Commit Graph

106 Commits

Author SHA1 Message Date
Rafał Miłecki
f6433eede7 kernel: move initramfs's init script out of base-files
Keeping it in base-files was resulting in adding it to the base-files
package. This file is meant to be included manually for initramfs
images only.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2017-04-04 14:06:40 +02:00
Felix Fietkau
370d740647 kernel: do not try to copy vmlinux out of arch/$(ARCH)/boot
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2017-03-22 11:43:22 +01:00
Felix Fietkau
1f12a3daaa kernel: speed up build system by getting rid of redundant work
KERNELRELEASE contains a $(shell) call which is evaluated over and over
again.
The call to checksyscalls.sh is unnecessary for LEDE and also takes a
few seconds to complete.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2017-03-16 19:14:09 +01:00
Felix Fietkau
84bd74057f build: use mkhash to replace various quirky md5sum/openssl calls
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2017-01-05 11:09:12 +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
685ed1e072 kernel: add STAGING_DIR_HOST/lib to host library search path
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2016-09-29 13:35:11 +02:00
Felix Fietkau
f5860f898a build: use perl instead of GNU date for KBUILD_BUILD_TIMESTAMP
Fixes warning on non-Linux systems

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2016-08-23 11:56:13 +02:00
Josua Mayer
57ef81d78f kernel: prevent adding custom string to localversion
When the kernel build picks up a localversion file in the source tree,
that string is unconditionally appended to LOCALVERSION and affects the
uname string.
Make sure to delete any such file.

Signed-off-by: Josua Mayer <josua.mayer97@gmail.com>
2016-08-18 09:49:18 +02:00
Josua Mayer
0df2c6563a kernel: prevent addition of scm marker to localversion
When building the kernel from a git repository, the kernel build appends
either a + or a short commit hash to localversion.
This behaviour can be prevented by passing the empty LOCALVERSION variable
to make.

Signed-off-by: Josua Mayer <josua.mayer97@gmail.com>
2016-08-18 09:49:18 +02:00
Jonas Gorski
86ec410418 kernel: check SOURCE_DATE_EPOCH before setting KBUILD_BUILD_TIMESTAMP
Make sure SOURCE_DATE_EPOCH actually contains something.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
2016-08-13 15:49:26 +02:00
Jonas Gorski
5fe923b15d kernel: allow reproducable builds
Similar how we fix the file times in the filesystems, fix the build time
of the kernel, and make the build number static. This should allow the
kernel build to be reproducable when combined with setting the
KERNEL_BUILD_USER and _DOMAIN in case of different machines.

The reproducability only applies to non-initramfs kernels, those still
require additional changes.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
2016-08-13 11:35:00 +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
9ae952cf8c build: split scripts/metadata.pl into target-metadata.pl and package-metadata.pl
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2016-06-07 08:58:40 +02:00
Florian Fainelli
09344fde2a kernel: Revert "kernel: set root on NFS when enabled"
This reverts r48591, users needing NFS root will know how to configure
their platform and kernel command-line appropriately.

Reported-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 48689
2016-02-11 03:05:29 +00:00
Felix Fietkau
108a499c81 kernel: enable CONFIG_KALLSYMS_UNCOMPRESSED=y
It was enabled ages ago when it was added.
It still saves about 10k after LZMA, so let's enable it again.

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

SVN-Revision: 48680
2016-02-08 18:44:21 +00:00
Florian Fainelli
d9fab87607 kernel: set root on NFS when enabled
Replace the configured root device with a NFS root device and automatic
IP configuration for booting over NFS.

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

SVN-Revision: 48591
2016-02-01 01:06:56 +00:00
Felix Fietkau
b3f7902a06 include/kernel: add custom USER/DOMAIN config options
These allow the generated kernel's build metadata to be defined explicitly.
This metadata is reported, eg, at boot time and in `uname -a` on running
systems. If the variables aren't configured, the current build system username
and hostname are used as normal.

The motivation for this option is to achive reproducible (bit-for-bit
identical) kernel builds of official openwrt releases.

