[RFA] gdb-comm.exp: set breakpoints after load

[Jie Zhang]

gdb-comm.exp sets breakpoints on exit and abort before load. The problem 
is that GDB tries to skip prologue according to what it reads from 
memory, which might contain random data since the executable has not 
been loaded into memory. In my case, sometimes skip_prologue might skip 
one or two more instructions, which happens to be an exception 
instruction and will trap the processor into an exception event loop 
after running the executable before hit the breakpoints. The attached 
patch changes gdb-comm.exp to set breakpoints after load.

Thanks,
Jie

dejagnu-gdb-comm-break-after-load.diff
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