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#!/bin/bash -eux
#
# Copyright 2021 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# If your compiler wrapper ends up broken, you can run this script to try to
# restore it to a working version. We can only use artifacts we download from
# gs://, since it's kind of hard to build a working compiler with a broken
# compiler wrapper. ;)
if [[ ! -e "/etc/cros_chroot_version" ]]; then
echo "Run me inside of the chroot."
exit 1
fi
packages_to_reemerge=(
# We want to reemerge the host wrapper...
sys-devel/llvm
)
gcc_wrappers=(
cross-x86_64-cros-linux-gnu/gcc
cross-armv7a-cros-linux-gnueabihf/gcc
cross-aarch64-cros-linux-gnu/gcc
)
# ...and any existing target wrappers.
for gcc in "${gcc_wrappers[@]}"; do
# cheap check for whether or not the package in question is already installed
if ls /var/db/pkg/"${gcc}"-* >& /dev/null; then
packages_to_reemerge+=( "${gcc}" )
fi
done
# Ensure that we don't pick up any broken binpkgs for these when we install
# them below.
for pkg in "${packages_to_reemerge[@]}"; do
sudo rm -f "/var/lib/portage/pkgs/${pkg}"*
done
sudo emerge -j16 -G "${packages_to_reemerge[@]}"
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