Julian Elischer wrote: > On Thu, 30 May 2002, Jake Burkholder wrote: [..] > > It is much more difficult to ensure that all the register values > > end up the same on each return from the system call on sparc64, due > > to the way that register stack works. The current test program > > will not work at all, because setjmp, longjmp cannot be used to > > switch the stack in the same way. > > The library will not be using setjmp and longjmp in this way but > instead the setcontext() call that dan wrote for the current thread > library. If that works it should be enough. > (I'd like to investigate your comments though... can you explain > more about why it's a problem? It sure simplifies things on most > architectures I've done this on..
setjmp/longjmp cannot be used to switch stacks on ia64 either, for what it's worth. This is why libc_r is disabled for ia64 (and I presume sparc64). Cheers, -Peter -- Peter Wemm - [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED] "All of this is for nothing if we don't go to the stars" - JMS/B5 To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message