[Sanitizer] Disable arc4random seeding apis on for Non NetBSD platforms.

- arc4random_stir / arc4random_addrandom had been made obsolete (and removed) from FreeBSD 12.

Reviewers: krytarowski

Reviewed By: krytarowski

Differential Revision: https://reviews.llvm.org/D56210

llvm-svn: 350249

1 files changed, 6 insertions, 0 deletions

diff --git a/compiler-rt/test/sanitizer_common/TestCases/Posix/arc4random.cc b/compiler-rt/test/sanitizer_common/TestCases/Posix/arc4random.cc
index a34930973e6..0a983b58f59 100644
--- a/compiler-rt/test/sanitizer_common/TestCases/Posix/arc4random.cc
+++ b/compiler-rt/test/sanitizer_common/TestCases/Posix/arc4random.cc
@@ -15,8 +15,10 @@ void print_buf(unsigned char *buf, size_t buflen) {
 }
 
 void test_seed() {
+#ifdef __NetBSD__
   time_t now = ::time(nullptr);
   arc4random_addrandom((unsigned char *)&now, sizeof(now));
+#endif
 }
 
 void test_arc4random() {
@@ -34,7 +36,9 @@ void test_arc4random_uniform() {
 void test_arc4random_buf10() {
   printf("test_arc4random_buf10\n");
   char buf[10];
+#ifdef __NetBSD__
   arc4random_stir();
+#endif
   arc4random_buf(buf, sizeof(buf));
   print_buf((unsigned char *)buf, sizeof(buf));
 }
@@ -42,7 +46,9 @@ void test_arc4random_buf10() {
 void test_arc4random_buf256() {
   printf("test_arc4random_buf256\n");
   char buf[256];
+#ifdef __NetBSD__
   arc4random_stir();
+#endif
   arc4random_buf(buf, sizeof(buf));
   print_buf((unsigned char *)buf, sizeof(buf));
 }