Merge pull request #4014 from NXPmicro/Update_GCC_ARM_Linker

Issue 3763: Reduce heap allocation in the GCC linker file

Author: sg-

targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_K66F/device/TOOLCHAIN_GCC_ARM/MK66FN2M0xxx18.ld

@@ -50,9 +50,15 @@ ENTRY(Reset_Handler)
 
 __ram_vector_table__ = 1;
 
-/* Heap 1/4 of ram and stack 1/8 */
-__stack_size__ = 0x8000;
-__heap_size__ = 0x10000;
+/* With the RTOS in use, this does not affect the main stack size. The size of
+ * the stack where main runs is determined via the RTOS. */
+__stack_size__ = 0x400;
+
+/* This is the guaranteed minimum available heap size for an application. When
+ * uVisor is enabled, this is also the maximum available heap size. The
+ * HEAP_SIZE value is set by uVisor porters to balance the size of the legacy
+ * heap and the page heap in uVisor applications. */
+__heap_size__ = 0x6000;
 
 HEAP_SIZE  = DEFINED(__heap_size__)  ? __heap_size__  : 0x0400;
 STACK_SIZE = DEFINED(__stack_size__) ? __stack_size__ : 0x0400;

targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_K82F/device/TOOLCHAIN_GCC_ARM/MK82FN256xxx15.ld

@@ -52,9 +52,15 @@ ENTRY(Reset_Handler)
 
 __ram_vector_table__ = 1;
 
-/* Heap 1/4 of ram and stack 1/8 */
-__stack_size__ = 0x8000;
-__heap_size__ = 0x10000;
+/* With the RTOS in use, this does not affect the main stack size. The size of
+ * the stack where main runs is determined via the RTOS. */
+__stack_size__ = 0x400;
+
+/* This is the guaranteed minimum available heap size for an application. When
+ * uVisor is enabled, this is also the maximum available heap size. The
+ * HEAP_SIZE value is set by uVisor porters to balance the size of the legacy
+ * heap and the page heap in uVisor applications. */
+__heap_size__ = 0x6000;
 
 HEAP_SIZE  = DEFINED(__heap_size__)  ? __heap_size__  : 0x0400;
 STACK_SIZE = DEFINED(__stack_size__) ? __stack_size__ : 0x0400;

targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_KL27Z/device/TOOLCHAIN_GCC_ARM/MKL27Z64xxx4.ld

@@ -53,9 +53,11 @@ ENTRY(Reset_Handler)
 
 __ram_vector_table__ = 1;
 
-/* Heap 1/4 of ram and stack 1/8 */
-__stack_size__ = 0x800;
-__heap_size__ = 0x1000;
+/* With the RTOS in use, this does not affect the main stack size. The size of
+ * the stack where main runs is determined via the RTOS. */
+__stack_size__ = 0x400;
+/* With the RTOS in use, this does not affect the main heap size. */
+__heap_size__ = 0x0;
 
 HEAP_SIZE  = DEFINED(__heap_size__)  ? __heap_size__  : 0x0400;
 STACK_SIZE = DEFINED(__stack_size__) ? __stack_size__ : 0x0400;

targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_KL43Z/device/TOOLCHAIN_GCC_ARM/MKL43Z256xxx4.ld

@@ -50,8 +50,14 @@ ENTRY(Reset_Handler)
 
 __ram_vector_table__ = 1;
 
-/* Heap 1/4 of ram and stack 1/8 */
-__stack_size__ = 0x1000;
+/* With the RTOS in use, this does not affect the main stack size. The size of
+ * the stack where main runs is determined via the RTOS. */
+__stack_size__ = 0x400;
+
+/* This is the guaranteed minimum available heap size for an application. When
+ * uVisor is enabled, this is also the maximum available heap size. The
+ * HEAP_SIZE value is set by uVisor porters to balance the size of the legacy
+ * heap and the page heap in uVisor applications. */
 __heap_size__ = 0x2800;
 
 HEAP_SIZE  = DEFINED(__heap_size__)  ? __heap_size__  : 0x0400;

targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_KL82Z/device/TOOLCHAIN_GCC_ARM/MKL82Z128xxx7.ld

@@ -53,8 +53,14 @@ ENTRY(Reset_Handler)
 
 __ram_vector_table__ = 1;
 
-/* Heap 1/4 of ram and stack 1/8 */
-__stack_size__ = 0x3000;
+/* With the RTOS in use, this does not affect the main stack size. The size of
+ * the stack where main runs is determined via the RTOS. */
+__stack_size__ = 0x400;
+
+/* This is the guaranteed minimum available heap size for an application. When
+ * uVisor is enabled, this is also the maximum available heap size. The
+ * HEAP_SIZE value is set by uVisor porters to balance the size of the legacy
+ * heap and the page heap in uVisor applications. */
 __heap_size__ = 0x6000;
 
 HEAP_SIZE  = DEFINED(__heap_size__)  ? __heap_size__  : 0x0400;

targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_KW24D/device/TOOLCHAIN_GCC_ARM/MKW24D512xxx5.ld

@@ -48,8 +48,14 @@ ENTRY(Reset_Handler)
 
 __ram_vector_table__ = 1;
 
-/* Heap 1/4 of ram and stack 1/8 */
-__stack_size__ = 0x2000;
+/* With the RTOS in use, this does not affect the main stack size. The size of
+ * the stack where main runs is determined via the RTOS. */
+__stack_size__ = 0x400;
+
+/* This is the guaranteed minimum available heap size for an application. When
+ * uVisor is enabled, this is also the maximum available heap size. The
+ * HEAP_SIZE value is set by uVisor porters to balance the size of the legacy
+ * heap and the page heap in uVisor applications. */
 __heap_size__ = 0x4000;
 
 HEAP_SIZE  = DEFINED(__heap_size__)  ? __heap_size__  : 0x0400;

targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_KW41Z/device/TOOLCHAIN_GCC_ARM/MKW41Z512xxx4.ld

@@ -48,9 +48,15 @@ ENTRY(Reset_Handler)
 
 __ram_vector_table__ = 1;
 
-/* Heap 1/4 of ram and stack 1/8 */
-__stack_size__ = 0x4000;
-__heap_size__ = 0x8000;
+/* With the RTOS in use, this does not affect the main stack size. The size of
+ * the stack where main runs is determined via the RTOS. */
+__stack_size__ = 0x400;
+
+/* This is the guaranteed minimum available heap size for an application. When
+ * uVisor is enabled, this is also the maximum available heap size. The
+ * HEAP_SIZE value is set by uVisor porters to balance the size of the legacy
+ * heap and the page heap in uVisor applications. */
+__heap_size__ = 0x6000;
 
 HEAP_SIZE  = DEFINED(__heap_size__)  ? __heap_size__  : 0x0400;
 STACK_SIZE = DEFINED(__stack_size__) ? __stack_size__ : 0x0400;