scc

commit 7d178752ef2032277b760b3b7d70956698938a18
parent 9e267438dbc681f048234dc5e34317877bdf17c3
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Sat,  9 Sep 2017 07:33:20 +0200

[as] Allow instructions without arguments

In that case the argument string is NULL and as was segfaulting.

Diffstat:
M
as/main.c
 | 
2
+-
M
as/target/x86/gen.awk
 | 
2
+-

2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/as/main.c b/as/main.c
@@ -63,7 +63,7 @@ getargs(char *s)
 	Arg *ap;
 	static Arg args[NARGS];
 
-	for (ap = args; ; ++ap) {
+	for (ap = args; s; ++ap) {
 		while (isspace(*s))
 			++s;
 		if (*s == '\0')
diff --git a/as/target/x86/gen.awk b/as/target/x86/gen.awk
@@ -72,7 +72,7 @@ function str2args(s, args, i, out)
 		a = substr(a, RLENGTH+1)
 		if (a ~ /^\+$/) {
 			return out "|AREP"
-		} else {
+		} else if (a != "") {
 			print "wrong arg", a
 			exit 1
 		}