From: "Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH 3/3] libtracefs: Unit tests for uprobes APIs
Date: Mon, 28 Mar 2022 12:03:47 +0300 [thread overview]
Message-ID: <20220328090347.107849-4-tz.stoyanov@gmail.com> (raw)
In-Reply-To: <20220328090347.107849-1-tz.stoyanov@gmail.com>
The newly introduced uprobes APIs should be covered by the library unit
tests.
Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
---
utest/tracefs-utest.c | 74 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 74 insertions(+)
diff --git a/utest/tracefs-utest.c b/utest/tracefs-utest.c
index 7042fa9..3f63837 100644
--- a/utest/tracefs-utest.c
+++ b/utest/tracefs-utest.c
@@ -873,6 +873,79 @@ static void test_eprobes(void)
test_eprobes_instance(test_instance);
}
+#define FOFFSET 1000ll
+static void test_uprobes_instance(struct tracefs_instance *instance)
+{
+ struct probe_test utests[] = {
+ { TRACEFS_DYNEVENT_UPROBE, "p", "utest", "utest_u", NULL, "arg1=$stack2" },
+ { TRACEFS_DYNEVENT_URETPROBE, "r", "utest", "utest_r", NULL, "arg1=$retval" },
+ };
+ int count = sizeof(utests) / sizeof((utests)[0]);
+ struct tracefs_dynevent **duprobes;
+ struct tracefs_dynevent **duvents;
+ char self[PATH_MAX] = { 0 };
+ struct tep_handle *tep;
+ char *target = NULL;
+ int i;
+
+ tep = tep_alloc();
+ CU_TEST(tep != NULL);
+
+ duprobes = calloc(count + 1, sizeof(*duvents));
+ CU_TEST(duprobes != NULL);
+ CU_TEST(readlink("/proc/self/exe", self, sizeof(self)) > 0);
+ CU_TEST(asprintf(&target, "%s:0x%0*llx", self, (int)(sizeof(void *) * 2), FOFFSET) > 0);
+
+ for (i = 0; i < count; i++)
+ utests[i].address = target;
+
+ /* Invalid parameters */
+ CU_TEST(tracefs_uprobe_alloc(NULL, NULL, self, 0, NULL) == NULL);
+ CU_TEST(tracefs_uprobe_alloc(NULL, "test", NULL, 0, NULL) == NULL);
+ CU_TEST(tracefs_uretprobe_alloc(NULL, NULL, self, 0, NULL) == NULL);
+ CU_TEST(tracefs_uretprobe_alloc(NULL, "test", NULL, 0, NULL) == NULL);
+
+ for (i = 0; i < count; i++) {
+ if (utests[i].type == TRACEFS_DYNEVENT_UPROBE)
+ duprobes[i] = tracefs_uprobe_alloc(utests[i].system, utests[i].event,
+ self, FOFFSET, utests[i].format);
+ else
+ duprobes[i] = tracefs_uretprobe_alloc(utests[i].system, utests[i].event,
+ self, FOFFSET, utests[i].format);
+ CU_TEST(duprobes[i] != NULL);
+ }
+ duprobes[i] = NULL;
+
+ get_dynevents_check(TRACEFS_DYNEVENT_UPROBE | TRACEFS_DYNEVENT_URETPROBE, 0);
+ CU_TEST(check_probes(utests, count, duprobes, false, instance, tep));
+
+ for (i = 0; i < count; i++) {
+ CU_TEST(tracefs_dynevent_create(duprobes[i]) == 0);
+ }
+
+ duvents = get_dynevents_check(TRACEFS_DYNEVENT_UPROBE | TRACEFS_DYNEVENT_URETPROBE, count);
+ CU_TEST(check_probes(utests, count, duvents, true, instance, tep));
+ tracefs_dynevent_list_free(duvents);
+
+ for (i = 0; i < count; i++) {
+ CU_TEST(tracefs_dynevent_destroy(duprobes[i], false) == 0);
+ }
+ get_dynevents_check(TRACEFS_DYNEVENT_UPROBE | TRACEFS_DYNEVENT_URETPROBE, 0);
+ CU_TEST(check_probes(utests, count, duprobes, false, instance, tep));
+
+ for (i = 0; i < count; i++)
+ tracefs_dynevent_free(duprobes[i]);
+
+ free(duprobes);
+ free(target);
+ tep_free(tep);
+}
+
+static void test_uprobes(void)
+{
+ test_uprobes_instance(test_instance);
+}
+
static void test_instance_file(void)
{
struct tracefs_instance *instance = NULL;
@@ -1708,4 +1781,5 @@ void test_tracefs_lib(void)
CU_add_test(suite, "kprobes", test_kprobes);
CU_add_test(suite, "synthetic events", test_synthetic);
CU_add_test(suite, "eprobes", test_eprobes);
+ CU_add_test(suite, "uprobes", test_uprobes);
}
--
2.35.1
prev parent reply other threads:[~2022-03-28 9:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-28 9:03 [PATCH 0/3] libtracefs: Uprobe APIs Tzvetomir Stoyanov (VMware)
2022-03-28 9:03 ` [PATCH 1/3] libtracefs: New APIs for ftrace uprobes Tzvetomir Stoyanov (VMware)
2022-03-28 9:03 ` [PATCH 2/3] libtracefs: Document uprobes APIs Tzvetomir Stoyanov (VMware)
2022-04-04 17:51 ` Steven Rostedt
2022-03-28 9:03 ` Tzvetomir Stoyanov (VMware) [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220328090347.107849-4-tz.stoyanov@gmail.com \
--to=tz.stoyanov@gmail.com \
--cc=linux-trace-devel@vger.kernel.org \
--cc=rostedt@goodmis.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).