STM32: Add support for the IAR compiler

arch/arm/src/stm32/gnu/stm32_vectors.S

@@ -1,7 +1,7 @@
 /************************************************************************************
- * arch/arm/src/stm32/stm32_vectors.S
+ * arch/arm/src/stm32/gnu/stm32_vectors.S
  *
- *   Copyright (C) 2009-2013, 2015 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2009-2013, 2015-2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without

arch/arm/src/stm32/stm32_irq.c

@@ -83,11 +83,17 @@
 
 volatile uint32_t *g_current_regs[1];
 
-/* This is the address of the  exception vector table (determined by the
+ /* This is the address of the  exception vector table (determined by the
- * linker script).
+  * linker script).
- */
+  */
 
+#if defined(__ICCARM__)
+/* _vectors replaced on __vector_table for IAR C-SPY Simulator */
+
+extern uint32_t __vector_table[];
+#else
 extern uint32_t _vectors[];
+#endif
 
 /****************************************************************************
  * Private Functions
@@ -329,7 +335,11 @@ void up_irqinitialize(void)
    * will need to set the NVIC vector location to this alternative location.
    */
 
+#if defined(__ICCARM__)
+  putreg32((uint32_t)__vector_table, NVIC_VECTAB);
+#else
   putreg32((uint32_t)_vectors, NVIC_VECTAB);
+#endif
 
 #ifdef CONFIG_ARCH_RAMVECTORS
   /* If CONFIG_ARCH_RAMVECTORS is defined, then we are using a RAM-based

arch/arm/src/stm32/stm32_start.c

@@ -1,8 +1,7 @@
 /****************************************************************************
  * arch/arm/src/stm32/stm32_start.c
- * arch/arm/src/chip/stm32_start.c
  *
- *   Copyright (C) 2009, 2011-2015 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2009, 2011-2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -58,6 +57,24 @@
 #  include "nvic.h"
 #endif
 
+/****************************************************************************
+ * Pre-processor definitions
+ ****************************************************************************/
+
+#if defined(__ICCARM__)
+#  define _START_BSS  __sfb(".bss")
+#  define _END_BSS    __sfe(".bss")
+#  define _DATA_INIT  __sfb(".data_init")
+#  define _START_DATA __sfb(".data")
+#  define _END_DATA   __sfe(".data")
+#else
+#  define _START_BSS  &_sbss
+#  define _END_BSS    &_ebss
+#  define _DATA_INIT  &_eronly
+#  define _START_DATA &_sdata
+#  define _END_DATA   &_edata
+#endif
+
 /****************************************************************************
  * Private Function prototypes
  ****************************************************************************/
@@ -263,7 +280,7 @@ void __start(void)
    * certain that there are no issues with the state of global variables.
    */
 
-  for (dest = &_sbss; dest < &_ebss; )
+  for (dest = _START_BSS; dest < __END_BSS; )
     {
       *dest++ = 0;
     }
@@ -276,7 +293,7 @@ void __start(void)
    * end of all of the other read-only data (.text, .rodata) at _eronly.
    */
 
-  for (src = &_eronly, dest = &_sdata; dest < &_edata; )
+  for (src = _DATA_INIT, dest = _START_DATA; dest < _END_DATA; )
     {
       *dest++ = *src++;
     }