On 2014-02-19 08:48, Sebastian Huber wrote:
Hello Joel,
since you don't provide much information (e.g. at least a stack trace would
have been helpful) I can only guess. You probably configured only one
GPTIMER instance in the simulators. Since the LEON processors lacks a
free-running CPU counter I had to use a second GPTIMER instance for this.
You should end up in _Internal_error_Occurred() with the_source ==
RTEMS_FATAL_SOURCE_BSP_SPECIFIC. Now you can look at the <bsp.h> of the
LEON3 BSP and find this:
typedef enum { LEON3_FATAL_CPU_COUNTER_INIT } leon3_fatal_code;
If you search for LEON3_FATAL_CPU_COUNTER_INIT you will find this:
adev = (void *) ambapp_for_each( &ambapp_plb, OPTIONS_ALL |
OPTIONS_APB_SLVS, VENDOR_GAISLER, GAISLER_GPTIMER, ambapp_find_by_idx, &idx
); if (adev == NULL) { rtems_fatal(RTEMS_FATAL_SOURCE_BSP_SPECIFIC,
LEON3_FATAL_CPU_COUNTER_INIT); }
With this change
http://git.rtems.org/rtems/commit/?id=33cb8bf64d7b7551ea3a2e7ced5d4b56cd32d6db
it is now easier to figure out what cased a BSP specific fatal error:
Breakpoint 2, _Internal_error_Occurred (the_source=RTEMS_FATAL_SOURCE_BSP,
is_internal=false, the_error=512) at
../../../../../../rtems/c/src/../../cpukit/score/src/interr.c:36
36 {
(gdb) where
#0 _Internal_error_Occurred (the_source=RTEMS_FATAL_SOURCE_BSP,
is_internal=false, the_error=512) at
../../../../../../rtems/c/src/../../cpukit/score/src/interr.c:36
#1 0x4000239c in leon3_cpu_counter_initialize () at
../../../../../.././leon3/lib/include/bsp/fatal.h:108
#2 0x40001c80 in bsp_start () at
../../../../../../../../rtems/c/src/lib/libbsp/sparc/leon3/startup/bspstart.c:72
#3 0x40001b34 in boot_card (cmdline=0x0) at
../../../../../../../../rtems/c/src/lib/libbsp/sparc/leon3/../../shared/bootcard.c:82
#4 0x400010c8 in zerobss () at
../../../../../../../../rtems/c/src/lib/libbsp/sparc/leon3/../../sparc/shared/start/start.S:362
#5 0x400010c8 in zerobss () at
../../../../../../../../rtems/c/src/lib/libbsp/sparc/leon3/../../sparc/shared/start/start.S:362
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb) p (bsp_fatal_code) the_error
$4 = LEON3_FATAL_CPU_COUNTER_INIT
(gdb)
--
Sebastian Huber, embedded brains GmbH
Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone : +49 89 189 47 41-16
Fax : +49 89 189 47 41-09
E-Mail : sebastian.hu...@embedded-brains.de
PGP : Public key available on request.
Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
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