2007-12-06  Robert Dewar  <dewar@adacore.com>

	* g-byorma.adb, g-byorma.ads, g-decstr.adb, g-decstr.ads,
	g-deutst.ads, g-encstr.adb, g-encstr.ads, g-enutst.ads: New files.

	* scn.adb: Implement BOM recognition

From-SVN: r130849

	* rtsfind.adb (Check_CRT): Take into account RTE_Available_Call
	Fixes another case where RTE_Available_Call was ignored instead of being
	taken into account.
	(Load_Fail): Ditto.

	* rtsfind.ads: Add new entries.

From-SVN: r130848

restrict.ads, [...] (Check_Implicit_Dynamic_Code_Allowed): New procedure to be called from the back end to check the...

2007-12-06  Bob Duff  <duff@adacore.com>

	* restrict.ads, restrict.adb (Check_Implicit_Dynamic_Code_Allowed): New
	procedure to be called from the back end to check the
	No_Implicit_Dynamic_Code restriction.

From-SVN: r130847

2007-12-06  Emmanuel Briot  <briot@adacore.com>
	    Vincent Celier  <celier@adacore.com>

	* prj.ads, prj.adb (Is_A_Language): Now takes a Name_Id instead of a
	string
	(Must_Check_Configuration, Default_Language_Is_Ada): new flags in
	prj.ads
	(Hash): Move instantiation of System.HTable.Hash from spec to body
	(prj-nmsc.adb): Optimize calls to Name_Find when on case sensitive
	systems, since we do not need to recompute the Name_Id for the canonical
	file name.
	(Body_Suffix_Id_Of, Spec_Suffix_Id_Of): new version that takes a name_id
	as a parameter. This parameter is in fact always "ada" in all calls, and
	we were doing 160560 extra calls to Name_Find to convert it to Name_Ada
	while loading a project with 40000 files

	* prj-attr.adb: Fix name of attribute Dependency_Driver
	Change the kind of indexing for attribute Root

	* prj-dect.adb (Parse_Declarative_Items): Allow redeclarations of
	variables already declared, in case constructions.

	* prj-env.adb (Initialize): Reset Current_Source_Path_File and
	Current_Object_Path_File to No_Path.

	* prj-ext.adb (Initialize_Project_Path): In multi language mode, use
	ADA_PROJECT_PATH if value of GPR_PROJECT_PATH is empty.

	* prj-makr.adb: new parameter Current_Dir

	* prj-nmsc.ads, prj-nmsc.adb (Find_Explicit_Sources): Do not look for
	Ada sources when language is not Ada.
	Change Opt.Follow_Links to Opt.Follow_Links_For_Files.
	(Find_Excluded_Sources, Find_Explicit_Sources): new subprograms
	(Must_Check_Configuration, Default_Language_Is_Ada): new flags.
	(Locate_Directory): Always resolve links when computing Canonical_Path
	(Look_For_Sources): Make sure that Name_Buffer contains the file name
	in Source_Files before checking for the presence of a directory
	separator.
	Optimize calls to Name_Find when on case sensitive systems.
	(Body_Suffix_Id_Of, Spec_Suffix_Id_Of): new version that takes a name_id
	as a parameter.
	(Prj.Nmsc.Check): new parameter Current_Dir
	(Check_Ada_Naming_Schemes): Restrictions on suffixes are relaxed. They
	cannot be empty and the spec suffix cannot be the same as the body or
	separate suffix.
	(Get_Unit): When a file name can be of several unit kinds (spec, body or
	subunit), always consider the longest suffix.
	(Check_Configuration): Do not issue an error if there is no compiler
	for a language. Just issue a warning and ignore the sources for the
	language.
	(Check_Library_Attributes): Only check Library_Dir if Library_Name is
	not empty.
	(Check_Naming_Schemes.Maked_Unit): Only output message if high verbosity
	(Unit_Exceptions): New hash table
	(Check_Naming_Schemes): Check if a file that could be a unit because of
	the naming scheme is not in fact a source because there is an exception
	for the unit.
	(Look_For_Sources): Put the unit exceptions in hash table
	Unit_Exceptions
	(Get_Unit_Exceptions): Give initial value No_Source to local variable
	Other_Part to avoid exception when code is compiled with validity
	checking.
	(Get_Sources_From_File): Check that there is no directory information
	in the file names.
	(Look_For_Sources): Check that there is no directory information in the
	list of file names in Source_Files.
	(Look_For_Sources): In multi-language mode, do not allow exception file
	names that are excluded.
	(Excluded_Sources_Htable): New hash table
	(Search_Directories.Check_File): New procedure to simplify
	Search_Directories.
	(Search_Directories): Do not consider excluded sources
	(Look_For_Sources): Populate Excluded_Sources_Htable before calling
	Search_Directories.
	(Get_Exceptions): Set component Lang_Kind of Source_Data
	(Get_Unit_Exceptions): Ditto
	(Search_Directories): Ditto

