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Avoid a temporary file when processing macOS fat archives #105221

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merged 2 commits into from
Dec 14, 2022
Merged

Avoid a temporary file when processing macOS fat archives #105221

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047c7cc
Remove macOS fat archive support from LlvmArchiveBuilder
alex Dec 3, 2022
bd8e476
Avoid a temporary file when processing macOS fat archives
alex Dec 3, 2022
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14 changes: 4 additions & 10 deletions compiler/rustc_codegen_llvm/src/back/archive.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -15,8 +15,8 @@ use crate::errors::{
use crate::llvm::archive_ro::{ArchiveRO, Child};
use crate::llvm::{self, ArchiveKind, LLVMMachineType, LLVMRustCOFFShortExport};
use rustc_codegen_ssa::back::archive::{
get_native_object_symbols, try_extract_macho_fat_archive, ArArchiveBuilder,
ArchiveBuildFailure, ArchiveBuilder, ArchiveBuilderBuilder, UnknownArchiveKind,
get_native_object_symbols, ArArchiveBuilder, ArchiveBuildFailure, ArchiveBuilder,
ArchiveBuilderBuilder, UnknownArchiveKind,
};

use rustc_session::cstore::DllImport;
Expand Down Expand Up @@ -66,21 +66,15 @@ impl<'a> ArchiveBuilder<'a> for LlvmArchiveBuilder<'a> {
archive: &Path,
skip: Box<dyn FnMut(&str) -> bool + 'static>,
) -> io::Result<()> {
let mut archive = archive.to_path_buf();
if self.sess.target.llvm_target.contains("-apple-macosx") {
if let Some(new_archive) = try_extract_macho_fat_archive(&self.sess, &archive)? {
archive = new_archive
}
}
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Maybe we should keep this for now in case we need to revert back from the rust rewrite to the original version on macOS due to a bug in the rust rewrite?

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The LlvmArchiveWriter doesn't have a clean place to add this -- it doesn't track file_range, it just has a path.

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I see. Would you mind waiting a week or so to make sure no issues pop up? r=me after that.

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yes, that's fine

let archive_ro = match ArchiveRO::open(&archive) {
let archive_ro = match ArchiveRO::open(archive) {
Ok(ar) => ar,
Err(e) => return Err(io::Error::new(io::ErrorKind::Other, e)),
};
if self.additions.iter().any(|ar| ar.path() == archive) {
return Ok(());
}
self.additions.push(Addition::Archive {
path: archive,
path: archive.to_path_buf(),
archive: archive_ro,
skip: Box::new(skip),
});
Expand Down