Fix test failure

rust-lang/rust#40409 requires a __rust_alloc_zeroed function.
kmindg · May 24, 2017 · f916af3 · f916af3
1 parent aaf071d
commit f916af3
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/src/lib.rs b/src/lib.rs
@@ -33,6 +33,8 @@ const MIN_ALIGN: usize = 8;
  target_arch = "powerpc64le")))]
 const MIN_ALIGN: usize = 16;
 
+const MALLOCX_ZERO: c_int = 0x40;
+
 // MALLOCX_ALIGN(a) macro
 fn mallocx_align(a: usize) -> c_int {
  a.trailing_zeros() as c_int
@@ -52,6 +54,12 @@ pub extern "C" fn __rust_allocate(size: usize, align: usize) -> *mut u8 {
  unsafe { ffi::mallocx(size as size_t, flags) as *mut u8 }
 }
 
+#[no_mangle]
+pub extern "C" fn __rust_allocate_zeroed(size: usize, align: usize) -> *mut u8 {
+ let flags = align_to_flags(align) | MALLOCX_ZERO;
+ unsafe { ffi::mallocx(size as size_t, flags) as *mut u8 }
+}
+
 #[no_mangle]
 pub extern "C" fn __rust_reallocate(ptr: *mut u8,
  _old_size: usize,