	* prj-pars.adb: new parameter Current_Dir

	* prj-part.ads, prj-part.adb: 
	Change Opt.Follow_Links to Opt.Follow_Links_For_Files.
	(Opt.Follow_Links_For_Dirs): New flag
	(Project_Path_Name_Of): Cache information returned by this routine as
	Locate_Regular_File is a costly routine. The code to output a log
	information and the effective call to Locate_Regular_File is now
	factorized into a routine (code clean-up).
	(Parse, Parse_Single_Project): new parameter Current_Dir
	When main project file cannot be found, indicate in the error
	message the project path that was used to do the search.

	* prj-proc.ads, prj-proc.adb (Opt.Follow_Links_For_Dirs): New flag
	(Prj.Proc.Process*): new parameter Current_Dir

	* switch-m.adb: Change Opt.Follow_Links to Opt.Follow_Links_For_Files

From-SVN: r130846

inline.adb (Back_End_Cannot_Inline): Use new flag Has_Pragma_Inline_Always instead of obsolete function Is_Always_Inlined

2007-12-06  Robert Dewar  <dewar@adacore.com>

	* inline.adb (Back_End_Cannot_Inline): Use new flag
	Has_Pragma_Inline_Always instead of obsolete function Is_Always_Inlined

	* sem_ch6.ads, sem_ch6.adb (Analyze_Subprogram_Body): Use new flag
	Has_Pragma_Inline_Always instead.
	of obsolete function Is_Always_Inlined
	(Build_Body_To_Inline): Same change
	(Cannot_Inline): Same change
	Do not give warning on exception raise in No_Return function

	* sem_ch13.adb (Analyze_Record_Representation_Clause): If an inherited
	component has two inconsistent component clauses in the same record
	representation clause, favor the message that complains about
	duplication rather than inconsistency.
	Update comments.
	(Record_Representation_Clause): Do not warn on missing component
	clauses for inherited components of a type extension.
	(Rep_Item_Too_Late): Do not attempt to link pragma into rep chain for
	an overloadable item if it is a pragma that can apply to multiple
	overloadable entities (e.g. Inline) because a pragma cannot be on
	more than one chain at a time.
	(Validate_Unchecked_Conversion): Add code to warn on unchecked
	conversion where one of the operands is Ada.Calendar.Time.
	(Analyze_Attribute_Definition_Clause): Fix typo in error message.
	For now, ignore Component_Size clause on VM targets, as done for
	pragma Pack.

From-SVN: r130845

2007-12-06  Robert Dewar  <dewar@adacore.com>

	* g-spipat.adb (Break): Fix accessibility error (vsn taking not null
	access Vstring)

From-SVN: r130844

2007-12-06  Robert Dewar  <dewar@adacore.com>

	* g-spchge.ads, g-spchge.adb, g-u3spch.adb, g-u3spch.ads,
	g-wispch.adb, g-wispch.ads, g-zspche.adb, g-zspche.ads,
	namet-sp.adb, namet-sp.ads: New files.

	* g-speche.adb: Use generic routine in g-spchge

	* s-wchcnv.ads, s-wchcnv.adb: 
	Minor code cleanup (make formal type consistent with spec)

	* namet.adb: Update comments.

	* par-endh.adb (Evaluate_End_Entry): Use new
	Namet.Sp.Is_Bad_Spelling_Of function

	* par-load.adb (Load): Use new Namet.Sp.Is_Bad_Spelling_Of function

	* sem_aggr.adb (Resolve_Record_Aggregate): If a component of an
	ancestor is an access type initialized with a box, set its type
	explicitly, for use in subsequent expansion.
	(Check_Misspelled_Component): Use new Namet.Sp.Is_Bad_Spelling_Of
	function

From-SVN: r130843

2007-12-06  Vasiliy Fofanov  <fofanov@adacore.com>

	* g-regist.ads, g-regist.adb (Set_Value): new parameter Expand; when
	set to True this procedure will create the value of type REG_EXPAND_SZ.
	It was only possible to create REG_SZ values before.

From-SVN: r130842

gnatcmd.adb (GNATCmd): Do not issue -d= switch to gnatmetric when object directory of main project...

2007-12-06  Vincent Celier  <celier@adacore.com>

	* gnatcmd.adb (GNATCmd): Do not issue -d= switch to gnatmetric when
	object directory of main project does not exist.
	On VMS, correctly set then environment variable for the source
	directories.

