PR ada/24533

[pf3gnuchains/gcc-fork.git] / gcc / ada / ChangeLog

2006-01-20  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR ada/24533
        * s-osinte-linux-hppa.ads: Reduce alignment of atomic_lock_t to 8.

2005-12-28  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * s-osinte-linux-hppa.ads: Correct alignment of atomic_lock_t.

2005-12-12  Arnaud Charlet  <charlet@adacore.com>

        * Makefile.in: Remove dummy setting of GCC_FOR_TARGET, no longer
        needed.

2005-12-12  Arnaud Charlet  <charlet@adacore.com>

        * Make-lang.in: Update dependencies

2005-12-12  Arnaud Charlet  <charlet@adacore.com>

        * Make-lang.in: Add rule for ada/exp_sel.o

2005-12-12  Arnaud Charlet  <charlet@adacore.com>

        * Makefile.in (mingw section): Remove EH_MECHANISM setting.

2005-12-09  Arnaud Charlet  <charlet@adacore.com>

        * gnatvsn.ads (Library_Version): Bump to version 4.2
        (ASIS_Version_Number): Bumped.

2005-12-09  Doug Rupp  <rupp@adacore.com>

        * mlib-tgt-vms-ia64.adb, mlib-tgt-vms-alpha.adb (Is_Interface): Change
        Ada bind file prefix on VMS from b$ to b__.
        (Build_Dynamic_Library): Change Init file suffix on VMS from $init to
        __init.

        * prj-nmsc.adb: Change some Hostparm.OpenVMS checks to
        Targparm.OpenVMS_On_Target.
        (Object_Suffix): Initialize with target object suffix.
        (Get_Unit): Change Ada bind file prefix on VMS from b$ to b__.

        * butil.adb: Change some Hostparm.OpenVMS checks to
        Targparm.OpenVMS_On_Target.

        * clean.adb: Change some Hostparm.OpenVMS checks to
        Targparm.OpenVMS_On_Target.
        (Object_Suffix): Initialize with call to Get_Target_Object_Suffix.
        ({declaraction},Delete_Binder_Generated_Files,{initialization}): Change
        Ada bind file prefix on VMS from b$ to b__.

        * gnatlink.adb (Process_Args): Call Add_Src_Search_Dir for -I in
        --GCC so that Get_Target_Parameters can find system.ads.
        (Gnatlink): Call Get_Target_Parameters in mainline.
        Initialize standard packages for Targparm.
        Change some Hostparm.OpenVMS checks to Targparm.OpenVMS_On_Target.
        (Process_Args): Also Check for object files with target object
        extension.
        (Make_Binder_File_Names): Create with target object extension.
        (Make_Binder_File_Names): Change Ada bind file prefix on VMS from b$
        to b__.

        * mlib-prj.adb: Change some Hostparm.OpenVMS checks to
        Targparm.OpenVMS_On_Target.
        ({declaration},Build_Library,Check_Library): Change Ada bind file
        prefix on VMS from b$ to b__.

        * osint-b.adb: Change some Hostparm.OpenVMS checks to
        Targparm.OpenVMS_On_Target.
        (Create_Binder_Output): Change Ada bind file prefix on VMS from b$ to
        b__.

        * targext.c: New file.

        * Makefile.in: add support for vxworks653 builds
        (../../vxaddr2line): gnatlink with targext.o.
        (TOOLS_LIBS): Move targext.o to precede libgnat.
        (init.o, initialize.o): Minor clean up in dependencies.
        (GNATLINK_OBJS): Add targparm.o, snames.o
        Add rules fo building targext.o and linking it explicitly with all
        tools.
        Also add targext.o to gnatlib.

        * Make-lang.in: Add rules for building targext.o and linking it in
        with gnat1 and gnatbind.
        Add entry for exp_sel.o.

        * osint.adb Change some Hostparm.OpenVMS checks to
        Targparm.OpenVMS_On_Target.
        (Object_File_Name): Use target object suffix.

        * osint.ads (Object_Suffix): Remove, no longer used.
        (Target_Object_Suffix): Initialize with target object suffix.

        * rident.ads: Add special exception to license.

        * targparm.adb (Get_Target_Parameters): Set the value of
        Multi_Unit_Index_Character after OpenVMS_On_Target gets its definitive
        value.
        (Get_Target_Parameters): Set OpenVMS_On_Target if openvms.
        
        * targparm.ads: Add special exception to license.

        * g-os_lib.ads, g-os_lib.adb (Get_Target_Debuggable_Suffix): New
        function.
        (Copy_File): Make sure from file is closed if error on to file
        (Get_Target_Executable_Suffix, Get_Target_Object_Suffix): New functions.

        * make.adb (Object_Suffix): Intialize with Get_Target_Object_Suffix.
        (Executable_Suffix): Intialize with Get_Target_Executable_Suffix.

        * osint-c.adb (Set_Output_Object_File_Name): Initialize extension with
        target object suffix.

2005-12-09  Jose Ruiz  <ruiz@adacore.com>
            Quentin Ochem  <ochem@adacore.com>
            Florian Villoing  <villoing@adacore.com>

        * a-taster.ads, a-taster.adb: New files.

        * a-elchha.adb (Last_Chance_Handler): Change the task termination soft
        link to the version that does nothing. This way the task termination
        routine is not executed twice for the environment task when finishing
        because of an unhandled exception.

        * a-exextr.adb (Notify_Unhandled_Exception): Call the task termination
        handler because of an unhandled exception.

        * a-taside.adb (Abort_Tasks): Call the Abort_Tasks procedure from
        System.Tasking.Utilities instead of that in System.Tasking.Stages.

        * s-finimp.adb (initialization code): Modify the soft link for the
        finalization of the global list instead of Adafinal.

        * s-soflin.ads, s-soflin.adb (Task_Termination_NT): Add this
        non-tasking version of the soft link for task termination. We do
        nothing since if we are using the non-tasking version it
        means that the task termination functionality is not used.
        (Null_Finalize_Global_List): Add this null version for the procedure
        in charge of finalizing the global list for controlled objects.
        (Null_Adafinal): Remove this procedure. Adafinal_NT has been created
        instead for handling run-time termination in a more flexible way.
        (Adafinal_NT): This new procedure will take care of finalizing the
        global list for controlled objects if needed, but no tasking
        finalization.

        * s-tarest.adb (Task_Lock): Do not try to lock again the
        Global_Task_Lock if we already own it. Otherwise, we get blocked in
        some run-time operations.
        (Task_Unlock): Do not try to actually unlock the Global_Task_Lock
        until all nested locks have been released.
        (Task_Wrapper): Call the fall-back task termination handler. It
        applies to all tasks but the environment task.
        (Finalize_Global_Tasks): Add the call for the task termination
        procedure for the environment task.
        (Task_Wrapper): suppress warnings around declaration of
        Secondary_Stack_Address.

        * s-tasini.adb (Final_Task_Unlock): Global_Task_Lock_Nesting has been
        moved to the Common_ATCB record.
        (Task_Lock): Global_Task_Lock_Nesting has been moved to the
        Common_ATCB record.
        (Task_Unlock): Global_Task_Lock_Nesting has been moved to the
        Common_ATCB record.

        * s-taskin.adb (Initialize_ATCB): Initialize Global_Task_Lock_Nesting,
        Fall_Back_Handler, and Specific_Handler.

        * s-taskin.ads (Cause_Of_Termination): Redefine this type here, already
        defined in Ada.Task_Termination, to avoid circular dependencies.
        (Termination_Handler): Redefine this type here, alredy defined in
        Ada.Task_Termination, for avoiding circular dependencies.
        (Common_ATCB): Add the Fall_Back_Handler and Specific_Handler required
        for storing task termination handlers. In addition,
        Global_Task_Lock_Nesting has been moved from Ada_Task_Control_Block to
        Common_ATCB because it is used by both the regular and the restricted
        run times.
        (Ada_Task_Control_Block): Move Global_Task_Lock_Nesting from here to
        Common_ATCB because it is used by both the regular and the restricted
        run times.
        (Common_ATCB): Added a dynamic task analyzer field.

        * s-tassta.adb (Abort_Tasks): Move the code in charge of checking
        potentially blocking operations to System.Tasking.Utilities.Abort_Tasks.
        (Task_Wrapper): Call the task termination handler. It applies to all
        tasks but the environment task.
        (Finalize_Global_Tasks): Call the task termination procedure for the
        environment task. The call to Finalize_Global_List is now performed
        using the soft links mechanism.
        (Task_Wrapper): added dynamic stack analysis.

        * s-tasuti.adb (Abort_Tasks): The code in charge of checking
        potentially blocking operations has been moved from
        System.Tasking.Stages.Abort_Tasks to this procedure. There can be
        direct calls to System.Tasking.Utilities.Abort_Tasks that do not pass
        through System.Tasking.Stages.Abort_Tasks, and we do not want to miss
        this run-time check.

        * s-solita.adb (Task_Termination_Handler_T): Add this task-safe version
        of task termination procedure.
        (Init_Tasking_Soft_Links): Install the task-safe version of the soft
        link for the task termination procedure.

        * bindusg.adb: (Bindusg): Added documentation for -u option.

        * bindgen.adb (Get_Main_Ada) Added handling of dynamic stack analysis.
        (Get_Main_C): Add handling of dynamic stack analysis.
        (Gen_Output_File_C): Add external functions for dynamic stack analysis.

        * Makefile.rtl: Add entry for a-taster (Ada.Task_Termination).
        (GNATRTL_NONTASKING_OBJS) Added entries for dynamic stack analysis
        (GNATRTL_NONTASKING_OBJS): Add AltiVec files.

        * opt.ads: Added flags used by dynamic stack measurement.
        (Max_Line_Length): Remove (not used anymore)

        * s-io.ads, s-io.adb (Standard_Error): new subprogram
        (Standart_Output): new subprogram
        (Set_Output): new subprogram
        (Put): now uses the value of Current_Out to know if the output has to be
        send to stderr or stdout.
        
        * s-stausa.ads: Complete implementation.

        * switch-b.adb: Added handling of -u switch for dynamic stack analysis.
        
        * impunit.adb (Non_Imp_File_Names_05): Add Ada.Task_Termination to the
        list of Ada 05 files.
        (GNAT Library Units): Add AltiVec files.

        * g-allein.ads, g-alleve.adb, g-alleve.ads, g-altcon.adb,
        g-altcon.ads, g-altive.ads, g-alveop.adb, g-alveop.ads
        g-alvety.ads, g-alvevi.ads: New files providing altivec API.

2005-12-09  Nicolas Setton  <setton@adacore.com>

        * adaint.c (__gnat_locate_regular_file): Return immediately if
        file_name is empty.

2005-12-09  Javier Miranda  <miranda@adacore.com>
            Hristian Kirtchev  <kirtchev@adacore.com>

        * a-tags.ads, a-tags.adb (Offset_To_Top): Moved from the package body
        to the specification because the frontend generates code that uses this
        subprogram.
        (Set_Interface_Table): Add missing assertion.
        Update documentation describing the run-time structure.
        (Displace): New subprogram that displaces the pointer to the object
        to reference one of its secondary dispatch tables.
        (IW_Membership): Modified to use the new table of interfaces.
        (Inherit_TSD): Modified to use the new table of interfaces.
        (Register_Interface_Tag): Use the additional formal to fill the
        contents of the new table of interfaces.
        (Set_Interface_Table): New subprogram that stores in the TSD the
        pointer to the table of interfaces.
        (Set_Offset_To_Top): Use the additional formal to save copy of
        the offset value in the table of interfaces.
        Update structure of GNAT Primary and Secondary dispatch table diagram.
        Add comment section on GNAT dispatch table prologue.
        (Offset_To_Signature): Update the constant value of the Signature field.
        (Dispatch_Table): Update comment on hidden fields in the prologue.
        (Get_Entry_Index, Get_Prim_Op_Kind, Get_Offset_Index, OSD,
        Set_Entry_Index, Set_Offset_Index, Set_Prim_Op_Kind, SSD, TSD): Change
        the type of formal parameter T to Tag, introduce additional assertions.
        (Get_Num_Prim_Ops, Set_Num_Prim_Ops): Remove an unnecessary type
        conversion.
        (Get_Tagged_Kind, Set_Tagged_Kind): New bodies.

        * exp_ch6.adb (Register_Interface_DT_Entry): Remove the Thunk_Id actual
        in all the calls to Expand_Interface_Thunk. Instead of referencing the
        record component containing the tag of the secondary dispatch table we
        have to use the Offset_To_Top run-time function to get this information;
        otherwise if the pointer to the base of the object has been displace
        we get a wrong value if we use the 'position attribute.

        * exp_disp.adb (Expand_Interface_Thunk): Remove the Thunk_Id actual in
        all the calls to Expand_Interface_Thunk.
        (Make_Secondary_DT): Secondary dispatch tables do not have a table of
        interfaces; hence the call to Set_Interface_Table was clearly wrong.
        (Collect_All_Interfaces): Modify the internal subprogram Collect to
        ensure that the interfaces implemented by the ancestors are placed
        at the header of the generated list.
        (Expand_Interface_Conversion): Handle the case in which the displacement
        associated with the interface conversion is not statically known. In
        this case we generate a call to the new run-time subprogram Displace.
        (Make_DT): Generate and fill the new table of interfaces.
        (Ada_Actions, Action_Is_Proc, Action_Nb_Arg): Add entries for
        Get_Tagged_Kind and Set_Tagged_Kind.
        (Tagged_Kind): New function that determines the tagged kind of a type
        with respect to limitedness and concurrency and returns a reference to
        RE_Tagged_Kind.
        (Make_Disp_Asynchronous_Select_Body, Make_Disp_Conditional_Select_Body,
        Make_Disp_Timed_Select_Body): Correctly retrieve the pointer to the
        primary dispatch table for a type.
        (Make_DT, Make_Secondary_DT): Set the tagged kind in the primary and
        secondary dispatch table respectively of a tagged type.

        * exp_disp.ads (Expand_Interface_Thunk): Remove Thunk_Id formal.
        (Expand_Interface_Conversion): New subprogram to indicate if the
        displacement of the type conversion is statically known.
        (DT_Access_Action): Add values Get_Tagged_Kind and Set_Tagged_Kind.

        * rtsfind.ads (RE_Offset_To_Top): New entity
        (RTU_Id): Add Ada_Task_Termination to the list so that it is made
        accessible to users.
        (Re_Displace): New entity
        (RE_Interface_Data): New entity
        (RE_Set_Interface_Data): New_Entity
        (RE_Id, RE_Unit_Table): Add entry for RE_Get_Tagged_Kind,
        Set_Tagged_Kind, RE_Tagged_Kind, RE_TK_Abstract_Limited_Tagged,
        RE_TK_Abstract_Tagged, RE_TK_Limited_Tagged, RE_TK_Protected,
        RE_TK_Tagged, RE_TK_Task.

        * exp_ch3.adb (Init_Secondary_Tags): Modify the subprogram
        Init_Secondary_Tags_Internal to allow its use with interface types and
        also to generate the code for the new additional actual required
        by Set_Offset_To_Top.
        (Build_Init_Statements): In case of components associated with abstract
        interface types there is no need to generate a call to its IP.
        (Freeze_Record_Type): Generate Select Specific Data tables only for
        concurrent types.
        (Make_Predefined_Primitive_Specs, Predefined_Primitive_Bodies): Generate
        the bodies and specifications of the predefined primitive operations
        dealing with dispatching selects and abort, 'Callable, 'Terminated only
        for concurrent types.

        * exp_sel.ads, exp_sel.adb: New files.

        * exp_ch9.adb (Build_Protected_Entry, Expand_N_Protected_Body,
        Expand_N_Protected_Type_Declaration, Make_Initialize_Protection): Handle
        properly protected objects and attach handler in the case of the
        restricted profile.
        Move embeded package Select_Expansion_Utilities into a separate external
        package.
        (Expand_N_Asynchronous_Select, Expand_N_Conditional_Select,
        Expand_N_Timed_Entry_Call): Correct calls external package Exp_Sel.
        (Build_K, Build_S_Assignment): New subprograms, part of the select
        expansion utilities.
        (Expand_N_Asynchronous_Select, Expand_N_Conditional_Entry_Call,
        Expand_N_Timed_Entry_Call): Optimize expansion of select statements
        where the trigger is a dispatching procedure of a limited tagged type.

2005-12-09  Olivier Hainque  <hainque@adacore.com>

        * decl.c (gnat_to_gnu_entity, renaming object case): Don't early expand
        pointer initialization values. Make a SAVE_EXPR instead. Add comments
        about the use and expansion of SAVE_EXPRs in the various possible
        renaming handling cases.
        (components_to_record, compare_field_bitpos): Sort by DECL_UID, not by
        abusing DECL_FCONTEXT.

2005-12-09  Matthew Heaney  <heaney@adacore.com>

        * a-convec.adb (Merge): Added assertions to check whether vector params
        are sorted.

        * a-coinve.adb (Merge): Added assertions to check whether vector params
        are sorted.

        * a-cohama.ads (Cursor'Write): raises Program_Error per latest AI-302
        draft.
        (Cursor'Read): raises PE

        * a-cohama.adb (Insert.New_Node): Uses box-style syntax to init elem
        to its default value.

        * a-cihama.adb: Manually check whether cursor's key and elem are
        non-null

        * a-cidlli.ads, a-cidlli.adb (Splice): Changed param name and param mode
        (Merge): Assert that target and source lists are in order
        (Swap): Declare non-const temporaries, to pass to Splice

        * a-cdlili.ads: (Splice): Changed param name and param mode

        * a-cdlili.adb: (Splice): Changed param name and param mode
        (Merge): Assert that target and source lists are in order
        (Swap): Declare non-const temporaries, to pass to Splice

        * a-ciorma.ads, a-coorma.ads: (Read): declare Stream param as not null
        (Write): declare Stream param as not null

        * a-ciorma.adb, a-coorma.adb: All explicit raise statements now include
        an exception message.

2005-12-09  Thomas Quinot  <quinot@adacore.com>
            Robert Dewar  <dewar@adacore.com>

        * hostparm.ads (Max_Line_Length): Set to Types.Column_Number'Last - 1,
        which is the absolute maximum length we can support.

        * frontend.adb: For the processing of configuration pragma files,
        remove references to Opt.Max_Line_Length, which is not checked anymore.

        * namet.ads (Name_Buffer): Adjust size to reflect increase on max line
        length.

        * scn.adb, scng.adb: 
        Always check line length against the absolute supported maximum,
        Hostparm.Max_Line_Length.

        * stylesw.adb (Set_Style_Check_Options, case M): The maximum supported
        value for the maximum line length is Max_Line_Length (not
        Column_Number'Last).
        Minor error msg update
        (Set_Style_Check_Options): New interface returning error msg
        Minor code reorganization (processing for 'M' was out of alpha order)

        * switch-c.adb: New interface for Set_Style_Check_Options

        * stylesw.ads (Set_Style_Check_Options): New interface returning error
        msg.

2005-12-09  Javier Miranda  <miranda@adacore.com>

        * exp_aggr.adb (Build_Record_Aggr_Code): Default-initialialized records
        with IP subprogram were only supported if there were limited types.

        * sem_aggr.adb (Resolve_Record_Aggregate): Default-initialialized
        records with IP subprogram were only supported if there were limited
        types.

2005-12-09  Olivier Hainque  <hainque@adacore.com>
            Eric Botcazou  <ebotcazou@adacore.com>

        * trans.c (tree_transform, emit_check): Adjust calls to
        build_call_raise, passing the now expected GNAT_NODE argument.

        * gigi.h (build_call_raise): Add a GNAT_NODE argument to convey better
        source line information than what the current global locus indicates
        when appropriate.

