mmio: vxWorks m68k use default, add weak symbols for old versions

src/libCom/osi/Makefile

@@ -120,6 +120,8 @@ Com_SRCS += osdMessageQueue.c
 Com_SRCS += devLibVME.c
 Com_SRCS += devLibVMEOSD.c
 
+Com_SRCS_vxWorks += epicsMMIO.c
+
 Com_SRCS_vxWorks += atReboot.cpp
 
 # For old vxWorks applications

src/libCom/osi/os/vxWorks/epicsMMIO.c

@@ -0,0 +1,40 @@
+/*************************************************************************\
+* Copyright (c) 2014 Brookhaven Science Associates, as Operator of
+*     Brookhaven National Laboratory.
+* EPICS BASE is distributed subject to a Software License Agreement found
+* in file LICENSE that is included with this distribution.
+\*************************************************************************/
+/*
+ * Author: Michael Davidsaver <mdavidsaver@bnl.gov>
+ */
+
+#ifndef __m68k__
+
+#include "epicsMMIODef.h"
+
+epicsUInt16 sysIn16    (volatile void*) __attribute__((weak));
+epicsUInt32 sysIn32    (volatile void*) __attribute__((weak));
+void        sysOut16   (volatile void*, epicsUInt16) __attribute__((weak));
+void        sysOut32   (volatile void*, epicsUInt32) __attribute__((weak));
+
+epicsUInt16 sysIn16    (volatile void* addr)
+{
+    return nat_read16(addr);
+}
+
+epicsUInt32 sysIn32    (volatile void* addr)
+{
+    return nat_read32(addr);
+}
+
+void        sysOut16   (volatile void* addr, epicsUInt16 val)
+{
+    nat_write16(addr, val);
+}
+
+void        sysOut32   (volatile void* addr, epicsUInt32 val)
+{
+    nat_write32(addr, val);
+}
+
+#endif /* m68k */

src/libCom/osi/os/vxWorks/epicsMMIO.h

@@ -15,6 +15,10 @@
  * Author: Michael Davidsaver <mdavidsaver@bnl.gov>
  */
 
+#ifdef __m68k__
+#include "epicsMMIODef.h"
+#else
+
 #ifndef EPICSMMIO_H
 #define EPICSMMIO_H
 
@@ -125,3 +129,4 @@ void        sysOut32   (volatile void*, epicsUInt32);    /* Synchronous 32 bit w
 #define rwbarr() VX_MEM_BARRIER_RW()
 
 #endif /* EPICSMMIO_H */
+#endif /* m68k */