On 2014-04-17 01:20, Joel Sherrill wrote:
Hi
The jmr3904 simulator faults before the exception is generated.
RTEMS can't catch the exception and generate a fatal error.
Any thoughts?
*** BEGIN OF TEST SPFATAL 26 ***
Breakpoint 4, Init (arg=<optimized out>)
at
../../../../../../../rtems/c/src/../../testsuites/sptests/spfatal26/init.c:56
56 provoke_aligment_or_data_access_exception();
(gdb) s
provoke_aligment_or_data_access_exception ()
at
../../../../../../../rtems/c/src/../../testsuites/sptests/spfatal26/init.c:35
35 *(volatile uint64_t *) base;
(gdb) si
mips-core: 4 byte read to unmapped address 0x4 at 0x880002e8
Program received signal SIGBUS, Bus error.
provoke_aligment_or_data_access_exception ()
at
../../../../../../../rtems/c/src/../../testsuites/sptests/spfatal26/init.c:35
35 *(volatile uint64_t *) base;
The simulator lacks support for this exception. On SIS you get for example:
*** BEGIN OF TEST SPFATAL 26 ***
Memory exception at 80000000 (illegal address)
Breakpoint 2, _Terminate (the_source=RTEMS_FATAL_SOURCE_EXCEPTION,
is_internal=false, the_error=33773240) at
/home/sh/rtems-4.11/c/src/../../cpukit/score/src/interr.c:39
39 _ISR_Disable_without_giant( level );
(gdb) where
#0 _Terminate (the_source=RTEMS_FATAL_SOURCE_EXCEPTION, is_internal=false,
the_error=33773240) at /home/sh/rtems-4.11/c/src/../../cpukit/score/src/interr.c:39
#1 0x020051c0 in rtems_fatal (source=RTEMS_FATAL_SOURCE_EXCEPTION,
error=33773240) at /home/sh/rtems-4.11/c/src/../../cpukit/sapi/src/fatal2.c:34
#2 0x02002064 in bsp_spurious_handler (trap=265, isf=0x203a6a8) at
/home/sh/rtems-4.11/c/src/lib/libbsp/sparc/erc32/startup/spurious.c:131
#3 0x02028370 in dont_fix_pil2 () at
/home/sh/rtems-4.11/c/src/lib/libbsp/sparc/erc32/../../sparc/shared/irq_asm.S:464
#4 0x02028370 in dont_fix_pil2 () at
/home/sh/rtems-4.11/c/src/lib/libbsp/sparc/erc32/../../sparc/shared/irq_asm.S:464
--
Sebastian Huber, embedded brains GmbH
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