nuttx/libs/libc/machine/arm64
xuxin19 524425573e CMake:init arm64 CMake qemu-armv8a build
this patch contains arm64 Toolchain, arch common, qemu board and arm64 libc modifications.
support using CMake to compile the qemu executable file.

```
 cmake -B build -DBOARD_CONFIG=qemu-armv8a:nsh -GNinja
 cmake --build build -t menuconfig
 cmake --build build
 qemu-system-aarch64 -cpu cortex-a53 -nographic -machine virt,virtualization=on,gic-version=3 -net none -chardev stdio,id=con,mux=on -serial chardev:con -mon chardev=con,mode=readline -kernel ./nuttx
```
Signed-off-by: xuxin19 <xuxin19@xiaomi.com>
2023-12-27 07:27:17 -08:00
..
gnu CMake:init arm64 CMake qemu-armv8a build 2023-12-27 07:27:17 -08:00
arch_elf.c
CMakeLists.txt CMake:init arm64 CMake qemu-armv8a build 2023-12-27 07:27:17 -08:00
Kconfig
Make.defs