Sync from rust a5560a6

Author: bjorn3

src/allocator.rs

@@ -13,7 +13,7 @@ pub(crate) fn codegen(
     module: &mut impl Module,
     unwind_context: &mut UnwindContext,
 ) -> bool {
-    let any_dynamic_crate = tcx.dependency_formats(LOCAL_CRATE).iter().any(|(_, list)| {
+    let any_dynamic_crate = tcx.dependency_formats(()).iter().any(|(_, list)| {
         use rustc_middle::middle::dependency_format::Linkage;
         list.iter().any(|&linkage| linkage == Linkage::Dynamic)
     });

src/common.rs

@@ -334,7 +334,9 @@ impl<'tcx> FunctionCx<'_, '_, 'tcx> {
         let topmost = span.ctxt().outer_expn().expansion_cause().unwrap_or(span);
         let caller = self.tcx.sess.source_map().lookup_char_pos(topmost.lo());
         let const_loc = self.tcx.const_caller_location((
-            rustc_span::symbol::Symbol::intern(&caller.file.name.to_string()),
+            rustc_span::symbol::Symbol::intern(
+                &caller.file.name.prefer_remapped().to_string_lossy(),
+            ),
             caller.line as u32,
             caller.col_display as u32 + 1,
         ));

src/debuginfo/line_info.rs

@@ -66,7 +66,7 @@ fn line_program_add_file(
 ) -> FileId {
     match &file.name {
         FileName::Real(path) => {
-            let (dir_path, file_name) = split_path_dir_and_file(path.stable_name());
+            let (dir_path, file_name) = split_path_dir_and_file(path.remapped_path_if_available());
             let dir_name = osstr_as_utf8_bytes(dir_path.as_os_str());
             let file_name = osstr_as_utf8_bytes(file_name);
 
@@ -87,7 +87,7 @@ fn line_program_add_file(
         filename => {
             let dir_id = line_program.default_directory();
             let dummy_file_name = LineString::new(
-                filename.to_string().into_bytes(),
+                filename.prefer_remapped().to_string().into_bytes(),
                 line_program.encoding(),
                 line_strings,
             );

src/debuginfo/mod.rs

@@ -64,7 +64,7 @@ impl<'tcx> DebugContext<'tcx> {
         // FIXME: how to get version when building out of tree?
         // Normally this would use option_env!("CFG_VERSION").
         let producer = format!("cg_clif (rustc {})", "unknown version");
-        let comp_dir = tcx.sess.working_dir.0.to_string_lossy().into_owned();
+        let comp_dir = tcx.sess.working_dir.to_string_lossy(false).into_owned();
         let (name, file_info) = match tcx.sess.local_crate_source_file.clone() {
             Some(path) => {
                 let name = path.to_string_lossy().into_owned();

src/driver/aot.rs

@@ -3,6 +3,7 @@
 
 use std::path::PathBuf;
 
+use rustc_ast::{InlineAsmOptions, InlineAsmTemplatePiece};
 use rustc_codegen_ssa::back::linker::LinkerInfo;
 use rustc_codegen_ssa::{CodegenResults, CompiledModule, CrateInfo, ModuleKind};
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
@@ -41,7 +42,7 @@ fn emit_module(
 
     unwind_context.emit(&mut product);
 
-    let tmp_file = tcx.output_filenames(LOCAL_CRATE).temp_path(OutputType::Object, Some(&name));
+    let tmp_file = tcx.output_filenames(()).temp_path(OutputType::Object, Some(&name));
     let obj = product.object.write().unwrap();
     if let Err(err) = std::fs::write(&tmp_file, obj) {
         tcx.sess.fatal(&format!("error writing object file: {}", err));
@@ -73,7 +74,7 @@ fn reuse_workproduct_for_cgu(
     let work_product = cgu.work_product(tcx);
     if let Some(saved_file) = &work_product.saved_file {
         let obj_out = tcx
-            .output_filenames(LOCAL_CRATE)
+            .output_filenames(())
             .temp_path(OutputType::Object, Some(&cgu.name().as_str()));
         object = Some(obj_out.clone());
         let source_file = rustc_incremental::in_incr_comp_dir(&incr_comp_session_dir, &saved_file);
@@ -125,9 +126,19 @@ fn module_codegen(
             MonoItem::Static(def_id) => crate::constant::codegen_static(tcx, &mut module, def_id),
             MonoItem::GlobalAsm(item_id) => {
                 let item = cx.tcx.hir().item(item_id);
-                if let rustc_hir::ItemKind::GlobalAsm(rustc_hir::GlobalAsm { asm }) = item.kind {
-                    cx.global_asm.push_str(&*asm.as_str());
-                    cx.global_asm.push_str("\n\n");
+                if let rustc_hir::ItemKind::GlobalAsm(asm) = item.kind {
+                    if !asm.options.contains(InlineAsmOptions::ATT_SYNTAX) {
+                        cx.global_asm.push_str("\n.intel_syntax noprefix\n");
+                    } else {
+                        cx.global_asm.push_str("\n.att_syntax\n");
+                    }
+                    for piece in asm.template {
+                        match *piece {
+                            InlineAsmTemplatePiece::String(ref s) => cx.global_asm.push_str(s),
+                            InlineAsmTemplatePiece::Placeholder { .. } => todo!(),
+                        }
+                    }
+                    cx.global_asm.push_str("\n.att_syntax\n\n");
                 } else {
                     bug!("Expected GlobalAsm found {:?}", item);
                 }
@@ -185,7 +196,7 @@ pub(crate) fn run_aot(
     let mut work_products = FxHashMap::default();
 
