Add the PNaCl/JS targets to the backend.

src/librustc_back/target/le32_unknown_nacl.rs

@@ -0,0 +1,41 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use super::{Target, TargetOptions};
+
+pub fn target() -> Target {
+    let opts = TargetOptions {
+        linker: "pnacl-clang".to_string(),
+        ar: "pnacl-ar".to_string(),
+
+        pre_link_args: vec!("--pnacl-exceptions=sjlj".to_string(),
+                            "--target=le32-unknown-nacl".to_string(),
+                            "-Wl,--start-group".to_string()),
+        post_link_args: vec!("-Wl,--end-group".to_string()),
+        dynamic_linking: false,
+        executables: true,
+        exe_suffix: ".pexe".to_string(),
+        no_compiler_rt: false,
+        linker_is_gnu: true,
+        allow_asm: false,
+        archive_format: "gnu".to_string(),
+        .. Default::default()
+    };
+    Target {
+        llvm_target: "le32-unknown-nacl".to_string(),
+        target_endian: "little".to_string(),
+        target_pointer_width: "32".to_string(),
+        target_os: "nacl".to_string(),
+        target_env: "newlib".to_string(),
+        target_vendor: "unknown".to_string(),
+        arch: "le32".to_string(),
+        options: opts,
+    }
+}

src/librustc_back/target/mod.rs

@@ -426,7 +426,9 @@ impl Target {
             i686_pc_windows_gnu,
 
             x86_64_pc_windows_msvc,
-            i686_pc_windows_msvc
+            i686_pc_windows_msvc,
+
+            le32_unknown_nacl
         );
 
 

src/librustc_trans/trans/context.rs

@@ -838,7 +838,6 @@ fn declare_intrinsic(ccx: &CrateContext, key: &str) -> Option<ValueRef> {
 
     ifn!("llvm.trap", fn() -> void);
     ifn!("llvm.debugtrap", fn() -> void);
-    ifn!("llvm.frameaddress", fn(t_i32) -> i8p);
 
     ifn!("llvm.powi.f32", fn(t_f32, t_i32) -> t_f32);
     ifn!("llvm.powi.f64", fn(t_f64, t_i32) -> t_f64);