        * utils2.c (build_simple_component_ref): Return 0 if the offset of the
        field has overflowed.
        (build_call_raise): Add a GNAT_NODE argument to convey better source
        line information than what the current global locus indicates when
        appropriate.
        (build_component_ref): Adjust call to build_call_raise.

2005-12-09  Pascal Obry  <obry@adacore.com>

        * g-diopit.adb (Find): Fix test to exit the iterator and make sure that
        the iterator is quitting iteration on parent directory.

2005-12-09  Javier Miranda  <miranda@adacore.com>

        * exp_ch5.adb (Expand_N_Assignment_Statement): In case of tagged types
        and the assignment to a class-wide object, before the assignment we
        generate a run-time check to ensure that the tag of the Target is
        covered by the tag of the source.

2005-12-09  Robert Dewar  <dewar@adacore.com>

        * exp_imgv.adb (Expand_Image_Attribute): Generate extra boolean
        parameter in call to Image_Wide_Character.

        * s-imgwch.ads, s-imgwch.adb (Image_Wide_Character): Add boolean
        parameter Ada_2005 to deal with annoying FFFE/FFFF inconsistency.
        (Image_Wide_Character): Add boolean parameter Ada_2005 to deal with
        annoying FFFE/FFFF inconsistency.

2005-12-09  Robert Dewar  <dewar@adacore.com>
            Javier Miranda  <miranda@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>

        * exp_util.ads, exp_util.adb (Is_Ref_To_Bit_Packed_Slice): Handle case
        of type conversion.
        (Find_Interface): New subprogram that given a tagged type and one of its
        component associated with the secondary table of an abstract interface
        type, return the entity associated with such abstract interface type.
        (Make_Subtype_From_Expr): If type has unknown discriminants, always use
        base type to create anonymous subtype, because entity may be a locally
        declared subtype or generic actual.
        (Find_Interface): New subprogram that given a tagged type and one of its
        component associated with the secondary table of an abstract interface
        type, return the entity associated with such abstract interface type.

        * sem_res.adb (Resolve_Type_Conversion): Handle the case in which the
        conversion cannot be handled at compile time. In this case we pass this
        information to the expander to generate the appropriate code.

2005-12-09  Robert Dewar  <dewar@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>
            Gary Dismukes  <dismukes@adacore.com>
            Javier Miranda  <miranda@adacore.com>
            Hristian Kirtchev  <kirtchev@adacore.com>

        * einfo.adb (Itype_Printed): New flag
        (Is_Limited_Type): Derived types do not inherit limitedness from
        interface progenitors.
        (Is_Return_By_Reference_Type): Predicate does not apply to limited
        interfaces.

        * einfo.ads (Itype_Printed): New flag
        Move Is_Wrapper_Package to proper section
        Add missing Inline for Is_Volatile

        * output.ads, output.adb (Write_Erase_Char): New procedure
        (Save/Restore_Output_Buffer): New procedures
        (Save/Restore_Output_Buffer): New procedures

        * sprint.ads, sprint.adb (Write_Itype): Handle case of record itypes
        Add missing support for anonymous access type
        (Write_Id): Insert calls to Write_Itype
        (Write_Itype): New procedure to output itypes

        * par-ch12.adb (P_Formal_Derived_Type_Definition): In Ada 2005, handle
        use of "limited" in declaration.

        * sinfo.ads, sinfo.adb: 
        Formal derived types can carry an explicit "limited" indication.

        * sem_ch3.adb: Add with and use of Targparm.
        (Create_Component): If Frontend_Layout_On_Target is True and the
        copied component does not have a known static Esize, then reset
        the size and positional fields of the new component.
        (Analyze_Component_Declaration): A limited component is
        legal within a protected type that implements an interface.
        (Collect_Interfaces): Do not add to the list the interfaces that
        are implemented by the ancestors.
        (Derived_Type_Declaration): If the parent of the full-view is an
        interface perform a transformation of the tree to ensure that it has
        the same parent than the partial-view. This simplifies the job of the
        expander in order to generate the correct object layout, and it is
        needed because the list of interfaces of the full-view can be given in
        any order.
        (Process_Full_View): The parent of the full-view does not need to be
        a descendant of the parent of the partial view if both parents are
        interfaces.
        (Analyze_Private_Extension_Declaration): If declaration has an explicit
        "limited" the parent must be a limited type.
        (Build_Derived_Record_Type): A derived type that is explicitly limited
        must have limited ancestor and progenitors.
        (Build_Derived_Type): Ditto.
        (Process_Full_View): Verify that explicit uses of "limited" in partial
        and full declarations are consistent.
        (Find_Ancestor_Interface): Remove function.
        (Collect_Implemented_Interfaces): New procedure used to gather all
        implemented interfaces by a type.
        (Contain_Interface): New function used to check whether an interface is
        present in a list.
        (Find_Hidden_Interface): New function used to determine whether two
        lists of interfaces constitute a set equality. If not, the first
        differing interface is returned.
        (Process_Full_View): Improve the check for the "no hidden interface"
        rule as defined by AI-396.

2005-12-09  Robert Dewar  <dewar@adacore.com>

        * freeze.adb (Freeze_Record_Type): Only test for useless pack on record
        types, not on record subtypes.
        (Freeze_Entity): Code cleanup. Add barrier to the loop
        that generates the references for primitive operations. This allows to
        remove an unnecessary exception handler.
        Code reformatting and comment clean ups.

2005-12-09  Vincent Celier  <celier@adacore.com>

        * gnatcmd.adb (GNATCmd): GNAT CHECK accepts switch -U
        If GNAT CHECK is called with a project file, but with no
        source on the command line, call gnatcheck with all the compilable
        sources of the project.
        Take into account the new command Check, for gnatcheck. Treat as for
        other ASIS tools: take into account project, specific package Check and
        Compiler switches.
        For ASIS tools, add the switches in package Compiler for
        the invocation of the compiler.

        * prj-attr.adb: Add package Check and its attributes

        * vms_conv.ads (Command_Type): New command Check, for gnatcheck

        * vms_conv.adb (Initialize): Change Params of command Check to
        unlimited files.
        Change some Hostparm.OpenVMS checks to Targparm.OpenVMS_On_Target.
        Add data for new command Check

        * vms_data.ads: Add project related qualifiers for GNAT CHECK and GNAT
        ELIM.
        Add qualifiers for Check command options
        (Command_Type): New command Check

2005-12-09  Thomas Quinot  <quinot@adacore.com>

        * mlib-utl.adb (Ar): Use Output.Buffer_Max to determine whether a
        command line switch overruns the output buffer.

2005-12-09  Robert Dewar  <dewar@adacore.com>

        * sem_prag.adb: Processing for new pragma Complete_Representation
        (Analyze_Pragma, case Debug): Implement two argument form.

        * par-prag.adb: Entry for new pragma Complete_Representation
        (Prag, case Debug): Recognize two argument form of pragma Debug
        New interface for Set_Style_Check_Options.

        * sem_ch13.adb: Implement new pragma Complete_Representation.

        * snames.adb, snames.ads, snames.h: Entry for new pragma
        Complete_Representation.

2005-12-09  Gary Dismukes  <dismukes@adacore.com>

        * sem_cat.adb (Validate_RCI_Subprogram_Declaration): Revise test for
        available user-specified stream attributes on limited parameters to
        also test the type directly rather than only its underlying type (for
        Ada 95) and, in the case of Ada 2005, to check that the user-specified
        attributes are visible at the point of the subprogram declaration.
        For Ada 2005, the error message is modified to indicate that the
        type's stream attributes must be visible (again, only for -gnat05).

2005-12-09  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch12.adb (Subtypes_Match): Handle properly Ada05 arrays of
        anonymous access types.

        * sem_eval.adb (Subtypes_Statically_Match): Implement new rules for
        matching of anonymous access types and anonymous access to subprogram
        types. 'R'M 4.9.1 (2/2).

2005-12-09  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch4.adb (Remove_Abstract_Operations): Do not apply preference
        rule prematurely when operands are universal, remaining ambiguities
        will be removed during resolution.
        Code cleanup.

        * sem_type.adb (Disambiguate): In Ada95 mode, discard interpretations
        that are Ada 2005 functions.
        (Has_Abstract_Interpretation): Subsidiary to
        Remove_Conversions, to remove ambiguities caused by abstract operations
        on numeric types when operands are universal.

2005-12-09  Robert Dewar  <dewar@adacore.com>

        * sem_ch6.adb (Analyze_Subprogram_Body): Properly check categorization
        for case where spec is categorized.

2005-12-09  Javier Miranda  <miranda@adacore.com>

        * sem_ch8.adb (Find_Type): In case of tagged types that are concurrent
        types use the corresponding record type. This was not needed before
        the implementation of Ada 2005 synchronized types because
        concurrent types were never tagged types in Ada 95.

2005-12-09  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch9.adb (Analyze_Delay_Alternative, Analyze_Delay_Until): Use the
        first subtype of the type of the expression to verify that it is a
        legal Time type.

2005-12-09  Robert Dewar  <dewar@adacore.com>

        * sem_util.ads, sem_util.adb (Full_Qualified_Name): Now provides
        decoded names.

2005-12-09  Quentin Ochem  <ochem@adacore.com>
            Robert Dewar  <dewar@adacore.com>
            Ed Falis  <falis@adacore.com>
            Florian Villoing  <villoing@adacore.com>
            Thomas Quinot  <quinot@adacore.com>
            Arnaud Charlet  <charlet@adacore.com>

        * gnat_ugn.texi: Created section "Stack Related Tools"
        Moved "Stack Overflow Checking" subsection from "Switches for gcc" to
        "Stack Related Tools"
        Added subsection "Static Stack Usage Analysis"
        Added subsection "Dynamic Stack Usage Analysis"
        Include documentation of itypes in sprint listing (-gnatG)
        Documented gnatbind -D switch (default sec stack size for fixed sec
        stacks).
        Added Interrupt_State and Persistent_BSS to list of configuration
        pragmas.
        Add missing doc for maximum value of nnn in -gnatyMnnn

        * gnat_rm.texi: Document the AltiVec binding.
        Add documentation for pragma Complete_Representation
        Shortened an overly long line (> 79 chars)
        Clarify documentation of unchecked conversion in implementation
        defined cases.
        Document two argument form of pragma Debug

        * types.ads (Column_Number): Update documentation.

        * exp_ch7.ads (Make_Adjust_Call): Document the special processing for
        library level Finalize_Storage_Only objects (these are not attached to
        any finalization list).

        * system-mingw.ads: (Underlying_Priorities): Update comment.

2005-12-09  Robert Dewar  <dewar@adacore.com>

        * i-c.adb, i-cexten.ads, i-cobol.adb, i-cobol.ads, i-cpoint.ads,
        i-cpp.adb, i-cpp.ads, i-cstrea.ads, i-cstrin.adb, i-cstrin.ads,
        inline.adb, interfac.ads, i-os2err.ads, i-os2lib.ads, i-os2syn.ads,
        i-os2thr.ads, itypes.adb, itypes.adb, itypes.ads, krunch.ads,
        krunch.adb, lib.adb, lib.ads, lib-list.adb, lib-load.adb,
        lib-load.ads, lib-sort.adb, live.adb, make.ads, i-cstrea-vms.adb,
        interfac-vms.ads, makegpr.adb, indepsw-gnu.adb, indepsw.ads,
        s-wchcon.ads, sdefault.ads, sem_ch10.adb, sem_eval.ads: Minor
        reformatting.

2005-12-09  Robert Dewar  <dewar@adacore.com>

        * s-vaflop-vms-alpha.adb: (Ne_F): New function
        (Ne_G): New function

        * exp_ch4.adb (Expand_Allocator_Expression): Factor duplicated code
        for tag assignment.
        (Rewrite_Comparison): Handle case where operation is not a comparison
        and ignore, and also handle type conversion case.

2005-12-09  Thomas Quinot  <quinot@adacore.com>

        * exp_aggr.ads: Fix typo in comment.
        ???-mark Convert_Aggr_In_Assignment as needing documentation.

2005-12-09  Gary Dismukes  <dismukes@adacore.com>

        * layout.adb: Replace various uses of byte by storage unit throughout.
        (Get_Max_SU_Size): Name changed from Get_Max_Size. In the case of a
        static size, convert to storage units before returning, to conform to
        spec.

2005-12-09  Matthew Gingell  <gingell@adacore.com>

        * g-exctra.ads: Fix typo in comment.

2005-12-09  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * utils.c: Minor reformatting.

2005-12-09  Robert Dewar  <dewar@adacore.com>

        * g-soccon.ads: 
        Further comment fixes to make the status of the default file clear

        * s-bitops.adb: Clarify comment for Bits_Array

2005-12-07  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>

        * Make-lang.in (ada.install-normal): Remove.

2005-12-07  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>

        * Make-lang.in: Remove all dependencies on s-gtype.

2005-12-05  Richard Guenther  <rguenther@suse.de>

        * utils.c (convert): Use fold_convert where appropriate.

2005-12-05  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.in (gnatlib): Fix regex, using \. instead of . when
        a period is meant.

2005-12-02  Richard Guenther  <rguenther@suse.de>

        * trans.c (gnat_gimplify_expr): Use buildN instead of build.

2005-12-01  Roger Sayle  <roger@eyesopen.com>

        * utils.c (max_size): Only test for TREE_OVERFLOW on INTEGER_CST
        nodes.

2005-11-23  Laurent GUERBY  <laurent@guerby.net>

        * mlib-prj.adb (Build_Library): Initialize Delete.

2005-11-21  Joel Sherrill <joel.sherrill@oarcorp.com>

        * socket.c: Add extern int h_errno for rtems since networking header
        files are not available at this point in a tool bootstrap. Newlib
        only has basic C library header files.

2005-11-19  Richard Guenther  <rguenther@suse.de>
        Roger Sayle  <roger@eyesopen.com>

        PR ada/23717
        * misc.c (internal_error_function): Don't use vsprintf to format
        the error message text, instead use pp_format_text and the new
        pretty printer APIs.  This allows handling of %qs, %w, etc.

2005-11-18  Laurent GUERBY  <laurent@guerby.net>

        PR ada/24857
        * Makefile.in: Use s-auxdec-empty for RTEMS.

2005-11-17  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        PR ada/22333
        * trans.c (gnat_gimplify_expr, case ADDR_EXPR): Always make
        a temporary if taking the address of something that is neither
        reference, declaration, or constant, since the gimplifier
        can't handle that case.

2005-11-17  Laurent GUERBY  <laurent@guerby.net>

        PR ada/24857
        * s-auxdec-empty.ads, s-auxdec-empty.adb: New files.
        
2005-11-16  Richard Guenther  <rguenther@suse.de>

        * Makefile.in: Add EH_MECHANISM=-gcc to s390(x) linux.

2005-11-16  Joel Sherrill <joel.sherrill@oarcorp.com>

        PR ada/24855
        * raise-gcc.c: Add missing stdarg.h include.
 
2005-11-16  Richard Guenther  <rguenther@suse.de>

        * Make-lang.in (ada/decl.o): Add $(EXPR_H) dependency.
        (ada/misc.o): Likewise.

2005-11-14  Thomas Quinot  <quinot@adacore.com>

        * g-soccon.ads: Minor reformatting. Update comments.

        * gsocket.h: Include <sys/times.h> in the VxWorks case, in order to
        gain visibility on the declaration of struct timeval.

        * g-soccon-freebsd.ads,
        g-soccon-darwin.ads,
        g-soccon-tru64.ads,
        g-soccon-aix.ads,
        g-soccon-irix.ads,
        g-soccon-hpux.ads,
        g-soccon-solaris.ads,
        g-soccon-vms.ads,
        g-soccon-mingw.ads,
        g-soccon-vxworks.ads (SIZEOF_tv_sec, SIZEOF_tv_usec): New constants.

        * g-soccon-hpux-ia64.ads, g-soccon-linux-ppc.ads,
        g-soccon-solaris-64.ads, g-soccon-linux-64.ads,
        g-soccon-linux-x86.ads: New files.

        * g-socthi-mingw.adb: 
        (Socket_Error_Message): Remove redundant use of GNAT.Sockets.Constants

        * g-socthi-vxworks.ads, g-socthi-vms.ads, g-socthi-mingw.ads
        (time_t, suseconds_t): New types constructed to match the tv_sec
        and tv_usec fields of C struct timeval.
        (Timeval): Construct structure in terms of the new types.
        (Host_Errno): New function (imported from socket.c), returns last hosts
        database error.

        * g-socthi-vxworks.adb:  Add error handling circuitry.

        * g-socket.ads, g-socket.adb (To_Timeval): Reflect change of type for
        components of struct timeval.
        (Get_Host_By_Name, Get_Host_By_Address): Fix error reporting circuitry.
        (Check_Selector): In error conditions, clear internal socket sets to
        avoid a memory leak.
        (Get_Socket_Option, Set_Socket_Option): Support for Multicast_If,
        Send_Timeout, Receive_Timeout.

        * g-socthi.ads (time_t, suseconds_t): New types constructed to match
        the tv_sec and tv_usec fields of C struct timeval.
        (Timeval): Construct structure in terms of the new types.
        (Host_Errno): New function (imported from socket.c), returns last hosts
        database error.

        * socket.c (__gnat_get_h_errno): New function to retrieve h_errno, the
        hosts database last error code.

        * gen-soccon.c: Complete value expansion should not be performed on
        TARGET, as it has the form of a math expression, and some components
        may be platform-defined macros.
        For VxWorks, generate the OK and ERROR values.
        New constants giving the sizes of the components of C struct timeval.

2005-11-14  Robert Dewar  <dewar@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>

        PR ada/18434

        * types.ads: Include All_Checks in Suppress_Array

        * checks.adb (Check_Needed): Remove kludge for a/=b rewritten as
        not(a=b), since we no longer do this rewriting, and hence it is not
        needed.
        (Elaboration_Checks_Suppressed): Add special casing to
        deal with different cases of static and dynamic elaboration checks (all
        checks does not count in the first case, but does in the second).
        (Expr_Known_Valid): Do not assume that the result of any arbitrary
        function call is valid, since this is not the case.
        (Ensure_Valid): Do not apply validity check to a real literal
        in a universal or fixed context

        * exp_ch4.adb (Expand_N_Op_Ne): Don't expand a/=b to not(a=b) for
        elementary types using the operator in standard. It is cleaner not to
        modify the programmers intent, especially in the case of floating-point.
        (Rewrite_Comparison): Fix handling of /= (this was always wrong, but
        it did not matter because we always rewrote a/=b to not(a=b).
        (Expand_Allocator_Expression): For an allocator expression whose nominal
        subtype is an unconstrained packed type, convert the expression to its
        actual constrained subtype.
        Implement warning for <= or >= where < or > not possible
        Fix to Vax_Float tests (too early in many routines, causing premature
        Vax_Float expansions.

        * sem_prag.adb (Analyze_Pragma, case Obsolescent): Allow this pragma
        to be used with packages and generic packages as well as with
        subprograms.
        (Suppress): Set All_Checks, but not Elaboration_Check, for case
        of pragma Suppress (All_Checks)
        (Analyze_Pragma, case Warnings): Implement first argument allowed to be
        a string literal for precise control over warnings.
        Avoid raise of pragma in case of unrecognized pragma and just return
        instead.

        * sem_prag.ads: Minor reformatting

        * switch-c.adb (Scan_Front_End_Switches): Replace "raise Bad_Switch;"
        with call to new procedure Bad_Switch. Call Scan_Pos with new parameter
        Switch. Do not handle any exception.
        Include -gnatwx as part of -gnatg (warn on redundant parens)
        Allow optional = after -gnatm
        (Scan_Front_End_Switches): The -gnatp switch sets All_Checks, but no
        longer sets Elaboration_Checks.
        Code to set warning mode moved to Sem_Warn
        so that it can be shared by pragma processing.

