Patch from Emmanuel Raguet <raguet@crf.canon.fr> to add remote debug server

and RPC support to RTEMS.  Thanks. :)  Email follows:

    Hello,

    For Xmas, here is the Remote Debugger on RTEMS !

    Here are 2 patches for the Remote Debugger on RTEMS for pc386 from Linux
    host :

     - one for RTEMS it self,
     - one for GDB-4.17.


    1/ RTEMS patch
    --------------

    This patch adds 2 libraries :
     - a simplified SUN RPC library
     - the Remote Debugger library

    The configuration command is the following :
    ../rtems4/configure --target=i386-rtemself --enable-rtemsbsp=pc386
    --enable-rdbg

    The SUN RPC library is built only if networking is set.
    The RDBG library is built if networking and enable-rdbg are set.

    The function used to initialize the debugger is :
            rtems_rdbg_initialize ();

    A special function has been created to force a task to be
    in a "debug" state : enterRdbg().
    The use of this function is not mandatory.



    2/ GDB-4.17 patch
    -----------------

    This patch create a new RTEMS target for GDB-4.17.

    The configuration command is the following :
    ./configure --enable-shared --target=i386RTEMS

    To connect to a target, use :
      target rtems [your_site_address]

    Then, attach the target using : attach 1

    And... Debug ;)

    You can obtain the original GDB-4.17 on
    ftp://ftp.debian.org/debian/dists/stable/main/source/devel/gdb_4.17.orig.tar.gz

    This has been tested from a Debian 2.0.1 linux host.

1 files changed, 13 insertions, 0 deletions

diff --git a/configure.in b/configure.in
index a796507327..36d1dc17f6 100644
--- a/configure.in
+++ b/configure.in
@@ -43,6 +43,14 @@ AC_ARG_ENABLE(networking, \
   *)  AC_MSG_ERROR(bad value ${enableval} for enable-networking option) ;;
 esac],[RTEMS_HAS_NETWORKING=yes])
 
+AC_ARG_ENABLE(rdbg, \
+[  --enable-rdbg                enable remote debugger], \
+[case "${enableval}" in
+  yes) RTEMS_HAS_RDBG=yes ;;
+  no) RTEMS_HAS_RDBG=no ;;
+  *)  AC_MSG_ERROR(bad value ${enableval} for enable-rdbg option) ;;
+esac],[RTEMS_HAS_RDBG=yes])
+
 AC_ARG_ENABLE(rtems-inlines, \
 [  --enable-rtems-inlines 	    enable RTEMS inline functions (use macros)], \
 [case "${enableval}" in 
@@ -408,6 +416,10 @@ AC_MSG_CHECKING([if networking is enabled? ])
 AC_MSG_RESULT($RTEMS_HAS_NETWORKING)
 if test "$RTEMS_HAS_NETWORKING" = "yes"; then
   RTEMS_CHECK_MAKEFILE(c/src/lib/libnetworking)
+  RTEMS_CHECK_MAKEFILE(c/src/lib/librpc)
+  if test "$RTEMS_HAS_RDBG" = "yes"; then
+    RTEMS_CHECK_MAKEFILE(c/src/lib/librdbg)
+  fi
 fi
 
 # If the C++ support is enabled, then include the Makefiles
@@ -475,6 +487,7 @@ AC_SUBST(RTEMS_LIBC_DIR)
 AC_SUBST(RTEMS_USE_OWN_PDIR)
 AC_SUBST(RTEMS_HAS_POSIX_API)
 AC_SUBST(RTEMS_HAS_NETWORKING)
+AC_SUBST(RTEMS_HAS_RDBG)
 AC_SUBST(RTEMS_USE_MACROS)
 AC_SUBST(RTEMS_HAS_CPLUSPLUS)
 AC_SUBST(RTEMS_USE_GCC272)