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#
# Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
AS = $(CROSS_COMPILE)as
LD = $(CROSS_COMPILE)ld
OC = $(CROSS_COMPILE)objcopy
CPP = $(CROSS_COMPILE)cpp
BUILD_DIR = ../../$(BUILD_PLAT)/romlib
LIB_DIR = ../../$(BUILD_PLAT)/lib
WRAPPER_DIR = ../../$(BUILD_PLAT)/libwrapper
LIBS = -lmbedtls -lfdt -lc
INC = $(INCLUDES:-I%=-I../../%)
PPFLAGS = $(INC) $(DEFINES) -P -D__ASSEMBLY__ -D__LINKER__ -MD -MP -MT $(BUILD_DIR)/romlib.ld
OBJS = $(BUILD_DIR)/jmptbl.o $(BUILD_DIR)/init.o
MAPFILE = ../../$(BUILD_PLAT)/romlib/romlib.map
V ?= 0
ifeq ($(V),0)
Q := @
else
Q :=
endif
LDFLAGS := --gc-sections -O1
ifeq ($(DEBUG),1)
LDFLAGS += -Map=$(MAPFILE)
endif
ifeq (${ARM_ARCH_MINOR},0)
ASFLAGS = -march=armv8-a
else
ASFLAGS = -march=armv8.${ARM_ARCH_MINOR}-a
endif
.PHONY: all clean distclean
all: $(BUILD_DIR)/romlib.bin $(LIB_DIR)/libwrappers.a
%.o: %.s
@echo " AS $@"
$(Q)$(AS) $(ASFLAGS) -o $@ $<
$(BUILD_DIR)/%.o: %.s
@echo " AS $@"
$(Q)$(AS) $(ASFLAGS) -o $@ $<
$(BUILD_DIR)/romlib.ld: romlib.ld.S
@echo " PP $@"
$(Q)$(CPP) $(PPFLAGS) -o $@ romlib.ld.S
$(BUILD_DIR)/romlib.elf: $(OBJS) $(BUILD_DIR)/romlib.ld
@echo " LD $@"
$(Q)$(LD) -T $(BUILD_DIR)/romlib.ld -L$(LIB_DIR) $(LDFLAGS) -o $@ $(OBJS) $(LIBS)
$(BUILD_DIR)/romlib.bin: $(BUILD_DIR)/romlib.elf
@echo " BIN $@"
$(Q)$(OC) -O binary $(BUILD_DIR)/romlib.elf $@
$(WRAPPER_DIR)/jmpvar.s: $(BUILD_DIR)/romlib.elf
@echo " VAR $@"
$(Q)./genvar.sh -o $@ $(BUILD_DIR)/romlib.elf
$(LIB_DIR)/libwrappers.a: $(BUILD_DIR)/jmptbl.i $(WRAPPER_DIR)/jmpvar.o
@echo " AR $@"
$(Q)./genwrappers.sh -b $(WRAPPER_DIR) -o $@ --bti=$(ENABLE_BTI) --asflags=$(ASFLAGS) $(BUILD_DIR)/jmptbl.i
$(BUILD_DIR)/jmptbl.i: $(BUILD_DIR)/jmptbl.s
$(BUILD_DIR)/jmptbl.s: ../../$(PLAT_DIR)/jmptbl.i
@echo " TBL $@"
$(Q)./gentbl.sh -o $@ -b $(BUILD_DIR) --bti=$(ENABLE_BTI) ../../$(PLAT_DIR)/jmptbl.i
clean:
@rm -f $(BUILD_DIR)/*
-include $(BUILD_DIR)/romlib.d