Merge branch 'master' into master

third_party/lang-items/src/lib.rs

@@ -7,3 +7,10 @@ mod allocator;
 mod panic_handler;
 #[cfg(not(feature = "std"))]
 mod util;
+
+#[cfg(feature = "std")]
+#[no_mangle]
+unsafe fn libtock_alloc_init(_app_heap_start: usize, _app_heap_size: usize) {
+    // Stub so that the symbol is present.
+    unimplemented!()
+}

third_party/libtock-drivers/src/console.rs

@@ -17,7 +17,7 @@ mod allow_nr {
     pub const SHARE_BUFFER: usize = 1;
 }
 
-const BUFFER_SIZE: usize = 1024;
+pub const BUFFER_SIZE: usize = 1024;
 
 pub struct Console {
     allow_buffer: [u8; BUFFER_SIZE],
@@ -70,11 +70,13 @@ impl Console {
         // Clear the buffer even in case of error, to avoid an infinite loop.
         self.count_pending = 0;
 
-        let result = syscalls::allow(
-            DRIVER_NUMBER,
-            allow_nr::SHARE_BUFFER,
-            &mut self.allow_buffer[..count],
-        );
+        Console::write_unbuffered(&mut self.allow_buffer[..count]);
+    }
+
+    pub fn write_unbuffered(buf: &mut [u8]) {
+        let count = buf.len();
+
+        let result = syscalls::allow(DRIVER_NUMBER, allow_nr::SHARE_BUFFER, buf);
         if result.is_err() {
             return;
         }