| # Copyright 2018 The Fuchsia Authors |
| # |
| # Use of this source code is governed by a MIT-style |
| # license that can be found in the LICENSE file or at |
| # https://opensource.org/licenses/MIT |
| |
| ifeq ($(PLATFORM_USE_SHIM),true) |
| |
| ifeq ($(PLATFORM_BOARD_NAME),) |
| $(error PLATFORM_BOARD_NAME not defined) |
| endif |
| |
| BOARD_ZIRCON_BOOTIMAGE := $(BUILDDIR)/$(PLATFORM_BOARD_NAME)-zircon-bootimage.bin |
| |
| ifeq ($(TARGET),arm64) |
| include kernel/target/arm64/boot-shim/rules.mk |
| else |
| $(error PLATFORM_USE_SHIM not supported for target $(TARGET)) |
| endif |
| |
| BOARD_BOOT_SHIM_OPTS := --header $(BOOT_SHIM_BIN) --header-align $(KERNEL_ALIGN) |
| |
| # capture board specific variables for the build rules |
| $(BOARD_ZIRCON_BOOTIMAGE): BOARD_ZIRCON_BOOTIMAGE:=$(BOARD_ZIRCON_BOOTIMAGE) |
| $(BOARD_ZIRCON_BOOTIMAGE): BOARD_BOOT_SHIM_OPTS:=$(BOARD_BOOT_SHIM_OPTS) |
| |
| # prepend shim to the zircon bootimage |
| $(BOARD_ZIRCON_BOOTIMAGE): $(MKBOOTFS) $(ZIRCON_BOOTIMAGE) $(BOOT_SHIM_BIN) |
| $(call BUILDECHO,generating $@) |
| @$(MKDIR) |
| $(NOECHO)$(MKBOOTFS) -o $@ $(ZIRCON_BOOTIMAGE) $(BOARD_BOOT_SHIM_OPTS) |
| |
| GENERATED += $(BOARD_ZIRCON_BOOTIMAGE) |
| EXTRA_BUILDDEPS += $(BOARD_ZIRCON_BOOTIMAGE) |
| |
| # clear variables that were passed in to us |
| PLATFORM_BOARD_NAME := |
| PLATFORM_USE_SHIM := |
| |
| # clear variables we set here |
| BOARD_ZIRCON_BOOTIMAGE := |
| BOARD_BOOT_SHIM_OPTS := |
| |
| endif # PLATFORM_USE_SHIM |
