diff options
| author | Waldemar Brodkorb <wbx@openadk.org> | 2014-06-30 08:40:35 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2014-06-30 08:40:35 +0200 |
| commit | 8b2ea5fd6a65f35d670eba5c44a7f7f9d561c131 (patch) | |
| tree | 249a0a0e9f103e5866b69405223204b5a4fba1f7 /target | |
| parent | eb3f81cc2f161f97954b9b93839a0225bc2bf83b (diff) | |
add support for lz4 compressed kernel and initramfs
Diffstat (limited to 'target')
| -rw-r--r-- | target/config/Config.in.tools | 9 | ||||
| -rw-r--r-- | target/linux/config/Config.in.kernel | 18 | ||||
| -rw-r--r-- | target/linux/patches/3.15.2/lz4.patch | 16 |
3 files changed, 43 insertions, 0 deletions
diff --git a/target/config/Config.in.tools b/target/config/Config.in.tools index 194dba7a0..5e8e3ba77 100644 --- a/target/config/Config.in.tools +++ b/target/config/Config.in.tools @@ -98,6 +98,14 @@ config ADK_HOST_BUILD_GENEXT2FS boolean default n +config ADK_HOST_NEED_LZ4 + boolean + default n + +config ADK_HOST_BUILD_LZ4 + boolean + default n + config ADK_HOST_NEED_LZMA boolean default n @@ -179,6 +187,7 @@ config ADK_COMPRESSION_TOOL default "gzip -n9" if ADK_KERNEL_INITRAMFS_COMPRESSION_GZIP default "bzip2" if ADK_KERNEL_INITRAMFS_COMPRESSION_BZIP2 default "xz -v --check=crc32 --lzma2=dict=1MiB" if ADK_KERNEL_INITRAMFS_COMPRESSION_XZ + default "lz4c -l" if ADK_KERNEL_INITRAMFS_COMPRESSION_LZ4 default "lzma -9" if ADK_KERNEL_INITRAMFS_COMPRESSION_LZMA default "lzop" if ADK_KERNEL_INITRAMFS_COMPRESSION_LZO default "gzip -n9" diff --git a/target/linux/config/Config.in.kernel b/target/linux/config/Config.in.kernel index 1999b2055..348498936 100644 --- a/target/linux/config/Config.in.kernel +++ b/target/linux/config/Config.in.kernel @@ -17,6 +17,10 @@ config ADK_KERNEL_INITRAMFS_COMPRESSION_XZ select ADK_HOST_NEED_XZ boolean +config ADK_KERNEL_INITRAMFS_COMPRESSION_LZ4 + select ADK_HOST_NEED_LZ4 + boolean + config ADK_KERNEL_INITRAMFS_COMPRESSION_LZMA select ADK_HOST_NEED_LZMA boolean @@ -44,6 +48,12 @@ config ADK_KERNEL_RD_BZIP2 config ADK_KERNEL_KERNEL_BZIP2 boolean +config ADK_KERNEL_RD_LZ4 + boolean + +config ADK_KERNEL_KERNEL_LZ4 + boolean + config ADK_KERNEL_RD_LZMA boolean @@ -137,6 +147,14 @@ config ADK_KERNEL_COMP_XZ select ADK_KERNEL_KERNEL_XZ select ADK_KERNEL_INITRAMFS_COMPRESSION_XZ +config ADK_KERNEL_COMP_LZ4 + prompt "use LZ4 compression" + boolean + select ADK_KERNEL_RD_LZ4 + select ADK_KERNEL_KERNEL_LZ4 + select ADK_KERNEL_INITRAMFS_COMPRESSION_LZ4 + depends on ADK_LINUX_X86 || ADK_LINUX_ARM + config ADK_KERNEL_COMP_LZMA prompt "use LZMA compression" boolean diff --git a/target/linux/patches/3.15.2/lz4.patch b/target/linux/patches/3.15.2/lz4.patch new file mode 100644 index 000000000..3106015ab --- /dev/null +++ b/target/linux/patches/3.15.2/lz4.patch @@ -0,0 +1,16 @@ +diff -Nur linux-3.15.2.orig/usr/Kconfig linux-3.15.2/usr/Kconfig +--- linux-3.15.2.orig/usr/Kconfig 2014-06-26 21:17:52.000000000 +0200 ++++ linux-3.15.2/usr/Kconfig 2014-06-30 08:29:00.000000000 +0200 +@@ -174,4 +174,12 @@ + size is about 10% bigger than gzip; however its speed + (both compression and decompression) is the fastest. + ++config INITRAMFS_COMPRESSION_LZ4 ++ bool "LZ4" ++ depends on RD_LZ4 ++ help ++ Its compression ratio is the poorest among the choices. The kernel ++ size is about 10% bigger than gzip; however its speed ++ (both compression and decompression) is the fastest. ++ + endchoice |