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Jeremy Cline 2877cca02d Disable CONFIG_DRM_DP_CEC temporarily
This setting introduces a dependency in drm_kms_helpers.ko on cec.ko but
cec.ko is in the media subsystem and is filtered into kernel-modules,
but drm_kms_helpers.ko is in kernel-core. There's not an easy way to
pick up cec.ko for kernel-core to satisfy the module dependency in the
current filtering scripts so I'm turning this off until the script can
be adjusted to make this easier.

When flipping this back on, CONFIG_CEC_CORE also needs to be turned on.
2020-02-04 13:51:30 -05:00
configs Disable CONFIG_DRM_DP_CEC temporarily 2020-02-04 13:51:30 -05:00
scripts Delete a few more scripts 2019-12-02 14:20:39 -05:00
tests Fix existing CI test for memfd_create() 2019-11-11 14:06:01 -05:00
.gitignore Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
0001-Drop-that-for-now.patch Linux v5.0-10742-gea295481b6e3 2019-03-12 15:02:18 +00:00
0001-Make-get_cert_list-not-complain-about-cert-lists-tha.patch Updates for secure boot 2019-01-07 15:09:43 -06:00
0001-mm-kmemleak-skip-late_init-if-not-skip-disable.patch Linux v5.4-rc1 2019-10-02 14:34:08 +00:00
0001-x86-Don-t-declare-__force_order-in-kaslr_64.c.patch gcc 10 fixes, changelog trim 2020-01-27 11:36:29 -06:00
0002-Add-efi_status_to_str-and-rework-efi_status_to_err.patch Linux v5.3-13236-g97f9a3c4eee5 2019-10-01 14:20:23 +00:00
0003-Make-get_cert_list-use-efi_status_to_str-to-print-er.patch Updates for secure boot 2019-01-07 15:09:43 -06:00
ACPI-irq-Workaround-firmware-issue-on-X-Gene-based-m400.patch Work around firmware issue on X-Gene based m400 (rhbz 1574718) 2018-05-10 09:43:52 -04:00
ACPI-scan-Fix-regression-related-to-X-Gene-UARTs.patch Linux v4.18-2978-g1eb46908b35d 2018-08-15 10:58:06 -07:00
arm64-Add-option-of-13-for-FORCE_MAX_ZONEORDER.patch Enable sound SoC on aarch64, Update some ARM patches to latest upstream, small cleanups 2017-04-26 11:33:46 +01:00
arm64-pinctrl-bcm2835-Add-support-for-all-BCM2711-GPIOs.patch Add support for all bcm2711 GPIOs 2020-02-02 18:48:28 +00:00
arm64-tegra-jetson-tx1-fixes.patch Upstream fix for WP detection on SD card 2019-08-29 18:01:39 +01:00
arm64-tegra-Jetson-TX2-Allow-bootloader-to-configure.patch fix mac on Jetson-TX2 NIC 2019-08-04 15:31:08 +01:00
ARM-fix-__get_user_check-in-case-uaccess_-calls-are-not-inlined.patch fix booting on ARMv7 due to OPTIMIZE_INLINING now being forced, drop old i.MX MMC patch, fix for UFEI on ARMv7 on some devices 2019-10-15 08:57:19 +01:00
arm-make-highpte-not-expert.patch Bug 1576593 - work around while vendor investigates arm builder LPAE HW issue 2019-07-19 18:51:33 +01:00
ARM-tegra-usb-no-reset.patch Linux v4.1-11235-gc63f887bdae8 2015-06-29 11:24:25 -04:00
bcm283x-gpu-drm-v3d-Add-ARCH_BCM2835-to-DRM_V3D-Kconfig.patch add patch to enable v3d on aarch64 2019-12-18 09:36:10 +00:00
build_configs.sh configs: Create symlinks to used scripts 2017-11-13 09:39:16 -08:00
check-kabi Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
config_generation configs: Create symlinks to used scripts 2017-11-13 09:39:16 -08:00
cpupower.config Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
cpupower.service Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
efi-secureboot.patch Linux v5.5-3996-gb3a608222336 2020-01-29 12:22:59 -05:00
filter-aarch64.sh Cleanup some old config options, remove DRM drivers hidden behind DRM_LEGACY, tweak module filters a little (fpga, iio, few other bits), minor find optimisation 2018-08-16 20:01:58 +01:00
filter-aarch64.sh.fedora Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
filter-aarch64.sh.rhel Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
filter-armv7hl.sh armvt: filter stm drm drivers 2019-05-09 17:11:56 +01:00
filter-armv7hl.sh.fedora Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
filter-armv7hl.sh.rhel Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
filter-i686.sh Add hid-asus for i686 too 2018-11-05 11:48:37 -06:00
filter-i686.sh.fedora Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
filter-i686.sh.rhel Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
filter-modules.sh Updates for hid-asus 2018-11-03 08:23:31 -05:00
filter-modules.sh.fedora Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
filter-modules.sh.rhel Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
filter-ppc64le.sh Cleanup some old config options, remove DRM drivers hidden behind DRM_LEGACY, tweak module filters a little (fpga, iio, few other bits), minor find optimisation 2018-08-16 20:01:58 +01:00
filter-ppc64le.sh.fedora Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
filter-ppc64le.sh.rhel Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
filter-s390x.sh Rename kernel-drivers to kernel-modules 2014-05-01 21:10:48 -04:00
filter-s390x.sh.fedora Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
filter-s390x.sh.rhel Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
filter-x86_64.sh Rename kernel-drivers to kernel-modules 2014-05-01 21:10:48 -04:00
filter-x86_64.sh.fedora Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
filter-x86_64.sh.rhel Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
generate_all_configs.sh Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
generate_bls_conf.sh Drop the id field from generated BLS snippets 2018-07-12 12:58:27 -04:00
generate_debug_configs.sh Change method of configuration generation 2016-12-06 12:07:10 -08:00
gitrev Linux v5.5-8686-g14cd0bd04907 2020-02-03 11:38:06 -05:00
