screws up too many targets.
* sparcl-stub.c: Add prototypes to many forward decls.
* Create private copies of strlen, strcpy, and memcpy to prevent
chaos when user steps into them.
* (trap_low handle_exception): Clean up DSU support code
(hardware breakpoints). Move lots of stuff from asm-land to
C-land (make it much easier to #ifdef if necessary). Also, use
trap 255 to get into break mode instead of doing a DSU register
write, which may trash the register.
* (putpacket): Don't check return value of putDebugChar. It
returns void...
fondling macros.
* (trap_low): Save and restore FP regs if necessary. Also, clean
up save and restore of debug unit regs.
* (hard_trap_info): Add more architecturally defined traps.
* (set_debug_traps): Only set FP disabled trap if FP is disabled.
* (get_in_break_mode): Clean up. Get rid of calls to
set_hw_breakpoint_trap(). Also, use write_asi macro
* (handle_exception): Clean up `g' and `G' commands. Add `P'
command.
* (hw_breakpoint): Why was this here!? It's gone now...
