2003-11-17 Jerome Guitton <guitton@act-europe.fr>

	* 5zthrini.adb: Remove the call to Init_RTS at elaboration, as it is
	already called in System.Threads.

	* 5ztiitho.adb (Initialize_Task_Hooks): Remove the registration of the
	environment task, as it has been moved to System.Threads.Initialization.

2003-11-17  Arnaud Charlet  <charlet@act-europe.fr>

	* adaint.c (__gnatlib_install_locks): Only reference
	__gnat_install_locks on VMS, since other platforms can avoid using
	--enable-threads=gnat

2003-11-17  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* ada-tree.h: (TYPE_IS_PACKED_ARRAY_TYPE_P): New macro.

	* decl.c (gnat_to_gnu_entity, case E_Array_Subtype): Set
	TYPE_PACKED_ARRAY_TYPE_P.
	(validate_size): Do not verify size if TYPE_IS_PACKED_ARRAY_TYPE_P.

	Part of PR ada/12806
	* utils.c (float_type_for_precision): Renamed from float_type_for_size.
	Use GET_MODE_PRECISION instead of GET_MODE_BITSIZE.

2003-11-17  Vincent Celier  <celier@gnat.com>

	* gnatchop.adb (Error_Msg): New Boolean parameter Warning, defaulted
	to False.
	Do not set exit status to Failure when Warning is True.
	(Gnatchop): Make errors "no compilation units found" and
	"no source files written" warnings only.

	* make.adb (Gnatmake): When using a project file, set
	Look_In_Primary_Dir to False.
	(Configuration_Pragmas_Switch): Check for Global_Configuration_Pragmas
	and Local_Configuration_Pragmas in the project where they are declared
	not an extending project which might have inherited them.

	* osint.adb (Locate_File): If Name is already an absolute path, do not
	look for a directory.

	* par-ch10.adb (P_Compilation_Unit): If source contains no token, and
	-gnats (Check_Syntax) is used, issue only a warning, not an error.

	* prj.adb (Register_Default_Naming_Scheme): Add new component Project
	in objects of type Variable_Value.

	* prj.ads: (Variable_Value): New component Project

	* prj-nmsc.adb (Ada_Check.Warn_If_Not_Sources): No warning if source
	is in a project extended by Project.

	* prj-proc.adb (Add_Attributes): New parameter Project. Set component
	Project of Variable_Values to this new parameter value.
	(Expression): Set component Project of Variable_Values.
	(Process_Declarative_Items): Call Add_Attributes with parameter Project.
	Set the component Project in array elements.

2003-11-17  Sergey Rybin  <rybin@act-europe.fr>

	* errout.adb: (Initialize): Add initialization for error nodes.

	* sem_ch12.adb (Initialize): Add missing initializations for
	Exchanged_Views and Hidden_Entities.

2003-11-17  Ed Schonberg  <schonberg@gnat.com>

	* sem_ch12.adb (Copy_Generic_Node): Preserve entity when copying an
	already instantiated tree for use in subsequent inlining.
	(Analyze_Associations, Instantiate_Formal_Subprogram,
	Instantiate_Object): improve error message for mismatch in
	instantiations.

	* sem_ch6.adb (Build_Body_To_Inline): Major cleanup to handle
	instantiations of subprograms declared in instances.

2003-11-17  Javier Miranda  <miranda@gnat.com>

	* sem_ch4.adb (Analyze_Allocator): Previous modification must be
	executed only under the Extensions_Allowed flag.

2003-11-17  Robert Dewar  <dewar@gnat.com>

	* a-exexda.adb (Address_Image): Fix documentation to indicate leading
	zeroes suppressed.
	(Address_Image): Fix bug of returning 0x instead of 0x0
	Minor reformatting (function specs).

	* einfo.ads: Minor fix for documentation of Is_Bit_Packed_Array
	(missed case of 33-63)

	* freeze.adb, sem_ch13.adb: Properly check size of packed bit array

	* s-thread.adb: Add comments for pragma Restriction

	* exp_aggr.adb, g-debuti.adb, par-ch4.adb, sem_aggr.adb,
	sem_ch6.adb, sprint.adb, xref_lib.adb: Minor reformatting

2003-11-17  Ed Falis  <falis@gnat.com>

	* s-thread.adb: Added No_Tasking restriction for this implementation.

