Commit Graph

95 Commits

Author SHA1 Message Date
Jo-Philipp Wich
fe43969336 include: kernel-build: pass pkg-config overrides to kernel build
Pass suitable pkg-config overrides to the kernel build process in
order to let our pkg-config wrapper discover libraries provided
by tools/.

This mainly affects the use of libelf which is required for the
CONFIG_STACK_VALIDATION features. So far, the build system either
silently used host system libraries or kbuild simply disabled the
feature due to the lack of a suitable libelf.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2019-09-03 10:44:21 +02:00
Matthias Schiffer
36fa1bbf6f
include/kernel-build.mk: fix kernel rebuild on backport patch changes
An incorrect variable name was referenced in KERNEL_FILE_DEPENDS, leading
to the omission of the backport-* patch dirs in the generation of the
prepared stamp name.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
2018-07-14 13:07:34 +02:00
Alexandru Ardelean
ab6a96f3f5 Config-devel.in: rename symbol KERNEL_GIT_BRANCH -> KERNEL_GIT_REF
The Download/git rule will do a `git checkout <git-ref>`.
So, we can use any ref we want.

No need to limit just to branches.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>
2018-01-27 16:46:45 +01:00
John Crispin
74d00a8c38 kernel: split patches folder up into backport, pending and hack folders
* properly format/comment all patches
* merge debloat patches
* merge Kconfig patches
* merge swconfig patches
* merge hotplug patches
* drop 200-fix_localversion.patch - upstream
* drop 222-arm_zimage_none.patch - unused
* drop 252-mv_cesa_depends.patch - no longer required
* drop 410-mtd-move-forward-declaration-of-struct-mtd_info.patch - unused
* drop 661-fq_codel_keep_dropped_stats.patch - outdated
* drop 702-phy_add_aneg_done_function.patch - upstream
* drop 840-rtc7301.patch - unused
* drop 841-rtc_pt7c4338.patch - upstream
* drop 921-use_preinit_as_init.patch - unused
* drop spio-gpio-old and gpio-mmc - unused

Signed-off-by: John Crispin <john@phrozen.org>
2017-08-05 08:46:36 +02:00
Felix Fietkau
fec38ebf0d kernel: fix segmentation fault in mconf on linux
Commit 86c966a8ae caused HOST_LOADLIBES to
include -lncurses. This was added for fixing build issues on macOS.
This introduces issues on Linux when wide-character ncurses is being
used for compiling, but the non-wide-character version is linked in.

Fix this by adding the extra override for HOST_LOADLIBES only on macOS.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2017-06-07 18:31:10 +02:00
Felix Fietkau
0aed054bec build: add KERNEL_MAKE and KERNEL_MAKE_FLAGS variables and move to kernel.mk
This allows packages to use kernel make options without the forced
-C $(LINUX_DIR). It also makes it more clear that it to be called from
kernel module packages directly.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2017-06-07 18:31:10 +02:00
Felix Fietkau
9467ce42da build: get rid of host.mk
Defined required host related variables in toplevel.mk instead

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2017-02-26 13:31:44 +01:00
Felix Fietkau
dce6eeccc0 build: skip headers install and config on make target/linux/prepare
This simplifies working with quilt on the kernel tree

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2017-02-15 12:35:17 +01:00
Mirko Vogt
c99f881568 git-kernel: $(SUBDIR) should always be $(LINUX_VERSION)
Before SUBDIR was set to $(PATCHVER) which may
or may not include the minor version number of
the linux kernel version. Usually it doesn't.

So the git-clone'd linux kernel was packed without
the minor version number taken into account, which
broke further processing, as it expected the
extracted dir being named linux-$(LINUX_VERSION)
(=with minor version) rather than linux-$(PATCHVER)
(=without minor version).

Changing SUBDIR to $(LINUX_VERSION) creates
consistent behaviour here.

Signed-off-by: Mirko Vogt <mirko-openwrt@nanl.de>
2017-01-18 21:03:26 +01:00
Felix Fietkau
720b99215d treewide: clean up download hashes
Replace *MD5SUM with *HASH, replace MD5 hashes with SHA256

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2016-12-16 22:39:22 +01:00
Florian Fainelli
9a08c0ba80 include/kernel: Switch to git download method
Utilize the existing git download logic from include/download.mk and migrate
the kernel download over to it. This avoids repeatedly cloning kernel sources
after a make target/linux/clean for instance.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name> [fix build error]
2016-12-04 11:41:51 +01:00
Felix Fietkau
86c966a8ae build: fix regression on running make kernel_menuconfig
The build system overrides HOST_LOADLIBES to add the staging dir to the
library search path. menuconfig needs -lncurses, add another override
for it.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2016-10-04 17:51:49 +02:00
Jonas Gorski
f3923dab7b kernel: check the right directories for rebuild
Pass KERNEL_FILE_DEPENDS to rdep instead of PKG_FILE_DEPENDS, which is
empty. Also don't pass $(CURDIR) as the directory to timestamp, as it
would also pick up non kernel related changes like image building code.

