linux-kernel - Re: [PATCH v3] kbuild: Add support to generate LLVM bitcode files

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Message-ID: <CAK7LNAQas1xvs6KzAjaBBu+0iYzj_ZjhQOTAQB-1ciC0m1242Q@mail.gmail.com>
Date:   Mon, 24 Apr 2017 11:21:48 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Matthias Kaehlcke <mka@...omium.org>
Cc:     Michal Marek <mmarek@...e.com>, Emese Revfy <re.emese@...il.com>,
        Kees Cook <keescook@...omium.org>,
        Behan Webster <behanw@...verseincode.com>,
        "Luis R . Rodriguez" <mcgrof@...nel.org>,
        Vinícius Tinti <viniciustinti@...il.com>,
        Kyeongmin Cho <korea.drzix@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Grant Grundler <grundler@...omium.org>,
        Michael Davidson <md@...gle.com>,
        Greg Hackmann <ghackmann@...gle.com>,
        Peter Foley <pefoley2@...oley.com>
Subject: Re: [PATCH v3] kbuild: Add support to generate LLVM bitcode files

Hi Matthias,



2017-04-22 4:55 GMT+09:00 Matthias Kaehlcke <mka@...omium.org>:
> Hi Masahiro,
>
> El Fri, Apr 21, 2017 at 02:02:46PM +0900 Masahiro Yamada ha dit:
>
>> 2017-04-05 2:27 GMT+09:00 Matthias Kaehlcke <mka@...omium.org>:
>> > From: Vinícius Tinti <viniciustinti@...il.com>
>> >
>> > Add rules to kbuild in order to generate LLVM bitcode files with the .ll
>> > extension when using clang.
>>
>>
>> First, I'd like to be sure about the terminology "LLVM bitcode"
>> because "bitcode" sounds like human-unreadable binary.
>>
>>
>> For example, 'man llvm-as' says:
>>     llvm-as  is  the  LLVM  assembler.  It reads a file containing
>>     human-readable LLVM assembly language, translates it to LLVM
>>     bitcode, and writes the result into a file or to standard output.
>>


One more thing:

Please add '*.ll' pattern to the following clean target.


clean: $(clean-dirs)
        $(call cmd,rmdirs)
        $(call cmd,rmfiles)
        @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
                \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
                -o -name '*.ko.*' \
                -o -name '*.dwo'  \
                -o -name '*.su'  \
                -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
                -o -name '*.symtypes' -o -name 'modules.order' \
                -o -name modules.builtin -o -name '.tmp_*.o.*' \
                -o -name '*.c.[012]*.*' \
                -o -name '*.gcno' \) -type f -print | xargs rm -f





-- 
Best Regards
Masahiro Yamada