2003-11-17  Emmanuel Briot  <briot@act-europe.fr>

	* xref_lib.adb (Parse_Identifier_Info): Add handling of generic
	instanciation references in the parent type description.

2003-11-17  GNAT Script  <nobody@gnat.com>

	* Make-lang.in: Makefile automatically updated


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@73672 138bc75d-0d04-0410-961f-82ee72b054a4

29 files changed, 2510 insertions, 1525 deletions

diff --git a/gcc/ada/5zthrini.adb b/gcc/ada/5zthrini.adb
index 0b49e0eee24..e0bffe09d6c 100644
--- a/gcc/ada/5zthrini.adb
+++ b/gcc/ada/5zthrini.adb
@@ -115,7 +115,6 @@ package body System.Threads.Initialization is
 
 begin
    Initialize_Task_Hooks;
-   Init_RTS;
 
    --  Register the environment task
    declare
diff --git a/gcc/ada/5ztiitho.adb b/gcc/ada/5ztiitho.adb
index f5c60043dee..196c6a89fce 100644
--- a/gcc/ada/5ztiitho.adb
+++ b/gcc/ada/5ztiitho.adb
@@ -46,7 +46,4 @@ procedure Initialize_Task_Hooks is
    Result : OSI.STATUS;
 begin
    taskCreateHookAdd (Register'Access);
-   --  Register the environment task
-   Result := Register (OSI.taskIdSelf);
-   pragma Assert (Result /= -1);
 end Initialize_Task_Hooks;
diff --git a/gcc/ada/Make-lang.in b/gcc/ada/Make-lang.in
index 3f0dae802bf..dc7dccd1436 100644
--- a/gcc/ada/Make-lang.in
+++ b/gcc/ada/Make-lang.in
@@ -1216,13 +1216,15 @@ ada/a-chlat1.o : ada/ada.ads ada/a-charac.ads ada/a-chlat1.ads \
 ada/a-except.o : ada/ada.ads ada/a-except.ads ada/a-except.adb \
    ada/a-excach.adb ada/a-exexda.adb ada/a-exexpr.adb ada/a-exextr.adb \
    ada/a-excpol.adb ada/a-exstat.adb ada/a-unccon.ads ada/a-uncdea.ads \
-   ada/interfac.ads ada/system.ads ada/s-assert.ads ada/s-exctab.ads \
-   ada/s-except.ads ada/s-mastop.ads ada/s-secsta.ads ada/s-soflin.ads \
-   ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb \
-   ada/s-traceb.ads ada/s-traent.ads ada/s-unstyp.ads ada/unchconv.ads 
+   ada/interfac.ads ada/system.ads ada/s-exctab.ads ada/s-except.ads \
+   ada/s-mastop.ads ada/s-secsta.ads ada/s-soflin.ads ada/s-stache.ads \
+   ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb ada/s-traceb.ads \
+   ada/s-traent.ads ada/s-traent.adb ada/s-unstyp.ads ada/unchconv.ads 
 
-ada/a-ioexce.o : ada/ada.ads ada/a-ioexce.ads ada/system.ads \
-   ada/s-exctab.ads ada/s-stalib.ads ada/unchconv.ads 
+ada/a-ioexce.o : ada/ada.ads ada/a-except.ads ada/a-ioexce.ads \
+   ada/system.ads ada/s-exctab.ads ada/s-exctab.adb ada/s-htable.ads \
+   ada/s-soflin.ads ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads \
+   ada/s-stoele.adb ada/s-traent.ads ada/unchconv.ads 
 
