Prevent inlining for more functions.

Clang is inlining quite aggressively.

src/ldpreload.h

@@ -30,6 +30,12 @@
 #include <dlfcn.h>
 #include <errno.h>
 
+static void *dlsym_function(char const *name)
+#ifdef HAVE___ATTRIBUTE__
+                                              __attribute__((noinline))
+#endif
+;
+
 /* Load the function name using dlsym() and return it. Terminate program on
  * failure. Split in function and macro to reduce code inserted into the
  * function using the macro. */

src/trackfds.h

@@ -300,7 +300,7 @@ static int tracked_fds_remove(int fd) {
     return 0;
 }
 
-static int tracked_fds_find_slow(int fd);
+static int tracked_fds_find_slow(int fd) __noinline;
 /*
  * tracked_fds_find() is called for each hook call and should be as fast as
  * possible. As most file descriptors are < TRACKFDS_STATIC_COUNT, force the