On Sun, Mar 27, 2011 at 05:13:31AM +0000, Chen Jie wrote: > Hi Aurelien, > > Got it, thanks for the explanation. > > Just curious, does the same problem exist on X86-64(64bit kernel + 32 bit > userland)? If yes, should the caller of syscall() need to split each 64bit > argument into two 32bit arguments? >
It is not something which depends on the running kernel, but the problem doesn't exists on x86 given the ABI doesn't requires 64-bit arguments to be aligned. I have been able to reproduce the problem on powerpc and arm though (they both require 64-bit values to be aligned). In any case on 32-bit machines, splitting 64-bit arguments into two 32-bit arguments should always work, provided that the endianness is correctly taken into account. -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurel...@aurel32.net http://www.aurel32.net -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