 ada/ada.o : ada/ada.ads ada/system.ads 
 
@@ -1230,78 +1232,93 @@ ada/ali-util.o : ada/ada.ads ada/a-except.ads ada/a-uncdea.ads ada/ali.ads \
    ada/ali-util.ads ada/ali-util.adb ada/alloc.ads ada/binderr.ads \
    ada/casing.ads ada/debug.ads ada/gnat.ads ada/g-htable.ads \
    ada/g-os_lib.ads ada/g-string.ads ada/gnatvsn.ads ada/hostparm.ads \
-   ada/interfac.ads ada/lib.ads ada/namet.ads ada/opt.ads ada/osint.ads \
-   ada/output.ads ada/rident.ads ada/system.ads ada/s-assert.ads \
-   ada/s-crc32.ads ada/s-exctab.ads ada/s-htable.ads ada/s-htable.adb \
-   ada/s-memory.ads ada/s-rident.ads ada/s-soflin.ads ada/s-stache.ads \
-   ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb ada/s-traent.ads \
-   ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads ada/table.adb \
-   ada/tree_io.ads ada/types.ads ada/unchconv.ads ada/unchdeal.ads 
+   ada/interfac.ads ada/lib.ads ada/namet.ads ada/namet.adb ada/opt.ads \
+   ada/osint.ads ada/output.ads ada/rident.ads ada/system.ads \
+   ada/s-crc32.ads ada/s-crc32.adb ada/s-exctab.ads ada/s-exctab.adb \
+   ada/s-htable.ads ada/s-htable.adb ada/s-memory.ads ada/s-rident.ads \
+   ada/s-secsta.ads ada/s-soflin.ads ada/s-stache.ads ada/s-stalib.ads \
+   ada/s-stoele.ads ada/s-stoele.adb ada/s-traent.ads ada/s-unstyp.ads \
+   ada/s-wchcon.ads ada/table.ads ada/table.adb ada/tree_io.ads \
+   ada/types.ads ada/unchconv.ads ada/unchdeal.ads ada/widechar.ads 
 
 ada/ali.o : ada/ada.ads ada/a-except.ads ada/a-uncdea.ads ada/ali.ads \
    ada/ali.adb ada/alloc.ads ada/butil.ads ada/casing.ads ada/debug.ads \
    ada/fname.ads ada/gnat.ads ada/g-htable.ads ada/g-os_lib.ads \
    ada/g-string.ads ada/gnatvsn.ads ada/hostparm.ads ada/namet.ads \
-   ada/opt.ads ada/osint.ads ada/output.ads ada/rident.ads ada/system.ads \
-   ada/s-assert.ads ada/s-exctab.ads ada/s-htable.ads ada/s-htable.adb \
-   ada/s-memory.ads ada/s-rident.ads ada/s-soflin.ads ada/s-stache.ads \
-   ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb ada/s-traent.ads \
-   ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads ada/table.adb \
-   ada/tree_io.ads ada/types.ads ada/unchconv.ads ada/unchdeal.ads 
+   ada/namet.adb ada/opt.ads ada/osint.ads ada/output.ads ada/rident.ads \
+   ada/system.ads ada/s-exctab.ads ada/s-exctab.adb ada/s-htable.ads \
+   ada/s-htable.adb ada/s-memory.ads ada/s-rident.ads ada/s-secsta.ads \
+   ada/s-soflin.ads ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads \
+   ada/s-stoele.adb ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads \
+   ada/table.ads ada/table.adb ada/tree_io.ads ada/types.ads \
+   ada/unchconv.ads ada/unchdeal.ads ada/widechar.ads 
 
