hal_sparclite_sleb.cdl

eCos操作系统源码

# ====================================================================
#
#      hal_sparclite_sleb.cdl
#
#      SPARClite/SLEB target HAL package 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):      jskov
# Original data:  hmt
# Contributors:
# Date:           1999-11-01
#
#####DESCRIPTIONEND####
#
# ====================================================================

cdl_package CYGPKG_HAL_SPARCLITE_SLEB {
    display  "SPARClite MB8683x evaluation board"
    parent        CYGPKG_HAL_SPARCLITE
    define_header hal_sparclite_sleb.h
    include_dir   cyg/hal
    description   "
        The SPARClite evaluation board HAL package is provided for use
        with the Fujitsu MB8683x boards."

    compile       hal_priv.c hal_cygm.S hal_diag.c

    define_proc {
        puts $::cdl_system_header "#define CYGBLD_HAL_TARGET_H   <pkgconf/hal_sparclite.h>"
        puts $::cdl_system_header "#define CYGBLD_HAL_PLATFORM_H <pkgconf/hal_sparclite_sleb.h>"
	puts $::cdl_header "#define CYGHWR_HAL_SPARCLITE_HAS_ASR17 /* true for SLEBs */"
    }

    cdl_component CYG_HAL_STARTUP {
        display       "Startup type"
        flavor        data
        legal_values  {"RAM" "ROM"}
        default_value {"RAM"}
	no_define
	define -file system.h CYG_HAL_STARTUP
        description   "
           When targetting the SPARClite Evaluation Board it is possible to
           build the system for either RAM bootstrap or ROM bootstrap. The
           former generally requires that the board is equipped with ROMs
           containing the Cygmon ROM monitor or equivalent software that
           allows gdb to download the eCos application on to the board. The
           latter typically requires that the eCos application be blown
           into EPROMs or equivalent technology."
    }

    cdl_option CYGHWR_HAL_SPARCLITE_MULTIPLE_VECTOR_TRAPPING {
        display       "Multiple vector trapping (MVT)"
        default_value 0
        description   "
            Use Multiple Vector Trapping (MVT) rather than Single Vector
            Trapping (SVT); SVT is a feature of SPARClite CPUs which saves
            code RAM at a cost of perhaps slower interrupt and trap dispatch
            time, depending on cache behavior.  This includes speed of
            handling register window underflow and overflow, a feature of
            deep function call stacks on SPARC.  MVT requires 4kB of code
            space for trap vectors; in contrast SVT uses fewer than 20
            instructions for trap decoding."
    }

    cdl_option CYGIMP_HAL_SPARCLITE_COPY_VECTORS_TO_RAM {
        display       "Copy vectors to RAM"
        default_value 0
        description   "
            Copy the vectors and trap code out of the executable image
            to separate RAM.  With ROM startup, performance might be gained
            by copying the vectors into RAM; this includes the code for
            handling register window under/overflow.  Enable this with
            RAM startup to simulate the code and data sizes of an eventual
            ROM image.  Note: if MVT is not selected with ROM start, the
            trap code (including register window handling) is copied
            to RAM regardless; that code is small."
    }


    cdl_component CYG_HAL_USE_ROM_MONITOR_CYGMON {
        display       "Use ROM monitor CygMon"
        default_value 1
        active_if     { CYG_HAL_STARTUP == "RAM" }
        description   "
            This is defined by default to allow interworking with
            CygMon and thus GDB so that Breakpoints and ^C interrupts
            and the like work.  Disable it if building to run with the
            native Fujitsu boot proms (NOT CYGMON) ie. a
            load-and-go type startup by means of
             (gdb) target sparclite udp sleb0
            or
             (gdb) target sparclite serial /dev/ttyS0
            as opposed to the CygMon way:
             (gdb) set remotebaud 19200
             (gdb) target remote /dev/ttyS0
            Such builds will load-and-go when using CygMon, but
            load-and-go is all the interaction you get."
    
        cdl_option CYG_KERNEL_DIAG_GDB {
            display       "Output diag strings as \$O packets"
            default_value 1
            description   "
                If using CygMon it's generally helpful to wrap output
                characters in the GDB protocol as \$O packets; This
                option enables this by means of calling into CygMon
                through the vectors provided; this therefore also
                works with eg. ethernet debugging.

