On Mon, 28 Apr 2008, Jeff Dike wrote: > On Sat, Apr 26, 2008 at 06:01:12PM +0800, WANG Cong wrote: >> > + /* >> > + * When the stub stops, we find the following values on the >> > + * beginning of the stack: >> > + * (long) return_value >> > + * (long) offset to failed sycall data (0 if no error) >> > + */ >> > + ret = *((unsigned long *) stack); >> >> >> I am afraid the value will be truncated on 64bit machine, since >> 'ret' is 'int' while 'stack' points to an 'unsigned long'. >> >> Is this expected? > > That's dubious, but I don't think it breaks anything. On LE, *(int *) > and *(long *) will give you the same answer, and the value here is an > error code, which fits into 32 bits.
So it's safe here. OK. Thanks! -- Hi, I'm a .signature virus, please copy/paste me to help me spread all over the world. ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
