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CLANG ?= clang
LD_LLD ?= ld.lld
# SoC selects which stage0 tree is built. The trees are intentionally SEPARATE
# COPIES rather than one tree with a platform abstraction: the MediaTek port is
# the only one with hardware that has been booted, and it can no longer be
# tested (the A16 it was written for is gone). Refactoring shared code you
# cannot run is how a working port quietly rots — so mtk is frozen, and qcom
# gets its own copy of the SoC-neutral parts (ext2, FDT, extlinux, zlib).
#
# make -> MediaTek (stage0/aarch64, unchanged)
# make SOC=qcom -> Qualcomm (stage0/qcom, SM6125/trinket)
SOC ?= mtk
ifeq ($(SOC),qcom)
STAGE0_DIR := stage0/qcom
else
STAGE0_DIR := stage0/aarch64
endif
STAGE0_OUT_DIR := out/stage0
STAGE0_ELF := $(STAGE0_OUT_DIR)/mk-stage0.elf
STAGE0_BIN := $(STAGE0_OUT_DIR)/mk-stage0.bin
ifeq ($(SOC),qcom)
# The Qualcomm tree is a single stage0 image: unlike the MediaTek build there is
# no separate kernel_payload with its own main, because ABL hands off with the
# ARM64 Linux boot protocol and this IS the payload.
STAGE0_OBJS := \
$(STAGE0_OUT_DIR)/entry.o \
$(STAGE0_OUT_DIR)/qcom_chainload.o \
$(STAGE0_OUT_DIR)/stage0.o \
$(STAGE0_OUT_DIR)/mk_boot.o \
$(STAGE0_OUT_DIR)/mk_ext2.o \
$(STAGE0_OUT_DIR)/mk_fdt.o \
$(STAGE0_OUT_DIR)/mk_zlib_gzip.o \
$(STAGE0_OUT_DIR)/qcom_storage.o \
$(STAGE0_OUT_DIR)/qcom_uart.o \
$(STAGE0_OUT_DIR)/qcom_fb.o \
$(STAGE0_OUT_DIR)/qcom_spmi.o \
$(STAGE0_OUT_DIR)/qcom_keys.o \
$(STAGE0_OUT_DIR)/qcom_menu.o \
$(STAGE0_OUT_DIR)/qcom_usb.o \
$(STAGE0_OUT_DIR)/qcom_gcc.o \
$(STAGE0_OUT_DIR)/mk_menu.o \
$(STAGE0_OUT_DIR)/qcom_compat.o \
$(STAGE0_OUT_DIR)/inflate.o \
$(STAGE0_OUT_DIR)/inffast.o \
$(STAGE0_OUT_DIR)/inftrees.o \
$(STAGE0_OUT_DIR)/adler32.o \
$(STAGE0_OUT_DIR)/zutil.o
else
STAGE0_OBJS := \
$(STAGE0_OUT_DIR)/entry.o \
$(STAGE0_OUT_DIR)/stage0.o
endif
STAGE0_KPAYLOAD_ELF := $(STAGE0_OUT_DIR)/mk-kpayload.elf
STAGE0_KPAYLOAD_BIN := $(STAGE0_OUT_DIR)/mk-kpayload.bin
STAGE0_KPAYLOAD_GZ := $(STAGE0_OUT_DIR)/mk-kpayload.bin.gz
STAGE0_KPAYLOAD_OBJS := \
$(STAGE0_OUT_DIR)/kernel_payload.o \
$(STAGE0_OUT_DIR)/kernel_payload_main.o \
