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From: Alex Pilon <alp+linux@alexpilon.ca>
To: linux-kernel@vger.kernel.org
Subject: [PATCH] scripts/extract-ikconfig: Support LZ4-compressed images.
Date: Tue, 14 Apr 2015 00:38:33 -0400	[thread overview]
Message-ID: <20150414043833.GA7941@alexpilon.ca> (raw)

Support for kernel image LZ4 compression was added around 3.11, but not
the corresponding kernel .config extraction.

This makes possible extracting the kernel config for LZ4-compressed
kernels you're not running, or the current LZ4-compressed kernel if
compiled without /proc/config.gz support.

Signed-off-by: Alex Pilon <alp+linux@alexpilon.ca>
---
 scripts/extract-ikconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/extract-ikconfig b/scripts/extract-ikconfig
index e186242..3b42f25 100755
--- a/scripts/extract-ikconfig
+++ b/scripts/extract-ikconfig
@@ -61,6 +61,7 @@ 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\041\114\030' xyy 'lz4 -d -l'
 
 # Bail out:
 echo "$me: Cannot find kernel config." >&2
-- 
2.3.5


             reply	other threads:[~2015-04-14  4:44 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-14  4:38 Alex Pilon [this message]
2015-04-15 12:08 ` [PATCH] scripts/extract-ikconfig: Support LZ4-compressed images Michal Marek

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