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kernel: Use hardlinks for do_populate_sysroot for speed

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The kernel tree is large and doesn't need to be copied. Override
the default sysroot handling function to use a hardlink copying
function in python.

This commit also drops the copying of the /lib directory which
just contains the kernel modules. We never use those in the sysroot
so there is little point in carrying those around.

For linux-yocto this takes the do_populate_sysroot time 24s -> 14s.

(From OE-Core rev: 13259459e200a237ca486cbe1123a0b0a4d1eebf)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie
2013-11-08 15:18:00 +00:00
parent db5d1274c5
commit df564c4ea8
1 changed files with 2 additions and 2 deletions
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4
meta/classes/kernel.bbclass
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@@ -308,8 +308,8 @@ kernelscripts_sstate_postinst () {
fi
}
sysroot_stage_all_append() {
sysroot_stage_dir ${D}${KERNEL_SRC_PATH} ${SYSROOT_DESTDIR}${KERNEL_SRC_PATH}
python sysroot_stage_all () {
oe.path.copyhardlinktree(d.expand("${D}${KERNEL_SRC_PATH}"), d.expand("${SYSROOT_DESTDIR}${KERNEL_SRC_PATH}"))
}
kernel_do_configure() {