$(STAGE0_OUT_DIR)/mk_boot.o \
$(STAGE0_OUT_DIR)/mk_fdt.o \
$(STAGE0_OUT_DIR)/mk_wdt.o \
$(STAGE0_OUT_DIR)/mk_pmic.o \
$(STAGE0_OUT_DIR)/mk_ext2.o \
$(STAGE0_OUT_DIR)/mk_zlib_gzip.o \
$(STAGE0_OUT_DIR)/zlib_inflate.o \
$(STAGE0_OUT_DIR)/zlib_inffast.o \
$(STAGE0_OUT_DIR)/zlib_inftrees.o \
$(STAGE0_OUT_DIR)/zlib_zutil.o \
$(STAGE0_OUT_DIR)/zlib_adler32.o \
$(STAGE0_OUT_DIR)/mtk_panel.o \
$(STAGE0_OUT_DIR)/mtk_display.o \
$(STAGE0_OUT_DIR)/mtk_gpio.o \
$(STAGE0_OUT_DIR)/mtk_i2c.o \
$(STAGE0_OUT_DIR)/mtk_dsi.o \
$(STAGE0_OUT_DIR)/mtk_pwm.o \
$(STAGE0_OUT_DIR)/mtk_usb.o \
$(STAGE0_OUT_DIR)/mk_ui.o \
$(STAGE0_OUT_DIR)/mk_menu.o
DEVICE ?= oppo-a16
DEVICE_PROFILE_MK := devices/$(DEVICE)/profile.mk
BOOTIMG_OUT_DIR := out/bootimg
BOOTIMG_NOKERNEL := $(BOOTIMG_OUT_DIR)/mk-$(DEVICE)-boot.img
BOOTIMG_KERNEL_PAYLOAD ?= $(STAGE0_KPAYLOAD_GZ)
PACK_BOOTIMG ?= ./tools/pack-bootimg.sh
ifneq ("$(wildcard $(DEVICE_PROFILE_MK))","")
include $(DEVICE_PROFILE_MK)
endif
STAGE0_KPAYLOAD_CPPFLAGS :=
ifdef PHOENIX_BOOTSTAGE
STAGE0_KPAYLOAD_CPPFLAGS += -DMK_DEVICE_PHOENIX_BOOTSTAGE=\"$(PHOENIX_BOOTSTAGE)\"
endif
ifdef PHOENIX_PRIMARY_PARTITION
STAGE0_KPAYLOAD_CPPFLAGS += -DMK_DEVICE_PHOENIX_PRIMARY_PARTITION=\"$(PHOENIX_PRIMARY_PARTITION)\"
endif
ifdef PHOENIX_FALLBACK_PARTITION
STAGE0_KPAYLOAD_CPPFLAGS += -DMK_DEVICE_PHOENIX_FALLBACK_PARTITION=\"$(PHOENIX_FALLBACK_PARTITION)\"
endif
ifdef PHOENIX_UFS_OFFSET
STAGE0_KPAYLOAD_CPPFLAGS += -DMK_DEVICE_PHOENIX_UFS_OFFSET=$(PHOENIX_UFS_OFFSET)
endif
ifdef PHOENIX_EMMC_OFFSET
STAGE0_KPAYLOAD_CPPFLAGS += -DMK_DEVICE_PHOENIX_EMMC_OFFSET=$(PHOENIX_EMMC_OFFSET)
endif
ifdef PHOENIX_RECORD_MAGIC
STAGE0_KPAYLOAD_CPPFLAGS += -DMK_DEVICE_PHOENIX_RECORD_MAGIC=\"$(PHOENIX_RECORD_MAGIC)\"
endif
ifdef BCB_PARA_LBA
STAGE0_KPAYLOAD_CPPFLAGS += -DMK_DEVICE_BCB_PARA_LBA=$(BCB_PARA_LBA)
endif
ifdef BOOT_LABEL
STAGE0_KPAYLOAD_CPPFLAGS += -DMK_DEVICE_BOOT_LABEL=\"$(BOOT_LABEL)\"
endif
ifdef ROOT_LABEL
STAGE0_KPAYLOAD_CPPFLAGS += -DMK_DEVICE_ROOT_LABEL=\"$(ROOT_LABEL)\"
endif
ifdef LCM_BOOT_NAME
STAGE0_KPAYLOAD_CPPFLAGS += -DMK_DEVICE_LCM_BOOT_NAME=\"$(LCM_BOOT_NAME)\"
endif
ifeq ($(HAS_FASTBOOT_USB),y)
