Module polkavm_common::abi

Everything in this module affects the ABI of the guest programs, either by affecting their observable behavior (no matter how obscure), or changing which programs are accepted by the VM.

Structs

• GuestMemoryConfig
  The memory configuration used by a given guest program.

Constants

• VM_ADDR_RETURN_TO_HOST
  The address which, when jumped to, will return to the host.
• VM_ADDR_USER_MEMORY
  The address at which the program’s memory starts inside of the VM.
• VM_ADDR_USER_STACK_HIGH
  The address at which the program’s stack starts inside of the VM.
• VM_MAXIMUM_EXPORT_COUNT
  The maximum number of functions the program can export.
• VM_MAXIMUM_EXTERN_ARG_COUNT
  The maximum number of arguments that can be used in imported functions.
• VM_MAXIMUM_IMPORT_COUNT
  The maximum number of functions the program can import.
• VM_MAXIMUM_INSTRUCTION_COUNT
  The maximum number of VM instructions a program can be composed of.
• VM_MAXIMUM_JUMP_TARGET
  The maximum jump target a program can declare.
• VM_MAXIMUM_MEMORY_SIZE
  The total maximum amount of memory a program can use.
• VM_PAGE_SIZE
  The page size of the VM.