Signed-off-by: bryan newbold <bnewbold@robocracy.org>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48541
2016-01-28 22:42:34 +00:00
Felix Fietkau
4ab26a52ef build: skip rebuild of kernel images if the source did not change
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48145
2016-01-06 18:38:49 +00:00
Felix Fietkau
9c949b0dca build: suppress unnecessary kernel config rewrites to speed up build
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48143
2016-01-06 18:37:42 +00:00
Felix Fietkau
3bbb927728 build: Allow kernel modules to set build ID debug symbol
This change adds support for specifying a build ID for kernel modules.
This is done by setting PKG_BUILD_ID to a hexadecimal string, which will
then be passed to the kernel linker. In addition, when this flag is set,
the build ID debug symbol (.note.gnu.build-id) will not be stripped from
the kernel module. This symbol is exported in sysfs by the kernel (if
the kernel is compiled with CONFIG_KALLSYMS) and so can be used to
uniquely identify a version of a kernel module in a running kernel. This
is useful for keeping track of different versions of a module when doing
experiments and development.

Modules that specify the build ID will be ~100 bytes larger (depending
on the length of the build ID specified). There is no size difference
for kernel modules that do not set this variable.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>

SVN-Revision: 47290
2015-10-30 15:20:12 +00:00
John Crispin
3ec7ccf501 config: add an option to enable KPROBE
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

SVN-Revision: 45212
2015-04-01 08:33:04 +00:00
Felix Fietkau
5d9eeab64a build: remove obsolete references to cris and avr32
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 44965
2015-03-24 10:07:40 +00:00
Jo-Philipp Wich
b941d2fd65 include: pass kernel version when generating kconfig overrides
Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

SVN-Revision: 44189
2015-01-29 15:51:00 +00:00
Felix Fietkau
9318930993 kernel: allow specifying kernel images to be copied separately from kernel make command line
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 43619
2014-12-11 15:29:33 +00:00
Felix Fietkau
b0ef5e66fa build: remove useless quote stripping for KERNELNAME, add fallback for it in the kernel build command line
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 42781
2014-10-05 20:17:23 +00:00
Felix Fietkau
a402b5c48d build: make sure modules are modposted after initramfs image is built
Otherwise the modpost steps for individual modules that are compiled
manually (using make package/<name_of_module>/install) will give warning
of missing symbols when that module depends other modules.

This is caused by the Module.symvers file not containing any symbols
anymore of external modules when the initramfs image is built without
specifically giving the modules target.

Signed-off-by: Tjalling Hattink <t.hattink@fugro.nl>

SVN-Revision: 42773
2014-10-05 16:58:16 +00:00
John Crispin
8295b1f7f2 target/linux/*/image/Makefile: eliminate more LINUX_DIR users
Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 41792
2014-07-21 18:42:11 +00:00
John Crispin
34106f4a1a include: Allow git kernel branch selection
This allows the selection of a specific branch in the menuconfig
when using a kernel downloaded from GIT.

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

SVN-Revision: 40946
2014-06-02 12:45:22 +00:00
John Crispin
c77feae6be include: Clean-up kernel git command options management
The way git options are managed in kernel-defaults.mk makes additions

difficult. If requires different code path for each option; it's
ok so far as we handle only one option, but if we want to make the git
clone mechanism more flexible, more option will be required, which
will become tedious.

So; we'll move the GIT options into a variable, that may or may not be
set depending on the configuration, and we'll pass this variable to the
git command.

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

SVN-Revision: 40945
2014-06-02 12:45:19 +00:00
John Crispin
45e3540a3f config: Remove KERNEL_GIT_LOCAL_REPOSITORY option
The GIT_LOCAL_REPOSITORY option adds the --reference argument to the
git clone kernel command line, if KERNEL_GIT_CLONE_URI is set.

This option is intended to speed-up the repo creation by using local
objets rather than downloading it. However, a local repo can be cloned
much faster by setting GIT_LOCAL_REPOSITORY directly to the local tree.

In that case, git clone will bypass the normal "git aware" transport
mechanism and clone the repository by copying and hardlinking objects
rather than downloading it, resulting in a significant speed increase.

That makes the GIT_LOCAL_REPOSITORY option pretty useless so we'll just
remove it and recommand the usage of KERNEL_GIT_CLONE_URI directly.

