Require the user to provide a BSP list when build SMP or MP.

Close 3383.

aclocal/enable-multiprocessing.m4

@@ -6,7 +6,8 @@ AC_ARG_ENABLE(multiprocessing,
 communication interface between different RTEMS instances and allows
 synchronization of objects via message passing])],
 [case "${enable_multiprocessing}" in
-  yes) ;;
+  yes) test -z $enable_rtemsbsp && AC_MSG_ERROR([Multiprocessing requires BSPs to be provided, none have, see --enable-rtemsbsp])
+       ;;
   no) ;;
   *)  AC_MSG_ERROR(bad value ${enableval} for enable-multiprocessing option) ;;
 esac],[enable_multiprocessing=no])

aclocal/enable-rtemsbsp.m4

@@ -6,7 +6,7 @@ AC_DEFUN([RTEMS_ENABLE_RTEMSBSP],
 AC_BEFORE([$0], [RTEMS_ENV_RTEMSBSP])
 AC_ARG_ENABLE(rtemsbsp,
 [AS_HELP_STRING([--enable-rtemsbsp="bsp1 bsp2 .."],
-[BSPs to include in build])],
+[BSPs to include in build, required for SMP and MP builds])],
 [case "${enable_rtemsbsp}" in
   yes ) enable_rtemsbsp="" ;;
   no ) enable_rtemsbsp="no" ;;

aclocal/enable-smp.m4

@@ -6,7 +6,8 @@ AC_ARG_ENABLE(smp,
 [AS_HELP_STRING([--enable-smp],[enable support for symmetric multiprocessing
 (SMP)])],
 [case "${enableval}" in
-  yes) case "${RTEMS_CPU}" in
+  yes) test -z $enable_rtemsbsp && AC_MSG_ERROR([SMP requires BSPs to be provided, none have, see --enable-rtemsbsp])
+       case "${RTEMS_CPU}" in
          arm|powerpc|sparc|i386) RTEMS_HAS_SMP=yes ;;
          *)          RTEMS_HAS_SMP=no ;;
        esac

configure.ac

@@ -21,13 +21,14 @@ AM_MAINTAINER_MODE
 
 ## These option are only in here to let --help report all supported
 ## options.
+RTEMS_ENABLE_RTEMSBSP
 RTEMS_ENABLE_MULTIPROCESSING
+RTEMS_ENABLE_SMP
 RTEMS_ENABLE_POSIX
 RTEMS_ENABLE_NETWORKING
 RTEMS_ENABLE_CXX
 RTEMS_ENABLE_TESTS
 RTEMS_ENABLE_RTEMS_DEBUG
-RTEMS_ENABLE_RTEMSBSP
 RTEMS_ENABLE_PARAVIRT
 RTEMS_ENABLE_DRVMGR