linux-kernel - Re: [Cocci] Coccinelle: badzero.cocci failure

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Date:   Thu, 16 Nov 2017 11:19:20 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Thierry Martinez <thierry.martinez@...ia.fr>
Cc:     Julia Lawall <julia.lawall@...6.fr>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Nicolas Palix <nicolas.palix@...g.fr>, cocci@...teme.lip6.fr
Subject: Re: [Cocci] Coccinelle: badzero.cocci failure

Hi Thierry,

2017-11-16 0:49 GMT+09:00 Masahiro Yamada <yamada.masahiro@...ionext.com>:
> Hi Thierry,
>
> 2017-11-15 23:56 GMT+09:00 Thierry Martinez <thierry.martinez@...ia.fr>:
>> Hi, Masahiro.
>>
>> Masahiro:
>>> Fatal error: exception
>>> Yes_prepare_ocamlcocci.LinkFailure("/tmp/ocaml_cocci_fdd282.cmxs")
>>
>> If you can rerun your test with coccinelle GitHub master, the
>> LinkFailure exception will now be more verbose, in order to understand
>> the problem.
>>
>> I suspect a mismatch between the version of OCaml you use to compile
>> coccinelle, and the version of OCaml that coccinelle uses to compile
>> OCaml scripts in rules.
>>
>
> Now I am out of the office
> and working from home.
> badzero.cocci works fine on my PC at home.
>
> I suspect the difference of installed packages.
>
>
> I will try the latest commit in the GitHub
> tomorrow at the office.
>
>

I tested the latest coccinelle
on my PC at office.

The result is as follows:

$ spatch --version
spatch version 1.0.6-00359-g1a8f958 compiled with OCaml version 4.02.3
Flags passed to the configure script: --prefix=/home/masahiro
OCaml scripting support: yes
Python scripting support: yes
Syntax of regular expresssions: PCRE
$ spatch --sp-file nothing.cocci kernel/kmod.c
init_defs_builtins: /home/masahiro/bin/../lib/coccinelle/standard.h
Using native version of ocamlc/ocamlopt/ocamldep
ocamlopt.opt -shared -o /tmp/ocaml_cocci_d59676.cmxs -g -I
/usr/lib/ocaml  -I /home/masahiro/bin/../lib/coccinelle/ocaml
/tmp/ocaml_cocci_d59676.ml
Compilation OK!
Loading ML code of the SP...
implementation mismatch on Coccilib
Fatal error: exception
Yes_prepare_ocamlcocci.LinkFailure("/tmp/ocaml_cocci_d59676.cmxs",
"implementation mismatch on Coccilib")

I use Ubuntu 16.04 LTS

$ cat  /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.2 LTS"

I checked install.txt
and I confirmed all of the following packages are installed on my PC.

On Debian/Ubuntu, install the following packages
 - pkg-config (optional, but strongly recommended)
 - ocaml-native-compilers (or alternatively ocaml)
 - ocaml-findlib
 - menhir and libmenhir-ocaml-dev (optional, bundled)
 - libpcre-ocaml-dev (optional, bundled)
 - texlive-fonts-extra (for the documentation)

-- 
Best Regards
Masahiro Yamada