2007-04-06 Ed Schonberg <schonberg@adacore.com>
Javier Miranda <miranda@adacore.com>
* lib-xref.ads, lib-xref.adb:
Modify the loop that collects type references, to include interface
types that the type implements. List each of these interfaces when
building the entry for the type.
(Generate_Definition): Initialize component Def and Typ of new entry
in table Xrefs, to avoid to have these components unitialized.
(Output_References): Split Is_Abstract flag into
Is_Abstract_Subprogram and Is_Abstract_Type.
(Generate_Reference): Add barrier to do not generate the warning
associated with Ada 2005 entities with entities generated by the
expander.
From-SVN: r123583
2007-04-06 Thomas Quinot <quinot@adacore.com>
* lib-writ.adb (Write_With_Lines): Factor duplicated code between the
cases where a given dependency has a body or not.
(Write_With_File_Names): New subprogram, common code for the two cases
above.
From-SVN: r123582
2007-04-06 Serguei Rybin <rybin@adacore.com>
* lib.ads, lib.adb (Tree_Read): Release the memory occupied by the
switches from previously loaded tree
From-SVN: r123581
2007-04-06 Eric Botcazou <botcazou@adacore.com>
Arnaud Charlet <charlet@adacore.com>
* init.c: Reuse PA/HP-UX code for IA-64/HP-UX, except
__gnat_adjust_context_for_raise.
(__gnat_init_float): on x86 vxworks 5.x and 6.x, we use the same
implementation of floating point operations as native x86 targets.
So the FPU should be initialized in the same way using finit. Fix
floating point operations accuracy issues.
(__gnat_install_handler, case FreeBSD): Use proper type for sa_sigaction
member in struct sigaction, so as to avoid warning for incompatible
pointer types.
From-SVN: r123580
2007-04-06 Pascal Obry <obry@adacore.com>
* i-cstrea.ads: (fopen): Add encoding parameter.
(freopen): Idem.
Change reference from a-sysdep.c to sysdep.c in comment.
Update copyright notice.
This set of patch add support for the encoding form parameter.
* mingw32.h (S2WSU): New macro to convert from a string to a
wide-string using the UTF-8 encoding. The S2WS macro supports now only
standard 8bits encoding.
(WS2SU): As above but converting from wide-sring to string.
This is needed as it is necessary to have access to both versions in the
runtime for the form parameter encoding support.
This set of patch add support for the encoding form parameter.
(S2WS): Improve implementation to handle cases where the filename is not
UTF-8 encoded. In this case we default to using the current code page
for the conversion.
* s-crtl-vms64.ads, s-crtl.ads (Filename_Encoding): New enumeration
type (UTF8, ASCII_8bits). This enumeration has a rep clause to match
the constants defined in adaint.h.
(fopen): Add encoding parameter.
(freopen): Idem.
* s-ficobl.ads (AFCB): Add Encoding field to record the filename
encoding. This is needed for the Reset routine (freopen low level-call).
* s-fileio.adb (Open): Decode encoding form parameter and set the
corresponding encoding value into AFCB structure.
(Reset): Pass the encoding value to freopen.
(Close): Move the call to Lock_Task to the beginning of the procedure.
From-SVN: r123578
2007-04-06 Emmanuel Briot <briot@adacore.com>
* g-regpat.adb (Parse_Posix_Character_Class): Fix handling of
[[:xdigit:]] character class.
Also raise an exception when an invalid character class is used.
From-SVN: r123577
2007-04-06 Vincent Celier <celier@adacore.com>
* gprep.adb (Process_Files.Process_One_File): Use full file name when
issuing pragma Source_Reference.
From-SVN: r123576
2007-04-06 Jose Ruiz <ruiz@adacore.com>
Vincent Celier <celier@adacore.com>
* gnatcmd.adb (B_Start): Add prefix of binder generated file.
(Stack_String): Add this String that contains the name of the Stack
package in the project file.
(Packages_To_Check_By_Stack): Add this list that contains the packages
to be checked by gnatstack, which are the naming and the stack packages.
(Check_Files): If no .ci files were specified for gnatstack we add all
the .ci files belonging to the projects, including binder generated
files.
(Non_VMS_Usage): Document that gnatstack accept project file switches.
(GNATCmd): Update the B_Start variable if we are in a VMS environment.
Add gnatstack to the list of commands that use project file related
switches, and get the single attribute Switches from the stack package
in a project file when calling gnatstack. Parse the -U flag for
processing files belonging to all projects in the project tree.
Remove all processing for command Setup
* prj-attr.adb: Add new package Stack with single attribute Switches
* vms_conv.ads (Command_Type): Add command Stack.
Move to body declarations that are only used in the body: types Item_Id,
Translation_Type, Item_Ptr, Item and its subtypes.
* vms_conv.adb: (Initialize): Add data for new command Stack.
Add declarations moved from the spec: types Item_Id, Translation_Type,
Item_Ptr, Item and its subtypes.
(Cargs_Buffer): New table
(Cargs): New Boolean global variable
(Process_Buffer): New procedure to create arguments
(Place): Put character in table Buffer or Cargs_Buffer depending on the
value of Cargs.
(Process_Argument): Set Cargs when processing qualifiers for GNAT
COMPILE
(VMS_Conversion): Call Process_Buffer for table Buffer and, if it is not
empty, for table Cargs_Buffer.
(Initialize): Remove component Setup in Command_List
From-SVN: r123575
* g-expect.adb (Get_Command_Output): When expanding the output buffer
we must ensure that there is enough place for the new data we are going
to copy in.
From-SVN: r123573
2007-04-06 Vincent Celier <celier@adacore.com>
* g-debpoo.adb (Validity): New package with a complete new
implementation of subprograms Is_Valid and Set_Valid.
(Is_Valid): Move to local package Validity
(Set_Valid): Move to local package Validity
From-SVN: r123572
2007-04-06 Pascal Obry <obry@adacore.com>
* g-arrspl.adb (Free) [Element_Access]: New routine to free the source
string.
(Create): Free the source string before storing the new one.
From-SVN: r123571
2007-04-06 Olivier Hainque <hainque@adacore.com>
* g-alleve.ads (Low Level Vector type definitions): Map each to the
associated vector view instead of all to the unsigned char view.
* g-altcon.adb (Generic_Conversions): New internal generic package,
offering facilities for all the Vector/View conversion routines
implemented by this unit.
(To_View/To_Vector - all versions): Reimplemented in a systematic
manner, using the internal Generic_Conversions facilities.
From-SVN: r123570
2007-04-06 Ed Schonberg <schonberg@adacore.com>
Bob Duff <duff@adacore.com>
* sem_aggr.adb (Resolve_Record_Aggregate): In semantics-only mode treat
an association with a box as providing a value even though the
initialization procedure for the type is not available.
