The easiest way to play with aarch64

Http://d.hatena.ne.jp/embedded/20140819/p1:

Although the aarch64 (arm64) Board is difficult to implement, you can use qemu to execute the aarch64 user space program. With docker, you can easily try the aarch64 environment. Compilation can also be executed. Preparation

Use Ubuntu 14.04 (x86_64.

First install docker. For details, refer to here

Then install qemu.

 $ sudo apt-get install qemu-user-static

Start

$ docker run -it ericvh/arm64-ubuntu-dev /bin/bash

As long as the root file system of aarch64 is loaded and executed from dockerhub, the bash prompt can be output.

Confirm the architecture.

root@5031da283529:/# uname -maarch64

GCC can also be used.

root@5031da283529:/# gcc -vUsing built-in specs.COLLECT_GCC=/usr/bin/gccCOLLECT_LTO_WRAPPER=/usr/lib/gcc/aarch64-linux-gnu/4.8/lto-wrapperTarget: aarch64-linux-gnuConfigured with: ../src/configure -v --with-pkgversion=‘Ubuntu/Linaro 4.8.2-19ubuntu1‘ --with-bugurl=file:///usr/share/doc/gcc-4.8/README.Bugs --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.8 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.8 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --disable-libmudflap --disable-libitm --disable-libsanitizer --disable-libquadmath --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-arm64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-arm64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-arm64 --with-arch-directory=arm64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-multiarch --disable-werror --enable-checking=release --build=aarch64-linux-gnu --host=aarch64-linux-gnu --target=aarch64-linux-gnuThread model: posixgcc version 4.8.2 (Ubuntu/Linaro 4.8.2-19ubuntu1) 

root@5031da283529:/root# vi hello.croot@5031da283529:/root# gcc hello.croot@5031da283529:/root# ./a.outHello, worldroot@5031da283529:/root# file ./a.out ./a.out: ELF 64-bit LSB  executable, ARM aarch64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 3.7.0, BuildID[sha1]=a6ee525387725894f818f789acd9b0203adff657, not stripped

Although GDB exists, it is a pity that the following error will be output, and the breakpoint cannot be used normally.

qemu: Unsupported syscall: 117