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The problem is that the implementation of the No_Default_Initialization
restriction assumes that no type initialization routines are needed and,
therefore, builds a dummy version of them, which goes against their use
for box-initialized components in aggregates.
Therefore this use needs to be flagged as violating the restriction too.
gcc/ada/
* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst
(No_Default_Initialization): Mention components alongside variables.
* exp_aggr.adb (Build_Array_Aggr_Code.Gen_Assign): Check that the
restriction No_Default_Initialization is not in effect for default
initialized component.
(Build_Record_Aggr_Code): Likewise.
* gnat_rm.texi: Regenerate.
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This implements the first half of the Generalized Finalization proposal,
namely the Finalizable aspect as well as its optional relaxed semantics
for the finalization operations, but the latter part is only implemented
for dynamically allocated objects.
In accordance with the spirit, if not the letter, of the proposal, this
implements the finalizable types declared with strict semantics for the
finalization operations as a direct generalization of controlled types,
which in turn makes it possible to reimplement the latter types in terms
of the former types and ensures full interoperability between them.
The relaxed semantics for the finalization operations is also a direct
generalization of the GNAT pragma No_Heap_Finalization for dynamically
allocated objects, in that it extends the effects of the pragma to all
access types designating the finalizable type, instead of just applying
them to library-level named access types.
gcc/ada/
* aspects.ads (Aspect_Id): Add Aspect_Finalizable.
(Implementation_Defined_Aspect): Add True for Aspect_Finalizable.
(Operational_Aspect): Add True for Aspect_Finalizable.
(Aspect_Argument): Add Expression for Aspect_Finalizable.
(Is_Representation_Aspect): Add False for Aspect_Finalizable.
(Aspect_Names): Add Name_Finalizable for Aspect_Finalizable.
(Aspect_Delay): Add Always_Delay for Aspect_Finalizable.
* checks.adb: Add with and use clauses for Sem_Elab.
(Install_Primitive_Elaboration_Check): Call Is_Controlled_Procedure.
* einfo.ads (Has_Relaxed_Finalization): Document new flag.
(Is_Controlled_Active): Update documentation.
* exp_aggr.adb (Generate_Finalization_Actions): Replace Find_Prim_Op
with Find_Controlled_Prim_Op for Name_Finalize.
* exp_attr.adb (Expand_N_Attribute_Reference) <Finalization_Size>:
Return 0 if the prefix type has relaxed finalization.
* exp_ch3.adb (Build_Equivalent_Record_Aggregate): Return Empty if
the type needs finalization.
(Expand_Freeze_Record_Type): Call Find_Controlled_Prim_Op instead of
Find_Prim_Op for Name_{Adjust,Initialize,Finalize}.
Call Make_Finalize_Address_Body for all controlled types.
* exp_ch4.adb (Insert_Dereference_Action): Do not generate a call to
Adjust_Controlled_Dereference if the designated type has relaxed
finalization.
* exp_ch6.adb (Needs_BIP_Collection): Return false for an untagged
type that has relaxed finalization.
* exp_ch7.adb (Allows_Finalization_Collection): Return false if the
designated type has relaxed finalization.
(Check_Visibly_Controlled): Call Find_Controlled_Prim_Op instead of
Find_Prim_Op.
(Make_Adjust_Call): Likewise.
(Make_Deep_Record_Body): Likewise.
(Make_Final_Call): Likewise.
(Make_Init_Call): Likewise.
* exp_disp.adb (Set_All_DT_Position): Remove obsolete warning.
* exp_util.ads: Add with and use clauses for Snames.
(Find_Prim_Op): Add precondition.
(Find_Controlled_Prim_Op): New function declaration.
(Name_Of_Controlled_Prim_Op): Likewise.
* exp_util.adb: Remove with and use clauses for Snames.
(Build_Allocate_Deallocate_Proc): Do not build finalization actions
if the designated type has relaxed finalization.
(Find_Controlled_Prim_Op): New function.
(Find_Last_Init): Call Find_Controlled_Prim_Op instead of
Find_Prim_Op.
(Name_Of_Controlled_Prim_Op): New function.
* freeze.adb (Freeze_Entity.Freeze_Record_Type): Propagate the
Has_Relaxed_Finalization flag from components.
* gen_il-fields.ads (Opt_Field_Enum): Add Has_Relaxed_Finalization.
* gen_il-gen-gen_entities.adb (Entity_Kind): Likewise.
* sem_aux.adb (Is_By_Reference_Type): Return true for all controlled
types.
* sem_ch3.adb (Build_Derived_Record_Type): Do not special case types
declared in Ada.Finalization.
(Record_Type_Definition): Propagate the Has_Relaxed_Finalization
flag from components.
* sem_ch13.adb (Analyze_Aspects_At_Freeze_Point): Also process the
Finalizable aspect.
(Analyze_Aspect_Specifications): Likewise. Call Flag_Non_Static_Expr
in more cases.
(Check_Aspect_At_Freeze_Point): Likewise.
(Inherit_Aspects_At_Freeze_Point): Likewise.
(Resolve_Aspect_Expressions): Likewise.
