ddb/db_access.c b/sys/ddb/db_access.c
index 7001e7264a12..ec2107352f1d 100644
--- a/sys/ddb/db_access.c
+++ b/sys/ddb/db_access.c
@@ -57,8 +57,8 @@ db_expr_t
 db_get_value(db_addr_t addr, int size, bool is_signed)
 {
 	char		data[sizeof(u_int64_t)];
-	register db_expr_t value;
-	register int	i;
+	db_expr_t	value;
+	int		i;
 
 	if (db_read_bytes(addr, size, data) != 0) {
 		db_printf("*** error reading from address %llx ***\n",
@@ -87,7 +87,7 @@ void
 db_put_value(db_addr_t addr, int size, db_expr_t value)
 {
 	char		data[sizeof(int)];
-	register int	i;
+	int		i;
 
 #if	BYTE_MSF
 	for (i = size - 1; i >= 0; i--)
diff --git a/sys/ddb/db_output.c b/sys/ddb/db_output.c
index 109c7a50e1d9..c0dc58bc599b 100644
--- a/sys/ddb/db_output.c
+++ b/sys/ddb/db_output.c
@@ -92,7 +92,7 @@ static void	db_pager(void);
 void
 db_force_whitespace(void)
 {
-	register int last_print, next_tab;
+	int last_print, next_tab;
 
 	last_print = db_last_non_space;
 	while (last_print < db_output_position) {
@@ -355,7 +355,7 @@ db_iprintf(const char *fmt,...)
 	char bufr[DDB_BUFR_SIZE];
 #endif
 	struct dbputchar_arg dca;
-	register int i;
+	int i;
 	va_list listp;
 
 	for (i = db_indent; i >= 8; i -= 8)
diff --git a/sys/ddb/db_sym.c b/sys/ddb/db_sym.c
index c21445c520ba..d3f9554aa90b 100644
--- a/sys/ddb/db_sym.c
+++ b/sys/ddb/db_sym.c
@@ -286,10 +286,10 @@ static c_db_sym_t
 db_lookup(const char *symstr)
 {
 	c_db_sym_t sp;
-	register int i;
+	int i;
 	int symtab_start = 0;
 	int symtab_end = db_nsymtab;
-	register const char *cp;
+	const char *cp;
 
 	/*
 	 * Look for, remove, and remember any symbol table specifier.
@@ -343,8 +343,8 @@ static bool
 db_symbol_is_ambiguous(c_db_sym_t sym)
 {
 	const char	*sym_name;
-	register int	i;
-	register bool	found_once = false;
+	int		i;
+	bool		found_once = false;
 
 	if (!db_qualify_ambiguous_names)
 		return (false);
@@ -367,10 +367,9 @@ db_symbol_is_ambiguous(c_db_sym_t sym)
 c_db_sym_t
 db_search_symbol(db_addr_t val, db_strategy_t strategy, db_expr_t *offp)
 {
-	register
 	unsigned int	diff;
 	size_t		newdiff;
-	register int	i;
+	int		i;
 	c_db_sym_t	ret = C_DB_SYM_NULL, sym;
 
 	newdiff = diff = val;