Diff: mbed-dev/targets/TARGET_ARM_SSG/TARGET_BEETLE/device/TOOLCHAIN_ARM_STD/sys.cpp

Revision:

18:6a4db94011d3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-dev/targets/TARGET_ARM_SSG/TARGET_BEETLE/device/TOOLCHAIN_ARM_STD/sys.cpp	Sun May 14 23:18:57 2017 +0000
@@ -0,0 +1,43 @@
+/*
+ * PackageLicenseDeclared: Apache-2.0
+ * Copyright (c) 2015 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+ #ifdef __cplusplus
+ extern "C" {
+ #endif
+
+ #include <rt_misc.h>
+ #include <stdint.h>
+
+/* Get RW_IRAM1 from scatter definition */
+ extern char Image$$RW_IRAM1$$ZI$$Limit[];
+
+ extern __value_in_regs struct __initial_stackheap __user_setup_stackheap(uint32_t R0, uint32_t R1, uint32_t R2, uint32_t R3) {
+     uint32_t beetle_zi_limit = (uint32_t)Image$$RW_IRAM1$$ZI$$Limit;
+     uint32_t beetle_sp_limit = __current_sp();
+
+     /* beetle_zi_limit has to be 8-byte aligned */
+     beetle_zi_limit = (beetle_zi_limit + 7) & ~0x7;
+
+     struct __initial_stackheap r;
+     r.heap_base = beetle_zi_limit;
+     r.heap_limit = beetle_sp_limit;
+     return r;
+ }
+
+ #ifdef __cplusplus
+ }
+ #endif