(Resolve_Finalizable_Argument): New procedure.
(Validate_Finalizable_Aspect): Likewise.
* sem_elab.ads: Add with and use clauses for Snames.
(Is_Controlled_Procedure): New function declaration.
* sem_elab.adb: Remove with and use clauses for Snames.
(Is_Controlled_Proc): Move to...
(Is_Controlled_Procedure): ...here and rename.
(Check_A_Call): Call Find_Controlled_Prim_Op instead of
Find_Prim_Op.
(Is_Finalization_Procedure): Likewise.
* sem_util.ads (Propagate_Controlled_Flags): Update documentation.
* sem_util.adb (Is_Fully_Initialized_Type): Replace call to
Find_Optional_Prim_Op with Find_Controlled_Prim_Op.
Call Has_Null_Extension only for derived tagged types.
(Propagate_Controlled_Flags): Propagate Has_Relaxed_Finalization.
* snames.ads-tmpl (Name_Finalizable): New name.
(Name_Relaxed_Finalization): Likewise.
* libgnat/s-finroo.ads (Root_Controlled): Add Finalizable aspect.
* doc/gnat_rm/gnat_language_extensions.rst: Document implementation
of Generalized Finalization.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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The argument to pragma Extensions_Allowed to enable all extensions is
no longer "All", but instead "All_Extensions".
gcc/ada/
* doc/gnat_rm/gnat_language_extensions.rst: Update documentation.
* doc/gnat_rm/implementation_defined_pragmas.rst: Update
documentation.
* errout.adb
(Error_Msg_GNAT_Extension): Update error message text.
* par-prag.adb: Update pragma parsing. This includes changing the
the name of the Check_Arg_Is_On_Or_Off formal parameter All_OK_Too
to All_Extensions_OK_Too.
* sem_prag.adb (Analyze_Pragma): In analyzing an
Extensions_Allowed pragma, replace uses of Name_All with
Name_All_Extensions; update a comment to reflect this.
* snames.ads-tmpl: Add Name_All_Extensions declaration.
* gnat_rm.texi: Regenerate.
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New pragma Interrupts_System_By_Default defaults all interrupts/signals
to system (which will inhibit the installation of default signal handlers).
Note this changes the ALI format: it optionally adds an identifier to
the 'P' line (similar to pragma Unreserve_All_Interrupts). As per comment
in lib-writ spec regarding new modifiers, adding modifiers to the P line
is always safe. Also note this does not introduce a bootstrap problem
because the compiler and binder do not set the underlying _gl global nor
do they use this pragma.
gcc/ada/
* ali.ads (Interrupts_Default_To_System): New boolean.
(Interrupts_Default_To_System_Specified): New boolean.
* ali.adb (Interrupts_Default_To_System_Specified): Initialize.
(Interrupts_Default_To_System): Initialize.
(Scan_ALI): Processing for "ID".
* bindgen.adb: Coallesce comments on interrupt settings to ...
(Gen_Adainit): Import Interrupts_Default_To_System flag and set if
pragma specified.
(Gen_Output_File_Ada): Generate Local_Interrupt_States according
to pragma.
* init.c: ... here.
[vxworks] (__gnat_install_handler): Test for interrupt_state.
(__gl_interrupts_default_to_system): New global flag.
(__gnat_get_interrupt_State): return interrupt state according to
new global flag.
* lib-writ.ads: Document "ID".
* lib-writ.adb: Write out "ID".
* opt.ads (Interrupts_System_By_Default): New boolean, defaulted
to False.
* par-prag.adb (Pragma_Interrupts_System_By_Default): New.
* sem_prag.adb (Pragma_Interrupts_System_By_Default): Handle it.
(Pragma_Interrupts_System_By_Default): Default it.
* snames.ads-tmpl (Name_Interrupts_System_By_Default): New name.
(Pragma_Interrupts_System_By_Default): New
* libgnarl/s-intman__posix.adb (Initialize): Ensure the
Keep_Unmasked signal is sigset-able.
* doc/gnat_rm/implementation_defined_pragmas.rst: Document pragma
Interrupts_System_By_Default.
* doc/gnat_ugn/the_gnat_compilation_model.rst (Configuration
pragmas): Add Interrupts_System_By_Default. (Partition-Wide
Settings): Mention pragma Interrupts_System_By_Default.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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They are still tailored to Ada 95 while the level of recommended support for
Bit Ordering was changed in Ada 2005.
gcc/ada/
* doc/gnat_rm/implementation_advice.rst (Representation Clauses):
Remove >> marker and add end of sentence after code-block directive.
(RM 13.5.3(7-8)): Update to Ada 2005 wording.
* doc/gnat_rm/implementation_defined_characteristics.rst
(RM 13.5.3(5)): Likewise.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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For completeness, the GNAT Reference Manual should document aspects and
pragmas that are specific to SPARK and described in the SPARK User's
Guide.
gcc/ada/
* doc/gnat_rm/implementation_defined_aspects.rst
(Aspect Subprogram_Variant): Refer to SPARK User's Guide.
