[−][src]Crate wasmtime_runtime
Runtime library support for Wasmtime.
Modules
libcalls | 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 |
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. |
TrapRegistrationGuard | RAII guard for deregistering traps |
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 |
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. |
Constants
VERSION | Version number of this crate. |
Functions
get_mut_trap_registry | Gets guarded writable reference to traps registry |
get_trap_registry | Gets guarded readable reference to traps registry |
wasmtime_call⚠ | Call the wasm function pointed to by |
wasmtime_call_trampoline⚠ | Call the wasm function pointed to by |
wasmtime_init_eager | This function performs the low-overhead signal handler initialization that we want to do eagerly to ensure a more-deterministic global process state. This is especially relevant for signal handlers since handler ordering depends on installation order: the wasm signal handler must run before the other crash handlers and since POSIX signal handlers work LIFO, this function needs to be called at the end of the startup process, after other handlers have been installed. This function can thus be called multiple times, having no effect after the first call. |
wasmtime_init_finish | Assuming |