RE: [PATCH 1/4] perf tools: Add a test for decoding of new x86 instructions

[åæéå / HIRAMATUïMASAMI]

> From: Adrian Hunter [mailto:adrian.hunter@xxxxxxxxx]
> On 01/09/15 03:18, åæéå / HIRAMATUïMASAMI wrote:
> >> From: Adrian Hunter [mailto:adrian.hunter@xxxxxxxxx]
> >>
> >> Add a new test titled:
> >>
> >> 	Test x86 instruction decoder - new instructions
> >>
> >> The purpose of this test is to check the instruction decoder
> >> after new instructions have been added.  Initially, MPX
> >> instructions are tested which are already supported, but the
> >> definitions in x86-opcode-map.txt will be tweaked in a
> >> subsequent patch, after which this test can be run to verify
> >> those changes.
> >
> > Hmm, btw, why should this test in perf? It seems that we need
> > this test in kselftest or build-time selftest.
> > I prefer to put this in arch/x86/tools/ or lib/. What would you
> > think ?
> 
> There are 2 reasons perf tools needs a test:
> 	1. perf tools is source code independent from the kernel i.e. it has its
> own copy of the instruction decoder.
> 	2. perf tools test also tests the Intel PT decoder's categorization of
> instructions.

OK, then, can I port this insn tests into the kbuild? I'd like to use this,
but because of finding bugs in early stage, I think same test should be
done in the kernel build process (as a kbuild option).

Thank you,