Update some more standard demos for use on 64-bit architectures.

[freertos] / FreeRTOS / Demo / CORTEX_R5_UltraScale_MPSoC / RTOSDemo_R5_bsp / psu_cortexr5_0 / libsrc / standalone_v5_4 / src / sbrk.c

diff --git a/FreeRTOS/Demo/CORTEX_R5_UltraScale_MPSoC/RTOSDemo_R5_bsp/psu_cortexr5_0/libsrc/standalone_v5_4/src/sbrk.c b/FreeRTOS/Demo/CORTEX_R5_UltraScale_MPSoC/RTOSDemo_R5_bsp/psu_cortexr5_0/libsrc/standalone_v5_4/src/sbrk.c
new file mode 100644 (file)
index 0000000..7f94fab
--- /dev/null
+++ b/FreeRTOS/Demo/CORTEX_R5_UltraScale_MPSoC/RTOSDemo_R5_bsp/psu_cortexr5_0/libsrc/standalone_v5_4/src/sbrk.c
@@ -0,0 +1,65 @@
+/******************************************************************************
+*
+* Copyright (C) 2014 - 2015 Xilinx, Inc. All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* Use of the Software is limited solely to applications:
+* (a) running on a Xilinx device, or
+* (b) that interact with a Xilinx device through a bus or interconnect.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+* XILINX  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+* Except as contained in this notice, the name of the Xilinx shall not be used
+* in advertising or otherwise to promote the sale, use or other dealings in
+* this Software without prior written authorization from Xilinx.
+*
+******************************************************************************/
+
+#include <errno.h>
+#include "xil_types.h"
+#ifdef __cplusplus
+extern "C" {
+       __attribute__((weak)) char8 *sbrk (s32 nbytes);
+}
+#endif
+
+extern u8 _heap_start[];
+extern u8 _heap_end[];
+extern char8 HeapBase[];
+extern char8 HeapLimit[];
+
+
+
+__attribute__((weak)) char8 *sbrk (s32 nbytes)
+{
+  char8 *base;
+  static char8 *heap_ptr = HeapBase;
+
+  base = heap_ptr;
+  if(heap_ptr != NULL) {
+       heap_ptr += nbytes;
+  }
+
+/*  if (heap_ptr <= ((char8 *)&_heap_end + 1)) */
+  if (heap_ptr <= ((char8 *)&HeapLimit + 1)) {
+    return base;
+  }    else {
+    errno = ENOMEM;
+    return ((char8 *)-1);
+  }
+}