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Re: Need help with GDB commands
- To: Harald Fernengel <harald at trolltech dot com>
- Subject: Re: Need help with GDB commands
- From: Eli Zaretskii <eliz at is dot elta dot co dot il>
- Date: Wed, 4 Jul 2001 09:52:39 +0300 (IDT)
- cc: gdb at sources dot redhat dot com
On Tue, 3 Jul 2001, Harald Fernengel wrote:
> I need to create a user-defined command that reads some memory and then
> passes it a formatting program. I am assuming the formatting program would
> be run via the 'shell' command'. Is there any way to do this?
>
> Below is a list of the things that I have thought of. None of them seem to
> be possible:
>
> * Writing the command output to a file (this is my preferred approach)
> * Passing output as stdin to a child process
> * Setting an environment variable which contains the output
> * Passing output as command line parameters to a child process
I'd suggest
* add a special function to the debuggee which will accept the
command line for the formatting program, and then run that
program. Then use the GDB `call' command to invoke that function
from GDB.
> Another possible solution would be to call C runtime I/O functions as part
> an expression in a 'set' command. However, these functions would be
> running on the target, not the gdb host machine right?
Ah, you are debugging a remote target? Than my suggestion won't work
for you.
Sounds like a good reason for extending `shell', or maybe for a new
command.