Struct wasmtime_environ::VMOffsets

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pub struct VMOffsets<P> {
    pub ptr: P,
    pub num_imported_functions: u32,
    pub num_imported_tables: u32,
    pub num_imported_memories: u32,
    pub num_imported_globals: u32,
    pub num_defined_tables: u32,
    pub num_defined_memories: u32,
    pub num_owned_memories: u32,
    pub num_defined_globals: u32,
    pub num_escaped_funcs: u32,
    /* private fields */
}

Expand description

This class computes offsets to fields within VMContext and other related structs that JIT code accesses directly.

Fields

ptr: P

The size in bytes of a pointer on the target.

num_imported_functions: u32

The number of imported functions in the module.

num_imported_tables: u32

The number of imported tables in the module.

num_imported_memories: u32

The number of imported memories in the module.

num_imported_globals: u32

The number of imported globals in the module.

num_defined_tables: u32

The number of defined tables in the module.

num_defined_memories: u32

The number of defined memories in the module.

num_owned_memories: u32

The number of memories owned by the module instance.

num_defined_globals: u32

The number of defined globals in the module.

num_escaped_funcs: u32

The number of escaped functions in the module, the size of the anyfuncs array.

Implementations

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impl<P: PtrSize> VMOffsets

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pub fn new(ptr: P, module: &Module) -> Self

Return a new VMOffsets instance, for a given pointer size.

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pub fn pointer_size(&self) -> u8

Returns the size, in bytes, of the target

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pub fn region_sizes(&self) -> impl Iterator<Item = (&str, u32 )>

Returns an iterator which provides a human readable description and a byte size. The iterator returned will iterate over the bytes allocated to the entire VMOffsets structure to explain where each byte size is coming from.

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impl<P: PtrSize> VMOffsets

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pub fn vmfunction_import_body(&self) -> u8

The offset of the body field.

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pub fn vmfunction_import_vmctx(&self) -> u8

The offset of the vmctx field.

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pub fn size_of_vmfunction_import(&self) -> u8

Return the size of VMFunctionImport.

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impl<P: PtrSize> VMOffsets

Offsets for *const VMFunctionBody.

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pub fn size_of_vmfunction_body_ptr(&self) -> u8

The size of the current_elements field.

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impl<P: PtrSize> VMOffsets

Offsets for VMTableImport.

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pub fn vmtable_import_from(&self) -> u8

The offset of the from field.

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pub fn vmtable_import_vmctx(&self) -> u8

The offset of the vmctx field.

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pub fn size_of_vmtable_import(&self) -> u8

Return the size of VMTableImport.

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impl<P: PtrSize> VMOffsets

Offsets for VMTableDefinition.

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pub fn vmtable_definition_base(&self) -> u8

The offset of the base field.

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pub fn vmtable_definition_current_elements(&self) -> u8

The offset of the current_elements field.

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pub fn size_of_vmtable_definition_current_elements(&self) -> u8

The size of the current_elements field.

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pub fn size_of_vmtable_definition(&self) -> u8

Return the size of VMTableDefinition.

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impl<P: PtrSize> VMOffsets

Offsets for VMMemoryImport.

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pub fn vmmemory_import_from(&self) -> u8

The offset of the from field.

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pub fn vmmemory_import_vmctx(&self) -> u8

The offset of the vmctx field.

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pub fn size_of_vmmemory_import(&self) -> u8

Return the size of VMMemoryImport.

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impl<P: PtrSize> VMOffsets

Offsets for VMGlobalImport.

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pub fn vmglobal_import_from(&self) -> u8

The offset of the from field.

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pub fn size_of_vmglobal_import(&self) -> u8

Return the size of VMGlobalImport.

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impl<P: PtrSize> VMOffsets

Offsets for VMSharedSignatureIndex.

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pub fn size_of_vmshared_signature_index(&self) -> u8

Return the size of VMSharedSignatureIndex.

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impl<P: PtrSize> VMOffsets

Offsets for VMContext.

