From: Patrick Ohly <patrick.ohly@intel.com>
Date: Thu, 3 Sep 2015 18:42:31 +0000 (+0200)
Subject: image-vm.bbclass: support specifying an initramfs
X-Git-Tag: lucaceresoli/bug-15201-perf-libtraceevent-missing~29058
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7fa76bd923fd643cf0984077321d6064d8ec3a2b;p=thirdparty%2Fopenembedded%2Fopenembedded-core-contrib.git

image-vm.bbclass: support specifying an initramfs

Set INITRD_IMAGE to automatically add a custom initramfs to the boot
partition.

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---

diff --git a/meta/classes/image-vm.bbclass b/meta/classes/image-vm.bbclass
index 3df2c362e03..0632667084f 100644
--- a/meta/classes/image-vm.bbclass
+++ b/meta/classes/image-vm.bbclass
@@ -3,6 +3,11 @@ SYSLINUX_PROMPT ?= "0"
 SYSLINUX_LABELS = "boot"
 LABELS_append = " ${SYSLINUX_LABELS} "
 
+# Using an initramfs is optional. Enable it by setting INITRD_IMAGE.
+INITRD_IMAGE ?= ""
+INITRD ?= "${@'${DEPLOY_DIR_IMAGE}/${INITRD_IMAGE}-${MACHINE}.cpio.gz' if '${INITRD_IMAGE}' else ''}"
+do_bootdirectdisk[depends] += "${@'${INITRD_IMAGE}:do_rootfs' if '${INITRD_IMAGE}' else ''}"
+
 # need to define the dependency and the ROOTFS for directdisk
 do_bootdirectdisk[depends] += "${PN}:do_rootfs"
 ROOTFS ?= "${DEPLOY_DIR_IMAGE}/${IMAGE_BASENAME}-${MACHINE}.ext4"