[Buildroot] [git commit] linux: add support for ZSTD compression
Thomas Petazzoni
thomas.petazzoni at bootlin.com
Thu Sep 3 20:26:44 UTC 2020
commit: https://git.buildroot.net/buildroot/commit/?id=88a268354daaaa6422ed875ad8c580dbaf1d81a1
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master
Add support for creating self-extractible kernels compressed with ZSTD.
Signed-off-by: Paul Cercueil <paul at crapouillou.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
---
linux/Config.in | 3 +++
linux/linux.mk | 3 +++
2 files changed, 6 insertions(+)
diff --git a/linux/Config.in b/linux/Config.in
index 7c2ede8ce2..834f362ead 100644
--- a/linux/Config.in
+++ b/linux/Config.in
@@ -321,6 +321,9 @@ config BR2_LINUX_KERNEL_LZO
config BR2_LINUX_KERNEL_XZ
bool "xz compression"
+config BR2_LINUX_KERNEL_ZSTD
+ bool "zstd compression"
+
endchoice
config BR2_LINUX_KERNEL_IMAGE_TARGET_NAME
diff --git a/linux/linux.mk b/linux/linux.mk
index 372fa51c72..e07e014d1e 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -98,12 +98,15 @@ else ifeq ($(BR2_LINUX_KERNEL_LZO),y)
LINUX_DEPENDENCIES += host-lzop
else ifeq ($(BR2_LINUX_KERNEL_XZ),y)
LINUX_DEPENDENCIES += host-xz
+else ifeq ($(BR2_LINUX_KERNEL_ZSTD),y)
+LINUX_DEPENDENCIES += host-zstd
endif
LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_GZIP) += CONFIG_KERNEL_GZIP
LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_LZ4) += CONFIG_KERNEL_LZ4
LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_LZMA) += CONFIG_KERNEL_LZMA
LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_LZO) += CONFIG_KERNEL_LZO
LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_XZ) += CONFIG_KERNEL_XZ
+LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_ZSTD) += CONFIG_KERNEL_ZSTD
ifeq ($(BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL),y)
LINUX_DEPENDENCIES += host-openssl
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