Is the Trex aarch64 compatible right now?

[Zhao, Bing]

Hi,
From the logs, "Update sljit to add aarch64 compat", it seems that the
trex could be run on the aarch64 platform. But when I try to build the
project, some error occurs. And the file "sljitNativeARM_64.c" is
missing. I check the github
https://github.com/cisco-system-traffic-generator/trex-core/tree/master/external_libs/bpf/bpfjit
and the folder is updated 8 months ago.
So do I miss something? I add a new item of "Issues" on the github. But
I couldn't access the google group. So I have to send the email here,
sorry to bother you.

Many thanks in advance.

BR. Bing

[Itay Marom]

Hi,

Currently BPF-JIT is only working for x86.

regular BPF will work for aarch.

you can simply remove the flag:

/* use BPFJIT */
#define TREX_USE_BPFJIT

https://github.com/cisco-system-traffic-generator/trex-core/blob/master/src/stx/common/trex_capture.h#L33

I'll add this flag to x86 flags and not to aarch in the next version.

Thanks,

Itay

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Itay Marom

[Itay Marom]

Hi,

I've committed a fix to allow Aarch64 to use software BPF for now.

In current state, you will be able to build Aarch64 target (not cross compile but native only) and connect from a x86 client.

The limitations currently are:

1.  no Aarch64 client

2.  no native based BPF (BPFJIT)

Both can be resolved but will require a bit more work.

See the attached diff.

Itay

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Itay Marom

[Bing]

Hi Itay,

Many thanks for your information. I worked at some other tasks last month and now back to check this. I will try the latest code. Last time I try to build this, I also found in the script, the source files need to be comments out.

 809 '''

 810 bpf = SrcGroups([

 811                 bpf_src,

 812                 bpfjit_src]);

 813 '''

 814 

 815 bpf = SrcGroups([

 816                 bpf_src

 817                 ]);

While with GCC6 and GCC7, some compiling warnings will be treated as errors on aarch64 platform. I will give some detailed information when available or try to fix it.

Thanks