2007-04-20 Javier Miranda <miranda@adacore.com>
Hristian Kirtchev <kirtchev@adacore.com>
Ed Schonberg <schonberg@adacore.com>
* sem_ch3.adb (Process_Full_View): Propagate the CPP_Class attribute to
the full type declaration.
(Analyze_Component_Declaration): Add local variable E to capture the
initialization expression of the declaration. Replace the occurences of
Expression (N) with E.
(OK_For_Limited_Init_In_05): Allow initialization of class-wide
limited interface object with a function call.
(Array_Type_Declaration): If the declaration lacks subtype marks for
indices, create a simple index list to prevent cascaded errors.
(Is_Null_Extension): Ignore internal components created for secondary
tags when checking whether a record extension is a null extension.
(Check_Abstract_Interfaces): Add missing support for interface subtypes
and generic formals.
(Derived_Type_Declaration): Add missing support for interface subtypes
and generic formals.
(Analyze_Object_Declaration): If an initialization expression is
present, traverse its subtree and mark all allocators as static
coextensions.
(Add_Interface_Tag_Component): When looking for components that may be
secondary tags, ignore pragmas that can appear within a record
declaration.
(Check_Abstract_Overriding): an inherited function that dispatches on
result does not need to be overriden if the controlling type is a null
extension.
(Mentions_T): Handle properly a 'class attribute in an anonymous access
component declaration, when the prefix is an expanded name.
(Inherit_Component): If the derivation is for a private extension,
inherited components remain visible and their ekind should not be set
to Void.
(Find_Type_Of_Object): In the case of an access definition, always set
Is_Local_Anonymous_Access. We were previously not marking the anonymous
access type of a return object as a local anonymous type.
(Make_Index): Use Ambiguous_Character to report ambiguity on a discrete
range with character literal bounds.
(Constrain_Array): Initialize the Packed_Array_Type field to Empty.
(Access_Subprogram_Declaration): Indicate that the type declaration
depends on an incomplete type only if the incomplete type is declared
in an open scope.
(Analyze_Subtype_Declaration): Handle properly subtypes of
synchronized types that are tagged, and that may appear as generic
actuals.
(Access_Subprogram_Declaration): An anonymous access to subprogram can
appear as an access discriminant in a private type declaration.
(Add_Interface_Tag_Components): Complete decoration of the component
containing the tag of a secondary dispatch table and the component
containing the offset to the base of the object (this latter component
is only generated when the parent type has discriminants --as documented
in this routine).
(Inherit_Components): Use the new decoration of the tag components to
improve the condition that avoids inheriting the components associated
with secondary tags of the parent.
(Build_Discriminanted_Subtype): Indicate to the backend that the
size of record types associated with dispatch tables is known at
compile time.
(Analyze_Subtype_Declaration): Propagate Is_Interface flag when needed.
(Analyze_Interface_Declaration): Change setting of Is_Limited_Interface
to include task, protected, and synchronized interfaces as limited
interfaces.
(Process_Discriminants): Remove the setting of
Is_Local_Anonymous_Access on the type of (anonymous) access
discriminants of nonlimited types.
(Analyze_Interface_Type_Declaration): Complete the decoration of the
class-wide entity it is is already present. This situation occurs if
the limited-view has been previously built.
(Enumeration_Type_Declaration): Initialize properly the Enum_Pos_To_Rep
field.
(Add_Interface_Tag_Components.Add_Tag): Set the value of the attribute
Related_Interface.
From-SVN: r125437
2007-04-20 Vincent Celier <celier@adacore.com>
* osinte-c.ads, osint-c.adb (Set_Library_Info_Name): Fail if base name
of specified object file is not equal to base name of source.
From-SVN: r125436
2007-04-20 Vincent Celier <celier@adacore.com>
* mlib.ads, mlib.adb (Build_Library): Do not use hard-coded directory
separator, use instead the proper host directory separator.
(Copy_ALI_Files): Make sure that an already existing ALI file in the
ALI copy dir is writable, before doing the copy.
* mlib-utl.ads, mlib-utl.adb:
(Gcc): If length of command line is too long, put the list of object
files in a response file, if this is supported by the platform.
(Ar): If invocation of the archive builder is allowed to be done in
chunks and building it in one shot would go above an OS dependent
limit on the number of characters on the command line, build the archive
in chunks.
From-SVN: r125435
2007-04-20 Jose Ruiz <ruiz@adacore.com>
Arnaud Charlet <charlet@adacore.com>
* Makefile.in (LIBGNAT_TARGET_PAIRS for VxWorks 6): For the RTP run
time, use the default s-interr body that provides interrupt support
based on signals.
(LIBGNAT_TARGET_PAIRS for x86-linux): Use specialized versions of
a-exetim.ad{s,b}, a-extiti.ad{s,b}, a-rttiev.ad{s,b}, s-osinte.ad{s,b},
g-soccon.ads, and s-taprop.adb for the marte run time.
(EXTRA_GNATRTL_TASKING_OBJS for x86-linux): Execution time clocks and
timers are supported on marte.
(EH_MECHANISM for marte): Do not use ZCX.
(THREADSLIB for marte): Use -lmarte.
Add mlib-tgt-vms.o to the list of objects for gnatmake for VMS
Add mlib-tgt-specific.o to gnatmake objects
mlib-tgt-<platforms>.adb is now the body of MLib.Tgt.Specific, no
longer of MLib.Tgt.
(LIBGNAT_TARGET_PAIRS for vxworks): When building a run time for VxWorks
6, either kernel or rtp, use a specialized version of s-osinte.ads.
From-SVN: r125433
2007-04-20 Arnaud Charlet <charlet@adacore.com>
Vincent Celier <celier@adacore.com>
* lib-writ.adb: Handle Convention_CIL in addition to Convention_Java,
since both are separated.
Add support for imported CIL packages.
Add further special handling of "value_type" for CIL.
Add special handling of pragma Import for CIL.
* make.ads, make.adb: When switch -eS is used, direct all outputs to
standard output instead of standard error, except errors.
(Absolute_Path): Use untouched casing for the parent directory.
(Add_Library_Search_Dir): Use the untouched directory name.
(Add_Source_Search_Dir): Idem.
(Change_To_Object_Directory): Update output to use proper casing.
(Create_Binder_Mapping_File): Use the untouched filename to set
ALI_Name.
(Gnatmake): Use untouched library and executable directory names.
(Insert_Project_Sources): Use untouched filename for spec and body.
(Is_In_Object_Directory): Use untouched object directory.
(Mark_Directory): Idem.
(Collect_Arguments_And_Compile): Ensure that Full_Source_File always
contains the non-canonical filename in all cases.
(Change_To_Object_Directory): In verbose mode, display the name of the
object directory we're changing to.
(Compile_Sources): Make sure, when a project file is used, to compile
the body of the unit, when there is one, even when only the spec is
recorded in an ALI file.
(Gcc_Switches, Binder_Switches, Linker_Switches): Tables moved from the
spec to the body.
(Report_Compilation_Failed): New procedure
(Bind, Display_Commands, Compile_Sources, Initialize, Scan_Make_Arg):
procedures moved from the spec to the body.
(Extract_Failure): Removed, not used
Replace explicit raises of exception Bind_Failed and Link_Failed with
calls to Make_Failed with the proper message.
