prog: generate missing syscall args when decoding

After a change in syscall description the number of syscall arguments
might change and some of the programs in corpus get invalidated.

This change makes syzkaller to generate missing arguments when decoding a
program as an attempt to fix and keep more programs from corpus.

1 files changed, 9 insertions, 0 deletions

diff --git a/prog/prog_test.go b/prog/prog_test.go
index 707c7133a..2d05058ea 100644
--- a/prog/prog_test.go
+++ b/prog/prog_test.go
@@ -35,6 +35,15 @@ func TestGeneration(t *testing.T) {
 	}
 }
 
+func TestDefault(t *testing.T) {
+	initTest(t)
+	for _, meta := range sys.CallMap {
+		for _, t := range meta.Args {
+			defaultArg(t)
+		}
+	}
+}
+
 func TestSerialize(t *testing.T) {
 	rs, iters := initTest(t)
 	for i := 0; i < iters; i++ {