For shared memory, the max memory size must be defined in advanced. Re-allocation for growing memory can't be used as it might change the base address, therefore when OS_ENABLE_HW_BOUND_CHECK is enabled the memory is mmaped, and if the flag is disabled, the memory is allocated. This change introduces a flag that allows users to use mmap for reserving memory address space even if the OS_ENABLE_HW_BOUND_CHECK is disabled.
This folder contains the platform abstract layer for multiple platforms. To support a new platform, you can simply create a new folder here and implement all the APIs defined in include folder.
Refer to port_wamr.md for how to port WAMR to a target platform.