Adding pattern for looking up baremetal arm binutils

[WittsEnd2]

Pwntools Pull Request

This is an additioinal pattern so that baremetal arm (specifically arm-none-eabi) can be found by pwntools.

Testing

This was primarily tested through manual inspection. I ran the automated tests and it didn't break anything

Target Branch

I am putting this in dev for now; however, since it is a relatively simple one-line code, it could go into stable if desired.

[WittsEnd2]

The reason why I added this was that pwntools couldn't find the packages from the apt package binutils-arm-none-eabi. By adding this one line of code, it was able to find it. This is specific to setting the context architecture to arm and context operating system to baremetal.

[heapcrash]

This needs a CHANGELOG addition

[WittsEnd2]

Added the commit to Changelog. I am having issues undoing an accidental commit to the Dockerfile that I made. Is there a simple way to undo this? I can get my way around Git, but not a Git expert.

[Arusekk]

Try git rebase -i HEAD~7 to reorder and/or improve clarity of your changes, and then during the rebase process try doing git checkout dev path/to/file in order to get the clean version of the file, and then git commit --amend to insert additional changes into a done commit.

[Arusekk]

What if you have both packages installed? Does this break anything or it passes the tests? Also, IIRC bare-metal ARM can be compiled with any *arm*-gcc with correct commandline flags, not only by arm-none-eabi-gcc

[WittsEnd2]

Based on what I have seen from my own testing (and manually tested), which_binutils() returns the first binutils that it recognizes. It will first find linux-gnueabi then the linux-gnueabihf. If those are not there then it tries to find none-eabi. There seems to be no conflict.

[WittsEnd2]

I am going to do another fork and add the changes there just to keep it simple. I am having difficulties fixing my mistakes with the commits. I will close this and create another pull request with just one/two commit.

[WittsEnd2]

Updated pull request for this is numbered 1921