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 Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> Acked-by: Andrii Nakryiko <andrii@xxxxxxxxxx> Acked-by: Daniel Borkmann <daniel@xxxxxxxxxxxxx> Cc: Alexei Starovoitov <ast@xxxxxxxxxx> Cc: Jiri Olsa <jolsa@xxxxxxxxxx> Cc: Jonathan Corbet <corbet@xxxxxxx> Cc: bpf@xxxxxxxxxxxxxxx Cc: netdev@xxxxxxxxxxxxxxx Link: http://lore.kernel.org/lkml/YZPQ6+u2wTHRfR+W@xxxxxxxxxx Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> --- Documentation/process/changes.rst | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst index e35ab74a0f804b04..572465db0db19e8f 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 ---- -- 2.31.1