* doc/gnat_rm/implementation_defined_pragmas.rst
(Pragma Subprogram_Variant): Document syntax to satisfy the
convention; refer to SPARK User's Guide for semantics.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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The Storage_Model pragma no longer exists.
gcc/ada/
* doc/gnat_rm/gnat_language_extensions.rst (Pragma Storage_Model):
Rename to Storage Model.
* doc/gnat_rm/implementation_defined_aspects.rst: Alphabetize.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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Previously this switch was emitting only info messages
which was both confusing in terms of the name of the
switch that was used internally and externally.
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Update
documentation for -gnatw.v.
* sem_ch13.adb: Convert all -gnatw.v related messages to warnings.
* gnat_ugn.texi: Regenerate.
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Previously the messages produced by this warning switch
were info messages that were suppressed with the same
methods as regular warnings. Since info messages are now
separated as a completely different class of messages then
these messages should be converted back to warnings in order
for the previous pragma based suppression methods to work.
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Update
documentation for -gnatw.n switch.
* exp_util.adb: Convert info messages into warnings.
* gnat_ugn.texi: Regenerate.
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Add a separate switch -gnatis to suppress info messages
separately from warning messages that are controlled by
-gnatws.
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Add
entry for -gnatis.
* errout.adb (Error_Msg_Internal): Stop printing info messages if
-gnatis was used.
* opt.ads: Add Info_Suppressed flag to track whether info messages
should be suppressed.
* switch-c.adb: Add parsing for -gnatis.
* gnat_ugn.texi: Regenerate.
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This patch moves the documentation for 'Super from gnat language extensions to
experimental language extensions.
gcc/ada/
* doc/gnat_rm/gnat_language_extensions.rst: Add entry for 'Super.
* doc/gnat_rm/implementation_defined_attributes.rst: Remove entry
for 'Super.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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This patch implements mutably tagged types via the new Size'Class aspect.
gcc/ada/
* doc/gnat_rm/gnat_language_extensions.rst: Add documentation for
mutably tagged type feature.
* aspects.ads: Add registration for 'Size'Class.
* einfo.ads: Add documentation for new components
Class_Wide_Equivalent_Type and Is_Mutably_Tagged_Type.
* exp_aggr.adb (Gen_Assign): Assume associated mutably tagged type
when class-wide equivalent type is encountered.
(Contains_Mutably_Tagged_Type): New subprogram.
(Convert_To_Positional): Assume associated mutably tagged type
when class-wide equivalent type is encountered.
(Is_Static_Element): Assume associated mutably tagged type when
class-wide equivalent type is encountered.
(Expand_Array_Aggregate): Assume associated mutably tagged type
when class-wide equivalent type is encountered.
(Expand_Record_Aggregate): Force mutably tagged records to be
expanded into assignments.
* exp_ch3.adb (Build_Array_Init_Proc): Assume associated mutably
tagged type when class-wide equivalent type is encountered.
(Simple_Initialization_OK): Disallow simple initialization for
class-wide equivalent types.
(Build_Init_Statements): Assume associated mutably tagged type
when class-wide equivalent type is encountered.
(Expand_Freeze_Array_Type): Ignore building of record init procs
for mutably tagged types.
(Expand_N_Full_Type_Declaration): Replace mutably tagged type
declarations with their associated class-wide equivalent types.
(Default_Initialize_Object): Add special handling for mutably
tagged types.
* exp_ch4.adb (Expand_N_Allocator): Add initialization for mutably
tagged types.
(Expand_Record_Equality): Generate mutably tagged unchecked
conversions.
* exp_ch5.adb (Expand_N_Assignment_Statement): Generate a special
assignment case for class-wide equivalent types which does tag
assignments and ignores certain checks.
* exp_ch6.adb (Expand_Call_Helper): Propagate constrained extra
formal actuals for mutably tagged types.
* exp_ch7.adb (Make_Init_Call): Handle mutably tagged type
initialization.
* exp_util.adb (Make_CW_Equivalent_Type): Modify to handle mutably
tagged objects which contain no initialization expression.
(Make_Subtype_From_Expr): Modify call to Make_CW_Equivalent_Type.
* exp_util.ads (Make_CW_Equivalent_Type): Move declaration from
body to spec.
* freeze.adb (Size_Known): No longer return false automatically
when a class-wide type is encountered.
(Freeze_Entity): Ignore error messages about size not being known
for mutably tagged types.
* gen_il-fields.ads: Register new fields
Class_Wide_Equivalent_Type and Is_Mutably_Tagged_Type.
* gen_il-gen-gen_entities.adb: Register new fields
Class_Wide_Equivalent_Type and Is_Mutably_Tagged_Type for type
entities.
* mutably_tagged.adb, mutably_tagged.ads
(Corresponding_Mutably_Tagged_Type): New subprogram.
(Depends_On_Mutably_Tagged_Ext_Comp): New subprogram.
(Get_Corresponding_Mutably_Tagged_Type_If_Present): New
subprogram.
(Get_Corresponding_Tagged_Type_If_Present): New subprogram.
(Is_Mutably_Tagged_Conversion): New subprogram.
