testsuite: explain why overriding function may fail

[thirdparty/kmod.git] / testsuite / init_module.c

diff --git a/testsuite/init_module.c b/testsuite/init_module.c
index b7d220b725fbc76fa4dea78128d1f450c89852bb..199186b8d48091467ec14bb63f66c4564ca64e78 100644 (file)
--- a/testsuite/init_module.c
+++ b/testsuite/init_module.c
@@ -356,9 +356,14 @@ TS_EXPORT long int syscall(long int __sysno, ...)
        }
 
        /*
-        * FIXME: no way to call the libc function - let's hope there are no
-        * other users.
+        * FIXME: no way to call the libc function due since this is a
+        * variadic argument function and we don't have a vsyscall() variant
+        * this may fail if a library or process is trying to call syscall()
+        * directly, for example to implement gettid().
         */
+       fprintf(stderr, "FIXME FIXME FIXME: could not wrap call to syscall(%ld), this should not happen\n",
+               __sysno);
+
        abort();
 }