From-SVN: r130841

2007-12-06  Robert Dewar  <dewar@adacore.com>
	    Ed Schonberg  <schonberg@adacore.com>

	* gnat1drv.adb (Gnat1drv): Properly set new flag Opt.Real_VMS_Target

	* layout.adb (Resolve_Attribute, case 'Access): If designated type of
	context is a limited view, use non-limited view when available. If the
	non-limited view is an unconstrained array, this enforces consistency
	requirements in 3.10.2 (27).
	(Layout_Type): For an access type whose designated type is a limited
	view, examine its declaration to determine if it is an unconstrained
	array, and size the access type accordingly.
	(Layout_Type): Do not force 32-bits for convention c subprogram
	pointers in -gnatdm mode, only if real vms target.

	* sem_attr.adb (Analyze_Access_Attribute): Use new flag
	Has_Pragma_Inline_Always instead of obsolete function Is_Always_Inlined
	(Analyze_Access_Attribute,Attribute_Address): Remove checks for
	violations of the No_Implicit_Dynamic_Code restriction.
	(Resolve_Attribute, case 'Access): If designated type of context is a
	limited view, use non-limited view when available. If the non-limited
	view is an unconstrained array, this enforces consistency requirements
	in 3.10.2 (27).
	(Layout_Type): For an access type whose designated type is a limited
	view, examine its declaration to determine if it is an unconstrained
	array, and size the access type accordingly.

From-SVN: r130840

2007-12-06  Emmanuel Briot  <briot@adacore.com>

	* g-calend.ads (No_Time): New constant, to represent an uninitialized
	time value

	* g-catiio.ads, g-catiio.adb (Value): Added support for more date
	formats.
	(Month_Name_To_Number): New subprogram

	* g-dirope.adb (Get_Current_Dir): On windows, normalize the drive
	letter to upper-case.

From-SVN: r130839

2007-12-06  Robert Dewar  <dewar@adacore.com>
	    Ed Schonberg  <schonberg@adacore.com>

	* exp_prag.adb (Expand_Pragma_Assert): Recognize new warning flag for
	assert fail

	* ug_words: Add entries for -gnatw.a -gnatw.A

	* sem_res.adb (Set_String_Literal_Subtype): If the context of the
	literal is a subtype with non-static constraints, use the base type of
	the context as the base of the string subtype, to prevent type
	mismatches in gigi.
	(Resolve_Actuals): If the actual is an entity name, generate a
	reference before the actual is resolved and expanded, to prevent
	spurious warnings on formals of enclosing protected operations.
	(Analyze_Overloaded_Selected_Component): If type of prefix if
	class-wide, use visible components of base type.
	(Resolve_Selected_Component): Ditto.
	(Resolve_Short_Circuit): Detect case of pragma Assert argument
	evaluating to False, and issue warning message.

	* usage.adb: Add lines for -gnatw.a and -gnatw.A

From-SVN: r130838

exp_intr.adb (Expand_Dispatching_Constructor_Call): Add missing support for generic dispatching constructor calls in which we need...

2007-12-06  Javier Miranda  <miranda@adacore.com>

	* exp_intr.adb (Expand_Dispatching_Constructor_Call): Add missing
	support for generic dispatching constructor calls in which we need to
	locate the tag of a secondary dispatch table associated with an
	interface type to properly dispatch the call.
	(Expand_N_Attribute_Reference [case Address],
	Expand_Dispatching_Constructor_Call, Expand_Unc_Deallocation): Fix
	handling of VM targets.

From-SVN: r130837

2007-12-06  Pascal Obry  <obry@adacore.com>

	* expect.c (__gnat_kill) [WIN32]: Implement the SIGINT signal on
	Windows. This signal is used by gnatmake to kill child processes for
	example.

From-SVN: r130836

exp_disp.ads, [...] (Default_Prim_Op_Position): Primitive _Disp_Requeue occupies dispatch table slot number 15.

2007-12-06  Hristian Kirtchev  <kirtchev@adacore.com>
	    Javier Miranda  <miranda@adacore.com>

	* exp_disp.ads, exp_disp.adb (Default_Prim_Op_Position): Primitive
	_Disp_Requeue occupies dispatch table slot number 15. Move
	_Disp_Timed_Select to slot 16.
	(Make_Disp_Requeue_Body, Make_Disp_Requeue_Spec): New routines which
	generate the spec and body of _Disp_Reqeueue.
	(Make_DT): Build and initialize the second dispatch table.
	Handle initialization of RC_Offset when the parent
	is a private type with variable size components.
	(Make_Secondary_DT): Complete documentation. Add support to
	initialize the second dispatch table.
	(Make_Tags): Generate the tag of the second dispatch table.
	(Register_Primitive): Add support to register primitives in the
	second dispatch table.