                Disable this option and output goes direct, in clear,
                to serial port 0 (CON1)."
        }

        cdl_option CYG_KERNEL_DIAG_GDB_SERIAL_DIRECT {
            display       "Output diag strings as \$O packets on serial"
            active_if     CYG_KERNEL_DIAG_GDB
            default_value 0
            description   "
                However, you might want to force GDB-encoded output to
                the serial port NOT using CygMon to perform the
                formatting; this is really only here as a debugging
                option, in case GDB is behaving oddly.  Enable this
                option to make GDB \$O packets come out the serial port
                (CON1)"
        }
    }

    # Real-time clock/counter specifics
    cdl_component CYGNUM_HAL_RTC_CONSTANTS {
        display       "Real-time clock constants."
        flavor        none
    
        cdl_option CYGNUM_HAL_RTC_NUMERATOR {
            display       "Real-time clock numerator"
            flavor        data
            default_value 1000000000
        }
        cdl_option CYGNUM_HAL_RTC_DENOMINATOR {
            display       "Real-time clock denominator"
            flavor        data
            default_value 100
        }
        cdl_option CYGNUM_HAL_RTC_PERIOD {
            display       "Real-time clock period"
            flavor        data
            default_value 9999
        }
    }

    cdl_component CYGBLD_GLOBAL_OPTIONS {
        display "Global build options"
        flavor  none
        description   "
	    Global build options including control over
	    compiler flags, linker flags and choice of toolchain."


        parent  CYGPKG_NONE

        cdl_option CYGBLD_GLOBAL_COMMAND_PREFIX {
            display "Global command prefix"
            flavor  data
            no_define
            default_value { "sparclite-elf" }
            description "
                This option specifies the command prefix used when
                invoking the build tools."
        }

        cdl_option CYGBLD_GLOBAL_CFLAGS {
            display "Global compiler flags"
            flavor  data
            no_define
            default_value { "-msoft-float -mcpu=sparclite -Wall -Wpointer-arith -Wstrict-prototypes -Winline -Wundef -Woverloaded-virtual -g -O2 -ffunction-sections -fdata-sections -fno-rtti -fno-exceptions -fvtable-gc -finit-priority" }
            description   "
                This option controls the global compiler flags which
                are used to compile all packages by
                default. Individual packages may define
                options which override these global flags."
        }

        cdl_option CYGBLD_GLOBAL_LDFLAGS {
            display "Global linker flags"
            flavor  data
            no_define
            default_value { "-msoft-float -mcpu=sparclite -g -nostdlib -Wl,--gc-sections -Wl,-static" }
            description   "
                This option controls the global linker flags. Individual
                packages may define options which override these global flags."
        }
    }

    cdl_component CYGPKG_HAL_SPARCLITE_SLEB_OPTIONS {
        display "SPARClite MB8683x 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_HAL_SPARCLITE_SLEB_CFLAGS_ADD {
            display "Additional compiler flags"
            flavor  data
            no_define
            default_value { "" }
            description   "
                This option modifies the set of compiler flags for
                building the SPARClite MB8683x HAL. These flags are used in addition
                to the set of global flags."
        }

        cdl_option CYGPKG_HAL_SPARCLITE_SLEB_CFLAGS_REMOVE {
            display "Suppressed compiler flags"
            flavor  data
            no_define
            default_value { "" }
            description   "
                This option modifies the set of compiler flags for
                building the SPARClite MB8683x HAL. These flags are removed from
                the set of global flags if present."
        }

        cdl_option CYGPKG_HAL_SPARCLITE_SLEB_TESTS {
            display "SPARClite MB8683x tests"
            flavor  data
            no_define
            calculated { "tests/slebstak tests/slebintr tests/slebtime" }
            description   "
                This option specifies the set of tests for the SPARClite MB8683x HAL."
        }
    }

    cdl_component CYGHWR_MEMORY_LAYOUT {
        display "Memory layout"
        flavor data
        no_define
        calculated { CYG_HAL_STARTUP == "RAM" ? "sparclite_sleb_ram" : \
                                                "sparclite_sleb_rom" }

        cdl_option CYGHWR_MEMORY_LAYOUT_LDI {
            display "Memory layout linker script fragment"
            flavor data
            no_define
            define -file system.h CYGHWR_MEMORY_LAYOUT_LDI
            calculated { CYG_HAL_STARTUP == "RAM" ? "<pkgconf/mlt_sparclite_sleb_ram.ldi>" : \
                                                    "<pkgconf/mlt_sparclite_sleb_rom.ldi>" }
        }

        cdl_option CYGHWR_MEMORY_LAYOUT_H {
            display "Memory layout header file"
            flavor data
            no_define
            define -file system.h CYGHWR_MEMORY_LAYOUT_H
            calculated { CYG_HAL_STARTUP == "RAM" ? "<pkgconf/mlt_sparclite_sleb_ram.h>" : \
                                                     "<pkgconf/mlt_sparclite_sleb_rom.h>" }
        }
    }
}