Replace explicit raises of exception Compilation_Failed with calls to
procedure Report_Compilation_Failed.
(Initialize): Create mapping files unconditionally when using project
files.
* sem_mech.adb: (Name_CIL, Name_CIL_Constructor, Convention_CIL,
Pragma_CIL_Constructor): New names.
* targparm.ads, targparm.adb
(Compiler_System_Version): Removed, no longer used.
(Get_Target_Parameters): Relax checks on system.ads validity. Add
handling of two new system flags: JVM and CLI.
From-SVN: r125432
2007-04-20 Ed Schonberg <schonberg@adacore.com>
Javier Miranda <miranda@adacore.com>
* sem_ch12.adb (Analyze_Associations): Diagnose use of an others
association in an instance.
(Copy_Generic_Node): If the node is a string literal, no need to copy
its descendants.
(Is_Generic_Formal): For a formal subprogram, the declaration is the
grandparent of the entity.
(Analyze_Formal_Interface_Type): Transform into a full type declaration,
to simplify handling of formal interfaces that derive from other formal
interfaces.
(Instantiate_Subprogram_Body): The defining unit name of the body of
the instance should be a defining identifier.
(Install_Formal_Packages): make global to the package, for use in
instantiations of child units.
(Analyze_Package_Instantiation): Do not attempt to set information on an
enclosing master of an entry when expansion is disabled.
(Instantiate_Type): If the actual is a tagged synchronized type and the
generic ancestor is an interface, create a generic actual for the
corresponding record.
(Analyze_Formal_Derived_Interface_Type): Rewrite as a derived type
declaration, to ensure that the interface list is processed correctly.
(Inline_Instance_Body): If enclosing scope is an instance body, remove
its entities from visibiility as well.
(Pre_Analyze_Actuals): if the actual is an allocator with constraints
given with a named association, analyze the expression only, not the
discriminant association itself.
(Reset_Entity): If the analysis of a selected component is transformed
into an expanded name in the prefix of a call with parameters, do not
transform the original node into an expanded name, to prevent visibility
errors in the case of nested generics.
(Check_Private_View): For an array type, check whether the index types
may need exchanging.
From-SVN: r125431
2007-04-20 Robert Dewar <dewar@adacore.com>
* layout.ads, layout.adb (Adjust_Esize_Alignment): Move spec to package
spec from body
(Layout_Type): Fix recomputation of size from alignment.
From-SVN: r125430
2007-04-20 Olivier Hainque <hainque@adacore.com>
* initialize.c (__gnat_initialize for vxworks): Update documentation
on the ZCX support, using different sets of crtstuff objects than with
GCC 3.4.
From-SVN: r125429
2007-04-20 Tristan Gingold <gingold@adacore.com>
Olivier Hainque <hainque@adacore.com>
* init.c: Do not adjust IP of an imported VMS exception of ia64.
LIB$STOP is called to raise an exception and the IP of the exception
is the instruction right after the call.
(__gnat_adjust_context_for_raise, AIX): Implement.
(__gnat_error_handler, AIX): Accept SIGINFO related arguments and call
adjust_context_for_raise before Raise_From_Signal_Hanler.
(__gnat_install_handler, AIX): Add SA_SIGINFO to the sa_flags, to ensure
siginfo is passed to the handler, necessary to let the zcx propagation
engine unwind past it.
From-SVN: r125428
2007-04-20 Vincent Celier <celier@adacore.com>
Arnaud Charlet <charlet@adacore.com>
* a-clrefi.adb, a-clrefi.ads: New files
* impunit.adb: Add s-os_lib in the list of user visible units.
(Non_Imp_File_Names_95): Add a-clrefi to this list
Remove obsolete run-time entries.
(Non_Imp_File_Names_05): Add Ada 2005 entries for:
"a-exetim" -- Ada.Execution_Time
"a-extiti" -- Ada.Execution_Time.Timers
* mlib-prj.ads, mlib-prj.adb
(Build_Library): Use untouched object dir and library dir. At the
same time makes sure that the checks are done using the canonical
form. Removes hard-coded directory separator and use the proper host
one instead.
(Process_Project): Do not look in object directory to check if libgnarl
is needed for a library, if there is no object directory.
(Build_Library): Scan the ALI files to decide if libgnarl is needed for
linking.
(Build_Library): When invoking gnatbind, use a response file if the
total size of the arguments is too large.
* Makefile.rtl: (g-sttsne): New object file.
Add entry for a-clrefi, s-utf_32, System.Exceptions
* Make-lang.in: Remove bogus dependency of s-memory.o on memtrack.o.
(GNAT_ADA_OBJS, GNATBIND_OBJS): Add s-except.o.
(GNATBIND_OBJS): Add new objects a-clrefi.o and a-comlin.o
Change g-string to s-string, g-os_lib to s-os_lib
Change all g-utf_32 references to s-utf_32
From-SVN: r125427
2007-04-20 Pascal Obry <obry@adacore.com>
* hostparm.ads (Normalized_CWD): Use the host directory separator
instead of the hardcoded forward slash which is not the proper
character on Windows for example.
(Java_VM): Removed.
From-SVN: r125426
2007-04-20 Robert Dewar <dewar@adacore.com>
* g-trasym.ads, g-traceb.ads: Update list of supported targets
Add note about symbolic traceback
From-SVN: r125425
2007-04-20 Thomas Quinot <quinot@adacore.com>
* g-soccon.ads: Add new constant Thread_Blocking_IO, always True by
default, set False on a per-runtime basis.
(Need_Netdb_Buffer): New constant.
* g-socket.ads, g-socket.adb: Import new package
GNAT.Sockets.Thin.Task_Safe_NetDB.
(Raise_Host_Error): Use Host_Error_Message from platform-specific thin
binding to obtain proper message.
(Close_Selector): Use GNAT.Sockets.Thin.Signalling_Fds.Close.
Replace various occurrences of Arry (Arry'First)'Address with the
equivalent Arry'Address (GNAT always follows implementation advice from
13.3(14)).
(Get_Host_By_Address, Get_Host_By_Name,
Get_Service_By_Name, Get_Service_By_Port): Do not use GNAT.Task_Lock;
instead, rely on platform-specific task safe netdb operations provided
by g-socthi.
* g-socthi.ads, g-socthi.adb (Initialize): Remove obsolete formal
parameter Process_Blocking_IO.
(Host_Error_Messages): Add stub body.
(GNAT.Sockets.Thin.Signalling_Fds): New procedure Close.
(Safe_Gethostbyname, Safe_Gethostbyaddr, Safe_Getservbyname,
Safe_Getservbyport): Move functions into new child package
Task_Safe_NetDB.
(Nonreentrant_Gethostbyname, Nonreentrant_Gethostbyaddr,
Nonreentrant_Getservbyname, Nonreentrant_Getservbyport): New routines.
(In_Addr): Add alignment clause.
From-SVN: r125424
2007-04-20 Thomas Quinot <quinot@adacore.com>
* g-pehage.adb (Produce): Open output files in Binary mode, so that
they have UNIX line endings (LF only) even on Windows, and thus pass
all GNAT style checks.
From-SVN: r125422
2007-04-20 Vincent Celier <celier@adacore.com>
* gnatsym.adb: Update Copyright notice
(Parse_Cmd_Line): Accept new switch -D
(Gnatsym): In Direct policy (switch -D) copy reference file to symbol
file.
