using libc in a C++ program

[begin.mi...@gmail.com]

Hello,
I am working with an application that is mainly written in C++
(thunderbird to be specific). Anyway, I added a couple of functions,
written in C, and having a few libc calls (malloc, sprintf etc). The
problem I am having is that the first time those libc functions are
invoked, loading(or executing?) them is taking very long. (running it
under GDB and stepping through the code, on the libc function calls it
takes about 5-10 minutes to return on a dual core machine). However,
once a libc function is invoked and returned, it returns fast as
expected in subsquent invocations.

I tried to statically link libc, but still have same issues. Have any
ideas?
Thanks a lot
--
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[Jack Klein]

On Fri, 4 Jul 2008 01:46:59 -0500 (CDT), begin.mi...@gmail.com
wrote in comp.lang.c.moderated:

> Hello,
> I am working with an application that is mainly written in C++
> (thunderbird to be specific). Anyway, I added a couple of functions,
> written in C, and having a few libc calls (malloc, sprintf etc). The
> problem I am having is that the first time those libc functions are
> invoked, loading(or executing?) them is taking very long. (running it
> under GDB and stepping through the code, on the libc function calls it
> takes about 5-10 minutes to return on a dual core machine). However,
> once a libc function is invoked and returned, it returns fast as
> expected in subsquent invocations.
>
> I tried to statically link libc, but still have same issues. Have any
> ideas?
> Thanks a lot

Here's my idea.

Ask in a gcc support group, or mailing list. There is nothing in the
C language that specifies the workings of GDB, or for that matter
about using C code in C++ programs.

--
Jack Klein
Home: http://JK-Technology.Com
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