Add no_mangle to lang items. (#46)

Author: pepyakin

README.md

@@ -65,7 +65,8 @@ static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
 // This translates into an `unreachable` instruction that will
 // raise a `trap` the WebAssembly execution if we panic at runtime.
 #[panic_implementation]
-fn panic(_info: &::core::panic::PanicInfo) -> ! {
+#[no_mangle]
+pub fn panic(_info: &::core::panic::PanicInfo) -> ! {
     unsafe {
         ::core::intrinsics::abort();
     }
@@ -74,7 +75,8 @@ fn panic(_info: &::core::panic::PanicInfo) -> ! {
 // Need to provide a tiny `oom` lang-item implementation for
 // `#![no_std]`.
 #[lang = "oom"]
-extern "C" fn oom() -> ! {
+#[no_mangle]
+pub extern "C" fn oom() -> ! {
     unsafe {
         ::core::intrinsics::abort();
     }

example/src/lib.rs

@@ -19,7 +19,8 @@ static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
 // This translates into an `unreachable` instruction that will
 // raise a `trap` the WebAssembly execution if we panic at runtime.
 #[panic_implementation]
-fn panic(_info: &::core::panic::PanicInfo) -> ! {
+#[no_mangle]
+pub fn panic(_info: &::core::panic::PanicInfo) -> ! {
     unsafe {
         ::core::intrinsics::abort();
     }
@@ -28,14 +29,16 @@ fn panic(_info: &::core::panic::PanicInfo) -> ! {
 // Need to provide a tiny `oom` lang-item implementation for
 // `#![no_std]`.
 #[lang = "oom"]
-extern "C" fn oom() -> ! {
+#[no_mangle]
+pub extern "C" fn oom() -> ! {
     unsafe {
         ::core::intrinsics::abort();
     }
 }
 
 // Needed for non-wasm targets.
 #[lang = "eh_personality"]
+#[no_mangle]
 pub extern "C" fn eh_personality() {}
 
 // Now, use the allocator via `alloc` types! ///////////////////////////////////

wee_alloc/src/lib.rs

@@ -65,7 +65,8 @@ static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
 // This translates into an `unreachable` instruction that will
 // raise a `trap` the WebAssembly execution if we panic at runtime.
 #[panic_implementation]
-fn panic(_info: &::core::panic::PanicInfo) -> ! {
+#[no_mangle]
+pub fn panic(_info: &::core::panic::PanicInfo) -> ! {
     unsafe {
         ::core::intrinsics::abort();
     }
@@ -74,7 +75,8 @@ fn panic(_info: &::core::panic::PanicInfo) -> ! {
 // Need to provide a tiny `oom` lang-item implementation for
 // `#![no_std]`.
 #[lang = "oom"]
-extern "C" fn oom() -> ! {
+#[no_mangle]
+pub extern "C" fn oom() -> ! {
     unsafe {
         ::core::intrinsics::abort();
     }