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From: Adam Borowski <>
To: Michal Marek <>,
	Masahiro Yamada <>,,
	Paul Menzel <>,
	Pavel Machek <>,,,
	Ingo Molnar <>
Cc: Adam Borowski <>
Subject: [PATCH resend] scripts: teach extract-vmlinux about LZ4 and ZSTD
Date: Sat,  7 Jul 2018 02:15:48 +0200	[thread overview]
Message-ID: <> (raw)

Note that the LZ4 signature is different than that of modern LZ4 as we
use the "legacy" format which suffers from some downsides like inability
to disable compression.

Signed-off-by: Adam Borowski <>
The first time this was sent I managed to screw up both the subject and
scissors line, so it's likely whatever filter you're using didn't notice
the patch inside a thread.

ZSTD compression for vmlinux is not yet in, but being able to unpack it
can't hurt.  LZ4 is in for quite a while.

 scripts/extract-vmlinux | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/scripts/extract-vmlinux b/scripts/extract-vmlinux
index 5061abcc2540..e6239f39abad 100755
--- a/scripts/extract-vmlinux
+++ b/scripts/extract-vmlinux
@@ -57,6 +57,8 @@ try_decompress '\3757zXZ\000' abcde unxz
 try_decompress 'BZh'          xy    bunzip2
 try_decompress '\135\0\0\0'   xxx   unlzma
 try_decompress '\211\114\132' xy    'lzop -d'
+try_decompress '\002!L\030'   xxx   'lz4 -d'
+try_decompress '(\265/\375'   xxx   unzstd
 # Bail out:
 echo "$me: Cannot find vmlinux." >&2

             reply	other threads:[~2018-07-07  0:16 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-07  0:15 Adam Borowski [this message]
2018-07-08  2:04 ` [PATCH resend] scripts: teach extract-vmlinux about LZ4 and ZSTD Masahiro Yamada

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