     let cgus = if tcx.sess.opts.output_types.should_codegen() {
-        tcx.collect_and_partition_mono_items(LOCAL_CRATE).1
+        tcx.collect_and_partition_mono_items(()).1
     } else {
         // If only `--emit metadata` is used, we shouldn't perform any codegen.
         // Also `tcx.collect_and_partition_mono_items` may panic in that case.
@@ -271,7 +282,7 @@ pub(crate) fn run_aot(
                 .to_string();
 
             let tmp_file = tcx
-                .output_filenames(LOCAL_CRATE)
+                .output_filenames(())
                 .temp_path(OutputType::Metadata, Some(&metadata_cgu_name));
 
             let obj = crate::backend::with_object(tcx.sess, &metadata_cgu_name, |object| {
@@ -304,7 +315,7 @@ pub(crate) fn run_aot(
             metadata_module,
             metadata,
             windows_subsystem,
-            linker_info: LinkerInfo::new(tcx),
+            linker_info: LinkerInfo::new(tcx, crate::target_triple(tcx.sess).to_string()),
             crate_info: CrateInfo::new(tcx),
         },
         work_products,
@@ -348,7 +359,7 @@ fn codegen_global_asm(tcx: TyCtxt<'_>, cgu_name: &str, global_asm: &str) {
         .join("\n");
 
     let output_object_file =
-        tcx.output_filenames(LOCAL_CRATE).temp_path(OutputType::Object, Some(cgu_name));
+        tcx.output_filenames(()).temp_path(OutputType::Object, Some(cgu_name));
 
     // Assemble `global_asm`
     let global_asm_object_file = add_file_stem_postfix(output_object_file.clone(), ".asm");

src/driver/jit.rs

@@ -66,7 +66,7 @@ pub(crate) fn run_jit(tcx: TyCtxt<'_>, backend_config: BackendConfig) -> ! {
         matches!(backend_config.codegen_mode, CodegenMode::JitLazy),
     );
 
-    let (_, cgus) = tcx.collect_and_partition_mono_items(LOCAL_CRATE);
+    let (_, cgus) = tcx.collect_and_partition_mono_items(());
     let mono_items = cgus
         .iter()
         .map(|cgu| cgu.items_in_deterministic_order(tcx).into_iter())
@@ -179,7 +179,7 @@ fn load_imported_symbols_for_jit(tcx: TyCtxt<'_>) -> Vec<(String, *const u8)> {
     let mut dylib_paths = Vec::new();
 
     let crate_info = CrateInfo::new(tcx);
-    let formats = tcx.dependency_formats(LOCAL_CRATE);
+    let formats = tcx.dependency_formats(());
     let data = &formats
         .iter()
         .find(|(crate_type, _data)| *crate_type == rustc_session::config::CrateType::Executable)

src/lib.rs

@@ -165,7 +165,7 @@ impl CodegenBackend for CraneliftCodegenBackend {
     }
 
     fn metadata_loader(&self) -> Box<dyn MetadataLoader + Sync> {
-        Box::new(crate::metadata::CraneliftMetadataLoader)
+        Box::new(rustc_codegen_ssa::back::metadata::DefaultMetadataLoader)
     }
 
     fn provide(&self, _providers: &mut Providers) {}
@@ -218,13 +218,11 @@ impl CodegenBackend for CraneliftCodegenBackend {
     ) -> Result<(), ErrorReported> {
         use rustc_codegen_ssa::back::link::link_binary;
 