STAGE0_KPAYLOAD_CPPFLAGS += -DMK_DEVICE_HAS_FASTBOOT_USB=1
endif
.PHONY: all clean stage0 stage0-clean stage0-kpayload bootimg-nokernel
all: stage0 bootimg-nokernel
# On Qualcomm there is no separate kernel_payload: ABL hands off with the ARM64
# Linux boot protocol, so stage0 IS the payload and builds as one image.
ifeq ($(SOC),qcom)
stage0: $(STAGE0_ELF) $(STAGE0_BIN)
else
stage0: $(STAGE0_ELF) $(STAGE0_BIN) stage0-kpayload
endif
$(STAGE0_OUT_DIR):
mkdir -p $@
$(BOOTIMG_OUT_DIR):
mkdir -p $@
$(STAGE0_OUT_DIR)/entry.o: $(STAGE0_DIR)/entry.S | $(STAGE0_OUT_DIR)
$(CLANG) -target aarch64-none-elf -ffreestanding -fno-stack-protector -nostdlib -c $< -o $@
$(STAGE0_OUT_DIR)/stage0.o: $(STAGE0_DIR)/stage0.c | $(STAGE0_OUT_DIR)
$(CLANG) -target aarch64-none-elf -ffreestanding -fno-builtin -fno-stack-protector -nostdlib -std=c11 -Wall -Wextra -Werror -O2 -c $< -o $@
# qcom links against kernel_payload.ld: the image ABL loads must carry the ARM64
# Linux header and sit at text_offset, which linker.ld (a bare stage0 script)
# does not arrange.
ifeq ($(SOC),qcom)
$(STAGE0_ELF): $(STAGE0_OBJS) $(STAGE0_DIR)/kernel_payload.ld
$(LD_LLD) -nostdlib -T $(STAGE0_DIR)/kernel_payload.ld -o $@ $(STAGE0_OBJS)
else
$(STAGE0_ELF): $(STAGE0_OBJS) $(STAGE0_DIR)/linker.ld
$(LD_LLD) -nostdlib -T $(STAGE0_DIR)/linker.ld -o $@ $(STAGE0_OBJS)
endif
$(STAGE0_BIN): $(STAGE0_ELF)
llvm-objcopy -O binary $< $@
stage0-kpayload: $(STAGE0_KPAYLOAD_ELF) $(STAGE0_KPAYLOAD_BIN) $(STAGE0_KPAYLOAD_GZ)
bootimg-nokernel: stage0-kpayload | $(BOOTIMG_OUT_DIR)
$(PACK_BOOTIMG) --device "$(DEVICE)" --kernel "$(BOOTIMG_KERNEL_PAYLOAD)" --out "$(BOOTIMG_NOKERNEL)"
@echo "bootimg-nokernel: $(BOOTIMG_NOKERNEL)"
$(STAGE0_OUT_DIR)/kernel_payload.o: $(STAGE0_DIR)/kernel_payload.S | $(STAGE0_OUT_DIR)
$(CLANG) -target aarch64-none-elf -ffreestanding -fno-stack-protector -nostdlib -c $< -o $@
$(STAGE0_OUT_DIR)/kernel_payload_main.o: $(STAGE0_DIR)/kernel_payload_main.c $(STAGE0_DIR)/mtk_panel.h $(STAGE0_DIR)/mtk_display.h stage0/common/peacock_logo_asset.h | $(STAGE0_OUT_DIR)
$(CLANG) $(STAGE0_CFLAGS) $(STAGE0_KPAYLOAD_CPPFLAGS) -c $< -o $@
# MediaTek-only: prerequisites name headers that exist only in that tree.
ifneq ($(SOC),qcom)
$(STAGE0_OUT_DIR)/mk_boot.o: $(STAGE0_DIR)/mk_boot.c $(STAGE0_DIR)/mk_boot.h $(STAGE0_DIR)/mk_ext2.h $(STAGE0_DIR)/mk_ui.h | $(STAGE0_OUT_DIR)
$(CLANG) $(STAGE0_CFLAGS) $(STAGE0_KPAYLOAD_CPPFLAGS) -c $< -o $@
endif
$(STAGE0_OUT_DIR)/mk_fdt.o: $(STAGE0_DIR)/mk_fdt.c $(STAGE0_DIR)/mk_fdt.h $(STAGE0_DIR)/mk_common.h | $(STAGE0_OUT_DIR)
$(CLANG) $(STAGE0_CFLAGS) $(STAGE0_KPAYLOAD_CPPFLAGS) -c $< -o $@
$(STAGE0_OUT_DIR)/mk_wdt.o: $(STAGE0_DIR)/mk_wdt.c $(STAGE0_DIR)/mk_wdt.h $(STAGE0_DIR)/mk_common.h | $(STAGE0_OUT_DIR)
$(CLANG) $(STAGE0_CFLAGS) $(STAGE0_KPAYLOAD_CPPFLAGS) -c $< -o $@
$(STAGE0_OUT_DIR)/mk_pmic.o: $(STAGE0_DIR)/mk_pmic.c $(STAGE0_DIR)/mk_pmic.h $(STAGE0_DIR)/mk_common.h | $(STAGE0_OUT_DIR)
