adityamandaleeka/mmap_allocator

Memory allocator built on top of mmap

mmap_allocator

Memory allocator built on top of mmap.

Even though mprotect on Linux permits changing the protection of memory on the heap to be executable, it is considered a security risk. Some configurations of SELinux will actively prevent this from happening by failing on the mprotect. On platforms where this is the case (such as CentOS and RedHat), rather than using malloc and mprotect, anonymous executable memory can be allocated using mmap. Fundamentally, that is what this allocator does.

This code works, but it's meant as a reference and contains design decisions that may not apply to every use case.