Initial upload, version 7.2.0

Signed-off-by: Jiri Pospisil <jiri@jpospisil.com>

4 files changed, 126 insertions, 0 deletions

diff --git a/.SRCINFO b/.SRCINFO
new file mode 100644
index 000000000000..c4ad876de000
--- /dev/null
+++ b/.SRCINFO
@@ -0,0 +1,17 @@
+pkgbase = bpftool-bin
+	pkgdesc = bpftool is a tool for inspection and simple manipulation of eBPF programs and maps
+	pkgver = 7.2.0
+	pkgrel = 1
+	url = https://github.com/libbpf/bpftool
+	changelog = CHANGELOG
+	arch = x86_64
+	arch = aarch64
+	license = GPL2
+	provides = bpftool
+	conflicts = bpftool
+	source_x86_64 = https://github.com/libbpf/bpftool/releases/download/v7.2.0/bpftool-v7.2.0-amd64.tar.gz
+	b2sums_x86_64 = 30dcd2127a7d6a0a6b15140d2d849fe4548b8ea7c177607e00780ce8b25d307fa80f4f1414fbc79a3ea378f2d34cc4229b2ab29f9c7b8399dafe06bee7e60875
+	source_aarch64 = https://github.com/libbpf/bpftool/releases/download/v7.2.0/bpftool-v7.2.0-arm64.tar.gz
+	b2sums_aarch64 = bd6d0d3dce357a25279d995b8744519c9d78744dc207afb66c60805b1264838a701c786e1ba7686a433e383b9f00d43586d8bf767e31564ba00d486ed068851d
+
+pkgname = bpftool-bin
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000000..62399afa57c6
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+*.tar.*
+src/
+pkg/
diff --git a/CHANGELOG b/CHANGELOG
new file mode 100644
index 000000000000..674aa6166f1a
--- /dev/null
+++ b/CHANGELOG
@@ -0,0 +1,86 @@
+# Changes in version 0.7.2:
+
+### Breaking change:
+
+- When trying to dump the control flow graph (CFG) for a BPF program (bpftool
+  prog dump xlated <program> visual), return an error if the user passed one of
+  the --json or --pretty options, instead of simply ignoring the option.
+
+### New features
+
+- Support printing the C source code (inline annotations), if available, in the
+  CFGs for programs. Also support line numbers and opcodes in the CFGs with the
+  linum and opcodes keywords, just like for regular program dumps.
+- In the Makefile's feature detection for the mirror repository, output the
+  name, results, and stderr when probing features with V=1.
+
+### Bug fixes
+
+- Fix linkage with statically built LLVM libraries for the disassembler for
+  JIT-compiled BPF programs. Some flags and libraries were missing.
+- With bpftool prog profile, profile online CPUs instead of “possible” CPUs,
+  given that some of the latter may not be online and hence not available for
+  profiling.
+- In BPF-related feature probing, avoid marking kernel config option as not set
+  if the kernel configuration file is not found.
+- In the Makefile, add missing quotes to libbpf bootstrap submake variables, to
+  fix use cases where $(HOSTCC) is set to /usr/bin/ccache /usr/bin/gcc, for
+  example.
+- Fix a bug in the JSON writer, which would produce an escaped line break
+  instead of escaped backslash for a \ character.
+- Fix another bug in the JSON writer, about an invalid JSON escape for \'.
+- Fix bug for long instructions (such as loading a 64-bit long immediate into a
+  register) not displayed properly in program CFG dumps.
+- Fix documentation about line information display for program dumps: the
+  document hinted that displaying the source line could be turn off, and that
+  the file name would be printed “on top of” the source line, but these
+  indications were not accurate.
+- Ignore $(CFLAGS), use $(EXTRA_CFLAGS) in the Makefile's feature detection
+  framework, thus mirroring the behavior of the kernel version. On top of that,
+  fix feature detection for static builds.
