projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| ec8f24b7 | 1 | # SPDX-License-Identifier: GPL-2.0-only |
| 24fa0402 LC |
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, | |
| 8e2a46a4 | 8 | CRC32 is supported. See Documentation/staging/xz.rst for more information. |
| 24fa0402 | 9 | |
| 9d749629 FF |
10 | if XZ_DEC |
| 11 | ||
| 24fa0402 | 12 | config XZ_DEC_X86 |
| bf4d064d LC |
13 | bool "x86 BCJ filter decoder" if EXPERT |
| 14 | default y | |
| 24fa0402 LC |
15 | select XZ_DEC_BCJ |
| 16 | ||
| 17 | config XZ_DEC_POWERPC | |
| bf4d064d LC |
18 | bool "PowerPC BCJ filter decoder" if EXPERT |
| 19 | default y | |
| 24fa0402 LC |
20 | select XZ_DEC_BCJ |
| 21 | ||
| 22 | config XZ_DEC_IA64 | |
| bf4d064d LC |
23 | bool "IA-64 BCJ filter decoder" if EXPERT |
| 24 | default y | |
| 24fa0402 LC |
25 | select XZ_DEC_BCJ |
| 26 | ||
| 27 | config XZ_DEC_ARM | |
| bf4d064d LC |
28 | bool "ARM BCJ filter decoder" if EXPERT |
| 29 | default y | |
| 24fa0402 LC |
30 | select XZ_DEC_BCJ |
| 31 | ||
| 32 | config XZ_DEC_ARMTHUMB | |
| bf4d064d LC |
33 | bool "ARM-Thumb BCJ filter decoder" if EXPERT |
| 34 | default y | |
| 24fa0402 LC |
35 | select XZ_DEC_BCJ |
| 36 | ||
| 37 | config XZ_DEC_SPARC | |
| bf4d064d LC |
38 | bool "SPARC BCJ filter decoder" if EXPERT |
| 39 | default y | |
| 24fa0402 LC |
40 | select XZ_DEC_BCJ |
| 41 | ||
| aaa2975f LC |
42 | config XZ_DEC_MICROLZMA |
| 43 | bool "MicroLZMA decoder" | |
| 44 | default n | |
| 45 | help | |
| 46 | MicroLZMA is a header format variant where the first byte | |
| 47 | of a raw LZMA stream (without the end of stream marker) has | |
| 48 | been replaced with a bitwise-negation of the lc/lp/pb | |
| 49 | properties byte. MicroLZMA was created to be used in EROFS | |
| 50 | but can be used by other things too where wasting minimal | |
| 51 | amount of space for headers is important. | |
| 52 | ||
| 53 | Unless you know that you need this, say N. | |
| 54 | ||
| 9d749629 FF |
55 | endif |
| 56 | ||
| 24fa0402 LC |
57 | config XZ_DEC_BCJ |
| 58 | bool | |
| 59 | default n | |
| 60 | ||
| 61 | config XZ_DEC_TEST | |
| 62 | tristate "XZ decompressor tester" | |
| 63 | default n | |
| 64 | depends on XZ_DEC | |
| 65 | help | |
| 66 | This allows passing .xz files to the in-kernel XZ decoder via | |
| 67 | a character special file. It calculates CRC32 of the decompressed | |
| 68 | data and writes diagnostics to the system log. | |
| 69 | ||
| 70 | Unless you are developing the XZ decoder, you don't need this | |
| 71 | and should say N. |