pmaports/main/devicepkg-dev/downstreamkernel_prepare.sh
Oliver Smith 4328e5fe2f
devicepkg-dev: opt-out compiler-gcc.h replacing (!186)
Instead of never overwriting compiler-gcc.h if it exists, overwrite it
by default except if OVERWRITE_GCCH=0 is set in the environment.

Most kernels *do* need this file replaced and won't build without this
patch.
2019-01-29 09:44:44 +01:00

53 lines
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#!/bin/sh
# Replace compiler-gcc.h with one that works with newer GCC versions.
# Set REPLACE_GCCH=0 to avoid replacing an existing compiler-gcc.h file.
install_gcc_h() {
_gcch="$builddir/include/linux/compiler-gcc.h"
if [ -f "$_gcch" ]; then
if [ "$REPLACE_GCCH" = "0" ]; then
echo "NOTE: *not* replacing $_gcch, because of REPLACE_GCCH=0"
return
else
echo "NOTE: replacing $_gcch! If your build breaks with 'Please"
echo "don't include <linux/compiler-gcc.h> directly' or a similar"
echo "compiler-gcc.h related error, then set"
echo " REPLACE_GCCH=0"
echo "in your kernel APKBUILD at the start of the"
echo "downstreamkernel_prepare.sh line."
fi
fi
cp -v "/usr/share/devicepkg-dev/compiler-gcc.h" "$_gcch"
}
# Parse arguments
srcdir=$1
builddir=$2
_config=$3
_carch=$4
HOSTCC=$5
if [ -z "$srcdir" ] || [ -z "$builddir" ] || [ -z "$_config" ] ||
[ -z "$_carch" ] || [ -z "$HOSTCC" ]; then
echo "ERROR: missing argument!"
echo "Please call downstreamkernel_prepare() with \$srcdir, \$builddir,"
echo "\$_config, \$_carch and \$HOSTCC as arguments."
exit 1
fi
# Support newer GCC versions
install_gcc_h
# Remove -Werror from all makefiles
makefiles="$(find "$builddir" -type f -name Makefile)
$(find "$builddir" -type f -name Kbuild)"
for i in $makefiles; do
sed -i 's/-Werror-/-W/g' "$i"
sed -i 's/-Werror=/-W/g' "$i"
sed -i 's/-Werror//g' "$i"
done
# Prepare kernel config ('yes ""' for kernels lacking olddefconfig)
cp "$srcdir/$_config" "$builddir"/.config
yes "" | make -C "$builddir" ARCH="$_carch" HOSTCC="$HOSTCC" oldconfig