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# ====================================================================

#

#      kernel.cdl

#

#      eCos kernel configuration data

#

# ====================================================================

#####ECOSGPLCOPYRIGHTBEGIN####

## -------------------------------------------

## This file is part of eCos, the Embedded Configurable Operating System.

## Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

##

## eCos is free software; you can redistribute it and/or modify it under

## the terms of the GNU General Public License as published by the Free

## Software Foundation; either version 2 or (at your option) any later version.

##

## eCos is distributed in the hope that it will be useful, but WITHOUT ANY

## WARRANTY; without even the implied warranty of MERCHANTABILITY or

## FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

## for more details.

##

## You should have received a copy of the GNU General Public License along

## with eCos; if not, write to the Free Software Foundation, Inc.,

## 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

##

## As a special exception, if other files instantiate templates or use macros

## or inline functions from this file, or you compile this file and link it

## with other works to produce a work based on this file, this file does not

## by itself cause the resulting work to be covered by the GNU General Public

## License. However the source code for this file must still be made available

## in accordance with section (3) of the GNU General Public License.

##

## This exception does not invalidate any other reasons why a work based on

## this file might be covered by the GNU General Public License.

##

## Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.

## at http://sources.redhat.com/ecos/ecos-license/

## -------------------------------------------

#####ECOSGPLCOPYRIGHTEND####

# ====================================================================

######DESCRIPTIONBEGIN####

#

# Author(s):      bartv

# Original data:  nickg

# Contributors:

# Date:           1999-06-13

#

#####DESCRIPTIONEND####

#

# ====================================================================

cdl_package CYGPKG_KERNEL {

    display       "eCos kernel"

    doc           ref/kernel.html

    include_dir   cyg/kernel

    description   "

        This package contains the core functionality of the eCos

        kernel. It relies on functionality provided by various HAL

        packages and by the eCos infrastructure. In turn the eCos

        kernel provides support for other packages such as the device

        drivers and the uITRON compatibility layer."

    # FIXME: The compile statement should be split up and integrated as

    #        part of the components - so files only get comiled when they

    #        will actually be used.

    compile       common/clock.cxx     common/timer.cxx  common/kapi.cxx   \

                  common/thread.cxx    common/except.cxx                   \

                  intr/intr.cxx                                            \

                  sched/bitmap.cxx     sched/lottery.cxx sched/mlqueue.cxx \

                  sched/sched.cxx                                          \

                  sync/bin_sem.cxx     sync/cnt_sem.cxx  sync/flag.cxx     \

                  sync/cnt_sem2.cxx    sync/mbox.cxx     sync/mutex.cxx    \

                  debug/dbg-thread-demux.c

    # ---------------------------------------------------------------------

    # The first component within the kernel is related to interrupt

    # handling.

    cdl_component CYGPKG_KERNEL_INTERRUPTS {

        display       "Kernel interrupt handling"

        flavor        none

        doc           ref/kernel-interrupts.html

        description   "

            The majority of configuration options related to interrupt

            handling are in the HAL packages, since usually the code has

            to be platform-specific. There are a number of options

            provided within the kernel related to slightly higher-level

            concepts, for example Delayed Service Routines."

        script        interrupts.cdl

    }

    # ---------------------------------------------------------------------

    # Exceptions. Currently there are only two options. The first

    # determines whether or not exceptions are enabled at all. The

    # second controls whether they apply globally or on a per-thread

    # basis. There should probably be more options, but the boundary

    # between the HAL and kernel becomes blurred.

    cdl_component CYGPKG_KERNEL_EXCEPTIONS {

        display       "Exception handling"

        requires      CYGPKG_HAL_EXCEPTIONS

        default_value 1

        doc           ref/kernel-exceptions.html

        description   "

            In the context of the eCos kernel exceptions are unexpected

            events detected by the hardware, for example an attempt to

            execute an illegal instruction. There is no relation with

            other forms of exception, for example the catch and throw

            facilities of languages like C++. It is possible to disable

            all support for exceptions and thus save some memory."

        cdl_option CYGSEM_KERNEL_EXCEPTIONS_DECODE {

            display       "Decode exception types in kernel"

            default_value 0

            description   "