        * s-mastop-tru64.adb (Pop_Frame): Remove redundant parentheses in if
        statement.

        * s-taprop-solaris.adb: 
        Change some <= to =, to avoid new warning

        * a-exexda.adb, prj-proc.adb: 
        Fix obvious typo (Num_Tracebacks compared <= 0 instead of < 0)
        Fix obvious typo (Total_Errors_Detected <= 0 should be = 0)

2005-11-14  Robert Dewar  <dewar@adacore.com>

        * exp_vfpt.adb: Handle /= case
        (Expand_Vax_Conversion): Properly recognize Conversion_OK flag
        so that we do not get duplicate scaling for fixed point conversions.

        * s-vaflop.ads, s-vaflop.adb: (Ne_F): New function

2005-11-14  Matthew Gingell  <gingell@adacore.com>

        * system-lynxos-ppc.ads, system-lynxos-x86.ads: 
        Increase default priority on Lynx from 15 to 17, and meet the Ada
        requirement that Default_Priority be ((Priority'First +
        Priority'Last) / 2) by increasing the range of Interrupt_Priority.

2005-11-14  Vincent Celier  <celier@adacore.com>

        * mlib-tgt-tru64.adb, mlib-tgt-aix.adb, mlib-tgt-irix.adb,
        mlib-tgt-hpux.adb, mlib-tgt-hpux.adb, mlib-tgt-linux.adb,
        mlib-tgt-solaris.adb, mlib-tgt-vms-alpha.adb, mlib-tgt-vms-alpha.adb,
        mlib-tgt-vms-ia64.adb, mlib-tgt-mingw.adb, mlib-tgt-vxworks.adb,
        mlib-tgt-darwin.adb, mlib-tgt.adb, mlib-tgt.ads,
        mlib-tgt-lynxos.adb (DLL_Prefix): New function

2005-11-14  Doug Rupp  <rupp@adacore.com>

        * system-vms.ads, system-vms_64.ads: ADA$GNAT: New exported object in
        private part.

2005-11-14  Arnaud Charlet  <charlet@adacore.com>

        * s-traces-default.adb, s-trafor-default.ads,
        s-tratas-default.adb: Fix compilation errors.

2005-11-14  Jose Ruiz  <ruiz@adacore.com>

        * s-taprop-posix.adb (Initialize_Lock): Destroy mutex attribute before
        raising the exception so the memory used is freed.

2005-11-14  Arnaud Charlet  <charlet@adacore.com>

        * adaint.h, adaint.c (__gnat_is_cross_compiler): New constant.
        (Gnat_Install_Locks, __gnatlib_install_locks): Removed, no longer used.
        (convert_address): Update comments and list of platforms using this.

        * s-tasini.adb (Gnat_Install_Locks, __gnatlib_install_locks): Removed,
        no longer used.

2005-11-14  Pascal Obry  <obry@adacore.com>
            Vincent Celier  <celier@adacore.com>

        * gnatdll.adb (Parse_Command_Line): Remove redundant use of
        GNAT.Command_Line.

        * memroot.adb: Remove redundant with/use clause on
        System.Storage_Elements.

2005-11-14  Arnaud Charlet  <charlet@adacore.com>

        * a-except.adb (Zero_Cost_Exceptions): Removed, no longer used.
        (builtin_longjmp, Process_Raise_Exceeption): Move setjmp/longjmp
        related code to a-exexpr.adb
        (Save_Occurrence_And_Private): Move GCC EH related code to
        a-exexpr-gcc.adb
        (Raise_Current_Excep): Add new variable Id with pragma
        volatile, to ensure that the variable lives on stack.

        * a-exexpr-gcc.adb, raise-gcc.c: New file.

        * a-exexpr.adb (builtin_longjmp, Propagate_Exception): Moved here code
        from a-except.adb.
        Move GCC EH related code to a-exexpr-gcc.adb

        * Makefile.in: Add or update g-soccon LIBGNAT pairs for Linux/PPC and
        64-bit Solaris
        Split the Linux version of g-soccon into separate variants for 32 and 64
        bit platforms.
        (gnatlib): Use $(AR_FOR_TARGET) and $(RANLIB_FOR_TARGET)
        vice $(AR) and $(RANLIB). Remove use of host variable $(RANLIB_FLAGS).
        install-gnatlib: Use $(RANLIB_FOR_TARGET) vice $(RANLIB). Remove use
        of host variable $(RANLIB_FLAGS).
        (alpha64-dec-*vms*): Fix translations for 64 bit compiler.
        Code clean up: remove unused/obsolete targets.
        (EH_MECHANISM): New variable introduced to differenciate between the
        two EH mechanisms statically.
        (gnatlib-zcx, gnatlib-sjlj): Force EH_MECHANISM manually.
        (LIBGNAT_OBJS): Add raise-gcc.o
        (LIBGNAT_TARGET_PAIRS for ppc-vxworks): Use an specialized version of
        s-osinte.adb, s-tpopsp.adb, and system.ads for the run time that
        supports VxWorks 6 RTPs.
        (EXTRA_GNATRTL_NONTASKING_OBJS for ppc-vxworks): Remove the use of
        i-vxworks and i-vxwoio from the run time that supports VxWorks 6 RTPs.

        * raise.c: Move all GCC EH-related routines to raise-gcc.c

2005-11-14  Jose Ruiz  <ruiz@adacore.com>

        * s-tassta.adb (Create_Task): Move the code in charge of resetting the
        deferral level, when abort is not allowed, to a later stage (the
        Task_Wrapper).
        (Task_Wrapper): If Abort is not allowed, reset the deferral level since
        it will not get changed by the generated code. It was previously done
        in Create_Task.

2005-11-14  Thomas Quinot  <quinot@adacore.com>
            Olivier Hainque  <hainque@adacore.com>
            Eric Botcazou  <ebotcazou@adacore.com>

        * decl.c:
        Factor common code to build a storage type for an unconstrained object
        from a fat or thin pointer type and a constrained object type.
        (annotate_value): Handle BIT_AND_EXPR.
        (annotate_rep): Don't restrict the back annotation of inherited
        components to the type_annotate_only case.
        (gnat_to_gnu_entity) <E_Array_Type>: Do not invoke create_type_decl if
        we are not defining the type.
        <E_Record_Type>: Likewise.
        (gnat_to_gnu_entity) <object, renaming>: Adjust comments and structure
        to get advantage of the new maybe_stabilize_reference interface, to
        ensure that what we reference is indeed stabilized instead of relying
        on assumptions on what the stabilizer does.
        (gnat_to_gnu_entity) <E_Incomplete_Type>: If the entity is an incomplete
        type imported through a limited_with clause, use its non-limited view.
        (Has_Stdcall_Convention): New macro, to centralize the Windows vs others
        differentiation.
        (gnat_to_gnu_entity): Use Has_Stdcall_Convention instead of a spread mix
        of #if sections + explicit comparisons of convention identifiers.
        (gnat_to_gnu_entity) <E_Variable>: Decrement force_global if necessary
        before early-returning for certain types when code generation is
        disabled.
        (gnat_to_gnu_entity) <object>: Adjust comment attached to the
        nullification of gnu_expr we do for objects with address clause and
        that we are not defining.
        (elaborate_expression_1): Do not create constants when creating
        variables needed by the debug info: the dwarf2 writer considers that
        CONST_DECLs is used only to represent enumeration constants, and emits
        nothing for them.
        (gnat_to_gnu_entity) <object>: When turning a non-definition of an
        object with an address clause into an indirect reference, drop the
        initializing expression.
        Include "expr.h".
        (STACK_CHECK_BUILTIN): Delete.
        (STACK_CHECK_PROBE_INTERVAL): Likewise.
        (STACK_CHECK_MAX_FRAME_SIZE): Likewise.
        (STACK_CHECK_MAX_VAR_SIZE): Likewise.
        (gnat_to_gnu_entity): If gnat_entity is a renaming, do not mark the tree
        corresponding to the renamed object as ignored for debugging purposes.

        * trans.c (tree_transform, case N_Attribute_Reference, case Attr_Size &
        related): For a prefix that is a dereference of a fat or thin pointer,
        if there is an actual subtype provided by the front-end, use that
        subtype to build an actual type with bounds template.
        (tree_transform, case N_Free_Statement): If an Actual_Designated_Subtype
        is provided by the front-end, use that subtype to compute the size of
        the deallocated object.
        (gnat_to_gnu): When adding a statement into an elaboration procedure,
        check for a potential violation of a No_Elaboration_Code restriction.
        (maybe_stabilize_reference): New function, like gnat_stabilize_reference
        with extra arguments to control whether to recurse through non-values
        and to let the caller know if the stabilization has succeeded.
        (gnat_stabilize_reference): Now a simple wrapper around
        maybe_stabilize, for common uses without restriction on lvalues and
        without need to check for the success indication.
        (gnat_to_gnu, call_to_gnu): Adjust calls to gnat_stabilize_reference, to
        pass false instead of 0 as the FORCE argument which is a bool.
        (Identifier_to_gnu): Remove checks ensuring that an renamed object
        attached to a renaming pointer has been properly stabilized, as no such
        object is attached otherwise.
        (call_to_gnu): Invoke create_var_decl to create the temporary when the
        function uses the "target pointer" return mechanism.
        Reinstate conversion of the actual to the type of the formal
        parameter before any other specific treatment based on the passing
        mechanism. This turns out to be necessary in order for PLACEHOLDER
        substitution to work properly when the latter type is unconstrained.

        * gigi.h (build_unc_object_type_from_ptr): New subprogram, factoring a
        common pattern.
        (maybe_stabilize_reference): New function, like gnat_stabilize_reference
        with extra arguments to control whether to recurse through non-values
        and to let the caller know if the stabilization has succeeded.

        * utils2.c (gnat_build_constructor): Only sort the fields for possible
        static output of record constructor if all the components are constant.
        (gnat_build_constructor): For a record type, sort the list of field
        initializers in increasing bit position order.
        Factor common code to build a storage type for an unconstrained object
        from a fat or thin pointer type and a constrained object type.
        (build_unary_op) <ADDR_EXPR>: Always recurse down conversions between
        types variants, and process special cases of VIEW_CONVERT expressions
        as their NOP_EXPR counterpart to ensure we get to the
        CORRESPONDING_VARs associated with CONST_DECls.
        (build_binary_op) <MODIFY_EXPR>: Do not strip VIEW_CONVERT_EXPRs
        on the right-hand side.

        * utils.c (build_unc_object_type_from_ptr): New subprogram, factoring
        a common pattern.
        (convert) <VIEW_CONVERT_EXPR>: Return the inner operand directly if we
        are converting back to its original type.
        (convert) <JM input>: Fallthrough regular conversion code instead of
        extracting the object if converting to a type variant.
        (create_var_decl): When a variable has an initializer requiring code
        generation and we are at the top level, check for a potential violation
        of a No_Elaboration_Code restriction.
        (create_var_decl): call expand_decl for CONST_DECLs, to set MODE, ALIGN
        SIZE and SIZE_UNIT which we need for later back-annotations.
        * utils.c: (convert) <STRING_CST>: Remove obsolete code.
        <VIEW_CONVERT_EXPR>: Do not lift the conversion if the target type
        is an unchecked union.
        (pushdecl): Set DECL_NO_STATIC_CHAIN on imported nested functions.
        (convert) <VIEW_CONVERT_EXPR>: When the types have the same
        main variant, just replace the VIEW_CONVERT_EXPR.
        <UNION_TYPE>: Revert 2005-03-02 change.

        * repinfo.h, repinfo.ads: Add tcode for BIT_AND_EXPR.

        * repinfo.adb (Print_Expr, Rep_Value): Handle Bit_And_Expressions.

2005-11-14  Matthew Heaney  <heaney@adacore.com>

        * a-crbtgo.ads, a-crbtgo.adb, a-coorse.ads, a-coorse.adb, a-convec.ads, 
        a-convec.adb, a-coinve.ads, a-coinve.adb, a-cohama.ads, a-cohama.adb, 
        a-ciorse.ads, a-ciorse.adb, a-cihama.ads, a-cihama.adb, a-cidlli.ads, 
        a-cidlli.adb, a-cdlili.ads, a-cdlili.adb, a-coormu.adb, a-ciormu.adb, 
        a-cihase.adb, a-cihase.ads, a-cohase.adb, a-cohase.ads, a-ciorma.ads, 
        a-coorma.ads, a-ciormu.ads, a-coormu.ads, a-ciorma.adb, a-coorma.adb: 
        Compiles against the spec for ordered maps described in sections
        A.18.6 of the most recent (August 2005) AI-302 draft.

2005-11-14  Olivier Hainque  <hainque@adacore.com>

        * cuintp.c (UI_To_gnu): Use a proper type for intermediate computations
        to ensure bias adjustments take place when need be and to prevent
        occurrences of intermediate overflows.

2005-11-14  Matthew Gingell  <gingell@adacore.com>
            Olivier Hainque  <hainque@adacore.com>

        * tb-gcc.c (trace_callback): Work around problem with _Unwind_GetIP on
        ia64 HP-UX.

        * tracebak.c (ia64 configuration): Enable _Unwind_Backtrace driven
        tracebacks on ia64 HP-UX and provide explanatory comment.
        Enable backtraces on ia64 GNU/Linux.
        (x86 configuration): Bump FRAME_LEVEL to 1 to ensure we retrieve a real
        base pointer from builtin_frame_address. Adjust BASE_SKIP accordingly.

2005-11-14  Hristian Kirtchev  <kirtchev@adacore.com>
            Javier Miranda  <miranda@adacore.com>

        * rtsfind.ads, exp_util.adb, exp_util.ads, exp_disp.adb, exp_disp.ads,
        exp_ch7.adb, sem_ch9.adb, snames.adb, snames.ads,
        exp_ch9.adb, exp_ch9.ads, exp_ch6.adb, exp_ch3.adb, exp_ch3.ads,
        einfo.ads, einfo.adb: Complete support for Ada 2005 interfaces.

        * a-tags.ads, a-tags.adb: Major rewrite and additions to implement
        properly new Ada 2005 interfaces (AI-345) and add run-time checks (via
        assertions).

        * exp_dbug.ads, exp_dbug.adb (Get_Secondary_DT_External_Name): New
        subprogram that generates the external name associated with a
        secondary dispatch table.
        (Get_Secondary_DT_External_Name): New subprogram that generates the
        external name associated with a secondary dispatch table.

2005-11-14  Emmanuel Briot  <briot@adacore.com>

        * xref_lib.adb (Parse_Identifier_Info): It is possible for an entity
        line in the ALI file to include both an instantiation reference, and a
        returned value.

2005-11-14  Vincent Celier  <celier@adacore.com>

        * clean.adb (Check_Project): Look for Ada code in extending project,
        even if Ada is not specified as a language.
        Use new function DLL_Prefix for DLL_Name
        (Clean_Interface_Copy_Directory): New procedure
        (Clean_Library_Directory): New procedure
        (Clean_Directory): Remove procedure, no longer used
        (Clean_Project): Do not delete any file in an externally built project

        * prj-env.adb (Set_Ada_Paths.Add.Recursive_Add): Add the object
        directory of an extending project, even when there are no Ada source
        present.
        (Ada_Objects_Path.Add): Add Library_ALI_Dir, not Library_Dir to the path
        (Set_Ada_Paths.Add.Recursive_Add): Ditto

        * mlib-prj.adb (Check_Library): For all library projects, get the
        library file timestamp.
        (Build_Library): Copy ALI files in Library_ALI_Dir, not in Library_Dir
        (Build_Library): Use new function DLL_Prefix for the DLL_Name
        (Clean): Remove procedure, no longer used
        (Ultimate_Extension_Of): New function
        (Build_Library): When cleaning the library directory, only remove an
        existing library file and any ALI file of a source of the project.
        When cleaning the interface copy directory, remove any source that
        could be a source of the project.

        * prj.ads, prj.adb (Project_Empty): Add values of new components
        Library_TS and All_Imported_Projects.
        (Project_Empty): Add values for new components of Project_Data:
        Library_ALI_Dir and Display_Library_ALI_Dir

        * prj-attr.adb: New project level attribute name Library_ALI_Dir

        * prj-nmsc.adb (Check_Library_Attributes): Take into account new
        attribute Library_ALI_Dir.
        (Check_Library_Attributes): The library directory cannot be the same as
        any source directory of the project tree.
        (Check_Stand_Alone_Library): The interface copy directory cannot be
        the same as any source directory of the project tree.

        * mlib.adb: Use Prj.Com.Fail, instead of Osint.Fail directly, to delete
        all temporary files.

2005-11-14  Robert Dewar  <dewar@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>

        * sem_elab.adb: Change name Is_Package to Is_Package_Or_Generic_Package
        (Check_Elab_Call): A call within a protected body is never an
        elaboration call, and does not require checking.
        (Same_Elaboration_Scope): Take into account protected types for both
        entities.
        (Activate_Elaborate_All_Desirable): New procedure

        * ali.ads, ali.adb: Implement new AD/ED for Elaborate_All/Elaborate
        desirable

        * binde.adb: Implement new AD/ED for Elaborate_All/Elaborate desirable
        (Elab_Error_Msg): Use -da to include internal unit links, not -de.

        * lib-writ.ads, lib-writ.adb: 
        Implement new AD/ED for Elaborate_All/Elaborate desirable
        Use new Elaborate_All_Desirable flag in N_With_Clause node

        * sinfo.ads, sinfo.adb (Actual_Designated_Subtype): New attribute for
        N_Free_Statement nodes.
        Define new class N_Subprogram_Instantiation
        Add Elaborate_Desirable flag to N_With_Clause node
        Add N_Delay_Statement (covering two kinds of delay)

        * debug.adb: Introduce d.f flag for compiler
        Add -da switch for binder

2005-11-14  Ed Schonberg  <schonberg@adacore.com>
            Cyrille Comar  <comar@adacore.com>

        * exp_aggr.adb (Build_Record_Aggr_Code): Do not create master entity
        for task component, in the case of a limited aggregate. The enclosed
        object declaration will create it earlier. Otherwise, in the case of a
        nested aggregate, the object may appear in the wrong scope.
        (Convert_Aggr_In_Object_Decl): Create a transient scope when needed.
        (Gen_Assign): If the component being assigned is an array type and the
        expression is itself an aggregate, wrap the assignment in a block to
        force finalization actions on the temporary created for each row of the
        enclosing object.
        (Build_Record_Aggr_Code): Significant rewrite insuring that ctrl
        structures are initialized after all discriminants are set so that
        they can be accessed even when their offset is dynamic.

2005-11-14  Robert Dewar  <dewar@adacore.com>
            Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_attr.adb: Implement Machine_Rounding attribute
        (Analyze_Access_Attribute): The access attribute may appear within an
        aggregate that has been expanded into a loop.
        (Check_Task_Prefix): Add semantic check for attribute 'Callable and
        'Terminated whenever the prefix is of a task interface class-wide type.
        (Analyze_Attribute): Add semantic check for attribute 'Identity whenever
        the prefix is of a task interface class-wide type.

        * s-vaflop-vms-alpha.adb: Valid_D, Valid_F, Valid_G: Make Val constant
        to avoid warnings.

