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If we have DEPENDS = "virtual/kernel" is means that the kernel module
depends on the kernel's do_populate_sysroot task. This is not entirely
desireable since that depends on do_install which depends on
do_compile_kernelmodules and so on. In a situation where rm_work in involved
this can cause some pretty length build cycles after the kernel workdir
has been cleaned up by rm_work.
As well as removing this, take the opportunity to clean up duplicated
dependency lines, tweak the dependency of make_scripts for the same
reason and generally try and make things more readable.
(From OE-Core rev: a641247d262971db2d44815c5a668e7e50bdaf4f)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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commit 3b3f7e785e279 [kernel: Rearrange for 1.8] began the process of
moving the kernel source and build artefacts out of sstate control and
into a shared location.
This changed triggered some workflow issues, as well as bugs related
to the kernel source containing build output, and hence being dirty and
breaking kernel rebuilds.
To solve these issues, and to make it clear that the kernel is not under
sstate control, we move the source and build outputs to:
work-shared/MACHINE/kernel-source
work-shared/MACHINE/kernel-build-artifacts
Where kernel-build-artifacts is the kernel build output and
kernel-source is kept "pristine". The build-artifacts contain everything
that is required to build external modules against the kernel source,
and includes the defconfig, the kernel-abiversion, System.map files and
output from "make scripts".
External module builds should either pass O= on the command line, or
set KBUILD_OUTPUT to point to the build-artifacts. module-base.bbclass
takes care of setting KBUILD_OUTPUT, so most existing external module
recipes are transparently adapted to the new source/build layout.
recipes that depend on the kernel source must have a depedency on the
do_shared_workdir task:
do_configure[depends] += "virtual/kernel:do_shared_workdir"
With this dependency added, the STAGING_KERNEL_DIR will be populated and
available to the rest of the build.
(From OE-Core rev: 6a1ff0e7eacef595738f2fed086986fd622ec32a)
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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This class has been empty since 2010, so we shouldn't need it anymore. A
check of common layers suggests there shouldn't be any references to it
outside of OE-Core.
(From OE-Core rev: 3c4557df95e3c60ef938c53f00bb1d7f765fe0ef)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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The comment was originally written for module.bbclass and is now
slightly misleading. This updates it to match the current code.
(From OE-Core rev: 434277ed156c1685283f6fd681062d265f4fa6d0)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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This makes the external module compilation a bit more robust for
cases where external module recipes may be passing extra params
to make via EXTRA_OEMAKE, and more than often one needs to pass
M=$(PWD) when building external modules and if we use EXTRA_OEMAKE
that would mean that it would appear in do_make_scripts as well
and since we are only changing the reference kernel src tree here
it will not run the make scripts in desired directory.
It is also well explained in top makefile in kernel tree around
line# 1335 in 3.4
|else # KBUILD_EXTMOD
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|###
|# External module support.
|# When building external modules the kernel used as basis is considered
|# read-only, and no consistency checks are made and the make
|# system is not used on the basis kernel. If updates are required
|# in the basis kernel ordinary make commands (without M=...) must
|# be used.
Therefore passing M=... will not do the updates in the basis
kernel as expected with 'make scripts' so we have to bypass EXTRA_OEMAKE
[Yocto #3787]
(From OE-Core rev: 0e0a5ee405bab478f35690e95219a1e5f2ac7aa6)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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kernel compiler is not special and we currently have it so
we want to pass -march and -mtune options as CFLAGS to kernel
build so that compiler picks the right subarch flags when
compiling assembly files in particular. Otherwise defaults
are chosen which may not be right in many case e.g. when
compiling kernel for collie machine we should use arch=armv4
but it uses toolchain/as defaults which is armv5te
in some case e.g. thumb1 we know that kernel can not be compiled
in thumb1 mode so we can provide that information e.g. -marm
option through KERNEL_HOST_CC_ARCH variable as we do now
(From OE-Core rev: c49f967384ccbfe131bbb33ee518014f3fc4b38f)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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It's sometimes useful to have this function available to recipes which
don't wish to use module.bbclass for whatever reason.
(From OE-Core rev: 7632b44e7f487180811d47fbe9c29aa8e58868a2)
Signed-off-by: Phil Blundell <pb@pbcl.net>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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KERNEL_LD was using ${LD} in it's definition, which is not correct for
different ABIs such as x32 or i386 on x86_64 machine. This brings it
into sync with the corresponding gcc settings, likewise the same with
the KERNEL_AR variable.
[RP: Updated commit message]
(From OE-Core rev: 9c525241c564a458db8ecd9ba325edeb13ec1c58)
Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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kernel-source do not exist in STAGING_KERNEL_DIR any longer.
Remove the exported KERNEL_SOURCE as the STAGING_KERNEL_DIR can
be used in module recipes directly.
(From OE-Core rev: b67ef579db4c1906d6e508a8451cd2b01b7b62ab)
Signed-off-by: Anders Darander <anders@chargestorm.se>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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(From OE-Core rev: 06285501667a025893b56f66eae082f88ef08427)
Signed-off-by: Anders Darander <anders@chargestorm.se>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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git-svn-id: https://svn.o-hand.com/repos/poky/trunk@3422 311d38ba-8fff-0310-9ca6-ca027cbcb966
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git-svn-id: https://svn.o-hand.com/repos/poky/trunk@530 311d38ba-8fff-0310-9ca6-ca027cbcb966
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