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authormartin <martin@NetBSD.org>2014-01-11 19:13:41 +0000
committermartin <martin@NetBSD.org>2014-01-11 19:13:41 +0000
commit804dfcea552c359efc1a67268b5fd4c5d573b1bf (patch)
tree20053ebc2cd015196fb47dd55d612c0ac266edf2 /tests/lib/libexecinfo
parentd5fd0a9606fdcc8fce550afa155b9a35ba03f284 (diff)
Make the output of the test case better suited for debugging (output full
backtrace before failing any unclear asserts)
Diffstat (limited to 'tests/lib/libexecinfo')
-rw-r--r--tests/lib/libexecinfo/t_backtrace.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/tests/lib/libexecinfo/t_backtrace.c b/tests/lib/libexecinfo/t_backtrace.c
index 3710de3ea42..dd26780bdb8 100644
--- a/tests/lib/libexecinfo/t_backtrace.c
+++ b/tests/lib/libexecinfo/t_backtrace.c
@@ -1,4 +1,4 @@
-/* $NetBSD: t_backtrace.c,v 1.10 2013/08/16 11:57:15 martin Exp $ */
+/* $NetBSD: t_backtrace.c,v 1.11 2014/01/11 19:13:41 martin Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
@@ -29,11 +29,12 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
-__RCSID("$NetBSD: t_backtrace.c,v 1.10 2013/08/16 11:57:15 martin Exp $");
+__RCSID("$NetBSD: t_backtrace.c,v 1.11 2014/01/11 19:13:41 martin Exp $");
#include <atf-c.h>
#include <atf-c/config.h>
#include <string.h>
+#include <stdio.h>
#include <stdlib.h>
#include <execinfo.h>
#include <unistd.h>
@@ -69,12 +70,19 @@ myfunc3(size_t ncalls)
++max_frames;
}
nptrs = backtrace(buffer, __arraycount(buffer));
- ATF_REQUIRE(nptrs >= ncalls + 2 + min_frames);
- ATF_REQUIRE(nptrs <= ncalls + 2 + max_frames);
-
strings = backtrace_symbols_fmt(buffer, nptrs, "%n");
ATF_CHECK(strings != NULL);
+
+ printf("got nptrs=%zu ncalls=%zu (min_frames: %zu, max_frames: %zu)\n",
+ nptrs, ncalls, min_frames, max_frames);
+ printf("backtrace is:\n");
+ for (j = 0; j < nptrs; j++) {
+ printf("#%zu: %s\n", j, strings[j]);
+ }
+
+ ATF_REQUIRE(nptrs >= ncalls + 2 + min_frames);
+ ATF_REQUIRE(nptrs <= ncalls + 2 + max_frames);
ATF_CHECK_STREQ(strings[0], "myfunc3");
ATF_CHECK_STREQ(strings[1], "myfunc2");