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pub fn vmctx_magic(&self) -> u32

Return the offset to the magic value in this VMContext.

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pub fn vmctx_runtime_limits(&self) -> u32

Return the offset to the VMRuntimeLimits structure

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pub fn vmctx_callee(&self) -> u32

Return the offset to the callee member in this VMContext.

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pub fn vmctx_epoch_ptr(&self) -> u32

Return the offset to the *const AtomicU64 epoch-counter pointer.

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pub fn vmctx_externref_activations_table(&self) -> u32

The offset of the *mut VMExternRefActivationsTable member.

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pub fn vmctx_store(&self) -> u32

The offset of the *const dyn Store member.

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pub fn vmctx_signature_ids_array(&self) -> u32

The offset of the signature_ids array pointer.

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pub fn vmctx_imported_functions_begin(&self) -> u32

The offset of the tables array.

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pub fn vmctx_imported_tables_begin(&self) -> u32

The offset of the tables array.

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pub fn vmctx_imported_memories_begin(&self) -> u32

The offset of the memories array.

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pub fn vmctx_imported_globals_begin(&self) -> u32

The offset of the globals array.

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pub fn vmctx_tables_begin(&self) -> u32

The offset of the tables array.

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pub fn vmctx_memories_begin(&self) -> u32

The offset of the memories array.

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pub fn vmctx_owned_memories_begin(&self) -> u32

The offset of the owned_memories array.

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pub fn vmctx_globals_begin(&self) -> u32

The offset of the globals array.

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pub fn vmctx_anyfuncs_begin(&self) -> u32

The offset of the anyfuncs array.

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pub fn vmctx_builtin_functions(&self) -> u32

The offset of the builtin functions array.

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pub fn size_of_vmctx(&self) -> u32

Return the size of the VMContext allocation.

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pub fn vmctx_vmfunction_import(&self, index: FuncIndex) -> u32

Return the offset to VMFunctionImport index index.

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pub fn vmctx_vmtable_import(&self, index: TableIndex) -> u32

Return the offset to VMTableImport index index.

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pub fn vmctx_vmmemory_import(&self, index: MemoryIndex) -> u32

Return the offset to VMMemoryImport index index.

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pub fn vmctx_vmglobal_import(&self, index: GlobalIndex) -> u32

Return the offset to VMGlobalImport index index.

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pub fn vmctx_vmtable_definition(&self, index: DefinedTableIndex) -> u32

Return the offset to VMTableDefinition index index.

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pub fn vmctx_vmmemory_pointer(&self, index: DefinedMemoryIndex) -> u32

Return the offset to the *mut VMMemoryDefinition at index index.

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pub fn vmctx_vmmemory_definition(&self, index: OwnedMemoryIndex) -> u32

Return the offset to the owned VMMemoryDefinition at index index.

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pub fn vmctx_vmglobal_definition(&self, index: DefinedGlobalIndex) -> u32

Return the offset to the VMGlobalDefinition index index.

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pub fn vmctx_anyfunc(&self, index: AnyfuncIndex) -> u32

Return the offset to the VMCallerCheckedAnyfunc for the given function index (either imported or defined).

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pub fn vmctx_vmfunction_import_body(&self, index: FuncIndex) -> u32

Return the offset to the body field in *const VMFunctionBody index index.

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pub fn vmctx_vmfunction_import_vmctx(&self, index: FuncIndex) -> u32

Return the offset to the vmctx field in *const VMFunctionBody index index.

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pub fn vmctx_vmtable_import_from(&self, index: TableIndex) -> u32

Return the offset to the from field in VMTableImport index index.

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pub fn vmctx_vmtable_definition_base(&self, index: DefinedTableIndex) -> u32

Return the offset to the base field in VMTableDefinition index index.

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pub fn vmctx_vmtable_definition_current_elements(
&self,
index: DefinedTableIndex
) -> u32

Return the offset to the current_elements field in VMTableDefinition index index.

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pub fn vmctx_vmmemory_import_from(&self, index: MemoryIndex) -> u32

Return the offset to the from field in VMMemoryImport index index.

