• Paul Mackerras's avatar
    [PATCH] ppc64: better stack traces · 14bc28ad
    Paul Mackerras authored
    This improves the stack traces we get on PPC64 by putting a marker in
    those stack frames that are created as a result of an interrupt or
    exception.  The marker is "regshere" (0x7265677368657265).
    
    With this, stack traces show where exceptions have occurred, which can
    be very useful.  This also improves the accuracy of the trace because
    the relevant return address can be in the link register at the time of
    the exception rather than on the stack.  We now print the PC and
    exception type for each exception frame, and then the link register if
    appropriate as the next item in the trace.
    14bc28ad
xmon.c 54.7 KB