[PATCH 1/1] Documentation: Add minimum pahole version
From: Arnaldo Carvalho de Melo <acme@kernel.org>
Date: 2021-11-16 15:41:51
Also in:
bpf, lkml
Subsystem:
documentation, documentation process, the rest · Maintainers:
Jonathan Corbet, Linus Torvalds
A report was made in https://github.com/acmel/dwarves/issues/26 about pahole not being listed in the process/changes.rst file as being needed for building the kernel, address that. Link: https://github.com/acmel/dwarves/issues/26 Cc: Alexei Starovoitov <ast@kernel.org> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Jiri Olsa <redacted> Cc: Jonathan Corbet <corbet@lwn.net> Cc: bpf@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <redacted> --- Documentation/process/changes.rst | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst
index e35ab74a0f804b04..c45f167a1b6c02a4 100644
--- a/Documentation/process/changes.rst
+++ b/Documentation/process/changes.rst@@ -35,6 +35,7 @@ GNU make 3.81 make --version binutils 2.23 ld -v flex 2.5.35 flex --version bison 2.0 bison --version +pahole 1.16 pahole --version util-linux 2.10o fdformat --version kmod 13 depmod -V e2fsprogs 1.41.4 e2fsck -V
@@ -108,6 +109,14 @@ Bison Since Linux 4.16, the build system generates parsers during build. This requires bison 2.0 or later. +pahole: +------- + +Since Linux 5.2 the build system generates BTF (BPF Type Format) from DWARF in +vmlinux, a bit later from kernel modules as well, if CONFIG_DEBUG_INFO_BTF is +selected. This requires pahole v1.16 or later. It is found in the 'dwarves' or +'pahole' distro packages or from https://fedorapeople.org/~acme/dwarves/. + Perl ----
--
2.31.1