Date: Thu, 2 Feb 1995 18:56:11 -0500
From: Dong Liu <dliu AT faraday-gw DOT njit DOT edu>
To: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: Re: Gdb  of djgpp.
References: <DLIU-23451254 DOT 95Feb2171054 AT rice DOT njit DOT edu>
Mailer: VM 5.32 (beta) for GNU Emacs 18.59.5

I said in a previous message:

Me> While working on the dpmi server of linux's dosemu, I have noticed a
Me> interesting thing about gdb, if I use "stepi" in gdb , it will generate
Me> two exception 0x01 at the same address, I have to block the second one
Me> in order for gdb to work. It is known or unknown to others? Please note
Me> that the TF bit in the eflags had already been cleared before calling
Me> the exception handler.

Sorry I made a mistake here, the exceptions did not occur at the same
address, the first exception is at the code begin debugged, that is
reasonable, but the second exception happens at address of the entry
point of go32's exception handler. Again, the TF bit has been cleared.

---
Dong Liu  <dliu AT ace DOT njit DOT edu>
Electrical and Computer Engineering Department
New Jersey Institute of Technology, Newark, NJ 07102