* [PATCH] Install kernel via replaceable recipe
@ 2018-01-23 20:45 Jan Kiszka
0 siblings, 0 replies; only message in thread
From: Jan Kiszka @ 2018-01-23 20:45 UTC (permalink / raw)
To: isar-users
From: Jan Kiszka <jan.kiszka@siemens.com>
This simplifies the common task of using a custom kernel instead of the
pre-selected debian variant: Move the kernel installation into a dummy
dpkg-raw recipe that only has the kernel package as dependency.
Which recipe is used for providing the kernel can now be selected via
the well-know PREFERRED_PROVIDER_virtual/kernel, just like in OE.
The kernel package name is communicated from the target multiconfig file
to the linux-debian recipe via the DEBIAN_KERNEL variable.
Based on an idea of Henning Schild.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
A first step towards simplifying kernel customization. I'm also
planning to add some linux-custom.inc and related files to build a
custom kernel recipe for a vanilla (non-debianized) kernel in a minute.
BTW, doc/user_manual.md is now even more outdated, but I would only
touch that once the kernel workflow is settled.
meta-isar/conf/multiconfig/qemuamd64-jessie.conf | 2 +-
meta-isar/conf/multiconfig/qemuamd64-stretch.conf | 3 ++-
meta-isar/conf/multiconfig/qemuarm-jessie.conf | 2 +-
meta-isar/conf/multiconfig/qemuarm-stretch.conf | 3 ++-
meta-isar/conf/multiconfig/qemuarm-wheezy.conf | 2 +-
meta-isar/conf/multiconfig/qemui386-jessie.conf | 2 +-
meta-isar/conf/multiconfig/qemui386-stretch.conf | 3 ++-
meta-isar/conf/multiconfig/rpi-jessie.conf | 3 ++-
meta-isar/recipes-core/images/isar-image-base.bb | 8 ++++++--
meta-isar/recipes-kernel/linux/linux-debian.bb | 12 ++++++++++++
10 files changed, 30 insertions(+), 10 deletions(-)
create mode 100644 meta-isar/recipes-kernel/linux/linux-debian.bb
diff --git a/meta-isar/conf/multiconfig/qemuamd64-jessie.conf b/meta-isar/conf/multiconfig/qemuamd64-jessie.conf
index 51d39b6..e49751f 100644
--- a/meta-isar/conf/multiconfig/qemuamd64-jessie.conf
+++ b/meta-isar/conf/multiconfig/qemuamd64-jessie.conf
@@ -6,7 +6,7 @@ MACHINE ?= "qemuamd64"
DISTRO ?= "debian-jessie"
DISTRO_ARCH ?= "amd64"
-IMAGE_PREINSTALL += "linux-image-amd64"
+DEBIAN_KERNEL ?= "linux-image-amd64"
ROOTFS_DEV ?= "sda"
diff --git a/meta-isar/conf/multiconfig/qemuamd64-stretch.conf b/meta-isar/conf/multiconfig/qemuamd64-stretch.conf
index c59876a..f3dcd3a 100644
--- a/meta-isar/conf/multiconfig/qemuamd64-stretch.conf
+++ b/meta-isar/conf/multiconfig/qemuamd64-stretch.conf
@@ -8,9 +8,10 @@ DISTRO_ARCH ?= "amd64"
IMAGE_PREINSTALL += " \
init \
- linux-image-amd64 \
"
+DEBIAN_KERNEL ?= "linux-image-amd64"
+
ROOTFS_DEV ?= "sda"
QEMU_ARCH ?= "x86_64"
diff --git a/meta-isar/conf/multiconfig/qemuarm-jessie.conf b/meta-isar/conf/multiconfig/qemuarm-jessie.conf
index ed84c6c..50a27f5 100644
--- a/meta-isar/conf/multiconfig/qemuarm-jessie.conf
+++ b/meta-isar/conf/multiconfig/qemuarm-jessie.conf
@@ -13,7 +13,7 @@ MACHINE ?= "qemuarm"
DISTRO ?= "debian-jessie"
DISTRO_ARCH ?= "armhf"
-IMAGE_PREINSTALL += "linux-image-armmp"
+DEBIAN_KERNEL ?= "linux-image-armmp"
ROOTFS_DEV ?= "vda"
diff --git a/meta-isar/conf/multiconfig/qemuarm-stretch.conf b/meta-isar/conf/multiconfig/qemuarm-stretch.conf
index 1cce97a..9b99fb0 100644
