pid: ignore compiler-generated internal function names

Signed-off-by: Kris Van Hees <kris.van.hees@oracle.com>
Reviewed-by: Eugene Loh <eugene.loh@oracle.com>

libdtrace/dt_pid.c

@@ -277,12 +277,14 @@ dt_pid_sym_filt(void *arg, const GElf_Sym *symp, const char *func)
 		if (strcmp(func, "_init") == 0 || strcmp(func, "_fini") == 0)
 			return 0;
 
-		/*
-		 * Versioned identifiers are a problem.
-		 */
+		/* Versioned identifiers are a problem. */
 		if (strchr(func, '@') != NULL)
 			return 0;
 
+		/* Compiler-generated internal identifiers are a problem. */
+		if (strchr(func, '.') != NULL)
+			return 0;
+
 		if ((pp->dpp_last_taken = gmatch(func, pp->dpp_func)) != 0) {
 			pp->dpp_last = *symp;
 			return dt_pid_per_sym(pp, symp, func);