                On targets where several different types of exception are

                possible, for example executing an illegal instruction and

                division by zero, it is possible for the kernel to do some

                decoding of the exception type and deliver the different

                types of exception to different handlers in the application

                code. Alternatively the kernel can simply pass all

                exceptions directly to application code, leaving the

                decoding to be done by the application"

        }

        cdl_option CYGSEM_KERNEL_EXCEPTIONS_GLOBAL {

            display       "Use global exception handlers"

            default_value 1

            description   "

                In the context of the eCos kernel exceptions are

                unexpected events detected by the hardware, for

                example an attempt to execute an illegal

                instruction. If the kernel is configured

                to support exceptions then two implementations are

                possible. The default implementation involves a single set

                of exception handlers that are in use for the entire

                system. The alternative implementation allows different

                exception handlers to be specified for each thread."

        }

    }

    # ---------------------------------------------------------------------

    cdl_component CYGPKG_KERNEL_SCHED {

        display       "Kernel schedulers"

        flavor        none

        doc           ref/kernel-overview.html#KERNEL-OVERVIEW-SCHEDULERS

        description   "

            The eCos kernel provides a choice of schedulers. In addition

            there are a number of configuration options to control the

            detailed behaviour of these schedulers."

        script        scheduler.cdl

    }

    # ---------------------------------------------------------------------

    # SMP support

    cdl_component CYGPKG_KERNEL_SMP_SUPPORT {

        display       "SMP support"

        flavor        bool

        requires      CYGPKG_HAL_SMP_SUPPORT

        default_value 0

    }

    # ---------------------------------------------------------------------

    cdl_component CYGPKG_KERNEL_COUNTERS {

        display       "Counters and clocks"

        flavor        none

        doc           ref/kernel-counters.html

        description   "

            The counter objects provided by the kernel provide an

            abstraction of the clock facility that is generally provided.

            Application code can associate alarms with counters, where an

            alarm is identified by the number of ticks until it triggers,

            the action to be taken on triggering, and whether or not the

            alarm should be repeated."

        script        counters.cdl

    }

    # ---------------------------------------------------------------------

    cdl_component CYGPKG_KERNEL_THREADS {

        display       "Thread-related options"

        flavor        none

        description   "

            There are a number of configuration options related to the

            implementation of threads, for example whether or not the

            eCos kernel supports per-thread data."

        script        thread.cdl

    }

    # ---------------------------------------------------------------------

    cdl_component CYGPKG_KERNEL_SYNCH {

        display       "Synchronization primitives"

        flavor        none

        description   "

            The eCos kernel supports a number of different

            synchronization primitives such as mutexes, semaphores,

            condition variables, and message boxes. There are

            configuration options to control the exact behaviour of some

            of these synchronization primitives."

        script        synch.cdl

    }

    # ---------------------------------------------------------------------

    cdl_component CYGPKG_KERNEL_INSTRUMENT {

        display       "Kernel instrumentation"

        flavor        bool

        default_value 0

        description   "

            The current release of the kernel contains an initial version

            of instrumentation support. The various parts of the kernel

            will invoke instrumentation routines whenever appropriate

            events occur, and these will be stored in a circular buffer

            for later reference."

        compile       instrmnt/meminst.cxx

        script        instrument.cdl

    }

    #===================================================================

    # Options related to source-level debugging and diagnostics.

    cdl_component CYGPKG_KERNEL_DEBUG {

        display       "Source-level debugging support"

        flavor        none

        description   "

            If the source level debugger gdb is to be used for debugging

            application code then it may be necessary to configure in support

            for this in the kernel."

        # NOTE: does this require any other support ?

        cdl_option CYGDBG_KERNEL_DEBUG_GDB_THREAD_SUPPORT {

            display       "Include GDB multi-threading debug support"

            requires      CYGVAR_KERNEL_THREADS_LIST

            requires      CYGDBG_HAL_DEBUG_GDB_THREAD_SUPPORT

            default_value 1

            compile       debug/dbg_gdb.cxx

            description "

            This option enables some extra kernel code which is needed

            to support multi-threaded source level debugging."

