linux-kernel - Re: [PATCH 0/4] objtool,perf: Use shared x86 insn decoder

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Message-Id: <20190831002004.d570fcb7b611860e025dbdb2@kernel.org>
Date:   Sat, 31 Aug 2019 00:20:04 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...hat.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>
Subject: Re: [PATCH 0/4] objtool,perf: Use shared x86 insn decoder

On Thu, 29 Aug 2019 17:41:17 -0500
Josh Poimboeuf <jpoimboe@...hat.com> wrote:

> It's kind of silly that we have *three* identical copies of the x86 insn
> decoder in the kernel tree.  Make it approximately 50% less silly by
> reducing that number to two.
> 

Sounds good to me ;)

Reviewed-by: Masami Hiramatsu <mhiramat@...nel.org>

Thanks,

> Josh Poimboeuf (4):
>   objtool: Move x86 insn decoder to a common location
>   perf: Update .gitignore file
>   perf intel-pt: Remove inat.c from build dependency list
>   perf intel-pt: Use shared x86 insn decoder
> 
>  .../{objtool => }/arch/x86/include/asm/inat.h |    0
>  .../arch/x86/include/asm/inat_types.h         |    0
>  .../{objtool => }/arch/x86/include/asm/insn.h |    0
>  .../arch/x86/include/asm/orc_types.h          |    0
>  tools/{objtool => }/arch/x86/lib/inat.c       |    0
>  tools/{objtool => }/arch/x86/lib/insn.c       |    0
>  .../arch/x86/lib/x86-opcode-map.txt           |    0
>  .../arch/x86/tools/gen-insn-attr-x86.awk      |    0
>  tools/objtool/Makefile                        |    4 +-
>  tools/objtool/arch/x86/Build                  |    4 +-
>  tools/objtool/arch/x86/decode.c               |    4 +-
>  tools/objtool/sync-check.sh                   |   12 +-
>  tools/perf/.gitignore                         |    3 +
>  tools/perf/arch/x86/tests/insn-x86.c          |    2 +-
>  tools/perf/arch/x86/util/archinsn.c           |    2 +-
>  tools/perf/check-headers.sh                   |   11 +-
>  tools/perf/util/intel-pt-decoder/Build        |   22 +-
>  .../intel-pt-decoder/gen-insn-attr-x86.awk    |  392 ------
>  tools/perf/util/intel-pt-decoder/inat.c       |   82 --
>  tools/perf/util/intel-pt-decoder/inat.h       |  230 ----
>  tools/perf/util/intel-pt-decoder/inat_types.h |   15 -
>  tools/perf/util/intel-pt-decoder/insn.c       |  593 ---------
>  tools/perf/util/intel-pt-decoder/insn.h       |  216 ----
>  .../intel-pt-decoder/intel-pt-insn-decoder.c  |   10 +-
>  .../util/intel-pt-decoder/x86-opcode-map.txt  | 1072 -----------------
>  25 files changed, 34 insertions(+), 2640 deletions(-)
>  rename tools/{objtool => }/arch/x86/include/asm/inat.h (100%)
>  rename tools/{objtool => }/arch/x86/include/asm/inat_types.h (100%)
>  rename tools/{objtool => }/arch/x86/include/asm/insn.h (100%)
>  rename tools/{objtool => }/arch/x86/include/asm/orc_types.h (100%)
>  rename tools/{objtool => }/arch/x86/lib/inat.c (100%)
>  rename tools/{objtool => }/arch/x86/lib/insn.c (100%)
>  rename tools/{objtool => }/arch/x86/lib/x86-opcode-map.txt (100%)
>  rename tools/{objtool => }/arch/x86/tools/gen-insn-attr-x86.awk (100%)
>  delete mode 100644 tools/perf/util/intel-pt-decoder/gen-insn-attr-x86.awk
>  delete mode 100644 tools/perf/util/intel-pt-decoder/inat.c
>  delete mode 100644 tools/perf/util/intel-pt-decoder/inat.h
>  delete mode 100644 tools/perf/util/intel-pt-decoder/inat_types.h
>  delete mode 100644 tools/perf/util/intel-pt-decoder/insn.c
>  delete mode 100644 tools/perf/util/intel-pt-decoder/insn.h
>  delete mode 100644 tools/perf/util/intel-pt-decoder/x86-opcode-map.txt
> 
> -- 
> 2.20.1
> 


-- 
Masami Hiramatsu <mhiramat@...nel.org>