 ada/alloc.o : ada/alloc.ads ada/system.ads 
 
 ada/atree.o : ada/ada.ads ada/a-except.ads ada/a-uncdea.ads ada/alloc.ads \
    ada/atree.ads ada/atree.adb ada/casing.ads ada/debug.ads ada/einfo.ads \
-   ada/elists.ads ada/gnat.ads ada/g-htable.ads ada/g-os_lib.ads \
-   ada/g-string.ads ada/gnatvsn.ads ada/hostparm.ads ada/nlists.ads \
-   ada/opt.ads ada/output.ads ada/sinfo.ads ada/sinput.ads ada/snames.ads \
-   ada/system.ads ada/s-assert.ads ada/s-exctab.ads ada/s-htable.ads \
-   ada/s-htable.adb ada/s-imgenu.ads ada/s-memory.ads ada/s-secsta.ads \
+   ada/einfo.adb ada/elists.ads ada/elists.adb ada/gnat.ads \
+   ada/g-htable.ads ada/g-os_lib.ads ada/g-string.ads ada/gnatvsn.ads \
+   ada/hostparm.ads ada/namet.ads ada/nlists.ads ada/nlists.adb \
+   ada/opt.ads ada/output.ads ada/sinfo.ads ada/sinfo.adb ada/sinput.ads \
+   ada/snames.ads ada/stand.ads ada/system.ads ada/s-exctab.ads \
+   ada/s-htable.ads ada/s-htable.adb ada/s-imgenu.ads ada/s-memory.ads \
+   ada/s-secsta.ads ada/s-soflin.ads ada/s-stache.ads ada/s-stalib.ads \
+   ada/s-stoele.ads ada/s-stoele.adb ada/s-traent.ads ada/s-unstyp.ads \
+   ada/s-wchcon.ads ada/table.ads ada/table.adb ada/tree_io.ads \
+   ada/types.ads ada/uintp.ads ada/uintp.adb ada/unchconv.ads \
+   ada/unchdeal.ads ada/urealp.ads 
+
+ada/back_end.o : ada/ada.ads ada/a-except.ads ada/alloc.ads ada/atree.ads \
+   ada/atree.adb ada/back_end.ads ada/back_end.adb ada/casing.ads \
+   ada/debug.ads ada/einfo.ads ada/einfo.adb ada/elists.ads ada/fname.ads \
+   ada/gnat.ads ada/g-hesora.ads ada/g-htable.ads ada/g-os_lib.ads \
+   ada/g-string.ads ada/gnatvsn.ads ada/hostparm.ads ada/lib.ads \
+   ada/lib.adb ada/lib-list.adb ada/lib-sort.adb ada/namet.ads \
+   ada/nlists.ads ada/nlists.adb ada/opt.ads ada/osint.ads ada/osint-c.ads \
+   ada/output.ads ada/sinfo.ads ada/sinfo.adb ada/sinput.ads \
+   ada/sinput.adb ada/snames.ads ada/stand.ads ada/stringt.ads \
+   ada/switch.ads ada/switch-c.ads ada/system.ads ada/s-exctab.ads \
+   ada/s-htable.ads ada/s-imgenu.ads ada/s-memory.ads ada/s-secsta.ads \
    ada/s-soflin.ads ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads \
    ada/s-stoele.adb ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads \
    ada/table.ads ada/table.adb ada/tree_io.ads ada/types.ads ada/uintp.ads \
-   ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads 
-
-ada/back_end.o : ada/alloc.ads ada/atree.ads ada/back_end.ads \
-   ada/back_end.adb ada/casing.ads ada/debug.ads ada/einfo.ads \
-   ada/elists.ads ada/gnat.ads ada/g-os_lib.ads ada/g-string.ads \
-   ada/gnatvsn.ads ada/hostparm.ads ada/lib.ads ada/namet.ads \
-   ada/nlists.ads ada/opt.ads ada/osint.ads ada/osint-c.ads ada/sinfo.ads \
-   ada/sinput.ads ada/snames.ads ada/stand.ads ada/stringt.ads \
-   ada/switch.ads ada/switch-c.ads ada/system.ads ada/s-exctab.ads \
-   ada/s-stalib.ads ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads \
-   ada/types.ads ada/uintp.ads ada/unchconv.ads ada/unchdeal.ads \
+   ada/uintp.adb ada/uname.ads ada/unchconv.ads ada/unchdeal.ads \
    ada/urealp.ads 
 