(Is_Mutably_Tagged_CW_Equivalent_Type): New subprogram.
(Make_Mutably_Tagged_Conversion): New subprogram.
(Make_CW_Size_Compile_Check): New subprogram.
(Make_Mutably_Tagged_CW_Check): New subprogram.
* sem_aggr.adb (Resolve_Array_Aggregate): Skip tag checks for
class-wide equivalent types.
(Resolve_Aggr_Expr): Assume associated mutably tagged type when
class-wide equivalent type is encountered.
* sem_attr.adb (Analyze_Attribute): Allow 'Tag on mutably tagged
types.
(Resolve_Attribute): Detect errors for dependence of mutably
tagged extension type component.
* sem_ch12.adb (Instantiate_Object): Detect errors for dependence
of mutably tagged extension type component.
* sem_ch13.adb (Analyze_One_Aspect): Propagate 'Size'Class to
class-wide type.
(Analyze_Attribute_Definition_Clause): Add handling of 'Size'Class
by generating class-wide equivalent types and checking for illegal
uses.
* sem_ch2.adb (Analyze_Identifier): Generate unchecked conversion
for class-wide equivalent types.
* sem_ch3.adb (Analyze_Component_Declaration): Avoid unconstrained
errors on mutably tagged types.
(Analyze_Object_Declaration): Rewrite declarations of mutably
tagged types to use class-wide equivalent types.
(Array_Type_Declaration): Modify arrays of mutably tagged types to
use their corresponding class-wide equivalent types.
(Derived_Type_Declaration): Add various checks for mutably tagged
derived types.
* sem_ch4.adb (Analyze_Allocator): Replace reference to mutably
tagged type with cooresponding tagged type.
(Process_Indexed_Component): Generate unchecked conversion for
class-wide equivalent type.
(Analyze_One_Call): Generate unchecked conversion for class-wide
equivalent types.
(Analyze_Selected_Component): Assume reference to class-wide
equivalent type is associated mutably tagged type.
(Analyze_Type_Conversion): Generate unchecked conversion for
class-wide equivalent type.
* sem_ch5.adb (Analyze_Assignment): Assume associated mutably
tagged type when class-wide equivalent type is encountered.
(Analyze_Iterator_Specification): Detect errors for dependence of
mutably tagged extension type component.
* sem_ch6.adb (Create_Extra_Formals): Add code to generate extra
formal for mutably tagged types to signal if they are constrained.
* sem_ch8.adb (Analyze_Object_Renaming): Detect error on renaming
of mutably tagged extension type component.
(Analyze_Renaming_Primitive_Operation): Detect error on renaming
of mutably tagged extension type component.
* sem_res.adb (Resolve_Actuals): Allow class-wide arguments on
class-wide equivalent types.
(Valid_Conversion): Assume associated mutably tagged type when
class-wide equivalent type is encountered.
* sem_util.adb (Is_Fully_Initialized_Type): Flag mutably tagged
types as fully initialized.
(Needs_Simple_Initalization): Flag class-wide equivalent types as
needing initialization.
* gnat_rm.texi: Regenerate.
* gcc-interface/Make-lang.in: Add entry for mutably_tagged.o.
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The attribute is rejected except in attribute definition clauses, where it
is silently ignored (it's a by-product of the processing of the aspect).
gcc/ada/
* doc/gnat_rm/implementation_defined_attributes.rst (Iterable):
Delete entry.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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The GNAT-defined Super attribute was formerly disallowed for an object of a
derived tagged type having an abstract parent type. This rule has been relaxed;
an abstract parent type is now permitted as long as it is not an interface type.
Update the GNAT RM accordingly.
gcc/ada/
* doc/gnat_rm/implementation_defined_attributes.rst:
Update Super attribute documentation.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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Extend code comment; move recently added documentation from pragma
No_Tagged_Streams to restriction No_Streams.
gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst
(No_Tagged_Streams): Move documentation.
* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst
(No_Streams): Likewise.
* exp_disp.adb (Make_DT): Extend comment.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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Fix formatting; meaning is unaffected.
gcc/ada/
* doc/gnat_rm/implementation_of_ada_2012_features.rst:
Fix formatting.
* gnat_rm.texi: Regenerate.
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The list of implemented Ada 2012 features is now ordered by the AI
numbers. It has been sorted mechanically using the csplit command with
a bit of shell scripting.
gcc/ada/
* doc/gnat_rm/implementation_of_ada_2012_features.rst:
Order list by AI number.
* gnat_rm.texi: Regenerate.
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Fix inconsistent reference with "05" in the name of AI.
gcc/ada/
* doc/gnat_rm/implementation_of_ada_2012_features.rst
(AI-0216): Fix index reference.
* gnat_rm.texi: Regenerate.
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Update the documentation of warning messages that only
emit info messages to clearly reflect that they only emit
info messages and not warning messages.
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
Update the documentation of -gnatw.n and -gnatw.l
* gnat_ugn.texi: Regenerate.
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When both pragmas Discard_Names and No_Tagged_Streams apply to a tagged
type, the intended behavior is to prevent type names from leaking into
object code, as documented in GNAT RM.
