Changeset 8f582bc in rtems for cpukit/score

2011-10-07 Daniel Hellstrom <daniel@…>

PR 1932/cpukit

• cpu_asm.S: At some point the interrupt trap handler causes a window-overflow and the window overflow trap handler crashes when writing to 0. I found that this is because the WIM was bad, to the window overflow handler uses a uninitialized stack pointer in a window never used.
  • g3=CWP, not WIM
  • CWP is incremented by done_flushing no need doing that here also
  • I see no reason to create an additional stack frame (save)
  • Must turn off traps when updating WIM (maybe already done by caller?)