Struct wasmer_compiler::engine::code_memory::CodeMemory

pub struct CodeMemory {
    frame_info_registration: Option<GlobalFrameInfoRegistration>,
    unwind_registry: UnwindRegistry,
    mmap: Mmap,
    start_of_nonexecutable_pages: usize,
}

Memory manager for executable code.

Fields

frame_info_registration: Option<GlobalFrameInfoRegistration>

unwind_registry: UnwindRegistry

mmap: Mmap

start_of_nonexecutable_pages: usize

Implementations

impl CodeMemory

pub fn new() -> Self

Create a new CodeMemory instance.

pub fn unwind_registry_mut(&mut self) -> &mut UnwindRegistry

Mutably get the UnwindRegistry.

pub fn allocate<'module, 'memory, FunctionBody, CustomSection>( &'memory mut self, functions: &'memory [&'module FunctionBody], executable_sections: &'memory [&'module CustomSection], data_sections: &'memory [&'module CustomSection], ) -> Result<(Vec<&'memory mut [VMFunctionBody]>, Vec<&'memory mut [u8]>, Vec<&'memory mut [u8]>), String>

where FunctionBody: FunctionBodyLike<'module> + 'module, CustomSection: CustomSectionLike<'module> + 'module,

Allocate a single contiguous block of memory at a fixed virtual address for the functions and custom sections, and copy the data in place.

pub fn publish(&mut self)

Apply the page permissions.

fn function_allocation_size<'a>(func: &'a impl FunctionBodyLike<'a>) -> usize

Calculates the allocation size of the given compiled function.

fn copy_function<'module, 'memory>( registry: &mut UnwindRegistry, func: &'module impl FunctionBodyLike<'module>, buf: &'memory mut [u8], ) -> &'memory mut [VMFunctionBody]

Copies the data of the compiled function to the given buffer.

This will also add the function to the current function table.

fn view_as_mut_vmfunc_slice(slice: &mut [u8]) -> &mut [VMFunctionBody]

Convert mut a slice from u8 to VMFunctionBody.

pub fn register_frame_info(&mut self, frame_info: GlobalFrameInfoRegistration)

Register the frame info, so it’s free when the mememory gets freed