| CMDLINE_SIZE ?= 0x400 |
| BOOTSTUB_SIZE ?= 8192 |
| |
| BOOTSTUB_SRC_FILES := bootstub.c sfi.c ssp-uart.c imr_toc.c spi-uart.c |
| BOOTSTUB_SRC_FILES_x86 := head.S e820_bios.S |
| |
| ifeq ($(TARGET_IS_64_BIT),true) |
| BOOTSTUB_2ND_ARCH_VAR_PREFIX := $(TARGET_2ND_ARCH_VAR_PREFIX) |
| else |
| BOOTSTUB_2ND_ARCH_VAR_PREFIX := |
| endif |
| |
| LOCAL_SRC_FILES := $(BOOTSTUB_SRC_FILES) |
| LOCAL_SRC_FILES_x86 := $(BOOTSTUB_SRC_FILES_x86) |
| ANDROID_TOOLCHAIN_FLAGS := -m32 -ffreestanding |
| LOCAL_CFLAGS := $(ANDROID_TOOLCHAIN_FLAGS) -Wall -O1 -DCMDLINE_SIZE=${CMDLINE_SIZE} -DAOSP_HEADER_ADDRESS=$(BOOTSTUB_AOSP_HEADER_ADDRESS) $(BOOTSTUB_CFLAGS) |
| LOCAL_ASFLAGS := -DSTACK_OFFSET=$(BOOTSTUB_STACK_OFFSET) |
| LOCAL_C_INCLUDES = system/core/mkbootimg |
| LOCAL_MODULE := $(BOOTSTUB_BINARY).bin |
| LOCAL_MODULE_TAGS := optional |
| LOCAL_MULTILIB := 32 |
| LOCAL_MODULE_PATH := $(PRODUCT_OUT) |
| LOCAL_MODULE_CLASS := EXECUTABLES |
| LOCAL_FORCE_STATIC_EXECUTABLE := true |
| LOCAL_2ND_ARCH_VAR_PREFIX := $(BOOTSTUB_2ND_ARCH_VAR_PREFIX) |
| |
| include $(BUILD_SYSTEM)/binary.mk |
| |
| $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_GLOBAL_CFLAGS := $(LOCAL_CFLAGS) |
| $(LOCAL_BUILT_MODULE) : PRIVATE_ELF_FILE := $(intermediates)/$(PRIVATE_MODULE).elf |
| $(LOCAL_BUILT_MODULE) : PRIVATE_LINK_SCRIPT := $(LOCAL_PATH)/2ndbootloader.lds |
| $(LOCAL_BUILT_MODULE) : BOOTSTUB_OBJS := $(patsubst %.c, %.o , $(LOCAL_SRC_FILES)) |
| $(LOCAL_BUILT_MODULE) : BOOTSTUB_OBJS += $(patsubst %.S, %.o , $(LOCAL_SRC_FILES_x86)) |
| $(LOCAL_BUILT_MODULE) : BOOTSTUB_OBJS := $(addprefix $(intermediates)/, $(BOOTSTUB_OBJS)) |
| $(LOCAL_BUILT_MODULE) : BOOTSTUB_ENTRY := $(BOOTSTUB_ENTRY) |
| |
| $(LOCAL_BUILT_MODULE): $(all_objects) |
| $(hide) mkdir -p $(dir $@) |
| @echo "Generating bootstub.bin: $@" |
| $(hide) $(TARGET_LD) \ |
| -m elf_i386 \ |
| -T $(PRIVATE_LINK_SCRIPT) --defsym=BOOTSTUB_ENTRY=$(BOOTSTUB_ENTRY) \ |
| $(BOOTSTUB_OBJS) \ |
| -o $(PRIVATE_ELF_FILE) |
| $(hide) $(TARGET_OBJCOPY) -O binary -R .note -R .comment -S $(PRIVATE_ELF_FILE) $@ |
| |
| # Then assemble the final bootstub file |
| |
| bootstub_full := $(PRODUCT_OUT)/$(BOOTSTUB_BINARY) |
| $(BOOTSTUB_BINARY)_CHECK_BOOTSTUB_SIZE : $(LOCAL_BUILT_MODULE) |
| $(hide) ACTUAL_SIZE=`$(call get-file-size,$<)`; \ |
| if [ "$$ACTUAL_SIZE" -gt "$(BOOTSTUB_SIZE)" ]; then \ |
| echo "$<: $$ACTUAL_SIZE exceeds size limit of $(BOOTSTUB_SIZE) bytes, aborting."; \ |
| exit 1; \ |
| fi |
| |
| $(bootstub_full) : $(LOCAL_BUILT_MODULE) $(BOOTSTUB_BINARY)_CHECK_BOOTSTUB_SIZE |
| @echo "Generating bootstub: $@" |
| $(hide) cat $< /dev/zero | dd bs=$(BOOTSTUB_SIZE) count=1 > $@ |
| |
