[compiler-rt] Fix name_to_handle_at.cc test on Overlay2 (for Docker)

amy-kwan · amy-kwan · commit 7eddb16fed94 · 2019-06-12T14:19:24.000Z
This patch aims to fix the test case, name_to_handle_at.cc that fails on Docker. Overlay2 on Docker does not support the current check for the name_to_handle_at() function call of the test case. The proposed fix is to check for /dev/null in the test instead, as this check is supported. Checking for /dev/null has been utilized in the past for other test cases, as well. Differential Revision: https://reviews.llvm.org/D63094 llvm-svn: 363167
diff --git a/compiler-rt/test/sanitizer_common/TestCases/Linux/name_to_handle_at.cc b/compiler-rt/test/sanitizer_common/TestCases/Linux/name_to_handle_at.cc
@@ -13,7 +13,7 @@ int main(int argc, char **argv) {
       malloc(sizeof(*handle) + MAX_HANDLE_SZ));
 
   handle->handle_bytes = MAX_HANDLE_SZ;
-  int res = name_to_handle_at(AT_FDCWD, argv[0], handle, &mount_id, 0);
+  int res = name_to_handle_at(AT_FDCWD, "/dev/null", handle, &mount_id, 0);
   assert(!res);
 
   free(handle);