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pub fn vmctx_vmmemory_import_vmctx(&self, index: MemoryIndex) -> u32

Return the offset to the vmctx field in VMMemoryImport index index.

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pub fn vmctx_vmmemory_definition_base(&self, index: OwnedMemoryIndex) -> u32

Return the offset to the base field in VMMemoryDefinition index index.

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pub fn vmctx_vmmemory_definition_current_length(
&self,
index: OwnedMemoryIndex
) -> u32

Return the offset to the current_length field in VMMemoryDefinition index index.

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pub fn vmctx_vmglobal_import_from(&self, index: GlobalIndex) -> u32

Return the offset to the from field in VMGlobalImport index index.

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impl<P: PtrSize> VMOffsets

Offsets for VMExternData.

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pub fn vm_extern_data_ref_count(&self) -> u32

Return the offset for VMExternData::ref_count.

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impl<P: PtrSize> VMOffsets

Offsets for VMExternRefActivationsTable.

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pub fn vm_extern_ref_activation_table_next(&self) -> u32

Return the offset for VMExternRefActivationsTable::next.

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pub fn vm_extern_ref_activation_table_end(&self) -> u32

Return the offset for VMExternRefActivationsTable::end.

Trait Implementations

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impl<P: Clone> Clone for VMOffsets

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fn clone(&self) -> VMOffsets

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl<P: Debug> Debug for VMOffsets

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

Formats the value using the given formatter. Read more

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impl<P: PtrSize> From<VMOffsetsFields> for VMOffsets

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fn from(fields: VMOffsetsFields) -> VMOffsets

Performs the conversion.

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impl<P: Copy> Copy for VMOffsets

Auto Trait Implementations

impl RefUnwindSafe for VMOffsets where
P: RefUnwindSafe,

impl Send for VMOffsets where
P: Send,

impl Sync for VMOffsets where
P: Sync,

impl Unpin for VMOffsets where
P: Unpin,

impl UnwindSafe for VMOffsets where
P: UnwindSafe,

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

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

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct wasmtime_environ::VMOffsets

