The Linux kernel
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2014-07-28 10:14:52 +01:00
scripts generate-git-snapshot.sh: warn if $LINUX_GIT dir is unset 2013-07-18 20:14:24 -04:00
.gitignore update .gitignore for perf-man 2014-06-16 13:33:19 +01:00
0001-acpi-video-Add-4-new-models-to-the-use_native_backli.patch Add use_native_backlight quirk for 4 laptops (rhbz 983342 1093120) 2014-05-01 14:51:32 +02:00
0001-ideapad-laptop-Change-Lenovo-Yoga-2-series-rfkill-ha.patch Add metadata header to 0002-ideapad-laptop-Change-Lenovo-Yoga-2-series-rfkill-ha.patch 2014-06-27 10:41:59 +02:00
0001-lib-cpumask-Make-CPUMASK_OFFSTACK-usable-without-deb.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
acpi-video-Add-use_native_backlight-quirk-for-HP-Pro.patch Use native backlight for HP ProBook 4540s (rhbz 1025690) 2014-06-03 10:15:07 -04:00
acpi-video-Add-use-native-backlight-quirk-for-the-Th.patch Use native backlight for newer laptop models with nvidia and ati GPUs (rhbz 1093171) 2014-06-03 10:14:23 -04:00
arm-beagle.patch Rebase Utilute and BeagleBone patches, Minaor ARM updates 2014-07-11 10:15:42 +01:00
arm-imx6-utilite.patch Rebase Utilute and BeagleBone patches, Minaor ARM updates 2014-07-11 10:15:42 +01:00
arm-tegra-drmdetection.patch Add patch to fix loading of tegra drm using device tree 2014-07-28 10:14:52 +01:00
arm-tegra-usb-no-reset-linux33.patch Patch for disconnect issues with storage attached to a tegra-ehci controller 2012-05-03 20:27:11 +01:00
asus-wmi-Add-a-no-backlight-quirk.patch Add no backlight quirks for various Asus machines (rhbz 1097436) 2014-06-03 10:13:08 -04:00
ath9k_rx_dma_stop_check.patch Add patch to fix ath9k dma stop checks (rhbz 892811) 2013-02-06 10:00:23 -05:00
compile-fixes.patch Rename a bunch of patches. 2013-01-10 14:24:41 -05:00
config-arm64 arm64: update config-arm64 to include PCI support. 2014-07-25 07:54:04 -04:00
config-arm-generic Linux v3.16-rc1 2014-06-16 10:44:42 -04:00
config-armv7 Minor ARMv7 config update 2014-07-21 13:42:30 +01:00
config-armv7-generic further exynos kernel config update, cleanup ARM config excludes to ensure consistency across v7 configs 2014-06-22 16:21:05 +01:00
config-armv7-lpae Minor TI Keystone update 2014-06-23 07:25:04 +01:00
config-debug Linux v3.15-7218-g3f17ea6dea8b 2014-06-11 13:36:24 -04:00
config-generic Linux v3.16-rc6-75-g15ba223 2014-07-22 08:47:17 -05:00
config-i686-PAE Re-enable I2O, but only for 32-bit x86 (#629676) 2010-09-03 05:24:38 -04:00
config-local Add support for local rebuild config option overrides 2011-01-10 17:37:27 -05:00
config-no-extra disable extras on arm 2013-10-03 12:22:16 -04:00
config-nodebug Linux v3.16-rc6-75-g15ba223 2014-07-22 08:47:17 -05:00
config-powerpc32-generic remove last vestiges of ISA config which was obsolete anyway as ISA is disabled 2014-05-05 00:03:56 +01:00
config-powerpc32-smp Minor kernel configs cleanup merging duplicated config opts into generic 2013-08-19 09:37:57 -04:00
config-powerpc64 Linux v3.14-12812-g321d03c86732 2014-04-13 16:50:45 -04:00
config-powerpc64le Linux v3.15-rc7-79-gfe45736f4134 2014-05-30 09:21:04 -04:00
config-powerpc64p7 Linux v3.14-12812-g321d03c86732 2014-04-13 16:50:45 -04:00
config-powerpc-generic Linux v3.14-rc3 2014-02-17 08:36:46 -05:00
config-s390x Linux v3.16-rc2 2014-06-23 10:16:25 -04:00
config-x86_64-generic Linux v3.15-7218-g3f17ea6dea8b 2014-06-11 13:36:24 -04:00
