Struct cretonne_simplejit::SimpleJITBackend

pub struct SimpleJITBackend { /* fields omitted */ }

A SimpleJITBackend implements Backend and emits code and data into memory where it can be directly called and accessed.

Methods

impl SimpleJITBackend

pub fn new() -> Self

Create a new SimpleJITBackend.

pub fn with_isa(isa: Box<TargetIsa>) -> Self

Create a new SimpleJITBackend with an arbitrary target. This is mainly useful for testing.

SimpleJIT requires a TargetIsa configured for non-PIC.

To create a SimpleJITBackend for native use, use the new constructor instead.

Trait Implementations

impl<'simple_jit_backend> Backend for SimpleJITBackend

type CompiledFunction = SimpleJITCompiledFunction

The results of compiling a function.

type CompiledData = SimpleJITCompiledData

The results of "compiling" a data object.

type FinalizedFunction = *const u8

The completed output artifact for a function, if this is meaningful for the Backend.

type FinalizedData = (*mut u8, usize)

The completed output artifact for a data object, if this is meaningful for the Backend.

fn isa(&self) -> &TargetIsa

Return the TargetIsa to compile for.

fn declare_function(&mut self, _name: &str, _linkage: Linkage)

Declare a function.

fn declare_data(&mut self, _name: &str, _linkage: Linkage, _writable: bool)

Declare a data object.

fn define_function(
    &mut self,
    _name: &str,
    ctx: &Context,
    _namespace: &ModuleNamespace<Self>,
    code_size: u32
) -> Result<Self::CompiledFunction, CtonError>

Define a function, producing the function body from the given Context.

fn define_data(
    &mut self,
    _name: &str,
    data: &DataContext,
    _namespace: &ModuleNamespace<Self>
) -> Result<Self::CompiledData, CtonError>

Define a zero-initialized data object of the given size.

fn write_data_funcaddr(
    &mut self,
    _data: &mut Self::CompiledData,
    _offset: usize,
    _what: FuncRef
)

Write the address of what into the data for data at offset. data must refer to a defined data object.

fn write_data_dataaddr(
    &mut self,
    _data: &mut Self::CompiledData,
    _offset: usize,
    _what: GlobalVar,
    _usize: Addend
)

Write the address of what plus addend into the data for data at offset. data must refer to a defined data object.

fn finalize_function(
    &mut self,
    func: &Self::CompiledFunction,
    namespace: &ModuleNamespace<Self>
) -> Self::FinalizedFunction

Perform all outstanding relocations on the given function. This requires all Local and Export entities referenced to be defined.

fn finalize_data(
    &mut self,
    data: &Self::CompiledData,
    namespace: &ModuleNamespace<Self>
) -> Self::FinalizedData

Perform all outstanding relocations on the given data object. This requires all Local and Export entities referenced to be defined.