 ada/bcheck.o : ada/ada.ads ada/a-except.ads ada/ali.ads ada/ali-util.ads \
-   ada/alloc.ads ada/bcheck.ads ada/bcheck.adb ada/binderr.ads \
-   ada/butil.ads ada/casing.ads ada/fname.ads ada/gnat.ads \
-   ada/g-htable.ads ada/g-os_lib.ads ada/g-string.ads ada/gnatvsn.ads \
-   ada/hostparm.ads ada/namet.ads ada/opt.ads ada/osint.ads ada/output.ads \
-   ada/rident.ads ada/system.ads ada/s-exctab.ads ada/s-htable.ads \
-   ada/s-imgenu.ads ada/s-rident.ads ada/s-secsta.ads ada/s-soflin.ads \
+   ada/ali-util.adb ada/alloc.ads ada/bcheck.ads ada/bcheck.adb \
+   ada/binderr.ads ada/butil.ads ada/casing.ads ada/debug.ads \
+   ada/fname.ads ada/gnat.ads ada/g-htable.ads ada/g-os_lib.ads \
+   ada/g-string.ads ada/gnatvsn.ads ada/hostparm.ads ada/interfac.ads \
+   ada/lib.ads ada/namet.ads ada/namet.adb ada/opt.ads ada/osint.ads \
+   ada/output.ads ada/rident.ads ada/system.ads ada/s-crc32.ads \
+   ada/s-crc32.adb ada/s-exctab.ads ada/s-htable.ads ada/s-imgenu.ads \
+   ada/s-memory.ads ada/s-rident.ads ada/s-secsta.ads ada/s-soflin.ads \
    ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb \
    ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads \
-   ada/types.ads ada/unchconv.ads ada/unchdeal.ads 
+   ada/table.adb ada/tree_io.ads ada/types.ads ada/unchconv.ads \
+   ada/unchdeal.ads ada/widechar.ads 
 
 ada/binde.o : ada/ada.ads ada/a-except.ads ada/ali.ads ada/alloc.ads \
    ada/binde.ads ada/binde.adb ada/binderr.ads ada/butil.ads \
    ada/casing.ads ada/debug.ads ada/fname.ads ada/gnat.ads \
    ada/g-htable.ads ada/g-os_lib.ads ada/g-string.ads ada/gnatvsn.ads \
-   ada/hostparm.ads ada/lib.ads ada/namet.ads ada/opt.ads ada/output.ads \
-   ada/rident.ads ada/system.ads ada/s-assert.ads ada/s-exctab.ads \
-   ada/s-htable.ads ada/s-memory.ads ada/s-rident.ads ada/s-stalib.ads \
-   ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads \
-   ada/table.adb ada/tree_io.ads ada/types.ads ada/unchconv.ads \
-   ada/unchdeal.ads 
+   ada/hostparm.ads ada/lib.ads ada/namet.ads ada/namet.adb ada/opt.ads \
+   ada/output.ads ada/rident.ads ada/system.ads ada/s-exctab.ads \
+   ada/s-htable.ads ada/s-memory.ads ada/s-rident.ads ada/s-secsta.ads \
+   ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb ada/s-traent.ads \
+   ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads ada/table.adb \
+   ada/tree_io.ads ada/types.ads ada/unchconv.ads ada/unchdeal.ads \
+   ada/widechar.ads 
 
 ada/binderr.o : ada/ada.ads ada/a-except.ads ada/alloc.ads ada/binderr.ads \
-   ada/binderr.adb ada/butil.ads ada/gnat.ads ada/g-string.ads \
-   ada/gnatvsn.ads ada/hostparm.ads ada/namet.ads ada/opt.ads \
-   ada/output.ads ada/system.ads ada/s-exctab.ads ada/s-stalib.ads \
-   ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads \
-   ada/types.ads ada/unchconv.ads ada/unchdeal.ads 
+   ada/binderr.adb ada/butil.ads ada/debug.ads ada/gnat.ads \
+   ada/g-os_lib.ads ada/g-string.ads ada/gnatvsn.ads ada/hostparm.ads \
+   ada/namet.ads ada/opt.ads ada/output.ads ada/system.ads \
+   ada/s-exctab.ads ada/s-memory.ads ada/s-stalib.ads ada/s-traent.ads \
+   ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads ada/table.adb \
+   ada/tree_io.ads ada/types.ads ada/unchconv.ads ada/unchdeal.ads 
 
