sflib ARM libraries missing?

[0x27]

Was test driving ragg2-cc, noticed it seemed to have an ARM output option. It seems the ARM headers/libraries are actually missing (current, as of this issue opening-time git version of r2) or not yet present? Was basically experimenting with the shellcode generation (which works amazingly for x86 so far! beautiful!)

$ ragg2-cc -c -a arm bind_syscallonly.c
cc1: fatal error: /usr/include/libr/sflib/linux-arm-64/sflib.h: No such file or directory
compilation terminated.
$ ragg2-cc -c -a arm -b 32 bind_syscallonly.c
cc1: fatal error: /usr/include/libr/sflib/linux-arm-32/sflib.h: No such file or directory
compilation terminated.
$

Not sure if PEBKAC or actual issue, but figured I'd flag it anyway :)

[radare]

Yeah, we should include and test more of those backends. We can take those from @whatsbcn 's shellforge project. https://github.com/whatsbcn/shellforge4 in which i based the implementation in r2.

Do you mind to send a pullreq?

[0x27]

Will fork and do some testing today and send a PR if I get it working in the next couple days. If I can get ARM to work, probably can get other architectures working too, but might not be able to effectively test those (maybe Qemu...) :)

[radare]

you’ll probably need to set CC environment pointing to your favourite arm C compiler when doing -a arm.

Would be cool to make ragg2-cc support most common toolchains like the android NDK or the one shipped by Apple (CC="xcrun —sdk iphoneos gcc -arch armv7")

this can be easily added. and i’m looking forward to support it

thanks!

On 06 May 2015, at 10:27, David Davidson notifications@github.com wrote:

Will fork and do some testing today and send a PR if I get it working in the next couple days. If I can get ARM to work, probably can get other architectures working too, but might not be able to effectively test those (maybe Qemu...) :)

—
Reply to this email directly or view it on GitHub #2500 (comment).

[0x27]

Hey,
Was preparing for a workshop last couple days, didn't get a chance to properly attempt this. Going to give it a try using the uclibc ARM GCC tonight and the sflib libraries now that have had time to look over how it works :)

[radare]

cool! let me know if you have any question or problem

On 18 May 2015, at 12:51, David Davidson notifications@github.com wrote:

Hey,
Was preparing for a workshop last couple days, didn't get a chance to properly attempt this. Going to give it a try using the uclibc ARM GCC tonight and the sflib libraries now that have had time to look over how it works :)

—
Reply to this email directly or view it on GitHub #2500 (comment).

[radare]

We are going to release next week, and i will find this feature really interesting to be ready, i can have a look at it too. But it will be great if you could check this out this weekend if you have some spare time for ti. thanks!

[radare]

ping?

[alvarofe]

I think this is more related with ragg2 than with arm

[radare]

I think we can close this. Sflib is just a collection of includes. It requires no libs at all. And its important to note that sflib supports arm and arm64 already