Re: No step button using insight w/ remote target.

[Grant Edwards <grante@visi.com>]

On Mon, Nov 19, 2001 at 12:17:35PM -0800, Keith Seitz wrote:

> > (gdb) tk gdb_target_has_execution
> > 0
> 
> A ha! So this is the cause of your problems. gdb_target_has_execution does
> not think that the inferior is running...
> 
> static int
> gdb_target_has_execution_command (clientData, interp, objc, objv)
>      ClientData clientData;
>      Tcl_Interp *interp;
>      int objc;
>      Tcl_Obj *CONST objv[];
> {
>   int result = 0;
> 
>   if (target_has_execution && ! ptid_equal (inferior_ptid, null_ptid))
>     result = 1;
> 
>   Tcl_SetBooleanObj (result_ptr->obj_ptr, result);
>   return TCL_OK;
> }
> 
> So we've got: target_has_execution is 0 and/or inferior_ptid is null_ptid.

829       if (target_has_execution && ! ptid_equal (inferior_ptid, null_ptid))
Value returned is $3 = 1
(gdb) print inferior_ptid
$4 = {pid = 0, lwp = 0, tid = 0}
(gdb) print null_ptid
$5 = {pid = 0, lwp = 0, tid = 0}
(gdb) print target_has_execution
No symbol "target_has_execution" in current context.
(gdb) 

"target_has_execution" is presumably a macro?

Anyway, inferior_ptid _is_ null_ptid, so that's probably the
issue.  The "value returned" bit is from which I did a "finish"
to get back from ptid_equal(), IOW, ptid_equal() returned 1.

I have this nagging feeling that there might be something wrong
with my GDB stubs, so I traced the remote packets and here's
the trailing end of that (starting with the last few download
packets).  I can't really see anything wrong, and it seems to
work fine in non-window mode.  But, I'm not much of a remote
protocol guru...


Sending packet: $X2ad8d,73:\002¥0\000\000\020\000\000\002\204À\000\000\000\000\000\002\231ð\000\000\026Ì\000\000\026¸\000\000\000\000\000\000\020\000\000\002\205x\000\000\022h\000\002\230ì\000\000\000\000\000\002\005\214\000\000F´\000\000\200¼\000\002I\230\000\001î\004\000\000G\f\000\000jÜ\000\001ìì\000\000kÐ\000\000tø\000\000\\\024\000\000\200Ü\000\002I¸\000\001î}\004\000\000jü\000\001í\f#89...Ack
Packet received: OKLoading section .boot, size 0x4 lma 0x0

Sending packet: $X0,4:ê\000\000ß#eb...Ack
Packet received: OKStart address 0x384, load size 174787

Sending packet: $Pf=00000384#82...Ack
Packet received: OKTransfer rate: 2807 bits/sec, 306 bytes/write.

Sending packet: $Z0,99c,4#eb...Ack
Packet received: 
Packet Z0 (software-breakpoint) is NOT supported
Sending packet: $m99c,4#a2...Ack
Packet received: e59f00c8
Sending packet: $X99c,4:çÿÞþ#89...Ack
Packet received: OK
Sending packet: $Hc0#db...Ack
Packet received: OK
Sending packet: $c#63...Ack
Packet received: T05thread:00000000;0f:0000099c;0d:0002c15c;[New Thread 0]

Sending packet: $g#67...Ack
Packet received: 001af0bc00000001000000000000000100008000007d65180000000000000013007d6510fffffffd007d7ab00002c17c0002c1800002c15c0000531c0000099c00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000800000d3[Switching to Thread 0]

Sending packet: $m98c,4#a1...Ack
Packet received: e1a0c00d
Sending packet: $m990,4#6f...Ack
Packet received: e92dd800
Sending packet: $m994,4#73...Ack
Packet received: e24cb004
Sending packet: $m998,4#77...Ack
Packet received: e24dd014
Sending packet: $m99c,4#a2...Ack
Packet received: e7ffdefe
Sending packet: $m9a0,4#97...Ack
Packet received: eb001422
Sending packet: $m9a4,4#9b...Ack
Packet received: e59f00c4
Sending packet: $m9a8,4#9f...Ack
Packet received: eb0015e0
Sending packet: $m9ac,4#ca...Ack
Packet received: e3a03000
Sending packet: $m9b0,4#98...Ack
Packet received: e50b3010
Sending packet: $m9b4,4#9c...Ack
Packet received: e51b3010
Sending packet: $m9b8,4#a0...Ack
Packet received: e353000f
Sending packet: $m9bc,4#cb...Ack
Packet received: da000000
Sending packet: $X99c,4:å\237\000È#13...Ack
Packet received: OK
Breakpoint 1, cyg_user_start () at serecho.c:72
Current language:  auto; currently c



-- 
Grant Edwards
grante@visi.com