 ada/bindgen.o : ada/ada.ads ada/a-except.ads ada/ali.ads ada/alloc.ads \
    ada/binde.ads ada/bindgen.ads ada/bindgen.adb ada/butil.ads \
@@ -1309,60 +1326,79 @@ ada/bindgen.o : ada/ada.ads ada/a-except.ads ada/ali.ads ada/alloc.ads \
    ada/g-hesora.ads ada/g-htable.ads ada/g-os_lib.ads ada/g-string.ads \
    ada/gnatvsn.ads ada/hostparm.ads ada/namet.ads ada/opt.ads \
    ada/osint.ads ada/osint-b.ads ada/output.ads ada/rident.ads \
-   ada/system.ads ada/s-assert.ads ada/s-exctab.ads ada/s-htable.ads \
-   ada/s-memory.ads ada/s-rident.ads ada/s-secsta.ads ada/s-soflin.ads \
-   ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb \
-   ada/s-strops.ads ada/s-sopco3.ads ada/s-sopco4.ads ada/s-sopco5.ads \
-   ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads \
-   ada/table.adb ada/targparm.ads ada/tree_io.ads ada/types.ads \
-   ada/uintp.ads ada/unchconv.ads ada/unchdeal.ads 
+   ada/system.ads ada/s-exctab.ads ada/s-htable.ads ada/s-memory.ads \
+   ada/s-rident.ads ada/s-secsta.ads ada/s-soflin.ads ada/s-stache.ads \
+   ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb ada/s-strops.ads \
+   ada/s-sopco3.ads ada/s-sopco4.ads ada/s-sopco5.ads ada/s-traent.ads \
+   ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads ada/table.adb \
+   ada/targparm.ads ada/tree_io.ads ada/types.ads ada/uintp.ads \
+   ada/unchconv.ads ada/unchdeal.ads 
 
 ada/bindusg.o : ada/bindusg.ads ada/bindusg.adb ada/gnat.ads \
    ada/g-os_lib.ads ada/g-string.ads ada/osint.ads ada/output.ads \
    ada/system.ads ada/s-exctab.ads ada/s-stalib.ads ada/s-unstyp.ads \
    ada/types.ads ada/unchconv.ads ada/unchdeal.ads 
 
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 ada/g-hesora.o : ada/gnat.ads ada/g-hesora.ads ada/g-hesora.adb \
    ada/system.ads 
@@ -1893,9 +2249,10 @@ ada/g-htable.o : ada/gnat.ads ada/g-htable.ads ada/g-htable.adb \
 
 ada/g-os_lib.o : ada/ada.ads ada/a-except.ads ada/gnat.ads \
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 ada/g-speche.o : ada/gnat.ads ada/g-speche.ads ada/g-speche.adb \
    ada/system.ads 
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 ada/gnat.o : ada/gnat.ads ada/system.ads 
 
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-   ada/types.ads ada/unchconv.ads ada/unchdeal.ads 
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 ada/output.o : ada/gnat.ads ada/g-os_lib.ads ada/g-string.ads \
    ada/output.ads ada/output.adb ada/system.ads ada/s-exctab.ads \
@@ -2143,26 +2577,34 @@ ada/output.o : ada/gnat.ads ada/g-os_lib.ads ada/g-string.ads \
    ada/unchdeal.ads 
 
 ada/par.o : ada/ada.ads ada/a-except.ads ada/alloc.ads ada/atree.ads \
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-   ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads ada/validsw.ads 
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 ada/prep.o : ada/ada.ads ada/a-except.ads ada/alloc.ads ada/casing.ads \
    ada/csets.ads ada/debug.ads ada/err_vars.ads ada/gnat.ads \
@@ -2170,7 +2612,7 @@ ada/prep.o : ada/ada.ads ada/a-except.ads ada/alloc.ads ada/casing.ads \
    ada/g-os_lib.ads ada/g-string.ads ada/gnatvsn.ads ada/hostparm.ads \
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-   ada/stringt.ads ada/system.ads ada/s-assert.ads ada/s-carun8.ads \
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    ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads 
 
 ada/prepcomp.o : ada/ada.ads ada/a-except.ads ada/a-uncdea.ads \
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-   ada/g-os_lib.ads ada/g-string.ads ada/gnatvsn.ads ada/hostparm.ads \
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 ada/system.o : ada/system.ads 
 
