# Copyright (C) 2018 The Android Open Source Project
#
# 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.
#

PROJECT_QEMU_INC_LOCAL_DIR := $(GET_LOCAL_DIR)

include project/$(QEMU_TRUSTY_PROJECT).mk

MODULES += \
	trusty/user/app/storage/rpmb_dev \

ATF_DEBUG := 1
ATF_PLAT := qemu
ATF_WITH_TRUSTY_GENERIC_SERVICES := true
ATF_BUILD_BASE := $(abspath $(BUILDDIR)/atf)
ATF_TOOLCHAIN_PREFIX := $(ARCH_arm64_TOOLCHAIN_PREFIX)
ATF_ROOT := external/arm-trusted-firmware
include project/qemu-atf-inc.mk

QEMU_ROOT := external/qemu
QEMU_BUILD_BASE := $(abspath $(BUILDDIR)/qemu-build)
QEMU_ARCH := aarch64
include project/qemu-qemu-inc.mk

LINUX_ARCH ?= $(ARCH)
include project/linux-inc.mk

EXTRA_BUILDRULES += external/trusty/test-runner/test-runner-inc.mk
TEST_RUNNER_BIN := $(BUILDDIR)/test-runner/test-runner.bin

RUN_QEMU_SCRIPT := $(BUILDDIR)/run-qemu
QEMU_CONFIG := $(BUILDDIR)/config.json

$(ATF_OUT_DIR):
	mkdir -p $@

# For ATF bootloader semihosting calls, bl32 and bl33 need to be in place
# For RPMB device emulation, test-runner expects to find rpmb_dev
ATF_SYMLINKS := \
	$(ATF_OUT_DIR)/bl32.bin \
	$(ATF_OUT_DIR)/bl33.bin \
	$(ATF_OUT_DIR)/rpmb_dev \

$(ATF_OUT_DIR)/bl32.bin: $(BUILDDIR)/lk.bin $(ATF_OUT_DIR)
	ln -sf $(abspath $<) $@

$(ATF_OUT_DIR)/bl33.bin: $(TEST_RUNNER_BIN) $(ATF_OUT_DIR)
	ln -sf $(abspath $<) $@

$(ATF_OUT_DIR)/rpmb_dev: $(BUILDDIR)/host_tools/rpmb_dev $(ATF_OUT_DIR)
	ln -sf $(abspath $<) $@

ATF_OUT_COPIED_FILES := \
	$(ATF_OUT_DIR)/firmware.android.dts \
	$(ATF_OUT_DIR)/run-qemu-helper \

$(ATF_OUT_COPIED_FILES): $(ATF_OUT_DIR)/% : $(PROJECT_QEMU_INC_LOCAL_DIR)/qemu/% $(ATF_OUT_DIR)
	@echo copying $@
	@cp $< $@

$(ATF_OUT_DIR)/RPMB_DATA: ATF_OUT_DIR := $(ATF_OUT_DIR)
$(ATF_OUT_DIR)/RPMB_DATA: $(BUILDDIR)/host_tools/rpmb_dev
	@echo Initialize rpmb device
	$< --dev $(ATF_OUT_DIR)/RPMB_DATA --init --key "ea df 64 44 ea 65 5d 1c 87 27 d4 20 71 0d 53 42 dd 73 a3 38 63 e1 d7 94 c3 72 a6 ea e0 64 64 e6" --size 2048

# Save variables to a json file to export paths known to the build system to
# the test system
$(QEMU_CONFIG): QEMU_BIN := $(QEMU_BIN)
$(QEMU_CONFIG): ATF_OUT_DIR := $(ATF_OUT_DIR)
$(QEMU_CONFIG): LINUX_BUILD_DIR := $(LINUX_BUILD_DIR)
$(QEMU_CONFIG): $(ATF_OUT_COPIED_FILES) $(ATF_SYMLINKS) $(ATF_OUT_DIR)/RPMB_DATA
	@echo generating $@
	@echo '{"linux": "$(LINUX_BUILD_DIR)", "atf": "$(ATF_OUT_DIR)", "qemu": "$(QEMU_BIN)"}' > $@

EXTRA_BUILDDEPS += $(QEMU_CONFIG)

# Create a wrapper script around run-qemu-helper which defaults arguments to
# those needed to run this build
$(RUN_QEMU_SCRIPT): QEMU_BIN := $(QEMU_BIN)
$(RUN_QEMU_SCRIPT): ATF_OUT_DIR := $(ATF_OUT_DIR)
$(RUN_QEMU_SCRIPT): LINUX_BUILD_DIR := $(LINUX_BUILD_DIR)
$(RUN_QEMU_SCRIPT): $(ATF_OUT_COPIED_FILES) $(ATF_SYMLINKS) $(ATF_OUT_DIR)/RPMB_DATA
	@echo generating $@
	@echo "#!/bin/sh" >$@
	@echo 'cd "$(ATF_OUT_DIR)"' >>$@
	@echo 'KERNEL_DIR="$(LINUX_BUILD_DIR)" QEMU="$(QEMU_BIN)" ./run-qemu-helper "$$@"' >>$@
	@chmod +x $@

EXTRA_BUILDDEPS += $(RUN_QEMU_SCRIPT)