However, while Discard_Names can be used as a configuration pragma,
No_Tagged_Streams must be applied to each type separately. This patch
enables the use of restriction No_Streams, which can be activated
globally, instead of No_Tagged_Streams on individual types.
When no tagged stream object can be created and allocated, then routines
that make use of the External_Tag won't be used.
gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst
(No_Tagged_Streams): Document how to avoid exposing entity names
for the entire partition.
* exp_disp.adb (Make_DT): Make use of restriction No_Streams.
* exp_put_image.adb (Build_Record_Put_Image_Procedure): Respect
Discard_Names in the generated Put_Image procedure.
* gnat_rm.texi: Regenerate.
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This patch adds a new mapping (Non_FIFO_Underlying_Priorities) for dynamically
setting task priorities in Windows when pragma Task_Dispatching_Policy
(FIFO_Within_Priorities) is not present. Additionally, it documents the
requirement to specify the pragma in order to use Set_Priority in the general
case.
gcc/ada/
* doc/gnat_ugn/platform_specific_information.rst: Add note about
different priority level granularities under different policies in
Windows and move POSIX related info into new section.
* libgnarl/s-taprop.ads: Add note about Task_Dispatching_Policy.
* libgnarl/s-taprop__mingw.adb:
(Set_Priority): Add use of Non_FIFO_Underlying_Priorities.
* libgnat/system-mingw.ads: Add documentation for modifying
priority mappings and add alternative mapping
Non_FIFO_Underlying_Priorities.
* gnat_ugn.texi: Regenerate.
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Enforce Max_Entry_Queue_Length (and its
synonym Max_Entry_Queue_Depth) when applied to individual
protected entries.
gcc/ada/
* exp_ch9.adb (Expand_N_Protected_Type_Declaration): Clarify
comments.
* sem_prag.adb (Analyze_Pragma): Check for duplicates
Max_Entry_Queue_Length, Max_Entry_Queue_Depth and Max_Queue_Length
for the same protected entry.
* sem_util.adb (Get_Max_Queue_Length): Take into account all three
representation aspects that can be used to set this restriction.
(Has_Max_Queue_Length): Likewise.
* doc/gnat_rm/implementation_defined_pragmas.rst:
(pragma Max_Queue_Length): Fix pragma in example.
* gnat_rm.texi: Regenerate.
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The documentation was originally centered around pragma No_Strict_Aliasing
and pragma Universal_Aliasing was mentioned only as an afterthought. It
also contained a warning about the usage of overlays implemented by means
of address clauses that has been obsolete for long.
gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst
(Universal_Aliasing): Remove reference to No_Strict_Aliasing.
* doc/gnat_ugn/gnat_and_program_execution.rst
(Optimization and Strict Aliasinng): Simplify first example and
make it more consistent with the second. Add description of the
effects of pragma Universal_Aliasing and document new warning
issued for unchecked conversions. Remove obsolete stuff.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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gcc/ada/
* doc/gnat_rm/implementation_defined_attributes.rst: Fix
copy/paste.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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This patch implements (under -gnatX0) the 'Super attribute which can be
applied to tagged objects in order to get a view conversion to their
immediate parent.
gcc/ada/
* doc/gnat_rm/implementation_defined_attributes.rst: Add entry for
Super attribute.
* accessibility.adb (Accessibility_Level): Add handling for Super.
* exp_attr.adb (Expand_N_Attribute_Reference): Add entry for
Super.
* sem_attr.adb (Analyze_Attribute): Create a case to handle the
semantic checking and expansion for Super.
(Eval_Attribute): Add entry for Super.
* sem_attr.ads: Add entry for Super.
* sem_util.adb (Is_Aliased_View, Is_Variable): Add case to handle
references to 'Super.
* snames.ads-tmpl: Register Name_Super and Attribute_Super.
* gnat_rm.texi: Regenerate.
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Fix various inconsistencies in documentation and comments of
Boolean-valued aspects.
gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst: Fix
documentation.
* sem_prag.adb: Fix comments.
* gnat_rm.texi: Regenerate.
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The VxWorks 7 API to use hardware interrupts is the VxBus subsystem.
GNAT API still provides bindings for the deprecated (VxWorks 6) routines.
A direct consequence of this change is that Attach_Handler cannot be
used anymore (the VxBus subsystem should be used instead).
This patch removes all the functions that are not supported by VxWorks 7
anymore.
To warn for the usage of Attach_Handler, it adds the 'Obsolescent'
pragma to to this routine so the comiler will advise the user if this
function is called directly or through a pragma.
gcc/ada/
* Makefile.rtl: remove i-vxinco.* from the build
* doc/gnat_rm/the_gnat_library.rst: Remove i-vxinco.ads from
the units documentation.
* impunit.adb: Remove i-vxinco from the list of available units
in GNATstudio.
* libgnarl/i-vxinco.adb: Remove.
* libgnarl/i-vxinco.ads: Ditto.
* libgnarl/s-interr__vxworks.adb: enrich comment
* libgnarl/s-vxwext__kernel.ads: fix comment
* libgnat/i-vxwork.ads: Remove deprecated interrupt connections
API, as well as an example.
