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

[Shuai Wang <wangshuai901@gmail.com>]

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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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