        * s-fatgen.ads, s-fatgen.adb (Machine_Rounding): New function
        Remove pragma Inline for [Unaligned_]Valid.
        Add comments that Valid routines do not work for Vax_Float

        * exp_attr.adb: Implement Machine_Rounding attribute

        * snames.h: Add entry for Machine_Rounding attribute

2005-11-14  Javier Miranda  <miranda@adacore.com>
            Robert Dewar  <dewar@adacore.com>
            Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_attr.adb (Expand_N_Attribute_Reference, cases of Attribute_Size
        and related): For a prefix that is an explicit dereference of an
        access to unconstrained packed array type, annotate the dereference
        with an actual subtype so GIGI can make a correct size computation.
        (Expand_N_Attribute_Reference): In case of 'Unchecked_Access and
        'Unrestricted_Access, if the designated type is an interface we
        add a type conversion to force the displacement of the pointer
        to the secondary dispatch table.
        Use Universal_Real instead of Long_Long_Float when we need a high
        precision float type for the generated code (prevents gratuitous
        Vax_Float stuff when pragma Float_Representation (Vax_Float) used)
        (Expand_N_Attribute_Reference): Add support for attribute 'Callable and
        'Terminated for task interface class-wide objects. Generate a call to
        the predefined dispatching routine used to retrieve the _task_id from
        a task corresponding record.
        (Expand_Fpt_Attribute): Major change to properly handle Vax_Float

        * sem_disp.adb: Change name Is_Package to Is_Package_Or_Generic_Package
        (Check_Dispatching_Operation): Protect the frontend againts
        previously detected errors.

        * Makefile.rtl: Add new instantiations of system.fat_gen

        * s-fatflt.ads, s-fatlfl.ads, s-fatllf.ads, s-fatsfl.ads: 
        Change name of instantiated package for better consistency
        with newly added system.fat_gen instantiations.

        * s-filofl.ads, s-fishfl.ads, s-fvadfl.ads, s-fvaffl.ads,
        s-fvagfl.ads: New files.

2005-11-14  Cyrille Comar  <comar@adacore.com>
            Thomas Quinot  <quinot@adacore.com>

        * exp_ch5.adb (Expand_N_Assignment_Statement, Tagged_Case): For an
        assignment of a value of a tagged type that has been rewritten to a
        block statement, it is known by construction that no checks are
        necessary for the statements within the block: analyze it with checks
        suppressed.
        (Expand_N_If_Statement): When killing a dead then-branch in an
        if-statement that has elsif_parts, recompute the Current_Value node
        for any entity whose value is known from the condition of the first
        elsif_part.
        (Expand_N_Return_Statement): When returning a mutable record, convert
        the return value into its actual subtype in order to help the backend
        to return the actual size instead of the maximum. This is another
        aftermath of not returning mutable records on the sec-stack anymore.

        * sem_ch5.ads, sem_ch5.adb (Analyze_Iteration_Scheme): Minor change to
        handling of error msg for suspicious reverse range iteration.
        (Check_Possible_Current_Value_Condition): Move declaration from body to
        spec, to allow this subprogram to be called from exp_ch5.

2005-11-14  Thomas Quinot  <quinot@adacore.com>

        * exp_dist.adb (Append_Array_Traversal): Modify constrained case to
        generate a set of nested array aggregates instead of a single flat
        aggregate for multi-dimensional arrays.

2005-11-14  Pascal Obry  <obry@adacore.com>

        * expect.c (__gnat_kill) [Win32]: Fix implementation, the pid returned
        by spawnve is a process handle, no need to convert. Add a parameter
        close to control wether the process handle must be closed.
        (__gnat_waitpid): Fix implementation, the pid returned by spawnve is
        a process handle, not need to convert.
        (__gnat_kill) [*]: Add dummy parameter close to match the Win32 spec.

        * g-expect.adb: (Kill): Document the new close parameter.
        (Close): Do not release the process handle in the kill there as
        waitpid() is using it.
        (Send_Signal): Release the process handle.

2005-11-14  Robert Dewar  <dewar@adacore.com>

        * exp_fixd.adb: Use Universal_Real instead of Long_Long_Float when we
        need a high precision float type for the generated code (prevents
        gratuitous Vax_Float stuff when pragma Float_Representation (Vax_Float)
        used).

        * exp_imgv.adb: Use Universal_Real instead of Long_Long_Float when we
        need a high precision float type for the generated code (prevents
        gratuitous Vax_Float stuff when pragma Float_Representation (Vax_Float)
        used).
        (Expand_Width_Attribute): In configurable run-time, the attribute is not
        allowed on non-static enumeration subtypes. Force a load error to emit
        the correct diagnostic.

2005-11-14  Thomas Quinot  <quinot@adacore.com>
            Robert Dewar  <dewar@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>

        * exp_intr.adb (Expand_Unc_Deallocation): If GIGI needs an actual
        subtype to compute the size of the designated object at run-time,
        create such a subtype and store it in the Actual_Designated_Subtype
        attribute of the N_Free_Statement.
        Generate itype for classwide designated object in both cases of
        user-specified storage pool: specific and class-wide, not only in the
        specific case.
        Raise CE when trying to set a not null access type object to null.
        (Expand_Dispatching_Constructor_Call): Retrieve subprogram actual with
        an explicit loop, because freeze nodes make its position variable.

        * sem_intr.adb (Check_Intrinsic_Call): Given warning for freeing not
        null object.

2005-11-14  Javier Miranda  <miranda@adacore.com>

        * exp_strm.adb (Build_Stream_Attr_Profile, Build_Stream_Function,
        Build_Stream_Procedure): Add the null-excluding attribute to the first
        formal.
        This has no semantic meaning under Ada95 mode but it is a
        requirement under Ada05 mode.

        * par-ch3.adb (P_Access_Definition): Addition of warning message if
        the null exclusion is used under Ada95 mode
        (P_Null_Exclusion): The qualifier has no semantic meaning in Ada 95.
        (P_Access_Definition): Remove assertion that forbids the use of
        the null-exclusion feature in Ada95.

2005-11-14  Robert Dewar  <dewar@adacore.com>

        * impunit.adb: Exclude container helper units not intended for use by
        users.

2005-11-14  Ed Schonberg  <schonberg@adacore.com>

        * freeze.adb (Freeze_Entity): For an access formal that is an access
        to subprogram, freeze the anonymous subprogram type at the same time,
        to prevent later freezing in the wrong scope, such as the enclosing
        subprogram body.
        (Freeze_Entity): Freeze the equivalent_type of an access_to_protected_
        subprogram whenever available.

2005-11-14  Arnaud Charlet  <charlet@adacore.com>

        PR ada/23732
        * gnatvsn.ads (Library_Version): Bump to 4.1

2005-11-14  Robert Dewar  <dewar@adacore.com>

        * g-debpoo.adb (Set_Valid): Use Integer_Address instead of
        Storage_Offset to avoid wrap around causing invalid results.

2005-11-14  Pascal Obry  <obry@adacore.com>

        * gnatbind.adb (Is_Cross_Compiler): New function returning True for
        cross-compiler.
        (Scan_Bind_Arg): Fail with an error message if -M option is used
        on a native compiler.

2005-11-14  Robert Dewar  <dewar@adacore.com>
            Vincent Celier  <celier@adacore.com>

        * gprep.adb: Implement -C switch to scan comments

        * scng.adb: Scan comment symbol separately if Replace_In_Comments set

        * scans.ads: Comment updates (including new use of Tok_Comment in
        preprocessing)

        * opt.ads: Add documentation for flags that are used by gprmake,
        currently and in the next version of gprmake.
        (Verbosity_Level): New variable
        Add Replace_In_Comments switch

        * vms_data.ads: Add VMS equivalent for new gnatmake switches -vl, -vm
        and -vm.
        Add /REPLACE_IN_COMMENTS for gnatprep -C switch

2005-11-14  Arnaud Charlet  <charlet@adacore.com>

        * g-regpat.adb (Fail): raise Expression_Error including the diagnostic
        message, friendlier.

2005-11-14  Robert Dewar  <dewar@adacore.com>

        * g-spitbo.adb: (Hash): Rotate by 3 instead of 1

2005-11-14  Doug Rupp  <rupp@adacore.com>

        * init.c [VMS]: Don't install __gnat_error_handler if DBG$TDBG defined.

2005-11-14  Robert Dewar  <dewar@adacore.com>

        * interfac.ads: Change declarations of IEEE float types so that we no
        longer need a separate version of this package for VMS.

2005-11-14  Ed Schonberg  <schonberg@adacore.com>

        * lib-xref.adb (Generate_Definition, Generate_Reference): Treat the
        internal entity created for the declaration of a child subprogram body
        with no spec as coming from source, to generate proper cross-reference
        information.

2005-11-14  Vincent Celier  <celier@adacore.com>

        * make.adb (Compile_Sources): Change verbose message to minimum
        verbosity level High for "is in an Ada library", "is a read-only
        library" and "is an internal library",
        (Create_Binder_Mapping_File): Path name of ALI file for library project
        must include the library directory, not the object directory.
        (Scan_Make_Arg): Make sure that Switch.M.Scan_Make_Switches is called
        for new switches -vl, -vm and -vh.
        (Verbose_Msg): Add new defaulted parameter Minimum_Verbosity
        (Check): Use minimum verbosity Medium for some Verbose_Msg calls
        (Compile_Sources): Do not attempt to compile if an ALI file is missing
        in a project that is externally built.
        (Compute_All_Imported_Projects): New procedure
        (Gnatmake): Check if importing libraries should be regenerated because
        at least an imported library is more recent.
        (Initialize): For each project compute the list of the projects it
        imports directly or indirectly.
        (Add_Library_Search_Dir): New procedure, used in place of
        Add_Lib_Search_Dir in procedure Scan_Make_Arg so that absolute paths are
        put in the search paths.
        (Add_Source_Search_Dir): New procedure, used in place of
        Add_Src_Search_Dir in procedure Scan_Make_Arg so that absolute paths are
        put in the search paths.
        (Mark_Directory): Resolve the absolute path the directory before marking
        it.

        * switch-m.adb (Scan_Make_Switches): Replace "raise Bad_Switch;" with
        call to new procedure Bad_Switch. Call Scan_Pos with new parameter
        Switch. Do not handle any exception.
        (Scan_Make_Switches): Increment Ptr for new switches -vl, -vm and -vh
        so that the switch is recognized as valid.
        (Scan_Make_Switches): Implement new switches -vl, -vm and -vh.

2005-11-14  GNAT Script  <nobody@adacore.com>

        * Make-lang.in: Makefile automatically updated

2005-11-14  Pascal Obry  <obry@adacore.com>

        * mdll.adb (Build_Reloc_DLL): Fix parameter handling when a map file is
        used.
        (Ada_Build_Reloc_DLL): Fix parameter handling when a map file is used.
        In both cases the last argument was dropped.

2005-11-14  Eric Botcazou  <ebotcazou@adacore.com>

        * namet.h: (Column_Numbe): New type.
        (Get_Column_Number): Define to sinput__get_column_number.
        (Instantiation): Define to sinput__instantiation.
        (Get_Column_Number): Declare.
        (Instantiation): Likewise.

2005-11-14  Robert Dewar  <dewar@adacore.com>

        * par-ch10.adb (P_Compilation_Unit): Add defenses against junk unit
        syntax, which could cause compiler hangs.

2005-11-14  Vincent Celier  <celier@adacore.com>

        * prj-ext.adb: Take into account new environment variable
        GPR_PROJECT_PATH. Warn if both GPR_PROJECT_PATH and ADA_PROJECT_PATH
        are defined.
        (Prj.Ext elaboration): For each directory in the ADA_PROJECT_PATH,
        normalize its path name, making it absolute and resolving symbolic
        links, and replace the original if resolved path is different.

2005-11-14  Vincent Celier  <celier@adacore.com>

        * prj-part.adb (Create_Virtual_Extending_Project): Put virtual project
        into Prj.Tree.Tree_Private_Part.Projects_Htable for GPS.

2005-11-14  Emmanuel Briot  <briot@adacore.com>

        * prj-pp.adb (Print): Do not output the with statement if the
        associated name is empty, which happens for virtual extending projects.
        (Print): Preserve the "extends all" attribute when printing the project.

        * prj-tree.ads (String_Value_Of): Add comment about returned value for
        a virtual extending project.

2005-11-14  Ed Schonberg  <schonberg@adacore.com>

        * sem_aggr.adb (Resolve_Aggregate): An others choice is legal on the
        rhs of an assignment even if the type is unconstrained, when the
        context is non-expanding.
        In an inlined body, if the context type is private,
        resolve with its full view, which must be a composite type.

2005-11-14  Robert Dewar  <dewar@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>

        * sem_ch10.adb: Change name Is_Package to Is_Package_Or_Generic_Package
        Do not give obsolescent warning on with of subprogram (since we
        diagnose calls)
        (Analyze_With_Clause): Add test for obsolescent package
        (Install_Context_Clauses): If the unit is the body of a child unit, do
        not install twice the private declarations of the parents, to prevent
        circular lists of Use_Clauses in a parent.
        (Implicit_With_On_Parent): Do add duplicate with_clause on parent when
        compiling body of child unit.
        Use new class N_Subprogram_Instantiation
        (Expand_With_Clause): If this is a private with_clause for a child unit,
        appearing in the context of a package declaration, then the implicit
        with_clauses generated for parent units are private as well.
        (License_Check): Do not generate message if with'ed unit is internal

2005-11-14  Gary Dismukes  <dismukes@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>
            Thomas Quinot  <quinot@adacore.com>

        * sem_ch12.ads, sem_ch12.adb (Map_Entities): Exclude entities whose
        names are internal, because they will not have a corresponding partner
        in the actual package.
        (Analyze_Formal_Package): Move the setting of the formal package spec's
        Generic_Parent field so that it occurs prior to analyzing the package,
        to allow proper operation of Install_Parent_Private_Declarations.
        (Analyze_Package_Instantiation): Set the instantiated package entity's
        Package_Instantiation field.
        (Get_Package_Instantiation_Node): Move declaration to package spec.
        Retrieve the N_Package_Instantiation node when the Package_Instantiation
        field is present.
        (Check_Generic_Child_Unit): Within an inlined call, the only possible
        instantiation is Unchecked_Conversion, for which no parents are needed.
        (Inline_Instance_Body): Deinstall and record the use_clauses for all
        parent scopes of a scope being removed prior to inlining an instance
        body.
        (Analyze_Package_Instantiation): Do not perform front-end inlining when
        the current context is itself an instance within a non-instance child
        unit, to prevent scope stack errors.
        (Save_References): If the node is an aggregate that is an actual in a
        call, rewrite as a qualified expression to preserve some type
        information, to resolve possible ambiguities in the instance.
        (Instance_Parent_Unit): New global variable to record the ultimate
        parent unit associated with a generic child unit instance (associated
        with the existing Parent_Unit_Visible flag).
        (type Instance_Env): New component Instance_Parent_Unit for stacking
        parents recorded in the global Instance_Parent_Unit.
        (Init_Env): Save value of Instance_Parent_Unit in the Instance_Env
        stack.
        (Install_Spec): Save the parent unit entity in Instance_Parent_Unit when
        it's not a top-level unit, and only do this if Instance_Parent_Unit is
        not already set. Replace test of Is_Child_Unit with test of parent's
        scope against package Standard. Add comments and a ??? comment.
        (Remove_Parent): Revise condition for resetting Is_Immediately_Visible
        on a child instance parent to test that the parent equals
        Instance_Parent rather than simply checking that the unit is not a
        child unit.
        (Restore_Env): Restore value of Instance_Parent_Unit from Instance_Env.
        (Validate_Derived_Interface_Type_Instance): Verify that all ancestors of
        a formal interface are ancestors of the corresponding actual.
        (Validate_Formal_Interface_Type): Additional legality checks.
        (Analyze_Formal_Derived_Interface_Type): New procedure to handle formal
        interface types with ancestors.
        (Analyze_Formal_Package): If formal is a renaming, use renamed entity
        to diagnose attempts to use generic within its own declaration.

2005-11-14  Ed Schonberg  <schonberg@adacore.com>
            Javier Miranda  <miranda@adacore.com>

        * sem_ch3.ads, sem_ch3.adb (Build_Discriminal): Add link to original
        discriminant.
        (Build_Private_Derived_Type): The entity of the created full view of the
        derived type does not come from source. If after installing the private
        declarations of the parent scope the parent is still private, use its
        full view to construct the full declaration of the derived type.
        (Build_Derived_Record_Type): Relax the condition that controls the
        execution of the check that verifies that the partial view and
        the full view agree in the set of implemented interfaces. In
        addition, this test now only takes into account the progenitors.
        (Derive_Interface_Subprograms): No need to derive subprograms
        of ancestors that are interfaces.
        (Derive_Subprograms): Remove formal No_Predefined_Prims and the
        associated code.
        Change name Is_Package to Is_Package_Or_Generic_Package
        (Complete_Subprograms_Derivation): Handle the case in which the full
        view is a transitive derivation of the ancestor of the partial view.
        (Process_Full_View): Rename local subprogram Find_Interface_In_
        Descendant to Find_Ancestor_Interface to leave the code more clear.
        Remove wrong code that avoids the generation of an error message
        when the immediate ancestor of the partial view is an interface.
        In addition some minor reorganization of the code has been done to
        leave it more clear.
        (Analyze_Type_Declaration): If type has previous incomplete tagged
        partial view, inherit properly its primitive operations.
        (Collect_Interfaces): Make public, for analysis of formal
        interfaces.
        (Analyze_Interface_Declaration): New procedure for use for regular and
        formal interface declarations.
        (Build_Derived_Record_Type): Add support for private types to the code
        that checks if a tagged type implements abstract interfaces.
        (Check_Aliased_Component_Type): The test applies in the spec of an
        instance as well.
        (Access_Type_Declaration): Clean up declaration of malformed type
        declared as an access to its own classwide type, to prevent cascaded
        crash.
        (Collect_Interfaces): For private extensions and for derived task types
        and derived protected types, the parent may be an interface that must
        be included in the interface list.
        (Access_Definition): If the designated type is an interface that may
        contain tasks, create Master_Id for it before analyzing the expression
        of the declaration, which may be an allocator.
        (Record_Type_Declaration): Set properly the interface kind, for use
        in allocators, the creation of master id's for task interfaces, etc.

2005-11-14  Javier Miranda  <miranda@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb (Check_Conformance): The null-exclusion feature can be
        omitted in case of stream attribute subprograms.
        (Check_Inline_Pragma): Handle Inline and Inline_Always pragmas that
        appear immediately after a subprogram body, when there is no previous
        subprogram declaration.
        Change name Is_Package to Is_Package_Or_Generic_Package
        (Process_Formals): A non null qualifier on a non null named access
        type is not an error, and is a warning only if Redundant_Constructs
        are flagged.

2005-11-14  Gary Dismukes  <dismukes@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>

        * sem_ch7.adb (Install_Parent_Private_Declarations): New procedure
        nested within Analyze_Package_Specification to install the private
        declarations and use clauses within each of the parent units of a
        package instance of a generic child package.
        (Analyze_Package_Specification): When entering a private part of a
        package associated with a generic instance or formal package, the
        private declarations of the parent must be installed (by calling new
        procedure Install_Parent_Private_Declarations).
        Change name Is_Package to Is_Package_Or_Generic_Package
        (Preserve_Full_Attributes): For a synchronized type, the corresponding
        record is absent in a generic context, which does not indicate a
        compiler error.

2005-11-14  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch8.adb (Analyze_Subprogram_Renaming): In a generic context, do
        not try to rewrite a renamed stream attribute, because the operations
        on the type may not have been generated.
        Handle properly a renaming_as_body generated for a stream operation
        whose default is abstract because the object type itself is abstract.
        (Find_Type): If the type is incomplete and appears as the prefix of a
        'Class reference, it is tagged, and its list of primitive operations
        must be initialized properly.
        (Chain_Use_Clauses): When chaining the use clauses that appear in the
        private declaration of a parent unit, prior to compiling the private
        part of a child unit, find on the scope stack the proper parent entity
        on which to link the use clause.
        (Note_Redundant_Use): Emit a warning when a redundant use clause is
        detected.
        (Analyze_Object_Renaming): An attribute reference is not a legal object
        if it is not a function call.

