Merge pull request #43 from farcaller/fix-missing-lang-items

A hack to make the code compile again

Author: farcaller

src/hal/isr.rs

@@ -27,3 +27,5 @@ extern crate core;
 
 #[cfg(mcu_lpc17xx)]
 #[path="lpc17xx/isr.rs"] pub mod isr_lpc17xx;
+
+#[path="../lib/lang_items.rs"] mod lang_items;

src/lib/lang_items.rs

@@ -0,0 +1,24 @@
+// Zinc, the bare metal stack for rust.
+// Copyright 2014 Vladimir "farcaller" Pouzanov <farcaller@gmail.com>
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#[lang="stack_exhausted"]
+#[no_split_stack]
+extern fn stack_exhausted() {}
+#[lang="eh_personality"]
+#[no_split_stack]
+extern fn eh_personality() {}
+#[lang="begin_unwind"]
+#[no_split_stack]
+extern fn begin_unwind() {}

src/lib/mod.rs

@@ -19,3 +19,5 @@ pub mod strconv;
 pub mod volatile_cell;
 pub mod shared;
 pub mod queue;
+
+mod lang_items;

support/rake.rb

@@ -81,6 +81,10 @@ def compile_rust(n, h)
        "#{do_lto ? '-Z lto' : ''} #{crate_type} #{emit} " +
        "#{search_paths} #{codegen} " +
        "#{outflags} #{ignore_warnings} #{rust_src}"
+    if File.extname(t.name) == '.o'
+      sh "#{:strip.in_toolchain} -N rust_stack_exhausted -N rust_begin_unwind " +
+         "-N rust_eh_personality #{t.name}"
+    end
   end
 end