X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Ffailtest%2Ffailtest.c;h=0f2ab0c7f2cda15464d0ee7dc81b16d34e25b602;hp=3f64bc91b512e35cb05a812979118ee06b9b1280;hb=94b797a5d4fb35f85a314e11c9ded9f18b941d00;hpb=b7dedf4344c7e573c048a36e7b456f2a4bdbebb7

diff --git a/ccan/failtest/failtest.c b/ccan/failtest/failtest.c
index 3f64bc91..0f2ab0c7 100644
--- a/ccan/failtest/failtest.c
+++ b/ccan/failtest/failtest.c
@@ -84,8 +84,9 @@ static struct failtest_call *add_history_(enum failtest_call_type type,
 #define add_history(type, file, line, elem) \
 	add_history_((type), (file), (line), (elem), sizeof(*(elem)))
 
+/* We do a fake call inside a sizeof(), to check types. */
 #define set_cleanup(call, clean, type)			\
-	(call)->cleanup = (void *)((void)sizeof(clean((type *)NULL)), (clean))
+	(call)->cleanup = (void *)((void)sizeof(clean((type *)NULL),1), (clean))
 
 static bool read_write_info(int fd)
 {
@@ -330,8 +331,9 @@ static NORETURN void failtest_cleanup(bool forced_cleanup, int status)
 		if (!history[i].cleanup)
 			continue;
 		if (!forced_cleanup) {
-			printf("Leak at %s:%u\n",
-			       history[i].file, history[i].line);
+			printf("Leak at %s:%u: --failpath=%s\n",
+			       history[i].file, history[i].line,
+			       failpath_string());
 			status = 1;
 		}
 		history[i].cleanup(&history[i].u);