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x/net/bpf: disassemble load extension to type LoadExtension #18469

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breml opened this issue Dec 29, 2016 · 2 comments
Closed

x/net/bpf: disassemble load extension to type LoadExtension #18469

breml opened this issue Dec 29, 2016 · 2 comments
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@breml
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breml commented Dec 29, 2016

Please answer these questions before submitting your issue. Thanks!

What version of Go are you using (go version)?

go version go1.7.4 linux/amd64

What operating system and processor architecture are you using (go env)?

linux, amd64

What did you do?

Disassemble bpf instructions including ld rand (load bpf extension rand).

What did you expect to see?

ld rand should be disassembled to bpf.LoadExtension{Num:56}.

What did you see instead?

ld rand was disassembled to bpf.LoadAbsolute{Off:0xfffff038, Size:4}.

CC: @danderson, @mikioh, @mdlayher
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CL https://golang.org/cl/34771 mentions this issue.

@breml breml mentioned this issue Dec 29, 2016
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@mdlayher
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Nice, thanks for the quick CL. Unfortunately, I'm not well-versed in the assembly and disassembly portions, so I'll leave this for @danderson and @mikioh.

@rsc rsc added this to the Unreleased milestone Jan 4, 2017
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