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    SubjectRe: Coccinelle: badzero.cocci failure
    Hi Julia,


    2017-11-15 15:22 GMT+09:00 Julia Lawall <julia.lawall@lip6.fr>:
    >
    >
    > On Tue, 14 Nov 2017, Masahiro Yamada wrote:
    >
    >> Hi Julia,
    >>
    >>
    >> 2017-11-14 18:07 GMT+09:00 Julia Lawall <julia.lawall@lip6.fr>:
    >> >> coccicheck failed
    >> >> $ cat cocci-debug.txt
    >> >> /home/masahiro/bin/spatch -D report --no-show-diff --very-quiet
    >> >> --cocci-file scripts/coccinelle/null/badzero.cocci --dir . -I
    >> >> ./arch/x86/include -I ./arch/x86/include/generated -I ./include -I
    >> >> ./arch/x86/include/uapi -I ./arch/x86/include/generated/uapi -I
    >> >> ./include/uapi -I ./include/generated/uapi --include
    >> >> ./include/linux/kconfig.h --jobs 8 --chunksize 1
    >> >> Fatal error: exception
    >> >> Yes_prepare_ocamlcocci.LinkFailure("/tmp/ocaml_cocci_18c9f9.cmxs")
    >> >
    >> > Does your Coccinelle support OCaml? I'm not sure what is the proper way to
    >> > check for this, but in my coccinelle/config.log file I have
    >> >
    >> > FEATURE_OCAML='1'
    >>
    >>
    >> Yes. I also see this line in my config.log
    >>
    >>
    >> > spatch --version gives:
    >> >
    >> > spatch version 1.0.6-00147-g19f9421 compiled with OCaml version 4.02.3
    >> > Flags passed to the configure script: [none]
    >> > Python scripting support: yes
    >> > Syntax of regular expresssions: Str
    >>
    >> My version output looks like follows:
    >>
    >> $ spatch --version
    >> spatch version 1.0.6-00345-g2ca0bef compiled with OCaml version 4.02.3
    >> Flags passed to the configure script: --prefix=/home/masahiro
    >> Python scripting support: yes
    >> Syntax of regular expresssions: PCRE
    >>
    >>
    >> > I'm not sure why it doesn't give feedback on whether OCaml scripting is
    >> > supported. I will check on this.
    >
    > Can you try the following semantic patch (called eg nothing.cocci):
    >
    > @script:ocaml@
    > @@
    >
    > ()
    >
    > on any .c file, ie
    >
    > spatch --sp-file nothing.cocci test.c
    >


    Thanks for the simple test semantic patch!



    I noticed 1.0.4 is OK,
    but 1.0.5 is NG

    I guess this is a problem on Coccinelle side.


    I git-bisect:ed and the first bad commit bad was:


    commit cd539cd12ad0674d5a8f4c33f6c21ae00aec8e57
    Author: Sébastien Hinderer <Sebastien.Hinderer@inria.fr>
    Date: Tue Mar 15 12:06:00 2016 +0100

    Get rid of the --enable-release configure option.




    $ spatch --version
    spatch byte-code version 1.0.4-00212-g8238ba5 compiled with OCaml version 4.02.3
    Flags passed to the configure script: --prefix=/home/masahiro
    Python scripting support: yes
    Syntax of regular expresssions: PCRE
    $ spatch --sp-file nothing.cocci kernel/kmod.c
    init_defs_builtins: /home/masahiro/lib/coccinelle/standard.h
    Using native version of ocamlc/ocamlopt/ocamldep
    ocamlc.opt -c /tmp/ocaml_cocci_23600a.cmo -g -I /usr/lib/ocaml -I
    /home/masahiro/lib/coccinelle/ocaml /tmp/ocaml_cocci_23600a.ml
    Compilation OK!
    Loading ML code of the SP...
    HANDLING: kernel/kmod.c
    $ spatch --version
    spatch native version 1.0.4-00213-gcd539cd compiled with OCaml version 4.02.3
    Flags passed to the configure script: --prefix=/home/masahiro
    Python scripting support: yes
    Syntax of regular expresssions: PCRE
    $ spatch --sp-file nothing.cocci kernel/kmod.c
    init_defs_builtins: /home/masahiro/lib/coccinelle/standard.h
    Using native version of ocamlc/ocamlopt/ocamldep
    ocamlopt.opt -shared -o /tmp/ocaml_cocci_fdd282.cmxs -g -I
    /usr/lib/ocaml -I /home/masahiro/lib/coccinelle/ocaml
    /tmp/ocaml_cocci_fdd282.ml
    Compilation OK!
    Loading ML code of the SP...
    implementation mismatch on Iteration
    Fatal error: exception
    Yes_prepare_ocamlcocci.LinkFailure("/tmp/ocaml_cocci_fdd282.cmxs")


    --
    Best Regards
    Masahiro Yamada

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