From-SVN: r130835

2007-12-06  Hristian Kirtchev  <kirtchev@adacore.com>
	    Ed Schonberg  <schonberg@adacore.com>

	* exp_ch9.adb (Expand_N_Asynchronous_Select,
	Expand_N_Conditional_Entry_Call, Expand_N_Timed_Entry_Call): Code and
	comment reformatting.
	(Set_Privals): Inherit aliased flag from formal. From code reading.
	(Build_Simple_Entry_Call): Out parameters of an access type are passed
	by copy and initialized from the actual. This includes entry parameters.
	(Expand_N_Requeue_Statement): Reimplement in order to handle both Ada 95
	and Ada 2005 models of requeue.
	(Null_Statements): Still connsider do-end block null if it contains
	Unreferenced and Warnings pragmas.
	(Expand_N_Accept_Statement): Do not optimize away null do end if
	dispatching policy is other than defaulted.
	(Expand_N_Timed_Entry_Call): When the triggering statement is a
	dispatching call, manually analyze the delay statement.
	(Find_Parameter_Type): Move subprogram to Sem_Util.

From-SVN: r130834

exp_ch8.ads, [...] (Expand_N_Subprogram_Renaming_Declaration): In the case where the renamed subprogram is a dereference...

2007-12-06  Gary Dismukes  <dismukes@adacore.com>

	* exp_ch8.ads, exp_ch8.adb (Expand_N_Subprogram_Renaming_Declaration):
	In the case where the renamed subprogram is a dereference, call
	Force_Evaluation on the prefix.

From-SVN: r130833

exp_ch7.adb (Expand_N_Package_Body): Replace occurrence of attribute Is_Complation_Unit by Is_Library_Level_Entity...

2007-12-06  Javier Miranda  <miranda@adacore.com>
	    Ed Schonberg  <schonberg@adacore.com>

	* exp_ch7.adb (Expand_N_Package_Body): Replace occurrence of attribute
	Is_Complation_Unit by Is_Library_Level_Entity in the code
	that decides if the static dispatch tables need to be built.
	(Wrap_Transient_Declaration): Do not generate a finalization call if
	this is a renaming declaration and the renamed object is a component
	of a controlled type.

From-SVN: r130832

	* exp_ch4.adb (Expand_N_Attribute_Reference, Displace_Allocator_Pointer,
	Expand_Allocator_Expression): Take into account VM_Target

	* exp_ch5.adb (Expand_N_Extended_Return_Statement): Do not use
	secondary stack when VM_Target /= No_VM

From-SVN: r130831

2007-12-06  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch3.adb (Predefined_Primitive_Bodies): Generate the body of
	predefined primitive _Disp_Requeue.
	(Make_Predefined_Primitive_Specs): Create the spec for predefined
	primitive _Disp_Requeue.
	(Make_Predefined_Primitive_Specs/Predefined_Primitive_Bodies): Set the
	type of formal Renamed_Eq to Entity_Id (instead of Node_Id).
	(Make_Predefined_Primitive_Specs): Spec of "=" needed if the parent is
	an interface type. In case of limited interfaces we now declare all the
	predefined primitives associated with synchronized interfaces as
	abstract.
	(Predef_Spec_Or_Body): For interface types generate abstract subprogram
	declarations.
	(Predefined_Primitive_Bodies): Add body of "=" if the parent of the
	tagged type is an interface type and there is no user-defined equality
	function.
	Add also bodies of predefined primitives associated with synchronized
	interfaces.
	(Freeze_Record_Type): Do not build bodies of predefined primitives of
	interface types because they are now defined abstract.
	Add missing documentation.
	(Expand_Record_Controller): Update occurrence of Related_Interface
	to Related_Type.
	(Build_Offset_To_Top_Functions): Do nothing in case of VM.
	(Expand_N_Object_Declaration): Take into account VM_Target when handling
	class wide interface object declaration.
	(Expand_Previous_Access_Type): Do not create a duplicate master entity
	if the access type already has one.
	(Expand_N_Object_Declaration): Defend against attempt to validity check
	generic types. Noticed for -gnatVcf specified with previous errors.

From-SVN: r130830

2007-12-06  Ed Schonberg  <schonberg@adacore.com>

	* expander.adb: Take into account N_Subprogram_Renaming_Declaration

From-SVN: r130829

2007-12-06  Ed Schonberg  <schonberg@adacore.com>

	* exp_aggr.adb (Build_Record_Aggr_Code): If there is an aggregate for a
	limited ancestor part, initialize controllers of enclosing record
	before expanding ancestor aggregate.
	(Gen_Assign): If a component of the aggregate is box-initialized, add
	code to call Initialize if the component is controlled, and explicit
	assignment of null if the component is an access type.

	Handle properly aggregates for limited types that appear in object
	declarations when the aggregate contains controlled values such as
	protected types.
	When expanding limited aggregates into individual components, do not
	call Adjust on controlled components that are limited.

