The Linux kernel
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2014-01-21 17:16:04 -05:00
scripts generate-git-snapshot.sh: warn if $LINUX_GIT dir is unset 2013-07-18 20:14:24 -04:00
.gitignore Linux v3.13 2014-01-20 11:49:12 -05:00
0001-Input-wacom-make-sure-touch_max-is-set-for-touch-dev.patch Add support for Wacom Intuos 5 S devices (rhbz 1046238) 2014-01-07 07:43:24 -05:00
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
0002-Input-wacom-add-support-for-three-new-Intuos-devices.patch Add support for Wacom Intuos 5 S devices (rhbz 1046238) 2014-01-07 07:43:24 -05:00
0003-Input-wacom-add-reporting-of-SW_MUTE_DEVICE-events.patch Add support for Wacom Intuos 5 S devices (rhbz 1046238) 2014-01-07 07:43:24 -05:00
arm-imx6-utilite.patch Fix ARM Utilite DTB 2013-11-23 01:01:06 +00:00
arm-lpae-ax88796.patch Linux v3.9-rc8 2013-04-22 12:26:16 -05:00
arm-omap-load-tfp410.patch * General ARM config cleanups 2013-10-07 17:34:36 +01:00
arm-sound-soc-samsung-dma-avoid-another-64bit-division.patch yet another 64-bit libgcc callout 2013-07-29 17:01:11 -04:00
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
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 enable CONFIG_KVM on arm64 2014-01-20 16:06:13 -05:00
config-arm-generic Enable thermal userspace support for ARM 2014-01-13 10:54:56 +00:00
config-armv7 Enable generic cpufreq-cpu0 driver on ARM 2014-01-13 09:14:01 +00:00
config-armv7-generic Enable ARM_GLOBAL_TIMER on ARM used by a number of Cortex-A9 and later platforms 2014-01-18 11:05:17 +00:00
config-armv7-lpae Enable generic cpufreq-cpu0 driver on ARM 2014-01-13 09:14:01 +00:00
config-debug Default to SLUB_DEBUG_ON not set 2014-01-16 15:07:12 -05:00
config-generic Linux v3.13 2014-01-20 11:49:12 -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 v3.13 2014-01-20 11:49:12 -05:00
config-powerpc32-generic Minor kernel configs cleanup merging duplicated config opts into generic 2013-08-19 09:37:57 -04:00
config-powerpc32-smp Minor kernel configs cleanup merging duplicated config opts into generic 2013-08-19 09:37:57 -04:00
config-powerpc64 Linux v3.13-rc2-215-g53c6de5 2013-12-05 09:42:28 -05:00
config-powerpc64p7 Build PR KVM on POWER7 too (rhbz 1038541) 2013-12-05 10:12:51 -05:00
config-powerpc-generic Linux v3.12-10928-g527d151 2013-11-20 19:51:25 -05:00
config-s390x Fix crash driver build and re-enable on s390x (from Dan Horák) 2013-11-26 13:53:18 -05:00
config-x86_64-generic Revert "config, x86 enable boot cpu hotplug" 2014-01-20 11:51:17 -05:00
config-x86-32-generic Linux v3.12-10928-g527d151 2013-11-20 19:51:25 -05:00
config-x86-generic Linux v3.13 2014-01-20 11:49:12 -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
defaults-acpi-video.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
dm-cache-policy-mq_fix-large-scale-table-allocation-bug.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
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
elantech-Properly-differentiate-between-clickpads-an.patch Add patches to support ETPS/2 Elantech touchpads (rhbz 1030802) 2013-12-11 08:51:05 -05:00
fs-proc-devtree-remove_proc_entry.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
hibernate-freeze-filesystems.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
Input-ALPS-add-support-for-Dolphin-devices.patch Backport support for ALPS Dolphin devices (rhbz 953211) 2014-01-08 13:33:57 -05:00
input-kill-stupid-messages.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
kernel.spec enable CONFIG_KVM on arm64 2014-01-20 16:06:13 -05:00
KVM-MMU-handle-invalid-root_hpa-at-__direct_map.patch Fix oops in KVM with invalid root_hpa (rhbz 924916) 2014-01-06 08:19:43 -05:00
KVM-VMX-fix-use-after-free-of-vmx-loaded_vmcs.patch Fix use after free crash in KVM (rhbz 1047892) 2014-01-06 14:21:02 -05:00
lis3-improve-handling-of-null-rate.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
Makefile Default to SLUB_DEBUG_ON not set 2014-01-16 15:07:12 -05:00
makefile-after_link.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
Makefile.config use $^ and specify config-{no,}debug in the dependencies 2014-01-21 17:16:04 -05:00
Makefile.release Default to SLUB_DEBUG_ON not set 2014-01-16 15:07:12 -05:00
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 Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
nfs-check-gssd-running-before-krb5i-auth.patch Add patches to fix dummy gssd entry (rhbz 1037793) 2013-12-20 08:50:04 -05:00
no-pcspkr-modalias.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
nowatchdog-on-virt.patch Fix nowatchdog-on-virt.patch to actually work in KVM guests 2013-12-18 10:31:48 -05:00
PatchList.txt Linux v3.13-rc1-77-g4c1cc40 2013-11-24 08:42:45 -05:00
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-userns-Allow-unprivileged-users-to-create-use.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
rpc_pipe-fix-cleanup-of-dummy-gssd-directory-when-notification-fails.patch Add patches to fix dummy gssd entry (rhbz 1037793) 2013-12-20 08:50:04 -05:00
rpc_pipe-remove-the-clntXX-dir-if-creating-the-pipe-fails.patch Add patches to fix dummy gssd entry (rhbz 1037793) 2013-12-20 08:50:04 -05:00
sb-hibernate.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
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 Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
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 v3.13 2014-01-20 11:49:12 -05:00
sunrpc-add-an-info-file-for-the-dummy-gssd-pipe.patch Add patches to fix dummy gssd entry (rhbz 1037793) 2013-12-20 08:50:04 -05:00
sunrpc-create-a-new-dummy-pipe-for-gssd-to-hold-open.patch Add patches to fix dummy gssd entry (rhbz 1037793) 2013-12-20 08:50:04 -05:00
sunrpc-replace-gssd_running-with-more-reliable-check.patch Add patches to fix dummy gssd entry (rhbz 1037793) 2013-12-20 08:50:04 -05:00
sysrq-secure-boot.patch Update patches with bugzilla/upstream-status fields 2013-12-17 11:16:02 -05:00
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.