code.
(__xstat_conv): Use memset to clear padding arrays. Check for
overflow.
(__xstat64_conv): Use memset to clear padding arrays.
(__xstat32_conv): New function.
* sysdeps/unix/sysv/linux/mips/mips32/fxstatat.c: New file.
* sysdeps/unix/sysv/linux/mips/mips64/fxstatat64.c: Likewise.