&& !CYGDBG_HAL_DIAG_TO_DEBUG_CHAN }
                description   "
                    This option is a configuration hint - it is enabled
                    when the HAL initialization code will make use
                    of the console channel configuration option."
            }
                

            cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE {
                display       "Initialize whole of virtual vector table"
                default_value { CYG_HAL_STARTUP != "RAM" || !CYGSEM_HAL_USE_ROM_MONITOR }
                requires CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_RESET
                requires CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DELAY_US
                requires CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_CACHE
                requires CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DATA
                requires CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_COMMS
                description   "
                    This option will cause the whole of the virtual
                    vector table to be initialized with dummy values on
                    startup. When this option is enabled, all the
                    options below must also be enabled - or the
                    table would be empty when the application
                    launches.

                    On targets where older ROM monitors without
                    virtual vector support may still be in use, it is
                    necessary for RAM applictions to initialize the
                    table (since all HAL diagnostics and debug IO
                    happens via the table)."
            }

            cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DEFAULT {
                display       "Claim virtual vector table entries by default"
		active_if     !CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE
                default_value 1
                description "
                    By default most virtual vectors will be claimed by
                    RAM startup configurations, meaning that the RAM
                    application will provide the services. The
                    exception is COMMS support (HAL
                    diagnostics/debugging IO) which is left in the
                    control of the ROM monitor.

                    The reasoning behind this is to get as much of the
                    code exercised during regular development so it
                    is known to be working the few times a new ROM
                    monitor or a ROM production configuration is used
                    - COMMS are excluded only by necessity in order to
                    avoid breaking an existing debugger connections
                    (there may be ways around this).

                    For production RAM configurations this option can
                    be switched off, causing the appliction to rely on
                    the ROM monitor for these services, thus
                    saving some space.

                    Individual vectors may also be left unclaimed,
                    controlled by the below options (meaning that the
                    associated service provided by the ROM monitor
                    will be used)."
            }

            cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_RESET {
                display       "Claim reset virtual vectors"
                default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE \
                                || CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DEFAULT }
                description   "
                    This option will cause the reset and kill_by_reset
                    virtual vectors to be claimed."
            }

            cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_VERSION {
                display       "Claim version virtual vectors"
                default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE }
                description   "
                    This option will cause the version
                    virtual vectors to be claimed."
            }

            cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DELAY_US {
                display       "Claim delay_us virtual vector"
                default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE \
                                || CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DEFAULT }
                description   "
                    This option will cause the delay_us
                    virtual vector to be claimed."
            }

            cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_CACHE {
                display       "Claim cache virtual vectors"
                default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE \
                                || CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DEFAULT }
                description   "
                    This option will cause the cache virtual vectors
                    to be claimed."
            }

            cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DATA {
                display       "Claim data virtual vectors"
                default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE \
                                || CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DEFAULT }
                description   "
                    This option will cause the data virtual vectors
                    to be claimed. At present there is only one, used
                    by the RedBoot ethernet driver to share diag output."
            }

            cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_COMMS {
                display       "Claim comms virtual vectors"
                default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE \
                                || CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS }
                description   "
                    This option will cause the communication tables
                    that are part of the virtual vectors mechanism to
                    be claimed. Note that doing this may cause an
                    existing ROM monitor communication connection to
                    be closed. For this reason, the option is disabled
                    per default for normal application
                    configurations."
            }

            cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_DIAG {
                display       "Do diagnostic IO via virtual vector table"
                calculated    1
                description   "
                    All HAL IO happens via the virtual vector table / comm
                    tables when those tables are supported by the HAL.