From-SVN: r130828

2007-12-06  Geert Bosch  <bosch@adacore.com>

	* eval_fat.adb (Decompose_Int): Handle argument of zero.
	(Compose): Remove special casing of zero.
	(Exponent): Likewise.
	(Fraction): Likewise.
	(Machine): Likewise.
	(Decompose): Update comment.

From-SVN: r130827

2007-12-06  Vincent Celier  <celier@adacore.com>

	* errout.adb (Output_Source_Line): Do not keep a trailing space after
	the source line number if the source line is empty.

From-SVN: r130826

2007-12-06  Hristian Kirtchev  <kirtchev@adacore.com>

	* einfo.ads, einfo.adb: Flag 232 is now Implemented_By_Entry.
	(Implemented_By_Entry, Set_Implemented_By_Entry): New routines.
	(Write_Entry_Flags): Add an entry for Implemented_By_Entry.
	(Renamed_In_Spec): New flag
	(Has_Pragma_Inline_Always): New flag
	Add missing doc for pragma Obsolescent_Warning
	Add missing doc for 17 additional unused flags (230-247)
	(Is_Derived_Type): Remove condition "not Is_Generic_Type".
	Alphabetize with clauses.
	Separate Is_Thunk and Has_Thunks flags
	(Write_Entity_Flags): Add forgotten entry for Has_Thunks
	(Related_Interface): Renamed to Related_Type.
	(Has_Thunks/Set_Has_Thunks): Subprograms of new attribute.
	(Set_Is_Flag): Restrict the assertion.

From-SVN: r130825

2007-12-06  Bob Duff  <duff@adacore.com>

	* clean.adb (Usage): Add line for -aP
	(Check_Version_And_Help): Change Check_Version_And_Help to be generic,
	with a parameter "procedure Usage", instead of passing a pointer to a
	procedure. This is to eliminate trampolines (since the Usage procedure
	is often nested in a main procedure, and it would be inconvenient to
	unnest it).

	* g-comlin.adb (For_Each_Simple_Switch): Change For_Each_Simple_Switch
	to be generic, with a parameter "procedure Callback (...)", instead of
	passing a pointer to a procedure. This is to eliminate trampolines
	(since the Callback procedure is usually nested).

	* gnatfind.adb, switch.adb, switch.ads, gnatlink.adb, gnatls.adb, 
	gnatname.adb, gnatxref.adb, gnatchop.adb, gprep.adb, gnatbind.adb
	(Check_Version_And_Help): Change Check_Version_And_Help to be generic.

	* g-pehage.adb (Compute_Edges_And_Vertices, Build_Identical_Key_Sets):
	Use the generic Heap_Sort_G instead of Heap_Sort_A.

From-SVN: r130824

2007-12-06  Robert Dewar  <dewar@adacore.com>

	* checks.adb: Fix optimization problem with short-circuited form

From-SVN: r130823

2007-12-06  Robert Dewar  <dewar@adacore.com>

	* back_end.adb: Recognize -fno-inline

From-SVN: r130822

2007-12-06  Vincent Celier  <celier@adacore.com>

	* opt.ads: Indicate what flags are used by the Project Manager,
	gprbuild and gprclean.
	(Opt.Follow_Links_For_Dirs): New flag
	(Warn_On_Assertion_Failure): New flag
	(Wide_Character_Encoding_Method_Specified): New flag
	(Suppress_All_Inlining): New switch set by -fno-inline
	(Real_VMS_Target): New flag
	New pragma Fast_Math

From-SVN: r130821

2007-12-06  Robert Dewar  <dewar@adacore.com>

	* atree.adb (Flag231..Flag247): New functions
	(Set_Flag231..Set_Flag247): New procedures
	(Basic_Set_Convention): Rename Set_Convention to be
	Basic_Set_Convention
	(Nkind_In): New functions
	Remove Atree.Delete_Tree/Delete_Node and Nlist.Delete_List

	* exp_ch6.adb (Expand_Call): Use new flag Has_Pragma_Inline_Always
	instead
	 of obsolete function Is_Always_Inlined
	(Register_Predefined_DT_Entry): Initialize slots of the second
	secondary dispatch table.
	Remove Atree.Delete_Tree/Delete_Node and Nlist.Delete_List
	(Expand_N_Function_Call): Remove special provision for stack checking.

