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selftests/bpf: Add lskel version of kfunc test.

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Add light skeleton version of kfunc_call_test_subprog test.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211201181040.23337-13-alexei.starovoitov@gmail.com
This commit is contained in:
Alexei Starovoitov 2021-12-01 10:10:35 -08:00 committed by Andrii Nakryiko
parent 19250f5fc0
commit bc5f75da97
2 changed files with 25 additions and 1 deletions
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2
tools/testing/selftests/bpf/Makefile
View File

@ -327,7 +327,7 @@ LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \
LSKELS := kfunc_call_test.c fentry_test.c fexit_test.c fexit_sleep.c \
test_ringbuf.c atomics.c trace_printk.c trace_vprintk.c
# Generate both light skeleton and libbpf skeleton for these
LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c
LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test_subprog.c
SKEL_BLACKLIST += $$(LSKELS)
test_static_linked.skel.h-deps := test_static_linked1.o test_static_linked2.o

24
tools/testing/selftests/bpf/prog_tests/kfunc_call.c
View File

@ -4,6 +4,7 @@
#include <network_helpers.h>
#include "kfunc_call_test.lskel.h"
#include "kfunc_call_test_subprog.skel.h"
#include "kfunc_call_test_subprog.lskel.h"
static void test_main(void)
{
@ -49,6 +50,26 @@ static void test_subprog(void)
kfunc_call_test_subprog__destroy(skel);
}
static void test_subprog_lskel(void)
{
struct kfunc_call_test_subprog_lskel *skel;
int prog_fd, retval, err;
skel = kfunc_call_test_subprog_lskel__open_and_load();
if (!ASSERT_OK_PTR(skel, "skel"))
return;
prog_fd = skel->progs.kfunc_call_test1.prog_fd;
err = bpf_prog_test_run(prog_fd, 1, &pkt_v4, sizeof(pkt_v4),
NULL, NULL, (__u32 *)&retval, NULL);
ASSERT_OK(err, "bpf_prog_test_run(test1)");
ASSERT_EQ(retval, 10, "test1-retval");
ASSERT_NEQ(skel->data->active_res, -1, "active_res");
ASSERT_EQ(skel->data->sk_state_res, BPF_TCP_CLOSE, "sk_state_res");
kfunc_call_test_subprog_lskel__destroy(skel);
}
void test_kfunc_call(void)
{
if (test__start_subtest("main"))
@ -56,4 +77,7 @@ void test_kfunc_call(void)
if (test__start_subtest("subprog"))
test_subprog();
if (test__start_subtest("subprog_lskel"))
test_subprog_lskel();
}