Hi David,
The following pull-request contains BPF updates for your *net* tree.
We've added 23 non-merge commits during the last 4 day(s) which contain
a total of 32 files changed, 421 insertions(+), 141 deletions(-).
The main changes are:
1) Fix sock_ops ctx access splat due to register override, from John Fastabend.
2) Batch of various fixes to libbpf, bpftool, and selftests when testing build
in 32-bit mode, from Andrii Nakryiko.
3) Fix vmlinux.h generation on ARM by mapping GCC built-in types (__Poly*_t)
to equivalent ones clang can work with, from Jean-Philippe Brucker.
4) Fix build_id lookup in bpf_get_stackid() helper by walking all NOTE ELF
sections instead of just first, from Jiri Olsa.
5) Avoid use of __builtin_offsetof() in libbpf for CO-RE, from Yonghong Song.
6) Fix segfault in test_mmap due to inconsistent length params, from Jianlin Lv.
7) Don't override errno in libbpf when logging errors, from Toke Høiland-Jørgensen.
8) Fix v4_to_v6 sockaddr conversion in sk_lookup test, from Stanislav Fomichev.
9) Add link to bpf-helpers(7) man page to BPF doc, from Joe Stringer.
Please consider pulling these changes from:
git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git
Thanks a lot!
Also thanks to reporters, reviewers and testers of commits in this pull-request:
Andrii Nakryiko, Ian Rogers, Jakov Petrina, Jakub Sitnicki, Martin KaFai
Lau, Song Liu, Stanislav Fomichev, Toke Høiland-Jørgensen
----------------------------------------------------------------
The following changes since commit 444da3f52407d74c9aa12187ac6b01f76ee47d62:
bitfield.h: don't compile-time validate _val in FIELD_FIT (2020-08-10 12:16:51 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git
for you to fetch changes up to 4fccd2ff74fbad222c69c7604307e0773a37ab8d:
selftests/bpf: Make test_varlen work with 32-bit user-space arch (2020-08-13 16:45:41 -0700)
----------------------------------------------------------------
Andrii Nakryiko (11):
bpf: Fix XDP FD-based attach/detach logic around XDP_FLAGS_UPDATE_IF_NOEXIST
tools/bpftool: Make skeleton code C++17-friendly by dropping typeof()
tools/bpftool: Fix compilation warnings in 32-bit mode
selftest/bpf: Fix compilation warnings in 32-bit mode
libbpf: Fix BTF-defined map-in-map initialization on 32-bit host arches
libbpf: Handle BTF pointer sizes more carefully
selftests/bpf: Fix btf_dump test cases on 32-bit arches
libbpf: Enforce 64-bitness of BTF for BPF object files
selftests/bpf: Correct various core_reloc 64-bit assumptions
tools/bpftool: Generate data section struct with conservative alignment
selftests/bpf: Make test_varlen work with 32-bit user-space arch
Jean-Philippe Brucker (1):
libbpf: Handle GCC built-in types for Arm NEON
Jianlin Lv (1):
selftests/bpf: Fix segmentation fault in test_progs
Jiri Olsa (1):
bpf: Iterate through all PT_NOTE sections when looking for build id
Joe Stringer (1):
doc: Add link to bpf helpers man page
John Fastabend (5):
bpf: sock_ops ctx access may stomp registers in corner case
bpf: sock_ops sk access may stomp registers when dst_reg = src_reg
bpf, selftests: Add tests for ctx access in sock_ops with single register
bpf, selftests: Add tests for sock_ops load with r9, r8.r7 registers
bpf, selftests: Add tests to sock_ops for loading sk
Stanislav Fomichev (1):
selftests/bpf: Fix v4_to_v6 in sk_lookup
Toke Høiland-Jørgensen (1):
libbpf: Prevent overriding errno when logging errors
Yonghong Song (1):
libbpf: Do not use __builtin_offsetof for offsetof
Documentation/bpf/index.rst | 7 ++
kernel/bpf/stackmap.c | 24 ++++---
net/core/dev.c | 8 +--
net/core/filter.c | 75 +++++++++++++++----
tools/bpf/bpftool/btf_dumper.c | 2 +-
tools/bpf/bpftool/gen.c | 22 ++++--
tools/bpf/bpftool/link.c | 4 +-
tools/bpf/bpftool/main.h | 10 ++-
tools/bpf/bpftool/prog.c | 16 ++---
tools/lib/bpf/bpf_helpers.h | 2 +-
tools/lib/bpf/btf.c | 83 +++++++++++++++++++++-
tools/lib/bpf/btf.h | 2 +
tools/lib/bpf/btf_dump.c | 39 +++++++++-
tools/lib/bpf/libbpf.c | 32 ++++++---
tools/lib/bpf/libbpf.map | 2 +
.../testing/selftests/bpf/prog_tests/bpf_obj_id.c | 8 +--
tools/testing/selftests/bpf/prog_tests/btf_dump.c | 27 +++++--
.../testing/selftests/bpf/prog_tests/core_extern.c | 4 +-
.../testing/selftests/bpf/prog_tests/core_reloc.c | 20 +++---
.../selftests/bpf/prog_tests/fexit_bpf2bpf.c | 6 +-
.../selftests/bpf/prog_tests/flow_dissector.c | 2 +-
.../testing/selftests/bpf/prog_tests/global_data.c | 6 +-
tools/testing/selftests/bpf/prog_tests/mmap.c | 19 +++--
.../selftests/bpf/prog_tests/prog_run_xattr.c | 2 +-
tools/testing/selftests/bpf/prog_tests/sk_lookup.c | 1 +
tools/testing/selftests/bpf/prog_tests/skb_ctx.c | 2 +-
tools/testing/selftests/bpf/prog_tests/varlen.c | 8 +--
.../testing/selftests/bpf/progs/core_reloc_types.h | 69 +++++++++---------
.../testing/selftests/bpf/progs/test_tcpbpf_kern.c | 41 +++++++++++
tools/testing/selftests/bpf/progs/test_varlen.c | 6 +-
tools/testing/selftests/bpf/test_btf.c | 8 +--
tools/testing/selftests/bpf/test_progs.h | 5 ++
32 files changed, 421 insertions(+), 141 deletions(-)
