Re: [RFA] Version 2 of patch to add 'maint profile-gdb' command

[Andrew Cagney <ac131313 at cygnus dot com>]

> 
> Emacs uses monstartup and manages to solve both of these problems.
> See the file src/emacs.c (search for "etext") for the details.

from emacs 20.7:

>   /* Gerd Moellmann <gerd@acm.org> says this makes profiling work on
>      FreeBSD.  It might work on some other systems too.
>      Give it a try and tell me if it works on your system.  */
> #ifdef __FreeBSD__
> #ifdef PROFILING
>   if (initialized)
>     {
>       extern void _mcleanup ();       
>       extern char etext;
>       extern Lisp_Object Fredraw_frame ();
>       atexit (_mcleanup);
>       /* This uses Fredraw_frame because that function
>          comes first in the Emacs executable.
>          It might be better to use something that gives
>          the start of the text segment, but start_of_text
>          is not defined on all systems now.  */
>       monstartup (Fredraw_frame, &etext);
>     }
>   else
>     moncontrol (0);
> #endif
> #endif

I get the feeling that this is work in progress.  I'd, for the moment, 
suggest using Jason's mechanism - it isn't perfect  but it works. 
Someone can later make it more fancy.

Andrew