Provides a global allocator using the umm_malloc library.
umm_malloc is a small and simple memory allocator designed for embedded systems.
It is able to allocate and free quickly with limited memory fragmentation.
All allocations from this allocator are aligned by 8 bytes. Requesting a larger alignment is not implemented and will panic.
sync
Enables critical sections around the allocator internals, which must be implemented
with the external functions _umm_critical_entry() and _umm_critical_exit().
cortex-m
When combined with sync, provides an implementation of critical sections
by disabling interrupts.
first-fit
Use the first available block for allocation, rather than search for a better fit.
umm_malloc has features for collecting metrics and detecting heap corruption,
which could be exposed conveniently with cargo features.
An implementation of memalign could be added to umm_malloc.