[LLVMdev] Extracting an AST to Graphviz using Clang

Sat Jun 9 15:09:54 PDT 2012

Hi Joey,

Still the same message.

I am running it from llvm-2.9/Debug/bin/clang -cc1 -ast-view ~/smd.c

Is this where you were referring to?

Best,

Carlos Andrade
http://carlosandrade.co

2012/6/9 Joey Gouly <joel.gouly at gmail.com>

> You need to run the clang from the build directory. Something like
> ./Debug+Asserts/bin/clang
>
> Joey
>
>
> On 9 June 2012 22:52, Carlos Andrade <carlosviansi at gmail.com> wrote:
>
>> Just in case another person comes to get stuck on this on Mac OS:
>>
>> http://web.mit.edu/mfloyd/www/computing/mac/gv/
>>
>> This link explains the process on getting gv installed since Xaw3d
>> dependency even has a 'error' (actually missing few parameters) on a line
>> that prevents code compilation that needs to be fixed before configuring
>> and make it works.
>>
>> -- I have gv installed now and my bash console can recognize the 'gv' and
>> 'dot' as specified on llvm manual, from my previous email I believe I
>> compiled on debug mode and my bash does recognize 'clang' bash now but
>> still I get:
>>
>> clang -cc1 -ast-view smd.c
>>
>> *Stmt::viewAST is only available in debug builds on systems with
>> Graphviz or gv!*
>>
>> What am I missing? :(
>>
>> Thanks,
>>
>> Carlos Andrade
>> http://carlosandrade.co
>>
>>
>>
>> 2012/6/9 Carlos Andrade <carlosviansi at gmail.com>
>>
>>> Just to add one more thing. I have been trying to install the gv on my
>>> mac os but I have not been successful either. The gv build requires xaw3d (
>>> http://directory.fsf.org/wiki/Xaw3d ) which apparently has not been
>>> updated for quite few years and the download is not even available anymore.
>>>
>>> Carlos Andrade
>>> http://carlosandrade.co
>>>
>>>
>>>
>>> 2012/6/9 Carlos Andrade <carlosviansi at gmail.com>
>>>
>>>> Hi Joey,
>>>>
>>>> I think there is still something missing.
>>>>
>>>> I ignored the -j as you mentioned and saw on the documentation that to
>>>> compile on debug mode I could do so using:
>>>>
>>>> $./configure --disable-optimized
>>>>
>>>> As a result by the end I compiled llvm2.9 I got:
>>>>
>>>> llvm[0]: ***** Completed Debug Build
>>>> llvm[0]: ***** Note: Debug build can be 10 times slower than an
>>>> llvm[0]: ***** optimized build. Use make ENABLE_OPTIMIZED=1 to
>>>> llvm[0]: ***** make an optimized build. Alternatively you can
>>>> llvm[0]: ***** configure with --enable-optimized.
>>>>
>>>>
>>>> Which lead me to believe I end up getting what you suggested on debug
>>>> mode. I also put clang 2.9 inside /tools/clang (renamed the clang-2-9) so
>>>> that the configure could notice it and ran $make test inside the clang
>>>> folder after it.
>>>>
>>>> Still I executed $ ./clang -cc1 -ast-view smd.c only to get
>>>>
>>>> Stmt::viewAST is only available in debug builds on systems with
>>>> Graphviz or gv!
>>>>
>>>> Mixed up with the output and nothing being show on graphviz. What am I
>>>> missing? Again, I have graphviz but I don't think I have gv and I am
>>>> running an OS X Lion 10.7.4 (latest version).
>>>>
>>>> Thanks,
>>>>
>>>> Carlos Andrade
>>>> http://carlosandrade.co
>>>>
>>>>
>>>>
>>>> 2012/6/9 Joey Gouly <joel.gouly at gmail.com>
>>>>
>>>>> Hi,
>>>>>
>>>>> The -j option just says how many processes are started to parallelise
>>>>> the build.
>>>>>
>>>>> The default option is to build Debug+Asserts, so unless you add any
>>>>> extra arguments when you run './configure', you should be fine!
>>>>>
>>>>> Joey
>>>>>
>>>>>
>>>>> On 9 June 2012 21:29, Carlos Andrade <carlosviansi at gmail.com> wrote:
>>>>>
>>>>>> Hi Joey!
>>>>>>
>>>>>> Thanks I just replied your message on stack and I was actually
>>>>>> looking into this right now. Is this the option? I just wanted to confirm:
>>>>>>
>>>>>>
>>>>>>    - make [-j] - The -j specifies the number of jobs (commands) to
>>>>>>    run simultaneously. This builds both LLVM and Clang for Debug+Asserts mode.
>>>>>>    The --enabled-optimized configure option is used to specify a Release build.
>>>>>>
>>>>>>
>>>>>> The -j parameter is the right one?
>>>>>>
>>>>>> Thank you,
>>>>>>
>>>>>> Carlos Andrade
>>>>>> http://carlosandrade.co
>>>>>>
>>>>>>
>>>>>>
>>>>>> 2012/6/9 Joey Gouly <joel.gouly at gmail.com>