	* exp_util.ads, exp_util.adb (Is_Predefined_Dispatching_Operation):
	Include _Disp_Requeue in the list of predefined operations.
	(Find_Interface_ADT): Modified to fulfill the new specification.
	Remove Atree.Delete_Tree/Delete_Node and Nlist.Delete_List

	* par-ch4.adb, nlists.ads, nlists.adb: 
	Remove Atree.Delete_Tree/Delete_Node and Nlist.Delete_List

	* sinfo.ads, sinfo.adb: (Nkind_In): New functions
	Fix location of flag for unrecognized pragma message

	* sem_ch7.adb: Use Nkind_In

From-SVN: r130820

	* a-tifiio.adb
	(Put_Int64): Use Put_Digit to advance Pos. This fixes a case where
	the second or later Scaled_Divide would omit leading zeroes,
	resulting in too few digits produced and a Layout_Error as result.
	(Put): Initialize Pos.

From-SVN: r130819

2007-12-06  Robert Dewar  <dewar@adacore.com>
	    Ed Schonberg  <schonberg@adacore.com>

	* a-ngcoty.adb: New pragma Fast_Math

	* opt.adb: New pragma Fast_Math

	* par-prag.adb: 
	Add Implemented_By_Entry to the list of pragmas which do not require any
	special processing.
	(Favor_Top_Level): New pragma.
	New pragma Fast_Math

	* exp_attr.adb: Move Wide_[Wide_]Image routines to Exp_Imgv
	(Expand_N_Attribute_Reference, Displace_Allocator_Pointer,
	Expand_Allocator_Expression): Take into account VM_Target
	(Expand_Attribute, case 'Identity):  Handle properly the case where
	the prefix is a task interface.
	New pragma Fast_Math

	* par.adb (Next_Token_Is): New function
	(P_Pragma): Add Skipping parameter
	(U_Left_Paren): New procedure
	(U_Right_Paren): New procedure
	New pragma Fast_Math

	* par-ch10.adb (P_Subunit): Unconditional msg for missing ) after
	subunit
	New pragma Fast_Math

	* sem_prag.adb: Add significance value to table Sig_Flag for pragma
	Implemented_By_Entry.
	(Analyze_Pragma): Add case for Ada 2005 pragma Implemented_By_Entry.
	(Set_Inline_Flags): Do not try to link pragma Inline onto chain of rep
	items, since it can apply to more than one overloadable entity. Set
	new flag Has_Pragma_Inline_Always for Inline_Always case.
	(Analyze_Pragma, case Complex_Representation): Improve error message.
	(Analyze_Pragma, case Assert): When assertions are disabled build the
	rewritten code with Sloc of expression rather than pragma, so new
	warning about failing is not deleted.
	(Analyze_Pragma): Allow pragma Preelaborable_Initialization to apply to
	protected types and update error message to reflect that. Test whether
	the protected type is allowed for the pragma (an error is issued if the
	type has any entries, or components that do not have preelaborable
	initialization).
	New pragma Fast_Math
	(Analyze_Pragma, case No_Return): Handle generic instance

	* snames.h, snames.ads, snames.adb: 
	Add new predefined name for interface primitive _Disp_Requeue.
	New pragma Fast_Math

	* a-tags.ads, a-tags.adb: New calling sequence for
	String_To_Wide_[Wide_]String
	(Secondary_Tag): New subprogram.

	* exp_imgv.ads, exp_imgv.adb: Move Wide_[Wide_]Image routines here
	from Exp_Attr
	New calling sequence for String_To_Wide_[Wide_]String
	(Expand_Image_Attribute): Major rewrite. New calling sequence avoids
	the use of the secondary stack for image routines.

	* a-except-2005.adb, s-wchstw.ads, s-wchstw.adb, s-wwdenu.adb: New
	calling sequence for String_To_Wide_[Wide_]String

	* par-ch3.adb (P_Declarative_Items): Recognize use of Overriding in
	Ada 95 mode
	(P_Unknown_Discriminant_Part_Opt): Handle missing parens gracefully
	Remove Atree.Delete_Tree/Delete_Node and Nlist.Delete_List

	* par-ch6.adb (P_Subprogram): Recognize use of Overriding in Ada 95 mode
	(P_Formal_Part): Use Skipping parameter in P_Pragma call
	to improve error recovery

	* par-util.adb (Next_Token_Is): New function
	(Signal_Bad_Attribute): Use new Namet.Is_Bad_Spelling_Of function

	* par-ch2.adb (Skip_Pragma_Semicolon): Do not resynchronize to
	semicolon if missing
	(P_Pragma): Implement new Skipping parameter
	Remove Atree.Delete_Tree/Delete_Node and Nlist.Delete_List
	Fix location of flag for unrecognized pragma message

	* par-tchk.adb (U_Left_Paren): New procedure
	(U_Right_Paren): New procedure

From-SVN: r130818

2007-12-06  Robert Dewar  <dewar@adacore.com>

	* a-textio.adb, a-textio.ads: 
	Extensive changes to private part for wide character encoding

	* a-witeio.ads, a-witeio.adb, a-ztexio.ads, a-ztexio.adb
	(Look_Ahead): Fix mishandling of encoded sequences
	Move declaration of Wch_Con to private part (should not be visible)

	* ali.adb (Scan_ALI): Set default encoding method to brackets instead of
	UTF-8. Probably this is never used, but if it is, brackets is
	clearly correct.

