Fixes in "new" mmap

* mem.c (sys_mmap): Ensure unsigned expansion of tcp->u_arg[5].
Add page shift of offset for I386.
Use tcp->ext_arg[5] as offset for X32.
(sys_old_mmap): [X32] Remove this function, X32 doesn't use is.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2 files changed