Noob Hello World sparc/leon2 console not working

[Jiri Gaisler]

The stack command sets/shows the initial value of the stack pointer
when the application is started. The current stack pointer is seen
in the %sp register (%i6/%o6).

Jiri.

Ralph Preston wrote:
> Hello,
> 
> The board has 512Kbytes RAM.  The MCFG2 register has the setting 0x00000c6e
> and the stack pointer is set to 0x4007fff0.
> 
> As I run the program the stack pointer doesn't change.  I've stepped through
> a number of "save" instructions similar to: "save %sp, -112, %sp".  The
> value from the grmon command "stack" should change here, shouldn't it?
> 
> If I try to manually change the value of the stack pointer to 0x4007ffe0,
> when I check the value it shows 0x4007ff00.
> 
> Any thoughts what's going on?
> 
> Jiri Gaisler -
> 
>>Check the amount of memory you have on the board, and the
>>stack pointer as set by grmon. You need around 200 Kbyte
>>to run hello.exe.
>>
>>Jiri.
>>
>>Ralph Preston wrote:
>>
>>>Hello,
>>>
>>>I just installed RTEMS 4.6.5 and am trying to run the example Hello
>>>World on a Sparc/Leon2 board.  The problem is there is no console
>>>output, the program hangs.  Is there a compile option/define/or anything
>>>I need to set in order to get console output?  The makefile includes
>>>"Managers=io".
>>>
>>>Following is the output from the compile and gdb.
>>>
>>>% make
>>>test -d o-optimize || mkdir o-optimize
>>>sparc-rtems-gcc --pipe -B/opt/rtems/sparc-rtems/leon2/lib/ -specs
>>>bsp_specs -qrtems   -g -Wall  -O2 -g     -mcpu=cypress -msoft-float
>>>-c   -o o-optimize/test.o test.c
>>>sparc-rtems-gcc --pipe -B/opt/rtems/sparc-rtems/leon2/lib/ -specs
>>>bsp_specs -qrtems   -g -Wall  -O2 -g     -mcpu=cypress -msoft-float
>>>-o o-optimize/hello.exe
>>>o-optimize/test.o   /opt/rtems/sparc-rtems/leon2/lib/no-dpmem.rel
>>>/opt/rtems/sparc-rtems/leon2/lib/no-event.rel /opt/rtems/sparc-rt
>>>ems/leon2/lib/no-msg.rel /opt/rtems/sparc-rtems/leon2/lib/no-mp.r
>>>el /opt/rtems/sparc-rtems/leon2/lib/no-part.rel /opt/rtems/sparc-
>>>rtems/leon2/lib/no-signal.rel /opt/rtems/sparc-rtems/leon2/lib/no-
>>>timer.rel /opt/rtems/sparc-rtems/leon2/lib/no-rtmon.rel
>>>sparc-rtems-nm -g -n o-optimize/hello.exe > o-optimize/hello.num
>>>sparc-rtems-size o-optimize/hello.exe
>>>   text    data     bss     dec     hex filename
>>>  92368    2868    4956  100192   18760 o-optimize/hello.exe
>>>
>>>% sparc-rtems-objcopy -O srec o-optimize/hello.exe o-optimize/hello.srec
>>>
>>>I then run GRMON, target it with gdb and load the srec.  The program
>>>hangs, so I kill it and produce this output:
>>>
>>>Program received signal SIGINT, Interrupt.
>>>0x40002cdc in _Internal_error_Occurred (the_source=4210657,
>>>is_internal=0,
>>>    the_error=5)
>>>at ../../../../../../rtems-4.6.5/cpukit/score/src/interr.c:57
>>>57        _CPU_Fatal_halt( the_error );
>>>(gdb) bt
>>>#0  0x40002cdc in _Internal_error_Occurred (the_source=4210657,
>>>is_internal=0,
>>>    the_error=5)
>>>at ../../../../../../rtems-4.6.5/cpukit/score/src/interr.c:57
>>>#1  0x40001cac in console_initialize (major=0, minor=0, arg=0x0)
>>>
>>>at 
>>>../../../../../../../../../rtems-4.6.5/c/src/lib/libbsp/sparc/leon2/console/c
>>>onsole.c:328
>>>#2  0x400031c4 in rtems_io_initialize (major=0, minor=0, argument=0x0)
>>>    at ../../../../../../rtems-4.6.5/cpukit/sapi/src/io.c:268
>>>#3  0x40002fb4 in _IO_Initialize_all_drivers ()
>>>    at ../../../../../../rtems-4.6.5/cpukit/sapi/src/io.c:97
>>>#4  0x40002ae4 in rtems_initialize_executive_early (
>>>    configuration_table=0x400174ac, cpu_table=0x40017484)
>>>    at ../../../../../../rtems-4.6.5/cpukit/sapi/src/exinit.c:263
>>>#5  0x40001ac0 in boot_card (argc=0, argv=0x0, envp=0x0)
>>>
>>>at 
>>>../../../../../../../../../rtems-4.6.5/c/src/lib/libbsp/shared/bootcard.c:115
>>>#6  0x400010dc in zerobss ()
>>>
>>>I've also used GRMON to step through the assembly and it looks like the
>>>offending function is rtems_io_register_name() -> mknod(), but that's as
>>>far as I've gotten, and I figured there must be something simple I'm
>>>missing.  Any assistance would be greatly appreciated.
> 
>  
> 
> Ralph A. Preston
> The MITRE Corporation
> 202 Burlington Road MS E095
> Bedford, MA 01730
> Phone: 781-271-7914   Fax: 781-271-8915   Cell: 617-335-2226
> http://www.mitre.org
> 
> .
>