Messages in this thread | | | From | 平松雅巳 / HIRAMATU,MASAMI <> | Subject | RE: [PATCH 1/4] perf tools: Add a test for decoding of new x86 instructions | Date | Tue, 1 Sep 2015 11:03:58 +0000 |
| |
> From: Adrian Hunter [mailto:adrian.hunter@intel.com] > On 01/09/15 03:18, 平松雅巳 / HIRAMATU,MASAMI wrote: > >> From: Adrian Hunter [mailto:adrian.hunter@intel.com] > >> > >> 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,
| |