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@@ -0,0 +1,127 @@
+# ====================================================================
+#
+#      common.cdl
+#
+#      HAL common configuration data
+#
+# ====================================================================
+#####COPYRIGHTBEGIN####
+#                                                                          
+# -------------------------------------------                              
+# The contents of this file are subject to the Red Hat eCos Public License 
+# Version 1.1 (the "License"); you may not use this file except in         
+# compliance with the License.  You may obtain a copy of the License at    
+# http://www.redhat.com/                                                   
+#                                                                          
+# Software distributed under the License is distributed on an "AS IS"      
+# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
+# License for the specific language governing rights and limitations under 
+# the License.                                                             
+#                                                                          
+# The Original Code is eCos - Embedded Configurable Operating System,      
+# released September 30, 1998.                                             
+#                                                                          
+# The Initial Developer of the Original Code is Red Hat.                   
+# Portions created by Red Hat are                                          
+# Copyright (C) 1998, 1999, 2000 Red Hat, Inc.                             
+# All Rights Reserved.                                                     
+# -------------------------------------------                              
+#                                                                          
+#####COPYRIGHTEND####
+# ====================================================================
+######DESCRIPTIONBEGIN####
+#
+# Author(s):      jskov
+# Original data:  nickg,jskov,jlarmour
+# Contributors:
+# Date:           1999-07-02
+#
+#####DESCRIPTIONEND####
+#
+# ====================================================================
+
+cdl_option CYGFUN_HAL_COMMON_KERNEL_SUPPORT {
+    display       "Provide eCos kernel support"
+    requires      CYGPKG_KERNEL
+    default_value CYGPKG_KERNEL
+    description   "
+        The HAL can be configured to either support the full eCos
+        kernel, or to support only very simple applications which do
+        not require a full kernel. If kernel support is not required
+        then some of the startup, exception, and interrupt handling
+        code can be eliminated."
+}
+
+cdl_interface CYGINT_HAL_DIAG_DISABLE_GDB_PROTOCOL_SUPPORTED {
+    display "HAL allows GDB protocol to be disabled for..."
+    no_define
+}
+
+cdl_option CYGDBG_HAL_DIAG_DISABLE_GDB_PROTOCOL {
+    display       "Disable GDB protocol for diagnostic output"
+    active_if     CYGINT_HAL_DIAG_DISABLE_GDB_PROTOCOL_SUPPORTED
+    default_value 0
+    description "
+        This option forces diagnostic output to not use the GDB
+        protocol.  Most programs will use the GDB protocol for
+        diagnostic I/O because of the environment.  This option
+        allows for an explicit override in these cases."
+}
+
+# NOTE: The requirement for kernel exception support is bogus in that
+# the user can supply a deliver_exception function herself. In that
+# case, however, it is easy to force the kernel option off while leaving
+# this one on.  Having the requirement prevents accidental invalid
+# configurations of the kernel.
+cdl_option CYGPKG_HAL_EXCEPTIONS {
+    display       "HAL exception support"
+    requires      CYGPKG_KERNEL_EXCEPTIONS
+    default_value CYGPKG_KERNEL_EXCEPTIONS
+    description   "
+        When a processor exception occurs, for example an attempt to
+        execute an illegal instruction or to perform a divide by
+        zero, this exception may be handled in a number of different
+        ways. If the target system has gdb support then typically
+        the exception will be handled by gdb code. Otherwise if the
+        HAL exception support is enabled then the HAL will invoke a
+        routine deliver_exception(). Typically this routine will be
+        provided by the eCos kernel, but it is possible for
+        application code to provide its own implementation. If the
+        HAL exception support is not enabled and a processor
+        exception occurs then the behaviour of the system is
+        undefined."
+}
+
+cdl_option CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG {
+    display       "Stop calling constructors early"
+    requires      CYGSEM_LIBC_INVOKE_DEFAULT_STATIC_CONSTRUCTORS
+    default_value 0
+    description   "
+        This option supports environments where some constructors
+        must be run in the context of a thread rather than at
+        simple system startup time. A boolean flag named
+        cyg_hal_stop_constructors is set to 1 when constructors
+        should no longer be invoked. It is up to some other
+        package to deal with the rest of the constructors.
+        In the current version this is only possible with the
+        C library."
+}
+
+cdl_option CYGSEM_HAL_INSTALL_MMU_TABLES {
+    display        "Install MMU tables."
+    default_value  1
+    description    "This option controls whether this application installs
+       its own Memory Management Unit (MMU) tables, or relies on the
+       existing environment to run."
+}
+
+cdl_option CYGSEM_HAL_STATIC_MMU_TABLES {
+    display        "Use static MMU tables."
+    default_value  0
+    requires       CYGSEM_HAL_INSTALL_MMU_TABLES
+    description "This option defines an environment where any Memory
+       Management Unit (MMU) tables are constant.  Normally used by ROM
+       based environments, this provides a way to save RAM usage which
+       would otherwise be required for these tables."
+}
+