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From 7e3498ab7c375bd545de501920acffa77eb24120 Mon Sep 17 00:00:00 2001
From: Bruce Ashfield <bruce.ashfield@xilinx.com>
Date: Mon, 16 Dec 2019 20:42:04 -0800
Subject: [PATCH] make-kernel: cross-compilation tweaks
Signed-off-by: Bruce Ashfield <bruce.ashfield@xilinx.com>
---
kernel/make-kernel | 41 +++++++++++++++++++++++++++++++++--------
1 file changed, 33 insertions(+), 8 deletions(-)
Index: git/kernel/make-kernel
===================================================================
--- git.orig/kernel/make-kernel
+++ git/kernel/make-kernel
@@ -13,6 +13,7 @@
kernel_stuffdir=`readlink -f kernel`
kernel_outpath=$kernel_stuffdir/out
+kernel_srcdir=$kernel_stuffdir/src
kernel_builddir=$kernel_stuffdir/build
kernel_out=$kernel_outpath/kernel
@@ -22,28 +23,52 @@
kernel_url=https://www.kernel.org/pub/linux/kernel/v5.x/"$kernel_tarball"
kernel_src_config="$kernel_stuffdir"/cutdown-config."$ARCH"
kernel_patchesdir="$kernel_stuffdir"/patches
-kernel_image="$kernel_builddir"/"$kernel_name"/arch/"$ARCH"/boot/"$image"
+kernel_image="$kernel_builddir"/arch/"$ARCH"/boot/"$image"
+echo "#########################"
+echo "kernel build summary:"
+echo " version: $kernel_version"
+echo " url: $kernel_url"
+echo " src dir: $kernel_srcdir"
+echo " out dir: $kernel_builddir"
+echo " artifacts: $kernel_out"
+echo " image: $image"
+echo " build vars: $build_vars"
+echo "#########################"
-rm -rf $kernel_outpath
+if [ ! -e "$kernel_builddir/.config" ];
+then
+ rm -rf $kernel_buildir
+fi
mkdir -p $kernel_outpath
mkdir -p $kernel_builddir
+mkdir -p $kernel_srcdir
if [[ ! -f $kernel_builddir/$kernel_tarball ]]
then
+ echo "fetching the kernel .."
wget -O $kernel_builddir/$kernel_tarball --tries=20 $kernel_url
fi
-if [[ ! -d $kernel_builddir/$kernel_name ]]
+
+if [[ ! -d $kernel_srcdir/$kernel_name ]]
then
- tar --extract --xz --touch --file="$kernel_builddir/$kernel_tarball" --directory="$kernel_builddir"
- cd $kernel_builddir/$kernel_name
+ echo "extracting the kernel ..."
+ echo " tar --extract --xz --touch --file=\"$kernel_builddir/$kernel_tarball\" --directory=\"$kernel_srcdir\""
+ tar --extract --xz --touch --file="$kernel_builddir/$kernel_tarball" --directory="$kernel_srcdir"
+ cd $kernel_srcdir/$kernel_name
for i in $kernel_patchesdir/*
do
patch -p1 < $i
done
fi
-cd $kernel_builddir/$kernel_name
-cp $kernel_src_config .config
-make -j "$(getconf _NPROCESSORS_ONLN)" $image
+if [[ ! -f $kernel_builddir/.config ]]
+then
+ cp $kernel_src_config $kernel_builddir/.config
+fi
+cd $kernel_srcdir/$kernel_name
+
+echo "building the kernel ..."
+eval make O=$kernel_builddir $build_vars oldconfig
+eval make -j "$(getconf _NPROCESSORS_ONLN)" O=$kernel_builddir $build_vars $image
cp $kernel_image $kernel_out
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