Commit 333b11e5 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo Committed by Jonathan Corbet

Documentation: Add minimum pahole version

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/26Acked-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Acked-by: default avatarDaniel 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.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/YZfzQ0DvHD5o26Bt@kernel.orgSigned-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent aa9b5e0d
...@@ -35,6 +35,7 @@ GNU make 3.81 make --version ...@@ -35,6 +35,7 @@ GNU make 3.81 make --version
binutils 2.23 ld -v binutils 2.23 ld -v
flex 2.5.35 flex --version flex 2.5.35 flex --version
bison 2.0 bison --version bison 2.0 bison --version
pahole 1.16 pahole --version
util-linux 2.10o fdformat --version util-linux 2.10o fdformat --version
kmod 13 depmod -V kmod 13 depmod -V
e2fsprogs 1.41.4 e2fsck -V e2fsprogs 1.41.4 e2fsck -V
...@@ -108,6 +109,16 @@ Bison ...@@ -108,6 +109,16 @@ Bison
Since Linux 4.16, the build system generates parsers Since Linux 4.16, the build system generates parsers
during build. This requires bison 2.0 or later. 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 Perl
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