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stack pointer: use constants & add a comment

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Brian Carroll 2021-11-10 09:20:31 +00:00
parent d4a741d483
commit 51b6076322
1 changed files with 4 additions and 4 deletions
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8
compiler/gen_wasm/src/backend.rs
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@ -24,7 +24,7 @@ use crate::wasm_module::{
}; };
use crate::{ use crate::{
copy_memory, CopyMemoryConfig, Env, BUILTINS_IMPORT_MODULE_NAME, MEMORY_NAME, PTR_TYPE, copy_memory, CopyMemoryConfig, Env, BUILTINS_IMPORT_MODULE_NAME, MEMORY_NAME, PTR_TYPE,
STACK_POINTER_NAME, STACK_POINTER_GLOBAL_ID, STACK_POINTER_NAME,
}; };
/// The memory address where the constants data will be loaded during module instantiation. /// The memory address where the constants data will be loaded during module instantiation.
@ -84,12 +84,12 @@ impl<'a> WasmBackend<'a> {
exports.push(Export { exports.push(Export {
name: STACK_POINTER_NAME.to_string(), name: STACK_POINTER_NAME.to_string(),
ty: ExportType::Global, ty: ExportType::Global,
index: 0, index: STACK_POINTER_GLOBAL_ID,
}); });
linker_symbols.push(SymInfo::Global(WasmObjectSymbol::Defined { linker_symbols.push(SymInfo::Global(WasmObjectSymbol::Defined {
flags: WASM_SYM_BINDING_WEAK, flags: WASM_SYM_BINDING_WEAK, // TODO: this works but means external .o files decide how much stack we have!
index: 0, index: STACK_POINTER_GLOBAL_ID,
name: STACK_POINTER_NAME.to_string(), name: STACK_POINTER_NAME.to_string(),
})); }));