Re: Debug of Test 15 (cgf input needed)

[Enoch Wu <ewu at eskimo dot com>]

Hi,


On Sat, Apr 07, 2001 at 10:36:59PM -0400, Pierre A. Humblet wrote:
> Chris, what you write makes perfect sense and I had tried it.
> Here are more details.
> I can see there are two threads, but bt and where tell me
> "Cannot access memory at address 0x7cee8008" for both threads.
> The only thing I can deduce by looking at the pc and the dll's
> is that the program is in kernel32.
> 
> I also wrote a very simple program and repeated the procedure.
> There attach doesn't hang, but I have the same memory
> access problem. At any rate I don't have an unstripped version
> of the cygwin dll to debug cygwin. 


>                               I was simply hoping to confirm
> that the program is in select.

You do need to get the sources and compile them with -g and with optimizer -O
turned off. Edit the makefile to disable all strip commands. Then you can locate
the select() function in gdb. 

Sometimes sources are not easy to get. Chris, is there a turf issue?

EW
> 
> Pierre
> >If you are debugging cygwin, you'll need to have an unstripped version
> >of the DLL built with gcc -g.
> >
> >Hopefully this makes some sense.  I don't think I want to give a course
> >in basic debugging.  If this doesn't make sense then I assume that there
> >must be some information on the web somewhere on how to use gdb in
> >addition to the gdb info files.
> >
> >cgf
> >
>