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-   ada/unchdeal.ads 
+   ada/s-exctab.ads ada/s-exctab.adb ada/s-htable.ads ada/s-soflin.ads \
+   ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb \
+   ada/s-traent.ads ada/s-unstyp.ads ada/tree_io.ads ada/tree_io.adb \
+   ada/types.ads ada/unchconv.ads ada/unchdeal.ads 
 
 ada/treepr.o : ada/ada.ads ada/a-except.ads ada/alloc.ads ada/atree.ads \
-   ada/casing.ads ada/csets.ads ada/debug.ads ada/einfo.ads ada/elists.ads \
-   ada/lib.ads ada/namet.ads ada/nlists.ads ada/output.ads \
-   ada/sem_mech.ads ada/sinfo.ads ada/sinput.ads ada/snames.ads \
-   ada/stand.ads ada/stringt.ads ada/system.ads ada/s-exctab.ads \
-   ada/s-imgenu.ads ada/s-secsta.ads ada/s-soflin.ads ada/s-stache.ads \
+   ada/atree.adb ada/casing.ads ada/csets.ads ada/debug.ads ada/einfo.ads \
+   ada/einfo.adb ada/elists.ads ada/elists.adb ada/fname.ads ada/gnat.ads \
+   ada/g-hesora.ads ada/g-htable.ads ada/g-os_lib.ads ada/g-string.ads \
+   ada/gnatvsn.ads ada/hostparm.ads ada/lib.ads ada/lib.adb \
+   ada/lib-list.adb ada/lib-sort.adb ada/namet.ads ada/nlists.ads \
+   ada/nlists.adb ada/opt.ads ada/output.ads ada/output.adb \
+   ada/sem_mech.ads ada/sinfo.ads ada/sinfo.adb ada/sinput.ads \
+   ada/sinput.adb ada/snames.ads ada/stand.ads ada/stringt.ads \
+   ada/system.ads ada/s-exctab.ads ada/s-htable.ads ada/s-imgenu.ads \
+   ada/s-memory.ads ada/s-secsta.ads ada/s-soflin.ads ada/s-stache.ads \
    ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb ada/s-traent.ads \
-   ada/s-unstyp.ads ada/table.ads ada/treepr.ads ada/treepr.adb \
-   ada/treeprs.ads ada/types.ads ada/uintp.ads ada/uname.ads \
+   ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads ada/table.adb \
+   ada/tree_io.ads ada/treepr.ads ada/treepr.adb ada/treeprs.ads \
+   ada/types.ads ada/uintp.ads ada/uintp.adb ada/uname.ads \
    ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads 
 
-ada/treeprs.o : ada/alloc.ads ada/sinfo.ads ada/system.ads \
-   ada/s-exctab.ads ada/s-stalib.ads ada/s-unstyp.ads ada/table.ads \
-   ada/treeprs.ads ada/types.ads ada/uintp.ads ada/unchconv.ads \
-   ada/unchdeal.ads ada/urealp.ads 
+ada/treeprs.o : ada/ada.ads ada/a-except.ads ada/alloc.ads ada/debug.ads \
+   ada/gnat.ads ada/g-os_lib.ads ada/g-string.ads ada/gnatvsn.ads \
+   ada/hostparm.ads ada/opt.ads ada/output.ads ada/sinfo.ads \
+   ada/system.ads ada/s-exctab.ads ada/s-memory.ads ada/s-stalib.ads \
+   ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads \
+   ada/table.adb ada/tree_io.ads ada/treeprs.ads ada/types.ads \
+   ada/uintp.ads ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads 
 
 ada/ttypef.o : ada/system.ads ada/ttypef.ads 
 
@@ -3005,39 +3857,51 @@ ada/ttypes.o : ada/get_targ.ads ada/system.ads ada/s-exctab.ads \
    ada/s-stalib.ads ada/s-unstyp.ads ada/ttypes.ads ada/types.ads \
    ada/unchconv.ads ada/unchdeal.ads 
 
-ada/types.o : ada/system.ads ada/s-assert.ads ada/s-carun8.ads \
-   ada/s-exctab.ads ada/s-stalib.ads ada/s-unstyp.ads ada/types.ads \
-   ada/types.adb ada/unchconv.ads ada/unchdeal.ads 
+ada/types.o : ada/ada.ads ada/a-except.ads ada/system.ads ada/s-carun8.ads \
+   ada/s-exctab.ads ada/s-exctab.adb ada/s-htable.ads ada/s-soflin.ads \
+   ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb \
+   ada/s-traent.ads ada/s-unstyp.ads ada/types.ads ada/types.adb \
+   ada/unchconv.ads ada/unchdeal.ads 
 
