Re: [Caml-list] Cannot execute "main" function

[Kenneth Adam Miller <kennethadammiller@gmail.com>]

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Nah, it's no problem at all. :)

On Fri, Jul 17, 2015 at 3:35 PM, Shuai Wang <wangshuai901@gmail.com> wrote:

> OK, my bad. I figured out the problem due to my carelessness...
> really sorry for troubling you guys. I hope I didn't waste too much of
> your time = (
>
> On Fri, Jul 17, 2015 at 3:16 PM, Kenneth Adam Miller <
> kennethadammiller@gmail.com> wrote:
>
>> If you are certain that you can do a make clean, git checkout of the
>> previous revision to where this wasn't occurring, rebuild and confirm that
>> this still happens, then it certainly seems like this is a environment
>> issue.
>>
>> On Fri, Jul 17, 2015 at 3:13 PM, Shuai Wang <wangshuai901@gmail.com>
>> wrote:
>>
>>> ☁  src [master] ⚡ ldd init.native
>>> linux-vdso.so.1 =>  (0x00007fff55dfe000)
>>> libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
>>> (0x00007fa4fc9c0000)
>>> libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fa4fc6c4000)
>>> libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fa4fc4bf000)
>>> libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fa4fc101000)
>>> /lib64/ld-linux-x86-64.so.2 (0x00007fa4fcbfe000)
>>>
>>> On Fri, Jul 17, 2015 at 3:11 PM, Ivan Gotovchits <ivg@ieee.org> wrote:
>>>
>>>> Can you show the output of `ldd` on your main executable, e.g.,  `ldd
>>>> init.native`?
>>>>
>>>> On Fri, Jul 17, 2015 at 3:07 PM, Shuai Wang <wangshuai901@gmail.com>
>>>> wrote:
>>>>
>>>>> Hello Ivan,
>>>>>
>>>>> Thank you for your reply! aha, it is not related to BAP ;)
>>>>>
>>>>> I didn't touch the code in init.ml for a long time, and I have tried
>>>>> to roll back
>>>>> to previous version which works fine. But it is still trapped in this
>>>>> way..
>>>>>
>>>>> By looking at the ltrace output, IMHO, is there any chance that some
>>>>> setting up code of runtime system does not work well? I am probably
>>>>> wrong.
>>>>>
>>>>> Sincerely,
>>>>> Shuai
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Fri, Jul 17, 2015 at 2:51 PM, Ivan Gotovchits <ivg@ieee.org> wrote:
>>>>>
>>>>>> In OCaml all module level expressions are evaluated in order of their
>>>>>> appearance. If you have some function
>>>>>> that you designate as a "main" function*, then before this function
>>>>>> is entered all modules on which module,
>>>>>> containing "main" function, depends. So you need to find, whether you
>>>>>> added some code, that evaluates before
>>>>>> your main.
>>>>>>
>>>>>> * there is no such function as main function in OCaml. All modules
>>>>>> are evaluated in the order of their occurrence
>>>>>> on the compilation string. Usually, the order is defined by a build
>>>>>> tool, like `ocamlbuild`, that will put the entry module
>>>>>> in the last place, and topologically sort the preceding modules.
>>>>>>
>>>>>> P.S. I hope that this is not related to BAP? ;)
>>>>>>
>>>>>> On Fri, Jul 17, 2015 at 2:35 PM, Shuai Wang <wangshuai901@gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> Dear list,
>>>>>>>
>>>>>>>
>>>>>>> I am working on some tools written in OCaml (compiled by OCaml
>>>>>>> version 4.01.0).
>>>>>>>
>>>>>>> This morning I changed some code, compiled it and let it processing
>>>>>>> some large data (~ 4G), it never stops after over 2 hours.
>>>>>>>
>>>>>>> I feed the tool with a tiny input which took less than 1 second to
>>>>>>> process before, and  I figured out that now it takes around 2.5 minutes
>>>>>>> before entering into "main" function!
>>>>>>>
>>>>>>> I tried to clean the whole codebase, and recompile it ( I use
>>>>>>> ocamlbuild 4.01.0), but the same wired situation still happens..
>>>>>>>
>>>>>>> I did this:
>>>>>>>
>>>>>>>     ltrace ./init.native input
>>>>>>>
>>>>>>> and I got this output flushing out for a very long time (sorry mail
>>>>>>> list blocks my large image.. ):
>>>>>>>
>>>>>>> http://i.stack.imgur.com/sEkKk.png
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Is anyone aware this kind of issue before..? Am I messed up
>>>>>>> something..?
>>>>>>> I have been working on OCaml for a relatively long time and I didn't
>>>>>>> encounter this kind of stuff before...
>>>>>>>
>>>>>>>
>>>>>>> Sincerely,
>>>>>>> Shuai
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>

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