Re: [yocto] QEMU kernel defconfigs
On Thu, Nov 15, 2018 at 12:08 PM Bruce Ashfield < bruce.ashfi...@windriver.com> wrote: > On 2018-11-15 12:29 p.m., Jon Mason wrote: > > I'm having difficulty determining where the kernel defconfigs are > > defined and located. I'm specifically looking for the qemuarm and > > qemuarm64 kernel defconfigs. I've looked at the relevant > > documentation, > https://www.yoctoproject.org/docs/2.5.1/kernel-dev/kernel-dev.html#using-an-in-tree-defconfig-file > > and > > no SRC_URI with defconfig or KBUILD_DEFCONFIG_KMACHINE defined in > > meta/recipes-kernel/linux/linux-yocto_4.18.bb > > > > What am I missing? > > The reference machines with linux-yocto don't use defconfigs at all. > They are fully assembled from the configuration fragments in the > kernel-cache repo. > > You'll see the location of the kernel-cache, and the routines that > gather up the fragments in the linux-yocto* recipes. > > The kernel development manual has that detail as well: > > > https://www.yoctoproject.org/docs/2.5.1/kernel-dev/kernel-dev.html#kernel-dev-advanced > > Bruce > > > > > Also, "A defconfig file is simply a .config renamed to "defconfig"." > > is not correct. A properly created defconfig is created by `make > > savedefconfig` and is a minimal file which only has the delta between > > the desired config and defaults from the Kconfig files. > > > https://www.yoctoproject.org/docs/2.5.1/kernel-dev/kernel-dev.html#creating-a-defconfig-file > > > > Thanks, > > Jon > Jon - see https://www.yoctoproject.org/docs/2.5.1/kernel-dev/kernel-dev.html#creating-a-defconfig-file for some re-phrasing. > > > -- > ___ > yocto mailing list > yocto@yoctoproject.org > https://lists.yoctoproject.org/listinfo/yocto > -- ___ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
Re: [yocto] QEMU kernel defconfigs
On 2018-11-15 12:29 p.m., Jon Mason wrote: I'm having difficulty determining where the kernel defconfigs are defined and located. I'm specifically looking for the qemuarm and qemuarm64 kernel defconfigs. I've looked at the relevant documentation, https://www.yoctoproject.org/docs/2.5.1/kernel-dev/kernel-dev.html#using-an-in-tree-defconfig-file and no SRC_URI with defconfig or KBUILD_DEFCONFIG_KMACHINE defined in meta/recipes-kernel/linux/linux-yocto_4.18.bb What am I missing? The reference machines with linux-yocto don't use defconfigs at all. They are fully assembled from the configuration fragments in the kernel-cache repo. You'll see the location of the kernel-cache, and the routines that gather up the fragments in the linux-yocto* recipes. The kernel development manual has that detail as well: https://www.yoctoproject.org/docs/2.5.1/kernel-dev/kernel-dev.html#kernel-dev-advanced Bruce Also, "A defconfig file is simply a .config renamed to "defconfig"." is not correct. A properly created defconfig is created by `make savedefconfig` and is a minimal file which only has the delta between the desired config and defaults from the Kconfig files. https://www.yoctoproject.org/docs/2.5.1/kernel-dev/kernel-dev.html#creating-a-defconfig-file Thanks, Jon -- ___ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
[yocto] QEMU kernel defconfigs
I'm having difficulty determining where the kernel defconfigs are defined and located. I'm specifically looking for the qemuarm and qemuarm64 kernel defconfigs. I've looked at the relevant documentation, https://www.yoctoproject.org/docs/2.5.1/kernel-dev/kernel-dev.html#using-an-in-tree-defconfig-file and no SRC_URI with defconfig or KBUILD_DEFCONFIG_KMACHINE defined in meta/recipes-kernel/linux/linux-yocto_4.18.bb What am I missing? Also, "A defconfig file is simply a .config renamed to "defconfig"." is not correct. A properly created defconfig is created by `make savedefconfig` and is a minimal file which only has the delta between the desired config and defaults from the Kconfig files. https://www.yoctoproject.org/docs/2.5.1/kernel-dev/kernel-dev.html#creating-a-defconfig-file Thanks, Jon -- ___ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