input-rmi4-remove-the-need-for-artifical-IRQ.patch Linux v4.18-rc2-132-gf57494321cbf 2018-06-28 08:34:35 -07:00
kernel-aarch64-debug-fedora.config Disable CONFIG_DRM_DP_CEC temporarily 2020-02-04 13:51:30 -05:00
kernel-aarch64-debug-rhel.config Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
kernel-aarch64-fedora.config Disable CONFIG_DRM_DP_CEC temporarily 2020-02-04 13:51:30 -05:00
kernel-aarch64-rhel.config Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
kernel-armv7hl-debug-fedora.config Disable CONFIG_DRM_DP_CEC temporarily 2020-02-04 13:51:30 -05:00
kernel-armv7hl-fedora.config Disable CONFIG_DRM_DP_CEC temporarily 2020-02-04 13:51:30 -05:00
kernel-armv7hl-lpae-debug-fedora.config Disable CONFIG_DRM_DP_CEC temporarily 2020-02-04 13:51:30 -05:00
kernel-armv7hl-lpae-fedora.config Disable CONFIG_DRM_DP_CEC temporarily 2020-02-04 13:51:30 -05:00
kernel-i686-debug-fedora.config Disable CONFIG_DRM_DP_CEC temporarily 2020-02-04 13:51:30 -05:00
kernel-i686-fedora.config Disable CONFIG_DRM_DP_CEC temporarily 2020-02-04 13:51:30 -05:00
kernel-local Change method of configuration generation 2016-12-06 12:07:10 -08:00
kernel-ppc64le-debug-fedora.config Disable CONFIG_DRM_DP_CEC temporarily 2020-02-04 13:51:30 -05:00
kernel-ppc64le-debug-rhel.config Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
kernel-ppc64le-fedora.config Disable CONFIG_DRM_DP_CEC temporarily 2020-02-04 13:51:30 -05:00
kernel-ppc64le-rhel.config Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
kernel-s390x-debug-fedora.config Disable CONFIG_DRM_DP_CEC temporarily 2020-02-04 13:51:30 -05:00
kernel-s390x-debug-rhel.config Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
kernel-s390x-fedora.config Disable CONFIG_DRM_DP_CEC temporarily 2020-02-04 13:51:30 -05:00
kernel-s390x-rhel.config Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
kernel-s390x-zfcpdump-rhel.config Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
kernel-x86_64-debug-fedora.config Disable CONFIG_DRM_DP_CEC temporarily 2020-02-04 13:51:30 -05:00
kernel-x86_64-debug-rhel.config Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
kernel-x86_64-fedora.config Disable CONFIG_DRM_DP_CEC temporarily 2020-02-04 13:51:30 -05:00
kernel-x86_64-rhel.config Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
kernel.spec fix for firmware recovery on certain RPi4 HW revs 2020-02-04 12:26:55 +00:00
KEYS-Make-use-of-platform-keyring-for-module-signature.patch Linux v5.3-13236-g97f9a3c4eee5 2019-10-01 14:20:23 +00:00
lift-lockdown-sysrq.patch Rebase the lockdown sysrq patch to work with upstream 2019-10-02 20:11:04 +00:00
Makefile Change method of configuration generation 2016-12-06 12:07:10 -08:00
media-rc-prevent-memory-leak-in-cx23888_ir_probe.patch Fix a bunch of CVEs 2019-11-21 14:25:24 -06:00
merge.pl configs: Create symlinks to used scripts 2017-11-13 09:39:16 -08:00
mod-extra-blacklist.sh Add mod-internal package 2019-10-29 15:28:51 -04:00
mod-extra.list Remove some old modalias adjustments and move drivers 2019-09-16 10:50:13 -04:00
mod-extra.list.fedora Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
mod-extra.list.rhel Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
mod-extra.sh Add mod-internal package 2019-10-29 15:28:51 -04:00
mod-internal.list Add mod-internal package 2019-10-29 15:28:51 -04:00
mod-sign.sh Clean up and parallelize mod-sign.sh 2019-12-02 14:34:55 -05:00
Module.kabi_aarch64 Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
Module.kabi_dup_aarch64 Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
Module.kabi_dup_ppc64le Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
Module.kabi_dup_s390x Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
Module.kabi_dup_x86_64 Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
Module.kabi_ppc64le Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
Module.kabi_s390x Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
Module.kabi_x86_64 Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
mwifiex-fix-possible-heap-overflow-in-mwifiex_process_country_ie.patch Fix a number of CVEs 2019-11-25 10:19:55 -06:00
parallel_xz.sh Better xz compression 2019-11-13 10:01:45 -05:00
process_configs.sh configs: Update scripts and spec file with layout changes 2017-11-13 09:39:17 -08:00
Raspberry-Pi-4-PCIe-support.patch Linux v5.5-8686-g14cd0bd04907 2020-02-03 11:38:06 -05:00
README.txt Spelling and minor readme fixes 2018-10-23 16:31:51 +01:00
rebase-notes.txt add note for ISDN revert commit, update configs 2019-07-25 09:35:21 +01:00
redhatsecureboot003.cer Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
redhatsecurebootca2.cer Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
s390-Lock-down-the-kernel-when-the-IPL-secure-flag-i.patch Pull in the s390 auto-lockdown patch 2020-01-13 10:05:40 -05:00
secureboot_ppc.cer Fixup missing keys 2019-11-25 13:53:03 -05:00
secureboot_s390.cer Fixup missing keys 2019-11-25 13:53:03 -05:00
secureboot.cer Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
securebootca.cer Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
sources Linux v5.5-8686-g14cd0bd04907 2020-02-03 11:38:06 -05:00
update_scripts.sh Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
usb-xhci-Raspberry-Pi-FW-loader-for-VIA-VL805.patch fix for firmware recovery on certain RPi4 HW revs 2020-02-04 12:26:55 +00:00
x509.genkey Switch to using modsign-post-KS upstream with x509 certs 2012-09-25 13:22:04 -04:00
x509.genkey.fedora Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00
x509.genkey.rhel Sync up on adding a bunch of files 2019-11-13 10:01:45 -05:00