2005-11-14  Robert Dewar  <dewar@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>

        * sem_eval.adb: Implement d.f flag
        (Subtype_Statically_Match): A generic actual type has unknown
        discriminants when the corresponding actual has a similar partial view.
        If the routine is called to validate the signature of an inherited
        operation in a child instance, the generic actual matches the full view,

2005-11-14  Hristian Kirtchev  <kirtchev@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>
            Robert Dewar  <dewar@adacore.com>
            Thomas Quinot  <quinot@adacore.com>

        * sem_res.adb (Resolve_Call): Provide a better error message whenever
        a procedure call is used as a select statement trigger and is not an
        entry renaming or a primitive of a limited interface.
        (Valid_Conversion): If the operand has a single interpretation do not
        remove address operations.
        (Check_Infinite_Recursion): Skip freeze nodes when looking for a raise
        statement to inhibit warning.
        (Resolve_Unary_Op): Do not produce a warning when
        processing an expression of the form -(A mod B)
        Use Universal_Real instead of Long_Long_Float when we need a high
        precision float type for the generated code (prevents gratuitous
        Vax_Float stuff when pragma Float_Representation (Vax_Float) used)
        (Resolve_Concatenation_Arg): Improve error message when argument is an
        ambiguous call to a function that returns an array.
        (Make_Call_Into_Operator, Operand_Type_In_Scope): Do not check that
        there is an implicit operator in the given scope if we are within an
        instance: legality check has been performed on the generic.
        (Resolve_Unary_Op): Apply warnings checks on argument of Abs operator
        after resolving operand, to avoid false warnings on overloaded calls.

2005-11-14  Ed Schonberg  <schonberg@adacore.com>
            Javier Miranda  <miranda@adacore.com>

        PR ada/15604

        * sem_type.adb (Covers): In an inlined body, a composite type matches
        a private type whose full view is a composite type.
        (Interface_Present_In_Ancestor): Protect the frontend against
        previously detected errors to ensure that its compilation
        with assertions enabled gives the same output that its
        compilation without assertions.
        (Interface_Present_In_Ancestor): Add support for private types.
        Change name In_Actual to In_Generic_Actual (clean up)
        (Disambiguate): New predicate In_Actual, to recognize expressions that
        appear in the renaming declaration generated for generic actuals, and
        which must be resolved in the outer context.

2005-11-14  Robert Dewar  <dewar@adacore.com>
            Thomas Quinot  <quinot@adacore.com>
            Hristian Kirtchev  <kirtchev@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>

        * sem_util.ads, sem_util.adb: Change name Is_Package to
        Is_Package_Or_Generic_Package.
        (Check_Obsolescent): New procedure.
        (Set_Is_Public): Remove obsolete junk test.
        (Set_Public_Status): Do not set Is_Public on an object whose declaration
        occurs within a handled_sequence_of_statemets.
        (Is_Controlling_Limited_Procedure): Factor some of the logic, account
        for a parameterless procedure.
        (Enter_Name): Recognize renaming declarations created for private
        component of a protected type within protected operations, so that
        the source name of the component can be used in the debugger.

2005-11-14  Ed Schonberg  <schonberg@adacore.com>
            Robert Dewar  <dewar@adacore.com>

        * sem_warn.ads, sem_warn.adb (Publicly_Referenceable): Generic formals
        of a generic subprogram are not visible outside the body.
        (Set_Warning_Switch): New procedure (code to set warning mode moved
        here from Switch.C so that it can be shared by pragma processing.
        (Check_References): Special case warning for non-modified non-imported
        volatile objects.
        * par-prag.adb: Modify processing of pragma Warnings to accomodate new
        form with a string literal argument

2005-11-14  Javier Miranda  <miranda@adacore.com>

        * s-finroo.ads, s-finroo.adb (Read): Addition of "not null" to the
        anonymous access.
        (Write): Addition of "not null" to the anonymous access.
        (Read): Addition of "not null" to the anonymous access.
        (Write): Addition of "not null" to the anonymous access.

        * s-strxdr.adb, s-stratt.ads, s-stratt.adb (I_AD, I_AS, I_B, I_C, I_F,
        I_I, I_LF, I_LI, I_LLF, I_LLI, I_LLU, I_LU, I_SF, I_SI, I_SSI, I_SSU,
        I_SU, I_U, I_WC): Addition of "not null" to the anonymous access.
        (W_AD, W_AS, W_B, W_C, W_F, W_I, W_LF, W_LI, W_LLF, W_LLI, W_LLU,
        W_LU, W_SF, W_SI, W_SSI, W_SSU, W_SU, W_U, W_WC): Addition of
        "not null" to the anonymous access.

2005-11-14  Robert Dewar  <dewar@adacore.com>

        * s-stoele.adb: Fix code for Address mod Storage_Offset for negative
        offset values

2005-11-14  Vincent Celier  <celier@adacore.com>

        * switch.adb (Bad_Switch): New procedure
        (Scan_Nat, Scan_Pos): Directly call Osint.Fail with the appropriate
        message when in error.

        * switch.ads (Bad_Switch, Bad_Switch_Value, Missing_Switch_Value,
        Too_Many_Output_Files): Remove declarations, no longer used.
        (Scan_Nat): New parameter Switch
        (Scan_Pos): Ditto
        (Bad_Switch): New procedure

        * switch-b.adb (Scan_Binder_Switches): Replace "raise Bad_Switch;"
        with call to new procedure Bad_Switch. Call Scan_Pos and Scan_Natwith
        new parameter Switch. Replace "raise Too_Many_Output_Files;" with call
        to Osint.Fail. Do not handle any exception.

2005-11-14  Vincent Celier  <celier@adacore.com>

        * tempdir.adb (Tempdir): Do not use environment variable TMPDIR if it
        designates a non existent directory.

2005-11-14  Robert Dewar  <dewar@adacore.com>

        * xgnatugn.adb: Replace invalid membership test by 'Valid

2005-11-14  Vincent Celier  <celier@adacore.com>

        * makegpr.adb (Gprmake): Do not attempt to build the global archive if
        there is no object directory.

2005-11-14  Robert Dewar  <dewar@adacore.com>

        * usage.adb: Minor adjustment to output format, use nn instead of nnn
        (so that -gnateInnn does not run into next column)

2005-11-14  Ed Falis  <falis@adacore.com>

        * s-bitops.adb (Bits_Array): corrected comment: "unconstrained" =>
        "constrained"

2005-11-14  Cyrille Comar  <comar@adacore.com>

        * s-chepoo.ads: Add comments on Dereference.
        Remove unnecessary inherited abstract primitives.
        Cosmetic cleanup.

2005-11-14  Robert Dewar  <dewar@adacore.com>

        * sem_cat.ads (Validate_Access_Type_Declaration): Remove declaration
        node parameter, not needed, since it is available as Declaration_Node.

2005-11-14  Geert Bosch  <bosch@adacore.com>

        * s-exnllf.adb (Exn_LLF): Fix comment to be more precise and
        grammatically correct.

2005-11-14  Vincent Celier  <celier@adacore.com>

        * s-fileio.ads: Correct spelling error in comment

2005-11-14  Cyrille Comar  <comar@adacore.com>
            Robert Dewar  <dewar@adacore.com>
            Vincent Celier  <celier@adacore.com>
            Ben Brosgol  <brosgol@adacore.com>
            Jose Ruiz  <ruiz@adacore.com>
            Pascal Obry  <obry@adacore.com>

        * gnat_ugn.texi: 
        Document that -fstack-check is needed for strict compliance with the
        Ada 95 Reference Manual.
        Correct reference to VAX systems to meet HP guidelines
        Add documentation for new gnatmake switches -vl, -vm and -vh
        Replace DEC Ada by HP Ada
        Replace DIGITAL by HP
        Remove empty section on tools in compatibility section
        Clarify the Windows convention semantics.
        Document the Win32 calling convention.
        The Stdcall, Win32 and DLL convention are synonyms.
        Add a note in -gnatR description about zero size record components
        Note on new >= and <= warnings for -gnatwc
        Document that equal sign after -gnatm is optional.
        Note that strip is working fine on DLL built with a Library
        Project. The restriction apply only to DLL built with gnatdll.
        Update section about the way to debug a DLL.
        Update information about the DLL convention.
        Document -C switch for gnatprep
        Document new attribute Library_ALI_Dir
        Update elaboration doc to include implicit Elaborate pragmas now
        generated for subprogram instantiations.
        Document limitation on executable names that include spaces for --GCC,
        --GNATBIND, and --GNATLINK switches.
        Document that -w causes -gnatws to be added at start of gcc switches

        * gnat_rm.texi: Document that -mieee is needed for generating infinite
        and NaN values in case of overflow on machines that are not fully
        compliant with the IEEE floating-point standard.
        Create a section describing the set of compiler options needed for
        strict compliance with the Ada 95 Reference Manual.
        Add documentation for pragma Obsolescent applied to a package
        Clarify potential issues of mixed language programs related to the
        I/O buffering enabling in the elaboration of the GNAT runtime.
        Add extra documentation for pragma Restrictions (No_Elaboration_Code)
        This documentation only patch adds extra documentsion for pragma
        Restrictions (No_Elaboration_Code), explaining why it is not possible
        to document this restriction in terms of allowed source constructs.
        Document string literal form of pragma Warnings
        Document new attribute Library_ALI_Dir
        Add documentation on stable attributes in project files that was missing

        * gnat-style.texi: Indicate that paragraphs within a single comment
        should be separated by empty comment lines

        * ug_words: Added replacements for -gnat95 and -gnat05 (/95 and
        /05 respectively)

        * bindusg.adb: Minor cleanup, put -m before -M for consistency

2005-11-14  Robert Dewar  <dewar@adacore.com>

        * a-secain.adb, a-slcain.adb, a-shcain.adb, a-chtgke.ads, a-chtgke.adb,
        a-stwiha.adb, a-strhas.adb, a-chzla1.ads, a-chzla9.ads, a-stzbou.adb,
        a-stzbou.ads, a-stzfix.adb, a-stzhas.adb, a-stzmap.adb, a-stzmap.ads,
        a-stzsea.adb, a-stzsea.ads, a-stzsup.adb, a-stzsup.ads, a-stzunb.adb,
        a-stzunb.ads, a-szuzha.adb, a-szuzha.ads, a-szuzti.adb, a-szuzti.ads,
        a-ztcoau.adb, a-ztcoau.ads, a-ztcoio.adb, a-ztcstr.adb, a-ztcstr.ads,
        a-ztdeau.adb, a-ztdeau.ads, a-ztdeio.adb, a-ztdeio.ads, a-ztedit.adb,
        a-ztedit.ads, a-ztenau.ads, a-ztenio.adb, a-ztenio.ads, a-ztexio.adb,
        a-ztexio.ads, a-ztfiio.adb, a-ztfiio.ads, a-ztflau.adb, a-ztflau.ads,
        a-ztflio.adb, a-ztflio.ads, a-ztgeau.adb, a-ztgeau.ads, a-ztinau.adb,
        a-ztinau.ads, a-ztinio.adb, a-ztmoau.ads, a-ztmoio.adb, a-ztmoio.ads,
        a-zttest.adb, g-enblsp-vms-alpha.adb, g-enblsp-vms-alpha.adb,
        g-enblsp-vms-ia64.adb, g-enblsp-vms-ia64.adb, system-linux-hppa.ads,
        a-chacon.adb, a-chacon.ads, a-wichun.adb, a-wichun.ads, a-zchuni.adb,
        a-zchuni.ads, g-trasym-vms-alpha.adb, g-trasym-vms-ia64.adb,
        system-hpux-ia64.ads, g-soccon-unixware.ads, g-soliop-unixware.ads,
        g-soccon-interix.ads, g-soliop-solaris.ads, g-eacodu-vms.adb,
        g-expect-vms.adb, g-socthi-vms.adb, g-soliop-mingw.ads,
        a-intnam-unixware.ads, a-intnam-lynxos.ads, a-intnam-tru64.ads,
        a-intnam-aix.ads, a-intnam-linux.ads, a-intnam-linux.ads,
        a-intnam-dummy.ads, a-numaux-libc-x86.ads, a-intnam-interix.ads,
        a-intnam-solaris.ads, a-calend-vms.adb, a-calend-vms.ads,
        a-intnam-vms.ads, a-calend-mingw.adb, a-intnam-mingw.ads,
        a-intnam-vxworks.ads, a-numaux-vxworks.ads, system-unixware.ads,
        system-linux-ia64.ads, a-intnam-freebsd.ads, system-freebsd-x86.ads,
        system-lynxos-ppc.ads, system-linux-x86_64.ads, a-stunha.adb,
        a-cgaaso.ads, a-cgaaso.adb, a-chtgop.adb, a-cgcaso.adb, a-cgarso.adb,
        a-cohata.ads, a-crbtgk.adb, a-crbltr.ads, a-coprnu.adb, a-rbtgso.adb,
        a-intnam-darwin.ads, system-darwin-ppc.ads, gprmake.adb, makegpr.ads,
        system-tru64.ads, system-aix.ads, system-solaris-x86.ads,
        system-irix-o32.ads, s-interr-sigaction.adb, system-irix-n32.ads,
        s-parame-mingw.adb, system-hpux.ads, s-traceb-hpux.adb,
        system-linux-x86.ads, s-inmaop-dummy.adb, system-os2.ads,
        system-interix.ads, system-solaris-sparc.ads,
        system-solaris-sparcv9.ads, s-inmaop-vms.adb,
        s-mastop-vms.adb, expander.adb, expander.ads, s-gloloc-mingw.adb,
        system-mingw.ads, system-vms-zcx.ads, s-osinte-fsu.adb,
        s-traceb-mastop.adb, a-exextr.adb, a-exstat.adb, a-filico.ads,
        a-finali.ads, a-interr.ads, a-intsig.adb, a-intsig.ads,
        a-except.ads, a-numaux-x86.ads, a-astaco.adb, a-calend.adb,
        a-calend.ads, a-chahan.adb, a-chahan.ads, a-chlat9.ads,
        a-colien.adb, a-colien.ads, a-colire.adb, a-colire.ads,
        a-comlin.adb, a-comlin.ads, a-cwila1.ads, a-cwila9.ads,
        a-elchha.adb, a-decima.adb, a-decima.ads, a-diocst.ads,
        a-direio.adb, a-direio.ads, a-excach.adb, a-excach.adb,
        a-exctra.ads, ali-util.adb, a-ngcefu.adb, a-ngcoty.adb,
        a-ngcoty.ads, a-nudira.adb, a-nudira.ads, a-nuflra.adb,
        a-numaux.ads, a-reatim.ads, a-sequio.adb, a-sequio.ads,
        a-siocst.ads, a-ssicst.ads, a-stmaco.ads, a-storio.adb,
        a-strbou.adb, a-strbou.ads, a-stream.ads, a-strfix.adb,
        a-strmap.adb, a-strmap.ads, a-strsea.adb, a-strsea.ads,
        a-strsup.adb, a-strsup.ads, a-strunb.adb, a-strunb.ads,
        a-stwibo.adb, a-stwibo.ads, a-stwifi.adb, a-stwima.adb,
        a-stwima.ads, a-stwise.adb, a-stwise.ads, a-stwisu.adb,
        a-stwisu.ads, a-stwiun.adb, a-stwiun.ads, a-suteio.adb,
        a-suteio.ads, a-swmwco.ads, a-swuwti.adb, a-swuwti.ads,
        a-sytaco.adb, a-sytaco.ads, a-tasatt.adb, a-taside.adb,
        a-taside.ads, a-teioed.adb, a-textio.adb, a-textio.ads,
        a-ticoau.adb, a-ticoau.ads, a-ticoio.adb, a-tideau.adb,
        a-tideio.adb, a-tienau.adb, a-tienio.adb, a-tifiio.adb,
        a-tiflio.adb, a-tigeau.adb, a-tigeau.ads, a-tiinau.adb,
        a-tiinio.adb, a-timoau.adb, a-timoio.adb, a-timoio.ads,
        a-tiocst.ads, a-titest.adb, atree.adb, a-witeio.adb,
        a-witeio.ads, a-wtcoau.adb, a-wtcoau.ads, a-wtcoio.adb,
        a-wtcstr.ads, a-wtdeau.adb, a-wtdeio.adb, a-wtedit.adb,
        a-wtedit.ads, a-wtenau.adb, a-wtenio.adb, a-wtfiio.adb,
        a-wtflio.adb, a-wtgeau.adb, a-wtinau.adb, a-wtinio.adb,
        a-wtmoau.adb, a-wtmoio.adb, a-wttest.adb, back_end.adb,
        bindgen.adb, butil.adb, butil.ads, checks.ads, cio.c, comperr.adb,
        csets.ads, cstand.adb, debug.ads, elists.ads, errno.c, errout.adb,
        errout.ads, erroutc.adb, erroutc.ads, errutil.adb, errutil.ads,
        errutil.ads, err_vars.ads, eval_fat.adb, exp_ch11.adb, exp_ch11.ads,
        exp_ch2.adb, exp_ch7.ads, exp_imgv.ads, exp_pakd.adb, exp_prag.adb,
        exp_prag.ads, exp_tss.adb, exp_tss.ads, exp_vfpt.ads, fe.h, fmap.adb,
        freeze.ads, frontend.adb, frontend.ads, g-arrspl.adb, g-arrspl.ads,
        g-awk.adb, g-awk.ads, g-boumai.ads, g-calend.adb, g-calend.ads,
        g-catiio.adb, g-comlin.adb, g-comlin.ads, g-comlin.ads, g-comlin.ads,
        g-comver.adb, g-crc32.adb, g-crc32.ads, g-ctrl_c.ads, g-curexc.ads,
        g-debpoo.ads, g-debuti.adb, g-diopit.adb, g-diopit.ads, g-dirope.adb,
        g-dirope.ads, g-dyntab.adb, g-dyntab.ads, g-excact.adb, g-excact.ads,
        g-except.ads, g-exctra.adb, g-exctra.ads, g-expect.ads, g-flocon.ads,
        g-hesorg.ads, g-io.adb, g-locfil.ads, g-md5.adb, g-md5.ads, g-md5.ads,
        g-moreex.adb, g-signal.ads, g-signal.adb, gnatbind.ads, gnatchop.adb,
        gnatcmd.adb, gnatfind.adb, gnatlbr.adb, gnatmake.ads, gnatmem.adb,
        gnatprep.adb, gnatprep.ads, gnatsym.adb, gnatxref.adb, g-os_lib.adb,
        g-os_lib.ads, g-pehage.adb, g-pehage.ads, gprep.ads, g-regexp.adb,
        g-regexp.ads, g-regist.adb, g-regist.ads, g-regpat.ads, g-semaph.adb,
        g-socthi.adb, g-soliop.ads, g-spipat.adb, g-spipat.ads, g-sptabo.ads,
        g-sptain.ads, g-sptavs.ads, g-string.ads, g-tasloc.adb, g-tasloc.ads,
        g-trasym.adb, g-trasym.ads, i-fortra.adb, i-fortra.ads, inline.adb,
        layout.adb, live.adb, make.ads, makeutl.ads, makeutl.adb, mdll-fil.adb,
        mdll-fil.ads, mdll-utl.ads, memroot.ads, memtrack.adb, mlib.ads,
        mlib-fil.adb, mlib-fil.ads, mlib-prj.ads, mlib-utl.adb, mlib-utl.ads,
        nlists.adb, nlists.ads, osint.adb, osint.ads, osint-c.adb, osint-l.adb,
        osint-l.ads, osint-m.ads, output.adb, par.adb, par.adb, par.ads,
        par-ch11.adb, par-ch12.adb, par-ch2.adb, par-ch4.adb, par-ch5.adb,
        par-ch6.adb, par-ch9.adb, par-endh.adb, par-labl.adb, par-load.adb,
        par-tchk.adb, prep.adb, prepcomp.adb, prepcomp.ads, prj-attr.ads,
        prj-com.ads, prj-dect.adb, prj-dect.ads, prj-env.ads, prj-err.ads,
        prj-ext.ads, prj-makr.adb, prj-makr.ads, prj-nmsc.ads, prj-pars.adb,
        prj-pars.ads, prj-part.ads, prj-pp.ads, prj-proc.ads, prj-strt.adb,
        prj-strt.ads, prj-tree.adb, prj-util.adb, prj-util.ads, rtsfind.adb,
        sem.adb, sem.ads, sem_case.adb, sem_case.ads, sem_ch11.adb,
        sem_ch4.adb, sem_ch6.ads, sem_ch7.ads, sem_dist.ads, sem_elab.ads,
        sem_elim.ads, sem_eval.ads, sem_intr.ads, sem_maps.adb, sem_maps.ads,
        sem_maps.ads, sem_res.ads, sem_type.ads, sfn_scan.adb, sfn_scan.ads,
        s-imgwch.ads, s-imgwiu.adb, s-imgwiu.ads, s-inmaop.ads, sinput.adb,
        sinput.ads, s-pack03.adb, s-pack03.ads, s-pack05.adb, s-pack05.ads,
        s-pack06.adb, s-pack06.ads, s-pack07.adb, s-pack07.ads, s-pack09.adb,
        s-pack09.ads, s-pack10.adb, s-pack10.ads, s-pack11.adb, s-pack11.ads,
        s-pack12.adb, s-pack12.ads, s-pack13.adb, s-pack13.ads, s-pack14.adb,
        s-pack14.ads, s-pack15.adb, s-pack15.ads, s-pack17.adb, s-pack17.ads,
        s-pack18.adb, s-pack18.ads, s-pack19.adb, s-pack19.ads, s-pack20.adb,
        s-pack20.ads, s-pack21.adb, s-pack21.ads, s-pack22.adb, s-pack22.ads,
        s-pack23.adb, s-pack23.ads, s-pack24.adb, s-pack24.ads, s-pack25.adb,
        s-pack25.ads, s-pack26.adb, s-pack26.ads, s-pack27.adb, s-pack27.ads,
        s-pack28.adb, s-pack28.ads, s-pack29.adb, s-pack29.ads, s-pack30.adb,
        s-pack30.ads, s-pack31.adb, s-pack31.ads, s-pack33.adb, s-pack33.ads,
        s-pack34.adb, s-pack34.ads, s-pack35.adb, s-pack35.ads, s-pack36.adb,
        s-pack36.ads, s-pack37.adb, s-pack37.ads, s-pack38.adb, s-pack38.ads,
        s-pack39.adb, s-pack39.ads, s-pack40.adb, s-pack40.ads, s-pack41.adb,
        s-pack41.ads, s-pack42.adb, s-pack42.ads, s-pack43.adb, s-pack43.ads,
        s-pack44.adb, s-pack44.ads, s-pack45.adb, s-pack45.ads, s-pack46.adb,
        s-pack46.ads, s-pack47.adb, s-pack47.ads, s-pack48.adb, s-pack48.ads,
        s-pack49.adb, s-pack49.ads, s-pack50.adb, s-pack50.ads, s-pack51.adb,
        s-pack51.ads, s-pack52.adb, s-pack52.ads, s-pack53.adb, s-pack53.ads,
        s-pack54.adb, s-pack54.ads, s-pack55.adb, s-pack55.ads, s-pack56.adb,
        s-pack56.ads, s-pack57.adb, s-pack57.ads, s-pack58.adb, s-pack58.ads,
        s-pack59.adb, s-pack59.ads, s-pack60.adb, s-pack60.adb, s-pack60.ads,
        s-pack61.adb, s-pack61.ads, s-pack62.adb, s-pack62.ads, s-pack63.adb,
        s-pack63.ads, s-parint.adb, s-parint.adb, s-parint.ads, sprint.ads,
        s-purexc.ads, s-restri.ads, s-restri.adb, s-scaval.adb, s-scaval.ads,
        s-secsta.adb, s-secsta.ads, s-sequio.adb, s-sequio.ads, stand.ads,
        s-tasuti.adb, s-traceb.adb, s-traceb.ads, stringt.adb, stringt.ads,
        styleg.ads, s-valboo.adb, s-valboo.ads, s-valcha.adb, s-valcha.ads,
        s-valdec.adb, s-valdec.ads, s-valint.adb, s-valint.ads, s-valint.ads,
        s-vallld.adb, s-vallld.ads, s-vallli.adb, s-vallli.ads, s-valllu.adb,
        s-valllu.ads, s-valrea.adb, s-valrea.ads, s-valuns.adb, s-valuns.ads,
        s-valuti.adb, s-valuti.ads, s-valwch.ads, s-veboop.adb, s-veboop.ads,
        s-vercon.adb, s-vercon.ads, s-wchcnv.adb, s-wchcnv.ads, s-wchcon.ads,
        s-wchjis.adb, s-wchjis.ads, s-wchstw.adb, s-wchstw.adb, s-wchstw.ads,
        s-wchwts.adb, s-wchwts.ads, s-widboo.adb, s-widboo.ads, s-widcha.adb,
        s-widcha.ads, s-widenu.adb, s-widenu.ads, s-widlli.adb, s-widlli.ads,
        s-widllu.adb, s-widllu.ads, s-widwch.adb, s-widwch.ads, s-wwdcha.adb,
        s-wwdcha.ads, s-wwdenu.adb, s-wwdenu.ads, symbols.adb, symbols.ads,
        table.ads, targparm.adb, targparm.ads, tb-alvms.c, tb-alvxw.c,
        tbuild.adb, tree_io.ads, treepr.adb, treeprs.adt, ttypef.ads,
        ttypes.ads, types.adb, uintp.adb, uintp.ads, uname.ads, urealp.ads,
        usage.ads, validsw.ads, vxaddr2line.adb, widechar.adb, widechar.ads,
        xeinfo.adb, xnmake.adb, xref_lib.ads, xr_tabls.adb, xr_tabls.ads,
        xsinfo.adb, xtreeprs.adb, xsnames.adb, vms_conv.ads, vms_conv.adb,
        a-dirval.ads, a-dirval.adb, a-dirval-mingw.adb, a-direct.ads,
        a-direct.adb, indepsw.ads, prj-attr-pm.ads, system-linux-ppc.ads,
        a-numaux-darwin.ads, a-numaux-darwin.adb,
        a-swuwha.ads, a-stunha.ads: Minor reformatting

