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  • Paul Mundt's avatar
    sh: dwarf unwinder depends on SHcompact. · da47f4a3
    Paul Mundt authored
    
    
    Presently there's no SHmedia support plugged in for the dwarf unwinder.
    While it's trivial to provide an SHmedia version of dwarf_read_arch_reg(),
    the general sh64 case is more complicated in that the TLB miss handler
    uses a locked down set of registers for optimization (including the frame
    pointer) which we need for the unwind table generation.
    
    While freeing up the frame pointer for use in the TLB miss handler is
    reasonably straightforward, it's still more trouble than it's worth, so
    we simply restrict the unwinder to 32-bit for now.
    
    Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
    da47f4a3