(Resolve_Record_Aggregate): Check that a choice of an association with a
box corresponds to a component of the type.
(Resolve_Record_Aggregate): Split Is_Abstract flag into
Is_Abstract_Subprogram and Is_Abstract_Type.
* exp_tss.adb (Base_Init_Proc): Use Is_Type instead of Type_Kind for
assert.
* inline.adb (Add_Inlined_Body): Split Is_Abstract flag into
Is_Abstract_Subprogram and Is_Abstract_Type. Make sure these are
called only when appropriate.
From-SVN: r123569
2007-04-06 Ed Schonberg <schonberg@adacore.com>
* exp_pakd.adb (Expand_Packed_Boolean_Operator): The bounds of the
result are the bounds of the left operand, not the right.
From-SVN: r123567
2007-04-06 Robert Dewar <dewar@adacore.com>
Ed Schonberg <schonberg@adacore.com>
* exp_intr.adb (Expand_Exception_Call): Calls to subprograms in
GNAT.Current_Exception are not allowed if pragma Restrictions
(No_Exception_Propagation) is set and in any case make the associated
handler unsuitable as a target for a local raise statement.
(Expand_Dispatching_Constructor_Call): Replace generation of call to the
run-time subprogram CW_Membership by call to Build_CW_Membership.
(Expand_Dispatching_Constructor_Call): If the dispatching tag is given
by a function call, a temporary must be created before expanding the
Constructor_Call itself, to prevent out-of-order elaboration in the
back-end when stack checking is enabled..
From-SVN: r123566
2007-04-06 Thomas Quinot <quinot@adacore.com>
* exp_dist.ads, exp_dist.adb (Build_To_Any_Call, Build_From_Any_Call):
Do an Unchecked_Conversion to handle the passage from the Underlying
Type to the Base Type when calling Build_To_Any_Call and
Build_From_Any_Call.
(Build_Actual_Object_Declaration): Set Object's Ekind to E_Variable or
E_Constant, depending upon Variable formal.
(GARLIC_Support.Build_Subprogram_Receiving_Stubs,
PolyORB_Support.Build_Subprogram_Receiving_Stubs): For a formal
parameter that requires an extra constrained parameter, declare
temporary for actual as a variable, not a constant.
(Add_RACW_Primitive_Declarations_And_Bodies): Generate bodies only when
the unit being compiled is the one that contains the stub type.
Change primitive operation name for the RACW associated with a RAS
from Call to _Call so it cannot clash with any legal identifier.
(PolyORB_Support.Add_RACW_Write_Attribute): Remove unused constant
Is_RAS.
(Append_RACW_Bodies): New subprogram.
(Expand_Receiving_Stubs_Bodies): Pass a 'Stmts' list to
Add_Receiving_Stubs_To_Declarations functions.
When expanding a package body, this list correspond to the
statements in the HSS at the end of the pacakge.
When expanding a package spec, this list correspond to the
spec declarations.
(Add_Receiving_Stubs_To_Declarations): Append the function
registering the receiving stubs at the end of the 'Stmts' list.
(RCI_Package_Locator): Pass the new Version generic formal when
instantiating a RCI_Locator package.
(Build_From_Any_Function): To compute the High bound for an
unconstrained array actual, we add the Low bound with the length.
Thus we must convert the low bound and the length to an appropriate
type before doing the sum.
(Build_Subprogram_Receiving_Stubs, PolyORB):
* Retrieve the extra formals parameters at the
end of the parameter stream.
* Use Move_Any_Value to write back out parameters
after executing the request as it is more efficient
than Copy_Any_Value.
* Build the any containing Extra Formals with the
appropriate typecode.
(PolyORB_Support.Helpers.Append_Record_Traversal): Nothing to do for an
empty Component_List.
(Build_Actual_Object_Declaration): New subprogram. Build and insert into
the tree the declaration for an object that serves as actual parameter
in server-side stubs.
(GARLIC_Support.Build_Subprogram_Receiving_Stubs,
PolyORB_Support.Build_Subprogram_Receiving_Stubs):
Use Build_Actual_Object_Declaration to prepare the actuals.
(Add_Parameter_To_NVList): Set the parameter mode to In for
Extra Constrained Parameters.
(Build_General_Calling_Stubs): Set the parameter type to boolean for
Extra Constrained parameters.
(Build_To_Any_Function, Build_From_Any_Function,
Built_TypeCode_Function): When Typ is implicit, call the correct
function with the first not implicit parent type.
(TC_Rec_Add_Process_Element, FA_Rec_Add_Process_Element,
(FA_Ary_Add_Process_Element): When Datum is an Any, we cannot infer the
typecode from the Etype. Therefore we retrieve the correct typecode
with a call to Get_Any_Type.
(Copy_Specification): Do controlling formal type substitution based on
Is_Controlling_Formal flag, instead of caller-provided object type.
(Build_Subprogram_Calling_Stubs): When retrieveing the original spec for
a RACW primitive operation, we might get a subprogram declaration for an
ancestor of the RACW designated type (not for the designated type
itself), in the case where this operation is inherited. In this case we
have no easy means of determining the original tagged type for which
the primitive was declared, so instead we now rely on
Copy_Specification to use the Is_Controlling_Formal flag to determine
which formals require type substitution.
From-SVN: r123565
2007-04-06 Eric Botcazou <botcazou@adacore.com>
Ed Schonberg <schonberg@adacore.com>
Gary Dismukes <dismukes@adacore.com>
* exp_ch9.ads, exp_ch9.adb (Family_Offset): Add new 'Cap' boolean
parameter. If it is set to true, return a result capped according to
the global upper bound for the index of an entry family.
(Family_Size): Add new 'Cap' boolean parameter. Pass it to Family_Offset
(Build_Find_Body_Index): Adjust for above change.
(Entry_Index_Expression): Likewise.
(Is_Potentially_Large_Family): New function extracted from...
(Collect_Entry_Families): ...here. Call it to detect whether the family
is potentially large.
(Build_Entry_Count_Expression): If the family is potentially large, call
Family_Size with 'Cap' set to true.
(Expand_N_Protected_Type_Declaration, Expand_N_Protected_Body): Generate
a protected version of an operation declared in the private part of
a protected object, because they may be invoked through a callback.
(Set_Privals): If the type of a private component is an anonymous access
type, do not create a new itype for each protected body.
If the body of a protected operation creates
controlled types (including allocators for class-widetypes), the
body of the corresponding protected subprogram must include a
finalization list.
(Build_Activation_Chain_Entity): Build the chain entity for extended
return statements.
(Type_Conformant_Parameters): Use common predicate Conforming_Types
to determine whether operation overrides an inherited primitive.
