Adds a header only include utility folder that can be included from
everywhere.
Contains syscall helpers for older glibc and defines for older Linux
uapi headers missing some defines.
Migrates lingering instances of the old logger over to fmt where
applicable. This allows removing some of the old defines and functions.
The only remaining usages of the printf-based variant of the logger is
in Tests/LinuxSyscalls/Syscalls.cpp for the strace handling.
If MAP_32BIT was failing then we weren't checking error result
correctly.
This was causing us to crash.
Now add a helper function for checking syscall results since it is easy
to mess up.
Replaces the few cases where we were manually checking with the helper.
Fixes a Dota: Underlords crash
Previous we were just using an address hint to emulate MAP_32BIT.
Seemingly this behaviour has changed on AArch64 where it now isn't
guaranteed to scan up from the hint provided if exact allocation fails.
Now we pull in the full 32-bit allocator and add support for MAP_32BIT
in it. This limits the allocations there in to the first 2GB which Linux
expects.
Necessary for Mono's trampolines to work since it requires code to be in
the first 2GB on x86-64.
Ryan Houdek