* prj.ads (Policy): New policy Direct
(Yes_No_Unknown): New enumeration type
(Project_Data): New component Libgnarl_Needed
* prj-nmsc.adb (Check_For_Source): When recording a source file make
use the untouched pathname casing.
(Get_Directories): Ensure that the Display_Exec_Directory is using the
proper casing on non case-sensitive platforms like Windows.
(Get_Unit): Accept file names x__... and x~... (where x = a, g, i or s)
on all platforms, as it is not possible to know which one is allowed
before processing the project files.
(Check_Stand_Alone_Library): Check that Library_Reference_Symbol_File is
specified when symbol policy is Direct. Check that when there is a
symbol file defined (either by default or with attribute
Library_Symbol_File) it is not the same as the reference symbol file.
(Check_Stand_Alone_Library): Recognize new symbol policy Direct.
(Look_For_Sources): Allow Locally_Removed_Files to be declare in non
extending projects.
(Record_Ada_Source): Record a source that has been locally removed in an
imported project.
* symbols.ads (Policy): New policy Direct
* symbols-vms.adb (Initialize): Take new policy Direct in case
statement
From-SVN: r125420
2007-04-20 Vasiliy Fofanov <fofanov@adacore.com>
* gmem.c: Add support for timestamps on memory operations.
* memtrack.adb, gnatmem.adb: Add support for timestamps on memory
operations (not used currently, just foundation for future
enhancements). Add possibility to perform full dump of gmem.out file.
(Print_Back_Traces): Declare accesses to root arrays constants since
they aren't modified.
(Print_Back_Traces): allocate root arrays on the heap rather than stack.
From-SVN: r125419
2007-04-20 Vincent Celier <celier@adacore.com>
* gnatls.adb:
Add 3 spaces before the default project directory when displaying
the project search path.
Add new command line switch '-l' to display license information.
From-SVN: r125418
2007-04-20 Vincent Celier <celier@adacore.com>
* gnatlink.adb (Gnatlink): Do not specify -static-libgcc when --LINK=
has been specified
Correct error message when invocation of the linker fails
Add explicit size clause for the C imported variables
Object_List_File_Supported and Using_GNU_Linker to emphasize that
we expect char size.
Read target parameters earlier, since this is needed to set
Target_VM properly. Also do not use -static/shared-libgcc for non GCC
targets.
From-SVN: r125417
2007-04-20 Vincent Celier <celier@adacore.com>
* gnatcmd.adb (GNATCmd): Accept switch -aP for commands that accept
switch -P
(ASIS_Main): New global variable
(Get_Closure): New procedure
(GNATCmd): Set ASIS_Main when -P and -U with a main is used for gnat
check, metric or pretty. Call Get_Closure in this case.
(Check_Files): For GNAT LIST, check all sources of all projects when
All_Projects is True.
(GNATCmd): Accept -U for GNAT LIST
From-SVN: r125416
2007-04-20 Vincent Celier <celier@adacore.com>
Emmanuel Briot <briot@adacore.com>
Olivier Hainque <hainque@adacore.com>
* g-debpoo.ads, g-debpoo.adb (Free_Physically.Free_Blocks): Use the
absolute value of Header.Block_Size when displaying the freed physical
memory in traces.
(Allocate): Compute Storage_Address using Integer_Address, not
Storage_Offset, because the range of Storage_Offset may not be large
enough.
(Configure): New parameter Low_Level_Traces
(Allocate, Deallocation, Free_Physically): Added low-level traces
(Configure): new parameter Errors_To_Stdout.
(Output_File): new subprogram
(Deallocate, Dereference): Send error messages to the proper stream
(Print_Pool, Print_Info_Stdout): Make sure the output goes to stdout, as
documented. Previous code would send it to the current output file
defined in GNAT.IO, which might not be stdout
(Is_Valid): Adjust comment to mention that a positive reply means that
Header_Of may be used to retrieve the allocation header associated with
the subprogram Storage address argument. Return False early if this
address argument is misaligned.
From-SVN: r125415
2007-04-20 Robert Dewar <dewar@adacore.com>
Ed Schonberg <schonberg@adacore.com>
* g-comlin.ads, g-comlin.adb:
Add new warning for renaming of function return objects
* opt.adb (Tree_Write, Tree_Read): Use proper expressions for size
(Tree_Read): Use size of object instead of type'object_size, since the
latter is incorrect for packed array types.
(Tree_Write): Same fix
* opt.ads: Add new warning for renaming of function return objects
(Generating_Code): New boolean variable used to indicate that the
frontend as finished its work and has called the backend to process
the tree and generate the object file.
(GCC_Version): Is now private
(Static_Dispatch_Tables): New constant declaration.
(Overflow_Checks_Unsuppressed): New flag.
(Process_Suppress_Unsuppress): Set Overflow_Checks_Unsuppressed.
(List_Closure): New flag for gnatbind (-R)
Zero_Formatting: New flag for gnatbind (-Z)
(Special_Exception_Package_Used): New flag.
(Warn_On_Unrepped_Components): New flag.
* sem_ch8.adb (Check_Library_Unit_Renaming): Check that the renamed
unit is a compilation unit, rather than relying on its scope, so that
Standard can be renamed.
(Analyze_Object_Renaming): Add new warning for renaming of function
return objects.
Also reject attempt to rename function return object in Ada 83 mode.
(Attribute_Renaming): In case of tagged types, add the body of the
generated function to the freezing actions of the type.
(Find_Type): A protected type is visible right after the reserved word
"is" is encountered in its type declaration. Set the entity and type
rather than emitting an error message.
(New_Scope): Properly propagate Discard_Names to inner scopes
(Check_Nested_Access): New procedure.
(Has_Nested_Access, Set_Has_Nested_Access): New procedures.
(Find_Direct_Name, Note_Possible_Modification): Use Check_Nested_Access.
* sem_warn.ads, sem_warn.adb: Improvements to infinite loop warning
Add new warning for renaming of function return objects
(Check_References): Suppress warnings for objects whose type or
base type has Warnings suppressed.
(Set_Dot_Warning_Switch): Add processing for -gnatw.c/C
(Set_Warning_Switch): Include new -gnatwc in -gnatwa
From-SVN: r125414
2007-04-20 Robert Dewar <dewar@adacore.com>
* g-hesorg.ads, g-heasor.ads,
g-busorg.ads, g-bubsor.ads: Update documentation
GNAT.Heap/Bubble_Sort_G is now pure
From-SVN: r125412
2007-04-20 Vincent Celier <celier@adacore.com>
Robert Dewar <dewar@adacore.com>
* frontend.adb (Frontend): Return immediately if the main source could
not be parsed, because of preprocessing errors.
* gnat1drv.adb (gnat1drv): Handle RE_Not_Available gracefully.
(Gnat1drv): Exit with errors if the main source could not be parsed,
because of preprocessing errors.
(Check_Rep_Info): New procedure
From-SVN: r125411
2007-04-20 Ed Schonberg <schonberg@adacore.com>
* exp_util.ads, exp_util.adb (Expand_Subtype_From_Expr): In Ada2005, an
object of a limited type can be initialized with a call to a function
that returns in place. If the limited type has unknown discriminants,
and the underlying type is a constrained composite type, build an actual
subtype from the function call, as is done for private types.
