Struct ExecutableAnonymousMemoryMap

pub struct ExecutableAnonymousMemoryMap { /* private fields */ }

Represents an executable memory map that can be used to generate program code into.

Implementations

impl ExecutableAnonymousMemoryMap

pub fn new( length: usize, allocate_in_first_2Gb: bool, ignore_mlock_failure: bool, ) -> Result<Self, ExecutableAnonymousMemoryMapCreationError>

Create a new instance.

length is rounded up to the nearest power of two, and is floored at the smallest page size (4Kb).

On Linux, allocate_in_first_2Gb should ideally be true.

On Linux, there are historic bugs in mlock which may require ignore_mlock_failure to be true.

Memory is created using an anonymous, shared mmap with no access rights (not even read) which is then locked (mlock’d).

pub fn instruction_stream( &mut self, instruction_stream_hints: &InstructionStreamHints, ) -> InstructionStream<'_>

Get an assembler to this anonymous map.

Trait Implementations

impl Debug for ExecutableAnonymousMemoryMap

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for ExecutableAnonymousMemoryMap

fn drop(&mut self)

Executes the destructor for this type.