Should fix kernel being rebuild for unrelated changes, as well as not
being rebuild for changes in target/linux/generic.

Fixes: 22ef1c83b3 ("kernel: make the kernel build auto-clean the build dir like package build")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
2016-08-19 11:02:47 +02:00
Felix Fietkau
22ef1c83b3 kernel: make the kernel build auto-clean the build dir like package builds
Previous behavior can be restored by using QUILT=1 on target/prepare

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2016-08-05 14:17:08 +02:00
Felix Fietkau
be6acba4dc build system: have tar use $SOURCE_DATE_EPOCH for --mtime
The --mtime argument to 'tar' sets the modification time for all files within
the archive, which determines the timestamp files will get when they are
extracted. In this case, rootfs and other tarballs will get mtimes which
correspond to the last commit timestamp of the build system, as reported by
git/subversion.

This is a step towards reproducible image builds.

Signed-off-by: bryan newbold <bnewbold@robocracy.org>
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48586
2016-01-31 23:29:16 +00:00
Felix Fietkau
3021d3139b kernel: remove .config.prev when running make kernel_*config to fix rebuild errors
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48545
2016-01-29 00:38:49 +00:00
Felix Fietkau
51c665bbdb kernel-build.mk: add .NOTPARALLEL
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 42876
2014-10-12 15:00:19 +00:00
John Crispin
2ef0acc5fc kernel-build: fix STRIP_KERNEL_EXPORTS for recent kernels
Recent kernels started to mark exported symbols as global.
Adapt expressions in kernel-build.mk to also match global symbols
when grep'ing through nm output.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

SVN-Revision: 42555
2014-09-15 16:18:48 +00:00
John Crispin
2e240a44c1 include: fix kernel download failure with git & local trees
When using the options EXTERNAL_KERNEL_TREE or KERNEL_GIT_CLONE_URI,
the command "make downloads" fails as it tries to download the kernel
tarball despite the option. This doesn't happen during a regular build
as in that case, the dependency is conditionned through the LINUX_SITE
variable, which is not set in these cases.

Below is a snapshot of the error for an target using a 3.14 kernel:

make[3]: *** No rule to make target `.../dl/linux-3.14.tar.xz',
needed by `download'.  Stop.

Change-Id: I1244969c1bbf9c81a6a64d68ae88ac58b0f8e79e
Signed-off-by: Mathieu Olivari <mathieu@qca.qualcomm.com>

SVN-Revision: 40913
2014-06-02 12:43:13 +00:00
Felix Fietkau
5a6a47e431 build: speed up kernel symbol export stripping
GNU grep has a high per-expression setup overhead when compiling regular
expressions. Use -F to force it to interpret the input as fixed strings,
which is much faster (fraction of a second instead of multiple minutes).

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 39049
2013-12-14 13:14:44 +00:00
Florian Fainelli
a890ccd6e0 buildroot: build a second pass kernel if initramfs is enabled
If initramfs is enabled, build a second pass kernel containing the CPIO
rootfs, preliminary work to get non exclusive enabling of initramfs.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 37047
2013-06-27 19:58:20 +00:00
Felix Fietkau
8933b918cd kernel: use -ffunction-sections, -fdata-sections and --gc-sections on mips
in combination with kernel symbol export stripping this significantly reduces
the kernel image size

SVN-Revision: 35320
2013-01-26 16:26:13 +00:00
Felix Fietkau
7809d73fd2 kernel: fix module export stripping
SVN-Revision: 35319
2013-01-26 16:26:04 +00:00
Felix Fietkau
24b31c9428 kernel: fix stripping symbol exports
SVN-Revision: 34458
2012-12-02 17:42:17 +00:00
Jo-Philipp Wich
5171edd8d5 kernel-build.mk: there is no tarball when using CONFIG_KERNEL_GIT_CLONE_URI or CONFIG_EXTERNAL_KERNEL_TREE, do not make the prepared stamp file depend on it in this case
SVN-Revision: 28361
2011-10-03 11:33:13 +00:00
Felix Fietkau
caf4747f0c build: clean up handling of the kernel config
- support kernel config overlays in env/
- allow overriding the target kernel config with CONFIG_TARGET=platform|subtarget|env

