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Re: [rfc] ``pc'' -> resume_addr?
Kevin Buettner wrote:
> On Apr 11, 6:16pm, Andrew Cagney wrote:
> > >> I think this name choice was unfortunate. It is too easy for a
> > >> developer to confuse ``pc'' with the hardware ``pc''.
> > >
> > > Could you please explain further why you think the name choice was
> > > unfortunate?
> > I think the name ``pc'' brings with it a certain amount of baggage.
> > When reading a piece of code, it isn't clear if the hardware ``pc''
> > (possibly needing adjustment) or the program's resume address is being used.
> Is there really that much confusion about this though? I think that
> the length of time during which this confusion exists is mercifully
> brief. AFAICT, gdb's notion of the pc is adjusted shortly after
> stopping via a call to bpstat_stop_status() and from then on, the pc
> value is simply the continuation (or resume) address. Even the "PC"
> value in the register cache has been adjusted to be the program's
> resume address at this point.
And since the register cache is write-thru, so has the child's PC