2005-11-14  Robert Dewar  <dewar@adacore.com>

        PR ada/18434
        * osint-m.adb: Add pragma Elaborate_All for Osint

2005-11-10  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/23995
        * trans.c (call_to_gnu): Restore statement lost in translation.

2005-11-08  Eric Botcazou  <ebotcazou@adacore.com>

        * init.c: Use the Linux-specific section for the IA-64/Linux target.
        (__gnat_adjust_context_for_raise): Add conditional code so that the
        IA-64 is also supported.

2005-11-03  James E Wilson  <wilson@specifix.com>

        PR ada/23427
        * trans.c (gnat_to_gnu): Use TYPE_SIZE_UNIT not TYPE_SIZE in
        TREE_OVERFLOW check.

2005-09-21  Olivier Hainque  <hainque@adacore.com>

        PR ada/22418
        * decl.c (maybe_pad_type): Use proper bitsizetype for XVZ objects,
        as we create them to store a size in bits.

2005-10-21  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/21937
        PR ada/22328
        PR ada/22381
        PR ada/22383
        PR ada/22419
        PR ada/22420
        * utils2.c (build_return_expr): New helper function.
        * gigi.h (build_return_expr): Declare it.
        * trans.c (Subprogram_Body_to_gnu): Use build_return_expr instead
        of manually building the RETURN_EXPR tree.
        (call_to_gnu): Pass MODIFY_EXPR through build_binary_op.
        (gnat_to_gnu) <N_Return_Statement>: Pass MODIFY_EXPR through
        build_binary_op for the "target pointer" case.  Use build_return_expr
        instead of manually building the RETURN_EXPR tree.

2005-09-16  Laurent GUERBY  <laurent@guerby.net>

        PR ada/23788
        * s-tpinop.ads: Make this unit Preelaborate.

2005-09-16  Andreas Jaeger  <aj@suse.de>

        * socket.c: Add string.h for memcpy.

2005-09-05  Arnaud Charlet  <charlet@adacore.com>

        * dec-io.ads, dec-io.adb: Removed, no longer used.

2005-09-01  Arnaud Charlet  <charlet@adacore.com>

        * a-calend-mingw.adb: Add call to OS_Primitives.Initialize;

        * s-taprop-mingw.adb, s-taprop-vms.adb, s-taprop-solaris.adb,
        s-taprop-os2.adb, s-taprop-irix-athread.adb, s-taprop-linux.adb,
        s-taprop-hpux-dce.adb, s-taprop-irix.adb, s-taprop-tru64.adb,
        s-taprop-lynxos.adb: Move with clauses outside Warnings Off now that
        dependent units are Preelaborate.
        (Initialize): Call Interrupt_Managemeent.Initialize and
        OS_Primitives.Initialize to ensure proper initialization of this unit.
        Remove use of System.Soft_Links
        Make this unit Preelaborate.

        * s-stache.ads, s-taspri-vxworks.ads, s-taspri-mingw.ads,
        s-taspri-vms.ads, s-tasinf-solaris.ads, s-taspri-os2.ads,
        s-taspri-lynxos.ads, s-taspri-hpux-dce.ads, s-taspri-tru64.ads,
        s-tasinf-tru64.ads, s-tasinf-irix.ads, s-tasinf-irix-athread.ads,
        s-proinf-irix-athread.adb, s-proinf-irix-athread.ads,
        s-tratas.ads, s-tasinf.ads: Minor reformatting.
        Add pragma Preelaborate, since these packages are suitable for this
        categorization.
        Update comments.

        * s-traent-vms.ads, s-intman-dummy.adb,
        s-taprop-dummy.adb: Make this unit Preelaborate.

        * s-osprim-vxworks.adb, s-osprim-vms.adb, s-osprim-vms.ads,
        s-osprim-mingw.adb, s-intman-vxworks.ads, s-intman-vxworks.adb,
        s-intman-vms.adb, s-intman-mingw.adb, s-intman-vms.ads,
        s-osprim-unix.adb, s-osprim-os2.adb, s-osprim-solaris.adb,
        s-intman-solaris.adb, s-intman-irix-athread.adb,
        s-intman-irix.adb: Mark this unit Preelaborate.
        (Initialize): New procedure.
        Update comments.

        * s-taspri-linux.ads: Removed.

        * s-tpopsp-solaris.adb (Initialize): Create the key in this procedure,
        as done by other implementations (e.g. posix).

        * s-taprop.ads (Timed_Delay): Update spec since the caller now is
        responsible for deferring abort.
        Mark this unit Preelaborate.

        * s-taprob.adb, s-tarest.adb: Call System.Tasking.Initialize to ensure
        proper initialization of the tasking run-time.

        * s-tasdeb.ads: Mark this unit Preelaborate.
        (Known_Tasks): Add explicit default value to avoid elaboration code.

        * s-inmaop-vms.adb (Elaboration code): Add call to
        Interrupt_Management.Initialize since the elaboration code depends on
        proper initialization of this package.

        * s-intman.ads, s-inmaop-posix.adb, s-intman-posix.adb,
        s-osprim.ads, s-taprop-posix.adb, s-taspri-posix.ads,
        s-osprim-posix.adb: Make this unit Preelaborate.

        * a-calend.adb: Add call to OS_Primitives.Initialize

        * a-elchha.adb: Update use of Except.Id.Full_Name.
        Minor reformatting.
        Remove use of Ada.Exceptions.Traceback when possible, cleaner.

        * a-dynpri.adb, a-sytaco.adb, a-sytaco.ads:
        Move with clauses outside Warnings Off now that dependent units are
        Preelaborate.
        Use raise xxx with "..."; Ada 2005 form.

        * a-taside.ads, a-taside.adb:
        Remove some dependencies, to make it easier to make this unit truly
        Preelaborate.
        Rewrite some code to be conformant with Preelaborate rules.

        * g-os_lib.adb: Remove non-preelaborate code so that this unit can be
        marked Preelaborate in the future.

        * s-proinf.ads, g-string.ads, s-auxdec.ads, s-auxdec-vms_64.ads: Make
        these units Preelaborate.

        * s-exctab.adb: Update use of Except.Id.Full_Name.

        * s-soflin.ads, s-soflin.adb: Mark this unit Preelaborate_05.
        (Set_Exc_Stack_Addr_Soft, Get_Exc_Stack_Addr_NT, Set_Exc_Stack_Addr_NT,
        Set_Exc_Stack_Addr): Removed, no longer used.
        Remove reference to *Machine_State_Addr*, no longer needed.

        * s-stalib.ads: Mark this unit as Preelaborate[_05].
        (Exception_Data): Full_Name is now a System.Address so that this unit
        can be made Preelaborate.
        Clean up/simplify code thanks to Full_Name being a System.Address.
        Remove obsolete pragma Suppress (All_Checks), no longer needed.

        * s-taskin.ads, s-taskin.adb:
        Move with clauses outside Warnings Off now that dependent units are
        Preelaborate.
        Make this unit Preelaborate.
        (Initialize): New proceduure, replace elaboration code and makes the
        set up of the tasking run-time cleaner.
        (Detect_Blocking): Now a function instead of a deferred boolean, to
        obey Preelaborate rules.

        * s-tassta.adb (Finalize_Global_Tasks): Remove Get/Set_Exc_Stack_Addr
        soft links, no longer used.

        * s-traces.ads, s-traent.ads: Add pragma Preelaborate, since these
        packages are suitable for this categorization.

        * s-solita.adb: Replace use of Ada.Exception by raise xxx with "..."
        since we compile run-time sources in Ada 2005 mode.
        (Timed_Delay_T): Call Abort_Defer/Undefer around Timed_Delay, to
        avoid having s-taprop*.adb depend on s-soflin and to avoid code
        duplication.
        Remove reference to *Machine_State_Addr*, no longer needed.

2005-09-01  Arnaud Charlet  <charlet@adacore.com>

        * s-mastop-tru64.adb, s-mastop-irix.adb, s-mastop-vms.adb
        (Enter_Handler, Set_Signal_Machine_State): Removed, no longer used.
        Remove reference to System.Exceptions.

        * s-mastop-x86.adb: Removed, no longer used.

        * s-traceb-mastop.adb: Adjust calls to Pop_Frame.

        * a-excach.adb: Minor reformatting.

        * a-except.ads, a-except.adb: Remove global Warnings (Off) pragma, and
        instead fix new warnings that were hidden by this change.
        (AAA, ZZZ): Removed, replaced by...
        (Code_Address_For_AAA, Code_Address_For_ZZZ): ... these functions, who
        are used instead of constants, to help make Ada.Exception truly
        preelaborate.
        (Rcheck_*, Raise_Constraint_Error, Raise_Program_Error,
        Raise_Storage_Error): File is now a System.Address, to simplify code.
        (Elab code): Removed, no longer used.
        (Null_Occurrence): Remove Warnings Off and make this construct
        preelaborate.
        Remove code related to front-end zero cost exception handling, since
        it is no longer used.
        Remove -gnatL/-gnatZ switches.

        * a-exexda.adb (Append_Info_Exception_Name, Set_Exception_C_Msg):
        Update use of Except.Msg.

        * gnat1drv.adb, inline.adb, bindgen.adb, debug.adb, exp_ch11.ads,
        freeze.adb, frontend.adb, lib.adb, exp_ch11.adb: Remove code related
        to front-end zero cost exception handling, since it is no longer used.
        Remove -gnatL/-gnatZ switches.

        * lib-writ.ads: Minor reformatting
        Remove doc of UX

        * Makefile.rtl: Remove references to s-except*, s-mastop-x86*

        * Make-lang.in: Remove references to s-except.ads

        * s-except.ads: Removed, no longer used.

        * s-mastop.ads, s-mastop.adb:
        (Enter_Handler, Set_Signal_Machine_State): Removed, no longer used.
        Remove reference to System.Exceptions.

        * raise.h, usage.adb, targparm.adb, targparm.ads, switch-m.adb,
        switch-b.adb: Remove code related to front-end zero cost exception
        handling, since it is no longer used.
        Remove -gnatL/-gnatZ switches.

2005-09-01  Robert Dewar  <dewar@adacore.com>
            Gary Dismukes  <dismukes@adacore.com>
            Javier Miranda  <miranda@adacore.com>

        * exp_ch4.adb (Expand_N_In): Replace test of expression in its own
        type by valid test and generate warning.
        (Tagged_Membership): Generate call to the run-time
        subprogram IW_Membership in case of "Iface_CW_Typ in Typ'Class"
        Change formal name Subtype_Mark to Result_Definition in several calls to
        Make_Function_Specification.
        (Expand_Allocator_Expression): Add tests for suppression of the AI-344
        check for proper accessibility of the operand of a class-wide allocator.
        The check can be left out if checks are suppressed or if the expression
        has a specific tagged type whose level is known to be safe.

        * exp_ch5.adb (Expand_N_Assignment_Statement): Simplify the code that
        generates the run-time check associated with null-excluding entities.
        (Expand_N_Return_Statement): Add tests to determine if the accessibility
        check on the level of the return expression of a class-wide function
        can be elided. The check usually isn't needed if the expression has a
        specific type (unless it's a conversion or a formal parameter). Also
        add a test for whether accessibility checks are suppressed. Augment
        the comments to describe the conditions for performing the check.

2005-09-01  Hristian Kirtchev  <kirtchev@adacore.com>
            Javier Miranda  <miranda@adacore.com>
            Gary Dismukes  <dismukes@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>

        * a-tags.adb (IW_Membership): Give support to
        "Iface_CW_Typ in T'Class". For this purpose the functionality of this
        subprogram has been extended to look for the tag in the ancestors tag
        table.
        Update the structure of the GNAT Dispatch Table to reflect the
        additional two tables used in dispatching selects.
        Introduce appropriate array types and record components in
        Type_Specific_Data to reflect the two tables.
        (Get_Entry_Index, Set_Entry_Index): Retrieve and set the entry index in
        the TSD of a tag, indexed by position.
        (Get_Prim_Op_Kind, Set_Prim_Op_Kind): Retrieve and set the primitive
        operation kind in the TSD of a tag, indexed by position.

        * a-tags.ads: Introduce an enumeration type to capture different
        primitive operation kinds. Define a constant reflecting the number of
        predefined primitive operations.
        (Get_Entry_Index, Set_Entry_Index): Set and retrieve the entry index
        of an entry wrapper.
        (Get_Prim_Op_Kind, Set_Prim_Op_Kind): Set and retrieve the kind of
        callable entity of a primitive operation.

        * exp_ch3.adb (Freeze_Record_Type): Generate the declarations of the
        primitive operations used in dispatching selects for limited
        interfaces, limited tagged, task and protected types what implement a
        limited interface.
        (Freeze_Type): Generate the bodies of the primitive operations used in
        dispatching selects for limited tagged, task and protected types that
        implement a limited interface. Generate statements to populate the two
        auxiliary tables used for dispatching in select statements.
        (Freeze_Record_Type): Add call to initialize the dispatch table entries
        associated with predefined interface primitive operations.
        (Build_Dcheck_Function): Change Set_Subtype_Mark to
        Set_Result_Definition.
        (Build_Variant_Record_Equality): Change Subtype_Mark to
        Result_Definition.
        (Freeze_Enumeration_Type): Change Subtype_Mark to Result_Definition.
        (Predef_Spec_Or_Body): Change Subtype_Mark to Result_Definition.
        (Build_Assignment): Simplify the code that adds the run-time-check.
        (Expand_N_Object_Declaration): Code cleanup.