(Side_Effect_Free): An expression that is the renaming of an object or
whose prefix is the renaming of a object, is not side-effect free
because it may be assigned through the renaming and its value must be
captured in a temporary.
(Has_Controlled_Coextensions): New routine.
(Expand_Subtype_From_Expr): Do nothing if type is a limited interface,
as is done for other limited types.
(Non_Limited_Designated_Type): new predicate.
(Make_CW_Equivalent_Type): Modified to handle class-wide interface
objects.
Remove all handling of with_type clauses.
* par-ch10.adb: Remove all handling of with_type clauses.
* lib-load.ads, lib-load.adb (Load_Main_Source): Do not get the
checksum if the main source could not be parsed.
(Loat_Unit): When processing a child unit, determine properly whether
the parent unit is a renaming when the parent is itself a child unit.
Remove handling of with_type clauses.
* sinfo.ads, sinfo.adb (Is_Static_Coextension): New function.
(Set_Is_Static_Coextension): New procedure.
(Has_Local_Raise): New function
(Set_Has_Local_Raise): New procedure
(Renaming_Exception): New field
(Has_Init_Expression): New flag
(Delay_Finalize_Attach): Remove because flag is obsolete.
(Set_Delay_Finalize_Attach): Remove because flag is obsolete.
Remove all handling of with_type clauses.
(Exception_Junk): Can now be set in N_Block_Statement
From-SVN: r125410
2007-04-20 Robert Dewar <dewar@adacore.com>
* exp_strm.adb (Make_Field_Attributes): Avoid _Parent components that
are interface type.
(Build_Elementary_Input_Call): For floating-point use right type in the
absence of strange size or stream size clauses.
(Build_Elementary_Write_Call): Same fix
(Has_Stream_Standard_Rep): Returns False if Stream_Size attribute
set to value that does not match base type size.
From-SVN: r125409
2007-04-20 Ed Schonberg <schonberg@adacore.com>
Arnaud Charlet <charlet@adacore.com>
Robert Dewar <dewar@adacore.com>
Gary Dismukes <dismukes@adacore.com>
* exp_prag.adb (Expand_Pragma_Import_Or_Interface): Remove properly a
default initialization on an imported object, when there is no
initialization call generated for it.
(Expand_Pragma_Assert): Add handling of No_Exception_Propagation
restriction
* snames.h, snames.ads, snames.adb, par-prag.adb: New pragma
Static_Elaboration_Desired.
Remove pragma Thread_Body.
Implement a new pragma No_Body
Removes the Explicit_Overriding pragma
Remove Optional_Overriding pragma
(Prag): Deal with Universal_Aliasing.
(Name_CIL, Name_CIL_Constructor, Convention_CIL,
Pragma_CIL_Constructor): New names.
* sem_cat.adb (Validate_Object_Declaration): An initialization that
uses the equivalent aggregate of a type must be treated as an implicit
initialization.
(Get_Categorization): Check a unit for pragma Preelaborate only if it
has none of the other categories.
(Process_Import_Or_Interface_Pragma): Report an error for an attempt
to apply Import to an object renaming declaration.
* sem_prag.adb (Process_Import_Or_Interface): Warn that a type imported
from a C++ class should be declared as limited and that it will be
considererd limited.
(Analyze_Pragma): Warn that a type specified with pragma CPP_Class
should be declared as limited and that it will be considererd limited.
(Ada_2005_Pragma): New procedure, used to deal with Ada 2005 pragmas
(Analyze_Pragma, case Export): Diagnose export of enumeration literal
(Analyze_Pragma): Deal with Universal_Aliasing.
(Sig_Flags): Likewise.
(Set_Encoded_Interface_Name): Suppress encoding when compiling for AAMP.
(Overflow_Checks_Unsuppressed): New flag.
(Process_Suppress_Unsuppress): Set Overflow_Checks_Unsuppressed.
(Analyze_Pragma [case Pack]): Ignore pragma Pack and post warning in
case of JVM or .NET targets, and compiling user code.
Add debugging convenience routine rv
From-SVN: r125408
2007-04-20 Robert Dewar <dewar@adacore.com>
Ed Schonberg <schonberg@adacore.com>
* exp_pakd.adb (Expand_Packed_Not): Use RM_Size rather than ESize to
compute masking constant, since we now set Esize properly to the
underlying size.
(Create_Packed_Array_Type): Set proper Esize value adjusted as required
to match the alignment.
(Create_Packed_Array_Type): Use Short_Short_Unsigned as base type for
packed arrays of 8 bits or less.
* freeze.adb (Freeze_Entity): When freezing the formals of a
subprogram, freeze the designated type of a parameter of an access type
only if it is an access parameter.
Increase size of C convention enumeration object
(Freeze_Entity, array type case): Make sure Esize value is properly
adjusted for the alignment if it is known.
(Freeze_Entity, array type case): When checking bit packed arrays for
the size being incorrect, check RM_Size, not Esize.
(Freeze_Record_Type): Check for bad discriminated record convention
(In_Exp_Body): Return true if the body is generated for a subprogram
renaming, either an attribute renaming or a renaming as body.
(Check_Itype): If the designated type of an anonymous access component
is a non-protected subprogram type, indicate that it is frozen, to
prevent out-of-scope freeze node at some subsequent call.
(Freeze_Subprogram): On OpenVMS, reject descriptor passing mechanism
only if the subprogram is neither imported nor exported, as well as the
NCA descriptor class if the subprogram is exported.
From-SVN: r125407
2007-04-20 Javier Miranda <miranda@adacore.com>
* exp_intr.adb (Expand_Unc_Deallocation): Add missing support for
deallocation of class-wide interface objects.
(Expand_Dispatching_Constructor_Call): Take into account that if the
result of the dispatching constructor is an interface type, the
function returns a class-wide interface type; otherwise the returned
object would be actual. The frontend previously accepted returning
interface types because Expand_Interface_Actuals silently performed
the management of the returned type "as if" it were a class-wide
interface type.
(Expand_Dispatching_Constructor_Call): Replace call to
Make_DT_Access_Action by direct call to Make_Function_Call.
From-SVN: r125406
2007-04-20 Javier Miranda <miranda@adacore.com>
* exp_imgv.adb (Expand_Value_Attribute): Disable compilation of this
attribute compiling package Ada.Tags under No_Run_Time_Mode.
From-SVN: r125405
2007-04-20 Geert Bosch <bosch@adacore.com>
* exp_fixd.adb (Integer_Literal): Add optional argument to construct a
negative literal
(Do_Divide_Fixed_Fixed): Add comments to indicate Frac is always
positive
(Do_Divide_Fixed_Universal): Handle case of negative Frac.
(Do_Multiply_Fixed_Fixed): Add coments to indicate Frac is always
positive
(Do_Multiply_Fixed_Universal): Handle case of negative Frac.
From-SVN: r125404
2007-04-20 Thomas Quinot <quinot@adacore.com>
* exp_dist.ads, exp_dist.adb (Make_Transportable_Check): New subprogram
(GARLIC_Support.Build_Subprogram_Receiving_Stubs,
PolyORB_Support.Build_Subprogram_Receiving_Stubs):
For a remote call to a function with a classwide return type, apply an
E.4(18) check to the returned value.
