From 20fa8584e31d55b7f2953f917adcc190adab236f Mon Sep 17 00:00:00 2001
From: Christian Cunningham <cc@localhost>
Date: Tue, 31 Aug 2021 08:31:10 -0700
Subject: Initial Commit

---
 Makefile | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 Makefile

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..174ca3f
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,50 @@
+C_SOURCES = $(wildcard src/*.c)
+C_HEADERS = $(wildcard src/*.h)
+C_OBJECTS = ${C_SOURCES:.c=.o}
+C_OBJECTD = ${subst src,obj,${C_OBJECTS}}
+A_SOURCES = $(wildcard src/*.S)
+A_OBJECTS = ${A_SOURCES:.S=.o}
+A_OBJECTD = ${subst src,obj,${A_OBJECTS}}
+
+CROSS = arm-none-eabi
+CC = ${CROSS}-gcc
+AS = ${CROSS}-as
+OBJCOPY = ${CROSS}-objcopy
+QEMU = qemu-system-arm
+GDB = gdb-multiarch
+CFLAGS = -mcpu=cortex-a7 -fpic -ffreestanding -std=gnu99 -O2 -Wall -Wextra -nostdlib -g
+AFLAGS = -mcpu=cortex-a7
+
+.PHONY: clean run run-debug debug export
+
+default: clean build/kernel7.img
+
+build/kernel7.img: build/kernel.elf
+	${OBJCOPY} $< -O binary $@
+
+build/kernel.list: build/kernel.elf
+	${OBJDUMP} -D $< > $@
+
+build/kernel-g.elf: ${A_OBJECTD} ${C_OBJECTD}
+	${CC} -T linker.ld -o $@ ${CFLAGS} $^ -lgcc
+
+build/kernel.elf: ${A_OBJECTD} ${C_OBJECTD}
+	${CC} -T linker.ld -o $@ -ffreestanding -O2 -nostdlib $^ -lgcc
+
+export: build/kernel.list
+	cp build/kernel.elf /mnt/c/Local/
+
+obj/%.o: src/%.S
+	${AS} ${AFLAGS} -g -c $< -o $@
+
+clean:
+	rm -f obj/*.o build/*.elf build/*.list build/*.img
+
+run: build/kernel.elf
+	${QEMU} -M raspi2 -kernel $< -m 1G -serial mon:stdio
+
+run-debug: build/kernel-g.elf
+	${QEMU} -M raspi2 -cpu arm1176 -kernel $< -m 1G -s -S -serial mon:stdio -nographic
+
+debug: build/kernel-g.elf build/kernel.list
+	${GDB} $< -command=gdbinit
-- 
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