dragora/stages/1/02-musl

# Build script for musl.
#
# Copyright (c) 2014-2018 Matias Fonzo, <selk@dragora.org>.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

version=c50985d5c8e316c5c464f352e79eeebfed1121a9

cd -- "$TMPDIR"
rm -rf musl-${version}
unpack "${worktree}/sources/musl-${version}.tar.gz"

# Build instructions
cd musl-${version}

# Support Linux UAPI version 4.18
# http://port70.net/~nsz/musl/linux418/

for file in "${worktree}/patches/musl/linux48"/????-*.patch
do
    patch -Np1 -i "$file"
done
unset file

./configure CROSS_COMPILE="${target}-" \
 --prefix=/tools \
 --libdir=/tools/lib${libSuffix} \
 --syslibdir=/tools/lib \
 --build=$host \
 --host=$target \
 --enable-optimize=size \
 --disable-debug

make -j${jobs}
make -j${jobs} DESTDIR="$rootdir" install

# Provide minimal libssp_nonshared.a so we don't need libssp from GCC

# Import and export toolchain variables
. "${worktree}/stages/env.d/cross-staticenv"

$BTCC $BTCFLAGS -c "${worktree}/archive/musl/__stack_chk_fail_local.c" \
                -o __stack_chk_fail_local.o
$AR r libssp_nonshared.a __stack_chk_fail_local.o

cp -p libssp_nonshared.a /tools/lib${libSuffix}/

# Unset some imported variables from file
unset AR AS LD RANLIB READELF STRIP

cleanup()
{
    cd -- "$TMPDIR" && rm -rf musl-${version}
}