$(CLANG) $(STAGE0_CFLAGS) $(STAGE0_KPAYLOAD_CPPFLAGS) -c $< -o $@
# MediaTek-only: prerequisites name headers that exist only in that tree.
ifneq ($(SOC),qcom)
$(STAGE0_OUT_DIR)/mk_ext2.o: $(STAGE0_DIR)/mk_ext2.c $(STAGE0_DIR)/mk_ext2.h $(STAGE0_DIR)/mtk_storage.h | $(STAGE0_OUT_DIR)
$(CLANG) $(STAGE0_CFLAGS) $(STAGE0_KPAYLOAD_CPPFLAGS) -c $< -o $@
endif
STAGE0_CFLAGS := -target aarch64-none-elf -ffreestanding -fno-builtin -fno-stack-protector -fno-pic -nostdlib -std=c11 -Wall -Wextra -Werror -O2 -mgeneral-regs-only -Istage0/common
ZLIB_STAGE0_CFLAGS := -target aarch64-none-elf -ffreestanding -fno-builtin -fno-stack-protector -fno-pic -nostdlib -std=c11 -Wall -Wextra -Werror -Wno-unused-parameter -Wno-sign-compare -O2 -mgeneral-regs-only -DZ_SOLO -I$(STAGE0_DIR)
$(STAGE0_OUT_DIR)/mk_zlib_gzip.o: $(STAGE0_DIR)/mk_zlib_gzip.c $(STAGE0_DIR)/mk_zlib_gzip.h | $(STAGE0_OUT_DIR)
$(CLANG) $(ZLIB_STAGE0_CFLAGS) -c $< -o $@
$(STAGE0_OUT_DIR)/zlib_inflate.o: $(STAGE0_DIR)/inflate.c | $(STAGE0_OUT_DIR)
$(CLANG) $(ZLIB_STAGE0_CFLAGS) -c $< -o $@
$(STAGE0_OUT_DIR)/zlib_inffast.o: $(STAGE0_DIR)/inffast.c | $(STAGE0_OUT_DIR)
$(CLANG) $(ZLIB_STAGE0_CFLAGS) -c $< -o $@
$(STAGE0_OUT_DIR)/zlib_inftrees.o: $(STAGE0_DIR)/inftrees.c | $(STAGE0_OUT_DIR)
$(CLANG) $(ZLIB_STAGE0_CFLAGS) -c $< -o $@
$(STAGE0_OUT_DIR)/zlib_zutil.o: $(STAGE0_DIR)/zutil.c | $(STAGE0_OUT_DIR)
$(CLANG) $(ZLIB_STAGE0_CFLAGS) -c $< -o $@
$(STAGE0_OUT_DIR)/zlib_adler32.o: $(STAGE0_DIR)/adler32.c | $(STAGE0_OUT_DIR)
$(CLANG) $(ZLIB_STAGE0_CFLAGS) -c $< -o $@
$(STAGE0_OUT_DIR)/mtk_panel.o: $(STAGE0_DIR)/mtk_panel.c $(STAGE0_DIR)/mtk_panel.h | $(STAGE0_OUT_DIR)
$(CLANG) $(STAGE0_CFLAGS) -c $< -o $@
$(STAGE0_OUT_DIR)/mtk_display.o: $(STAGE0_DIR)/mtk_display.c $(STAGE0_DIR)/mtk_display.h $(STAGE0_DIR)/mtk_panel.h $(STAGE0_DIR)/mtk_gpio.h $(STAGE0_DIR)/mtk_i2c.h $(STAGE0_DIR)/mtk_dsi.h $(STAGE0_DIR)/mtk_pwm.h $(STAGE0_DIR)/panel_nt35695b_init.h | $(STAGE0_OUT_DIR)
$(CLANG) $(STAGE0_CFLAGS) -c $< -o $@
$(STAGE0_OUT_DIR)/mtk_gpio.o: $(STAGE0_DIR)/mtk_gpio.c $(STAGE0_DIR)/mtk_gpio.h $(STAGE0_DIR)/mtk_panel.h | $(STAGE0_OUT_DIR)
$(CLANG) $(STAGE0_CFLAGS) -c $< -o $@
$(STAGE0_OUT_DIR)/mtk_i2c.o: $(STAGE0_DIR)/mtk_i2c.c $(STAGE0_DIR)/mtk_i2c.h | $(STAGE0_OUT_DIR)
$(CLANG) $(STAGE0_CFLAGS) -c $< -o $@
$(STAGE0_OUT_DIR)/mtk_dsi.o: $(STAGE0_DIR)/mtk_dsi.c $(STAGE0_DIR)/mtk_dsi.h $(STAGE0_DIR)/mtk_panel.h | $(STAGE0_OUT_DIR)
$(CLANG) $(STAGE0_CFLAGS) -c $< -o $@
$(STAGE0_OUT_DIR)/mtk_pwm.o: $(STAGE0_DIR)/mtk_pwm.c $(STAGE0_DIR)/mtk_pwm.h | $(STAGE0_OUT_DIR)
$(CLANG) $(STAGE0_CFLAGS) -c $< -o $@
$(STAGE0_OUT_DIR)/mtk_usb.o: $(STAGE0_DIR)/mtk_usb.c $(STAGE0_DIR)/mtk_usb.h | $(STAGE0_OUT_DIR)