(Build_Wrapper_Spec): Add code to examine the parents while looking
for a possible overriding candidate.
(Build_Simple_Entry_Call): Set No_Initialization on the object used to
hold an actual parameter value since its initialization is separated
from the the declaration. Prevents errors on null-excluding access
formals.
From-SVN: r123564
2007-04-06 Ed Schonberg <schonberg@adacore.com>
Bob Duff <duff@adacore.com>
Cyrille Comar <comar@adacore.com>
* exp_ch7.ads, exp_ch7.adb (Find_Final_List): If the access type is
anonymous, use finalization list of enclosing dynamic scope.
(Expand_N_Package_Declaration): For a library package declaration
without a corresponding body, generate RACW subprogram bodies in the
spec (just as we do for the task activation call).
(Convert_View): Split Is_Abstract flag into Is_Abstract_Subprogram and
Is_Abstract_Type. Make sure these are called only when appropriate.
Remove all code for DSP option
(CW_Or_Controlled_Type): new subprogram.
From-SVN: r123563
2007-04-06 Javier Miranda <miranda@adacore.com>
Gary Dismukes <dismukes@adacore.com>
Ed Schonberg <schonberg@adacore.com>
* exp_ch13.adb (Expand_External_Tag_Definition): Replace call to the
run-time subprogram Set_External_Tag by call to Build_Set_External_Tag.
* exp_ch4.adb (Expand_Allocator_Expression): Don't perform a run-time
accessibility on class-wide allocators if the allocator occurs at the
same scope level as the allocator's type. The check is guaranteed to
succeed in that case, even when the expression originates from a
parameter of the containing subprogram.
(Expand_N_Op_Eq): Do nothing in case of dispatching call if compiling
under No_Dispatching_Calls restriction. During the semantic analysis
we already notified such violation.
(Tagged_Membership): Constant folding. There is no need to check
the tag at run-time if the type of the right operand is non
class-wide abstract.
Replace call to Is_Ancestor by call to Is_Parent
to support concurrent types with interface types.
(Expand_N_Allocator): Add an assertion associated with the generation
of the master_id.
(Expand_N_Slice): Do not enable range check to nodes associated
with the frontend expansion of the dispatch table.
(Is_Local_Access_Discriminant): Subsidiary function to
Expand_N_Allocator.
(Tagged_Membership): Replace generation of call to the run-time
subprogram CW_Membership by call to Build_CW_Membership.
(Expand_Allocator_Expression): Replace generation of call to the
run-time subprogram Get_Access_Level by call to Build_Get_Access_Level.
* exp_disp.ads, exp_disp.adb (Make_DT): Code reorganization to
initialize most the TSD components by means of an aggregate.
Modify the declaration of the object containing the TSD
because we now expand code that has a higher level of abstraction.
The TSD has a discriminant containing the Inheritance Depth Level,
value that is used in the membership test but also to fix the size
of the table of ancestors.
(Expand_Interface_Conversion): Insert function body at the closest place
to the conversion expression, to prevent access-before-elaboration
errors in the backend.
Code improved to reduce the size of the dispatch table if
compiling under restriction No_Dispatching_Calls plus code cleanup.
Code reorganization plus removal of calls to Set_Num_Prim_Ops
(Make_Secondary_DT): Remove call to Set_Num_Prim_Ops.
(Expand_Dispatching_Call): Minor code reorganization plus addition of
code to return immediately if compiling under No_Dispatching_Calls
restriction.
(Set_All_DT_Position): Remove code associated with the old CPP pragmas.
CPP_Virtual and CPP_Vtable are no longer supported.
(Expand_Interface_Conversion): Add missing support for interface type
derivations.
(Expand_Interface_Actuals): Replace calls to Is_Ancestor by calls to
Is_Parent to support concurrent types with interfaces.
(Init_Predefined_Interface_Primitives): Removed.
(Make_Secondary_DT): Modified to support concurrent record types.
(Set_All_DT_Position): Modified to support concurrent record types.
(Ada_Actions, Action_Is_Proc, Action_Nb_Arg): Remove entries associated
with Get_External_Tag, Inherit_TSD, Set_External_Tag.
(Ada_Actions, Action_Is_Proc, Action_Nb_Arg): Remove entry associated
with CW_Membership.
(Ada_Actions, Action_Is_Proc, Action_Nb_Arg): Remove entries associated
with Get_Access_Level, Get_Predefined_Prim_Op_Address,
Get_Prim_Op_Address Get_RC_Offset, Get_Remotely_Callable, Inherit_DT,
Set_Access_Level, Set_Expanded_Name, Set_Predefined_Prim_Op_Address,
Set_Prim_Op_Address, Set_RC_Offset, Set_Remotely_Callable, Set_TSD.
(Expand_Dispatching_Call): Replace generation of call to the run-time
subprograms Get_Predefined_Prim_Op_Address and Get_Prim_Op_Address by
calls to Build_Get_Predefined_Prim_Op_Address, and Build_Get_Prim_Op_
Address.
(Fill_DT_Entry, Fill_Secondary_DT_Entry): Replace generation of call to
the run-time subprograms Set_Predefined_Prim_Op_Address and Set_Prim_
Op_Address by calls to Build_Set_Predefined_Prim_Op_Address, and
Build_Set_Prim_Op_Address.
(Get_Remotely_Callable): Subprogram removed.
(Init_Predefined_Interface_Primitives): Replace generation of call to
the run-time subprograms Inherit_DT by call to Build_Inherit_Predefined_
Prims.
* sem_elab.adb (Set_Elaboration_Constraint): Replace the call to
First (Parameter_Associations ()) with the call to First_Actual that
returns an actual parameter expression for both named and positional
associations.
* sem_disp.adb (Check_Dispatching_Call): In case of dispatching call
check violation of restriction No_Dispatching_Calls.
(Check_Controlling_Type): A formal of a tagged incomplete type is a
controlling argument.
* exp_util.ads, exp_util.adb (Type_May_Have_Bit_Aligned_Components): Use
First/Next_Component_Or_Discriminant
(Insert_Actions): Add entries for new N_Push and N_Pop nodes
(Find_Implemented_Interface): Removed. All the calls to this subprogram
specify Any_Limited_Interface, and this functionality is already
provided by the function Has_Abstract_Interfaces.
(Find_Interface, Find_Interface_Tag, Find_Interface_ADT): Modified to
support concurrent types implementing interfaces.
(Find_Implemented_Interface): Removed. All the calls to this subprogram
specify kind Any_Limited_Interface, and this functionality is already
provided by the function Has_Abstract_Interfaces.
(Remove_Side_Effects): replace Controlled_Type by
CW_Or_Controlled_Type whenever the issue is related to
using or not the secondary stack.
