[PATCH v6 06/17] Introduce alloc_ops

[Andrew Jones <drjones@redhat.com>]

alloc_ops provide interfaces for alloc(), free() and friends, allowing
unit tests and common code to use dynamic memory allocation.
arch-specific code must provide the implementations.

Signed-off-by: Andrew Jones <drjones@redhat.com>
---
 lib/alloc.c |  2 ++
 lib/alloc.h | 31 +++++++++++++++++++++++++++++++
 2 files changed, 33 insertions(+)
 create mode 100644 lib/alloc.c
 create mode 100644 lib/alloc.h

diff --git a/lib/alloc.c b/lib/alloc.c
new file mode 100644
index 0000000000000..868664b4dcaa3
--- /dev/null
+++ b/lib/alloc.c
@@ -0,0 +1,2 @@
+#include "alloc.h"
+struct alloc_ops alloc_ops;
diff --git a/lib/alloc.h b/lib/alloc.h
new file mode 100644
index 0000000000000..c8cd61b387a9a
--- /dev/null
+++ b/lib/alloc.h
@@ -0,0 +1,31 @@
+#ifndef _ALLOC_H_
+#define _ALLOC_H_
+#include "libcflat.h"
+
+struct alloc_ops {
+	void *(*alloc)(size_t size);
+	void *(*alloc_aligned)(size_t size, size_t align);
+	void (*free)(const void *addr);
+};
+
+extern struct alloc_ops alloc_ops;
+
+static inline void *alloc(size_t size)
+{
+	assert(alloc_ops.alloc);
+	return alloc_ops.alloc(size);
+}
+
+static inline void *alloc_aligned(size_t size, size_t align)
+{
+	assert(alloc_ops.alloc_aligned);
+	return alloc_ops.alloc_aligned(size, align);
+}
+
+static inline void free(const void *addr)
+{
+	assert(alloc_ops.free);
+	alloc_ops.free(addr);
+}
+
+#endif
-- 
1.9.3