Struct ExecutableMemory 

pub struct ExecutableMemory { /* private fields */ }

Executable memory for JIT-compiled code

Implementations

impl ExecutableMemory

pub fn allocate_writable(size: usize) -> Result<Self, RasError>

pub fn make_executable(&mut self) -> Result<(), RasError>

pub fn allocate(size: usize) -> Result<Self, RasError>

pub fn write_code(&mut self, code: &[u8]) -> Result<(), RasError>

pub fn code_start(&self) -> *const u8

pub unsafe fn entry_fn<F: Sized>(&self) -> F

Interprets the first byte of this region as the entry address for a function pointer.

This is not a pointer-to-pointer: the mapping begins with machine code, not a stored address. Do not use *const F to the entry and then dereference; that would load instruction bytes as a pointer.

Safety

The caller must ensure F matches the ABI and signature of the generated code, and that this ExecutableMemory outlives every call through F.

Trait Implementations

impl Drop for ExecutableMemory

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.