diff options
Diffstat (limited to 'compiler/rustc_codegen_ssa/src/back')
| -rw-r--r-- | compiler/rustc_codegen_ssa/src/back/metadata.rs | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/compiler/rustc_codegen_ssa/src/back/metadata.rs b/compiler/rustc_codegen_ssa/src/back/metadata.rs index e8b8665e39d..c4bb51edade 100644 --- a/compiler/rustc_codegen_ssa/src/back/metadata.rs +++ b/compiler/rustc_codegen_ssa/src/back/metadata.rs @@ -10,8 +10,6 @@ use object::{ ObjectSymbol, SectionFlags, SectionKind, SymbolFlags, SymbolKind, SymbolScope, }; -use snap::write::FrameEncoder; - use rustc_data_structures::memmap::Mmap; use rustc_data_structures::owned_slice::{try_slice_owned, OwnedSlice}; use rustc_metadata::fs::METADATA_FILENAME; @@ -481,19 +479,15 @@ pub fn create_compressed_metadata_file( metadata: &EncodedMetadata, symbol_name: &str, ) -> Vec<u8> { - let mut compressed = rustc_metadata::METADATA_HEADER.to_vec(); - // Our length will be backfilled once we're done writing - compressed.write_all(&[0; 4]).unwrap(); - FrameEncoder::new(&mut compressed).write_all(metadata.raw_data()).unwrap(); - let meta_len = rustc_metadata::METADATA_HEADER.len(); - let data_len = (compressed.len() - meta_len - 4) as u32; - compressed[meta_len..meta_len + 4].copy_from_slice(&data_len.to_be_bytes()); + let mut packed_metadata = rustc_metadata::METADATA_HEADER.to_vec(); + packed_metadata.write_all(&(metadata.raw_data().len() as u32).to_be_bytes()).unwrap(); + packed_metadata.extend(metadata.raw_data()); let Some(mut file) = create_object_file(sess) else { - return compressed.to_vec(); + return packed_metadata.to_vec(); }; if file.format() == BinaryFormat::Xcoff { - return create_compressed_metadata_file_for_xcoff(file, &compressed, symbol_name); + return create_compressed_metadata_file_for_xcoff(file, &packed_metadata, symbol_name); } let section = file.add_section( file.segment_name(StandardSegment::Data).to_vec(), @@ -507,14 +501,14 @@ pub fn create_compressed_metadata_file( } _ => {} }; - let offset = file.append_section_data(section, &compressed, 1); + let offset = file.append_section_data(section, &packed_metadata, 1); // For MachO and probably PE this is necessary to prevent the linker from throwing away the // .rustc section. For ELF this isn't necessary, but it also doesn't harm. file.add_symbol(Symbol { name: symbol_name.as_bytes().to_vec(), value: offset, - size: compressed.len() as u64, + size: packed_metadata.len() as u64, kind: SymbolKind::Data, scope: SymbolScope::Dynamic, weak: false, |
