FW: The question about the relation between gdb and the programme debugged

Lawrence Lee (Shanghai) LawrenceLee@viatech.com.cn
Mon Jun 10 18:30:00 GMT 2002



-----Original Message-----
From: Lawrence Lee (Shanghai) 
Sent: Tuesday, June 11, 2002 9:31 AM
To: 'Kevin Buettner'
Cc: gdb
Subject: RE: The question about the relation between gdb and the
programme debugged


Thanks!
But how does the gdb process access the memory spaces in the program being
debugged?
If the object program uses ioperm and iopl to get the permission to
read(write) IO port, can the gdb access the IO port also?

Thanks.

-----Original Message-----
From: Kevin Buettner [mailto:kevinb@redhat.com]
Sent: Tuesday, June 11, 2002 5:50 AM
To: Lawrence Lee (Shanghai); 'gdb@sources.redhat.com'
Subject: Re: The question about the relation between gdb and the
programme deb ugged


On Jun 10, 10:11am, Lawrence Lee (Shanghai) wrote:

> I want to know the relation between the gdb and the object programme being
> debugged. Does the gdb load the object programme into  gdb's memory spaces
> so that gdb can access the varible of the programme? Or the gdb and the
> object programme are different processes which have different memory
> spaces?

The latter; gdb and the program being debugged are separate processes.

Kevin



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