10457 2016-10-19 15:54:56 +0000 ppp: 4.8 kernel fix breaks builds with older external toolchains 2017-12-04 02:01:27 +0000 1 1 7 Build System, Metadata & Runtime OE-Core connectivity unspecified x86 Multiple RESOLVED FIXED Medium normal Future 1 kergoth yi.zhao jackie.huang meta.mr.watcher meta.watcher pokylinux randy.macleod yi.zhao --- --- No (bug/feature does not impact docs) oldest_to_newest 67369 0 kergoth 2016-10-19 15:54:56 +0000 A patch is applied to fix builds with 4.8 kernels (specifically, 4.8 linux-libc-headers, as it doesn't use actual kernel headers), but doing so breaks builds with older linux-libc-headers. This isn't an issue for internal toolchain builds, as we only keep around a single linux-libc-headers version, but the external toolchain has its own, and I haven't seen any updated to 4.8 yet, so this effectively breaks ppp builds for all current external toolchains. It'd be nice if we could find a fix that worked for kernels earlier and later than 4.8 both, so we don't have to decide whether to revert the patch in meta-sourcery based on the particulars of the external toolchain in use. 67380 1 kergoth 2016-10-19 18:24:33 +0000 Updated the meta-sourcery workaround to grab the kernel version from the external toolchain sysroot and remove the patch based on that, so this is low priority. 68325 2 pokylinux 2016-11-15 16:28:02 +0000 It does not only break it for external toolchains, but also if you set LINUXLIBCVERSION to something < 4.8 for internal toolchains with morty. I took your ppp_2.4.7.bbappend, hacked it a bit and added it to my meta layer so it works now with an internal toolchain, but a LINUXLIBCVERSION before 4.4 as well: KERNEL_48_PATCH = "file://ppp-fix-building-with-linux-4.8.patch" SRC_URI_remove := "${@'${KERNEL_48_PATCH}' if [int(i) for i in ('${LINUXLIBCVERSION}'.replace('%', '') or '0.0').split('.')] < [4, 8] else ''}" 68326 3 pokylinux 2016-11-15 16:29:19 +0000 should be but a LINUXLIBCVERSION before 4.8 as well: 71157 4 dengke.du 2017-03-09 02:57:21 +0000 (In reply to comment #2) > It does not only break it for external toolchains, but also if you set > LINUXLIBCVERSION to something < 4.8 for internal toolchains with morty. > > I took your ppp_2.4.7.bbappend, hacked it a bit and added it to my meta > layer so it works now with an internal toolchain, but a LINUXLIBCVERSION > before 4.4 as well: > > KERNEL_48_PATCH = "file://ppp-fix-building-with-linux-4.8.patch" > SRC_URI_remove := "${@'${KERNEL_48_PATCH}' if [int(i) for i in > ('${LINUXLIBCVERSION}'.replace('%', '') or '0.0').split('.')] < [4, 8] else > ''}" So we specify the patch to the kernel 4.8 can solve the problem. 73213 5 pokylinux 2017-05-11 18:16:02 +0000 This patch should only be applied when a 4.8 (or maybe newer) kernel is used and certainly makes a problem for 4.4 kernels. 78483 6 yi.zhao 2017-12-04 02:01:27 +0000 Fixed in: morty: http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?h=morty&id=97d7e4ca751e6010da97e7f082dd13230fe3ef10 master: http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=6ee124905f5241ea2b96822111a08e1463d319d2