Add support to aarch64

[KelvinChung2000]

Hi,

Is it possible to make the tool support for aarch64 as well? I have done some research, and aarch64 and arm64 should be the same thing. Now the tool, when seeing the binary is built to aarch64, will fail to go forward.

[bharadwajy]

Thanks for your interest. While it is very desirable to support ARM[32 or 64], I would highly appreciate any help with this. At present, I do not have the time to implement this.

[KelvinChung2000]

Would you able to give me some direction what need to be done in order to enable the support?
I am new to open source development and not too sure where to start.

[bharadwajy]

I'd suggest modeling support for raising aarch64 binaries based on the existing support for x64 (in top-level X86 directory) in a new top-level directory - say aarch64. You can start by putting together a source file (without library calls) with a simple add function and a main function that calls it - or some such - and work on raising its aarch64 executable. Then you can work on raising an aarch64 binary for one of the simpler test cases in the test/smoke_tests directory - say hello.c, with library calls.

For guidance, you can compile the same file targeting x64 and see how it is raised, via a combination of existing verbose output facility of the llvm-mctoll tool, adding more messages - if needed, and of course gdb.

Feel free to submit any bugs you might see when handling x64 binaries.

As you will very well know, there is a lot of great general guidance regarding working with OSS using GitHub on the web and GitHub help sections, in case you need it.