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# ====================================================================
#
#      loader.cdl
#
#      Dynamic loader configuration data
#
# ====================================================================
#####ECOSGPLCOPYRIGHTBEGIN####
## -------------------------------------------
## This file is part of eCos, the Embedded Configurable Operating System.
## Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
##
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## or inline functions from this file, or you compile this file and link it
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#####ECOSGPLCOPYRIGHTEND####
# ====================================================================
######DESCRIPTIONBEGIN####
#
# Author(s):      nickg
# Contributors:
# Date:           2000-11-20
#
#####DESCRIPTIONEND####
#
# ====================================================================

cdl_package CYGPKG_LOADER {
    display       "Dynamic loader"
    description   "
                  This package provides support for dynamic code loading."
    include_dir   cyg/loader
    compile       loader.cxx dload.cxx

    requires      { CYGBLD_ISO_DLFCN_HEADER == "<cyg/loader/dlfcn.h>" }
    implements    CYGINT_ISO_DLFCN
    
# ====================================================================

    cdl_component CYGPKG_LOADER_OPTIONS {
        display "Common memory allocator package build options"
        flavor  none
        no_define
        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_LOADER_CFLAGS_ADD {
            display "Additional compiler flags"
            flavor  data
            no_define
            default_value { "" }
            description   "
                This option modifies the set of compiler flags for
                building this package. These flags are used in addition
                to the set of global flags."
        }

        cdl_option CYGPKG_LOADER_CFLAGS_REMOVE {
            display "Suppressed compiler flags"
            flavor  data
            no_define
            default_value { "-O2 -fvtable-gc" }
            description   "
                This option modifies the set of compiler flags for
                building this package. These flags are removed from
                the set of global flags if present."
        }

        cdl_option CYGPKG_LOADER_LDFLAGS_ADD {
            display "Additional compiler flags"
            flavor  data
            no_define
#            default_value { "-L$(PREFIX)/lib -ldlforce" }
            default_value { "" }
            description   "
                This option modifies the set of compiler flags for
                building this package. These flags are used in addition
                to the set of global flags."
        }

        cdl_option CYGPKG_LOADER_LDFLAGS_REMOVE {
            display "Suppressed compiler flags"
            flavor  data
            no_define
            default_value { "-Wl,-static -Wl,--gc-sections" }
            description   "
                This option modifies the set of compiler flags for
                building this package. These flags are removed from
                the set of global flags if present."
        }
        
    }

# ====================================================================
# Dynamic library build options

    cdl_option CYGBLD_LOADER_DYNAMIC_LD {
        display    "Build linker script for dynamic libraries"
        flavor     bool
        default_value 1
        description "Build a linker script for creating dynamic libraries"

        make -priority 50 {
            <PREFIX>/lib/dynamic.ld: <PACKAGE>/src/dynamic.ld
            $(CC) -E -P -Wp,-MD,dynamic.tmp -DEXTRAS=1 -xc $(INCLUDE_PATH) $(CFLAGS) -o $@ $<
            @echo $@ ": \\" > $(notdir $@).deps
            @tail +2 dynamic.tmp >> $(notdir $@).deps
            @echo >> $(notdir $@).deps
            @rm dynamic.tmp

        }
    }

    cdl_option CYGBLD_LOADER_CRTBEGINS {
        display "Build special crtbeginS.o for dynamic libraries"
        flavor   bool
        default_value 1

        make -priority 110 {
        <PREFIX>/lib/crtbeginS.o : <PACKAGE>/src/crtbeginS.c
        $(CC) -Wp,-MD,crtbeginS.tmp $(INCLUDE_PATH) -g0 -Wall -finhibit-size-directive -fno-inline-functions -fno-exceptions -c -o $@ $<            
        @echo $@ ": \\" > $(notdir $@).deps
        @tail +2 crtbeginS.tmp >> $(notdir $@).deps
        @echo >> $(notdir $@).deps
        @rm crtbeginS.tmp
        }
    }

    cdl_option CYGBLD_LOADER_CRTENDS {
        display "Build special crtendS.o for dynamic libraries"
        flavor   bool
        default_value 1

