New upstream version 1.40.0+dfsg1

[rustc.git] / src / librustc_codegen_ssa / lib.rs

diff --git a/src/librustc_codegen_ssa/lib.rs b/src/librustc_codegen_ssa/lib.rs
index 1708d7235b45b1d56badb6b3d7288d32b2bca6f4..dd75883f97debb239d52649888fb1535dd8003ed 100644 (file)
--- a/src/librustc_codegen_ssa/lib.rs
+++ b/src/librustc_codegen_ssa/lib.rs
@@ -10,7 +10,6 @@
 #![feature(in_band_lifetimes)]
 #![feature(nll)]
 #![feature(trusted_len)]
-#![feature(mem_take)]
 #![feature(associated_type_bounds)]
 
 #![recursion_limit="256"]
@@ -21,18 +20,19 @@
 
 #[macro_use] extern crate log;
 #[macro_use] extern crate rustc;
-#[macro_use] extern crate rustc_data_structures;
 #[macro_use] extern crate syntax;
 
-use std::path::PathBuf;
+use std::path::{Path, PathBuf};
 use rustc::dep_graph::WorkProduct;
-use rustc::session::config::{OutputFilenames, OutputType};
+use rustc::session::config::{OutputFilenames, OutputType, RUST_CGU_EXT};
 use rustc::middle::lang_items::LangItem;
 use rustc::hir::def_id::CrateNum;
+use rustc::ty::query::Providers;
 use rustc_data_structures::fx::{FxHashMap, FxHashSet};
 use rustc_data_structures::sync::Lrc;
 use rustc_data_structures::svh::Svh;
 use rustc::middle::cstore::{LibSource, CrateSource, NativeLibrary};
+use rustc::middle::dependency_format::Dependencies;
 use syntax_pos::symbol::Symbol;
 
 mod error_codes;
@@ -42,7 +42,6 @@ pub mod traits;
 pub mod mir;
 pub mod debuginfo;
 pub mod base;
-pub mod callee;
 pub mod glue;
 pub mod meth;
 pub mod mono_item;
@@ -63,6 +62,7 @@ pub struct ModuleCodegen<M> {
 pub const METADATA_FILENAME: &str = "rust.metadata.bin";
 pub const RLIB_BYTECODE_EXTENSION: &str = "bc.z";
 
+
 impl<M> ModuleCodegen<M> {
     pub fn into_compiled_module(self,
                             emit_obj: bool,
@@ -142,6 +142,7 @@ pub struct CrateInfo {
     pub used_crates_dynamic: Vec<(CrateNum, LibSource)>,
     pub lang_item_to_crate: FxHashMap<LangItem, CrateNum>,
     pub missing_lang_items: FxHashMap<CrateNum, Vec<LangItem>>,
+    pub dependency_formats: Lrc<Dependencies>,
 }
 
 
@@ -156,3 +157,32 @@ pub struct CodegenResults {
     pub linker_info: back::linker::LinkerInfo,
     pub crate_info: CrateInfo,
 }
+
+pub fn provide(providers: &mut Providers<'_>) {
+    crate::back::symbol_export::provide(providers);
+    crate::base::provide_both(providers);
+}
+
+pub fn provide_extern(providers: &mut Providers<'_>) {
+    crate::back::symbol_export::provide_extern(providers);
+    crate::base::provide_both(providers);
+}
+
+/// Checks if the given filename ends with the `.rcgu.o` extension that `rustc`
+/// uses for the object files it generates.
+pub fn looks_like_rust_object_file(filename: &str) -> bool {
+    let path = Path::new(filename);
+    let ext = path.extension().and_then(|s| s.to_str());
+    if ext != Some(OutputType::Object.extension()) {
+        // The file name does not end with ".o", so it can't be an object file.
+        return false
+    }
+
+    // Strip the ".o" at the end
+    let ext2 = path.file_stem()
+        .and_then(|s| Path::new(s).extension())
+        .and_then(|s| s.to_str());
+
+    // Check if the "inner" extension
+    ext2 == Some(RUST_CGU_EXT)
+}