From 23e6ba8ef9f9967e0c15c6245fd92cdd5f60fc55 Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <kwojtus@protonmail.com>
Date: Fri, 11 Oct 2019 11:59:59 +0200
Subject: add initial bootloader work

---
 Makefile | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index b1b15c4..da43892 100644
--- a/Makefile
+++ b/Makefile
@@ -17,13 +17,37 @@ kernel.elf : boot.o kernel.o uart.o
 kernel7.img : kernel.elf
 	arm-none-eabi-objcopy $^ -O binary $@
 
+loader_stage2.o : loader_stage2.c
+	arm-none-eabi-gcc $(CFLAGS) -c $^ -o $@
+
+loader_stage2.elf : loader_stage2.o uart.o
+	arm-none-eabi-gcc -T loader_stage2.ld -o $@ -ffreestanding -O2 -nostdlib $^ -lgcc
+
+loader_stage2.img : loader_stage2.elf
+	arm-none-eabi-objcopy $^ -O binary $@
+
+loader_stage2_embeddable.o : loader_stage2.img
+	arm-none-eabi-objcopy -I binary -O elf32-littlearm -B arm --rename-section .data=.rodata $^ $@
+
+loader_stage1.o : loader_stage1.c
+	arm-none-eabi-gcc $(CFLAGS) -c $^ -o $@
+
+loader.elf : boot.o loader_stage1.o uart.o loader_stage2_embeddable.o
+	arm-none-eabi-gcc -T loader_stage1.ld -o $@ -ffreestanding -O2 -nostdlib $^ -lgcc
+
+loader.img : loader.elf
+	arm-none-eabi-objcopy $^ -O binary $@
+
 qemu-elf : kernel.elf
 	qemu-system-arm -m 256 -M raspi2 -serial stdio -kernel $^
 
 qemu-bin : kernel7.img
 	qemu-system-arm -m 256 -M raspi2 -serial stdio -kernel $^
 
+qemu-loader : loader.img
+	qemu-system-arm -m 256 -M raspi2 -serial stdio -kernel $^
+
 clean :
-	-rm kernel7.img kernel.elf boot.o kernel.o uart.o
+	-rm *.img *.elf *.o
 
 .PHONY: all qemu-elf qemu-bin clean
-- 
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