>>>>>>
>>>>>>> Hi Carlos,
>>>>>>>
>>>>>>> You can just download the source code from
>>>>>>> http://llvm.org/releases/download.html#2.9 and then read
>>>>>>> http://llvm.org/docs/GettingStarted.html which should tell you how
>>>>>>> to compile it.
>>>>>>>
>>>>>>> Joey
>>>>>>>
>>>>>>> On 9 June 2012 21:10, Carlos Andrade <carlosviansi at gmail.com> wrote:
>>>>>>>
>>>>>>>> Hi Alex,
>>>>>>>>
>>>>>>>> Would you recommend any specific link in respect on how to compile
>>>>>>>> in debug mode? I downloaded the Mac OS version on the website so I did not
>>>>>>>> compile anything. I am sort of a rookie on bash but I should be able to
>>>>>>>> figure my way around this.
>>>>>>>>
>>>>>>>> Also, is there any particular reason why this functionality is only
>>>>>>>> available on debug mode?
>>>>>>>>
>>>>>>>> Thank you so much for the fast reply, was driving me nuts!
>>>>>>>>
>>>>>>>> Best,
>>>>>>>>
>>>>>>>> Carlos Andrade
>>>>>>>> http://carlosandrade.co
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> 2012/6/9 Alex Rønne Petersen <xtzgzorex at gmail.com>
>>>>>>>>
>>>>>>>>> Hi Carlos,
>>>>>>>>>
>>>>>>>>> > I am new to this list, and hope this question is pertinent to
>>>>>>>>> this mailing
>>>>>>>>> > list.
>>>>>>>>>
>>>>>>>>> Welcome!
>>>>>>>>>
>>>>>>>>> > Stmt::viewAST is only available in debug builds on systems with
>>>>>>>>> Graphviz or
>>>>>>>>> > gv!
>>>>>>>>>
>>>>>>>>> You need to actually build Clang in debug mode for this particular
>>>>>>>>> method to be available, which is very likely why you're seeing this
>>>>>>>>> error. I don't think that Clang builds shipped with Xcode (for
>>>>>>>>> example) are built in debug mode.
>>>>>>>>>
>>>>>>>>> Regards,
>>>>>>>>> Alex
>>>>>>>>>
>>>>>>>>> On Sat, Jun 9, 2012 at 8:54 PM, Carlos Andrade <
>>>>>>>>> carlosviansi at gmail.com> wrote:
>>>>>>>>> > Dears,
>>>>>>>>> >
>>>>>>>>> > I am new to this list, and hope this question is pertinent to
>>>>>>>>> this mailing
>>>>>>>>> > list.
>>>>>>>>> >
>>>>>>>>> > I have been trying to use Clang to extract an AST from my source
>>>>>>>>> code, but
>>>>>>>>> > without success when attempting to do so with Graphviz.
>>>>>>>>> >
>>>>>>>>> > I created a thread on Stackoverflow recently in hope any could
>>>>>>>>> help me [1],
>>>>>>>>> > but the question is actually pretty simple. I keep getting
>>>>>>>>> >
>>>>>>>>> >
>>>>>>>>> > Stmt::viewAST is only available in debug builds on systems with
>>>>>>>>> Graphviz or
>>>>>>>>> > gv!
>>>>>>>>> >
>>>>>>>>> > alongside the code that is output despite having graphviz added
>>>>>>>>> to the path
>>>>>>>>> > and having it installed on my machine. dot works fine from my
>>>>>>>>> console, but I
>>>>>>>>> > have no 'gv' like it is suggested on the documentation (you can
>>>>>>>>> find how I
>>>>>>>>> > attempted that and the versions on the stack link better
>>>>>>>>> formatted than on
>>>>>>>>> > this email).
>>>>>>>>> >
>>>>>>>>> > The command I am running on my console is:
>>>>>>>>> >
>>>>>>>>> > ./clang -cc1 -ast-view smd.c
>>>>>>>>> >
>>>>>>>>> > My graphviz version is 2.28 and my clang version is 2.9 (for a
>>>>>>>>> couple of
>>>>>>>>> > reasons I need to make it work for this version).
>>>>>>>>> >
>>>>>>>>> >
>>>>>>>>> http://stackoverflow.com/questions/10962845/stmtviewast-is-only-available-in-debug-builds-on-systems-with-graphviz-or-gv
>>>>>>>>> >
>>>>>>>>> > I also heard xml output was discontinued, but I still see the
>>>>>>>>> option from
>>>>>>>>> > cc1 to output in such format without any warning message on 2.9
>>>>>>>>> (although no
>>>>>>>>> > apparent output is given in that case), why is that?
>>>>>>>>> >
>>>>>>>>> > Thank you,
>>>>>>>>> >
>>>>>>>>> > Carlos Andrade
>>>>>>>>> > http://carlosandrade.co
>>>>>>>>> >
>>>>>>>>> >
>>>>>>>>> > _______________________________________________
>>>>>>>>> > LLVM Developers mailing list
>>>>>>>>> > LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>>>>>>>>> > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>>>>>>>>> >
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> LLVM Developers mailing list
>>>>>>>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>>>>>>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
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