1 files changed, 45 insertions, 0 deletions
diff --git a/libc/src/stdlib/freelist_malloc.cpp b/libc/src/stdlib/freelist_malloc.cpp
new file mode 100644
index 000000000000..4d3c42ca90ba
--- /dev/null
+++ b/libc/src/stdlib/freelist_malloc.cpp
@@ -0,0 +1,45 @@
+//===-- Implementation for freelist_malloc --------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "src/__support/freelist_heap.h"
+#include "src/stdlib/calloc.h"
+#include "src/stdlib/free.h"
+#include "src/stdlib/malloc.h"
+#include "src/stdlib/realloc.h"
+
+#include <stddef.h>
+
+namespace LIBC_NAMESPACE {
+
+namespace {
+#ifdef LIBC_FREELIST_MALLOC_SIZE
+// This is set via the LIBC_CONF_FREELIST_MALLOC_BUFFER_SIZE configuration.
+constexpr size_t SIZE = LIBC_FREELIST_MALLOC_SIZE;
+#else
+#error "LIBC_FREELIST_MALLOC_SIZE was not defined for this build."
+#endif
+LIBC_CONSTINIT FreeListHeapBuffer<SIZE> freelist_heap_buffer;
+} // namespace
+
+FreeListHeap<> *freelist_heap = &freelist_heap_buffer;
+
+LLVM_LIBC_FUNCTION(void *, malloc, (size_t size)) {
+  return freelist_heap->allocate(size);
+}
+
+LLVM_LIBC_FUNCTION(void, free, (void *ptr)) { return freelist_heap->free(ptr); }
+
+LLVM_LIBC_FUNCTION(void *, calloc, (size_t num, size_t size)) {
+  return freelist_heap->calloc(num, size);
+}
+
+LLVM_LIBC_FUNCTION(void *, realloc, (void *ptr, size_t size)) {
+  return freelist_heap->realloc(ptr, size);
+}
+
+} // namespace LIBC_NAMESPACE