config-x86-32-generic Linux v3.15-9930-g0e04c641b199 2014-06-14 09:09:58 -04:00
config-x86-generic Linux v3.16-rc6-75-g15ba223 2014-07-22 08:47:17 -05:00
cpupower.config Create the kernel-tools package. WHEE 2011-08-17 21:19:57 -04:00
cpupower.service Create the kernel-tools package. WHEE 2011-08-17 21:19:57 -04:00
crash-driver.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
criu-no-expert.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
die-floppy-die.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
disable-i8042-check-on-apple-mac.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
disable-libdw-unwind-on-non-x86.patch Linux v3.15-rc1-113-g6ca2a88ad820 2014-04-18 06:58:29 -04:00
drm-i915-hush-check-crtc-state.patch Update bugzilla and upstream status for i915 hush crtc state patch 2013-11-13 14:58:25 -05:00
drm-radeon-Disable-writeback-by-default-on-ppc.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
eeepc-wmi-Add-no-backlight-quirk-for-Asus-H87I-PLUS-.patch Add no backlight quirks for various Asus machines (rhbz 1097436) 2014-06-03 10:13:08 -04:00
filter-aarch64.sh Rename kernel-drivers to kernel-modules 2014-05-01 21:10:48 -04:00
filter-armv7hl.sh Rename kernel-drivers to kernel-modules 2014-05-01 21:10:48 -04:00
filter-i686.sh Add hid-sensor-rotation to the filter for i686 2014-06-11 14:06:41 -04:00
filter-modules.sh Move isofs to kernel-core 2014-05-09 11:03:40 -04:00
filter-ppc64.sh Rename kernel-drivers to kernel-modules 2014-05-01 21:10:48 -04:00
filter-ppc64le.sh Rename kernel-drivers to kernel-modules 2014-05-01 21:10:48 -04:00
filter-ppc64p7.sh Add filter-ppc64p7.sh because ppc64p7 is an entirely separate RPM arch 2014-06-03 14:47:58 -04:00
filter-ppc.sh Rename kernel-drivers to kernel-modules 2014-05-01 21:10:48 -04:00
filter-s390x.sh Rename kernel-drivers to kernel-modules 2014-05-01 21:10:48 -04:00
filter-x86_64.sh Rename kernel-drivers to kernel-modules 2014-05-01 21:10:48 -04:00
fs-umount-on-symlink-leaks-mnt-count.patch CVE-2014-5045 vfs: refcount issues during lazy umount on symlink (rhbz 1122471 1122482) 2014-07-24 12:04:54 -04:00
hibernate-freeze-filesystems.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
input-kill-stupid-messages.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
kernel-arm64.patch Linux v3.16-rc6-118-g82e13c71bc65 2014-07-25 10:03:55 -04:00
kernel.spec Add patch to fix loading of tegra drm using device tree 2014-07-28 10:14:52 +01:00
lis3-improve-handling-of-null-rate.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
Makefile Linux v3.15-7218-g3f17ea6dea8b 2014-06-11 13:36:24 -04:00
makefile-after_link.patch Linux v3.14-751-g683b6c6f82a6 2014-04-01 15:56:24 -04:00
Makefile.config Add ppc64le support from Brent Baude (rhbz 1073102) 2014-03-06 14:35:39 -05:00
Makefile.release Linux v3.15-7218-g3f17ea6dea8b 2014-06-11 13:36:24 -04:00
merge.pl initial srpm import 2010-07-29 16:46:31 -07:00
mod-extra.list Linux v3.11-rc5-21-g28fbc8b 2013-08-14 14:30:31 -04:00
mod-extra.sh Prep mod-extra.sh for signed modules 2012-09-25 13:22:00 -04:00
mod-sign.sh simplify the signing stuff now that sign-file takes pub/priv key args 2013-03-28 16:33:21 -04:00
modsign-uefi.patch Linux v3.15-7218-g3f17ea6dea8b 2014-06-11 13:36:24 -04:00
no-pcspkr-modalias.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
nowatchdog-on-virt.patch Linux v3.16-rc2-35-g8b8f5d971584 2014-06-24 10:14:12 -04:00
PatchList.txt Linux v3.13-rc1-77-g4c1cc40 2013-11-24 08:42:45 -05:00