                    If so desired, the low-level IO functions can
                    still be provided by the RAM application by
                    enabling the CLAIM_COMMS option."
            }
        }

        cdl_option CYGBLD_BUILD_COMMON_GDB_STUBS {
            display "Build common GDB stub ROM image"
            default_value 0
            parent  CYGBLD_GLOBAL_OPTIONS
            requires CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
            no_define
            description "
                Unless a target board has specific requirements to the
                stub implementation, it can use a simple common stub.
                This option, which gets enabled by platform HALs as
                appropriate, controls the building of the common stub."
                         
            make -priority 315 {
                <PREFIX>/bin/gdb_module.img : <PACKAGE>/src/stubrom/stubrom.c <PREFIX>/lib/extras.o <PREFIX>/lib/libtarget.a <PREFIX>/lib/target.ld <PREFIX>/lib/vectors.o
                @sh -c "mkdir -p src/stubrom $(dir $@)"
                $(CC) -c $(INCLUDE_PATH) -Wp,-MD,deps.tmp -I$(dir $<) $(CFLAGS) -o src/stubrom/gdb_module.o $<
                @echo $@ ": \\" > $(notdir $@).deps
                @echo $(wildcard $(PREFIX)/lib/*) " \\" >> $(notdir $@).deps
                @tail -n +2 deps.tmp >> $(notdir $@).deps
                @echo >> $(notdir $@).deps
                @rm deps.tmp
                $(CC) $(LDFLAGS) -L$(PREFIX)/lib -Ttarget.ld -o $@ src/stubrom/gdb_module.o
            }
        }


    }

    # Does platform need special I/O initializations?
    cdl_interface     CYGINT_HAL_PLF_IF_INIT {
        display       "Platform defined I/O channels."
        description   "
          Platforms which provide additional I/O channels can implement
          this interface, indicating that the function plf_if_init()
          needs to be called."
    }

    # Does platform provide IDE I/O macros?
    cdl_interface     CYGINT_HAL_PLF_IF_IDE {
        display       "Platform IDE I/O support."
        description   "
          Platforms which provide IDE controllers can implement
          this interface, indicating that IDE I/O macros are
          available."
    }
    cdl_option CYGPKG_HAL_GDB_FILEIO {
        display       "File I/O operations via GDB"
        default_value 0
        active_if     CYGSEM_REDBOOT_BSP_SYSCALLS
        requires      CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
        compile       gdb-fileio.c
        description   "This option enables support for various file I/O
                       operations using the GDB remote protocol to communicate
                       with GDB. The operations are then performed on the
                       debugging host by proxy. These operations are only
                       currently available by using a system call interface
                       to RedBoot. This may change in the future."
    }

    define_proc {
        puts $::cdl_header "/***** proc output start *****/"
        puts $::cdl_header "#include <pkgconf/system.h>"

        puts $::cdl_header "#include CYGBLD_HAL_TARGET_H"
        puts $::cdl_header "#ifdef   CYGBLD_HAL_VARIANT_H"
        puts $::cdl_header "#include CYGBLD_HAL_VARIANT_H"
        puts $::cdl_header "#endif"
        puts $::cdl_header "#include CYGBLD_HAL_PLATFORM_H"

        puts $::cdl_header "/****** proc output end ******/"

    }

    cdl_option     CYGPKG_HAL_BUILD_COMPILER_TESTS {
        display       "Build Compiler sanity checking tests"
        description   "
            Enabling this option causes compiler tests to be built."
    }

    cdl_component CYGPKG_HAL_TESTS {
        display "Common HAL tests"
        flavor  data
        no_define
        calculated {  "tests/context tests/basic"
                      . ((!CYGINT_HAL_TESTS_NO_CACHES) ? " tests/cache" : "")
                      . ((CYGPKG_HAL_BUILD_COMPILER_TESTS) ? " tests/cpp1 tests/vaargs" : "")
                      . ((!CYGVAR_KERNEL_COUNTERS_CLOCK) ?   " tests/intr" : "") }
        description   "
            This option specifies the set of tests for the common HAL."


        cdl_interface CYGINT_HAL_TESTS_NO_CACHES {
            display       "Interface for cache presence"
            flavor        booldata
            description   "
                Some architectures and/or platforms do not have caches. By
                implementing this interface, these can disable the various
                cache-related tests."
        }                

    }
}