Please help with GDB/PSIM and Redhat Linux

[Hoang Ngo]

-----Original Message-----
From: Joel Sherrill [mailto:joel.sherrill at OARcorp.com]
Sent: Tuesday, August 01, 2000 1:36 PM
To: Hoang Ngo
Cc: hoanghngo at home.com; rtems-users at OARcorp.com
Subject: Re: Please help with GDB/PSIM and Redhat Linux


Hoang Ngo wrote:
> 
> Yes, i recompiled and re-installed the two packages
> rtems-4.5.0-beta3a and rtems-packages-19991215.
> 
> But i will remove all the packages and start afresh again.

I don't think that is necessary.  I just wanted to know that
your change to dummy.c is really installed.  The 2nd part
is critical... set a break at setenv/getenv and run the
application.  I think you will find it is dereferencing NULL.

Can you expand on the statement above some more? How do i make sure
that dummy.c is really installed? I found psim/lib/dymmy.rel and
dummy_g.rel with today date. About the break point at setenv/getenv,
i changed the makefile to link the tests with debug ncurses libraries
(libxxx_g) but got an error message "curses: Can't open 'trace' file: : Not
supported".
Is there something that i am missing?

Hoang






> Hoang
> 
> -----Original Message-----
> From: Joel Sherrill [mailto:joel.sherrill at OARcorp.com]
> Sent: Tuesday, August 01, 2000 1:12 PM
> To: Hoang Ngo
> Cc: hoanghngo at home.com; rtems-users at OARcorp.com
> Subject: Re: Please help with GDB/PSIM and Redhat Linux
> 
> Hoang Ngo wrote:
> >
> > I made the modification in dummy.c. Recompiled rtems-4.5.0-beta3a
> > and rtems-packages-19991215. I still got the same error message.
> >
> > I am somewhat confused on what we are trying to achieve here, so i
> > will re-iterate my problems here:
> >
> > 1. The ncurses examples works fine for GDB/PSIM under Slackware
> >    but not on Redhat-6.2
> > 2. The examples that run under Slackware doesn't display the
> >    correct result.
> >
> > Here is the content of dummy.c after i modified it:
> >
> > #define CONFIGURE_RTEMS_INIT_TASKS_TABLE
> > #define CONFIGURE_MAXIMUM_TASKS 10
> > #define CONFIGURE_USE_IMFS_AS_BASE_FILESYSTEM
> > #define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 20
> > #define CONFIGURE_INIT
> 
> Did you recompile and reinstall after makign the above change?
> 
> The above is only 1/2 the problem.  Eric Norum and I believe
> that TERM has to be set properly in the environment for the
> ncurses tests to work.  psim's startup code does not do that.
> 
> My suspicion is that you are seeing different manifestations
> of the same failure.  Let's backup and see what the code
> is doing when it fails hard on RedHat.  Once that is fixed,
> we can address the Slackware garbled output.
> 
> --joel

-- 
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joel at OARcorp.com                 On-Line Applications Research
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