* libgnat/i-vxwork__x86.ads: Ditto and add the paragma
Obscolescent to Attach_Handler
* gnat_rm.texi: Regenerate.
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Move case statement pattern matching out of the curated language extension
set and into the extended set.
gcc/ada/
* sem_case.adb: Replace all tests of Core_Extensions_Allowed with
corresponding tests of All_Extensions_Allowed.
* sem_ch5.adb: Likewise.
* doc/gnat_rm/gnat_language_extensions.rst: update documentation.
* gnat_rm.texi: Regenerate.
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The attribute is only defined by the language for decimal fixed point
types (RM 3.5.10(12)) but it could be useful to have it for ordinary
fixed point types too because conversions from floating point truncate
in both cases.
gcc/ada/
* sem_attr.adb (Analyze_Attribute) <Attribute_Round>: Also accept it
for ordinary fixed point types.
* doc/gnat_rm/implementation_defined_attributes.rst (Round): New.
* gnat_rm.texi: Regenerate.
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Add minimal description for pragma and aspect Exceptional_Cases, based
on a similarly minimal descriptions for other SPARK contracts.
gcc/ada/
* doc/gnat_rm/implementation_defined_aspects.rst
(Exceptional_Cases): Add description for aspect.
* doc/gnat_rm/implementation_defined_pragmas.rst
(Exceptional_Cases): Add description for pragma.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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Add description of a recently added SPARK contract.
gcc/ada/
* doc/gnat_rm/implementation_defined_aspects.rst,
doc/gnat_rm/implementation_defined_pragmas.rst: Add sections for
Always_Terminates.
* gnat-style.texi: Regenerate.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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When pragma Ignore_Pragma(SPARK_Mode) is used, do not issue error
messages related to SPARK legality checking. This facilitates the
instrumentation of code by GNATcoverage.
gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst: Fix doc for
pragma Ignore_Pragma, in the case where it follows another
configuration pragma that it names, which causes the preceding
pragma to be ignored after parsing.
* errout.adb (Should_Ignore_Pragma_SPARK_Mode): New query.
(SPARK_Msg_N): Do nothing if SPARK_Mode is ignored.
(SPARK_Msg_NE): Same.
* gnat-style.texi: Regenerate.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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gcc/ada/
* doc/gnat_rm/the_implementation_of_standard_i_o.rst: Fix a couple
occurrences of incorrect quoting.
* gnat_rm.texi: Regenerate.
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The index directive must be located before the indexed element, at least
for the generated texinfo to be correct. See:
https://www.sphinx-doc.org/en/master/usage/restructuredtext/directives.html#directive-index
This was reported along with changes done in https://inbox.sourceware.org/gcc-patches/20230223102714.3606058-3-arsen@aarsen.me/
gcc/ada/
* doc/gnat_ugn/the_gnat_compilation_model.rst: Move index
directives.
* gnat_ugn.texi: Regenerate.
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Update the logo and the background color in the top right corner of the
GNAT User’s Guide for Native Platforms
gcc/ada/
* doc/share/conf.py: Changed the background color and the logo.
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-gnatwc has been correctly emitting warnings for expressions outside
of tests for a while, but its documentation in the user's guide had
never been updated to reflect that. Also, the documentation used
"conditional expressions" to designate boolean expressions, but
"conditional expressions" has been defined by Ada 2012 to designate
if expressions and case expressions. This patch fixes those issues.
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Fix
-gnatwc documentation.
* gnat_ugn.texi: Regenerate.
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A GNAT-defined aspect, Local_Restrictions, is defined.
This provides a way of enforcing a given restriction for an individual
subprogram (and its call-closure) without requiring that the entire
program satisfy the restriction.
A GNAT-defined aspect, User_Aspect, is defined.
This (along with the new User_Aspect_Definition configuration pragma) provides
a way of naming a set of aspect specifications which can then be applied
to multiple declarations without textual repetition of the set.
gcc/ada/
* local_restrict.ads: A new package. Declares Local_Restriction
enumeration type and provides operations to check for local
restriction violations.
* local_restrict.adb: Corresponding package body. Replace "not
Present (X)" calls with "No (X)" calls.
* aspects.ads: Add a new enumeration elements,
Aspect_Local_Restrictions and Aspect_User_Aspect, to the Aspect_Id
enumeration type. Update Aspect_Id-indexed aggregates. Add nested
package User_Aspect_Support to manage two pieces of state. One is
a map from identifiers to User_Aspect_Definition pragmas (updated
when such a pragma is encountered). The other is an
access-to-subprogram variable that is introduced in order to keep
the bulk of semantics out of the closure of package Aspects while
allowing a call from aspects.adb to the sem_ch13 procedure that
analyzes a User_Aspect aspect specification.
