1 files changed, 47 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sparc/shared/startup/early_malloc.c b/c/src/lib/libbsp/sparc/shared/startup/early_malloc.c
new file mode 100644
index 0000000000..1f968da206
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/shared/startup/early_malloc.c
@@ -0,0 +1,47 @@
+/*
+ *  Early dynamic memory allocation (not freeable) for BSP
+ *  boot routines. Minimum alignment 8 bytes. Memory is
+ *  allocated after _end, it will shrink the workspace.
+ *
+ *  COPYRIGHT (c) 2011.
+ *  Aeroflex Gaisler AB
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ */
+
+#include <bsp.h>
+#include <stdlib.h>
+
+/* Tells us where to put the workspace in case remote debugger is present. */
+extern uint32_t rdb_start;
+
+/* Must be aligned to 8 */
+extern unsigned int early_mem;
+
+/* must be identical to STACK_SIZE in start.S */
+#define STACK_SIZE (16 * 1024)
+
+/* Allocate 8-byte aligned non-freeable pre-malloc() memory. The function
+ * can be called at any time. The work-area will shrink when called before
+ * bsp_get_work_area(). malloc() is called to get memory when this function
+ * is called after bsp_get_work_area().
+ */
+void *bsp_early_malloc(int size)
+{
+	void *start;
+
+	/* Not early anymore? */
+	if (early_mem == ~0)
+		return malloc(size);
+
+	size = (size + 7) & ~0x7;
+	if (rdb_start - STACK_SIZE - early_mem < size)
+		return NULL;
+
+	start = (void *)early_mem;
+	early_mem += size;
+
+	return start;
+}