失业在家写写lab练手，懒得配环境，参考这个仓库直接docker pull！非常方便，就是镜像有点大。
顺利写了data lab.然而bomb里用gdb run,我的电脑是m1 mac arm64,拉的镜像是amd64：

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(gdb) run
Starting program: /home/csapp/project/bomb/bomb 
warning: Error disabling address space randomization: Operation not permitted
warning: Unable to find dynamic linker breakpoint function.
GDB will be unable to debug shared library initializers
and track explicitly loaded dynamic code.
[New LWP 352]
qemu-x86_64: Could not open '/lib64/ld-linux-x86-64.so.2': No such file or directory
[LWP 352 exited]
[Inferior 1 (process 349) exited with code 0377]

报错了，怎么会是🤯
docker run加上--security-opt seccomp=unconfined,参考这里

再用gdb调试，还是报错。

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(gdb) run
Starting program: /home/csapp/project/bomb/bomb 
warning: Could not trace the inferior process.
warning: ptrace: Function not implemented
During startup program exited with code 127.

arm64的机器上跑amd64 ubuntu，qemu没法直接用gdb，可以参考qemu的GDB usage文档。我试了，没成功，container运行的时候就打开了qemu，不会，只能重新打个amd64的image。

修改Dockerfile：
ARG arch_name=arm64
注意code-server的url需要更新到https://github.com/coder/code-server/releases/download/v4.8.1/code-server

这样就是arm64的环境了，然而还是报错

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qemu-x86_64: Could not open '/lib64/ld-linux-x86-64.so.2': No such file or directory

装个libc6-amd64-cross就好了，参考这里，Dockerfile里加上

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RUN apt-get install -y wget unzip
RUN apt-get install -y libc6-amd64-cross

RUN ln -s /usr/x86_64-linux-gnu/lib64/ /lib64

ENV LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/lib64:/usr/x86_64-linux-gnu/lib"

虽然gdb还是会报错，不过终于能run起来了。搞了一天，docker build太慢了= =

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warning: `/lib64/ld-linux-x86-64.so.2': Shared library architecture unknown is not compatible with target architecture aarch64.