	* bindgen.adb (Get_WC_Encoding): New procedure to properly handle
	setting wide character encoding for no main program case and when
	encoding is specified using -W?
	Initialize stack limit of environment task if stack limit method of
	stack checking is enabled.
	(Gen_Adainit_Ada): Use Get_WC_Encoding to output encoding method
	(Gen_Adainit_C): Use Get_WC_Encoding to output encoding method
	(Get_Main_Unit_Name): New function.
	(Gen_Adainit_Ada): Add call to main program for .NET when needed.
	(Gen_Output_File): Set Bind_Main_Program to True for .NET

	* bindusg.adb: Add line for -Wx switch

	* s-wchcon.adb, s-wchcon.ads: (Is_Start_Of_Encoding): New function
	Add comments
	Add new useful constant WC_Longest_Sequences

	* switch-b.adb: Clean up handling of -Wx switch
	For -gnatWx, set Wide_Character_Encoding_Method_Specified

	* switch-c.adb: -gnatg activates warning on assertion errors
	For -gnatWx, set Wide_Character_Encoding_Method_Specified

	* s-wchcon.adb: (Is_Start_Of_Encoding): New function

From-SVN: r130817

2007-12-06  Jose Ruiz  <ruiz@adacore.com>

	* adaint.h: (__gnat_plist_init): Not defined for RTX.

	* initialize.c (__gnat_initialize): Do not call __gnat_plist_init for
	RTX systems.

	* Makefile.in: Add new files s-tasinf-linux.ads and s-tasinf-linux.adb.
	(LIBGNAT_TARGET_PAIRS, MISCLIB, THREADSLIB,
	EXTRA_GNATRTL_NONTASKING_OBJS, EXTRA_GNATRTL_TASKING_OBJS,
	GNATLIB_SHARED for RTX run time): Use the versions required by RTX.

	* mingw32.h: 
	Do not define GNAT_UNICODE_SUPPORT for RTX since it is not supported.

	* sysdep.c (winflush_function for RTX): Procedure that does nothing
	since we only have problems with Windows 95/98, which are not
	supported by RTX.
	(__gnat_ttyname): Return the empty string on Nucleus, just as
	done on vxworks.

From-SVN: r130816

2007-12-06  Robert Dewar  <dewar@adacore.com>

	* sem_ch5.adb, s-taskin.adb, a-ciorma.adb, a-coorma.adb, a-cohama.adb, 
	a-cihama.adb, g-awk.adb, 
	s-inmaop-posix.adb: Update handling of assigned value/unreferenced
	warnings

	* exp_smem.adb: Update handling of assigned value/unreferenced warnings

	* sem.adb: Update handling of assigned value/unreferenced warnings

	* a-exexpr-gcc.adb: Add a pragma warnings off for boolean return

	* lib-xref.ads: Improve documentation for k xref type

	* lib-xref.adb: 
	Update handling of assigned value/unreferenced warnings
	(Generate_Reference): Warning for reference to entity for which a
	pragma Unreferenced has been given should be unconditional.
	If the entity is a discriminal, mark the original
	discriminant as referenced.

	* sem_warn.ads, sem_warn.adb
	(Check_One_Unit): Test Renamed_In_Spec to control giving warning for
	no entities referenced in package
	(Check_One_Unit): Don't give message about no entities referenced in
	a package if a pragma Unreferenced has appeared.
	Handle new warning flag -gnatw.a/-gnatw.A
	Update handling of assigned value/unreferenced warnings

	* atree.h: Add flags up to Flag247
	(Flag231): New macro.

From-SVN: r130815

2007-12-06  Eric Botcazou  <ebotcazou@adacore.com>
	    Bob Duff  <duff@adacore.com>
	    Tristan Gingold  <gingold@adacore.com>

	* system-linux-ia64.ads, system-freebsd-x86.ads, system-lynxos-ppc.ads, 
	system-lynxos-x86.ads, system-linux-x86_64.ads, system-tru64.ads, 
	system-aix.ads, system-vxworks-sparcv9.ads, system-solaris-x86.ads, 
	system-irix-o32.ads, system-irix-n32.ads, system-hpux.ads, 
	system-vxworks-m68k.ads, system-linux-x86.ads, system-vxworks-mips.ads, 
	system-solaris-sparc.ads, system-solaris-sparcv9.ads, system-vms.ads, 
	system-mingw.ads, system-vms-zcx.ads, system-vxworks-ppc.ads, 
	system-vxworks-arm.ads, system-darwin-x86.ads, system.ads,
	system-vms_64.ads, system-darwin-ppc.ads, system-vxworks-x86.ads, 
	system-linux-ppc.ads, system-linux-hppa.ads, system-hpux-ia64.ads,
	system-vms-ia64.ads (Stack_Check_Limits): New target parameter.
	(Always_Compatible_Rep): New flag to control trampolines globally.
	(Dynamic_Trampolines_Used): New flag for implementing the
	No_Implicit_Dynamic_Code restriction more correctly (not yet used,
	and not yet set correctly for some targets).