* aspects.adb (Find_Aspect): Cope with a case of a block statement
with an empty parent. It is not clear whether this is papering
over a compiler bug. Add indirect call through the aforementioned
access-to-subprogram variable when Find_Aspect enounters an
unanalyzed User_Aspect aspect specification. If Find_Aspect is
called looking for aspect Foo, then a User_Aspect specification
might generate (during analysis) a Foo aspect specification. So
the Find_Aspect call needs to trigger that analysis if it has not
already taken place. Provide a body for package
User_Aspect_Support. Replace "not Present (X)" call with "No (X)"
call.
* freeze.adb (Freeze_Subprogram): Check local restriction
compatibility when a dispatching operation is overridden.
* par-prag.adb: Add support for parsing a User_Aspect_Definition
pragma.
* restrict.ads: We'd like to have the body of package Restrict
include a call to a procedure declared in package Local_Restrict.
Doing that in the obvious way pulls most of semantics into the
closure of package Restrict, and that turns out to cause problems.
So we introduce a level of indirection and instead call through an
access-to-subprogram value. In this unit, we declare the
access-to-subprogram type and object.
* restrict.adb (Check Restriction): When a construct is
encountered that could violate a global restriction (depending on
whether the given restriction is in effect), Check_Restriction is
called. At this point, we also check for a violation of any
corresponding local restriction that is in effect. For reasons
described above, this check is performed via an indirect call.
* sem_ch13.ads (Parse_Aspect_Local_Restrictions): A new function,
similar to the existing Parse_Aspect_Xxx subprograms.
* sem_ch13.adb: Perform semantic analysis of Local_Restrictions
and User_Aspect aspect specifications. Declare and call new
Validate_Aspect_Local_Restrictions and
Analyze_User_Aspect_Aspect_Specification procedures (a reference
to the latter is registered during package elaboration). In
Analyze_Aspect_Specifications, do not set the Analyzed flag of a
User_Aspect aspect specification. Replace "not Present (X)" call
with "No (X)" call. Replace 'Image with 'Img in a case where the
prefix of the attribute reference is an object; this is done to
accomodate older compilers.
* sem_ch6.adb (Check_Subtype_Conformant): Include in subtype
conformance check a check for overriding-related compatibility of
local restrictions.
* sem_ch8.adb (Analyze_Subprogram_Renaming): In the case of an
instance of a generic that takes a formal subprogram, check that
formal and actual are compatible with respect to local
restrictions.
* sem_prag.adb: Add support for User_Aspect_Definition pragma.
* sem_res.adb (Resolve_Call): Check caller/callee compatibility
with respect to local restrictions.
* snames.ads-tmpl: Add Name_Local_Restrictions, Name_User_Aspect,
and Name_User_Aspect_Definition constants.
* doc/gnat_rm/implementation_defined_aspects.rst: Document new
aspects.
* doc/gnat_rm/implementation_defined_pragmas.rst: Document new
pragma.
* doc/gnat_ugn/the_gnat_compilation_model.rst: Add
User_Aspect_Definition to list of GNAT pragmas.
* gcc-interface/Make-lang.in: Add local_restrict.o.
* gnat-style.texi: Regenerate.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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SPARK RM 6.1.11 introduces a new aspect Side_Effects to denote
those functions which may have output parameters, write global
variables, raise exceptions and not terminate. This adds support
for this aspect and the corresponding pragma in the frontend.
Handling of this aspect in the frontend is very similar to
the handling of aspect Extensions_Visible: both are Boolean
aspects whose expression should be static, they can be specified
on the same entities, with the same rule of inheritance from
overridden to overriding primitives for tagged types.
There is no impact on code generation.
gcc/ada/
* aspects.ads: Add aspect Side_Effects.
* contracts.adb (Add_Pre_Post_Condition)
(Inherit_Subprogram_Contract): Add support for new contract.
* contracts.ads: Update comments.
* einfo-utils.adb (Get_Pragma): Add support.
* einfo-utils.ads (Prag): Update comment.
* errout.ads: Add explain codes.
* par-prag.adb (Prag): Add support.
* sem_ch13.adb (Analyze_Aspect_Specifications)
(Check_Aspect_At_Freeze_Point): Add support.
* sem_ch6.adb (Analyze_Subprogram_Body_Helper)
(Analyze_Subprogram_Declaration): Call new analysis procedure to
check SPARK legality rules.
(Analyze_SPARK_Subprogram_Specification): New procedure to check
SPARK legality rules. Use an explain code for the error.
(Analyze_Subprogram_Specification): Move checks to new subprogram.
This code was effectively dead, as the kind for parameters was set
to E_Void at this point to detect early references.
* sem_ch6.ads (Analyze_Subprogram_Specification): Add new
procedure.
* sem_prag.adb (Analyze_Depends_In_Decl_Part)
(Analyze_Global_In_Decl_Part): Adapt legality check to apply only
to functions without side-effects.
(Analyze_If_Present): Extract functionality in new procedure
Analyze_If_Present_Internal.
(Analyze_If_Present_Internal): New procedure to analyze given
pragma kind.
(Analyze_Pragmas_If_Present): New procedure to analyze given
pragma kind associated with a declaration.
(Analyze_Pragma): Adapt support for Always_Terminates and
Exceptional_Cases. Add support for Side_Effects. Make sure to call
Analyze_If_Present to ensure pragma Side_Effects is analyzed prior
to analyzing pragmas Global and Depends. Use explain codes for the
errors.
