platform_build_soong/scripts/build-aml-prebuilts.sh

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#!/bin/bash -e
# This is a wrapper around "m" that builds the given modules in multi-arch mode
# for all architectures supported by Mainline modules. The make (kati) stage is
# skipped, so the build targets in the arguments can only be Soong modules or
# intermediate output files - make targets and normal installed paths are not
# supported.
#
# This script is typically used with "sdk" or "module_export" modules, which
# Soong will install in $OUT_DIR/soong/mainline-sdks (cf
# PathForMainlineSdksInstall in android/paths.go).
export OUT_DIR=${OUT_DIR:-out}
if [ -e ${OUT_DIR}/soong/.soong.in_make ]; then
# If ${OUT_DIR} has been created without --skip-make, Soong will create an
# ${OUT_DIR}/soong/build.ninja that leaves out many targets which are
# expected to be supplied by the .mk files, and that might cause errors in
# "m --skip-make" below. We therefore default to a different out dir
# location in that case.
AML_OUT_DIR=out/aml
echo "Avoiding in-make OUT_DIR '${OUT_DIR}' - building in '${AML_OUT_DIR}' instead"
OUT_DIR=${AML_OUT_DIR}
fi
if [ ! -e "build/envsetup.sh" ]; then
echo "$0 must be run from the top of the tree"
exit 1
fi
source build/envsetup.sh
my_get_build_var() {
# get_build_var will run Soong in normal in-make mode where it creates
# .soong.in_make. That would clobber our real out directory, so we need to
# run it in a different one.
OUT_DIR=${OUT_DIR}/get_build_var get_build_var "$@"
}
readonly SOONG_OUT=${OUT_DIR}/soong
mkdir -p ${SOONG_OUT}
# Some Soong build rules may require this, and the failure mode if it's missing
# is confusing (b/172548608).
readonly BUILD_NUMBER="$(my_get_build_var BUILD_NUMBER)"
echo -n ${BUILD_NUMBER} > ${SOONG_OUT}/build_number.txt
readonly PLATFORM_SDK_VERSION="$(my_get_build_var PLATFORM_SDK_VERSION)"
readonly PLATFORM_VERSION="$(my_get_build_var PLATFORM_VERSION)"
PLATFORM_VERSION_ALL_CODENAMES="$(my_get_build_var PLATFORM_VERSION_ALL_CODENAMES)"
# PLATFORM_VERSION_ALL_CODENAMES is a comma separated list like O,P. We need to
# turn this into ["O","P"].
PLATFORM_VERSION_ALL_CODENAMES="${PLATFORM_VERSION_ALL_CODENAMES/,/'","'}"
PLATFORM_VERSION_ALL_CODENAMES="[\"${PLATFORM_VERSION_ALL_CODENAMES}\"]"
# Logic from build/make/core/goma.mk
if [ "${USE_GOMA}" = true ]; then
if [ -n "${GOMA_DIR}" ]; then
goma_dir="${GOMA_DIR}"
else
goma_dir="${HOME}/goma"
fi
GOMA_CC="${goma_dir}/gomacc"
export CC_WRAPPER="${CC_WRAPPER}${CC_WRAPPER:+ }${GOMA_CC}"
export CXX_WRAPPER="${CXX_WRAPPER}${CXX_WRAPPER:+ }${GOMA_CC}"
export JAVAC_WRAPPER="${JAVAC_WRAPPER}${JAVAC_WRAPPER:+ }${GOMA_CC}"
else
USE_GOMA=false
fi
readonly SOONG_VARS=${SOONG_OUT}/soong.variables
# Aml_abis: true
# - This flag configures Soong to compile for all architectures required for
# Mainline modules.
# CrossHost: linux_bionic
# CrossHostArch: x86_64
# - Enable Bionic on host as ART needs prebuilts for it.
cat > ${SOONG_VARS}.new << EOF
{
"BuildNumberFile": "build_number.txt",
"Platform_sdk_version": ${PLATFORM_SDK_VERSION},
"Platform_sdk_codename": "${PLATFORM_VERSION}",
"Platform_version_active_codenames": ${PLATFORM_VERSION_ALL_CODENAMES},
"DeviceName": "generic_arm64",
"HostArch": "x86_64",
"HostSecondaryArch": "x86",
"CrossHost": "linux_bionic",
"CrossHostArch": "x86_64",
"Aml_abis": true,
"Allow_missing_dependencies": ${SOONG_ALLOW_MISSING_DEPENDENCIES:-false},
"Unbundled_build": ${TARGET_BUILD_UNBUNDLED:-false},
"UseGoma": ${USE_GOMA}
}
EOF
if [ -f ${SOONG_VARS} ] && cmp -s ${SOONG_VARS} ${SOONG_VARS}.new; then
# Don't touch soong.variables if we don't have to, to avoid Soong rebuilding
# the ninja file when it isn't necessary.
rm ${SOONG_VARS}.new
else
mv ${SOONG_VARS}.new ${SOONG_VARS}
fi
# We use force building LLVM components flag (even though we actually don't
# compile them) because we don't have bionic host prebuilts
# for them.
export FORCE_BUILD_LLVM_COMPONENTS=true
m --skip-make "$@"