| Thomas Gleixner | ec8f24b | 2019-05-19 13:07:45 +0100 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0-only |
| Lasse Collin | 24fa040 | 2011-01-12 17:01:22 -0800 | [diff] [blame] | 2 | config XZ_DEC |
| 3 | tristate "XZ decompression support" |
| 4 | select CRC32 |
| 5 | help |
| 6 | LZMA2 compression algorithm and BCJ filters are supported using |
| 7 | the .xz file format as the container. For integrity checking, |
| Mauro Carvalho Chehab | 8e2a46a | 2020-06-15 08:50:25 +0200 | [diff] [blame] | 8 | CRC32 is supported. See Documentation/staging/xz.rst for more information. |
| Lasse Collin | 24fa040 | 2011-01-12 17:01:22 -0800 | [diff] [blame] | 9 | |
| Florian Fainelli | 9d74962 | 2013-02-21 16:44:10 -0800 | [diff] [blame] | 10 | if XZ_DEC |
| 11 | |
| Lasse Collin | 24fa040 | 2011-01-12 17:01:22 -0800 | [diff] [blame] | 12 | config XZ_DEC_X86 |
| Lasse Collin | bf4d064 | 2014-06-04 16:11:50 -0700 | [diff] [blame] | 13 | bool "x86 BCJ filter decoder" if EXPERT |
| 14 | default y |
| Lasse Collin | 24fa040 | 2011-01-12 17:01:22 -0800 | [diff] [blame] | 15 | select XZ_DEC_BCJ |
| 16 | |
| 17 | config XZ_DEC_POWERPC |
| Lasse Collin | bf4d064 | 2014-06-04 16:11:50 -0700 | [diff] [blame] | 18 | bool "PowerPC BCJ filter decoder" if EXPERT |
| 19 | default y |
| Lasse Collin | 24fa040 | 2011-01-12 17:01:22 -0800 | [diff] [blame] | 20 | select XZ_DEC_BCJ |
| 21 | |
| 22 | config XZ_DEC_IA64 |
| Lasse Collin | bf4d064 | 2014-06-04 16:11:50 -0700 | [diff] [blame] | 23 | bool "IA-64 BCJ filter decoder" if EXPERT |
| 24 | default y |
| Lasse Collin | 24fa040 | 2011-01-12 17:01:22 -0800 | [diff] [blame] | 25 | select XZ_DEC_BCJ |
| 26 | |
| 27 | config XZ_DEC_ARM |
| Lasse Collin | bf4d064 | 2014-06-04 16:11:50 -0700 | [diff] [blame] | 28 | bool "ARM BCJ filter decoder" if EXPERT |
| 29 | default y |
| Lasse Collin | 24fa040 | 2011-01-12 17:01:22 -0800 | [diff] [blame] | 30 | select XZ_DEC_BCJ |
| 31 | |
| 32 | config XZ_DEC_ARMTHUMB |
| Lasse Collin | bf4d064 | 2014-06-04 16:11:50 -0700 | [diff] [blame] | 33 | bool "ARM-Thumb BCJ filter decoder" if EXPERT |
| 34 | default y |
| Lasse Collin | 24fa040 | 2011-01-12 17:01:22 -0800 | [diff] [blame] | 35 | select XZ_DEC_BCJ |
| 36 | |
| 37 | config XZ_DEC_SPARC |
| Lasse Collin | bf4d064 | 2014-06-04 16:11:50 -0700 | [diff] [blame] | 38 | bool "SPARC BCJ filter decoder" if EXPERT |
| 39 | default y |
| Lasse Collin | 24fa040 | 2011-01-12 17:01:22 -0800 | [diff] [blame] | 40 | select XZ_DEC_BCJ |
| 41 | |
| Florian Fainelli | 9d74962 | 2013-02-21 16:44:10 -0800 | [diff] [blame] | 42 | endif |
| 43 | |
| Lasse Collin | 24fa040 | 2011-01-12 17:01:22 -0800 | [diff] [blame] | 44 | config XZ_DEC_BCJ |
| 45 | bool |
| 46 | default n |
| 47 | |
| 48 | config XZ_DEC_TEST |
| 49 | tristate "XZ decompressor tester" |
| 50 | default n |
| 51 | depends on XZ_DEC |
| 52 | help |
| 53 | This allows passing .xz files to the in-kernel XZ decoder via |
| 54 | a character special file. It calculates CRC32 of the decompressed |
| 55 | data and writes diagnostics to the system log. |
| 56 | |
| 57 | Unless you are developing the XZ decoder, you don't need this |
| 58 | and should say N. |