1 files changed, 48 insertions, 0 deletions
diff --git a/libc/bionic/jemalloc_wrapper.cpp b/libc/bionic/jemalloc_wrapper.cpp
new file mode 100644
index 0000000..e33d560
--- /dev/null
+++ b/libc/bionic/jemalloc_wrapper.cpp
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#include <sys/param.h>
+#include <unistd.h>
+
+#include "jemalloc.h"
+#include "private/bionic_macros.h"
+
+void* je_pvalloc(size_t bytes) {
+  size_t pagesize = getpagesize();
+  size_t size = BIONIC_ALIGN(bytes, pagesize);
+  if (size < bytes) {
+    return NULL;
+  }
+  return je_memalign(pagesize, size);
+}
+
+#ifdef je_memalign
+#undef je_memalign
+#endif
+
+// The man page for memalign says it fails if boundary is not a power of 2,
+// but this is not true. Both glibc and dlmalloc round up to the next power
+// of 2, so we'll do the same.
+void* je_memalign_round_up_boundary(size_t boundary, size_t size) {
+  if (boundary != 0) {
+    if (!powerof2(boundary)) {
+      boundary = BIONIC_ROUND_UP_POWER_OF_2(boundary);
+    }
+  } else {
+    boundary = 1;
+  }
+  return je_memalign(boundary, size);
+}