60 lines
1.8 KiB
Rust
60 lines
1.8 KiB
Rust
//! Data structures to provide transformation of the source
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// addresses of a WebAssembly module into the native code.
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use alloc::vec::Vec;
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use cranelift_codegen::ir;
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use cranelift_entity::PrimaryMap;
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use cranelift_wasm::DefinedFuncIndex;
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use serde::{Deserialize, Serialize};
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/// Single source location to generated address mapping.
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#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq)]
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pub struct InstructionAddressMap {
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/// Original source location.
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pub srcloc: ir::SourceLoc,
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/// Generated instructions offset.
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pub code_offset: usize,
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/// Generated instructions length.
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pub code_len: usize,
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}
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/// Function and its instructions addresses mappings.
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#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq)]
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pub struct FunctionAddressMap {
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/// Instructions maps.
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/// The array is sorted by the InstructionAddressMap::code_offset field.
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pub instructions: Vec<InstructionAddressMap>,
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/// Function start source location (normally declaration).
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pub start_srcloc: ir::SourceLoc,
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/// Function end source location.
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pub end_srcloc: ir::SourceLoc,
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/// Generated function body offset if applicable, otherwise 0.
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pub body_offset: usize,
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/// Generated function body length.
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pub body_len: usize,
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}
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/// Module functions addresses mappings.
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pub type ModuleAddressMap = PrimaryMap<DefinedFuncIndex, FunctionAddressMap>;
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/// Value ranges for functions.
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pub type ValueLabelsRanges = PrimaryMap<DefinedFuncIndex, cranelift_codegen::ValueLabelsRanges>;
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/// Stack slots for functions.
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pub type StackSlots = PrimaryMap<DefinedFuncIndex, ir::StackSlots>;
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/// Module `vmctx` related info.
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pub struct ModuleVmctxInfo {
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/// The memory definition offset in the VMContext structure.
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pub memory_offset: i64,
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/// The functions stack slots.
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pub stack_slots: StackSlots,
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}
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