* par-ch12.adb (P_Formal_Type_Definition): Update calls to
P_Interface_Type_Definition to fulfill the new interface (the formal
Is_Synchronized is no longer required).
* Make-lang.in (GNAT_ADA_OBJS): Addition of exp_atag.o
Update dependencies.
* exp_atag.ads, exp_atag.adb: New file
From-SVN: r123562
2007-04-06 Ed Schonberg <schonberg@adacore.com>
Thomas Quinot <quinot@adacore.com>
* exp_aggr.adb:
If the array component is a discriminated record, the array aggregate
is non-static even if the component is given by an aggregate with
static components.
(Expand_Record_Aggregate): Use First/Next_Component_Or_Discriminant
(Convert_Aggr_In_Allocator): If the allocator is for an access
discriminant and the type is controlled. do not place on a finalization
list at this point. The proper list will be determined from the
enclosing object.
(Build_Record_Aggr_Code): If aggregate has box-initialized components,
initialize record controller if needed, before the components, to ensure
that they are properly finalized.
(Build_Record_Aggr_Code): For the case of an array component that has a
corresponding array aggregate in the record aggregate, perform sliding
if required.
From-SVN: r123561
2007-04-06 Vincent Celier <celier@adacore.com>
* errutil.adb (Initialize): Initialize warnings table, if all warnings
are suppressed, supply an initial dummy entry covering all possible
source locations.
* make.adb (Scan_Make_Arg): Reject options that should start with "--"
and start with only one, such as "-RTS=none".
(Collect_Arguments): Do not check for sources outside of projects.
Do not collect arguments if project is externally built.
(Compile_Sources): Do nothing, not even check if the source is up to
date, if its project is externally built.
(Compile): When compiling a predefined source, add -gnatpg
as the second switch, after -c.
(Compile_Sources): Allow compilation of Annex J renames without -a
(Is_In_Object_Directory): Check if the ALI file is in the object
even if there is no project extension.
(Create_Binder_Mapping_File): Only put a unit in the mapping file for
gnatbind if the ALI file effectively exists.
(Initialize): Add the directory where gnatmake is invoked in front of
the path if it is invoked from a bin directory, even without directory
information, so that the correct GNAT tools will be used when spawned
without directory information.
* makeusg.adb: Change switch -S to -eS
Add lines for new switches -we, -wn and -ws
Add line for new switch -p
* prj-proc.adb (Process): Set Success to False when Warning_Mode is
Treat_As_Error and there are warnings.
* switch-m.ads, switch-m.adb (Normalize_Compiler_Switches): Do not skip
-gnatww Change gnatmake switch -S to -eS
(Scan_Make_Switches): Code reorganisation. Process separately multi
character switches and single character switches.
(Scan_Make_Switches): New Boolean out parameter Success. Set Success to
False when switch is not recognized by gnatmake.
(Scan_Make_Switches): Set Setup_Projects True when -p or
--create-missing-dirs is specified.
* fname.adb (Is_Predefined_File_Name): Return True for annex J
renamings Calendar, Machine_Code, Unchecked_Conversion and
Unchecked_Deallocation only when Renamings_Included is True.
* par.adb: Allow library units Calendar, Machine_Code,
Unchecked_Conversion and Unchecked_Deallocation to be recompiled even
when -gnatg is not specified.
(P_Interface_Type_Definition): Remove the formal Is_Synchronized because
there is no need to generate always a record_definition_node in case
of synchronized interface types.
(SIS_Entry_Active): Initialize global variable to False
(P_Null_Exclusion): For AI-447: Add parameter Allow_Anonymous_In_95 to
indicate cases where AI-447 says "not null" is legal.
* makeutl.ads, makeutil.adb (Executable_Prefix_Path): New function
* makegpr.adb (Check_Compilation_Needed): Take into account dependency
files with with several lines starting with the object fileb name.
(Scan_Arg): Set Setup_Projects True when -p or --create-missing-dirs
is specified.
(Initialize): Add the directory where gprmake is invoked in front of the
path, if it is invoked from a bin directory or with directory
information, so that the correct GNAT tools will be used when invoked
directly.
(Check_Compilation_Needed): Process correctly backslashes on Windows.
* vms_data.ads: Update switches/qualifiers
From-SVN: r123560
2007-04-06 Ed Schonberg <schonberg@adacore.com>
Robert Dewar <dewar@adacore.com>
Bob Duff <duff@adacore.com>
Gary Dismukes <dismukes@adacore.com>
* errout.adb (Unwind_Internal_Type): Use predicate
Is_Access__Protected_Subprogram_Type.
* freeze.adb (Size_Known): Use First/Next_Component_Or_Discriminant
(Freeze_Entity, packed array case): Do not override explicitly set
alignment and size clauses.
(Freeze_Entity): An entity declared in an outer scope can be frozen if
the enclosing subprogram is a child unit body that acts as a spec.
(Freeze_Entity): Use new predicate Is_Access_Protected_Subprogram_Type.
(Freeze_Record_Type): New Ada 2005 processing for reverse bit order
Remove all code for DSP option
* layout.adb (Layout_Record_Type): Use First/
Next_Component_Or_Discriminant
(Layout_Type): Use new predicate Is_Access_Protected_Subprogram_Type,
to handle properly the anonymous access case.
* sem_attr.adb (Build_Access_Object_Type): Use E_Access_Attribute_Type
for all access attributes, because overload resolution should work the
same for 'Access, 'Unchecked_Access, and 'Unrestricted_Access. This
causes the error message for the ambiguous "X'Access = Y'Access" and
"X'Unrestricted_Access = Y'Access" and so forth to match.
(Resolve_Attribute, case 'Access): Remove use of Original_Access_Type,
now that anonymous access to protected operations have their own kind.
(Resolve_Attribute): In case of dispatching call check the violation of
restriction No_Dispatching_Calls.
(Check_Array_Type): Check new -gnatyA array index style option
* sem_ch3.ads, sem_ch3.adb (Derived_Type_Declaration): Reject an
attempt to derive from a synchronized tagged type.
(Analyze_Type_Declaration): If there is a incomplete tagged view of the
type, inherit the class-wide type already created, because it may
already have been used in a self-referential anonymous access component.
(Mentions_T): Recognize self-referential anonymous access components
that use (a subtype of) the class-wide type of the enclosing type.
(Build_Derived_Record_Type): Add earlier setting of Is_Tagged_Type. Pass
Derived_Type for Prev formal on call to
Check_Anonymous_Access_Components rather than Empty.
(Make_Incomplete_Type_Declaration): Add test for case where the type has
a record extension in deciding whether to create a class-wide type,
rather than just checking Tagged_Present.
(Replace_Anonymous_Access_To_Protected_Subprogram): Procedure applies
to stand-alone object declarations as well as component declarations.
