linux-libc-auxv 0.2.1

Linux passes an initial stack layout to applications, that contains `argc`, `argv`, `envp`, and the `auxiliary vector` right above the stack pointer. The libc of a Linux program parses this structure in its `_start`-symbol ("crt0") and passes the right pointers as arguments to `main` afterward. This crate helps to construct and parse this data structure in `no_std` environments and for different address spaces.