Adding tests for using cookies on tracing multi link.
Signed-off-by: Jiri Olsa <[email protected]>
---
.../selftests/bpf/prog_tests/tracing_multi.c | 23 +++++++++++++++++--
.../selftests/bpf/progs/tracing_multi_check.c | 15 +++++++++++-
2 files changed, 35 insertions(+), 3 deletions(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/tracing_multi.c
b/tools/testing/selftests/bpf/prog_tests/tracing_multi.c
index f6ff1668d88f..1bab4c3ea808 100644
--- a/tools/testing/selftests/bpf/prog_tests/tracing_multi.c
+++ b/tools/testing/selftests/bpf/prog_tests/tracing_multi.c
@@ -8,6 +8,19 @@
#include "tracing_multi_intersect.skel.h"
#include "trace_helpers.h"
+static __u64 bpf_fentry_test_cookies[] = {
+ 8, /* bpf_fentry_test1 */
+ 9, /* bpf_fentry_test2 */
+ 7, /* bpf_fentry_test3 */
+ 5, /* bpf_fentry_test4 */
+ 4, /* bpf_fentry_test5 */
+ 2, /* bpf_fentry_test6 */
+ 3, /* bpf_fentry_test7 */
+ 1, /* bpf_fentry_test8 */
+ 10, /* bpf_fentry_test9 */
+ 6, /* bpf_fentry_test10 */
+};
+
static const char * const bpf_fentry_test[] = {
"bpf_fentry_test1",
"bpf_fentry_test2",
@@ -176,7 +189,7 @@ static void test_link_api_pattern(void)
tracing_multi__destroy(skel);
}
-static void test_link_api_ids(void)
+static void test_link_api_ids(bool test_cookies)
{
LIBBPF_OPTS(bpf_tracing_multi_opts, opts);
struct tracing_multi *skel = NULL;
@@ -188,6 +201,7 @@ static void test_link_api_ids(void)
return;
skel->bss->pid = getpid();
+ skel->bss->test_cookies = test_cookies;
ids = get_ids(bpf_fentry_test, cnt);
if (!ASSERT_OK_PTR(ids, "get_ids"))
@@ -196,6 +210,9 @@ static void test_link_api_ids(void)
opts.ids = ids;
opts.cnt = cnt;
+ if (test_cookies)
+ opts.cookies = bpf_fentry_test_cookies;
+
skel->links.test_fentry =
bpf_program__attach_tracing_multi(skel->progs.test_fentry,
NULL, &opts);
if (!ASSERT_OK_PTR(skel->links.test_fentry,
"bpf_program__attach_tracing_multi"))
@@ -306,7 +323,9 @@ void test_tracing_multi_test(void)
if (test__start_subtest("link_api_pattern"))
test_link_api_pattern();
if (test__start_subtest("link_api_ids"))
- test_link_api_ids();
+ test_link_api_ids(false);
if (test__start_subtest("intersect"))
test_intersect();
+ if (test__start_subtest("cookies"))
+ test_link_api_ids(true);
}
diff --git a/tools/testing/selftests/bpf/progs/tracing_multi_check.c
b/tools/testing/selftests/bpf/progs/tracing_multi_check.c
index fe7d1708cda5..c800e537b6b5 100644
--- a/tools/testing/selftests/bpf/progs/tracing_multi_check.c
+++ b/tools/testing/selftests/bpf/progs/tracing_multi_check.c
@@ -7,6 +7,7 @@
char _license[] SEC("license") = "GPL";
int pid = 0;
+bool test_cookies = false;
extern const void bpf_fentry_test1 __ksym;
extern const void bpf_fentry_test2 __ksym;
@@ -22,7 +23,7 @@ extern const void bpf_fentry_test10 __ksym;
int tracing_multi_arg_check(__u64 *ctx, __u64 *test_result, bool is_return)
{
void *ip = (void *) bpf_get_func_ip(ctx);
- __u64 value = 0, ret = 0;
+ __u64 value = 0, ret = 0, cookie = 0;
long err = 0;
if (bpf_get_current_pid_tgid() >> 32 != pid)
@@ -30,6 +31,8 @@ int tracing_multi_arg_check(__u64 *ctx, __u64 *test_result,
bool is_return)
if (is_return)
err |= bpf_get_func_ret(ctx, &ret);
+ if (test_cookies)
+ cookie = test_cookies ? bpf_get_attach_cookie(ctx) : 0;
if (ip == &bpf_fentry_test1) {
int a;
@@ -38,6 +41,7 @@ int tracing_multi_arg_check(__u64 *ctx, __u64 *test_result,
bool is_return)
a = (int) value;
err |= is_return ? ret != 2 : 0;
+ err |= test_cookies ? cookie != 8 : 0;
*test_result += err == 0 && a == 1;
} else if (ip == &bpf_fentry_test2) {
@@ -50,6 +54,7 @@ int tracing_multi_arg_check(__u64 *ctx, __u64 *test_result,
bool is_return)
b = value;
err |= is_return ? ret != 5 : 0;
+ err |= test_cookies ? cookie != 9 : 0;
*test_result += err == 0 && a == 2 && b == 3;
} else if (ip == &bpf_fentry_test3) {
@@ -65,6 +70,7 @@ int tracing_multi_arg_check(__u64 *ctx, __u64 *test_result,
bool is_return)
c = value;
err |= is_return ? ret != 15 : 0;
+ err |= test_cookies ? cookie != 7 : 0;
*test_result += err == 0 && a == 4 && b == 5 && c == 6;
} else if (ip == &bpf_fentry_test4) {
@@ -83,6 +89,7 @@ int tracing_multi_arg_check(__u64 *ctx, __u64 *test_result,
bool is_return)
d = value;
err |= is_return ? ret != 34 : 0;
+ err |= test_cookies ? cookie != 5 : 0;
*test_result += err == 0 && a == (void *) 7 && b == 8 && c == 9
&& d == 10;
} else if (ip == &bpf_fentry_test5) {
@@ -104,6 +111,7 @@ int tracing_multi_arg_check(__u64 *ctx, __u64 *test_result,
bool is_return)
e = value;
err |= is_return ? ret != 65 : 0;
+ err |= test_cookies ? cookie != 4 : 0;
*test_result += err == 0 && a == 11 && b == (void *) 12 && c ==
13 && d == 14 && e == 15;
} else if (ip == &bpf_fentry_test6) {
@@ -128,22 +136,27 @@ int tracing_multi_arg_check(__u64 *ctx, __u64
*test_result, bool is_return)
f = value;
err |= is_return ? ret != 111 : 0;
+ err |= test_cookies ? cookie != 2 : 0;
*test_result += err == 0 && a == 16 && b == (void *) 17 && c ==
18 && d == 19 && e == (void *) 20 && f == 21;
} else if (ip == &bpf_fentry_test7) {
err |= is_return ? ret != 0 : 0;
+ err |= test_cookies ? cookie != 3 : 0;
*test_result += err == 0 ? 1 : 0;
} else if (ip == &bpf_fentry_test8) {
err |= is_return ? ret != 0 : 0;
+ err |= test_cookies ? cookie != 1 : 0;
*test_result += err == 0 ? 1 : 0;
} else if (ip == &bpf_fentry_test9) {
err |= is_return ? ret != 0 : 0;
+ err |= test_cookies ? cookie != 10 : 0;
*test_result += err == 0 ? 1 : 0;
} else if (ip == &bpf_fentry_test10) {
err |= is_return ? ret != 0 : 0;
+ err |= test_cookies ? cookie != 6 : 0;
*test_result += err == 0 ? 1 : 0;
}
--
2.52.0
