Move definition of ModuleMemoryOffset (#3228)

This was historically defined in `wasmtime-environ` but it's only used
in `wasmtime-cranelift`, so this commit moves the definition to the
`debug` module where it's primarily used.

crates/cranelift/src/compiler.rs

@@ -1,3 +1,4 @@
+use crate::debug::ModuleMemoryOffset;
 use crate::func_environ::{get_func_name, FuncEnvironment};
 use crate::obj::{ObjectBuilder, ObjectBuilderTarget};
 use crate::{
@@ -25,8 +26,8 @@ use std::mem;
 use std::sync::Mutex;
 use wasmtime_environ::{
     CompileError, FilePos, FlagValue, FunctionAddressMap, FunctionBodyData, FunctionInfo,
-    InstructionAddressMap, Module, ModuleMemoryOffset, ModuleTranslation, StackMapInformation,
-    TrapCode, TrapInformation, Tunables, TypeTables, VMOffsets,
+    InstructionAddressMap, Module, ModuleTranslation, StackMapInformation, TrapCode,
+    TrapInformation, Tunables, TypeTables, VMOffsets,
 };
 
 /// A compiler that compiles a WebAssembly module with Compiler, translating

crates/cranelift/src/debug.rs

@@ -2,6 +2,17 @@
 
 #![allow(clippy::cast_ptr_alignment)]
 
+/// Memory definition offset in the VMContext structure.
+#[derive(Debug, Clone)]
+pub enum ModuleMemoryOffset {
+    /// Not available.
+    None,
+    /// Offset to the defined memory.
+    Defined(u32),
+    /// Offset to the imported memory.
+    Imported(u32),
+}
+
 pub use write_debuginfo::{emit_dwarf, DwarfSection, DwarfSectionRelocTarget};
 
 mod gc;

crates/cranelift/src/debug/transform/expression.rs

@@ -1,4 +1,5 @@
 use super::address_transform::AddressTransform;
+use crate::debug::ModuleMemoryOffset;
 use anyhow::{Context, Error, Result};
 use cranelift_codegen::ir::{LabelValueLoc, StackSlots, ValueLabel, ValueLoc};
 use cranelift_codegen::isa::TargetIsa;
@@ -10,7 +11,7 @@ use std::cmp::PartialEq;
 use std::collections::{HashMap, HashSet};
 use std::hash::{Hash, Hasher};
 use std::rc::Rc;
-use wasmtime_environ::{DefinedFuncIndex, EntityRef, ModuleMemoryOffset};
+use wasmtime_environ::{DefinedFuncIndex, EntityRef};
 
 #[derive(Debug)]
 pub struct FunctionFrameInfo<'a> {
@@ -1267,8 +1268,9 @@ mod tests {
     #[test]
     fn test_debug_value_range_builder() {
         use super::ValueLabelRangesBuilder;
+        use crate::debug::ModuleMemoryOffset;
         use cranelift_codegen::ir::StackSlots;
-        use wasmtime_environ::{DefinedFuncIndex, EntityRef, ModuleMemoryOffset};
+        use wasmtime_environ::{DefinedFuncIndex, EntityRef};
 
         let addr_tr = create_mock_address_transform();
         let stack_slots = StackSlots::new();

crates/cranelift/src/debug/transform/mod.rs

@@ -2,6 +2,7 @@ use self::refs::DebugInfoRefsMap;
 use self::simulate::generate_simulated_dwarf;
 use self::unit::clone_unit;
 use crate::debug::gc::build_dependencies;
+use crate::debug::ModuleMemoryOffset;
 use crate::CompiledFunctions;
 use anyhow::Error;
 use cranelift_codegen::isa::TargetIsa;
@@ -11,7 +12,7 @@ use gimli::{
 };
 use std::collections::HashSet;
 use thiserror::Error;
-use wasmtime_environ::{DebugInfoData, ModuleMemoryOffset};
+use wasmtime_environ::DebugInfoData;
 
 pub use address_transform::AddressTransform;
 

