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| author | Arnaldo Carvalho de Melo <acme@kernel.org> | 2021-11-19 15:56:03 -0300 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2021-11-29 14:48:00 -0700 |
| commit | 333b11e541feeb79e7cce31dd5b280ceded388e4 (patch) | |
| tree | dc8a45a4ad47199393a5044b82c1162e845e8a18 | |
| parent | aa9b5e0df226edbf1879cb8f17a409cc3fd89c9d (diff) | |
| download | lwn-docs-5.16-3.tar.gz lwn-docs-5.16-3.zip | |
Documentation: Add minimum pahole versiondocs-5.16-3
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
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/YZPQ6+u2wTHRfR+W@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/YZfzQ0DvHD5o26Bt@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| -rw-r--r-- | Documentation/process/changes.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst index b398b8576417..cf908d79666e 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 +109,16 @@ Bison Since Linux 4.16, the build system generates parsers during build. This requires bison 2.0 or later. +pahole: +------- + +Since Linux 5.2, if CONFIG_DEBUG_INFO_BTF is selected, the build system +generates BTF (BPF Type Format) from DWARF in vmlinux, a bit later from kernel +modules as well. 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 ---- |