58 lines
2.1 KiB
Rust
58 lines
2.1 KiB
Rust
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use std::path::Path;
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use std::fs::File;
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use rustc_data_structures::owning_ref::{self, OwningRef};
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use rustc::middle::cstore::MetadataLoader;
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pub struct CraneliftMetadataLoader;
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impl MetadataLoader for CraneliftMetadataLoader {
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fn get_rlib_metadata(
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&self,
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_target: &::rustc_target::spec::Target,
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path: &Path,
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) -> Result<owning_ref::ErasedBoxRef<[u8]>, String> {
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let mut archive = ar::Archive::new(File::open(path).map_err(|e| format!("{:?}", e))?);
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// Iterate over all entries in the archive:
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while let Some(entry_result) = archive.next_entry() {
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let mut entry = entry_result.map_err(|e| format!("{:?}", e))?;
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if entry.header().identifier().starts_with(b".rustc.clif_metadata") {
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let mut buf = Vec::new();
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::std::io::copy(&mut entry, &mut buf).map_err(|e| format!("{:?}", e))?;
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let buf: OwningRef<Vec<u8>, [u8]> = OwningRef::new(buf).into();
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return Ok(rustc_erase_owner!(buf.map_owner_box()));
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}
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}
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Err("couldn't find metadata entry".to_string())
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//self.get_dylib_metadata(target, path)
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}
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fn get_dylib_metadata(
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&self,
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_target: &::rustc_target::spec::Target,
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_path: &Path,
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) -> Result<owning_ref::ErasedBoxRef<[u8]>, String> {
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//use goblin::Object;
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//let buffer = ::std::fs::read(path).map_err(|e|format!("{:?}", e))?;
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/*match Object::parse(&buffer).map_err(|e|format!("{:?}", e))? {
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Object::Elf(elf) => {
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println!("elf: {:#?}", &elf);
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},
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Object::PE(pe) => {
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println!("pe: {:#?}", &pe);
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},
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Object::Mach(mach) => {
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println!("mach: {:#?}", &mach);
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},
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Object::Archive(archive) => {
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return Err(format!("archive: {:#?}", &archive));
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},
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Object::Unknown(magic) => {
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return Err(format!("unknown magic: {:#x}", magic))
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}
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}*/
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Err("dylib metadata loading is not yet supported".to_string())
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}
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}
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