[Bug 1001673] New: extra information for exception dump

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           Summary: extra information for exception dump
           Product: eCos
           Version: 3.0
          Platform: All
        OS/Version: ARM
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: low
         Component: HAL
        AssignedTo: unassigned@bugs.ecos.sourceware.org
        ReportedBy: jo.lin@sunplusmedia.com
                CC: ecos-bugs@ecos.sourceware.org
             Class: Advice Request


Created an attachment (id=1938)
 --> (http://bugs.ecos.sourceware.org/attachment.cgi?id=1938)
solution for extra information

Overview: More detailed exception information.

   1.
   Some series of ARM supports FSR (Fault Status Register) and FAR (Fault
Address Register) that give us a precise cause for 2 specify exception
(prefetch abort and data abort).

   We have a proposal to dump that kind information when
CYGHWR_HAL_ARM_DUMP_EXCEPTIONS enable.

   2.
   We were under obligation to provide the spsr information also in case we
cannot guarantee one situation that an unpredicted exception raises during
exception handling.

   3.
   Our development group team has a tool for investigation all the data in
stack, the amount of data to determines the reliability of the results, we are
suggest to provide a flexible buffer size.

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