[OE-core] [PATCH 5/5] Revert "kernel/kernel-arch: Explicitly mapping between, i386/x86_64 and x86 for kernel ARCH"
Robert Yang
liezhi.yang at windriver.com
Wed May 11 03:07:11 UTC 2016
From: Tom Zanussi <tom.zanussi at linux.intel.com>
This reverts commit a6f52930a68d8462e23486d51cdda715072dd752.
In addition to also causing the problem in [YOCTO #9579], this commit
was reverted in krogoth and master but wasn't reverted in jethro but
should be. The original revert message was:
This reverts commit 8d310b24927d0f348fb431895f0583733db2aad0.
That commit completely breaks KBUILD_DEFCONFIG because it relies on
$ARCH to match between the target OE arch and the kernel subdirectory
containing the defconfigs. In the kernel all defconfigs for everything
x86-based (including x86_64) is stored in dir arch/x86/configs/
kernel-yocto.bbclass correctly searches for all the defconfigs inside
${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG}
Commit 8d310b249 makes it search in wrong places and _only_ if you
define TARGET_ARCH = "athlon" will it search x86 which is nonsensical.
The commit further adds an if clause to hack the mungled kernel arches
back to their original values (ugh) in do_shared_workdir which is run
after do compile, but of course the build breaks before that in
do_kernel_metadata because of the KBUILD_DEFCONFIG mentioned above (so
that hack is useless).
Please fix that corner case bug in another way which does not completely
screw up the kernel arch mapping & defconfig logic. If 64bit configs are
generated in the kernel for 32bit machines because the host is asked,
then it it a bug in the kernel, it is of no use to hack around it in OE.
(From OE-Core rev: bc02a478a5d4a5de7b3943ed809d5c22711f5b1f)
Signed-off-by: Ioan-Adrian Ratiu <adrian.ratiu at ni.com>
Signed-off-by: Ross Burton <ross.burton at intel.com>
Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
Signed-off-by: Tom Zanussi <tom.zanussi at linux.intel.com>
---
meta/classes/kernel-arch.bbclass | 4 +---
meta/classes/kernel.bbclass | 15 +++------------
2 files changed, 4 insertions(+), 15 deletions(-)
diff --git a/meta/classes/kernel-arch.bbclass b/meta/classes/kernel-arch.bbclass
index d8b180e..3ed5986 100644
--- a/meta/classes/kernel-arch.bbclass
+++ b/meta/classes/kernel-arch.bbclass
@@ -21,9 +21,7 @@ def map_kernel_arch(a, d):
valid_archs = d.getVar('valid_archs', True).split()
- if re.match('i.86$', a): return 'i386'
- elif re.match('x86.64$', a): return 'x86_64'
- elif re.match('athlon$', a): return 'x86'
+ if re.match('(i.86|athlon|x86.64)$', a): return 'x86'
elif re.match('armeb$', a): return 'arm'
elif re.match('aarch64$', a): return 'arm64'
elif re.match('aarch64_be$', a): return 'arm64'
diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index ee3e9a0..5e8b6cf 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -309,18 +309,9 @@ do_shared_workdir () {
cp -fR include/generated/* $kerneldir/include/generated/
fi
- # When ARCH is set to i386 or x86_64, we need to map ARCH to the real name of src
- # dir (x86) under arch/ of kenrel tree, so that we can find correct source to copy.
-
- if [ "${ARCH}" = "i386" ] || [ "${ARCH}" = "x86_64" ]; then
- KERNEL_SRCARCH=x86
- else
- KERNEL_SRCARCH=${ARCH}
- fi
-
- if [ -d arch/${KERNEL_SRCARCH}/include/generated ]; then
- mkdir -p $kerneldir/arch/${KERNEL_SRCARCH}/include/generated/
- cp -fR arch/${KERNEL_SRCARCH}/include/generated/* $kerneldir/arch/${KERNEL_SRCARCH}/include/generated/
+ if [ -d arch/${ARCH}/include/generated ]; then
+ mkdir -p $kerneldir/arch/${ARCH}/include/generated/
+ cp -fR arch/${ARCH}/include/generated/* $kerneldir/arch/${ARCH}/include/generated/
fi
}
--
2.8.0
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