--- a/meta-isar/conf/multiconfig/qemuarm-stretch.conf
+++ b/meta-isar/conf/multiconfig/qemuarm-stretch.conf
@@ -8,9 +8,10 @@ DISTRO_ARCH ?= "armhf"
IMAGE_PREINSTALL += " \
init \
- linux-image-armmp \
"
+DEBIAN_KERNEL ?= "linux-image-armmp"
+
ROOTFS_DEV ?= "vda"
QEMU_ARCH ?= "arm"
diff --git a/meta-isar/conf/multiconfig/qemuarm-wheezy.conf b/meta-isar/conf/multiconfig/qemuarm-wheezy.conf
index 38ea191..ab163a2 100644
--- a/meta-isar/conf/multiconfig/qemuarm-wheezy.conf
+++ b/meta-isar/conf/multiconfig/qemuarm-wheezy.conf
@@ -13,7 +13,7 @@ MACHINE ?= "qemuarm"
DISTRO ?= "debian-wheezy"
DISTRO_ARCH ?= "armhf"
-IMAGE_PREINSTALL += "linux-image-vexpress"
+DEBIAN_KERNEL ?= "linux-image-vexpress"
ROOTFS_DEV ?= "mmcblk0"
diff --git a/meta-isar/conf/multiconfig/qemui386-jessie.conf b/meta-isar/conf/multiconfig/qemui386-jessie.conf
index d589661..e3df61d 100644
--- a/meta-isar/conf/multiconfig/qemui386-jessie.conf
+++ b/meta-isar/conf/multiconfig/qemui386-jessie.conf
@@ -6,7 +6,7 @@ MACHINE ?= "qemui386"
DISTRO ?= "debian-jessie"
DISTRO_ARCH ?= "i386"
-IMAGE_PREINSTALL += "linux-image-686-pae"
+DEBIAN_KERNEL ?= "linux-image-686-pae"
ROOTFS_DEV ?= "sda"
diff --git a/meta-isar/conf/multiconfig/qemui386-stretch.conf b/meta-isar/conf/multiconfig/qemui386-stretch.conf
index 40239e4..344783e 100644
--- a/meta-isar/conf/multiconfig/qemui386-stretch.conf
+++ b/meta-isar/conf/multiconfig/qemui386-stretch.conf
@@ -8,9 +8,10 @@ DISTRO_ARCH ?= "i386"
IMAGE_PREINSTALL += " \
init \
- linux-image-686-pae \
"
+DEBIAN_KERNEL ?= "linux-image-686-pae"
+
ROOTFS_DEV ?= "sda"
QEMU_ARCH ?= "i386"
diff --git a/meta-isar/conf/multiconfig/rpi-jessie.conf b/meta-isar/conf/multiconfig/rpi-jessie.conf
index d1dd9d9..cfbeb3a 100644
--- a/meta-isar/conf/multiconfig/rpi-jessie.conf
+++ b/meta-isar/conf/multiconfig/rpi-jessie.conf
@@ -19,7 +19,6 @@ IMAGE_PREINSTALL += " \
iproute2 \
iputils-ping \
isc-dhcp-client \
- linux-image-rpi-rpfv \
lrzsz \
net-tools \
netcat-openbsd \
@@ -31,4 +30,6 @@ IMAGE_PREINSTALL += " \
vim \
"
+DEBIAN_KERNEL ?= "linux-image-rpi-rpfv"
+
ROOTFS_DEV ?= "mmcblk0p2"
diff --git a/meta-isar/recipes-core/images/isar-image-base.bb b/meta-isar/recipes-core/images/isar-image-base.bb
index e359ac3..d845857 100644
--- a/meta-isar/recipes-core/images/isar-image-base.bb
+++ b/meta-isar/recipes-core/images/isar-image-base.bb
@@ -18,11 +18,15 @@ PV = "1.0"
inherit image
-DEPENDS += "${IMAGE_INSTALL}"
+PREFERRED_PROVIDER_virtual/kernel ?= "linux-debian"
+
+DEPENDS += "${IMAGE_INSTALL} \
+ virtual/kernel"
IMAGE_PREINSTALL += "apt \
dbus \
- localepurge"
+ localepurge \
+ ${@d.getVar("PREFERRED_PROVIDER_virtual/kernel", True)}"
WORKDIR = "${TMPDIR}/work/${DISTRO}-${DISTRO_ARCH}/${PN}"
diff --git a/meta-isar/recipes-kernel/linux/linux-debian.bb b/meta-isar/recipes-kernel/linux/linux-debian.bb
new file mode 100644
index 0000000..21d20c2
--- /dev/null
+++ b/meta-isar/recipes-kernel/linux/linux-debian.bb
@@ -0,0 +1,12 @@
+# Debian kernel pseudo package
+#
+# This software is a part of ISAR.
+# Copyright (c) Siemens AG, 2018
+
+DESCRIPTION = "Prebuilt Debian kernel"
+MAINTAINER = "ISAR project"
+PROVIDES = "virtual/kernel"
+
+DEBIAN_DEPENDS = "${DEBIAN_KERNEL}"
+
+inherit dpkg-raw
--
2.13.6
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