$(CLANG) $(STAGE0_CFLAGS) -c $< -o $@
# SoC-independent code shared with the Qualcomm port.
$(STAGE0_OUT_DIR)/mk_menu.o: stage0/common/mk_menu.c stage0/common/mk_menu.h stage0/common/peacock_logo_asset.h | $(STAGE0_OUT_DIR)
$(CLANG) $(STAGE0_CFLAGS) -c $< -o $@
$(STAGE0_OUT_DIR)/mk_ui.o: $(STAGE0_DIR)/mk_ui.c $(STAGE0_DIR)/mk_ui.h $(STAGE0_DIR)/mk_common.h stage0/common/peacock_logo_asset.h | $(STAGE0_OUT_DIR)
$(CLANG) $(STAGE0_CFLAGS) $(STAGE0_KPAYLOAD_CPPFLAGS) -c $< -o $@
$(STAGE0_KPAYLOAD_ELF): $(STAGE0_KPAYLOAD_OBJS) $(STAGE0_DIR)/kernel_payload.ld
$(LD_LLD) -nostdlib -T $(STAGE0_DIR)/kernel_payload.ld -o $@ $(STAGE0_KPAYLOAD_OBJS)
$(STAGE0_KPAYLOAD_BIN): $(STAGE0_KPAYLOAD_ELF)
llvm-objcopy -O binary $< $@
$(STAGE0_KPAYLOAD_GZ): $(STAGE0_KPAYLOAD_BIN)
gzip -n -c $< > $@
stage0-clean:
rm -rf $(STAGE0_OUT_DIR)
clean:
rm -rf $(STAGE0_OUT_DIR)
# ---------------------------------------------------------------------------
# Qualcomm (SOC=qcom) build rules.
#
# The MediaTek tree uses explicit per-object rules naming each header; those
# stay authoritative for it. The qcom tree is small and uniform, so pattern
# rules are enough — and keeping them inside this guard means nothing here can
# change how the MediaTek image is built.
ifeq ($(SOC),qcom)
QCOM_CFLAGS := -target aarch64-none-elf -ffreestanding -fno-builtin \
-fno-stack-protector -fno-pic -nostdlib -std=c11 -Wall -Wextra -Werror \
-Wno-unused-parameter -Wno-sign-compare -O2 -mgeneral-regs-only \
-DZ_SOLO -I$(STAGE0_DIR) -Istage0/common
$(STAGE0_OUT_DIR)/%.o: $(STAGE0_DIR)/%.S | $(STAGE0_OUT_DIR)
$(CLANG) -target aarch64-none-elf -ffreestanding -fno-stack-protector \
-nostdlib -c $< -o $@
$(STAGE0_OUT_DIR)/%.o: $(STAGE0_DIR)/%.c | $(STAGE0_OUT_DIR)
$(CLANG) $(QCOM_CFLAGS) -c $< -o $@
# SoC-independent code shared with the MediaTek port. Kept in its own directory
# so neither tree owns it and neither can quietly fork it.
$(STAGE0_OUT_DIR)/%.o: stage0/common/%.c | $(STAGE0_OUT_DIR)
$(CLANG) $(QCOM_CFLAGS) -c $< -o $@
endif