IAR support for ethernet library

libraries/net/lwip/lwip-sys/arch/cc.h

@@ -71,8 +71,8 @@ typedef uintptr_t          mem_ptr_t;
     #define PACK_STRUCT_STRUCT
     #define PACK_STRUCT_END
     #define PACK_STRUCT_FIELD(fld) fld
-//    #define PACK_STRUCT_USE_INCLUDES
-    #error NEEDS ALIGNED // FIXME TBD
+    #define IAR_STR(a) #a
+    #define ALIGNED(n) _Pragma(IAR_STR(data_alignment= ## n ##))
 #else 
     /* GCC tools (CodeSourcery) */
     #define PACK_STRUCT_BEGIN

libraries/net/lwip/lwip-sys/arch/sys_arch.c

@@ -427,7 +427,11 @@ sys_thread_t sys_thread_new(const char *pcName,
     t->def.tpriority = (osPriority)priority;
     t->def.stacksize = stacksize;
 #ifndef __MBED_CMSIS_RTOS_CA9
+    #if defined (__ICCARM__)
+    t->def.stack_pointer = (uint32_t*)malloc(stacksize);
+    #else
     t->def.stack_pointer = (unsigned char*)malloc(stacksize);
+    #endif
     if (t->def.stack_pointer == NULL) {
       error("Error allocating the stack memory");
     }

libraries/tests/net/protocols/NTPClient_HelloWorld/NTPClient/NTPClient.h

@@ -61,6 +61,9 @@ public:
   NTPResult setTime(const char* host, uint16_t port = NTP_DEFAULT_PORT, uint32_t timeout = NTP_DEFAULT_TIMEOUT); //Blocking
 
 private:
+#if defined (__ICCARM__)
+    #pragma pack()
+#endif
   struct NTPPacket //See RFC 4330 for Simple NTP
   {
     //WARN: We are in LE! Network is BE!
@@ -86,7 +89,11 @@ private:
     uint32_t rxTm_f;
     uint32_t txTm_s;
     uint32_t txTm_f;
+#if defined (__ICCARM__)
+  };
+#else
   } __attribute__ ((packed));
+#endif
 
   UDPSocket m_sock;
 };