(Add_RACW_Primitive_Declarations_And_Bodies): Do not generate stubs for
stream attributes of the designated type of an RACW, as they are not
dispatching primitive operations.
From-SVN: r125403
2007-04-20 Javier Miranda <miranda@adacore.com>
Nicolas Setton <setton@adacore.com>
* exp_dbug.adb (Get_Encoded_Name): Modified to continue providing its
functionality when the backend is generating code.
Otherwise any serious error
reported by the backend calling the frontend routine Error_Msg
changes the Compilation_Mode to Check_Semantics, disables the
functionality of this routine and causes the generation of
spureous additional errors.
* exp_dbug.ads (Pointers to Unconstrained Arrays): Document the
debugging information now generated by the compiler for fat-pointer
types.
Document the contents of DW_AT_producer in the GNAT Vendor extensions to
DWARF2/3.
Document GNAT Vendor extensions to DWARF 2/3 and the "-gdwarf+" switch.
From-SVN: r125402
2007-04-20 Ed Schonberg <schonberg@adacore.com>
Robert Dewar <dewar@adacore.com>
Hristian Kirtchev <kirtchev@adacore.com>
* exp_ch9.ads, exp_ch9.adb (Build_Protected_Entry): Set sloc of
generated exception handler appropriately when debugging generated code.
Deal properly with No_Exception_Propagation restriction mode.
(Expand_N_Abort_Statement): Add an unchecked type conversion from
System.Address to System.Tasking.Task_Id when processing the result of
the predefined primitive _disp_get_task_id.
(Expand_N_Asynchronous_Select): Clarify comment.
(Expand_N_Protected_Type_Declaration): Minor code cleanup.
(Find_Parameter_Type): New routine inside Type_Conformant_Parameters.
(Type_Conformant_Parameters): New parameter Prim_Op_Typ. Code cleanup.
(Add_Private_Declarations, Build_Protected_Body): Use proper slocs for
privals and for generated call to Complete_Entry_Body, for better gdb
behavior.
(Copy_Result_Type): Utility to construct a parameter and result profile
for protected functions whose return type is an anonymous access to
subprogram.
(Build_Protected_Sub_Spec and Expand_Access_Protected_Subprogram_Type):
call the above.
(Build_Task_Activation_Call): Insert Activate_Tasks call at proper
point when the local-raise-to-goto transformation has taken place.
From-SVN: r125401
2007-04-20 Ed Schonberg <schonberg@adacore.com>
Thomas Quinot <quinot@adacore.com>
* exp_ch7.ads, exp_ch7.adb (Expand_Cleanup_Actions): Set Sloc of
inserted cleanup code appropriately for GDB use.
(Make_Deep_Proc): Use Make_Handler_For_Ctrl_Operation to create
exception handler for Deep_Adjust or Deep_Finalize.
(Make_Handler_For_Ctrl_Operation): New subprogram. When runtime entity
Raise_From_Controlled_Operation is available, use a call to that
subprogram instead of a plain "raise Program_Error" node to raise
Program_Error if an exception is propagated from an Adjust or Finalize
operation.
(Insert_Actions_In_Scope_Around): If the statement to be wrapped
appears in the optional statement list of a triggering alternative, the
scope actions can be inserted directly there, and not in the list that
includes the asynchronous select itself.
From-SVN: r125400
2007-04-20 Gary Dismukes <dismukes@adacore.com>
Ed Schonberg <schonberg@adacore.com>
* exp_ch6.ads, exp_ch6.adb (Expand_Call): When adding an extra
accessibility actual, check for the case of an aliased object that has
been rewritten as an Access attribute, and assign Prev to Prev_Orig so
we fall into processing for the attribute rather than the name of the
object.
(Expand_Inline_Call): If an actual is a literal, and the corresponding
formal has its address taken in the body, create a temporary to capture
value. If the return type is a limited interface, do not treat the
return value as Controlled.
(Is_In_Place_Function): If the return type is a limited interface,
treat as returning in place. The actual returned object may not always
be limited, but the caller has to assume that it is returned in place.
(Add_Final_List_Actual_To_Build_In_Place_Call): If the call is the
context of an allocator, use the correct finalization chain (that is,
the chain belonging to the access type, rather than the chain belonging
to the current scope).
(Add_Alloc_Form_Actual_To_Build_In_Place_Call): Test for a tagged
result type rather than a controlling result as a precondition for
adding an allocation form actual to a build-in-place call.
(Add_Final_List_Actual_To_Build_In_Place_Call): Ditto.
(Freeze_Subprogram): Code cleanup. Remove all the code that register the
primitive in the dispatch tables. This work is now done by Make_DT when
the type is frozen.
(Register_Predefined_DT_Entry): Removed.
(Add_Return): If end label is not present, use sloc of last statement
for generated return statement in procedure, for better gdb behavior
on expanded code.
(Add_Access_Actual_To_Build_In_Place_Call): Set parent fields of the
object address nodes to ensure proper processing by routines like
Insert_After*.
(Expand_Call): Fix generation of validity check for parameter
(Add_Alloc_Form_Actual_To_Build_In_Place_Call): Return without passing
the allocation form parameter if the result subtype is constrained,
except when the function has a controlling result.
(Add_Final_List_Actual_To_Build_In_Place_Call): Test Controlled_Type
rather than Is_Controlled and Has_Controlled_Component, since we want to
include class-wide result types in this treatment. Also test for a
controlling result, since that also requires passing a finalization
list.
(Make_Build_In_Place_Call_In_Allocator): Call Add_Alloc_Form_Actual_*
even when the result subtype is constrained, to handle calls involving
controlling results.
(Make_Build_In_Place_Call_In_Anonymous_Context): Add_Alloc_Form_Actual_*
is now called even when the result subtype is constrained, to handle
calls involving controlling results.
(Make_Build_In_Place_Call_In_Assignment): Remove test for Is_Constrained
on call to Add_Alloc_Form_Actual_To_Build_In_Place_Call (that procedure
now performs the test).
(Make_Build_In_Place_Call_In_Object_Declaration):
Add_Alloc_Form_Actual_* is now called even when the result subtype is
constrained, to handle calls involving controlling results.
(Add_Return): Accomodate rewritten pattern from local raise to goto
transformation, so that we still recognize an transfer statement
and do the right thing here in that case.
(Expand_N_Subprogram_Body): Add dummy Push/Pop_xxx_Label nodes at start
and end of subprogram code.
(Register_Interface_DT_Entry, Register_Predefined_DT_Entry): Add missing
support for primitives that are functions (without formals) with a
controlling result.
(Inherited_From_Formal): If the actual subtype has not generic parent
type, it is not an actual for a formal derived type, and there is no
operation to inherit from the formal.
From-SVN: r125399
2007-04-20 Ed Schonberg <schonberg@adacore.com>
Gary Dismukes <dismukes@adacore.com>
Javier Miranda <miranda@adacore.com>
* exp_ch5.adb (Expand_N_Assignment_Statement): For the assignment of a
controlled type, use Make_Handler_For_Ctrl_Operation to construct the
required exception handler.
(Expand_Simple_Function_Return, Expand_N_Return_Statement): Handle
properly the case of a function whose return type is a limited
class-wide interface type. Modify the code of the accessibility
check to handle class-wide interface objects. In this case we need to
displace "this" to reference the primary dispatch table to get access
to the TSD of the object (to evaluate its accessibility level).
