1 files changed, 75 insertions, 0 deletions
diff --git a/yocto-poky/meta/recipes-kernel/linux-libc-headers/linux-libc-headers.inc b/yocto-poky/meta/recipes-kernel/linux-libc-headers/linux-libc-headers.inc
new file mode 100644
index 000000000..566bc1e61
--- /dev/null
+++ b/yocto-poky/meta/recipes-kernel/linux-libc-headers/linux-libc-headers.inc
@@ -0,0 +1,75 @@
+SUMMARY = "Sanitized set of kernel headers for the C library's use"
+SECTION = "devel"
+LICENSE = "GPLv2"
+
+#########################################################################
+####                        PLEASE READ 
+#########################################################################
+#
+# You're probably looking here thinking you need to create some new copy
+# of linux-libc-headers since you have your own custom kernel. To put 
+# this simply, you DO NOT.
+#
+# Why? These headers are used to build the libc. If you customise the 
+# headers you are customising the libc and the libc becomes machine
+# specific. Most people do not add custom libc extensions to the kernel
+# and have a machine specific libc.
+#
+# But you have some kernel headers you need for some driver? That is fine
+# but get them from STAGING_KERNEL_DIR where the kernel installs itself.
+# This will make the package using them machine specific but this is much
+# better than having a machine specific C library. This does mean your 
+# recipe needs a DEPENDS += "virtual/kernel" but again, that is fine and
+# makes total sense.
+#
+# There can also be a case where your kernel extremely old and you want
+# an older libc ABI for that old kernel. The headers installed by this
+# recipe should still be a standard mainline kernel, not your own custom 
+# one.
+#
+# -- RP
+
+LIC_FILES_CHKSUM = "file://COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7"
+
+python __anonymous () {
+    major = d.getVar("PV",True).split('.')[0]
+    if major == "3":
+        d.setVar("HEADER_FETCH_VER", "3.0")
+    elif major == "4":
+        d.setVar("HEADER_FETCH_VER", "4.x")
+    else:
+        d.setVar("HEADER_FETCH_VER", "2.6")
+}
+
+inherit kernel-arch
+
+KORG_ARCHIVE_COMPRESSION ?= "bz2"
+
+SRC_URI = "${KERNELORG_MIRROR}/linux/kernel/v${HEADER_FETCH_VER}/linux-${PV}.tar.${KORG_ARCHIVE_COMPRESSION}"
+
+S = "${WORKDIR}/linux-${PV}"
+
+do_configure() {
+	oe_runmake allnoconfig
+}
+
+do_compile () {
+}
+
+do_install() {
+	oe_runmake headers_install INSTALL_HDR_PATH=${D}${exec_prefix}
+	# Kernel should not be exporting this header
+	rm -f ${D}${exec_prefix}/include/scsi/scsi.h
+
+	# The ..install.cmd conflicts between various configure runs
+	find ${D}${includedir} -name ..install.cmd | xargs rm -f
+}
+
+BBCLASSEXTEND = "nativesdk"
+
+#DEPENDS = "cross-linkage"
+RDEPENDS_${PN}-dev = ""
+RRECOMMENDS_${PN}-dbg = "${PN}-dev (= ${EXTENDPKGV})"
+
+INHIBIT_DEFAULT_DEPS = "1"
+DEPENDS += "unifdef-native"