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authorArnaldo Carvalho de Melo <[email protected]>2021-11-19 15:56:03 -0300
committerJonathan Corbet <[email protected]>2021-11-29 14:48:00 -0700
commit333b11e541feeb79e7cce31dd5b280ceded388e4 (patch)
treedc8a45a4ad47199393a5044b82c1162e845e8a18
parentaa9b5e0df226edbf1879cb8f17a409cc3fd89c9d (diff)
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/26 Acked-by: Andrii Nakryiko <[email protected]> Acked-by: Daniel Borkmann <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Jiri Olsa <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
-rw-r--r--Documentation/process/changes.rst11
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
----