+- Fix the feature detection system to account for $(FEATURE_TESTS) defined in
+  the main Makefile.
+
+### Other internal changes
+
+- Add static build instructions for bpftool in the README.md of the mirror
+  repository.
+- Use bpf_{btf,link,map,prog}_get_info_by_fd() (wrappers around
+  bpf_obj_get_info_by_fd()), to improve type safety in the code, and to help
+  with the Memory Sanitizer.
+- Always disable stack protection for building BPF programs used by bpftool. If
+  present, as is the default on Gentoo for example, stack protection for the
+  clang toolchain would produce errors when trying to compile the relevant object
+  files, but stack protection is not relevant in the case of BPF programs and it
+  is safe to turn it off.
+
+### CI
+
+- Add a release workflow to build and ship static binaries for amd64 and arm64
+  (and SHA256 sums) on releases (the workflow creates a draft release when tags
+  are pushed, and attaches the assets). Also use this workflow to ship a tarball
+  containing all sources required to compile (bpftool, plus libbpf submodule).
+  Add a script to update GitHub labels for some of these release assets.
+- Add a workflow for static builds with both LLVM and libbfd disassemblers. The
+  early version for the LLVM disassembler would include compiling the LLVM
+  libraries and take around 80 minutes to complete, but later we switched to
+  downloading libraries compatible with static linking from LLVM's CI, cutting
+  down the duration for the workflow to about 2 minutes.
+- Remove deprecated Ubuntu 18.04 GitHub runner from the CI in the matrix for
+  the build workflow.
+- In workflow definitions, add concurrency groups to cancel outdated runs.
+- Add path filters to workflow definitions, to avoid running all workflows if
+  some are not relevant for a given Pull Request.
+- Add a CI workflow to make sure GitHub mirror commits have valid prefixes
+  (mirror: or sync: or ci: only, so we can easily distinguish them from the
+  commits coming from the kernel repository).
+- Switch to the Hadolint linter for checking the Dockerfile, and improve the
+  related workflow.
+
+### Known bugs
+
+- Some features requiring the use of “skeletons” (feature-clang-bpf-co-re
+  compilation option) require kernel 5.15 or more recent, with
+  CONFIG_PERF_EVENTS set, to compile bpftool (#17).
+- Command bpftool cgroup tree may be broken when running with kernels under
+  v6.1 (#41).
diff --git a/PKGBUILD b/PKGBUILD
new file mode 100644
index 000000000000..cc1fafce7f9f
--- /dev/null
+++ b/PKGBUILD
@@ -0,0 +1,20 @@
+# Maintainer: Jiri Pospisil <jiri@jpospisil.com>
+pkgname=bpftool-bin
+pkgver=7.2.0
+pkgrel=1
+pkgdesc='bpftool is a tool for inspection and simple manipulation of eBPF programs and maps'
+url='https://github.com/libbpf/bpftool'
+source_x86_64=("https://github.com/libbpf/bpftool/releases/download/v$pkgver/bpftool-v$pkgver-amd64.tar.gz")
+source_aarch64=("https://github.com/libbpf/bpftool/releases/download/v$pkgver/bpftool-v$pkgver-arm64.tar.gz")
+arch=('x86_64' 'aarch64')
+provides=('bpftool')
+conflicts=('bpftool')
+license=('GPL2')
+changelog=CHANGELOG
+b2sums_x86_64=('30dcd2127a7d6a0a6b15140d2d849fe4548b8ea7c177607e00780ce8b25d307fa80f4f1414fbc79a3ea378f2d34cc4229b2ab29f9c7b8399dafe06bee7e60875')
+b2sums_aarch64=('bd6d0d3dce357a25279d995b8744519c9d78744dc207afb66c60805b1264838a701c786e1ba7686a433e383b9f00d43586d8bf767e31564ba00d486ed068851d')
+
+package() {
+  cd "$srcdir"
+  install -Dm755 bpftool "$pkgdir/usr/bin/bpftool"
+}