(Array_Type_Declaration): Initialize Packed_Array_Type to Empty, to
prevent accidental overwriting when enclosing package appears in
a limited_with_clause.
(Array_Type_Declaration): If the component type is an anonymous access,
the associated_node for the itype is the type declaration itself.
(Add_Interface_Tag_Components): Modified to support concurrent
types with abstract interfaces.
(Check_Abstract_Interfaces): New subprogram that verifies the ARM
rules 3.9.4 (15/2), 9.1 (9.d/2) and 9.4 (11.d/2).
(Build_Derived_Record_Type): Add call to Analyze_Interface_Declaration
to complete the decoration of synchronized interface types. Add also
a call to Check_Abstract_Interfaces to verify the ARM rules.
(Derive_Interface_Subprograms): Modified to support concurrent types
with abstract interfaces.
(Analyze_Subtype_Indication): Resolve the range with the given subtype
mark, rather than delaying the full resolution depending on context.
(Analyze_Component_Declaration,Analyze_Interface_Declaration,
Analyze_Object_Declaration,Analyze_Subtype_Declaration,
Array_Type_Declaration,Build_Derived_Record_Type,
Build_Discriminated_Subtype,Check_Abstract_Overriding,Check_Completion,
Derive_Interface_Subprograms,Derive_Subprogram,Make_Class_Wide_Type,
Process_Full_View,Record_Type_Declaration): Split Is_Abstract flag into
Is_Abstract_Subprogram and Is_Abstract_Type. Make sure these are
called only when appropriate.
(Copy_And_Swap): Copy Has_Unreferenced_Objects flag from full type
to private type.
(Analyze_Subtype_Declaration): For an access subtype declaration, create
an itype reference for the anonymous designated subtype, to prevent
scope anonmalies in gigi.
(Build_Itype_Reference): New utility, to simplify construction of such
references.
From-SVN: r123559
2007-04-06 Robert Dewar <dewar@adacore.com>
Thomas Quinot <quinot@adacore.com>
Ed Schonberg <schonberg@adacore.com>
Bob Duff <duff@adacore.com>
* einfo.ads, einfo.adb: (First_Component_Or_Discriminant): New function
(Next_Component_Or_Discriminant): New function and procedure
(First_Index, First_Literal, Master_Id,
Set_First_Index, Set_First_Literal, Set_Master_Id):
Add missing Ekind assertions.
(Is_Access_Protected_Subprogram_Type): New predicate.
(Has_RACW): New entity flag, set on package entities to indicate that
the package contains the declaration of a remote accecss-to-classwide
type.
(E_Return_Statement): This node type has the Finalization_Chain_Entity
attribute, in case the result type has controlled parts.
(Requires_Overriding): Add this new flag, because "requires
overriding" is subtly different from "is abstract" (see AI-228).
(Is_Abstract): Split Is_Abstract flag into Is_Abstract_Subprogram and
Is_Abstract_Type. Make sure these are called only when appropriate.
(Has_Pragma_Unreferenced_Objects): New flag
* exp_ch5.adb (Expand_N_Assignment_Statement): If the left-hand side is
class-wide, the tag of the right-hand side must be an exact match, not
an ancestor of that of the object on left-hand side.
(Move_Activation_Chain): New procedure to create the call to
System.Tasking.Stages.Move_Activation_Chain.
(Expand_N_Extended_Return_Statement): Generate code to call
System.Finalization_Implementation.Move_Final_List at the end of a
return statement if the function's result type has controlled parts.
Move asserts to Build_In_Place_Formal.
(Move_Final_List): New function to create the call statement.
(Expand_N_Assignment_Statement): In case of assignment to a class-wide
tagged type, replace generation of call to the run-time subprogram
CW_Membership by call to Build_CW_Membership.
(Expand_N_Return_Statement): Replace generation of call to the run-time
subprogram Get_Access_Level by call to Build_Get_Access_Level.
(Expand_N_Simple_Function_Return): Replace generation of call to the
run-time subprogram Get_Access_Level by call to Build_Get_Access_Level.
* exp_ch6.ads, exp_ch6.adb (Expand_Call): Use new predicate
Is_Access_Protected_Subprogram_Type, to handle both named and anonymous
access to protected operations.
(Add_Task_Actuals_To_Build_In_Place_Call): New procedure to add the
master and chain actual parameters to a build-in-place function call
involving tasks.
(BIP_Formal_Suffix): Add new enumeration literals to complete the case
statement.
(Make_Build_In_Place_Call_In_Allocator,
Make_Build_In_Place_Call_In_Anonymous_Context,
Make_Build_In_Place_Call_In_Assignment,
Make_Build_In_Place_Call_In_Object_Declaration): Call
Add_Task_Actuals_To_Build_In_Place_Call with the appropriate master.
(Expand_Inlined_Call): If the subprogram is a null procedure, or a
stubbed procedure with a null body, replace the call with a null
statement without using the full inlining machinery, for efficiency
and to avoid invalid values in source file table entries.
* exp_ch8.adb (Expand_N_Object_Renaming_Declaration): Add support for
renamings of calls to build-in-place functions.
* rtsfind.adb (RTE_Record_Component_Available): New subprogram that
provides the functionality of RTE_Available to record components.
(RTU_Entity): The function Entity has been renamed to RTU_Entity
to avoid undesired overloading.
(Entity): New subprogram that returns the entity for the referened
unit. If this unit has not been loaded, it returns Empty.
(RE_Activation_Chain_Access, RE_Move_Activation_Chain): New entities.
Remove no longer used entities.
(RE_Finalizable_Ptr_Ptr, RE_Move_Final_List): New entities.
(RE_Type_Specific_Data): New entity.
(RE_Move_Any_Value): New entity.
(RE_TA_A, RE_Get_Any_Type): New entities.
(RE_Access_Level, RE_Dispatch_Table, E_Default_Prim_Op_Count,
RE_Prims_Ptr, RE_RC_Offset, RE_Remotely_Callable,
RE_DT_Typeinfo_Ptr_Size, RE_Cstring_Ptr, RE_DT_Expanded_Name): Added.
(Entity): New subprogram that returns the entity for the referened
unit. If this unit has not been loaded, it returns Empty.
(RTE): Addition of a new formal that extends the search to the scopes
of the record types found in the chain of the package.
* sem_ch6.ads, sem_ch6.adb (Check_Overriding_Indicator): Print
"abstract subprograms must be visible" message, whether or not the type
is an interface; that is, remove the special case for interface types.
(Analyze_Function_Return): Remove error message "return of task objects
is not yet implemented" because this is now implemented.
(Create_Extra_Formals): Add the extra master and activation chain
formals in case the result type has tasks.
Remove error message "return of limited controlled objects is not yet
implemented".
