* Steven Rostedt (rostedt@xxxxxxxxxxx) wrote: > Hmm, I know paravirt-ops had an issue with mcount in the RT tree. I can't > remember the exact issues, but it did have something to do with the way > parameters were passed in. > > Chris, do you remember what the issues were? Yes, paravirt ops have a well-specified calling convention (register based). There was a cleanup that Andi did that caused the problem because it removed all the "fastcall" annotations since -mregparm=3 is now always on for i386. Since MCOUNT disables REGPARM the calling convention changes (caller pushes to stack, callee expects register) chaos ensues. I sent a patch to fix that quite some months back, but it went stale and I neglected to update it. Would you like me to dig it up refresh and resend? thanks, -chris _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
