Module mmtk::util::heap::layout::vm_layout

The module defines virutal memory layout parameters.

Structs

• VMLayout
  Runtime-initialized virtual memory constants

Constants

• BYTES_IN_CHUNK
  Coarsest unit of address space allocation.
• CHUNK_MASK
  Mask for chunk size.
• LOG_BYTES_IN_CHUNK
  log_2 of the coarsest unit of address space allocation.
• LOG_MMAP_CHUNK_BYTES
  log_2 of the granularity at which we map and unmap virtual address space in the heap
• MMAP_CHUNK_BYTES
  Granularity at which we map and unmap virtual address space in the heap
• PAGES_IN_CHUNK
  Coarsest unit of address space allocation, in pages

Statics

• VM_LAYOUT 🔒
• VM_LAYOUT_FETCHED 🔒

Functions

• vm_layout
  Get the current virtual memory layout in use. If the binding would like to set a custom virtual memory layout (crate::mmtk::MMTKBuilder::set_vm_layout), they should not call this function before they set a custom layout.