objloader.cdl

开放源码实时操作系统源码.

# ====================================================================
#
#      objloader.cdl
#
#      Object loader configuration data
#
# ====================================================================
#####ECOSGPLCOPYRIGHTBEGIN####
## -------------------------------------------
## This file is part of eCos, the Embedded Configurable Operating System.
## Copyright (C) 2005 eCosCentric Ltd.
## Copyright (C) 2005 Andrew Lunn
##
## 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.
##
## -------------------------------------------
#####ECOSGPLCOPYRIGHTEND####
# ====================================================================
######DESCRIPTIONBEGIN####
#
# Author(s):      Anthony Tonizzo ([e-mail])
# Contributors:   Andrew Lunn
# Date:           2005-05-13
#
#####DESCRIPTIONEND####
#
# ====================================================================

cdl_package CYGPKG_OBJLOADER {
    display       "Object file loader"
    description   "This package provides support for loading and relocating 
                   object files within eCos."
    include_dir   cyg/objloader
    include_files elf.h objelf.h loader_fs.h relocate_ppc.h relocate_i386.h
    compile       objloader.c objelf.c loader_fs.c
    requires      CYGPKG_MEMALLOC
    requires      CYGPKG_IO_FILEIO
# ====================================================================

    cdl_component CYGPKG_SERVICES_OBJLOADER_ARCHITECTURE {
        display "Architecture dependent settings"
        flavor  none
        no_define
        requires CYGINT_SERVICES_OBJLOADER_RELOCATOR == 1

        description   "Each of the options here enables the correct
                       relocation support for the architectures supported."

        cdl_interface CYGINT_SERVICES_OBJLOADER_RELOCATOR {
            display "Suitable function to perform a symbol relocation"
            description "
                For each architecture we need a function which relocate
                a symbol. If we don't have a relocator the loader
                cannot work."
        }

        cdl_option CYGBLD_OBJLOADER_ARCHITECTURE_POWERPC {
           display       "Support loading on PowerPC processors"
           calculated    CYGPKG_HAL_POWERPC
           implements    CYGINT_SERVICES_OBJLOADER_RELOCATOR
           define_proc {
               puts $::cdl_header "#include <cyg/objloader/relocate_ppc.h>"
           }
           compile relocate_ppc.c
        }

        cdl_option CYGBLD_OBJLOADER_ARCHITECTURE_I386 {
           display       "Support loading on I386 processors"
           calculated    CYGPKG_HAL_I386 || CYGPKG_HAL_SYNTH_I386
           implements    CYGINT_SERVICES_OBJLOADER_RELOCATOR
           define_proc {
               puts $::cdl_header "#include <cyg/objloader/relocate_i386.h>"
           }
           compile relocate_i386.c
        }

#        cdl_option CYGBLD_OBJLOADER_ARCHITECTURE_ARM {
#            display       "Support loading on ARM processors"
#            calculated    CYGPKG_HAL_ARM
#            define_proc {
#               puts $::cdl_header "#include <cyg/objloader/relocate_arm.h>"
#            }
#            compile relocate_arm.c
#        }
        
    }
 
    cdl_option CYGPKG_SERVICES_OBJLOADER_DEBUG_LEVEL {
        display          "Verbosity of debug output"
        flavor           data
        legal_values     0 1 2
        default_value    0
        description      "This option allows controls over the verbosity of
                         the debug output. 1 is moderate, 2 is very
                         verbose, including the symbol name of each relocation
                         performed. Any value other than 0 will prevent the
                         unloading of unused library data, thus increasing the
                         heap memory requirements of the package."
    }
   
    cdl_component CYGPKG_SERVICES_OBJLOADER_OPTIONS {
        display "Object loader 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_SERVICES_OBJLOADER_CFLAGS_ADD {
            display "Additional compiler flags"
            flavor  data
            no_define
            default_value { "" }
            description   "
                This option modifies the set of compiler flags for
                building the serial device drivers. These flags are
                used in addition to the set of global flags."
        }

        cdl_option CYGPKG_SERVICES_OBJLOADER_CFLAGS_REMOVE {
            display "Suppressed compiler flags"
            flavor  data
            no_define
            default_value { "" }
            description   "
                This option modifies the set of compiler flags for
                building the serial device drivers. These flags are
                removed from the set of global flags if present."
        }
    }

    cdl_component CYGTST_SERVICES_OBJLOADER_BUILD_TESTS {
        display       "Build test library"
        default_value 0
        active_if     CYGPKG_FS_ROM
        active_if     CYGINT_SERVICES_OBJLOADER_RELOCATOR
        requires      CYGBLD_FS_ROMFS_MK_ROMFS
        no_define
        description   "
            This option enables the building of a library and an
            application for testing the loader." 
        
        make -priority 320 {
            tests/testromfs/hello.o : <PACKAGE>/tests/library/hello.c
            @sh -c "mkdir -p tests tests/testromfs"
            $(CC) -c $(INCLUDE_PATH) -I$(dir $<) $(CFLAGS) -o $@ $<
        }

        make -priority 322 {
            <PREFIX>/include/cyg/objloader/testromfs_be.h : tests/testromfs/hello.o 
            $(PREFIX)/bin/mk_romfs -b tests/testromfs testromfs_be.bin 
	    @mkdir -p "$(dir $@)"
            @sh $(PREFIX)/bin/file2c.tcl testromfs_be.bin testromfs_be.h
            @cp testromfs_be.h $@
        }
        
        make -priority 322 {
            <PREFIX>/include/cyg/objloader/testromfs_le.h : tests/testromfs/hello.o 
            $(PREFIX)/bin/mk_romfs tests/testromfs testromfs_le.bin
	    @mkdir -p "$(dir $@)"
            @sh $(PREFIX)/bin/file2c.tcl testromfs_le.bin testromfs_le.h
            @cp testromfs_le.h $@
        }
    
        cdl_option CYGPKG_OBJLOADER_TESTS {
            display     "Objloader tests"
            flavor      data
            no_define
            calculated  { "tests/test_mods" }
            description "
                This option specifies the set of tests for the object
                loader package"
       }
    }
}

# ====================================================================
# EOF objloader.cdl