38 lines
1.1 KiB
Rust
38 lines
1.1 KiB
Rust
use anyhow::Result;
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use object::write::{Object, StandardSection, Symbol, SymbolSection};
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use object::{SymbolFlags, SymbolKind, SymbolScope};
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use wasmtime_environ::DataInitializer;
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/// Declares data segment symbol
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pub fn declare_data_segment(
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obj: &mut Object,
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_data_initaliazer: &DataInitializer,
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index: usize,
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) -> Result<()> {
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let name = format!("_memory_{}", index);
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let _symbol_id = obj.add_symbol(Symbol {
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name: name.as_bytes().to_vec(),
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value: 0,
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size: 0,
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kind: SymbolKind::Data,
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scope: SymbolScope::Linkage,
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weak: false,
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section: SymbolSection::Undefined,
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flags: SymbolFlags::None,
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});
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Ok(())
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}
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/// Emit segment data and initialization location
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pub fn emit_data_segment(
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obj: &mut Object,
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data_initaliazer: &DataInitializer,
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index: usize,
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) -> Result<()> {
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let name = format!("_memory_{}", index);
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let symbol_id = obj.symbol_id(name.as_bytes()).unwrap();
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let section_id = obj.section_id(StandardSection::Data);
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obj.add_symbol_data(symbol_id, section_id, data_initaliazer.data, 1);
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Ok(())
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}
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