(Create_Extra_Formals): Add the extra caller's finalization list formal
in case the result type has controlled parts.
(Process_Formals): In case of access formal types there is no need
to continue with the analysis of the formals if we already notified
errors.
(Check_Overriding_Indicator): Add code to check overriding of predefined
operators.
(Create_Extra_Formals): Prevent creation of useless Extra_Constrained
flags for formals that do not require them,.
(Enter_Overloaded_Entity): Do not give -gnatwh warning message unless
hidden entity is use visible or directly visible.
(Analyze_Abstract_Subprogram_Declaration,Analyze_Subprogram_Body,
Analyze_Subprogram_Declaration,Analyze_Subprogram_Specification,
Check_Conventions,Check_Delayed_Subprogram,Make_Inequality_Operator,
New_Overloaded_Entity): Split Is_Abstract flag into
Is_Abstract_Subprogram and Is_Abstract_Type.
* s-finimp.ads, s-finimp.adb (Move_Final_List): New procedure to move
a return statement's finalization list to the caller's list, used for
build-in-place functions with result type with controlled parts.
Remove no longer used entities.
* s-taskin.ads (Activation_Chain): Remove pragma Volatile. It is no
longer needed, because the full type is now limited, and therefore a
pass-by-reference type.
(Foreign_Task_Level): New constant.
* s-tassta.ads, s-tassta.adb (Move_Activation_Chain): New procedure to
move tasks from the activation chain belonging to a return statement to
the one passed in by the caller, and update the master to the one
passed in by the caller.
(Vulnerable_Complete_Master, Check_Unactivated_Tasks): Check the master
of unactivated tasks, so we don't kill the ones that are being returned
by a build-in-place function.
(Create_Task): Ignore AI-280 for foreign threads.
From-SVN: r123558
2007-04-06 Olivier Hainque <hainque@adacore.com>
Eric Botcazou <botcazou@adacore.com>
* decl.c (gnat_to_gnu_entity) <E_Constant>: Associate an external
VAR_DECL to a CONST_DECL we make for a public constant when we know the
corresponding definition has created the so made visible variable.
Handle anonymous access to protected subprogram.
(gnat_to_gnu_entity) <E_Variable>: Do not make the underlying type of an
object with an address clause volatile. Re-enable original fix.
<E_Subprogram_Type>: Set TYPE_REF_CAN_ALIAS_ALL on the reference type
too.
(gnat_to_gnu_entity) <E_Class_Wide_Type>: Retrieve the TYPE_DECL
associated with either the Equivalent or Root type, instead of the
naked type node.
(gnat_to_gnu_entity): Manually mark the top of the DECL_FIELD_OFFSET
subtree for every field of a global record type.
(gnat_to_gnu_entity) <E_Record_Subtype>: If the subtype has
discriminants, invoke again variable_size on its newly computed sizes.
From-SVN: r123557
2007-04-06 Nicolas Roche <roche@adacore.com>
* cstreams.c (__gnat_full_name): Fix issues on VxWorks 6.x for which
absolute path can have the following form: device:/a/b. In this case
'/' should be inserted between the path and the filename.
From-SVN: r123556
2007-04-06 Gary Dismukes <dismukes@adacore.com>
* cstand.adb (Create_Standard): When the target's storage unit size is
greater than a byte, set Has_Non_Standard_Rep and Has_Pragma_Pack on
Standard_String.
From-SVN: r123555
2007-04-06 Thomas Quinot <quinot@adacore.com>
Ed Schonberg <schonberg@adacore.com>
Gary Dismukes <dismukes@adacore.com>
* checks.ads, checks.adb (Selected_Range_Checks): No range check is
required for a conversion between two access-to-unconstrained-array
types.
(Expr_Known_Valid): Validity checks do not apply to discriminants, but
to discriminant constraints on discriminant objects. This rule must
apply as well to discriminants of protected types in private components.
(Null_Exclusion_Static_Checks): If No_Initialization is set on an
object of a null-excluding access type then don't require the
the object declaration to have an expression and don't emit a
run-time check.
From-SVN: r123554
2007-04-06 Ed Schonberg <schonberg@adacore.com>
Bob Duff <duff@adacore.com>
* atree.h, atree.ads, atree.adb (Copy_Node_With_Replacement): When
copying a parameter list in a call, set properly the First_Named_Formal
and Next_Named_Formal fields in the new list and in the enclosing call.
(Watch_Node,New_Node_Breakpoint,New_Node_Debugging_Output): Shorten
names, to ease typing in the debugger. Improve comments.
(Watch_Node): New variable, intended to be set in the debugger.
(New_Node_Breakpoint): New do-nothing procedure to set a breakpoint on,
called when the watched node is created.
(New_Node_Debugging_Output): Combined version of local procedures
New_Node_Debugging_Output and New_Entity_Debugging_Output, now global,
with a parameter so that conditional breakpoints like "if Node = 12345"
work.
(New_Node, New_Entity): Call the global New_Node_Debugging_Output.
Add Elist1 function
From-SVN: r123553
2007-04-06 Geert Bosch <bosch@adacore.com>
Ed Schonberg <schonberg@adacore.com>
Javier Miranda <miranda@adacore.com>
Bob Duff <duff@adacore.com>
* exp_ch4.adb (Expand_N_Type_Conversion): Remove special processing
for conversion of a Float_Type'Truncation to integer.
* exp_attr.adb (Is_Inline_Floating_Point_Attribute): New function to
check if a node is an attribute that can be handled directly by the
back end.
(Expand_N_Attribute_Reference): Suppress expansion of floating-point
attributes that can be handled directly by the back end.
(Expand_N_Attribute_Reference, case 'Access and 'Unchecked_Access):
use new predicate Is_Access_Protected_Subprogram_Type.
(Expand_N_Attribute_Reference, case 'Write): The reference is legal for
and Unchecked_Union if it is generated as part of the default Output
procedure for a type with default discriminants.
(Expand_N_Attribute_Reference): Avoid the expansion of dispatching calls
if we are compiling under restriction No_Dispatching_Calls.
(Constrained): Use Underlying_Type, in case the type is private without
discriminants, but the full type has discriminants.
(Expand_N_Attribute_Reference): Replace call to Get_Access_Level by
call to Build_Get_Access_Level.
(Expand_N_Attribute_Reference): The use of 'Address with class-wide
interface objects requires a call to the run-time subprogram that
returns the base address of the object.
(Valid_Conversion): Improve error message on illegal attempt to store
an anonymous access to subprogram value into a record component.
* sem_res.adb (Resolve_Equality_Op): Detect ambiguity for "X'Access =
null".
(Simplify_Type_Conversion): New procedure that performs simplification
of Int_Type (Float_Type'Truncation (X)).