        * exp_ch7.adb (Make_Clean): Select the appropriate type for locking
        entries when there is a protected type that implements a limited
        interface.

        * exp_ch9.adb: Add package Select_Expansion_Utilities that contains
        common routines used in expansion of dispatching selects.
        (Add_Private_Declarations): Select the appropriate protection type when
        there is a protected type that implements a limited interface.
        (Build_Parameter_Block): Generate a wrapped parameter block.
        (Build_Protected_Subprogram_Body): Select the appropriate type for
        locking entries when there is a protected type that implements a
        limited interface.
        (Build_Wrapper_Spec): Set the flag and wrapped entity for procedures
        classified as entry wrappers.
        (Expand_N_Asynchronous_Select): Add support for expansion of dispatching
        asynchronous selects.
        (Expand_N_Conditional_Entry_Call): Add support for expansion of
        dispatching conditional selects.
        (Expand_N_Protected_Type_Declaration): Select the appropriate type for
        protection when there is a protected type that implements limited
        interfaces.
        (Expand_N_Timed_Entry_Call): Add support for expansion of dispatching
        timed selects.
        (Extract_Dispatching_Call): Extract the entity of the name of a
        dispatching call, the object parameter, actual parameters and
        corresponding formals.
        (Make_Initialize_Protection): Correct logic of protection initialization
        when there is a protected type that implements a limited interface.
        (Parameter_Block_Pack): Populate a wrapped parameter block with the
        values of actual parameters.
        (Parameter_Block_Unpack): Retrieve the values from a wrapped parameter
        block and assign them to the original actual parameters.

        * exp_ch9.ads (Subprogram_Protection_Mode): New type.
        (Build_Protected_Sub_Specification): Change the type and name of the
        last formal to account for the increased variety of protection modes.

        * einfo.ads, einfo.adb (Was_Hidden): New attribute. Present in all
        entities. Used to save the value of the Is_Hidden attribute when the
        limited-view is installed.
        (Is_Primitive_Wrapper, Set_Is_Primitive_Wrapper): Retrieve and change
        the attribute of procedures classified as entry wrappers.
        (Wrapped_Entity, Set_Wrapped_Entity): Retrieve and change the wrapped
        entity of a primitive wrapper.
        (Write_Entity_Flags): Output the name and value of the
        Is_Primitive_Wrapper attribute.
        (Write_Field27_Name): Output the name and entity of the field Wrapped_
        Entity.
        (Underlying_Type): If we have an incomplete entity that comes from
        the limited view then we return the Underlying_Type of its non-limited
        view if it is already available.
        (Abstract_Interface_Alias): Flag applies to all subrogram kinds,
        including operators.
        (Write_Field26_Name): Add entry for Overridden_Operation
        (Overridden_Operation): New attribute of functions and procedures.

        * exp_disp.ads, exp_disp.adb (Default_Prim_Op_Position): Return a
        predefined position in the dispatch table for the primitive operations
        used in dispatching selects.
        (Init_Predefined_Interface_Primitives): Remove the hardcoded number of
        predefined primitive operations and replace it with
        Default_Prim_Op_Count.
        (Make_Disp_Asynchronous_Select_Spec, Make_Disp_Conditional_Select_Spec,
        Make_Disp_Get_Prim_Op_Kind_Spec, Make_Disp_Timed_Select_Spec): Update
        the names of the generated primitive operations used in dispatching
        selects.
        (Init_Predefined_Interface_Primitives): No need to inherit primitives in
        case of abstract interface types. They will be inherit by the objects
        implementing the interface.
        (Make_DT): There is no need to inherit the dispatch table of the
        ancestor interface for the elaboration of abstract interface types.
        The dispatch table will be inherited by the object implementing the
        interface.
        (Copy_Secondary_DTs): Add documentation.
        (Validate_Position): Improve this static check in case of
        aliased subprograms because aliased subprograms must have
        the same position.
        (Init_Predefined_Interface_Primitives): New subprogram that initializes
        the entries associated with predefined primitives of all the secondary
        dispatch tables.
        (Build_Anonymous_Access_Type): Removed.
        (Expand_Interface_Actuals): With the previous cleanup there is no need
        to build an anonymous access type. This allows further cleanup in the
        code generated by the expander.
        (Expand_Interface_Conversion): If the actual is an access type then
        build an internal function to handle the displacement. If the actual
        is null this function returns null because no displacement is
        required; otherwise performs a type conversion that will be
        expanded in the code that returns the value of the displaced actual.
        (Expand_Interface_Actuals): Avoid the generation of unnecessary type
        conversions that have no effect in the generated code because no
        displacement is required. Code cleanup; use local variables to
        avoid repeated calls to the subprogram directly_designated_type().

        * exp_util.ads, exp_util.adb (Is_Predefined_Dispatching_Operation):
        Classify the primitive operations used in dispatching selects as
        predefined.
        (Implements_Limited_Interface): Determine whether some type either
        directly implements a limited interface or extends a type that
        implements a limited interface.
        (Build_Task_Image_Function): Change Subtype_Mark to Result_Definition.
        (Expand_Subtype_From_Expr): Do not build actual subtype if the
        expression is limited.
        (Find_Interface_Tag): Add code to handle class-wide types and
        entities from the limited-view.

        * rtsfind.ads: Add entries in RE_Id and RE_Unit_Table for
        Get_Entry_Index, Get_Prim_Op_Kind, POK_Function, POK_Procedure,
        POK_Protected_Entry, POK_Protected_Function, POK_Protected_Procedure,
        POK_Task_Entry, POK_Task_Procedure, Prim_Op_Kind, Set_Entry_Index,
        Set_Prim_Op_Kind.

        * sem_ch9.adb (Analyze_Triggering_Alternative): Check for legal type
        of procedure name or prefix that appears as a trigger in a triggering
        alternative.

        * uintp.ads: Introduce constants Uint_11 and Uint_13.

2005-09-01  Arnaud Charlet  <charlet@adacore.com>

        * s-tataat.adb, a-tasatt.adb:
        Replace calls to Defer/Undefer_Abortion by Defer/Undefer_Abort.

        * s-tasini.ads, s-tasini.adb (Defer_Abortion, Undefer_Abortion): Moved
        these procedures to body, and renamed Abort_Defer, Abort_Undefer.
        (Get_Exc_Stack_Addr, Set_Exc_Stack_Addr): Removed, no
        longer used.

2005-09-01  Arnaud Charlet  <charlet@adacore.com>
            Jose Ruiz  <ruiz@adacore.com>

        * s-taprop-vxworks.adb:
        Move with clauses outside Warnings Off now that dependent units are
        Preelaborate.
        (Initialize): Call Interrupt_Managemeent.Initialize to ensure proper
        initialization of this unit.
        (Specific): Add new procedures Initialize and Delete so that this
        package can be used for VxWorks 5.x and 6.x
        (ATCB_Key, ATCB_Key_Address): Moved to Specific package body to hide
        differences between VxWorks 5.x and 6.x
        Minor reformatting.
        (Timed_Delay): Remove calls to Defer/Undefer_Abort, now performed by
        caller.
        Use only Preelaborate-compatible constructs.

        * s-tpopsp-vxworks.adb (ATBC_Key, ATCB_Key_Addr): Moved from
        Primitives.Operations.
        (Delete, Initialize): New procedures.

        * s-osinte-vxworks.adb: Body used to handle differences between
        VxWorks 5.x and 6.x
        (kill, Set_Time_Slice, VX_FP_TASK): New functions.

        * s-osinte-vxworks.ads: Minor reformatting.
        Add VxWworks 6.x specific functions (only called from VxWorks 6 files).
        (VX_FP_TASK): Now a function, to handle differences between VxWorks 5
        and 6.
        (Set_Time_Slice): New function, replacing kerneltimeSlice to share code
        between Vxworks 5 and 6.
        (taskLock, taskUnlock): Removeed, no longer used.

        * adaint.c: The wait.h header is not located in the sys directory on
        VxWorks when using RTPs.
        (__gnat_set_env_value): Use setenv instead of putenv on VxWorks when
        using RTPs.
        (__gnat_dup): dup is available on Vxworks when using RTPs.
        (__gnat_dup2): dup2 is available on Vxworks when using RTPs.

        * cal.c: Use the header time.h for Vxworks 6.0 when using RTPs.

        * expect.c: The wait.h header is not located in the sys directory on
        VxWorks when using RTPs.

2005-09-01  Thomas Quinot  <quinot@adacore.com>

        * g-soccon-vms.adb: Renamed to g-soccon-vms.ads

        * g-soccon-vms.ads: Renamed from g-soccon-vms.adb

        * g-soccon.ads, g-soccon-tru64.ads, g-soccon-aix.ads,
        g-soccon-darwin.ads, g-soccon-irix.ads, g-soccon-hpux.ads,
        g-soccon-solaris.ads, g-soccon-mingw.ads, g-soccon-vxworks.ads,
        g-soccon-freebsd.ads: Add new constants:
         IP_MULTICAST_IF
         SO_RCVTIMEO/SO_SNDTIMEO
         IOV_MAX

        * gen-soccon.c:
        Move all target-specific file inclusions and macro definitions to
        gsocket.h, in order to ensure that any C code in socket.c will see a
        set of constants that is consistent with the contents of g-soccon.ads.

        * gsocket.h: Code imported from gen-soccon.c:
        Move all target-specific file inclusions and macro definitions to
        gsocket.h, in order to ensure that any C code in socket.c will see a set
        of constants that is consistent with the contents of g-soccon.ads.
        This change also makes gen-soccon self-contained (removing dependencies
        upon GCC internal headers).

        * g-socket.adb (Send_Vector): Make calls to Writev at most IOV_MAX
        iovecs at a time.
        (To_Inet_Addr): Now a procedure instead of a function, more efficient.

        * socket.c: Minor reformatting.

2005-09-01  Ed Schonberg  <schonberg@adacore.com>
            Thomas Quinot  <quinot@adacore.com>

        * fname-sf.adb, mlib-tgt.ads,
        back_end.adb, casing.adb, g-debpoo.adb, g-excact.adb, g-spipat.adb,
        g-spipat.ads, g-thread.adb, lib-list.adb, makeutl.adb, mlib.adb,
        osint.adb, par-ch10.adb, par-load.adb, prep.adb, prj.adb, prj-attr.ads,
        prj-env.ads, prj-err.adb, prj-err.ads, prj-ext.adb, prj-ext.ads,
        prj-makr.adb, prj-makr.ads, prj-pars.ads, prj-part.adb, prj-strt.adb,
        prj-tree.ads, prj-util.ads, sem_dist.adb, sinput-c.ads, sinput-l.ads,
        sinput-p.ads, styleg-c.ads, xr_tabls.adb, prj-attr-pm.ads,
        makegpr.adb: Remove redundant use_clauses.

2005-09-01  Arnaud Charlet  <charlet@adacore.com>

        * s-stoele.ads, s-stopoo.ads, s-stratt.ads, s-strops.ads, s-unstyp.ads,
        s-valboo.ads, s-valcha.ads, s-valdec.ads, s-valenu.ads, s-valint.ads,
        s-vallld.ads, s-vallli.ads, s-valllu.ads, s-valrea.ads, s-valuns.ads,
        s-valuti.ads, s-valwch.ads, s-veboop.ads, s-vector.ads, s-vercon.ads,
        s-wchcnv.ads, s-wchcon.ads, s-wchjis.ads, s-wchstw.ads, s-wchwts.ads,
        s-widboo.ads, s-widcha.ads, s-widenu.ads, s-widlli.ads, s-widllu.ads,
        s-widwch.ads, s-wwdcha.ads, s-wwdenu.ads, s-wwdwch.ads, system.ads,
        table.ads, types.ads, system-vms_64.ads, s-crtl-vms64.ads,
        s-addope.ads, system-darwin-ppc.ads, system-vxworks-x86.ads,
        s-vxwork-x86.ads, system-linux-ppc.ads, i-vxwork-x86.ads,
        a-numaux-darwin.ads, a-crbtgo.ads, a-crbtgk.ads, a-crbltr.ads,
        a-coprnu.ads, a-convec.ads, a-contai.ads, a-coinve.ads, a-cohata.ads,
        a-cohama.ads, a-cihama.ads, a-cidlli.ads, a-cdlili.ads,
        a-numaux-libc-x86.ads, a-numaux-vxworks.ads, system-linux-ia64.ads,
        system-freebsd-x86.ads, system-unixware.ads, system-lynxos-ppc.ads,
        system-lynxos-x86.ads, system-linux-x86_64.ads, system-tru64.ads,
        s-vxwork-alpha.ads, system-aix.ads, system-vxworks-sparcv9.ads,
        system-solaris-x86.ads, system-irix-o32.ads, system-irix-n32.ads,
        s-parame-hpux.ads, system-hpux.ads, system-vxworks-m68k.ads,
        s-vxwork-m68k.ads, system-linux-x86.ads, system-vxworks-mips.ads,
        s-vxwork-mips.ads, system-os2.ads, system-interix.ads,
        s-vxwork-ppc.ads, system-solaris-sparc.ads, s-vxwork-sparcv9.ads,
        system-solaris-sparcv9.ads, s-parame-vms.ads, system-vms.ads,
        s-osinte-mingw.ads, system-mingw.ads, s-parame-vms-restrict.ads,
        system-vms-zcx.ads, s-parame-ae653.ads, system-vxworks-ppc.ads,
        s-parame-vxworks.ads, system-vxworks-alpha.ads, interfac-vms.ads,
        a-numaux-x86.ads, a-astaco.ads, a-chahan.ads, a-charac.ads,
        a-chlat1.ads, a-chlat9.ads, a-colire.adb, a-colire.ads, a-comlin.ads,
        a-cwila1.ads, a-cwila9.ads, ada.ads, a-decima.ads, a-exextr.adb,
        a-filico.ads, a-finali.ads, a-interr.ads, a-ioexce.ads, a-dynpri.ads,
        a-ngcefu.ads, a-ngcefu.adb, a-ngcoty.adb, a-ngcoty.ads, a-ngelfu.ads,
        a-nudira.adb, a-nudira.ads, a-nuflra.adb, a-numaux.ads, a-numeri.ads,
        a-reatim.adb, a-stmaco.ads, a-storio.ads, a-strbou.ads, a-stream.ads,
        a-strfix.ads, a-string.ads, a-strmap.ads, a-strsea.ads, a-strsup.ads,
        a-strunb.ads, a-stunau.ads, a-stwibo.ads, a-stwifi.ads, a-stwima.ads,
        a-stwise.ads, a-stwisu.ads, a-stwiun.ads, a-swmwco.ads, a-textio.ads,
        csets.ads, debug.ads, dec.ads, g-curexc.ads, get_targ.ads,
        g-except.ads, system-linux-hppa.ads, a-chacon.ads, a-widcha.ads,
        a-zchara.ads, system-hpux-ia64.ads, a-ciorma.ads, a-coorma.ads,
        a-ciormu.ads, a-coormu.ads, a-rbtgso.ads, a-chzla1.ads, a-chzla9.ads,
        a-stzbou.ads, a-stzfix.ads, a-stzmap.ads, a-stzsea.ads, a-stzsup.ads,
        a-stzunb.ads, a-swunau.ads, a-szunau.ads, gnat.ads, g-regpat.ads,
        g-speche.ads, g-spitbo.ads, g-table.ads, g-tasloc.ads, g-trasym.ads,
        i-c.ads, i-cpoint.ads, i-cpp.ads, i-cstrin.ads, i-fortra.ads,
        interfac.ads, i-os2err.ads, i-os2lib.ads, i-os2syn.ads, i-os2thr.ads,
        i-vxwork.ads, output.ads, s-arit64.ads, s-atacco.ads, s-boarop.ads,
        s-casuti.ads, s-crtl.ads, s-exctab.ads, s-exnint.ads, s-exnllf.ads,
        s-exnlli.ads, s-expint.ads, s-explli.ads, s-expllu.ads, s-expmod.ads,
        s-expuns.ads, s-fatflt.ads, s-fatgen.ads, s-fatlfl.ads, s-fatllf.ads,
        s-fatsfl.ads, s-finimp.ads, s-finroo.ads, s-fore.ads, s-geveop.ads,
        s-htable.ads, s-imgbiu.ads, s-imgboo.ads, s-imgcha.ads, s-imgdec.ads,
        s-imgenu.ads, s-imgint.ads, s-imgllb.ads, s-imglld.ads, s-imglli.ads,
        s-imgllu.ads, s-imgllw.ads, s-imgrea.ads, s-imguns.ads, s-imgwch.ads,
        s-imgwiu.ads, s-io.ads, s-maccod.ads, s-mantis.ads, s-memcop.ads,
        s-pack03.ads, s-pack05.ads, s-pack06.ads, s-pack07.ads, s-pack09.ads,
        s-pack10.ads, s-pack11.ads, s-pack12.ads, s-pack13.ads, s-pack14.ads,
        s-pack15.ads, s-pack17.ads, s-pack18.ads, s-pack19.ads, s-pack20.ads,
        s-pack21.ads, s-pack22.ads, s-pack23.ads, s-pack24.ads, s-pack25.ads,
        s-pack26.ads, s-pack27.ads, s-pack28.ads, s-pack29.ads, s-pack30.ads,
        s-pack31.ads, s-pack33.ads, s-pack34.ads, s-pack35.ads, s-pack36.ads,
        s-pack37.ads, s-pack38.ads, s-pack39.ads, s-pack40.ads, s-pack41.ads,
        s-pack42.ads, s-pack43.ads, s-pack44.ads, s-pack45.ads, s-pack46.ads,
        s-pack47.ads, s-pack48.ads, s-pack49.ads, s-pack50.ads, s-pack51.ads,
        s-pack52.ads, s-pack53.ads, s-pack54.ads, s-pack55.ads, s-pack56.ads,
        s-pack57.ads, s-pack58.ads, s-pack59.ads, s-pack60.ads, s-pack61.ads,
        s-pack62.ads, s-pack63.ads, s-parame.ads, s-pooglo.ads, s-pooloc.ads,
        s-poosiz.ads, s-powtab.ads, s-purexc.ads, s-sopco3.ads, s-sopco4.ads,
        s-sopco5.ads: Minor reformatting: reindent pragma Pure/Preelaborate
        and always use the no parameter form for consistency.

        * gnat-style.texi: Document rules about Preelaborate/Pure pragmas.

2005-09-01  Robert Dewar  <dewar@adacore.com>

        * binde.adb: Minor reformatting
        (Find_Elab_Order): Output warning if -p used with static elab order

2005-09-01  Robert Dewar  <dewar@adacore.com>

        * checks.adb (Check_Needed): New procedure, deals with removing checks
        based on analysis of short-circuited forms. Also generates warnings for
        improper use of non-short-circuited forms.
        Code clean ups.

2005-09-01  Robert Dewar  <dewar@adacore.com>

        * a-ztexio.adb, a-textio.adb, a-witeio.adb: Replace bad range checks
        with 'Valid tests.

2005-09-01  Robert Dewar  <dewar@adacore.com>

        * errout.ads, errout.adb (Fix Error_Msg_F): Fix implementation to meet
        spec.
        Implement new insertion char < (conditional warning)
        * errutil.adb, erroutc.adb: Implement new insertion char <
        (conditional warning).
        * sem_elab.adb, prj-dect.adb, erroutc.ads, err_vars.ads
        (Error_Msg_Warn): New variable for < insertion char.
        * prj-nmsc.adb: Implement new errout insertion char < (conditional
        warning).
        (Check_For_Source): Change value of Source_Id only after the current
        source has been dealt with.

