Merge pull request #1854 from pan-/nrf51_port

RTOS port for NRF51 targets

Author: 0xc0170

hal/targets/cmsis/TARGET_NORDIC/TARGET_MCU_NRF51822/TOOLCHAIN_GCC_ARM/TARGET_MCU_NORDIC_32K/NRF51822.ld

@@ -124,18 +124,20 @@ SECTIONS
 		__bss_end__ = .;
 	} > RAM
 
-	.heap (COPY):
+	.heap (NOLOAD):
 	{
 		__end__ = .;
 		end = __end__;
+		__HeapBase = .;
 		*(.heap*)
+		. = ORIGIN(RAM) + LENGTH(RAM) - Stack_Size;
 		__HeapLimit = .;
 	} > RAM
 
 	/* .stack_dummy section doesn't contains any symbols. It is only
 	 * used for linker to calculate size of stack sections, and assign
 	 * values to stack symbols later */
-	.stack_dummy (COPY):
+	.stack_dummy (NOLOAD):
 	{
 		*(.stack*)
 	} > RAM

hal/targets/cmsis/TARGET_NORDIC/TARGET_MCU_NRF51822/TOOLCHAIN_GCC_ARM/TARGET_MCU_NRF51_16K_S110/NRF51822.ld

@@ -124,18 +124,20 @@ SECTIONS
 		__bss_end__ = .;
 	} > RAM
 
-	.heap (COPY):
+	.heap (NOLOAD):
 	{
 		__end__ = .;
 		end = __end__;
+		__HeapBase = .;
 		*(.heap*)
+		. = ORIGIN(RAM) + LENGTH(RAM) - Stack_Size;
 		__HeapLimit = .;
 	} > RAM
 
 	/* .stack_dummy section doesn't contains any symbols. It is only
 	 * used for linker to calculate size of stack sections, and assign
 	 * values to stack symbols later */
-	.stack_dummy (COPY):
+	.stack_dummy (NOLOAD):
 	{
 		*(.stack*)
 	} > RAM

hal/targets/cmsis/TARGET_NORDIC/TARGET_MCU_NRF51822/TOOLCHAIN_GCC_ARM/TARGET_MCU_NRF51_16K_S130/NRF51822.ld

@@ -124,18 +124,20 @@ SECTIONS
 		__bss_end__ = .;
 	} > RAM
 
-	.heap (COPY):
+	.heap (NOLOAD):
 	{
 		__end__ = .;
 		end = __end__;
+		__HeapBase = .;
 		*(.heap*)
+		. = ORIGIN(RAM) + LENGTH(RAM) - Stack_Size;
 		__HeapLimit = .;
 	} > RAM
 
 	/* .stack_dummy section doesn't contains any symbols. It is only
 	 * used for linker to calculate size of stack sections, and assign
 	 * values to stack symbols later */
-	.stack_dummy (COPY):
+	.stack_dummy (NOLOAD):
 	{
 		*(.stack*)
 	} > RAM

hal/targets/cmsis/TARGET_NORDIC/TARGET_MCU_NRF51822/TOOLCHAIN_GCC_ARM/startup_NRF51822.S

@@ -1,4 +1,4 @@
-/* 
+/*
 Copyright (c) 2013, Nordic Semiconductor ASA
 All rights reserved.
 
@@ -28,8 +28,8 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
-/* 
-NOTE: Template files (including this one) are application specific and therefore 
+/*
+NOTE: Template files (including this one) are application specific and therefore
 expected to be copied into the application project folder prior to its use!
 */
 
@@ -43,6 +43,7 @@ expected to be copied into the application project folder prior to its use!
 #else
     .equ    Stack_Size, 2048
 #endif
+    .globl    Stack_Size
     .globl    __StackTop
     .globl    __StackLimit
 __StackLimit:
@@ -53,21 +54,9 @@ __StackTop:
 
     .section .heap
     .align 3
-#ifdef __HEAP_SIZE
-    .equ    Heap_Size, __HEAP_SIZE
-#else
-    .equ    Heap_Size, 2048
-#endif
     .globl    __HeapBase
     .globl    __HeapLimit
-__HeapBase:
-    .if    Heap_Size
-    .space    Heap_Size
-    .endif
-    .size __HeapBase, . - __HeapBase
-__HeapLimit:
-    .size __HeapLimit, . - __HeapLimit
-    
+
     .section .Vectors
     .align 2
     .globl __Vectors
@@ -129,7 +118,7 @@ __Vectors:
 /* Reset Handler */
 
     .equ    NRF_POWER_RAMON_ADDRESS,            0x40000524
-    .equ    NRF_POWER_RAMON_RAMxON_ONMODE_Msk,  0x3  
+    .equ    NRF_POWER_RAMON_RAMxON_ONMODE_Msk,  0x3
 
     .text
     .thumb
@@ -148,7 +137,7 @@ Reset_Handler:
     STR     R2, [R0]
 
 /*     Loop to copy data from read only memory to RAM. The ranges
- *      of copy from/to are specified by following symbols evaluated in 
+ *      of copy from/to are specified by following symbols evaluated in
  *      linker script.
  *      __etext: End of code section, i.e., begin of data sections to copy from.
  *      __data_start__/__data_end__: RAM address range that data should be
@@ -167,7 +156,7 @@ Reset_Handler:
     str    r0, [r2,r3]
     bgt    .LC1
 .LC0:
-    
+
     LDR     R0, =SystemInit
     BLX     R0
     LDR     R0, =_start
@@ -259,4 +248,3 @@ Default_Handler:
 
 
   .end
-