* sem_prag.ads (Analyze_Pragmas_If_Present): Add new procedure.
* sem_util.adb (Is_Function_With_Side_Effects): New query function
to determine if a function is a function with side-effects.
* sem_util.ads (Is_Function_With_Side_Effects): Same.
* snames.ads-tmpl: Declare new names for pragma and aspect.
* doc/gnat_rm/implementation_defined_aspects.rst: Document new aspect.
* doc/gnat_rm/implementation_defined_pragmas.rst: Document new pragma.
* gnat_rm.texi: Regenerate.
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Add documentation for the -Q gnatbind switch in GNAT User's Guide and
improve gnatbind's help output for the switch to emphasize that it adds the
requested number of stacks to the secondary stack pool generated by the
binder.
gcc/ada/
* bindusg.adb (Display): Make it clear -Q adds to the number of
secondary stacks generated by the binder.
* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
Document the -Q gnatbind switch and fix references to old
runtimes.
* gnat-style.texi: Regenerate.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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gcc/ada/
* doc/gnat_ugn/gnat_and_program_execution.rst: Add more details on
using Generic Elementary Functions with dimensional analysis.
* gnat_ugn.texi: Regenerate.
|
|
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Remove
extended discussion regarding mold run-time dependencies;
packaging changes in GNAT Pro have made them obsolete.
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The index for this paragraph was wrong.
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Fix
index.
* gnat_ugn.texi: Regenerate.
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Mark exception-raising subprograms with expected_throw attribute.
Document the use of the attribute in Control Flow Redundancy.
Enable marking subprograms as expected_throw with Machine_Attribute
pragmas.
gcc/ada/
* libgnat/a-except.ads (Raise_Exception): Mark expected_throw.
(Reraise_Occurrence): Likewise.
(Raise_Exception_Always): Likewise.
(Raise_From_Controlled_Operation): Likewise.
(Reraise_Occurrence_Always): Likewise.
(Reraise_Occurrence_No_Defer): Likewise.
* libgnat/a-except.adb
(Exception_Propagation.Propagate_Exception): Likewise.
(Complete_And_Propagate_Occurrence): Likewise.
(Raise_Exception_No_Defer): Likewise.
(Raise_From_Signal_Handler): Likewise.
(Raise_With_Msg): Likewise.
(Raise_With_Location_And_Msg): Likewise.
(Raise_Constraint_Error): Likewise.
(Raise_Constraint_Error_Msg): Likewise.
(Raise_Program_Error): Likewise.
(Raise_Program_Error_Msg): Likewise.
(Raise_Storage_Error): Likewise.
(Raise_Storage_Error_Msg): Likewise.
(Reraise, Rcheck_*): Likewise.
* doc/gnat_rm/security_hardening_features.rst (Control Flow
Hardening): Note the influence of expected_throw.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
* gcc-interface/utils.cc (handle_expected_throw_attribute): New.
(gnat_internal_attribute_table): Add expected_throw.
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This patch documents the new feature that allows declarations mixed with
statements, primarily by referring to the RFC.
gcc/ada/
* doc/gnat_rm/gnat_language_extensions.rst
(Local Declarations Without Block): Document the feature very
briefly, and refer the reader to the RFC for details and examples.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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|
Document -fhardcfr-skip-leaf.
gcc/ada/
* doc/gnat_rm/security_hardening_features.rst (Control Flow
Hardening): Document -fhardcfr-skip-leaf.
* gnat_rm.texi: Regenerate.
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Adjust documentation to reflect the introduction of
-fhardcfr-check-noreturn-calls=no-xthrow.
gcc/ada/
* doc/gnat_rm/security_hardening_features.rst (Control Flow
Redundancy): Add -fhardcfr-check-noreturn-calls=no-xthrow.
* gnat_rm.texi: Regenerate.
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Document leafy mode.
gcc/ada/
* doc/gnat_rm/security_hardening_features.rst (Register
Scrubbing): Document leafy mode.
* gnat_rm.texi: Regenerate.
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|
The limitation of resetting the FPU mode for non 80-bit
precision was not referenced from "Creating a Stand-alone
Library to be used in a non-Ada context". Reference it the same
way it is already referenced from "Interfacing to C".
gcc/ada/
* doc/gnat_ugn/the_gnat_compilation_model.rst: Reference "Binding
with Non-Ada Main Programs" from "Creating a Stand-alone Library
to be used in a non-Ada context".
* gnat_ugn.texi: Regenerate.
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|
gcc/ada/
* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
add No_Use_Of_Attribute & No_Use_Of_Pragma restrictions.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
|
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There is still a mention of the defunct CHECKED mode and the Default
Settings paragraph is confusing with regard to the -gnato switch.
gcc/ada/
* doc/gnat_ugn/gnat_and_program_execution.rst (Overflows in GNAT)
<Default Settings>: Remove obsolete paragraph about -gnato.
<Implementation Notes>: Replace CHECKED with STRICT.
* gnat_ugn.texi: Regenerate.
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