Hello world example not working on QEMU

[Joel Sherrill]

Turns out the grubmenu on the virtual floppy (e.g. pc_fda file) was
out of date also. So it failed for me until I changed it to this:

timeout=0
default=0
serial --unit=0 --speed=9600
terminal serial
title=  Automatically Run Test
kernel= (hd0,0)/test.exe --console=/dev/com1 --printk=/dev/com1

Then the examples-v2 hello_world_c worked perfectly.

--joel

On Mon, Aug 22, 2016 at 11:32 AM, Saeed Ehteshamifar <salpha.2004 at gmail.com>
wrote:

> QEMU doesn't show any error, just the blank screen, so I am not able to
>> figure out what,s wrong with my code,can somebody help?
>
> Nothing is wrong with your code. As Joel said, kernel arguments format
> changed. So I guess for your own version of hello (from examples-v2), if
> you invoke qemu with *-append "--console=com1" *rather than *-append
> "--console=/dev/com1"*, it would work.
> Have you configured RTEMS with USE_COM1_AS_CONSOLE=1 ?
>
> On Sun, Aug 21, 2016 at 8:31 AM, Sambeet Panigrahi <
> sambeet161616 at gmail.com> wrote:
>
>> Hi,
>> I followed the https://devel.rtems.org/wiki/Developer/Simulators/QEMU
>>  simulate RTEMS for i386. I used the hello world example from examples-v2
>> repository. The source code is directly taken from RTEMS C user guide.
>>
>> /*
>>  *  Classic API Hello World
>>  */
>>
>> #include <rtems.h> //Contains the RTEMS datatypes
>> #include <stdlib.h>//Standard C library
>> #include <stdio.h>//Standard C input ouput library
>>
>> rtems_task Init(
>>   rtems_task_argument ignored
>> )
>> {
>>   printf( "\n\n*** MODIFIED HELLO WORLD TEST ***\n" );
>>   printf( "Hello Sambeet!How are You?\n" );
>>   printf( "*** END OF MODIFIED HELLO WORLD TEST ***\n" );
>>   exit( 0 );
>> }
>>
>> /* configuration information */
>>
>> #include <bsp.h>
>>
>> /* NOTICE: the clock driver is explicitly disabled */
>> #define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
>> #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
>> #define CONFIGURE_USE_DEVFS_AS_BASE_FILESYSTEM
>>
>> #define CONFIGURE_RTEMS_INIT_TASKS_TABLE
>> #define CONFIGURE_MAXIMUM_TASKS 1
>>
>> #define CONFIGURE_INIT
>> #include <rtems/confdefs.h>
>> /* end of file */
>>
>> I compiled it using RTEMS GCC, the exact same commands as the makefile
>> i.e.
>>
>> /home/sambeet/NewRockPort/x86/Install/rtems/4.11.0-rc3/bin/i386-rtems4.11-gcc
>> --pipe -B/home/sambeet/NewRockPort/x86/Install/rtems/4.11.0-rc3/i386-rtems4.11/pc486/lib/
>> -specs bsp_specs -qrtems   -Wall  -O2 -g    -mtune=i486      -o
>> o-optimize/test.exe test.c
>>
>> that was because makefile was showing some errors
>>
>> sambeet at Holmes ~/Documents/GitRepos/examples/
>> examples-v2/hello/hello_world_c $ make
>> i386-rtems4.11-gcc --pipe -B/home/sambeet/NewRockPort/x8
>> 6/Install/rtems/4.11.0-rc3/i386-rtems4.11/pc486/lib/ -specs bsp_specs
>> -qrtems   -Wall  -O2 -g    -mtune=i486       -c   -o o-optimize/test.o
>> test.c
>> /bin/bash: i386-rtems4.11-gcc: command not found
>> make: *** [o-optimize/test.o] Error 127
>>
>> Now I generated the executable successfully but when I run it in QEMU.I
>> get a blank screen.However  when I try this which comes with i386
>> testsuites, I get the output
>>
>> /*
>>  *  COPYRIGHT (c) 1989-2012.
>>  *  On-Line Applications Research Corporation (OAR).
>>  *
>>  *  The license and distribution terms for this file may be
>>  *  found in the file LICENSE in this distribution or at
>>  *  http://www.rtems.org/license/LICENSE.
>>  */
>>
>> #ifdef HAVE_CONFIG_H
>> #include "config.h"
>> #endif
>>
>> #include <rtems/test.h>
>>
>> #include <bsp.h> /* for device driver prototypes */
>>
>> #include <stdio.h>
>> #include <stdlib.h>
>>
>> /* forward declarations to avoid warnings */
>> rtems_task Init(rtems_task_argument argument);
>>
>> const char rtems_test_name[] = "HELLO WORLD";
>>
>> rtems_task Init(
>>   rtems_task_argument ignored
>> )
>> {
>>   rtems_test_begin();
>>   printf( "Hello World\n" );
>>   rtems_test_end();
>>   exit( 0 );
>> }
>>
>>
>> /* NOTICE: the clock driver is explicitly disabled */
>> #define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
>> #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
>>
>> #define CONFIGURE_MAXIMUM_TASKS            1
>> #define CONFIGURE_USE_DEVFS_AS_BASE_FILESYSTEM
>>
>> #define CONFIGURE_RTEMS_INIT_TASKS_TABLE
>>
>> #define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
>>
>> #define CONFIGURE_INIT
>> #include <rtems/confdefs.h>
>>
>> QEMU doesn't show any error, just the blank screen, so I am not able to
>> figure out what,s wrong with my code,can somebody help?
>>
>> _______________________________________________
>> users mailing list
>> users at rtems.org
>> http://lists.rtems.org/mailman/listinfo/users
>>
>
>
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