(Expand_N_Extended_Return_Statement): Test for a tagged result type
rather than a controlling result as one of the conditions for
generating tests of the implicit BIP_Alloc_Form formal. The
initialization assignment is also handled according to whether the
result is tagged instead of controlling.
In the case where the init assignment is inserted in the "then" part of
the allocation conditional, rewrite the target to be a dereference of
the implicit BIP_Object_Access formal.
If the returned value is unconstrained and created on the secondary
stack, mark the enclosing block and function so that the secondary
stack is not reclaimed on return.
Treat returns from functions with controlling results similarly to
returns from functions with unconstrained result subtypes.
If the object returned is unconstrained, and an allocator must be
created for it, analyze the allocator once the block for the extended
return is installed, to ensure that finalizable components
of the expression use the proper finalization list. Guard the call to
Move_Final_List with a check that there is something to finalize.
(Make_Tag_Ctrl_Assignment): Use "old" handling
of controlled type assignment for virtual machines, since new code uses
unsupported features (such as direct access to bytes in memory).
From-SVN: r125398
2007-04-20 Javier Miranda <miranda@adacore.com>
Hristian Kirtchev <kirtchev@adacore.com>
Bob Duff <duff@adacore.com>
* exp_ch4.adb (Complete_Coextension_Finalization): Add machinery to
handle the creation of finalization lists and calls for nested
coextensions when the root of the chains is part of a return statement.
(Inside_A_Return_Statement): New function inside Complete_Coextension_
Finalization.
(Expand_Record_Equality): Skip components that are interface types.
(Displace_Allocator_Pointer): Add missing support for interface subtypes
(Expand_N_Allocator): Replace invocation of Is_Local_Access_Discriminant
with Rewrite_Coextension. Change the condition for detecting coextension
root nodes.
(Is_Local_Access_Discriminant): Removed.
(Rewrite_Coextension): New routine which rewrites a static coextension
as a temporary and uses its unrestricted access in the construction of
the outer object.
(Complete_Coextension_Finalization): New routine. Generate finalization
attachment calls to all delayed coextensions.
(Expand_N_Allocator): Call Complete_Coextension_Finalization whenever
the allocator is not a coextension itself and has delayed coextensions.
If the current allocator is controlled, but also a coextension, delay
the generation of the finalization attachment call.
Rename local variable "Node" to "Nod" in order to avoid confusion with
"Elists.Node".
(Expand_Allocator_Expression): Call Adjust for initialized allocators of
limited types that are not inherently limited. Such an allocator is
illegal, but is generated by the expander for a return statement, to
copy the result onto the secondary stack. This is the only case where a
limited object can be copied. Generate code to displace the pointer
to the object if the qualified expression is a class-wide interface
object. Such displacement was missing and hence the copy of the object
was wrong.
(Apply_Accessibility_Check): Handle allocated objects initialized in
place.
(Displace_Allocator_Pointer): Subsidiary procedure to Expand_N_Allocator
and Expand_Allocator_Expression. Allocating class-wide interface objects
this routine displaces the pointer to the allocated object to reference
the component referencing the corresponding secondary dispatch table.
Expand_Allocator_Expression): Add missing support to allocate class-wide
interface objects initialized with a qualified expression.
(Get_Allocator_Final_List): Test for an anonymous access type that is a
function result type, and use the finalization list associated with the
function scope in that case (such an anonymous type should not be
treated like an access parameter's type).
From-SVN: r125397
2007-04-20 Ed Schonberg <schonberg@adacore.com>
Javier Miranda <miranda@adacore.com>
Robert Dewar <dewar@adacore.com>
* exp_ch3.adb (Make_Controlling_Function_Wrappers): generate wrapper a
wrapper when the full view of the controlling type of an inherited
function that dispatches on result implements interfaces.
(Expand_N_Object_Declaration): In cases where the type of the
declaration is anonymous access, create finalization list for it.
(Expand_N_Object_Declaration): Generate a persistent_bss directive only
if the object has no explicit initialization, to match description of
functionality of pragam Persistent_BSS.
(Build_Equivalent_Array_Aggregate, Build_Equivalent_Record_Aggregate):
new function to build static aggregates, to replace initialization call
when static initialization is desired.
(Freeze_Type): Generate a list controller for an access type whenever
its designated type has controlled anonymous access discriminants.
(Build_Equivalent_Aggregate): New procedure to compute a static
aggregate to be used as default initialization for composite types,
instead of a generating a call to the initialization procedure for the
type.
(Build_Initialization_Call): When available, replace a call to the
initialization procedure with a copy of the equivalent static aggregate
for the type.
(Expand_N_Object_Declaration): Use New_Occurrence_Of in generated
declarations for objects of a class-wide interface type, rather than
just identifiers, to prevent visibility problems.
(Expand_N_Object_Declaration): When expanding the declaration for an
object of a class-wide interface type, preserve the homonym chain of
the original entity before exchanging it with that of the generated
renaming declaration.
(Freeze_Enumeration_Type): Don't raise CE if No_Exception_Propagation
active, because there is no way to handle the exception.
(Freeze_Record_Type): In case of CPP_Class types add a call to Make_DT
to do a minimum decoration of the Access_Disp_Table list.
(Expand_Record_Controller): Avoid the addition of the controller between
the component containing the tag of a secondary dispatch table and its
adjacent component that stores the offset to the base of the object.
This latter component is only generated when the parent type has
discriminants ---documented in Add_Interface_Tag_Components).
(Apply_Array_Size_Check): Removed, no longer needed.
(Expand_N_Full_Type_Declaration): If the type has anonymous access
components, create a Master_Entity for it only if it contains tasks.
(Build_Init_Procedure): Suppress the tag assignment compiling under
no run-time mode.
(Freeze_Record_Type): Remove code associated with creation of dispatch
table.
(Init_Secondary_Tags): Update type of actuals when generating calls to
Ada.Tags.Set_Offset_To_Top
(Stream_Operation_OK): Disable use of streams compiling under no
run-time mode
(Expand_N_Object_Declaration): Don't do Initialize_Scalars initalization
if Has_Init_Expression set.
(Build_Init_Procedure): Replace call to Fill_DT_Entry by call to
Register_Primitive, which provides the same functionality.
(Requires_Init_Proc): Return false in case of interface types.
(Add_Secondary_Tables): Use the new attribute Related_Interface to
cleanup the code.
(Predefined_Primitive_Freeze): Do not assume that an internal entity
is always associated with a predefined primitive because the internal
entities associated with interface types are not predefined primitives.
Therefore, the call to Is_Internal is replaced by a call to the
function Is_Predefined_Dispatching_Operation.
(Make_Eq_If): When generating the list of comparisons for the
components of a given variant, omit the controller component that is
present if the variant has controlled components.
From-SVN: r125396
2007-04-20 Hristian Kirtchev <kirtchev@adacore.com>
Robert Dewar <dewar@adacore.com>
Ed Schonberg <schonberg@adacore.com>
Gary Dismukes <dismukes@adacore.com>
* exp_ch2.adb: Remove "with" and "use" clauses for Namet and Snames.
Add "with" and "use" clauses for Sem_Attr.
