Hello, On 2011-12-17, Matthias Rampke <matth...@rampke.de> wrote: > > > On Friday, 16. December 2011 at 13:28, John Marino wrote: > >> >> FYI, Per bugs #2108, Alex created the getContext.S function a few months ago: >> http://leaf.dragonflybsd.org/~alexh/0001-getcontext-x86_64-implementation.patch >> > FWIW, here's my (failed) stab at taking Alex' getcontext.S and the old x86_64 > makecontext.c and signalcontext.c from before the removal: > > http://2p.grade.so/dfly/getmakesignalcontext.patch > > It does not compile, because there is no PIC_PROLOGUE and PIC_EPILOGUE for > x86_64 – I don't know why (not needed?) and my last and only steps with > assembler were a long long time ago and involved only a quarter of bits so I > really don't know where to go from that. But maybe the {make,signal}context > implementations are of any use? >
This code is wrong in numerous places (wrong registers used for parameter passing, wrong size of arguments etc). I posted a patch to the issue tracker but that seems to have problems too. I will try to fix those tomorrow and also provide setcontext and swapcontext. Cheers, Markus -- Markus Pfeiffer, University of St. Andrews email: markus.pfeif...@morphism.de | xmpp: markus.pfeif...@jabber.morphism.de
