Android-targeted devices support so called sparse image format. This is
the raw filesystem image with dropped zero blocks. This way the image
takes less space and the bootloaders and/or filesystem manipulation
tools can flash it quicker (as they do not have to write useless
sequences of zeroes).
Add new image conversion type called 'sparse'to be able to generate
filesystem images in the sparse format.
Signed-off-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
---
meta/classes-recipe/image_types.bbclass | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/meta/classes-recipe/image_types.bbclass
b/meta/classes-recipe/image_types.bbclass
index d615b41ed1ed..d0c9514b36a3 100644
--- a/meta/classes-recipe/image_types.bbclass
+++ b/meta/classes-recipe/image_types.bbclass
@@ -328,7 +328,7 @@ IMAGE_TYPES:append:x86-64 = " hddimg iso"
# CONVERSION_CMD/DEPENDS.
COMPRESSIONTYPES ?= ""
-CONVERSIONTYPES = "gz bz2 lzma xz lz4 lzo zip 7zip zst sum md5sum sha1sum
sha224sum sha256sum sha384sum sha512sum bmap u-boot vmdk vhd vhdx vdi qcow2
base64 gzsync zsync ${COMPRESSIONTYPES}"
+CONVERSIONTYPES = "gz bz2 lzma xz lz4 lzo zip 7zip zst sum md5sum sha1sum
sha224sum sha256sum sha384sum sha512sum bmap u-boot vmdk vhd vhdx vdi qcow2
base64 gzsync zsync sparse ${COMPRESSIONTYPES}"
CONVERSION_CMD:lzma = "lzma -k -f -7 ${IMAGE_NAME}.${type}"
CONVERSION_CMD:gz = "gzip -f -9 -n -c --rsyncable ${IMAGE_NAME}.${type} >
${IMAGE_NAME}.${type}.gz"
CONVERSION_CMD:bz2 = "pbzip2 -f -k ${IMAGE_NAME}.${type}"
@@ -355,6 +355,7 @@ CONVERSION_CMD:qcow2 = "qemu-img convert -O qcow2
${IMAGE_NAME}.${type} ${IMAGE_
CONVERSION_CMD:base64 = "base64 ${IMAGE_NAME}.${type} >
${IMAGE_NAME}.${type}.base64"
CONVERSION_CMD:zsync = "zsyncmake_curl ${IMAGE_NAME}.${type}"
CONVERSION_CMD:gzsync = "zsyncmake_curl -z ${IMAGE_NAME}.${type}"
+CONVERSION_CMD:sparse = "img2simg -c ${IMAGE_NAME}.${type}
${IMAGE_NAME}.${type}.sparse"
CONVERSION_DEPENDS_lzma = "xz-native"
CONVERSION_DEPENDS_gz = "pigz-native"
CONVERSION_DEPENDS_bz2 = "pbzip2-native"
@@ -375,6 +376,7 @@ CONVERSION_DEPENDS_vhdx = "qemu-system-native"
CONVERSION_DEPENDS_vhd = "qemu-system-native"
CONVERSION_DEPENDS_zsync = "zsync-curl-native"
CONVERSION_DEPENDS_gzsync = "zsync-curl-native"
+CONVERSION_DEPENDS_sparse = "rust-android-sparse-native"
RUNNABLE_IMAGE_TYPES ?= "ext2 ext3 ext4"
RUNNABLE_MACHINE_PATTERNS ?= "qemu"
--
2.39.2
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