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 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 [...]
