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P := $(shell dirname $(realpath $(lastword $(MAKEFILE_LIST))))
LIBDIR ?= $(P)/../
OBJCOPY ?= llvm-objcopy
CC = clang
CFLAGS = -g -target riscv32-unknown-none-elf -march=rv32iczmmul -mabi=ilp32 -mcmodel=medany \
-static -std=gnu99 -O2 -ffast-math -fno-common -fno-builtin-printf \
-fno-builtin-putchar -nostdlib -mno-relax -flto \
-Wall -Werror=implicit-function-declaration \
-I $(LIBDIR)/include -I $(LIBDIR) \
# -D QEMU_DEBUG
INCLUDE=$(LIBDIR)/include
LDFLAGS=-T $(LIBDIR)/app.lds -L $(LIBDIR) -lcommon -lcrt0
.PHONY: all
all: blue.bin
# Turn elf into bin for device
%.bin: %.elf
$(OBJCOPY) --input-target=elf32-littleriscv --output-target=binary $^ $@
chmod a-x $@
BLUEOBJS=blue.o
blue.elf: blue.o
$(CC) $(CFLAGS) $(BLUEOBJS) $(LDFLAGS) -I $(LIBDIR) -o $@
.PHONY: clean
clean:
rm -f blue.bin blue.elf $(BLUEOBJS)
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