        make -priority 110 {
        <PREFIX>/lib/crtendS.o : <PACKAGE>/src/crtendS.c
        $(CC) -Wp,-MD,crtendS.tmp $(INCLUDE_PATH) -g0 -Wall -finhibit-size-directive -fno-inline-functions -fno-exceptions -c -o $@ $<      
        @echo $@ ": \\" > $(notdir $@).deps
        @tail +2 crtendS.tmp >> $(notdir $@).deps
        @echo >> $(notdir $@).deps
        @rm crtendS.tmp
        }
    }
    
    cdl_option CYGBLD_LOADER_DLFORCE_LIB {
        display    "Build dynamic load library"
        flavor     bool
        default_value 1
        description "Build a shared library that is to be linked with the executable
                     to force it to be built in such a way that it is suitable for
                     having some other shared library load against it. This is the
                     most portable way of achieving this."

        make -priority 160 {
            <PREFIX>/lib/libdlforce.so : <PACKAGE>/src/dlforce.c
                    $(CC) $(CFLAGS) -Wp,-MD,dlforce.tmp $(INCLUDE_PATH) -shared -c -o src/dlforce.o $<
                    $(CC) -g -nostdlib -L$(PREFIX)/lib -shared -Tdynamic.ld -o $@ $(PREFIX)/lib/crtbeginS.o src/dlforce.o $(PREFIX)/lib/crtendS.o
                    @echo $@ ": \\" > $(notdir $@).deps
                    @tail +2 dlforce.tmp >> $(notdir $@).deps
                    @echo >> $(notdir $@).deps
                    @rm dlforce.tmp
        }
    }
    
# ====================================================================
# Tests


    cdl_option CYGBLD_LOADER_TEST_FOO_LIB {
        display    "Build a dynamic load library"
        flavor     bool
        default_value 1
        description "Build a shared library for testing."

        make {
            tests/libfoo.so : <PACKAGE>/tests/foo.c
                    mkdir -p tests
                    $(CC) $(CFLAGS) -Wp,-MD,foo.tmp $(INCLUDE_PATH) -shared -c -o tests/foo.o $<
                    $(CC) $(LDFLAGS) -L$(PREFIX)/lib -shared -Tdynamic.ld -o $@ $(PREFIX)/lib/crtbeginS.o tests/foo.o $(PREFIX)/lib/crtendS.o
                    @echo $@ ": \\" > $(notdir $@).deps
                    @tail +2 foo.tmp >> $(notdir $@).deps
                    @echo >> $(notdir $@).deps
                    @rm foo.tmp
                    cc -o entable $(REPOSITORY)/$(PACKAGE)/tests/entable.c
                    ./entable libfoo <tests/libfoo.so >tests/libfoo.so.c
        }
    }

    cdl_option CYGBLD_LOADER_TEST_LOADFOO {
        display   "Build library load test program"
        flavor    bool
        default_value 1
        description "Build a test program that will load the test shared library"

        make {
            <PREFIX>/tests/services/loader/current/tests/loadfoo : <PACKAGE>/tests/loadfoo.cxx
                    mkdir -p $(PREFIX)/tests/services/loader/current/tests
                    $(CC) $(CFLAGS) -Wp,-MD,loadfoo.tmp $(INCLUDE_PATH) -c -o tests/loadfoo.o $< 
#                   $(CC) $(LDFLAGS) -L$(PREFIX)/lib -Ttarget.ld -ldlforce -o $@ $(PREFIX)/lib/crtbeginS.o tests/loadfoo.o $(PREFIX)/lib/crtendS.o
                    $(CC) $(LDFLAGS) -Wl,-E -L$(PREFIX)/lib -Ttarget.ld -ldlforce -o $@ tests/loadfoo.o
                    @echo $@ ": \\" > $(notdir $@).deps
                    @tail +2 loadfoo.tmp >> $(notdir $@).deps
                    @echo >> $(notdir $@).deps
                    @rm loadfoo.tmp
            
        }
    }
    
#    cdl_option CYGPKG_LOADER_TESTS {
#       display "Tests"
#       flavor  data
#       no_define
#       calculated { "tests/loadfoo" }
#       description   "
#                      This option specifies the set of tests for this package."
#    }
    
}

# ====================================================================
# EOF loader.cdl