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

SVN-Revision: 40944
2014-06-02 12:45:16 +00:00
John Crispin
76133009c9 sparse: add as a new package selectable from the config
This change does multiple things, all related to enable sparse usage as
a static analysis tool selectable from the OpenWrt configuration:
*add a KERNEL_SPARSE option in the config to add sparse to the kernel
 build (through the C=1 option usage)
*add sparse as a new host tools. It will get selected automatically when
 the above option will be enabled

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

SVN-Revision: 40490
2014-04-12 21:21:49 +00:00
Felix Fietkau
627e974c99 partially revert "build: remove check for nonexistant CONFIG_TAR_VERBOSITY variable and move TAR_OPTIONS to unpack.mk"
This complicates the evaluation order for some packages

SVN-Revision: 40006
2014-03-22 19:52:48 +00:00
John Crispin
b5542f6aed include: r39979 broke kernel unpacking
Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 40002
2014-03-21 18:55:31 +00:00
Felix Fietkau
f440e7faea kernel: fix parallel build issues with header install
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 39424
2014-01-30 07:33:42 +00:00
Imre Kaloz
7aaa9bc91c add x86_64 target support
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>

SVN-Revision: 39208
2014-01-07 12:23:35 +00:00
Florian Fainelli
cdcde21b8d include: handle LZ4 compression scheme
Kernel 3.12 now offers LZ4 compression which will make initramfs builds
fail because we do not know how to substitute the relevant config
symbols, fix that.

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

SVN-Revision: 38533
2013-10-25 01:48:02 +00:00
Felix Fietkau
bb494ed639 kernel: fix remaining initramfs related breakage
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 37518
2013-07-23 13:11:41 +00:00
Luka Perkov
448decfa8e include: fix path for kernel-generated cpio removal
Signed-off-by: Luka Perkov <luka@openwrt.org>

SVN-Revision: 37128
2013-07-02 09:59:17 +00:00
Florian Fainelli
5b5fd9f92d include: force a kernel-generated cpio removal and rebuild
Make sure that the kernel rebuilds the initramfs cpio archive file by
deleting it before so we get it re-generated properly.

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

SVN-Revision: 37125
2013-07-01 20:52:00 +00:00
Florian Fainelli
bc7260a125 buildroot: filter out dtbs KERNELNAME target (#13785)
Do not attempt to copy arch/$(LINUX_KARCH)/boot/dtbs because these are
not real files, fixes #13785.

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

SVN-Revision: 37107
2013-06-30 17:09:21 +00:00
Florian Fainelli
eab95ea467 buildroot: copy KENRNELNAME files to $(KDIR)
In order to support building both normal and initramfs kernel, we will
rebuild the wrappers around the vmlinux ELF binary, copy these with an
appropriate extension when they exist.

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

SVN-Revision: 37048
2013-06-27 19:58:24 +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
Florian Fainelli
b729d41d64 buildroot: workaround broken syntax highlighting
GNU Make's subst is always breaking syntax highlighting with at least
vim add the right comments to workaround it.

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

SVN-Revision: 37046
2013-06-27 19:58:16 +00:00
Florian Fainelli
d85ec2b936 kernel: add missing CONFIG_KALLSYMS_UNCOMPRESSED symbol
Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 35180
2013-01-15 19:55:45 +00:00
Imre Kaloz
0fa21ec3eb use xz compressed kernel tarballs
SVN-Revision: 34228
2012-11-18 08:49:08 +00:00
Florian Fainelli
451803c51a kernel-defaults: factor common code handling initramfs options
While at it, reindent so it is more in-line with the rest of the file.

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

SVN-Revision: 34034
2012-10-31 17:32:37 +00:00
Florian Fainelli
246e563cb7 properly reindent Kernel/Prepare/Default
SVN-Revision: 34014
2012-10-30 16:56:03 +00:00
Felix Fietkau
482a6d4aea kernel: suppress redundant calls to headers installation
SVN-Revision: 33421
2012-09-15 12:16:11 +00:00
Felix Fietkau
8091d3f2e8 kernel: remove the explicit kernel make call for "oldconfig prepare scripts", the kernel build system has proper dependencies
SVN-Revision: 33420
2012-09-15 12:16:07 +00:00
Felix Fietkau
b1f318de53 kernel: fix portability issues on the x86 specific relocs host tool, fixes build on mac os x
SVN-Revision: 32783
2012-07-20 12:28:50 +00:00