Hi, This series implements poke, trampoline, kfunc, mixing subprogs and tailcalls, and fixes a number of tests on s390x. The following failures still remain: #52 core_read_macros:FAIL Uses BPF_PROBE_READ(), shouldn't there be BPF_PROBE_READ_KERNEL()? #82 get_stack_raw_tp:FAIL get_stack_print_output:FAIL:user_stack corrupted user stack Known issue: We cannot reliably unwind userspace on s390x without DWARF. #101 ksyms_module:FAIL address of kernel function bpf_testmod_test_mod_kfunc is out of range Known issue: Kernel and modules are too far away from each other on s390x. #167 sk_assign:FAIL Uses legacy map definitions in 'maps' section. #190 stacktrace_build_id:FAIL Known issue: We cannot reliably unwind userspace on s390x without DWARF. #211 test_bpffs:FAIL iterators.bpf.c is broken on s390x, it uses BPF_CORE_READ(), shouldn't there be BPF_CORE_READ_KERNEL()? #218 test_profiler:FAIL A lot of BPF_PROBE_READ() usages. #281 xdp_metadata:FAIL See patch 24. #284 xdp_synproxy:FAIL Verifier error: ; value = bpf_tcp_raw_gen_syncookie_ipv4(hdr->ipv4, hdr->tcp, 281: (79) r1 = *(u64 *)(r10 -80) ; R1_w=pkt(off=14,r=74,imm=0) R10=fp0 282: (bf) r2 = r8 ; R2_w=pkt(id=5,off=14,r=74,umax=60,var_off=(0x0; 0x3c)) R8=pkt(id=5,off=14,r=74,umax=60,var_off=(0x0; 0x3c)) 283: (79) r3 = *(u64 *)(r10 -104) ; R3_w=scalar(umax=60,var_off=(0x0; 0x3c)) R10=fp0 284: (85) call bpf_tcp_raw_gen_syncookie_ipv4#204 invalid access to packet, off=14 size=0, R2(id=5,off=14,r=74) R2 offset is outside of the packet None of these seem to be due to the new changes. Best regards, Ilya Ilya Leoshkevich (24): selftests/bpf: Fix liburandom_read.so linker error selftests/bpf: Fix symlink creation error selftests/bpf: Fix fexit_stress on s390x selftests/bpf: Fix trampoline_count on s390x selftests/bpf: Fix kfree_skb on s390x selftests/bpf: Set errno when urand_spawn() fails selftests/bpf: Fix decap_sanity_ns cleanup selftests/bpf: Fix verify_pkcs7_sig on s390x selftests/bpf: Fix xdp_do_redirect on s390x selftests/bpf: Fix cgrp_local_storage on s390x selftests/bpf: Check stack_mprotect() return value selftests/bpf: Increase SIZEOF_BPF_LOCAL_STORAGE_ELEM on s390x selftests/bpf: Add a sign-extension test for kfuncs selftests/bpf: Fix test_lsm on s390x selftests/bpf: Fix test_xdp_adjust_tail_grow2 on s390x selftests/bpf: Fix vmlinux test on s390x libbpf: Read usdt arg spec with bpf_probe_read_kernel() s390/bpf: Fix a typo in a comment s390/bpf: Add expoline to tail calls s390/bpf: Implement bpf_arch_text_poke() bpf: btf: Add BTF_FMODEL_SIGNED_ARG flag s390/bpf: Implement arch_prepare_bpf_trampoline() s390/bpf: Implement bpf_jit_supports_subprog_tailcalls() s390/bpf: Implement bpf_jit_supports_kfunc_call() arch/s390/net/bpf_jit_comp.c | 708 +++++++++++++++++- include/linux/bpf.h | 8 + include/linux/btf.h | 15 +- kernel/bpf/btf.c | 16 +- net/bpf/test_run.c | 9 + tools/lib/bpf/usdt.bpf.h | 33 +- tools/testing/selftests/bpf/Makefile | 7 +- tools/testing/selftests/bpf/netcnt_common.h | 6 +- .../selftests/bpf/prog_tests/bpf_cookie.c | 6 +- .../bpf/prog_tests/cgrp_local_storage.c | 2 +- .../selftests/bpf/prog_tests/decap_sanity.c | 2 +- .../selftests/bpf/prog_tests/fexit_stress.c | 6 +- .../selftests/bpf/prog_tests/kfree_skb.c | 2 +- .../selftests/bpf/prog_tests/kfunc_call.c | 1 + .../selftests/bpf/prog_tests/test_lsm.c | 3 +- .../bpf/prog_tests/trampoline_count.c | 4 + tools/testing/selftests/bpf/prog_tests/usdt.c | 1 + .../bpf/prog_tests/verify_pkcs7_sig.c | 9 + .../bpf/prog_tests/xdp_adjust_tail.c | 7 +- .../bpf/prog_tests/xdp_do_redirect.c | 4 + .../selftests/bpf/progs/kfunc_call_test.c | 18 + tools/testing/selftests/bpf/progs/lsm.c | 7 +- .../bpf/progs/test_verify_pkcs7_sig.c | 12 +- .../selftests/bpf/progs/test_vmlinux.c | 4 +- .../bpf/progs/test_xdp_adjust_tail_grow.c | 8 +- 25 files changed, 816 insertions(+), 82 deletions(-) -- 2.39.1