(Expand_Current_Value): Do not replace occurences of attribute
references where the prefix must be a simple name.
* sem_attr.ads, sem_attr.adb: Remove "with" and "use" clauses for
Namet. Add new arrays Attribute_Name_Modifies_Prefix and
Attribute_Requires_Simple_Name_Prefix.
(Name_Modifies_Prefix): Body of new function.
(Requires_Simple_Name_Prefix): Body of new function.
(Resolve_Attribute, case Access): Improve error message for case of
mismatched conventions.
(Analyze_Attribute, case 'Tag): The prefix the attribute cannot be of an
incomplete type.
(Analyze_Attribute, case 'Access): If the type of the prefix is a
constrained subtype for a nominal unconstrained type, use its base type
to check for conformance with the context.
(Resolve_Attribute): Remove test of the access type being associated
with a return statement from condition for performing accessibility
checks on access attributes, since this case is now captured by
Is_Local_Anonymous_Access.
(Analyze_Access_Attribute): Set Address_Taken on entity
(Analyze_Attribute, case Address): Set Address_Taken on entity
(OK_Self_Reference): Traverse tree to locate enclosing aggregate when
validating an access attribute whose prefix is a current instance.
(Resolve_Attribute): In case of attributes 'Code_Address and 'Address
applied to dispatching operations, if freezing is required then we set
the attribute Has_Delayed_Freeze in the prefix's entity.
(Check_Local_Access): Set flag Suppress_Value_Tracking_On_Call in
current scope if access of local subprogram taken
(Analyze_Access_Attribute): Check legality of self-reference even if the
expression comes from source, as when a single component association in
an aggregate has a box association.
(Resolve_Attribute, case 'Access): Do not apply accessibility checks to
the prefix if it is a protected operation and the attribute is
Unrestricted_Access.
(Resolve_Attribute, case 'Access): Set the Etype of the attribute
reference to the base type of the context, to force a constraint check
when the context is an access subtype with an explicit constraint.
(Analyze_Attribute, case 'Class): If the prefix is an interface and the
node is rewritten as an interface conversion. leave unanalyzed after
resolution, to ensure that type checking against the context will take
place.
From-SVN: r125395
2007-04-20 Ed Schonberg <schonberg@adacore.com>
Gary Dismukes <dismukes@adacore.com>
* exp_ch13.adb (Expand_N_Attribute_Definition_Clause, case 'Address):
If the initialization is the equivalent aggregate of the initialization
procedure of the type, do not remove it.
(Expand_N_Attribute_Definition_Clause): Exclude access variables
initialized to null from having their expression reset to empty and
note this exception in the comment.
From-SVN: r125394
2007-04-20 Hristian Kirtchev <kirtchev@adacore.com>
Javier Miranda <miranda@adacore.com>
Robert Dewar <dewar@adacore.com>
* exp_attr.adb (Expand_N_Attribute_Reference): Case Callable and
Terminated: Add unchecked type conversion from System.Address to
System.Tasking.Task_Id when calling the predefined primitive
_disp_get_task_id.
Disable new Ada 05 accessibility check for JVM.NET targets, which
cannot be implemented in a practical way.
(Expand_N_Attribute_Reference: case Attribute_Tag): The use of 'Tag in
the sources always references the tag of the actual object. Therefore,
if 'Tag is applied in the sources to class-wide interface objects we
generate code that displaces "this" to reference the base of the object.
(Expand_N_Attribute_Reference, case Size): Return specified size if
known to front end.
(Expand_N_Attribute_Reference): The expansion of the 'Address attribute
has code that displaces the pointer of the object to manage interface
types. However this code must not be executed when the prefix is a
subprogram. This bug caused the wrong expansion of the internally
generated assignment that fills the dispatch table when the primitive
is a function returning a class-wide interface type.
(Expand_N_Attribute_Reference:Attribute_Valid): Remove incorrect call to
Set_Attribute_Name for Name_Unaligned_Valid.
From-SVN: r125393
2007-04-20 Javier Miranda <miranda@adacore.com>
Ed Schonberg <schonberg@adacore.com>
Bob Duff <duff@adacore.com>
Hristian Kirtchev <kirtchev@adacore.com>
* exp_aggr.ads, exp_aggr.adb:
(Build_Record_Aggr_Code): Add missing initialization of secondary tags
in extension aggregates.
(Flatten): Other conditions being met, an aggregate is static if the
low bound given by component associations is different from the low
bound of the base index type.
(Packed_Array_Aggregate_Handled): If the component type is itself a
packed array or record, the front-end must expand into assignments.
(Gen_Ctrl_Actions_For_Aggr): In call to Init_Controller, pass False to
Init_Pr, instead of Ancestor_Is_Expression.
(Gen_Ctrl_Actions_For_Aggr): When processing an aggregate of a
coextension chain root, either generate a list controller or use the
already existing one.
(Static_Array_Aggregate): New procedure to construct a positional
aggregate that can be handled by the backend, when all bounds and
components are compile-time known constants.
(Expand_Record_Aggregate): Force conversion of aggregates of tagged
types covering interface types into assignments.
(Replace_Type): move to Build_Record_Aggr_Code.
(Expand_Record_Aggr_Code): if the target of the aggregate is an
interface type, convert to the definite type of the aggregate itself,
so that needed components are visible.
(Convert_Aggr_In_Object_Decl): If the aggregate has controlled
components and the context is an extended return statement do not
create a transient block for it, to prevent premature finalization
before the return is executed.
(Gen_Assign): Do not generate a call to deep adjust routine if the
component type is itself an array of controlled (sub)-components
initialized with an inner aggregate.
(Component_Check): New name for Static_Check. This name is now more
appropriate, and documentation is added which was missing.
(Component_Check): Add test for bit aligned component value
(Component_Not_OK_For_Backend): Renames Has_Delayed_Nested_Aggregate_Or_
Tagged_Comps, name is more appropriate given added function below.
(Component_Not_OK_For_Backend): Check for bit aligned component ref.
From-SVN: r125392
2007-04-20 Robert Dewar <dewar@adacore.com>
* sinput.ads, sinput.adb, uintp.ads, urealp.adb, stringt.adb,
sem_elim.adb, prj-strt.adb, repinfo.ads, repinfo.adb, namet.ads,
elists.ads, elists.adb, lib.ads, lib.adb (Unlock): New procedure.
Fix lower bound of tables.
Add rep clauses.
* nlists.adb: Ditto.
(Prev_Node, Next_Node): Change index type to Int so that it properly
covers the range First_Node_Id - 1 up.
From-SVN: r125391
2007-04-20 Javier Miranda <miranda@adacore.com>
Ed Schonberg <schonberg@adacore.com>
Robert Dewar <dewar@adacore.com>
Eric Botcazou <ebotcazou@adacore.com>
Arnaud Charlet <charlet@adacore.com>
* einfo.ads, einfo.adb (Available_View): New synthesized attribute
applicable to types that have the With_Type flag set. Returns the
non-limited view of the type, if available, otherwise the type itself.
For class-wide types, there is no direct link in the tree, so we have
to retrieve the class-wide type of the non-limited view of the Etype.
New attributes Static_Initialization and Static_Elaboration_Desired.
Remove the pragma Thread_Body, and the associated flag
Is_Thread_Body in entities, and all related code.
