[Cbe-oss-dev] How is a debugger supposed to find the SPU's PC value in a CBE core file?

[John DelSignore]

Hi,

When I look at the notes in a CBE core file, the npc file seems to be missing. For example:

alg:/nfs/algae/u0/home/jdelsign/tvbld/linux-power/algae/totalview/debugger/src/tests/cli/core_test/ppu-gcc_4.1.1_32>readelf -n core.27295 

Notes at offset 0x00000454 with length 0x00082398:
  Owner         Data size       Description
  CORE          0x0000010c      NT_PRSTATUS (prstatus structure)
  CORE          0x00000080      NT_PRPSINFO (prpsinfo structure)
  CORE          0x000000b0      NT_AUXV (auxiliary vector)
  CORE          0x00000108      NT_FPREGSET (floating point registers)
  SPU/21/regs           0x00000800      NT_PRSTATUS (prstatus structure)
  SPU/21/fpcr           0x00000010      NT_PRSTATUS (prstatus structure)
  SPU/21/lslr           0x0000000b      NT_PRSTATUS (prstatus structure)
  SPU/21/decr           0x0000000b      NT_PRSTATUS (prstatus structure)
  SPU/21/decr_status            0x0000000b      NT_PRSTATUS (prstatus structure)
  SPU/21/mem            0x00040000      NT_PRSTATUS (prstatus structure)
  SPU/21/signal1                0x00000004      NT_PRSTATUS (prstatus structure)
  SPU/21/signal1_type           0x00000002      NT_PRSTATUS (prstatus structure)
  SPU/21/signal2                0x00000004      NT_PRSTATUS (prstatus structure)
  SPU/21/signal2_type           0x00000002      NT_PRSTATUS (prstatus structure)
  SPU/21/event_mask             0x00000008      NT_PRSTATUS (prstatus structure)
  SPU/21/event_status           0x00000008      NT_PRSTATUS (prstatus structure)
  SPU/21/mbox_info              0x00000004      NT_PRSTATUS (prstatus structure)
  SPU/21/ibox_info              0x00000004      NT_PRSTATUS (prstatus structure)
  SPU/21/wbox_info              0x00000010      NT_PRSTATUS (prstatus structure)
  SPU/21/dma_info               0x00000228      NT_PRSTATUS (prstatus structure)
  SPU/21/proxydma_info          0x00000118      NT_PRSTATUS (prstatus structure)
  SPU/21/object-id              0x00000013      NT_PRSTATUS (prstatus structure)
  SPU/4/regs            0x00000800      NT_PRSTATUS (prstatus structure)
  SPU/4/fpcr            0x00000010      NT_PRSTATUS (prstatus structure)
  SPU/4/lslr            0x0000000b      NT_PRSTATUS (prstatus structure)
  SPU/4/decr            0x0000000b      NT_PRSTATUS (prstatus structure)
  SPU/4/decr_status             0x0000000b      NT_PRSTATUS (prstatus structure)
  SPU/4/mem             0x00040000      NT_PRSTATUS (prstatus structure)
  SPU/4/signal1         0x00000004      NT_PRSTATUS (prstatus structure)
  SPU/4/signal1_type            0x00000002      NT_PRSTATUS (prstatus structure)
  SPU/4/signal2         0x00000004      NT_PRSTATUS (prstatus structure)
  SPU/4/signal2_type            0x00000002      NT_PRSTATUS (prstatus structure)
  SPU/4/event_mask              0x00000008      NT_PRSTATUS (prstatus structure)
  SPU/4/event_status            0x00000008      NT_PRSTATUS (prstatus structure)
  SPU/4/mbox_info               0x00000004      NT_PRSTATUS (prstatus structure)
  SPU/4/ibox_info               0x00000004      NT_PRSTATUS (prstatus structure)
  SPU/4/wbox_info               0x00000010      NT_PRSTATUS (prstatus structure)
  SPU/4/dma_info                0x00000228      NT_PRSTATUS (prstatus structure)
  SPU/4/proxydma_info           0x00000118      NT_PRSTATUS (prstatus structure)
  SPU/4/object-id               0x00000013      NT_PRSTATUS (prstatus structure)
  CORE          0x0000010c      NT_PRSTATUS (prstatus structure)
  CORE          0x00000108      NT_FPREGSET (floating point registers)
  CORE          0x0000010c      NT_PRSTATUS (prstatus structure)
  CORE          0x00000108      NT_FPREGSET (floating point registers)
alg:/nfs/algae/u0/home/jdelsign/tvbld/linux-power/algae/totalview/debugger/src/tests/cli/core_test/ppu-gcc_4.1.1_32>

I would have expected an SPU/<id>/npc note to be present.

So, where does one find the value of an SPU's PC at the time of the core dump?

Thanks much, John D.