-        let target_cpu = crate::target_triple(sess).to_string();
         link_binary::<crate::archive::ArArchiveBuilder<'_>>(
             sess,
             &codegen_results,
             outputs,
             &codegen_results.crate_name.as_str(),
-            &target_cpu,
         );
 
         Ok(())

src/main_shim.rs

@@ -16,7 +16,7 @@ pub(crate) fn maybe_create_entry_wrapper(
     is_jit: bool,
     is_primary_cgu: bool,
 ) {
-    let (main_def_id, is_main_fn) = match tcx.entry_fn(LOCAL_CRATE) {
+    let (main_def_id, is_main_fn) = match tcx.entry_fn(()) {
         Some((def_id, entry_ty)) => (
             def_id,
             match entry_ty {

src/metadata.rs

@@ -1,73 +1,9 @@
-//! Reading and writing of the rustc metadata for rlibs and dylibs
+//! Writing of the rustc metadata for dylibs
 
-use std::fs::File;
-use std::path::Path;
-
-use rustc_codegen_ssa::METADATA_FILENAME;
-use rustc_data_structures::memmap::Mmap;
-use rustc_data_structures::owning_ref::OwningRef;
-use rustc_data_structures::rustc_erase_owner;
-use rustc_data_structures::sync::MetadataRef;
-use rustc_middle::middle::cstore::MetadataLoader;
 use rustc_middle::ty::TyCtxt;
-use rustc_target::spec::Target;
 
 use crate::backend::WriteMetadata;
 
-/// The metadata loader used by cg_clif.
-///
-/// The metadata is stored in the same format as cg_llvm.
-///
-/// # Metadata location
-///
-/// <dl>
-/// <dt>rlib</dt>
-/// <dd>The metadata can be found in the `lib.rmeta` file inside of the ar archive.</dd>
-/// <dt>dylib</dt>
-/// <dd>The metadata can be found in the `.rustc` section of the shared library.</dd>
-/// </dl>
-pub(crate) struct CraneliftMetadataLoader;
-
-fn load_metadata_with(
-    path: &Path,
-    f: impl for<'a> FnOnce(&'a [u8]) -> Result<&'a [u8], String>,
-) -> Result<MetadataRef, String> {
-    let file = File::open(path).map_err(|e| format!("{:?}", e))?;
-    let data = unsafe { Mmap::map(file) }.map_err(|e| format!("{:?}", e))?;
-    let metadata = OwningRef::new(data).try_map(f)?;
-    return Ok(rustc_erase_owner!(metadata.map_owner_box()));
-}
-
-impl MetadataLoader for CraneliftMetadataLoader {
-    fn get_rlib_metadata(&self, _target: &Target, path: &Path) -> Result<MetadataRef, String> {
-        load_metadata_with(path, |data| {
-            let archive = object::read::archive::ArchiveFile::parse(&*data)
-                .map_err(|e| format!("{:?}", e))?;
-
-            for entry_result in archive.members() {
-                let entry = entry_result.map_err(|e| format!("{:?}", e))?;
-                if entry.name() == METADATA_FILENAME.as_bytes() {
-                    return Ok(entry.data());
-                }
-            }
-
-            Err("couldn't find metadata entry".to_string())
-        })
-    }
-
-    fn get_dylib_metadata(&self, _target: &Target, path: &Path) -> Result<MetadataRef, String> {
-        use object::{Object, ObjectSection};
-
-        load_metadata_with(path, |data| {
-            let file = object::File::parse(&data).map_err(|e| format!("parse: {:?}", e))?;
-            file.section_by_name(".rustc")
-                .ok_or("no .rustc section")?
-                .data()
-                .map_err(|e| format!("failed to read .rustc section: {:?}", e))
-        })
-    }
-}
-
 // Adapted from https://github.com/rust-lang/rust/blob/da573206f87b5510de4b0ee1a9c044127e409bd3/src/librustc_codegen_llvm/base.rs#L47-L112
 pub(crate) fn write_metadata<O: WriteMetadata>(tcx: TyCtxt<'_>, object: &mut O) {
     use snap::write::FrameEncoder;

src/pretty_clif.rs

@@ -214,7 +214,7 @@ pub(crate) fn write_ir_file(
         return;
     }
 
-    let clif_output_dir = tcx.output_filenames(LOCAL_CRATE).with_extension("clif");
+    let clif_output_dir = tcx.output_filenames(()).with_extension("clif");
 
     match std::fs::create_dir(&clif_output_dir) {
         Ok(()) => {}