		Kernel package tips & tricks.
		~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The kernel is one of the more complicated packages in the distro, and
for the newcomer, some of the voodoo in the spec file can be somewhat scary.
This file attempts to document some of the magic.


Speeding up make prep
---------------------
The kernel is nearly 500MB of source code, and as such, 'make prep'
takes a while. The spec file employs some trickery so that repeated
invocations of make prep don't take as long.  Ordinarily the %prep
phase of a package will delete the tree it is about to untar/patch.
The kernel %prep keeps around an unpatched version of the tree,
and makes a symlink tree clone of that clean tree and than applies
the patches listed in the spec to the symlink tree.
This makes a huge difference if you're doing multiple make preps a day.
As an added bonus, doing a diff between the clean tree and the symlink
tree is slightly faster than it would be doing two proper copies of the tree.


Build logs.
-----------
There's a convenience helper script in scripts/grab-logs.sh
that will grab the build logs from koji for the kernel version reported
by make verrel


Config hierarchy.
-----------------
Instead of having to maintain a config file for every arch variant we build on,
the kernel spec uses a nested system of configs. Each option CONFIG_FOO is
represented by a single file named CONFIG_FOO which contains the state (=y, =m,
=n). These options are collected in the folder base-generic. Architecture
specific options are set in nested folders. An option set in a nested folder
will override the same option set in one of the higher levels.

The individual CONFIG_FOO files only exist in the pkg-git repository. The RPM
contains kernel-foo.config files which are the result of combining all the
CONFIG_FOO files. The files are combined by running build_configs.sh. This
script _must_ be run each time one of the options is changed.

Example flow:

# Enable the option CONFIG_ABC123 as a module for all arches
echo "CONFIG_ABC123=m" > configs/base-generic/CONFIG_ABC1234
# enable the option CONFIG_XYZ321 for only x86
echo "# CONFIG_XYZ321 is not set" > configs/base-generic/CONFIG_XYZ321
echo "CONFIG_XYZ321=m" > configs/base-generic/x86/CONFIG_XYZ321
# regenerate the combined config files
./build_configs.sh

The file config_generation gives a listing of what folders go into each
config file generated.

Debug options.
--------------
This is a little complicated, as the purpose & meaning of this changes
depending on where we are in the release cycle.
If we are building for a current stable release, 'make release' has
typically been run already, which sets up the following..
- Two builds occur, a 'kernel' and a 'kernel-debug' flavor.
- kernel-debug will get various heavyweight debugging options like
  lockdep etc turned on.

If we are building for rawhide, 'make debug' has been run, which changes
the status quo to:
- We only build one kernel 'kernel'
- The debug options are always turned on.
This is done to increase coverage testing, as not many people actually
run kernel-debug.

The debug options are managed in a separate heierarchy under base-debug. This
works in a similar manner to base-generic. More deeply nested folders, again,
override options. The file config_generation gives a listing of what folders
go into each config file generated.