(Suppress_Value_Tracking_On_Call): New flag
E_Exception has Esize and Alignment fields
(Universal_Aliasing): New function.
(Set_Universal_Aliasing): New procedure.
(Write_Entity_Flags): Deal with Universal_Aliasing flag.
(Check_Nested_Access): New procedure.
(Has_Up_Level_Access, Set_Has_Up_Level_Access): New procedures.
(Find_Direct_Name, Note_Possible_Modification): Use Check_Nested_Access.
(Related_Interface): New attribute. Present in dispatch table pointer
components of records. Set to point to the entity of the corresponding
interface type.
(Is_By_Reference_Type): Recurse on the full view of an incomplete type.
(Original_Access_Type): Remove, not needed.
(Root_Type): Handle properly subtypes of class-wide-types.
Update comments.
* sem_ch4.adb (Analyze_Explicit_Dereference): Add support for
class-wide types visible through limited-with clauses.
(Try_Primitive_Operation): When examining all primitive operations of a
tagged type, do not consider subprograms labeled as hidden unless they
belong to a private generic type with a tagged parent.
(Try_Object_Operation): Extensive rewriting, to handle properly various
overloading cases, when several ancestors may have class-wide operations
that are possible candidates, and when the overloaded functions return
array types and have defaulted parameters so that the call may be
interpreted as an indexing.
(Analyze_Allocator): Remove Mark_Allocator and its invocation.
(Process_Function_Call): use Next, rather than Next_Actual, to analyze
successive actuals before analyzing the call itself.
(Try_Primitive_Operation): A primitive operation is compatible with the
prefix if the prefix has a synchronized type and the type of the formal
is its corresponding record, as can be the case when the primitive
operation is declared outside of the body of the type.
(Traverse_Homonyms): New subprocedure of Try_Class_Wide_Operation, to
perform homonym traversal, looking for class-wide operation matches
(formerly done in statements of Try_Class_Wide_Operation). Matches on
access parameters are now restricted to anonymous access types.
(Mark_Allocator): An allocator with a discriminant association parent is
a coextension.
(Try_One_Prefix_Interpretation): If the type of the object is
incomplete, as can be happen when it is a limited view obtained through
a limited_with_clause, the selected component is not part of a prefixed
call.
(Complete_Object_Operation): Diagnose properly an object that is not
aliased when the corresponding controlling formal is an access
parameter.
(Try_Primitive_Operation, Try_Class_Wide_Operation): Diagnose properly
ambiguous calls in prefixed notation, where two primitives differ only
in that the controlling argument of one is an access parameter.
* sem_ch6.adb (Has_Single_Return): Add guard in code that determines
whether a function that returns an unconstrained type can be inlined.
(Process_Formals): Diagnose properly the illegal use of an incomplete
type in the profile of an access_to_subprogram declaration.
(Check_Synchronized_Overriding): Nothing check for concurrent types, the
operations are attached to the corresponding record.
(Analyze_Subprogram_Specification): Add variables Formal and Formal_Typ.
When processing a primitive of a concurrent type which implements an
interface change the type of all controlling formals to that of the
corresponding record type.
(Check_Synchronized_Overriding): Relax the conditional logic when trying
to determine the tagged type to which a primitive belongs.
(Check_Conventions): Capture condition to ignore a primitive operation
(which is shared between the loop in Check_Conventions and the one in
Check_Convention) in a new local function Skip_Check.
(Check_Convention): Rename Prim_Op to Second_Prim_Op to avoid possible
confusion with Check_Conventions' own Prim_Op local variable.
(Create_Extra_Formals): Test for a tagged result type rather than a
controlling result when determining whether to add a BIP_Alloc_Form
formal and a BIP_Final_List formal to the function.
(Check_Conformance); For parameters that are anonymous access types,
subtype conformance requires that the not null and the constant
indicators must match
(Check_Synchronized_Overriding): New parameter Formal_Typ. Add machinery
to retrieve the appropriate type when processing a concurrent type
declared within a generic. Minor comment reformatting. Change invocation
of Overrides_Synchronized_Primitive to Find_Overridden_Synchronized_Pri-
mitive.
(Analyze_Subprogram_Body): If the return type of a function is an
anonymous access to the limited view of a class-wide type, and the
non-limited view of the type is available, update the type of the
function so that code can be generated.
(Process_Formals): In case of access-subtype itype whose designated
type is also an itype (situation that happens now with access to
subprograms) we mark the access-type itype with the Has_Delayed_Freeze
attribute to avoid backend problems.
(Check_Return_Subtype_Indication): Replace R_Type with R_Stm_Type in
init of R_Stm_Type_Is_Anon_Access. Also check that base types of the
anonymous types' designated types are same before testing
Subtypes_Statically_Match.
(Create_Extra_Formals): Test for a named access parameter that is a
controlling formal as an additional condition for adding an
accessibility level formal. This can occur in the subp type created for
dispatching calls in Expand_Dispatching_Call, and allows calling
Create_Extra_Formals from that procedure rather than special-casing the
extra formals there.
(Create_Extra_Formals): Add BIP_Alloc_Form and BIP_Final_List formals
when the function has a controlling result.
(Check_Returns): Add much more knowledge of the optimization of local
raise statements to gotos, to retain proper warnings in this case.
(Check_Statement_Sequence): Ignore N_Push_xxx_Label and N_Pop_xxx_Label
nodes when looking for last statement.
* sem_type.ads, sem_type.adb (Specific_Type): Add support for
class-wide types visible through limited with clauses.
(Add_One_Interp): If the operands are anonymous access types, the
predefined operator on universal_access is immediately visibles
(Find_Unique_Type): Handle anonymous access to subprogram types just as
other anonymous access types.
(Disambiguate): Take into account CIL convention.
(Interface_Present_In_Ancestor): Add support for class-wide interfaces.
From-SVN: r125390
2007-04-20 Pascal Obry <obry@adacore.com>
* clean.adb (Clean_Archive): Use untouched casing for the archive name
and the corresponding .deps file.
(Clean_Interface_Copy_Directory): Use untouched casing for the library
src directory. Minor code-clean-up. Use untouched casing for files
read into the library src dir.
(Clean_Library_Directory): Idem.
(Parse_Cmd_Line): Accept new switch -aP
From-SVN: r125389
2007-04-20 Javier Miranda <miranda@adacore.com>
Robert Dewar <dewar@adacore.com>
Ed Schonberg <schonberg@adacore.com>
* checks.ads, checks.adb (Apply_Address_Clause_Check): Handle case in
which the address-clause is applied to in-mode actuals (allowed by
13.1(22)).
(Apply_Discriminant_Check): Do not generate a check if the type is
constrained by a current instance.
(Activate_Division_Check): New procedure
(Activate_Overflow_Check): New procedure
(Activate_Range_Check): New procedure
Call these new Activate procedures instead of setting flags directly
(Apply_Array_Size_Check): Removed, no longer needed.
Code clean up: remove obsolete code related to GCC 2.
(Get_E_Length): Protect against bomb in case scope is standard
(Selected_Range_Checks): If the node to be checked is a conversion to
an unconstrained array type, and the expression is a slice, use the
bounds of the slice to construct the required constraint checks.
Improve NOT NULL error messages
(Apply_Constraint_Check): If the context is a null-excluding access
type, diagnose properly the literal null.
From-SVN: r125388