Fields

Implementations

impl<P: PtrSize> VMOffsets<P>

pub fn new(ptr: P, module: &Module) -> Self

pub fn pointer_size(&self) -> u8

pub fn region_sizes(&self) -> impl Iterator<Item = (&str, u32)>

impl<P: PtrSize> VMOffsets<P>

pub fn vmfunction_import_body(&self) -> u8

pub fn vmfunction_import_vmctx(&self) -> u8

pub fn size_of_vmfunction_import(&self) -> u8

impl<P: PtrSize> VMOffsets<P>

pub fn size_of_vmfunction_body_ptr(&self) -> u8

impl<P: PtrSize> VMOffsets<P>

pub fn vmtable_import_from(&self) -> u8

pub fn vmtable_import_vmctx(&self) -> u8

pub fn size_of_vmtable_import(&self) -> u8

impl<P: PtrSize> VMOffsets<P>

pub fn vmtable_definition_base(&self) -> u8

pub fn vmtable_definition_current_elements(&self) -> u8

pub fn size_of_vmtable_definition_current_elements(&self) -> u8

pub fn size_of_vmtable_definition(&self) -> u8

impl<P: PtrSize> VMOffsets<P>

pub fn vmmemory_import_from(&self) -> u8

pub fn vmmemory_import_vmctx(&self) -> u8

pub fn size_of_vmmemory_import(&self) -> u8

impl<P: PtrSize> VMOffsets<P>

pub fn vmglobal_import_from(&self) -> u8

pub fn size_of_vmglobal_import(&self) -> u8

impl<P: PtrSize> VMOffsets<P>

pub fn size_of_vmshared_signature_index(&self) -> u8

impl<P: PtrSize> VMOffsets<P>

pub fn vmctx_magic(&self) -> u32

pub fn vmctx_runtime_limits(&self) -> u32

pub fn vmctx_callee(&self) -> u32

pub fn vmctx_epoch_ptr(&self) -> u32

pub fn vmctx_externref_activations_table(&self) -> u32

pub fn vmctx_store(&self) -> u32

pub fn vmctx_signature_ids_array(&self) -> u32

pub fn vmctx_imported_functions_begin(&self) -> u32

pub fn vmctx_imported_tables_begin(&self) -> u32

pub fn vmctx_imported_memories_begin(&self) -> u32

pub fn vmctx_imported_globals_begin(&self) -> u32

pub fn vmctx_tables_begin(&self) -> u32

pub fn vmctx_memories_begin(&self) -> u32

pub fn vmctx_owned_memories_begin(&self) -> u32

pub fn vmctx_globals_begin(&self) -> u32

pub fn vmctx_anyfuncs_begin(&self) -> u32

pub fn vmctx_builtin_functions(&self) -> u32

pub fn size_of_vmctx(&self) -> u32

pub fn vmctx_vmfunction_import(&self, index: FuncIndex) -> u32

pub fn vmctx_vmtable_import(&self, index: TableIndex) -> u32

pub fn vmctx_vmmemory_import(&self, index: MemoryIndex) -> u32

pub fn vmctx_vmglobal_import(&self, index: GlobalIndex) -> u32

pub fn vmctx_vmtable_definition(&self, index: DefinedTableIndex) -> u32

pub fn vmctx_vmmemory_pointer(&self, index: DefinedMemoryIndex) -> u32

pub fn vmctx_vmmemory_definition(&self, index: OwnedMemoryIndex) -> u32

pub fn vmctx_vmglobal_definition(&self, index: DefinedGlobalIndex) -> u32

pub fn vmctx_anyfunc(&self, index: AnyfuncIndex) -> u32

pub fn vmctx_vmfunction_import_body(&self, index: FuncIndex) -> u32

pub fn vmctx_vmfunction_import_vmctx(&self, index: FuncIndex) -> u32

pub fn vmctx_vmtable_import_from(&self, index: TableIndex) -> u32

pub fn vmctx_vmtable_definition_base(&self, index: DefinedTableIndex) -> u32

pub fn vmctx_vmtable_definition_current_elements( &self, index: DefinedTableIndex) -> u32

pub fn vmctx_vmmemory_import_from(&self, index: MemoryIndex) -> u32

pub fn vmctx_vmmemory_import_vmctx(&self, index: MemoryIndex) -> u32

pub fn vmctx_vmmemory_definition_base(&self, index: OwnedMemoryIndex) -> u32

pub fn vmctx_vmmemory_definition_current_length( &self, index: OwnedMemoryIndex) -> u32

pub fn vmctx_vmglobal_import_from(&self, index: GlobalIndex) -> u32

impl<P: PtrSize> VMOffsets<P>

pub fn vm_extern_data_ref_count(&self) -> u32

impl<P: PtrSize> VMOffsets<P>

pub fn vm_extern_ref_activation_table_next(&self) -> u32

pub fn vm_extern_ref_activation_table_end(&self) -> u32

Trait Implementations

impl<P: Clone> Clone for VMOffsets<P>

fn clone(&self) -> VMOffsets<P>

fn clone_from(&mut self, source: &Self)

impl<P: Debug> Debug for VMOffsets<P>

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

pub fn region_sizes(&self) -> impl Iterator<Item = (&str, u32 )>

pub fn vmctx_vmtable_definition_current_elements(
&self,
index: DefinedTableIndex
) -> u32

pub fn vmctx_vmmemory_definition_current_length(
&self,
index: OwnedMemoryIndex
) -> u32

impl<P> RefUnwindSafe for VMOffsets<P> where
P: RefUnwindSafe,

impl<P> Send for VMOffsets<P> where
P: Send,

impl<P> Sync for VMOffsets<P> where
P: Sync,

impl<P> Unpin for VMOffsets<P> where
P: Unpin,

impl<P> UnwindSafe for VMOffsets<P> where
P: UnwindSafe,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,