crates/cranelift/src/debug/transform/simulate.rs

@@ -1,6 +1,7 @@
 use super::expression::{CompiledExpression, FunctionFrameInfo};
 use super::utils::{add_internal_types, append_vmctx_info, get_function_frame_info};
 use super::AddressTransform;
+use crate::debug::ModuleMemoryOffset;
 use crate::CompiledFunctions;
 use anyhow::{Context, Error};
 use cranelift_codegen::isa::TargetIsa;
@@ -12,7 +13,7 @@ use std::path::PathBuf;
 use std::sync::atomic::{AtomicUsize, Ordering::SeqCst};
 use wasmparser::Type as WasmType;
 use wasmtime_environ::{
-    DebugInfoData, DefinedFuncIndex, EntityRef, FunctionMetadata, ModuleMemoryOffset, WasmFileInfo,
+    DebugInfoData, DefinedFuncIndex, EntityRef, FunctionMetadata, WasmFileInfo,
 };
 
 const PRODUCER_NAME: &str = "wasmtime";

crates/cranelift/src/debug/transform/unit.rs

@@ -6,6 +6,7 @@ use super::range_info_builder::RangeInfoBuilder;
 use super::refs::{PendingDebugInfoRefs, PendingUnitRefs, UnitRefsMap};
 use super::utils::{add_internal_types, append_vmctx_info, get_function_frame_info};
 use super::{DebugInputContext, Reader, TransformError};
+use crate::debug::ModuleMemoryOffset;
 use crate::CompiledFunctions;
 use anyhow::{Context, Error};
 use cranelift_codegen::ir::Endianness;
@@ -13,7 +14,7 @@ use cranelift_codegen::isa::TargetIsa;
 use gimli::write;
 use gimli::{AttributeValue, DebuggingInformationEntry, Unit};
 use std::collections::HashSet;
-use wasmtime_environ::{DefinedFuncIndex, ModuleMemoryOffset};
+use wasmtime_environ::DefinedFuncIndex;
 
 struct InheritedAttr<T> {
     stack: Vec<(usize, T)>,

crates/cranelift/src/debug/transform/utils.rs

@@ -1,10 +1,11 @@
 use super::address_transform::AddressTransform;
 use super::expression::{CompiledExpression, FunctionFrameInfo};
+use crate::debug::ModuleMemoryOffset;
 use crate::CompiledFunctions;
 use anyhow::Error;
 use cranelift_codegen::isa::TargetIsa;
 use gimli::write;
-use wasmtime_environ::{DefinedFuncIndex, ModuleMemoryOffset};
+use wasmtime_environ::DefinedFuncIndex;
 
 /// Adds internal Wasm utility types DIEs such as WebAssemblyPtr and
 /// WasmtimeVMContext.

crates/cranelift/src/debug/write_debuginfo.rs

@@ -1,11 +1,12 @@
 pub use crate::debug::transform::transform_dwarf;
+use crate::debug::ModuleMemoryOffset;
 use crate::CompiledFunctions;
 use cranelift_codegen::ir::Endianness;
 use cranelift_codegen::isa::{unwind::UnwindInfo, TargetIsa};
 use cranelift_entity::EntityRef;
 use gimli::write::{Address, Dwarf, EndianVec, FrameTable, Result, Sections, Writer};
 use gimli::{RunTimeEndian, SectionId};
-use wasmtime_environ::{DebugInfoData, ModuleMemoryOffset};
+use wasmtime_environ::DebugInfoData;
 
 #[allow(missing_docs)]
 pub struct DwarfSection {

crates/environ/src/address_map.rs

@@ -74,14 +74,3 @@ impl Default for FilePos {
         FilePos(u32::MAX)
     }
 }
-
-/// Memory definition offset in the VMContext structure.
-#[derive(Debug, Clone)]
-pub enum ModuleMemoryOffset {
-    /// Not available.
-    None,
-    /// Offset to the defined memory.
-    Defined(u32),
-    /// Offset to the imported memory.
-    Imported(u32),
-}