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Re: console Vs GUI gdb on i386 target


Pete Barrie wrote:
> 
> Running PC-host, Win2000, Cygwin and i386-elf-gdb
> to PC target.
> 
> I've spent some time with docs and site search but I'm
> not clear about the following:
> 
> Q1. On gdb console version standard output from tutorial programs
> hello.c , twothreads.c, etc comes back to the gdb console. Good.
> But...if I'm running Insight GUI where can I see the
> output?  I've checked manuals but I'm not
> clear on this.

View->Console

> Q2. Can I redirect output to other display's on host or PC video?
> 
> CYGSEM_HAL_I386_PC_DIAG_SCREEN (Output to PC screen) _is_ enabled
> within the i386 PC Target configuration in the 1.3.net configuration tool but
> this does not seem to make any difference. Should output be going to
> another device
> (config tool help says that PC screen is a third virtual serial device.
> What is this device
> name ?)

There should be _something_ on the attached screen, or at least, the
RedBoot stuff.

I think the issue is that RedBoot selects the default console once it has
got input from it, so if you connect over serial, all console I/O goes to
serial.

You could change this in your application by disabling
CYGSEM_HAL_VIRTUAL_VECTOR_INHERIT_CONSOLE in the Common HAL options, and
setting the default console channel to that of the screen. Do that with
CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL in the PC HAL config.
 
> 3. Can I use the PC keyboard for standard input?

Yes, that goes hand in hand with using the screen.

Jifl
-- 
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