	* s-taprop-vxworks.adb: Use stack limit method of stack checking.
	Simply indirectly call s-stchop when a task is created.

	* ali.ads: 
	New flag added: Stack_Check_Switch_Set which is set when '-fstack-check'
	appears as an argument (entries A) in an ALI file.

	* fe.h (Stack_Check_Limits): Declare new target parameter.
	(Check_Implicit_Dynamic_Code_Allowed): New procedure.

	* init.c: Declare __gnat_set_stack_limit_hook for VxWorks kernel RTS.
	This variable is declared in C to be sure not subject to elaboration
	code.
	(__gnat_map_signal, VxWorks): In kernel mode, map SIGILL to
	Storage_Error.

	* targparm.ads, targparm.adb (Stack_Check_Limits): New parameter.
	(Always_Compatible_Rep, Dynamic_Trampolines_Used): New parameters.

	* s-stchop.ads: Add comments.

	* s-stchop-vxworks.adb: Package almost fully rewritten to use stack
	limit method of stack checking.

	* s-stchop-limit.ads: New file.

From-SVN: r130814

2007-12-06  Robert Dewar  <dewar@adacore.com>

	* s-osinte-lynxos-3.ads, s-osinte-hpux.ads, s-osinte-solaris-posix.ads, 
	s-osinte-freebsd.ads, s-osinte-lynxos.ads, s-osinte-tru64.ads, 
	s-osinte-mingw.ads, s-osinte-aix.ads, s-osinte-hpux-dce.ads, 
	s-osinte-irix.ads, s-osinte-solaris.ads, s-intman-vms.adb,
	s-osinte-vms.ads, s-osinte-vxworks6.ads, s-osinte-vxworks.ads,
	s-auxdec.ads, s-auxdec-vms_64.ads, s-osinte-darwin.ads, 
	s-taprop-vms.adb, s-interr-sigaction.adb, s-osinte-linux-hppa.ads, 
	i-vxwork-x86.ads, s-tpopde-vms.ads: Add missing pragma Convention C
	for subprogram pointers.

	* g-ctrl_c.adb: New file.

	* g-ctrl_c.ads (Install_Handler): New body.

	* freeze.adb (Freeze_Subprogram): Use new flag Has_Pragma_Inline_Always
	instead of obsolete function Is_Always_Inlined.
	(Freeze_Entity): check for tagged type in imported C subprogram
	(Freeze_Entity): check for 8-bit boolean in imported C subprogram
	(Freeze_Entity): check for convention Ada subprogram pointer in
	imported C subprogram.
	(Freeze_Fixed_Point_Type): In the case of a base type where the low
	bound would be chopped off and go from negative to zero, force
	Loval_Excl_EP to be the same as Loval_Incl_EP (the included lower
	bound) so that the size computation for the base type will take
	negative values into account.

From-SVN: r130813

2007-12-06  Pascal Obry  <obry@adacore.com>

	* adaint.c (__gnat_pthread_setaffinity_np): New routine. A dummy
	 version is provided for older GNU/Linux distribution not
	 supporting thread affinity sets.
	
	* s-osinte-linux.ads (SC_NPROCESSORS_ONLN): New constant for sysconf
	call.
	(bit_field): New packed boolean type used by cpu_set_t.
	(cpu_set_t): New type corresponding to the C type with
	the same name. Note that on the Ada side we use a bit
	field array for the affinity mask. There is not need
	for the C macro for setting individual bit.
	(pthread_setaffinity_np): New imported routine.
	
	* s-taprop-linux.adb (Enter_Task): Check that the CPU affinity mask is
	no null.
	(Create_Task): Set the processor affinity mask if information
	is present.
	
	* s-tasinf-linux.ads, s-tasinf-linux.adb: New files.

From-SVN: r130812

	* Makefile.tpl (CFLAGS_FOR_TARGET): Add -g.
	(CXXFLAGS_FOR_TARGET): Add -O2 -g.
	* Makefile.in: Regenerate.

From-SVN: r130811

i386.c (ix86_rtx_costs): Check op0 for ZERO_EXTEND when computing costs for widening multiplication.

        * config/i386/i386.c (ix86_rtx_costs) [MULT]: Check op0 for
        ZERO_EXTEND when computing costs for widening multiplication.

From-SVN: r130809