70345aff31
* Remove all global state from the caching system This commit is a continuation of an effort to remove usages of `lazy_static!` and similar global state macros which can otherwise be accomodated with passing objects around. Previously there was a global cache system initialized per-process, but it was initialized in a bit of a roundabout way and wasn't actually reachable from the `wasmtime` crate itself. The changes here remove all global state, refactor many of the internals in the cache system, and makes configuration possible through the `wasmtime` crate. Specifically some changes here are: * Usage of `lazy_static!` and many `static` items in the cache module have all been removed. * Global `cache_config()`, `worker()`, and `init()` functions have all been removed. Instead a `CacheConfig` is a "root object" which internally owns its worker and passing around the `CacheConfig` is required for cache usage. * The `wasmtime::Config` structure has grown options to load and parse cache files at runtime. Currently only loading files is supported, although we can likely eventually support programmatically configuring APIs as well. * Usage of the `spin` crate has been removed and the dependency is removed. * The internal `errors` field of `CacheConfig` is removed, instead changing all relevant methods to return a `Result<()>` instead of storing errors internally. * Tests have all been updated with the new interfaces and APIs. Functionally no real change is intended here. Usage of the `wasmtime` CLI, for example, should still enable the cache by default. * Fix lightbeam compilation
76 lines
2.4 KiB
Rust
76 lines
2.4 KiB
Rust
//! Standalone environment for WebAssembly using Cranelift. Provides functions to translate
|
|
//! `get_global`, `set_global`, `memory.size`, `memory.grow`, `call_indirect` that hardcode in
|
|
//! the translation the base addresses of regions of memory that will hold the globals, tables and
|
|
//! linear memories.
|
|
|
|
#![deny(missing_docs, trivial_numeric_casts, unused_extern_crates)]
|
|
#![warn(unused_import_braces)]
|
|
#![cfg_attr(feature = "clippy", plugin(clippy(conf_file = "../../clippy.toml")))]
|
|
#![cfg_attr(
|
|
feature = "cargo-clippy",
|
|
allow(clippy::new_without_default, clippy::new_without_default)
|
|
)]
|
|
#![cfg_attr(
|
|
feature = "cargo-clippy",
|
|
warn(
|
|
clippy::float_arithmetic,
|
|
clippy::mut_mut,
|
|
clippy::nonminimal_bool,
|
|
clippy::option_map_unwrap_or,
|
|
clippy::option_map_unwrap_or_else,
|
|
clippy::print_stdout,
|
|
clippy::unicode_not_nfc,
|
|
clippy::use_self
|
|
)
|
|
)]
|
|
|
|
mod address_map;
|
|
mod compilation;
|
|
mod data_structures;
|
|
mod func_environ;
|
|
mod module;
|
|
mod module_environ;
|
|
mod tunables;
|
|
mod vmoffsets;
|
|
|
|
mod cache;
|
|
|
|
pub mod cranelift;
|
|
#[cfg(feature = "lightbeam")]
|
|
pub mod lightbeam;
|
|
|
|
pub use crate::address_map::{
|
|
FunctionAddressMap, InstructionAddressMap, ModuleAddressMap, ModuleMemoryOffset,
|
|
ModuleVmctxInfo, ValueLabelsRanges,
|
|
};
|
|
pub use crate::cache::create_new_config as cache_create_new_config;
|
|
pub use crate::cache::CacheConfig;
|
|
pub use crate::compilation::{
|
|
Compilation, CompileError, CompiledFunction, CompiledFunctionUnwindInfo,
|
|
CompiledFunctionUnwindInfoReloc, Compiler, Relocation, RelocationTarget, Relocations,
|
|
TrapInformation, Traps,
|
|
};
|
|
pub use crate::cranelift::Cranelift;
|
|
pub use crate::data_structures::*;
|
|
pub use crate::func_environ::BuiltinFunctionIndex;
|
|
#[cfg(feature = "lightbeam")]
|
|
pub use crate::lightbeam::Lightbeam;
|
|
pub use crate::module::{
|
|
Export, MemoryPlan, MemoryStyle, Module, TableElements, TablePlan, TableStyle,
|
|
};
|
|
pub use crate::module_environ::{
|
|
translate_signature, DataInitializer, DataInitializerLocation, FunctionBodyData,
|
|
ModuleEnvironment, ModuleTranslation,
|
|
};
|
|
pub use crate::tunables::Tunables;
|
|
pub use crate::vmoffsets::{TargetSharedSignatureIndex, VMOffsets};
|
|
|
|
/// WebAssembly page sizes are defined to be 64KiB.
|
|
pub const WASM_PAGE_SIZE: u32 = 0x10000;
|
|
|
|
/// The number of pages we can have before we run out of byte index space.
|
|
pub const WASM_MAX_PAGES: u32 = 0x10000;
|
|
|
|
/// Version number of this crate.
|
|
pub const VERSION: &str = env!("CARGO_PKG_VERSION");
|