CTRL-C in winedbg

Eric Pouech pouech-eric at wanadoo.fr
Sat May 24 04:48:41 CDT 2003

Gerhard W. Gruber wrote:
> I tried to set a breakpoint in agent when I investigated that crash. Since the
> address was not available at start I fired up Agent and then used <CTRL>-C in
> winedbg afterwards. The problem I had with this is, that this doesn't seem to
> be transparent to the application. Most of the time Agent crashed with
> unhandled exception when I continued. I thought that pressing CTRL-C shouldn't
> be noticable for the debugee. Of course there could be code that could make
> problems like timer or such, but I don't know if this is the case here. I
> tried this several times and only two times it worked as expected. All the
> other times Agent crashed.
does this help ?

Index: dlls/ntdll/signal_i386.c
RCS file: /home/cvs/cvsroot/wine/wine/dlls/ntdll/signal_i386.c,v
retrieving revision 1.61
diff -u -r1.61 signal_i386.c
--- dlls/ntdll/signal_i386.c    14 May 2003 19:41:17 -0000      1.61
+++ dlls/ntdll/signal_i386.c    24 May 2003 09:48:01 -0000
@@ -842,6 +842,8 @@
              context->ContextFlags = CONTEXT_DEBUG_REGISTERS;
              NtGetContextThread(GetCurrentThread(), context);
+            if (!(context->Dr6 & 0xf))
+                rec.ExceptionCode = EXCEPTION_BREAKPOINT;
      case T_BPTFLT:   /* Breakpoint exception */

Eric Pouech

More information about the wine-devel mailing list