Re: [Pgubook-readers] Help setting up linux on a Mac

[Justis Durkee]

Another option is Docker, https://store.docker.com/editions/community/docker-ce-desktop-mac.

Might need to learn a little about containers, but well worth it as many companies run containers, and it is a good skill to have.

After downloading, installing and starting Docker (runs as a daemon), you can use the 20 MB alpine linux + binutils image to run as, ld and your very own executables.

Brief synopsis:

These 2 steps just need to be done once.

1. Create exec.Dockerfile with the following content
   
   
   FROM alpine:3.7
   RUN apk add --update binutils
   CMD ["$@"]
   
   
2. Build the image (if you make changes to the Dockerfile, you can always re-run this) 
   

$ docker build -t exec -f exec.Dockerfile .

Repeat the following for each program you write.

1. Create your assembler program (exit.s)
   
   
   .section .data
   .section .text
   .globl _start
   _start:
   movl $1, %eax
   movl $1, %ebx
   
   int $0x80
   
   
2. Assemble
   
   docker run --rm -v `pwd`:/tmp/local -t exec as /tmp/local/exit.s -o /tmp/local/exit.o
   
   
3. Link
   
   docker run --rm -v `pwd`:/tmp/local -t exec ld /tmp/local/exit.o -o /tmp/local/exit
   
   
4. Execute

docker run --rm -v `pwd`:/tmp/local -t exec /tmp/local/exit

*The -v `pwd`:/tmp/local option creates a volume (maps your local directory to a directory within the container) that the container can read from/write to.

On Wed, Nov 28, 2018 at 8:48 PM John de la Garza <address@hidden> wrote:

On Wed, Nov 28, 2018 at 02:50:40AM +0000, Davis Pham wrote:
> Hi there,
>
> I’m new to learning programming and I’m currently trying to teach myself using the textbook “Programming from the Ground Up” by Jonathan Bartlett. However I only have access using a MacBook Pro and the textbook teaches theory based on linux. Is it possible for me to install a linux program on Mac so that I would be able to follow the lessons provided? Without having to completely install a new operating system on my Mac?

great book...use 'brew' to install QEMU which will boot Linux

find and boot a Linux image that has dev stuff (which is typical) and
start using gas (gnu assembler) and the other Binutils stuff

you can even install Binutils on your mac, but if you want to do the book
with no changes (like system call numbers) you'll need to boot Linux

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