a-tags.ads, a-tags.adb (Offset_To_Top): Moved from the package body to the…
a-tags.ads, a-tags.adb (Offset_To_Top): Moved from the package body to the specification because the frontend generates...
2005-12-05 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.
From-SVN: r108284
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gcc/ada/exp_sel.adb
0 → 100644
gcc/ada/exp_sel.ads
0 → 100644
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