Crate dusk_wasmtime_cranelift 

Support for compiling with Cranelift.

This crate provides an implementation of the wasmtime_environ::Compiler and wasmtime_environ::CompilerBuilder traits.

Modules

isa_builder

Structs

CompiledFunction

Compiled function: machine code body, jump table offsets, and unwind information.

CompiledFunctionMetadata

The metadata for the compiled function.

FunctionAddressMap

Metadata to translate from binary offsets back to the original location found in the wasm input.

ModuleTextBuilder

A helper structure used to assemble the final text section of an exectuable, plus unwinding information and other related details.

Relocation

A record of a relocation to perform.

Constants

ALWAYS_TRAP_CODE

A custom code with TrapCode::User which is used by always-trap shims which indicates that, as expected, the always-trapping function indeed did trap. This effectively provides a better error message as opposed to a bland “unreachable code reached”

CANNOT_ENTER_CODE

A custom code with TrapCode::User corresponding to being unable to reenter a component due to its reentrance limitations. This is used in component adapters to provide a more useful error message in such situations.

NS_WASMTIME_BUILTIN

Namespace for builtin function trampolines. The index is the index of the builtin that’s being referenced. These trampolines invoke the real host function through an indirect function call loaded by the VMContext.

NS_WASM_FUNC

Namespace corresponding to wasm functions, the index is the index of the defined function that’s being referenced.

Functions

builder

clif_flags_to_wasmtime

Converts cranelift_codegen settings to the wasmtime_environ equivalent.

mach_trap_to_trap

Converts machine traps to trap information.