Initial import of qemu-2.4.1HEADmaster

1 files changed, 39 insertions, 0 deletions

diff --git a/roms/SLOF/clients/net-snk/libc/sbrk.c b/roms/SLOF/clients/net-snk/libc/sbrk.c
new file mode 100644
index 00000000..2ec1b5f1
--- /dev/null
+++ b/roms/SLOF/clients/net-snk/libc/sbrk.c
@@ -0,0 +1,39 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ *     IBM Corporation - initial implementation
+ *****************************************************************************/
+
+#include <unistd.h>
+
+#define HEAP_SIZE 0x200000
+
+
+static char heap[HEAP_SIZE];
+static char *actptr;
+
+void *sbrk(int increment)
+{
+	char *oldptr;
+
+	/* Called for the first time? Then init the actual pointer */
+	if (!actptr) {
+		actptr = heap;
+	}
+
+	if (actptr + increment > heap + HEAP_SIZE) {
+		/* Out of memory */
+		return (void *)-1;
+	}
+
+	oldptr = actptr;
+	actptr += increment;
+
+	return oldptr;
+}