Align ARMC linker script with GCC

Author: boraozgen

targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F412xG/TOOLCHAIN_ARM/stm32f412xg.sct

@@ -33,6 +33,14 @@
 /* Round up VECTORS_SIZE to 8 bytes */
 #define VECTORS_SIZE  (((NVIC_NUM_VECTORS * 4) + 7) AND ~7)
 
+#define MBED_CRASH_REPORT_RAM_SIZE  0x100
+
+#define MBED_IRAM1_START (MBED_RAM_START + VECTORS_SIZE + MBED_CRASH_REPORT_RAM_SIZE)
+#define MBED_IRAM1_SIZE (MBED_RAM_SIZE - VECTORS_SIZE - MBED_CRASH_REPORT_RAM_SIZE)
+
+
+#define RAM_FIXED_SIZE (MBED_BOOT_STACK_SIZE + VECTORS_SIZE + MBED_CRASH_REPORT_RAM_SIZE)
+
 LR_IROM1  MBED_APP_START  MBED_APP_SIZE  {
 
   ER_IROM1  MBED_APP_START  MBED_APP_SIZE  {
@@ -41,11 +49,14 @@ LR_IROM1  MBED_APP_START  MBED_APP_SIZE  {
     .ANY (+RO)
   }
 
-  RW_IRAM1  (MBED_RAM_START + VECTORS_SIZE)  {  ; RW data
-    .ANY (+RW +ZI)
+  RW_m_crash_data  (MBED_RAM_START + VECTORS_SIZE)  EMPTY MBED_CRASH_REPORT_RAM_SIZE { ; RW data
+  }
+
+  RW_IRAM1  MBED_IRAM1_START  MBED_IRAM1_SIZE  {  ; RW data
+   .ANY (+RW +ZI)
   }
 
-  ARM_LIB_HEAP  AlignExpr(+0, 16)  EMPTY  (MBED_RAM_START + MBED_RAM_SIZE - MBED_BOOT_STACK_SIZE - AlignExpr(ImageLimit(RW_IRAM1), 16))  { ; Heap growing up
+  ARM_LIB_HEAP  AlignExpr(+0, 16)  EMPTY  (MBED_RAM_START + MBED_RAM_SIZE - RAM_FIXED_SIZE - AlignExpr(ImageLimit(RW_IRAM1), 16))  {
   }
 
   ARM_LIB_STACK  (MBED_RAM_START + MBED_RAM_SIZE)  EMPTY  -MBED_BOOT_STACK_SIZE  { ; Stack region growing down