Move cg_llvm:🔙:linker to cg_utils

src/librustc_codegen_utils/lib.rs

@@ -30,8 +30,10 @@ extern crate flate2;
 #[macro_use]
 extern crate log;
 
+extern crate serialize;
 #[macro_use]
 extern crate rustc;
+extern crate rustc_allocator;
 extern crate rustc_target;
 extern crate rustc_mir;
 extern crate rustc_incremental;
@@ -40,10 +42,16 @@ extern crate syntax_pos;
 #[macro_use] extern crate rustc_data_structures;
 extern crate rustc_metadata_utils;
 
+use std::path::PathBuf;
+
+use rustc::session::Session;
 use rustc::ty::TyCtxt;
 
+pub mod command;
 pub mod link;
+pub mod linker;
 pub mod codegen_backend;
+pub mod symbol_export;
 pub mod symbol_names;
 pub mod symbol_names_test;
 
@@ -61,4 +69,43 @@ pub fn check_for_rustc_errors_attr(tcx: TyCtxt) {
     }
 }
 
+#[derive(Copy, Clone, Debug, PartialEq)]
+pub enum ModuleKind {
+    Regular,
+    Metadata,
+    Allocator,
+}
+
+#[derive(Debug)]
+pub struct CompiledModule {
+    pub name: String,
+    pub kind: ModuleKind,
+    pub object: Option<PathBuf>,
+    pub bytecode: Option<PathBuf>,
+    pub bytecode_compressed: Option<PathBuf>,
+}
+
+pub fn find_library(name: &str, search_paths: &[PathBuf], sess: &Session)
+                    -> PathBuf {
+    // On Windows, static libraries sometimes show up as libfoo.a and other
+    // times show up as foo.lib
+    let oslibname = format!("{}{}{}",
+                            sess.target.target.options.staticlib_prefix,
+                            name,
+                            sess.target.target.options.staticlib_suffix);
+    let unixlibname = format!("lib{}.a", name);
+
+    for path in search_paths {
+        debug!("looking for {} inside {:?}", name, path);
+        let test = path.join(&oslibname);
+        if test.exists() { return test }
+        if oslibname != unixlibname {
+            let test = path.join(&unixlibname);
+            if test.exists() { return test }
+        }
+    }
+    sess.fatal(&format!("could not find native static library `{}`, \
+                         perhaps an -L flag is missing?", name));
+}
+
 __build_diagnostic_array! { librustc_codegen_utils, DIAGNOSTICS }