Macro bern_kernel::alloc_static_stack

macro_rules! alloc_static_stack {
    ($size:tt) => { ... };
}

Allocate a static stack with given size in bytes.

The macro checks whether the size meets the size and alignment requirements of the memory protection hardware in use. e.g.

let stack: bern_kernel::stack::Stack = alloc_static_stack!(512);
// ok

let stack: bern_kernel::stack::Stack = alloc_static_stack!(431);
// compiler error on cortex-m as size is not feasible for memory protection

The arrays for static stacks are put in the .task_stack linker section.

Safety

This macro must no be called multiple times as new stack objects to the same static stack will be returned.