add aarch64 support.

mkrtos_script/build_f2.sh

@@ -2,9 +2,12 @@
 
 # export TOOLCHAIN=/home/zhangzheng/mkrtos-tools/gcc/gcc-arm-none-eabi-5_4-2016q3/bin/
 # export TOOLCHAIN_LIB=/home/zhangzheng/mkrtos-tools/gcc/gcc-arm-none-eabi-5_4-2016q3/lib/gcc/arm-none-eabi/5.4.1/armv7-m/
-export TOOLCHAIN=/Users/zhangzheng/gcc-arm-none-eabi-10.3-2021.10/bin/
-export TOOLCHAIN_LIB=/Users/zhangzheng/gcc-arm-none-eabi-10.3-2021.10/lib/gcc/arm-none-eabi/10.3.1/thumb/v7-m/nofp
+# export TOOLCHAIN=/Users/zhangzheng/gcc-arm-none-eabi-10.3-2021.10/bin/
+# export TOOLCHAIN_LIB=/Users/zhangzheng/gcc-arm-none-eabi-10.3-2021.10/lib/gcc/arm-none-eabi/10.3.1/thumb/v7-m/nofp
+export TOOLCHAIN=/home/zhangzheng/gcc-arm/gcc-arm-none-eabi-10.3-2021.10/bin/
+export TOOLCHAIN_LIB=/home/zhangzheng/gcc-arm/gcc-arm-none-eabi-10.3-2021.10/lib/gcc/arm-none-eabi/10.3.1/thumb/v7-m/nofp
 export BOARD=STM32F205
+export CROSS_COMPILER=arm-none-eabi-
 
 set -e
 cmake -G Ninja -B build/$KNL .

mkrtos_script/build_qemu_aarch64.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+export TOOLCHAIN=/home/zhangzheng/gcc-arm-10.3-2021.07-aarch64-aarch64-none-elf/bin/
+export TOOLCHAIN_LIB=/home/zhangzheng/gcc-arm-10.3-2021.07-aarch64-aarch64-none-elf/lib/gcc/aarch64-none-elf/10.3.1
+export BOARD=aarch64_qemu
+export CROSS_COMPILER=aarch64-none-elf-
+
+set -e
+cmake -G Ninja -B build/$KNL .
+cd build/$KNL && ninja

mkrtos_script/debug_aarch64_qemu.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+if [ -z "$1" ]; then
+	echo "usage: ./debug.sh [tcp port]"
+	exit
+fi
+
+# -machine virt,virtualization=on,gic-version=2,highmem=off,secure=off,dumpdtb=virt.dtb
+qemu-system-aarch64 \
+	-machine virt,virtualization=on,gic-version=2,highmem=off,secure=off\
+ 	-cpu cortex-a53 \
+  	-nographic \
+	-m size=2048 \
+	-smp 4\
+   	-kernel $PWD/build/output/bootstrap.elf \
+    -S -gdb tcp::$1