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authorGravatar Paul Cercueil <paul@crapouillou.net>2020-09-01 15:48:49 +0200
committerGravatar Thomas Petazzoni <thomas.petazzoni@bootlin.com>2020-09-03 22:26:44 +0200
commit88a268354daaaa6422ed875ad8c580dbaf1d81a1 (patch)
tree8c8451fa8dcf706f42695162025c145a13264e1b /linux
parentf4c89374eaec306872359b6f1df89cfc9bb1d86a (diff)
downloadbuildroot-88a268354daaaa6422ed875ad8c580dbaf1d81a1.tar.gz
buildroot-88a268354daaaa6422ed875ad8c580dbaf1d81a1.tar.bz2
linux: add support for ZSTD compression
Add support for creating self-extractible kernels compressed with ZSTD. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Diffstat (limited to 'linux')
-rw-r--r--linux/Config.in3
-rw-r--r--linux/linux.mk3
2 files changed, 6 insertions, 0 deletions
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