+#ifdef CONFIG_XZ + case IH_COMP_XZ: ,ĭiff -git a/include/image.h b/include/image.h index 49d6280.5ba5afa 100644 - a/include/image.h +++ b/include/image. See man xz for other options you can set (-e/-extreme might give you some additional compression benefit for some datasets). Average compression ratio of LZMA is about 30 better than that of gzip, and 15 better than that of bzip2. The XZOPT environment variable lets you set xz options that cannot be passed via calling applications such as tar. #endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */ +#endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) || defined(CONFIG_XZ) */Ĭonst char *type_name = genimg_get_type_name -430,6 +434,25 static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress) The xz command is a program for compressing files. In general, the xz compression provides much better compression rates, at the price of significant longer compression time though. It was designed as a replacement for the popular gzip and bzip2 formats. xz format supports multiple compression algorithms, which are called 'filters' in context of XZ Utils. #if defined(CONFIG_LZMA) || defined(CONFIG_LZO) +#if defined(CONFIG_LZMA) || defined(CONFIG_LZO) || defined(CONFIG_XZ) XZ is a compressed file format that utilizes the LZMA2 compression algorithm. Overview - XZ Utils provide a general-purpose data compression library and command line tools. #ifndef -338,9 +342,9 static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress) +#ifdef CONFIG_XZ +#include +#endif /* CONFIG_XZ */ + Subject: Add XZ compressed uImage supportĬontent-Type: text/plain charset="us-ascii" Received: from (unknown )īy (MM4Csmtpd) with ESMTPS id 14412E000162 Port 10024) with ESMTP id xdw3vpVJ1FUL for Received: from ()īy localhost ( ) (amavisd-new,
Signed-off-by: Luigi Comio Mantellini <>.XZ COMPRESSION PATCH
Received: from localhost ( )īy (MM4Csmtpd) with ESMTP id 2B9B2E0001B2 This patch permits to use XZ compressed uImages using the XZ embedded library code.
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NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 They can be decompressed using the XZ utility, which is included in most Linux distributions. If you want to use low amount of memory you could try the option 4e for the xz which uses less memory, but it will be slower than the default.
This will allow us to use xz options, like -extreme.
XZ COMPRESSION SOFTWARE
XZ files are typically used for software distributions and backup archives. We can use tar and pipe the output to xz. It uses the LZMA algorithm to compress data, and can achieve a compression ratio of up to 50. Received: from (localhost )īy (Postfix) with ESMTP id AC31F280EA īy (Postfix) with ESMTP id 1B737280EA XZ file are generated and saved as binary files to disc. Received: from ()īy localhost ( ) (amavisd-new, port 10024) Received: from localhost (localhost )īy (Postfix) with ESMTP id 3576828103 X-Original-To: from ( )īy (Postfix) with ESMTP id 83CACB70CC
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