        }

    }

    # ---------------------------------------------------------------------

    # Kernel API's. The C++ one is the default. A C API is optional.

    # Support for other languages is possible.

    cdl_component CYGPKG_KERNEL_API {

        display       "Kernel APIs"

        flavor        none

        description   "

            The eCos kernel is implemented in C++, so a C++ interface

            to the kernel is always available. There is also an optional

            C API. Additional API's may be provided in future versions."

        cdl_option CYGFUN_KERNEL_API_C {

            display       "Provide C API"

            default_value 1

            description   "

                The eCos kernel is implemented in C++, but there is an

                optional C API for use by application code. This C API can be

                disabled if the application code does not invoke the kernel

                directly, but instead uses higher level code such as the

                uITRON compatibility layer."

        }

    }

    define_proc {

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

        # Clients of pkgconf/kernel.h expects system.h to be included.

        puts $::cdl_header "#include "

        # FIXME: Some clients may rely on hal.h and infra.h being included.

        #        This should go away when any such client has been fixed.

        puts $::cdl_header "#include "

        puts $::cdl_header "#include "

        # Include HAL/Platform specifics

        puts $::cdl_header "#include CYGBLD_HAL_PLATFORM_H"

        # Fallback defaults (in case HAL didn't define these)

        puts $::cdl_header "#ifndef CYGNUM_HAL_RTC_NUMERATOR"

        puts $::cdl_header "# define CYGNUM_HAL_RTC_NUMERATOR     1000000000"

        puts $::cdl_header "# define CYGNUM_HAL_RTC_DENOMINATOR   100"

        puts $::cdl_header "# define CYGNUM_HAL_RTC_PERIOD        9999"

        puts $::cdl_header "#endif"

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

    }

    cdl_component CYGPKG_KERNEL_OPTIONS {

        display "Kernel build options"

        flavor  none

        description   "

            Package specific build options including control over

            compiler flags used only in building this package,

            and details of which tests are built."

        cdl_option CYGPKG_KERNEL_CFLAGS_ADD {

            display "Additional compiler flags"

            flavor  data

            no_define

            default_value { "" }

            description   "

                This option modifies the set of compiler flags for

                building the eCos kernel. These flags are used in addition

                to the set of global flags."

        }

        cdl_option CYGPKG_KERNEL_CFLAGS_REMOVE {

            display "Suppressed compiler flags"

            flavor  data

            no_define

            default_value { "" }

            description   "

                This option modifies the set of compiler flags for

                building the eCos kernel. These flags are removed from

                the set of global flags if present."

        }

        cdl_option CYGPKG_KERNEL_TESTS {

            display "Kernel tests"

            flavor  data

            no_define

            calculated {

                "tests/bin_sem0 tests/bin_sem1 tests/bin_sem2 tests/clock0 tests/clock1 tests/clockcnv tests/clocktruth tests/cnt_sem0 tests/cnt_sem1 tests/except1 tests/flag0 tests/flag1 tests/intr0 tests/kill tests/mbox1 tests/mqueue1 tests/mutex0 tests/mutex1 tests/mutex2 tests/mutex3 tests/release tests/sched1 tests/sync2 tests/sync3 tests/thread0 tests/thread1 tests/thread2"

                . ((CYGFUN_KERNEL_API_C) ? " tests/kclock0 tests/kclock1 tests/kexcept1 tests/kflag0 tests/kflag1 tests/kintr0 tests/klock tests/kmbox1 tests/kmutex0 tests/kmutex1 tests/kmutex3 tests/kmutex4 tests/ksched1 tests/ksem0 tests/ksem1 tests/kthread0 tests/kthread1 tests/stress_threads tests/thread_gdb tests/timeslice tests/tm_basic tests/fptest" : "")

                . ((!CYGPKG_INFRA_DEBUG && !CYGPKG_KERNEL_INSTRUMENT && CYGFUN_KERNEL_API_C) ? " tests/dhrystone" : "")

                . ((CYGPKG_KERNEL_SMP_SUPPORT && CYGFUN_KERNEL_API_C) ? " tests/smp" : "")

                . ((!CYGINT_HAL_TESTS_NO_CACHES && CYGFUN_KERNEL_API_C) ? " tests/kcache1 tests/kcache2" : "")

            }

            description   "

                This option specifies the set of tests for the eCos kernel."

        }

    }

}

# EOF kernel.cdl