On 8/29/22 3:12 PM, Daniel Borkmann wrote:
On 8/28/22 4:55 AM, Yonghong Song wrote:
Add various struct argument tests with fentry/fexit programs.
Also add one test with a kernel func which does not have any
argument to test BPF_PROG2 macro in such situation.
Signed-off-by: Yonghong Song <yhs@xxxxxx>
---
.../selftests/bpf/bpf_testmod/bpf_testmod.c | 48 ++++++++
.../selftests/bpf/prog_tests/tracing_struct.c | 63 ++++++++++
.../selftests/bpf/progs/tracing_struct.c | 114 ++++++++++++++++++
3 files changed, 225 insertions(+)
create mode 100644
tools/testing/selftests/bpf/prog_tests/tracing_struct.c
create mode 100644 tools/testing/selftests/bpf/progs/tracing_struct.c
For s390x these tests need to be deny-listed due to missing trampoline
support..
All error logs:
test_fentry:PASS:tracing_struct__open_and_load 0 nsec
libbpf: prog 'test_struct_arg_1': failed to attach: ERROR:
strerror_r(-524)=22
libbpf: prog 'test_struct_arg_1': failed to auto-attach: -524
test_fentry:FAIL:tracing_struct__attach unexpected error: -524 (errno
524)
#209 tracing_struct:FAIL
Summary: 189/972 PASSED, 27 SKIPPED, 1 FAILED
Thanks. will add the test to deny list.
However, looks like the no_alu32 ones on x86 fail:
[...]
#207 trace_printk:OK
#208 trace_vprintk:OK
test_fentry:PASS:tracing_struct__open_and_load 0 nsec
test_fentry:PASS:tracing_struct__attach 0 nsec
trigger_module_test_read:PASS:testmod_file_open 0 nsec
test_fentry:PASS:trigger_read 0 nsec
test_fentry:PASS:t1:a.a 0 nsec
test_fentry:PASS:t1:a.b 0 nsec
test_fentry:PASS:t1:b 0 nsec
test_fentry:PASS:t1:c 0 nsec
test_fentry:PASS:t1 nregs 0 nsec
test_fentry:PASS:t1 reg0 0 nsec
test_fentry:PASS:t1 reg1 0 nsec
test_fentry:FAIL:t1 reg2 unexpected t1 reg2: actual
7327499336969879553 != expected 1
test_fentry:PASS:t1 reg3 0 nsec
test_fentry:PASS:t1 ret 0 nsec
test_fentry:PASS:t2:a 0 nsec
test_fentry:PASS:t2:b.a 0 nsec
test_fentry:PASS:t2:b.b 0 nsec
test_fentry:PASS:t2:c 0 nsec
test_fentry:PASS:t2 ret 0 nsec
test_fentry:PASS:t3:a 0 nsec
test_fentry:PASS:t3:b 0 nsec
test_fentry:PASS:t3:c.a 0 nsec
test_fentry:PASS:t3:c.b 0 nsec
test_fentry:PASS:t3 ret 0 nsec
test_fentry:PASS:t4:a.a 0 nsec
test_fentry:PASS:t4:b 0 nsec
test_fentry:PASS:t4:c 0 nsec
test_fentry:PASS:t4:d 0 nsec
test_fentry:PASS:t4:e.a 0 nsec
test_fentry:PASS:t4:e.b 0 nsec
test_fentry:PASS:t4 ret 0 nsec
test_fentry:PASS:t5 ret 0 nsec
#209 tracing_struct:FAIL
#210 trampoline_count:OK
[...]
Thanks for the headsup. Will check.