(Resolve_Type_Conversion): Call above procedure after resolving operand
and before performing checks. This replaces the existing ineffective
code in Exp_Ch4.
(Set_String_Literal_Subtype): When creating the internal static lower
bound subtype for a string literal, use a newly created copy of the
subtree representing the lower bound.
(Resolve_Call): Exclude build-in-place function calls from transient
scope treatment. Update comments to describe this exception.
(Resolve_Equality_Op): In case of dispatching call check violation of
restriction No_Dispatching_Calls.
(Resolve_Call): If the call returns an array, the context imposes the
component type of the array, and the function has one non-defaulted
parameter, rewrite the call as the indexing of a call with a single
parameter, to handle an Ada 2005 syntactic ambiguity for calls written
in prefix form.
(Resolve_Actuals): If an actual is an allocator for an access parameter,
the master of the created object is the innermost enclosing statement.
(Remove_Conversions): For a binary operator, check if type of second
formal is numeric, to check if an abstract interpretation is present
in the case of exponentiation as well.
From-SVN: r123552
2007-04-06 Ed Schonberg <schonberg@adacore.com>
Javier Miranda <miranda@adacore.com>
* exp_ch3.ads, exp_ch3.adb (Analyze_N_Full_Type_Declaration): For an
anonymous access component, do not create a master_id if type already
has one, as may happen if the type is a subcomponent of a packed array
type.
(Build_Init_Procedure, Component_Needs_Simple_Initialization,
Initialize_Tag): Remove code associated with the old CPP pragmas.
CPP_Virtual and CPP_Vtable are no longer supported.
(Build_Offset_To_Top_Internal): Add support for concurrent record types
(Build_Offset_To_Top_Functions): Add support for concurrent record types
(Freeze_Record_Type): Remove call to
Init_Predefined_Interface_Primitives.
(Init_Secondary_Tags.Initialize_Tag): New subprogram containing all the
code required to initialize the tags of the secondary dispatch tables.
This leaves the algoritm more clear.
(Init_Secondary_Tags): Add support for concurrent record types
(Make_Predefined_Primitive_Specs): Code cleanup.
(Predefined_Primitive_Bodies): Code cleanup.
(Build_Master_Renaming): New local subprogram.
(Expand_N_Full_Type_Declaration): Build the master_id associated with
anonymous access to task type components.
(Expand_N_Subtype_Indication): The bounds of a range constraint in a
subtype indication are resolved during analysis, and must not be done
here.
(Stream_Operation_OK): Check Restriction_Active before RTE_Available.
From-SVN: r123551
2007-04-06 Javier Miranda <miranda@adacore.com>
* a-tags.ads, a-tags.adb (Object_Specific_Data): Remove
component Num_Prim_Ops.
(Set_Num_Prim_Ops): Removed.
Remove all the assertions because all the routines of this
package are inline always.
(Get_Offset_Index): Add support to primary dispatch tables.
Move the documentation about the dispatch table to a-tags.ads
(Set_External_Tag): Removed
(Inherit_TSD): Removed.
(Interface_Data_Element, Interfaces_Array, Interface_Data): Declarations
moved to a-tags.ads
(Displace, IW_Membership, Inherit_TSD, Interface_Ancestor_Tags,
Register_Interface_Tag, Set_Offset_To_Top): Update all the occurrences
of the TSD field "Table" because this field has been renamed to
"Ifaces_Table".
(Inherit_CPP_DT): Removed.
(K_Typeinfo, K_Offset_To_Top, K_Tagged_Kind, K_Signature,
Cstring, Tag_Table, Type_Specific_Data, Dispatch_Table): These
declarations have been moved to a-tags.ads
(Check_Size): Removed.
(Expanded_Name): Updated to get access to the new field of TSD
containing the address of the expanded name.
(Get_Access_Level/Set_Access_Level): Removed.
(Get_Predefined_Prim_Op_Address): Removed.
(Set_Predefined_Prim_Op_Address): Removed.
(Get_Prim_Op_Address/Set_Prim_Op_Address): Removed.
(Get_Remotely_Callable/Set_Remotely_Callable): Removed.
(Set_Expanded_Name): Removed.
(Inherit_DT): Removed.
(Inherit_CPP_DT): Removed.
(Set_RC_Offset): Removed.
(Set_TSD): Removed.
(Base_Address): New function that displaces "this" to point to the base
of the object (that is, to point to the primary tag of the object).
From-SVN: r123550
2007-04-06 Jose Ruiz <ruiz@adacore.com>
* a-retide.adb: Add elaboration code to ensure that the tasking run
time is initialized when using delay operations even when no task is
created.
From-SVN: r123549
2007-04-06 Quentin Ochem <ochem@adacore.com>
* ali.ads, ali.adb (Get_Nat): Raise an exception if the file cursor is
not on a natural.
(Scan_ALI): Cancel the xref line if there has been a reading ALI error.
From-SVN: r123548
2007-04-06 Pascal Obry <obry@adacore.com>
Thomas Quinot <quinot@adacore.com>
* g-os_lib.ads (Current_Time): New function. Returns the current
system time as an OS_Time value.
* s-osprim.ads (Clock): Add more precise definition of UNIX epoch.
(Monotonic_Clock): Same.
From-SVN: r123547
2007-04-06 Pascal Obry <obry@adacore.com>
* s-osprim-mingw.adb (Timed_Delay): Use the right clock (standard one
or the monotonic used by Ada.Real_Time) to compute the sleep duration
on Windows.
From-SVN: r123546
2007-04-06 Olivier Hainque <hainque@adacore.com>
* adaint.c:
(convert_addresses): Adjust prototype and dummy definition to expect an
extra file_name argument.
* gmem.c (__gnat_convert_addresses): Wrapper to convert_addresses,
filling the now expected file_name argument with the appropriate
argv[0] expansion.
(__gnat_gmem_a2l_initialize, __gnat_gmem_read_next_frame): Use it.
(tracebk): Array of void * instead of char *, corresponding to what
convert_addresses expects.
(exename): New static global, to hold the executable file name to be
used in all convert_addresses invocations.
(gmem_read_backtrace, __gnat_gmem_symbolic): Account for tracebk type
change.
(__gnat_gmem_a2l_initialize): Resolve exename.
(__gnat_convert_addresses): Use exename as the convert_addresses
file_name argument.
* g-trasym.adb (Symbolic_Traceback): Adjust signature of imported
"convert_addresses", now expecting a filename argument. Import the
necessary entities to compute the filename to use and pass it to
convert_addresses.
From-SVN: r123544
2007-04-06 Hristian Kirtchev <kirtchev@adacore.com>
Vincent Celier <celier@adacore.com>
* a-calend-vms.ads, a-calend.ads, a-calend.adb, a-calend-vms.adb:
New version of Ada.Calendar which supports the new upper bound of Ada
time (2399-12-31 86_399.999999999).
