Jumptables: How painful to hack?

Ian Lance Taylor ian@zembu.com
Wed Mar 31 07:57:00 GMT 1999

   Date: Tue, 30 Mar 1999 21:09:18 -0800
   From: Jason Merrill <jason@cygnus.com>

   A question for folks who have worked on BFD for a while: How horrible are
   jumptables to deal with?  I'm looking at parameterizing the g++ ABI, and am
   strongly considering that as an implementation strategy.

I started to reply, but then I realized that it depends upon what you
mean by the g++ ABI.  Do you mean the code that g++ generates, or do
you mean the files in gcc/cp?  The former already uses jumptables, of
course, since that's what virtual functions are, and I'm not sure in
what sense the latter has an ABI.


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