gem5.bare-metal for armv8

Question

gem5.bare-metal for armv8

Opened this issue 8 years ago · 9 comments

Excuse me. I want to run a binary compiled with armv8 compiler in gem5 with fs bare-metal model. I find your project and want to modified for my purpose. I want to know I should change the compiler arm-none-eabi to what? And I should modified what else ? Hope your advises, thx.

Answer 1 · 2017-02-21T12:44:31.000Z

Actually I don't get your question yet, can you please elaborate more in detail?

Answer 2 · 2017-02-21T13:20:45.000Z

Sorry for not describing my questions clearly. I want to run an armv8 version application in gem5 bare metal mode. would you please tell the modifications I have to make on current project to implement it? which compiler do I have to use and what are the flags? Should I modify the boot.S and other files?

Answer 3 · 2017-02-21T19:56:23.000Z

I think the important thing is that you run gem5 with this option:

--machine-type=VExpress_EMM64

in order to get the v8 architecture.

For sure, some other changes are necessary, maybe have look here:

https://github.com/freedomtan/aarch64-bare-metal-qemu

If you have a final solution, please share it with a pull request!

Answer 4 · 2017-02-22T08:55:44.000Z

Thanks very much. I have make some modifying based your repositories. But having mistakes also. I have described in my repository README.md. Please have a look, I don't understand the compile options. Thx!

https://github.com/kjnprince/gem5.bare-metal-armv8/blob/master/README.md

Answer 5 · 2018-08-24T01:09:06.000Z

I wanted to check if anyone got this work. Thanks

Answer 6 · 2018-08-26T12:48:06.000Z

I had no time to do this so far :(

Answer 7 · 2018-09-25T09:00:38.000Z

@myzinsky @kjnprince hi, I've described a detailed setup that works on aarch64 at: https://stackoverflow.com/questions/43682311/uart-communication-in-gem5-with-arm-bare-metal/50983650#50983650

It is recommended that you use VExpress_GEM5_V1 going forward. It handles both arm and aarch64.

Answer 8 · 2018-11-09T20:40:32.000Z

@************2 could you create a proper example and open a pull request? I would highly appreciate!

Answer 9 · 2018-11-10T04:43:56.000Z

@myzinsky as mentioned on the Stack Overflow answer, there is a working setup on this repo You can extract it from there with --dry-run if you are interested in the Bash commands used. It is not easy to make a simple pull request that just works here as the harder part is perhaps compiling GCC from source for Newlib in aarch64.