snapshot of honeycomb-x86

[android-x86/prebuilt.git] / sdk / 12 / renderscript / clang-include / mm_malloc.h

diff --git a/sdk/12/renderscript/clang-include/mm_malloc.h b/sdk/12/renderscript/clang-include/mm_malloc.h
new file mode 100644 (file)
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+++ b/sdk/12/renderscript/clang-include/mm_malloc.h
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+/*===---- mm_malloc.h - Allocating and Freeing Aligned Memory Blocks -------===
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ *===-----------------------------------------------------------------------===
+ */
+
+#ifndef __MM_MALLOC_H
+#define __MM_MALLOC_H
+
+#include <stddef.h>
+
+#ifdef _WIN32
+#include <malloc.h>
+#else
+
+// Forward declare allocation functions to allow this header to parse without
+// any system headers.
+#ifndef __cplusplus
+extern void free(void *ptr);
+extern void *malloc(size_t size) __attribute__((__malloc__));
+extern int posix_memalign(void **memptr, size_t alignment, size_t size);
+#else
+// Some systems (e.g. those with GNU libc) declare some of these functions with
+// an exception specifier. Via an "egregious workaround" in
+// Sema::CheckEquivalentExceptionSpec, Clang accepts the following as valid
+// redeclarations of glibc's declarations.
+extern "C" void free(void *ptr);
+extern "C" void *malloc(size_t size) __attribute__((__malloc__));
+extern "C" int posix_memalign(void **memptr, size_t alignment, size_t size);
+#endif
+
+#endif
+
+static __inline__ void *__attribute__((__always_inline__, __nodebug__,
+                                       __malloc__))
+_mm_malloc(size_t size, size_t align)
+{
+  if (align == 1) {
+    return malloc(size);
+  }
+
+  if (!(align & (align - 1)) && align < sizeof(void *))
+    align = sizeof(void *);
+
+  void *mallocedMemory;
+#ifdef _WIN32
+  mallocedMemory = _aligned_malloc(size, align);
+#else
+  if (posix_memalign(&mallocedMemory, align, size))
+    return 0;
+#endif
+
+  return mallocedMemory;
+}
+
+static __inline__ void __attribute__((__always_inline__, __nodebug__))
+_mm_free(void *p)
+{
+  free(p);
+}
+
+#endif /* __MM_MALLOC_H */