17 lines
810 B
Text
17 lines
810 B
Text
$Header$
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The machine-dependant part of the ACK debugger support requires three
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routines:
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___Get_PC takes a frame pointer (local base) argument and returns the
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return address from this frame.
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___Set_PC takes a frame pointer (local base) argument plus a return
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address and sets the return address of this frame to the
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return address supplied.
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??? a third routine which is called at every line (see for
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instance mach/m68020/ncg/mach.c for an example of how to
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do this). This routine must save the scratch registers
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and then call (or jump to) ___uX_LiB. If this is a call,
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___Get_PC and ___Set_PC are complicated by the existance
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of a procedure frame that we do not want the "grind" user
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to know about. See for instance the mach/m68020/libdb version
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for how to solve this problem.
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