Hi David, hi Jakub, The following pull-request contains BPF updates for your *net-next* tree. We've added 29 non-merge commits during the last 8 day(s) which contain a total of 34 files changed, 1502 insertions(+), 524 deletions(-). The main changes are: 1) Add BTFGen support to bpftool which allows to use CO-RE in kernels without BTF info, from Mauricio Vásquez, Rafael David Tinoco, Lorenzo Fontana and Leonardo Di Donato. (Details: https://lpc.events/event/11/contributions/948/) 2) Prepare light skeleton to be used in both kernel module and user space and convert bpf_preload.ko to use light skeleton, from Alexei Starovoitov. 3) Rework bpftool's versioning scheme and align with libbpf's version number; also add linked libbpf version info to "bpftool version", from Quentin Monnet. 4) Add minimal C++ specific additions to bpftool's skeleton codegen to facilitate use of C skeletons in C++ applications, from Andrii Nakryiko. 5) Add BPF verifier sanity check whether relative offset on kfunc calls overflows desc->imm and reject the BPF program if the case, from Hou Tao. 6) Fix libbpf to use a dynamically allocated buffer for netlink messages to avoid receiving truncated messages on some archs, from Toke Høiland-Jørgensen. 7) Various follow-up fixes to the JIT bpf_prog_pack allocator, from Song Liu. 8) Various BPF selftest and vmtest.sh fixes, from Yucong Sun. 9) Fix bpftool pretty print handling on dumping map keys/values when no BTF is available, from Jiri Olsa and Yinjun Zhang. 10) Extend XDP frags selftest to check for invalid length, from Lorenzo Bianconi. Please consider pulling these changes from: git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git Thanks a lot! Also thanks to reporters, reviewers and testers of commits in this pull-request: Alexei Starovoitov, Andrii Nakryiko, Jiri Olsa, Kumar Kartikeya Dwivedi, Niklas Söderlund, Stephen Rothwell, Toke Høiland-Jørgensen, Yonghong Song, Zhiqian Guan ---------------------------------------------------------------- The following changes since commit 4f5e483b8c7a644733db941a1ae00173baa7b463: net: dsa: qca8k: fix noderef.cocci warnings (2022-02-10 10:56:00 -0800) are available in the Git repository at: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git for you to fetch changes up to d24d2a2b0a81dd5e9bb99aeb4559ec9734e1416f: bpf: bpf_prog_pack: Set proper size before freeing ro_header (2022-02-17 13:15:36 -0800) ---------------------------------------------------------------- Alexei Starovoitov (6): bpf: Extend sys_bpf commands for bpf_syscall programs. libbpf: Prepare light skeleton for the kernel. bpftool: Generalize light skeleton generation. bpf: Update iterators.lskel.h. bpf: Convert bpf_preload.ko to use light skeleton. Merge branch 'Make BPF skeleton easier to use from C++ code' Andrii Nakryiko (8): Merge branch 'bpftool: Switch to new versioning scheme (align on libbpf's)' libbpf: Fix libbpf.map inheritance chain for LIBBPF_0.7.0 selftests/bpf: Fix GCC11 compiler warnings in -O2 mode bpftool: Add C++-specific open/load/etc skeleton wrappers selftests/bpf: Add Skeleton templated wrapper as an example Merge branch 'libbpf: Implement BTFGen' bpftool: Fix C++ additions to skeleton libbpf: Fix memleak in libbpf_netlink_recv() Daniel Borkmann (1): Merge branch 'bpf-light-skel' Hou Tao (1): bpf: Reject kfunc calls that overflow insn->imm Jiri Olsa (1): bpftool: Fix pretty print dump for maps without BTF loaded Lorenzo Bianconi (1): selftest/bpf: Check invalid length in test_xdp_update_frags Mauricio Vásquez (6): libbpf: Split bpf_core_apply_relo() libbpf: Expose bpf_core_{add,free}_cands() to bpftool bpftool: Add gen min_core_btf command bpftool: Implement "gen min_core_btf" logic bpftool: Implement btfgen_get_btf() selftests/bpf: Test "bpftool gen min_core_btf" Quentin Monnet (2): bpftool: Add libbpf's version number to "bpftool version" output bpftool: Update versioning scheme, align on libbpf's version number Rafael David Tinoco (1): bpftool: Gen min_core_btf explanation and examples Song Liu (2): bpf: Fix bpf_prog_pack build for ppc64_defconfig bpf: bpf_prog_pack: Set proper size before freeing ro_header Toke Høiland-Jørgensen (1): libbpf: Use dynamically allocated buffer when receiving netlink messages Yinjun Zhang (1): bpftool: Fix the error when lookup in no-btf maps Yucong Sun (2): selftests/bpf: Fix vmtest.sh to launch smp vm. selftests/bpf: Fix crash in core_reloc when bpftool btfgen fails kernel/bpf/btf.c | 13 +- kernel/bpf/core.c | 5 +- kernel/bpf/inode.c | 39 +- kernel/bpf/preload/Kconfig | 7 +- kernel/bpf/preload/Makefile | 14 +- kernel/bpf/preload/bpf_preload.h | 8 +- kernel/bpf/preload/bpf_preload_kern.c | 119 ++-- kernel/bpf/preload/bpf_preload_umd_blob.S | 7 - kernel/bpf/preload/iterators/bpf_preload_common.h | 13 - kernel/bpf/preload/iterators/iterators.c | 108 ---- kernel/bpf/preload/iterators/iterators.lskel.h | 141 +++-- kernel/bpf/syscall.c | 40 +- kernel/bpf/verifier.c | 11 +- tools/bpf/bpftool/Documentation/bpftool-gen.rst | 90 +++ tools/bpf/bpftool/Documentation/common_options.rst | 13 +- tools/bpf/bpftool/Makefile | 14 +- tools/bpf/bpftool/bash-completion/bpftool | 6 +- tools/bpf/bpftool/gen.c | 654 ++++++++++++++++++++- tools/bpf/bpftool/main.c | 25 + tools/bpf/bpftool/map.c | 33 +- tools/lib/bpf/gen_loader.c | 15 +- tools/lib/bpf/libbpf.c | 88 +-- tools/lib/bpf/libbpf.map | 2 +- tools/lib/bpf/libbpf_internal.h | 9 + tools/lib/bpf/netlink.c | 63 +- tools/lib/bpf/relo_core.c | 79 +-- tools/lib/bpf/relo_core.h | 42 +- tools/lib/bpf/skel_internal.h | 185 +++++- tools/testing/selftests/bpf/prog_tests/btf.c | 2 +- .../testing/selftests/bpf/prog_tests/core_reloc.c | 52 +- .../testing/selftests/bpf/prog_tests/tc_redirect.c | 2 +- .../selftests/bpf/prog_tests/xdp_adjust_frags.c | 38 +- tools/testing/selftests/bpf/test_cpp.cpp | 87 ++- tools/testing/selftests/bpf/vmtest.sh | 2 +- 34 files changed, 1502 insertions(+), 524 deletions(-) delete mode 100644 kernel/bpf/preload/bpf_preload_umd_blob.S delete mode 100644 kernel/bpf/preload/iterators/bpf_preload_common.h delete mode 100644 kernel/bpf/preload/iterators/iterators.c
