Hi,
I’m writing my own debugger extension, I have a
question regarding using existing extension from my
own extension:
Is there a way to call an existing debugger
extension from my debugger extension code? (for
example - I want to call "!irp
Extensions are just DLLs, so LoadLibrary and GetProcAddress will work
fine. However, the recommended way of calling between extensions is to
use IDebugControl::GetExtensionFunction. That wraps the LoadLibrary and
GetProcAddress for you. Your callee extension defines EFN_whatever and
your caller extension uses GetExtensionFunction(0, “whatever”, &Func) to
get the function pointer (you can also look up your callee extension by
path to get a specific handle if you want to avoid walking the extension
chain).
If you just want to call a regular text-based extension in the extension
chain you can use IDebugControl::CallExtension.
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Alon
Sent: Tuesday, November 08, 2005 8:19 AM
To: Kernel Debugging Interest List
Subject: [windbg] Using exisiting deubgger extnesion from a new one
Hi,
I’m writing my own debugger extension, I have a question regarding using
existing extension from my own extension:
Is there a way to call an existing debugger extension from my debugger
extension code? (for example - I want to call "!irp
Hi ,
I use the
HRESULT
IDebugControl::Execute(
IN ULONG OutputControl,
IN PCSTR Command,
IN ULONG Flags
);
Methode to automate some things.
eg
Control->Execute(DEBUG_OUTCTL_ALL_CLIENTS |
DEBUG_OUTCTL_OVERRIDE_MASK |
DEBUG_OUTCTL_NOT_LOGGED,
“.frame”, // Command to be executed
DEBUG_EXECUTE_DEFAULT );
Regards,
Daniel
From: Alon
>Reply-To: “Kernel Debugging Interest List”
>To: “Kernel Debugging Interest List”
>Subject: [windbg] Using exisiting deubgger extnesion from a new one
>Date: Tue, 8 Nov 2005 08:18:41 -0800 (PST)
>
>Hi,
>
>I’m writing my own debugger extension, I have a
>question regarding using existing extension from my
>own extension:
>
>Is there a way to call an existing debugger
>extension from my debugger extension code? (for
>example - I want to call “!irp ” when
> is something I’ve found - any way to do so?
>I tried calling LoadLibrary and GetProcAddress but I
>didn’t success to make it work ;-(
>
>Thanks
>
>Alon
>
>
>
>
>
>Yahoo! Mail - PC Magazine Editors’ Choice 2005
>http://mail.yahoo.com
>
>
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Hi again,
Well, first I would like to say that I’m using the
“WdbgExts” interface which doesn’t work with
IDebugControl::…,
Other thing is that I want to understand how can I get
the output from these function, or that I just can
call them?
If it is possible to send here a sample code calling
external extension It will be very helpfull…What
regarding non-extension command (e.g.: dt
nt!_UNICODE_STRING
wdbgexts and dbgeng cooperate well, you can use IDebugControl::GetWindbgExtensionApis[32|64] to get the wdbgexts function pointer table, then use the wdbgexts macros as usual.
If you want to collect output the most flexible way would be to use IDebugClient::SetOutputCallbacks to install your own output callbacks. You’ll then get all output that your extension or command produces. You then restore the original callbacks when you’re done. The debugger samples have examples of implementing output callbacks.
If you don’t want to use callbacks you can open a log file and then close it to collect output during a particular period of time. To be cooperative you’d have to check for previous log settings and restore them after you’re done.
As other mail mentioned you can use IDebugControl::Execute to execute any arbitrary debugger command.
From: xxxxx@lists.osr.com on behalf of Alon
Sent: Wed 11/9/2005 12:03 AM
To: Kernel Debugging Interest List
Subject: RE:[windbg] Using exisiting deubgger extnesion from a new one
Hi again,
Well, first I would like to say that I’m using the
“WdbgExts” interface which doesn’t work with
IDebugControl::…,
Other thing is that I want to understand how can I get
the output from these function, or that I just can
call them?
If it is possible to send here a sample code calling
external extension It will be very helpfull…What
regarding non-extension command (e.g.: dt
nt!_UNICODE_STRING