49 lines
1.9 KiB
Rust
49 lines
1.9 KiB
Rust
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pub trait Product {
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fn add_rustc_section(&mut self, symbol_name: String, data: Vec<u8>, is_like_osx: bool);
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}
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impl Product for faerie::Artifact {
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fn add_rustc_section(&mut self, symbol_name: String, data: Vec<u8>, is_like_osx: bool) {
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self
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.declare(".rustc", faerie::Decl::section(faerie::SectionKind::Data))
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.unwrap();
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self
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.define_with_symbols(".rustc", data, {
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let mut map = std::collections::BTreeMap::new();
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// FIXME implement faerie elf backend section custom symbols
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// For MachO this is necessary to prevent the linker from throwing away the .rustc section,
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// but for ELF it isn't.
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if is_like_osx {
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map.insert(
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symbol_name,
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0,
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);
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}
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map
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})
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.unwrap();
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}
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}
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impl Product for object::write::Object {
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fn add_rustc_section(&mut self, symbol_name: String, data: Vec<u8>, is_like_osx: bool) {
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let segment = self.segment_name(object::write::StandardSegment::Data).to_vec();
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let section_id = self.add_section(segment, b".rustc".to_vec(), object::SectionKind::Data);
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let offset = self.append_section_data(section_id, &data, 1);
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// FIXME implement faerie elf backend section custom symbols
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// For MachO this is necessary to prevent the linker from throwing away the .rustc section,
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// but for ELF it isn't.
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if is_like_osx {
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self.add_symbol(object::write::Symbol {
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name: symbol_name.into_bytes(),
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value: offset,
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size: data.len() as u64,
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kind: object::SymbolKind::Data,
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scope: object::SymbolScope::Compilation,
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weak: false,
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section: Some(section_id),
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});
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}
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}
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}
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