38 lines
1.0 KiB
Makefile
38 lines
1.0 KiB
Makefile
# Copyright 2020 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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CROSS_COMPILE ?= arm-none-eabi-
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CC = $(CROSS_COMPILE)gcc
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OBJCOPY = $(CROSS_COMPILE)objcopy
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CFLAGS = -Os -g -mcpu=cortex-a9
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ASFLAGS = $(CFLAGS) -Wa,-mcpu=cortex-a9+mp
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LDSCRIPT = bootrom.ld
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LDFLAGS = -Wl,--build-id=none -static -nostdlib -T $(LDSCRIPT)
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OBJS := start.o image.o
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.PHONY: all clean
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all: npcm7xx_bootrom.bin
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clean:
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rm -f *.o *.bin *.elf
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npcm7xx_bootrom.bin: npcm7xx_bootrom.elf
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$(OBJCOPY) -O binary $< $@
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npcm7xx_bootrom.elf: $(OBJS) $(LDSCRIPT)
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$(CC) -o $@ $(LDFLAGS) $(OBJS)
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