The following modifications have been made to the package:
- New representation of time as count of nanoseconds since the start of
Ada time (1901-1-1 0.0).
- Target independent Split and Time_Of routines which service both
Ada 95 and Ada 2005 code.
- Target independent interface to the Ada 2005 children of Calendar.
- Integrated leap seconds into Ada 95 and Ada 2005 mode.
- Handling of non-leap centenial years.
- Updated clock function.
- Updated arithmetic and comparison operators.
* a-caldel.adb (To_Duration): Add call to target independent routine in
Ada.Calendar to handle the conversion of time to duration.
* sysdep.c (__gnat_localtime_tzoff): Test timezone before setting off
(UTC Offset).
If timezone is obviously incorrect (outside of -14 hours .. 14 hours),
set off to 0.
(__gnat_localtime_tzoff for Lynx and VxWorks): Even though these
targets do not have a natural time zone, GMT is used as a default.
(__gnat_get_task_options): New.
* a-direct.adb (Modification_Time): Add with and use clauses for
Ada.Calendar and Ada.
Calendar.Formatting. Remove with clause for Ada.Unchecked_Conversion
since it is no longer needed.
(Duration_To_Time): Removed.
(OS_Time_To_Long_Integer): Removed.
(Modification_Time): Rewritten to use Ada.Calendar and Ada.Calendar.
Formatting Time_Of routines which automatically handle time zones,
buffer periods and leap seconds.
* a-calari.ads, a-calari.adb ("+", "-", Difference): Add calls to
target independent routines in Ada.Calendar.
* a-calfor.ads, a-calfor.adb:
Code cleanup and addition of validity checks in various routines.
(Day_Of_Week, Split, Time_Of): Add call to target independent routine in
Ada.Calendar.
* a-catizo.ads, a-catizo.adb (UTC_Time_Offset): Add call to target
independent routine in Ada.Calendar.
From-SVN: r123543
2007-04-06 Thomas Quinot <quinot@adacore.com>
Pat Rogers <rogers@adacore.com>
Pascal Obry <obry@adacore.com>
* g-stsifd-sockets.adb: New file.
* g-socthi.ads, g-socket.adb, g-socthi-vxworks.adb,
g-socthi-vxworks.ads, g-socthi-mingw.ads, g-socthi-vms.ads,
g-socthi-vms.adb: Move signalling
fd management to a nested package, so that they can conveniently be
moved to a subunit that is shared across Windows, VMS, and VxWorks
(Ada implementation) or completed with imported bodies from socket.c
(UNIX case).
(Read_Signalling_Fd, Write_Signalling_Fd, Create_Signalling_Fds): New
subprograms.
(Check_Selector): Use Read_Signalling_Fd to read and discard data from
the signalling file descriptor.
(Abort_Selector): Use Write_Signalling_Fd to write dummy data to the
signalling file descriptor.
(Create_Selector): Use new C-imported subprogram Create_Signalling_Fds
instead of creating a pair of sockets for signalling here.
* g-socthi.adb: Ditto.
Set the runtime process to ignore SIGPIPEs on platforms that support
neither SO_NOSIGPIPE nor MSG_NOSIGNAL functionality.
* g-socthi-mingw.adb: Ditto.
(WS_Version): Use Windows 2.2.
Use Winsock 2.2 (instead of 1.1) for the GNAT.Socket API.
* g-soliop-mingw.ads: Link with ws2_32 for Windows 2.x support.
Use Winsock 2.2 (instead of 1.1) for the GNAT.Socket API.
* Makefile.in: New libgnat pair g-stsifd.adb<g-stsifd-sockets.adb.
added GNAT byte swapping facility
Update FreeBSD THREADSLIB from -lc_r to -lpthread, for FreeBSD 6.
* g-bytswa.adb, g-bytswa-x86.adb, g-bytswa.ads: New files.
* socket.c (__gnat_read_signalling_fd, __gnat_write_controlling_fd):
New subprograms.
(__gnat_create_signalling_fds): New subprogram.
Set the runtime process to ignore SIGPIPEs on platforms that support
neither SO_NOSIGPIPE nor MSG_NOSIGNAL functionality.
From-SVN: r123542
* a-except.adb, a-except.ads, a-except-2005.ads, a-except-2005.adb
(Local_Raise): New dummy procedure called when a raise is converted
to a local goto. Used for debugger to detect that the exception
is raised.
* debug.adb: Document new d.g flag (expand local raise statements to
gotos even if pragma Restriction (No_Exception_Propagation) is not set)
* exp_sel.adb: Use Make_Implicit_Exception_Handler
* exp_ch11.adb (Expand_Exception_Handlers): Use new flag -gnatw.x to
suppress warnings for unused handlers.
(Warn_If_No_Propagation): Use new flag -gnatw.x to suppress
warnings for raise statements not handled locally.
(Get_RT_Exception_Entity): New function
(Get_Local_Call_Entity): New function
(Find_Local_Handler): New function
(Warn_If_No_Propagation): New procedure
(Expand_At_End_Handler): Call Make_Implicit_Handler
(Expand_Exception_Handlers): Major additions to deal with local handlers
(Expand_N_Raise_Constraint_Error, Expand_N_Raise_Program_Error,
Expand_N_Raise_Storage_Error, (Expand_N_Raise_Statement): Add handling
for local raise
* exp_ch11.ads (Get_RT_Exception_Entity): New function
(Get_Local_Call_Entity): New function
* gnatbind.adb (Restriction_List): Add No_Exception_Propagation to list
of restrictions that the binder will never suggest adding.
* par-ch11.adb (P_Exception_Handler): Set Local_Raise_Statements field
to No_Elist.
* restrict.adb (Check_Restricted_Unit): GNAT.Current_Exception may not
be with'ed in the presence of pragma Restriction
(No_Exception_Propagation).
* sem.adb (Analyze): Add entries for N_Push and N_Pop nodes
* sem_ch11.adb (Analyze_Exception_Handler): If there is a choice
parameter, then the handler is not a suitable target for a local raise,
and this is a violation of restriction No_Exception_Propagation.
(Analyze_Handled_Statements): Analyze choice parameters in exception
handlers before analyzing statement sequence (needed for proper
detection of local raise statements).
(Analyze_Raise_Statement): Reraise statement is a violation of the
No_Exception_Propagation restriction.
* s-rident.ads: Add new restriction No_Exception_Propagation
* tbuild.ads, tbuild.adb (Make_Implicit_Exception_Handler): New
function, like Make_Exception_Handler but sets Local_Raise_Statements
to No_List.
(Add_Unique_Serial_Number): Deal with case where this is called during
processing of configuration pragmas.
From-SVN: r123541
