In addition, move the syscalls to the mips module file because they are
all identical in mips32 and mips64.

As a result of this commit, glob64_t will be added to mips64.

Make changes to reflect this

vfork, wait4, getresuid, getresgid, personality, vhangup,
swapon, swapoff, getdomainname, setdomainname, iopl, ioperm

Fixed the issues that prevented the libc_tests that are generated from passing. Also, fixed struct names and types to be representative of the linux source files.

overflow lines caused style build failure

somehow i didn't catch this on my machine...oversight

_GNU_SOURCE works differently than other libraries and creates
function pointer issues

semget, semop, semctl; semtimedop not implemented and struct semun not defined

Fixed trailing whitespace in x86.rs and reverted the minor version number in the Cargo.toml

Added equivalents for user_regs_struct and user_struct from linux/user.h for x86 and x86_64.

There is a compatibility issue regarding the type of a flag parameter:
int vs uint. Linux does declare the syscall to use uint and musl
followed it, but it is incompatible with other POSIX recv*/send*
syscalls. So it seems to be wise to follow the glibc version of
prototypes with int.

Signed-off-by: NODA, Kai <nodakai@gmail.com>

Only for Linux and Android currently, though they also exist on BSDs

We need to create an initialized sigaction struct for Linux syscalls
thus its fields need to be public.

The field was named _restorer before but system libc/kernel uapi name the field
sa_restorer.

MINSIGSTKSZ is a minimum size of process stack allowed