2005-09-01  Robert Dewar  <dewar@adacore.com>
            Doug Rupp  <rupp@adacore.com>

        * exp_attr.adb: Handle vax fpt for 'Valid attribute
        * exp_vfpt.ads, exp_vfpt.adb: (Expand_Vax_Valid): New procedure
        * s-vaflop-vms-alpha.adb, s-vaflop.ads, s-vaflop.adb
        (Valid_D, Valid_F, Valid_G): New functions

2005-09-01  Ed Schonberg  <schonberg@adacore.com>
            Hristian Kirtchev  <kirtchev@adacore.com>
            Javier Miranda  <miranda@adacore.com>

        * exp_ch6.adb (Expand_Call): If an actual is a function call rewritten
        from object notation, the original node is unanalyzed and carries no
        semantic information, so that accessiblity checks must be performed on
        the type of the actual itself.
        (Expand_N_Subprogram_Declaration): Change last actual parameter for
        compatibility with Build_Protected_Sub_Specification.
        (Check_Overriding_Inherited_Interfaces): Add suport to handle
        overloaded primitives.
        (Register_Interface_DT_Entry): Use the new name of the formal
        the the calls to Expand_Interface_Thunk

        * exp_dbug.ads: Augment comments on encoding of protected types to
        include the generation of dispatching subprograms when the type
        implements at least one interface.

        * lib.ads: Extend information in Load_Stack to include whether a given
        load comes from a Limited_With_Clause.

        * lib-load.adb (From_Limited_With_Chain): New predicate to determine
        whether a potential circularity is harmless, because it includes units
        loaded through a limited_with clause. Extends previous treatment which
        did not handle properly arbitrary combinations of limited and
        non-limited clauses.

2005-09-01  Nicolas Setton  <setton@adacore.com>

        * exp_dbug.adb (Get_Encoded_Name): Fixed bug that caused biaised types
        to be encoded as typ___XBLU_lowerbound__upperbound instead of
        typ___XB_lowerbound__upperbound.

2005-09-01  Thomas Quinot  <quinot@adacore.com>

        * exp_dist.adb (Add_RACW_TypeCode, Add_RAS_TypeCode): Do not generate
        dummy access formal for RACW/RAS TypeCode TSS.
        (Build_TypeCode_Call): Do not generate dummy null access actual for
        calls to the TypeCode TSS.

2005-09-01  Ed Schonberg  <schonberg@adacore.com>

        * exp_intr.adb (Expand_Source_Name): For Enclosing_Entity, generate
        fully qualified name, to distinguish instances with the same local name.

        * g-souinf.ads (Enclosing_Entity): Document that entity name is now
        fully qualified.

2005-09-01  Robert Dewar  <dewar@adacore.com>

        * exp_pakd.adb (Create_Packed_Array_Type): Properly handle very large
        packed arrays.

2005-09-01  Jerome Lambourg  <lambourg@adacore.com>

        * g-expect.adb (Non_Blocking_Spawn): Initialize the filters field to
        (Free): New deallocation procedure for filter elements
        (Close): Deallocate any existing filter for the concerned connection

2005-09-01  Laurent Pautet  <pautet@adacore.com>

        * g-pehage.ads, g-pehage.adb (Select_Char_Position): When no character
        position set is provided, we compute one in order to reduce the maximum
        length of the keys.  This computation first selects a character
        position between 1 and the minimum length of the keys in order to
        avoid reducing one of the keys to an empty string.
        (Initialize, Compute): When the ratio V to K is too low, the algorithm
        does not converge. The initialization procedure now comes with a
        maximum number of iterations such that when exceeded, an exception is
        raised in Compute. The user can initialize this ratio to another value
        and try again
        Reformating and updated headers.

2005-09-01  Javier Miranda  <miranda@adacore.com>

        * itypes.ads, itypes.adb (Create_Null_Excluding_Itype): New subprogram
        that given an entity T creates and returns an Itype that duplicates the
        contents of T. The returned Itype has the null-exclusion
        attribute set to True, and its Etype attribute references T
        to keep the association between the two entities.
        Update copyright notice

        * sem_aggr.adb (Check_Can_Never_Be_Null,
        Aggregate_Constraint_Checks, Resolve_Aggregate,
        Resolve_Array_Aggregate, Resolve_Record_Aggregate): Code cleanup.

        * sem_ch5.adb (Analyze_Assignment): Code cleanup.

2005-09-01  Gary Dismukes  <dismukes@adacore.com>
            Robert Dewar  <dewar@adacore.com>
            Hristian Kirtchev  <kirtchev@adacore.com>

        * layout.adb (SO_Ref_From_Expr): Change Subtype_Mark to
        Result_Definition.

        * par-ch6.adb (P_Subprogram): Handle parsing of Access_Definitions in
        function specs.
        Call Set_Result_Definition instead of Set_Subtype_Mark.
        (P_Subprogram_Specification): Add parsing of anonymous access result
        plus null exclusions. Call Set_Result_Definition instead of
        Set_Subtype_Mark.

        * par-ch3.adb: Add support for LIMITED NEW for Ada 2005 AI-419
        (P_Access_Type_Definition): Add parsing for an anonymous access result
        subtype, plus parsing for null exclusions. Call Set_Result_Definition
        instead of Set_Subtype_Mark.

        * sinfo.adb: Add support for LIMITED NEW for Ada 2005 AI-419
        (Null_Exclusion_Present): Allow this flag for N_Function_Specification.
        (Result_Definition): New function for N_Function_Specifications.
        (Subtype_Mark): No longer allowed for N_Access_Function_Definition and
        N_Function_Specification.
        (Set_Null_Exclusion_Present): Allow this flag for
        N_Function_Specification.
        (Set_Result_Definition): New procedure for N_Function_Specifications.
        (Set_Subtype_Mark): No longer allowed for N_Access_Function_Definition
        and N_Function_Specification.

        * sinfo.ads: Update grammar rules for 9.7.2: Entry_Call_Alternative,
        Procedure_Or_Entry_Call; 9.7.4: Triggering_Statement.
        Add support for LIMITED NEW for Ada 2005 AI-419
        Update the syntax of PARAMETER_AND_RESULT_PROFILE to reflect the new
        syntax for anonymous access results.
        Replace Subtype_Mark field by Result_Definition in
        N_Function_Specification and N_Access_Definition specs.
        Add Null_Exclusion_Present to spec of N_Function_Specification.
        (Result_Definition): New function for N_Function_Specification and
        N_Access_Function_Definition.
        (Set_Result_Definition): New procedure for N_Function_Specification and
        N_Access_Function_Definition.

        * sprint.adb (S_Print_Node_Actual): Change Subtype_Mark calls to
        Result_Definition for cases of N_Access_Function_Definition and
        N_Function_Specification.
        Print "not null" if Null_Exclusion_Present on N_Function_Specification.

2005-09-01  Vincent Celier  <celier@adacore.com>

        * lib-writ.adb: Update Copyright notice
        (Write_With_Lines): On platforms where file names are case-insensitive,
        record the file names in lower case.
        (Write_ALI): For D lines, on platforms where file names are
        case-insensitive, record the file names in lower case.

2005-09-01  Ed Schonberg  <schonberg@adacore.com>
            Emmanuel Briot  <briot@adacore.com>

        * lib-xref.adb (Output_Overridden_Op): Display information on
        overridden operation.

        * lib-xref.ads: Add documentation on overridden operations.

        * ali.ads (Xref_Entity_Record): Add support for storing the overriding
        information.

        * ali.adb (Get_Typeref): New subprogram. Adds support for parsing the
        overriding entity information.

2005-09-01  Vincent Celier  <celier@adacore.com>

        * mlib-prj.adb (Copy_Interface_Sources): Copy all interface sources,
        including those that are inherited.

2005-09-01  Robert Dewar  <dewar@adacore.com>

        * opt.ads, opt.adb: Add new switches Debug_Pragmas_Enabled[_Config]

        * par-prag.adb: Implement new pragma Debug_Policy

        * sem_prag.adb Implement new pragma Debug_Policy
        (Analyze_Pragma, case Pack): do not let pragma Pack override an explicit
        Component_Size attribute specification. Give warning for ignored pragma
        Pack.

        * snames.h, snames.ads, snames.adb: Introduce entries in
        Preset_Names for Name_Disp_Asynchronous_Select,
        Name_Disp_Conditional_Select, Name_Disp_Get_Prim_Op_Kind,
        Name_Disp_Timed_Select.
        New pragma Debug_Policy

        * switch-c.adb (Scan_Front_End_Switches): Set Ada 2005 mode
        explicitly.
        Switch -gnata also sets Debug_Pragmas_Enabled

        * sem.adb, par.adb (Set_Opt_Config_Switch): Add parameter Main_Unit to
        handle an explicit -gnata when compiling predefined files.

2005-09-01  Vincent Celier  <celier@adacore.com>

        * prj-env.adb (Set_Ada_Paths.Add.Recursive_Add): Do not add the object
        directories of projects that have no Ada sources.

2005-09-01  Robert Dewar  <dewar@adacore.com>

        * scng.adb (Check_End_Of_Line): Count characters, rather than bytes
        (makes a difference for wide characters)

        * widechar.adb, widechar.ads:
        Add Wide_Char_Byte_Count feature to count chars vs bytes

2005-09-01  Thomas Quinot  <quinot@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>
            Robert Dewar  <dewar@adacore.com>

        * sem_attr.adb (Resolve_Attribute, case 'Address): For an illegal
        'Address attribute reference with an overloaded prefix, use the
        location of the prefix (not the location of the attribute reference) as
        the error location.
        (Analyze_Attribute, case 'Size): The name of an enumeration literal, or
        a function renaming thereof, is a valid prefix for 'Size (where it is
        intepreted as a function call).
        (Statically_Denotes_Entity): New predicate to determine whether the
        prefix of an array attribute can be considered static.

        PR ada/9087
        (Eval_Attr): Fix failure to evaluate Component_Size for
        unconstrained arrays (resulted in wrong value in packed case, since
        back end cannot handle this case)

2005-09-01  Robert Dewar  <dewar@adacore.com>

        * sem_cat.adb (Check_Categorization_Dependencies): Add more detail to
        error msgs for most common cases.
        Use new errout insertion char < (conditional warning)

2005-09-01  Javier Miranda  <miranda@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>

        * sem_ch10.adb (In_Chain): Moved from the scope of a subprogram to
        become local to the whole package.
        (Install_Limited_Withed_Unit): Instead of unchaining real entities if
        the package was already analyzed the new algorithm "replaces" the
        real entities by the shadow ones. This is required to ensure that
        the order of these entities in the homonym chains does not change;
        otherwise we can have undefined references at linking time because
        in case of conflicts the external name of the entities will have
        a suffix that depends on the order of the entities in the chain.
        (Remove_Limited_With_Clause): Complementary code that completes the
        new algorithm and replaces the shadow entities by the real ones.
        (Install_Limited_Withed_Unit): When unchaining entities before the
        installation of the shadow entities, only regular entities of the
        public part must be taken into account. This is required to
        keep this routine in synch with the work done by Remove_Limited_
        With_Clause
        (Install_Limited_With_Clause): Introduce implicit limited_with_clause
        even if unit is analyzed, because the analysis of the unit is
        idempotent in any case, and the limited view of the unit may have to
        be installed for proper visibility.
        (Expand_Limited_With_Clause): Even if the unit in the implicit
        with_clause has been analyzed already, a limited view of the package
        must be built for the current context, if it does not exist yet.

2005-09-01  Ed Schonberg  <schonberg@adacore.com>
            Javier Miranda  <miranda@adacore.com>
            Gary Dismukes  <dismukes@adacore.com>

        * sem_ch12.adb (Instantiate_Subprogram_Body): When creating the
        defining entity for the instance body, make a new defining identifier
        rather than copying the entity of the spec, to prevent accidental
        sharing of the entity list.
        (Check_Private_View): When exchanging views of private types, build the
        list of exchanged views as a stack, to ensure that on exit the exchanges
        are undone in the proper order.
        (Analyze_Package_Instantiation, Analyze_Subprogram_Instantiation):
        Restore the compilation environment in case of instantiation_error.
        (Analyze_Generic_Subprogram_Declaration): Handle creation of type entity
        for an anonymous access result.
        (Instantiate_Generic_Subprogram): Subtype_Mark => Result_Definition
        (Formal_Entity): Handle properly the case of a formal package that
        denotes a generic package renaming.

2005-09-01  Thomas Quinot  <quinot@adacore.com>

        * sem_ch13.adb (Analyze_Enumeration_Representation_Clause): Reject the
        clause if the array aggregate is surrounded by parentheses.

2005-09-01  Cyrille Comar  <comar@adacore.com>
            Gary Dismukes  <dismukes@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>
            Javier Miranda  <miranda@adacore.com>

        * sem_ch3.ads, sem_ch3.adb (Analyze_Object_Declaration): Go to the
        underlying type
        to check if a type is Constrained in cases related to code generation
        (rather than semantic checking) since otherwise we do not generate
        similar code for mutable private types depending if their
        discriminants are visible or not.
        (Check_Abstract_Overriding): Do not complain about failure to override
        the primitive operations used in dispatching selects since they will
        always be overriden at the freeze point of the type.
        (Access_Definition): Separate out handling for resetting the scope
        of an anonymous access function result type. Retrieve the scope
        of the associated function rather than using Current_Scope, which
        does not have a consistent value (depends on whether we're in the
        middle of analyzing formal parameters). Add ??? comment about
        finding a cleaner way to handle the special cases of scope setting.
        (Process_Incomplete_Dependents): A protected operation is never a
        dispatching operation (only its wrapper may be).
        (Build_Derived_Record_Type): In case of tagged private types that
        implement interfaces add derivation of predefined primitive
        operations.
        (Derive_Subprograms): Replace the Is_Interface_Derivation parameter
        by two parameters that are used in case of derivation from abstract
        interface types: No_Predefined_Prims is used to avoid the derivation
        of predefined primitives from the interface, and Predefined
        Prims_Only is used to complete the derivation predefined primitives
        in case of private tagged types implementing interfaces.
        Fix typo in comments
        (Find_Interface_In_Descendant): Protect the frontend against
        wrong code with large circularity chains.
        (Is_Private_Overriding): Add support for entities overriding interface
        subprograms. The test failed because Entities associated with overriden
        interface subprograms are always marked as hidden (and used to build
        the secondary dispatch table); in this case the overriden entity is
        available through the field abstract_interface_alias (cf. override_
        dispatching_operation)
        (Access_Definition): Set the scope of the type to Current_Scope for the
        case of a function with an anonymous access result type.
        (Access_Subprogram_Declaration): Handle creation of the type entity for
        an access-to-function type with an anonymous access result.
        (Check_Anonymous_Access_Types): Change Subtype_Mark to Result_Definition
        in handling for N_Access_Function_Definition.
        (Analyze_Subtype_Declaration): Modify the text of error message.
        (Derived_Type_Declaration): Modify the text of error message.
        (Process_Subtype): Modify the text of error message plus cleanup
        of one redundant error message.
        (Analyze_Component_Declaration): Code cleanup.
        (Analyze_Object_Declaration): Code cleanup.
        (Analyze_Subtype_Declaration): Propagate the null-exclusion
        attribute in case of access types. Code cleanup.
        (Array_Type_Declaration): Code cleanup.
        (Process_Discriminants): Create the new null-excluding itype
        if required. Code cleanup.
        (Process_Subtype): Create the new null-excluding itype if
        required. Code cleanup.
        (Build_Derived_Record_Type): Code cleanup to avoid calling
        twice the subprogram derive_subprograms in case of private
        types that implement interfaces. In this particular case the
        subprogram Complete_Subprograms_Derivation already does the
        job associated with the second call.

        * exp_strm.adb (Build_Elementary_Input_Call): Add an explicit
        conversion to the full view when generating an operation for a
        discriminant whose type may currently be private.

2005-09-01  Ed Schonberg  <schonberg@adacore.com>
            Javier Miranda  <miranda@adacore.com>

        * sem_ch4.adb (Transform_Object_Operation): In a context off the form
        V (Obj.F), the rewriting does not involve the indexed component, but
        only the selected component itself.
        Do not apply the transformation if the analyzed node is an actual of a
        call to another subprogram.
        (Complete_Object_Operation): Retain the entity of the
        dispatching operation in the selector of the rewritten node. The
        entity will be used in the expansion of dispatching selects.
        (Analyze_One_Call): Improve location of the error message associated
        with interface.
        (Analyze_Selected_Component): No need to resolve prefix when it is a
        function call, resolution is done when parent node is resolved, as
        usual.
        (Analyze_One_Call): Add a flag to suppress analysis of the first actual,
        when attempting to resolve a call transformed from its object notation.
        (Try_Object_Operation, Transform_Object_Operastion): Avoid makind copies
        of the argument list for each interpretation of the operation.
        (Try_Object_Operation): The designated type of an access parameter may
        be an incomplete type obtained through a limited_with clause, in which
        case the primitive operations of the type are retrieved from its full
        view.
        (Analyze_Call): If this is an indirect call, and the return type of the
        access_to_subprogram is incomplete, use its full view if available.

2005-09-01  Javier Miranda  <miranda@adacore.com>
            Gary Dismukes  <dismukes@adacore.com>

        * sem_ch6.ads, sem_ch6.adb (Check_Conformance): In case of anonymous
        access types the null-exclusion and access-to-constant attributes must
        also match.
        (Analyze_Return_Statement): When the result type is an anonymous access
        type, apply a conversion of the return expression to the access type
        to ensure that appropriate accessibility checks are performed.
        (Analyze_Return_Type): For the case of an anonymous access result type,
        generate the Itype and set Is_Local_Anonymous_Access on the type.
        Add ??? placeholder for check to disallow returning a limited object
        in Ada 2005 unless it's an aggregate or a result of a function call.
        Change calls from Subtype_Mark to Result_Definition.
        (Analyze_Subprogram_Body): Change formal Subtype_Mark to
        Result_Definition in call to Make_Function_Specification.
        (Build_Body_To_Inline): Change Set_Subtype_Mark to
        Set_Result_Definition.
        (Make_Inequality_Operator): Change formal Subtype_Mark to
        Result_Definition in call to Make_Function_Specification.
        (Process_Formals): Create the new null-excluding itype if required.
        (New_Overloaded_Entity): For an entity overriding an interface primitive
        check if the entity also covers other abstract subprograms in the same
        scope. This is required to handle the general case, that is, overriding
        other interface primitives and overriding abstract subprograms inherited
        from some abstract ancestor type.
        (New_Overloaded_Entity): For an overriding entity that comes from
        source, note the operation that it overrides.
        (Check_Conformance, Type_Conformant): Addition of one new formal
        to skip controlling formals in the analysis. This is used to
        handle overloading of abstract interfaces.
        (Base_Types_Match): Add missing case for types imported from
        limited-with clauses
        (New_Overloaded_Entity): Add barrier to protect the use of
        the "alias" attribute.

2005-09-01  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch8.adb (Analyze_Renamed_Entry): For a renaming_as_declaration,
        verify that the procedure and the entry are mode conformant.
        (Analyze_Subprogram_Renaming): Emit a warning if an operator is renamed
        as a different operator, which is often a cut-and-paste error.

2005-09-01  Javier Miranda  <miranda@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>

        * sem_disp.adb (Check_Controlling_Formals): Anonymous access types
        used in controlling parameters exclude null because it is necessary to
        read the tag to dispatch, and null has no tag.
        (Override_Dispatching_Operation): If the previous operation is inherited
        from an interface, it becomes hidden  and does not participate in later
        name resolution.

2005-09-01  Javier Miranda  <miranda@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>
            Gary Dismukes  <dismukes@adacore.com>

        * sem_res.adb (Resolve_Membership_Op): In case of the membership test
        "Iface_CW_Typ in T'Class" we have nothing else to do in the frontend;
        the expander will generate the corresponding run-time check to evaluate
        the expression.
        (Resolve_Call): Check for legal type of procedure name or prefix that
        appears as a trigger in a triggering alternative.
        (Valid_Conversion): I