perf-lib64.patch perf: install trace-event plugins 2014-06-03 08:33:36 -04:00
README.txt document inheritance/heirarchy of config generation 2012-01-13 15:42:52 -05:00
rebase-notes.txt rebase-notes: no X32 2012-03-19 20:54:31 -04:00
revert-input-wacom-testing-result-shows-get_report-is-unnecessary.patch Revert commit that breaks Wacom Intuos4 from Benjamin Tissoires 2014-06-25 08:45:26 -04:00
Revert-userns-Allow-unprivileged-users-to-create-use.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
samsung-laptop-Add-broken-acpi-video-quirk-for-NC210.patch Linux v3.15-8556-gdfb945473ae8 2014-06-13 08:58:29 -04:00
sb-hibernate.patch Linux v3.15-9930-g0e04c641b199 2014-06-14 09:09:58 -04:00
sched-fix-sched_setparam-policy-1-logic.patch Fix regression in sched_setparam (rhbz 1117942) 2014-07-24 10:44:37 -04:00
scsi-sd_revalidate_disk-prevent-NULL-ptr-deref.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
secure-modules.patch Linux v3.16-rc1-215-g3c8fb5044583 2014-06-20 10:22:00 -04:00
selinux-4da6daf4d3df5a977e4623963f141a627fd2efce.patch Fix selinux sock_graft hook for AF_ALG address family (rhbz 1115120) 2014-07-25 08:18:02 -04:00
serial-460800.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
silence-fbcon-logo.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
silence-noise.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
sources Linux v3.16-rc6-139-g9c5502189fa0 2014-07-26 09:44:41 -04:00
sysrq-secure-boot.patch Linux v3.15-7218-g3f17ea6dea8b 2014-06-11 13:36:24 -04:00
TODO 3.5 reminder 2012-04-30 12:20:09 -04:00
upstream-reverts.patch Rename a bunch of patches. 2013-01-10 14:24:41 -05:00
weird-root-dentry-name-debug.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
x509.genkey Switch to using modsign-post-KS upstream with x509 certs 2012-09-25 13:22:04 -04:00

		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 heirarchy.
-----------------
Instead of having to maintain a config file for every arch variant we build on,
the kernel spec uses a nested system of configs.  At the top level, is
config-generic. Add options here that should be present in every possible
config on all architectures.

Beneath this are per-arch overrides. For example config-x86-generic add
additional x86 specific options, and also _override_ any options that were
set in config-generic.

The heirarchy looks like this..

                           config-generic
                                 |
                         config-x86-generic
                         |                |
             config-x86-32-generic   config-x86-64-generic

An option set in a lower level will override the same option set in one
of the higher levels.


There exist two additional overrides, config-debug, and config-nodebug,
which override -generic, and the per-arch overrides. It is documented
further below.


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 from 'config-debug' are always turned on.
This is done to increase coverage testing, as not many people actually
run kernel-debug.

To add new debug options, add an option to _both_ config-debug and config-nodebug,
and also new stanzas to the Makefile 'debug' and 'release' targets.

Sometimes debug options get added to config-generic, or per-arch overrides
instead of config-[no]debug. In this instance, the options should have no
discernable performance impact, otherwise they belong in the debug files.