Brandon S Allbery KF8NH writes: > On Wed, 2002-04-24 at 10:41, Andrew Gallatin wrote: > > Maybe the argument isn't where you expect it to be, but is there. > > Can you make a test program which calls mmap2 with its 6th arg as > > something unique like 0xdeadbeef? Then print out (in hex :) the trapframe > > from the linux prepsyscall routine & see if you can find the deadbeef. > > My recollection is that beyond 5 arguments, a pointer to the remaining > ones is passed. (But my recollection may be wrong and I don't wish to > subject myself to the source cesspool at the moment....) >
I think that's how it used to work. Apparently, they've changed it recently and they now pass 6 args in registers. Eg, in the linux kernel sources, old_mmap() fetches its args via copy_from_user(), whereas the newer sys_mmap2() doesn't. Drew To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
