[−][src]Crate wasmtime_runtime

Runtime library support for Wasmtime.

Modules

Runtime library calls. Note that wasm compilers may sometimes perform these inline rather than calling them, particularly when CPUs have special instructions which compute them directly.

Structs

GdbJitImageRegistration	Registeration for JIT image
Imports	Resolved import pointers.
InstanceHandle	A handle holding an `Instance` of a WebAssembly module.
LinkError	An link error while instantiating a module.
Mmap	A simple struct consisting of a page-aligned pointer to page-aligned and initially-zeroed memory and a length.
SignatureRegistry	WebAssembly requires that the caller and callee signatures in an indirect call must match. To implement this efficiently, keep a registry of all signatures, shared by all instances, so that call sites can just do an index comparison.
TrapDescription	Description of a trap.
TrapRegistration	RAII structure returned from `TrapRegistry::register_trap` to unregister trap information on drop.
TrapRegistry	The registry maintains descriptions of traps in currently allocated functions.
VMCallerCheckedAnyfunc	The VM caller-checked "anyfunc" record, for caller-side signature checking. It consists of the actual function pointer and a signature id to be checked by the caller.
VMContext	The VM "context", which is pointed to by the `vmctx` arg in Cranelift. This has information about globals, memories, tables, and other runtime state associated with the current instance.
VMFunctionBody	A placeholder byte-sized type which is just used to provide some amount of type safety when dealing with pointers to JIT-compiled function bodies. Note that it's deliberately not Copy, as we shouldn't be carelessly copying function body bytes around.
VMFunctionImport	An imported function.
VMGlobalDefinition	The storage for a WebAssembly global defined within the instance.
VMGlobalImport	The fields compiled code needs to access to utilize a WebAssembly global variable imported from another instance.
VMInvokeArgument	The storage for a WebAssembly invocation argument
VMMemoryDefinition	The fields compiled code needs to access to utilize a WebAssembly linear memory defined within the instance, namely the start address and the size in bytes.
VMMemoryImport	The fields compiled code needs to access to utilize a WebAssembly linear memory imported from another instance.
VMSharedSignatureIndex	An index into the shared signature registry, usable for checking signatures at indirect calls.
VMTableDefinition	The fields compiled code needs to access to utilize a WebAssembly table defined within the instance.
VMTableImport	The fields compiled code needs to access to utilize a WebAssembly table imported from another instance.

Enums

Export	The value of an export passed from one instance to another.
InstantiationError	An error while instantiating a module.
Trap	Stores trace message with backtrace.

Constants

VERSION

Version number of this crate.

Functions

catch_traps ^⚠	Catches any wasm traps that happen within the execution of `closure`, returning them as a `Result`.
raise_user_trap ^⚠	Raises a user-defined trap immediately.
resume_panic ^⚠	Carries a Rust panic across wasm code and resumes the panic on the other side.
wasmtime_call_trampoline ^⚠	Call the wasm function pointed to by `callee`.