From 35665d96131a41adc73cd9149f0d21d23e796714 Mon Sep 17 00:00:00 2001 From: Paul Eggleton Date: Wed, 2 Dec 2015 12:54:08 +1300 Subject: classes/kernel: check OLDEST_KERNEL at configure time If the kernel being built is older than OLDEST_KERNEL and we're building with glibc, then the C library we're building is probably not going to be compatible with the kernel and we should warn the user. (This is easier to do here rather than when building glibc, because we don't necessarily have the information we need to determine the kernel version there, whereas we do here.) Fixes [YOCTO #8653]. Signed-off-by: Paul Eggleton --- meta/classes/kernel.bbclass | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass index fa0864c275..af88cc0c61 100644 --- a/meta/classes/kernel.bbclass +++ b/meta/classes/kernel.bbclass @@ -330,6 +330,20 @@ sysroot_stage_all () { KERNEL_CONFIG_COMMAND ?= "oe_runmake_call -C ${S} O=${B} oldnoconfig || yes '' | oe_runmake -C ${S} O=${B} oldconfig" +python check_oldest_kernel() { + oldest_kernel = d.getVar('OLDEST_KERNEL', True) + kernel_version = d.getVar('KERNEL_VERSION', True) + tclibc = d.getVar('TCLIBC', True) + if tclibc == 'glibc': + kernel_version = kernel_version.split('-', 1)[0] + if oldest_kernel and kernel_version: + if bb.utils.vercmp_string(kernel_version, oldest_kernel) < 0: + bb.warn('%s: OLDEST_KERNEL is "%s" but the version of the kernel you are building is "%s" - therefore %s as built may not be compatible with this kernel. Either set OLDEST_KERNEL to an older version, or build a newer kernel.' % (d.getVar('PN', True), oldest_kernel, kernel_version, tclibc)) +} + +check_oldest_kernel[vardepsexclude] += "OLDEST_KERNEL KERNEL_VERSION" +do_configure[prefuncs] += "check_oldest_kernel" + kernel_do_configure() { # fixes extra + in /lib/modules/2.6.37+ # $ scripts/setlocalversion . => + -- cgit 1.2.3-korg