* Correctly align the stack
* Fix argument order of the ldp instructions
* Remove unnecessary ldr x5 instruction

Fix posix prio process (same as MR458 with fixed commits)

See merge request !459

Use standard casing and mangling for internal errno

See merge request !457

Add Crypt functions

See merge request !453

Use Cell representation for errno

See merge request !456

Panic when getpagesize() cannot succeed as specified

See merge request !455

Update rust-toolchain.toml

See merge request !452

This matches the version actually used by Redox OS. It also supports the
sparse index, which prevents having to clone the crates.io registry git
repo when rust-analyzer tries to run cargo metadata on relibc.

Scheme fmt

See merge request !451

Add forkpty, ptsname and posix_openpt

See merge request !450

Remove ralloc

See merge request !449