kernel: create base recipe for Wind River Linux kernel building

This base recipe implements support for building a git based
Wind River Linux kernel repository.

There are several restrictions in this first import:

  - no patching (needs guilt)
  - missing Wind River features (config audit, etc)

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>

1 files changed, 82 insertions, 0 deletions

diff --git a/meta/packages/linux/linux-wrs_git.bb b/meta/packages/linux/linux-wrs_git.bb
new file mode 100644
index 0000000000..a4bdcab5d7
--- /dev/null
+++ b/meta/packages/linux/linux-wrs_git.bb
@@ -0,0 +1,82 @@
+DESCRIPTION = "Wind River Kernel"
+SECTION = "kernel"
+LICENSE = "GPL"
+
+# Set this to 'preempt_rt' in the local.conf if you want a real time kernel
+LINUX_KERNEL_TYPE ?= standard
+DEPENDS = "kern-tools-native"
+PV = "2.6.34+git${SRCPV}"
+
+# To use a staged, on-disk bare clone of a Wind River Kernel, use a 
+# variant of the below
+# SRC_URI = "git://///path/to/kernel/default_kernel.git;fullclone=1"
+SRC_URI = "git://git.pokylinux.org/linux-2.6-windriver.git;protocol=git;fullclone=1;branch=${WRMACHINE}-${LINUX_KERNEL_TYPE}"
+
+
+WRMACHINE = "${MACHINE}
+WRMACHINE_qemux86  = "common_pc"
+WRMACHINE_qemuppc  = "qemu_ppc32"
+WRMACHINE_qemumips = "mti_malta32_be"
+WRMACHINE_qemuarm  = "arm_versatile_926ejs"
+
+LINUX_VERSION=v2.6.34
+LINUX_VERSION_EXTENSION="-wr-${LINUX_KERNEL_TYPE}"
+PR = r1
+PV = "2.6.34+${PR}+git${SRCREV}"
+
+S = "${WORKDIR}/linux"
+B = "${WORKDIR}/linux-${WRMACHINE}-${LINUX_KERNEL_TYPE}-build"
+
+do_patch() {
+    echo "[INFO] Patching is currently not supported"
+}
+
+do_wrlinux_checkout() {
+        if [ -d ${WORKDIR}/.git/refs/remotes/origin ]; then
+                echo "Fixing up git directory for ${WRMACHINE}-${LINUX_KERNEL_TYPE}"
+                rm -rf ${S}
+                mkdir ${S}
+                mv ${WORKDIR}/.git ${S}
+                mv ${S}/.git/refs/remotes/origin/* ${S}/.git/refs/heads
+                rmdir ${S}/.git/refs/remotes/origin
+        fi
+        cd ${S}
+        git checkout -f ${WRMACHINE}-${LINUX_KERNEL_TYPE}
+}
+
+addtask wrlinux_checkout before do_patch after do_unpack
+
+do_wrlinux_configme() {
+        echo "Doing wrlinux configme"
+        rm -rf ${B}
+        cd ${S}
+        configme
+        echo "# CONFIG_WRNOTE is not set" >> ${B}/.config
+        echo "# Global settings from linux recipe" >> ${B}/.config
+        echo "CONFIG_LOCALVERSION="\"${LINUX_VERSION_EXTENSION}\" >> ${B}/.config
+}
+
+do_wrlinux_configcheck() {
+        echo "[INFO] validating kernel configuration"
+        cd ${B}/..
+        kconf_check ${B}/.config ${B} ${S} ${B} ${LINUX_VERSION} ${WRMACHINE}-${LINUX_KERNEL_TYPE}
+}
+
+do_wrlinux_link_vmlinux() {
+        if [ -n "${KERNEL_IMAGETYPE_LINK}" ]; then
+                cd ${B}/arch/${ARCH}/boot
+                ln -sf ../../../${KERNEL_IMAGETYPE_LINK}
+        fi
+}
+
+do_wrlinux_configme[depends] = "kern-tools-native:do_populate_sysroot"
+addtask wrlinux_configme before do_configure after do_patch
+addtask wrlinux_link_vmlinux after do_compile before do_install
+
+# XXX 
+#addtask wrlinux_configcheck after do_configure before do_compile
+
+inherit kernel
+
+# object files are in B, not S, so we need to override this
+do_deploy[dirs] = "${B}"