SVN-Revision: 26498
2011-04-06 14:48:55 +00:00
Lars-Peter Clausen
a97d6b0c95 Add kernel_nconfig make target
SVN-Revision: 22518
2010-08-06 21:36:35 +00:00
Felix Fietkau
fd8142403e add a build system option for collecting all kernel debug information (including modules) in a tarball
SVN-Revision: 22327
2010-07-21 15:18:24 +00:00
Felix Fietkau
8e808a54c2 Revert "sort Kconfig symbols automatically to make Kaloz happy :p" Relying on some sort implementations' weird behaviour of ignoring # and whitespaces at the beginning of a line is not a good idea, and it's certainly not portable
SVN-Revision: 19675
2010-02-16 21:34:50 +00:00
Gabor Juhos
03779da9c6 sort Kconfig symbols automatically to make Kaloz happy :p
SVN-Revision: 19582
2010-02-11 13:07:10 +00:00
Felix Fietkau
ea41d3a288 merge target kernel config files with subtarget config files and add a variable override for editing the target kernel config file with make kernel_menuconfig in case the subtarget contains overrides (thx, sn9)
SVN-Revision: 18362
2009-11-11 01:25:06 +00:00
Felix Fietkau
bb5a40c64b add an optional config option for stripping all unnecessary symbol exports from the kernel image
SVN-Revision: 17181
2009-08-08 14:22:04 +00:00
Felix Fietkau
6d782f93d8 kernel: make sure all patches are applied before running menuconfig or oldconfig
SVN-Revision: 15325
2009-04-21 13:08:56 +00:00
Felix Fietkau
ab8c8b019f enable quilt by default for the kernel tree
SVN-Revision: 12400
2008-08-27 14:14:00 +00:00
Felix Fietkau
811b00f646 fix make kernel_menuconfig for subtarget kernel config files
SVN-Revision: 12376
2008-08-23 23:45:28 +00:00
Felix Fietkau
a3a37d0bb1 rework parallel building to get rid of some warnings and add back support for parallelizing the kernel build fixes #3882
SVN-Revision: 12322
2008-08-16 16:59:47 +00:00
Felix Fietkau
d26fa58d25 create a platform config-* file if there is none already when running kernel_menuconfig or kernel_oldconfig
SVN-Revision: 11460
2008-06-13 15:28:31 +00:00
Felix Fietkau
4c665e6ca4 large improvement for parallel builds. works without V=99 now and without warnings. tested with -j on an 2x dual core opteron machine
SVN-Revision: 11414
2008-06-09 15:38:45 +00:00
Felix Fietkau
02bc11903e fix kernel config on kernel_menuconfig abort
SVN-Revision: 11076
2008-05-08 15:52:55 +00:00
Felix Fietkau
e2f7a60283 fixes for refresh/update handling
SVN-Revision: 9063
2007-09-29 04:29:11 +00:00
Felix Fietkau
dbeb0fad24 Refactor downloading code into download.mk Support multiple file downloads Support svn downloads
SVN-Revision: 9057
2007-09-29 00:05:48 +00:00
Felix Fietkau
986445a623 properly clean up after kernel_{old,menu}config
SVN-Revision: 8737
2007-09-11 00:14:37 +00:00
Felix Fietkau
01b6a90e3d fix kernel_menuconfig
SVN-Revision: 8726
2007-09-10 01:04:57 +00:00
Felix Fietkau
a9d683ca91 major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets
SVN-Revision: 8694
2007-09-08 19:55:42 +00:00
Felix Fietkau
56231056ea strip the kernel version suffix from target directories, except for brcm-2.4 (the -2.4 will be included in the board name here). CONFIG_LINUX_<ver>_<board> becomes CONFIG_TARGET_<board>, same for profiles.
SVN-Revision: 8653
2007-09-06 16:27:37 +00:00
Nicolas Thill
b35e6fe3ba include kernel-version.mk from kernel.mk so that a correct KERNEL_PATCHVER is always available
SVN-Revision: 8494
2007-08-26 13:26:02 +00:00
Felix Fietkau
c6bc77ea36 build system cleanup/restructuring as described in http://lists.openwrt.org/pipermail/openwrt-devel/2007-August/001159.html
SVN-Revision: 8362
2007-08-07 00:04:25 +00:00
Felix Fietkau
d6666fdd40 fix image installation
SVN-Revision: 8324
2007-08-03 01:21:41 +00:00
Felix Fietkau
40c1241377 silence
SVN-Revision: 8252
2007-07-30 23:04:24 +00:00
Felix Fietkau
d7f2cb1642 next round of cleanup, convert target/ - make -j works now ;)
SVN-Revision: 8242
2007-07-30 21:14:08 +00:00