 ada/uintp.o : ada/ada.ads ada/a-except.ads ada/a-uncdea.ads ada/alloc.ads \
    ada/debug.ads ada/gnat.ads ada/g-htable.ads ada/g-os_lib.ads \
    ada/g-string.ads ada/gnatvsn.ads ada/hostparm.ads ada/opt.ads \
-   ada/output.ads ada/system.ads ada/s-assert.ads ada/s-exctab.ads \
-   ada/s-htable.ads ada/s-htable.adb ada/s-memory.ads ada/s-stalib.ads \
-   ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads \
-   ada/table.adb ada/tree_io.ads ada/types.ads ada/uintp.ads ada/uintp.adb \
+   ada/output.ads ada/system.ads ada/s-exctab.ads ada/s-htable.ads \
+   ada/s-htable.adb ada/s-memory.ads ada/s-stalib.ads ada/s-traent.ads \
+   ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads ada/table.adb \
+   ada/tree_io.ads ada/types.ads ada/uintp.ads ada/uintp.adb \
    ada/unchconv.ads ada/unchdeal.ads 
 
-ada/uname.o : ada/alloc.ads ada/atree.ads ada/casing.ads ada/einfo.ads \
-   ada/hostparm.ads ada/lib.ads ada/namet.ads ada/nlists.ads \
-   ada/output.ads ada/sinfo.ads ada/sinput.ads ada/snames.ads \
-   ada/system.ads ada/s-assert.ads ada/s-exctab.ads ada/s-stalib.ads \
-   ada/s-unstyp.ads ada/table.ads ada/types.ads ada/uintp.ads \
-   ada/uname.ads ada/uname.adb ada/unchconv.ads ada/unchdeal.ads \
-   ada/urealp.ads 
+ada/uname.o : ada/ada.ads ada/a-except.ads ada/alloc.ads ada/atree.ads \
+   ada/atree.adb ada/casing.ads ada/debug.ads ada/einfo.ads ada/einfo.adb \
+   ada/elists.ads ada/fname.ads ada/gnat.ads ada/g-hesora.ads \
+   ada/g-htable.ads ada/g-os_lib.ads ada/g-string.ads ada/gnatvsn.ads \
+   ada/hostparm.ads ada/lib.ads ada/lib.adb ada/lib-list.adb \
+   ada/lib-sort.adb ada/namet.ads ada/nlists.ads ada/nlists.adb \
+   ada/opt.ads ada/output.ads ada/sinfo.ads ada/sinfo.adb ada/sinput.ads \
+   ada/sinput.adb ada/snames.ads ada/stand.ads ada/stringt.ads \
+   ada/system.ads ada/s-exctab.ads ada/s-htable.ads ada/s-imgenu.ads \
+   ada/s-memory.ads ada/s-secsta.ads ada/s-soflin.ads ada/s-stache.ads \
+   ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb ada/s-traent.ads \
+   ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads ada/table.adb \
+   ada/tree_io.ads ada/types.ads ada/uintp.ads ada/uintp.adb ada/uname.ads \
+   ada/uname.adb ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads 
 
 ada/urealp.o : ada/ada.ads ada/a-except.ads ada/alloc.ads ada/debug.ads \
+   ada/gnat.ads ada/g-htable.ads ada/g-os_lib.ads ada/g-string.ads \
+   ada/gnatvsn.ads ada/hostparm.ads ada/opt.ads ada/output.ads \
+   ada/system.ads ada/s-exctab.ads ada/s-htable.ads ada/s-memory.ads \
+   ada/s-stalib.ads ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads \
+   ada/table.ads ada/table.adb ada/tree_io.ads ada/types.ads ada/uintp.ads \
+   ada/uintp.adb ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads \
+   ada/urealp.adb 
+
+ada/usage.o : ada/ada.ads ada/a-except.ads ada/alloc.ads ada/debug.ads \
    ada/gnat.ads ada/g-os_lib.ads ada/g-string.ads ada/gnatvsn.ads \
-   ada/hostparm.ads ada/opt.ads ada/output.ads ada/system.ads \
-   ada/s-assert.ads ada/s-exctab.ads ada/s-memory.ads ada/s-stalib.ads \
+   ada/hostparm.ads ada/namet.ads ada/opt.ads ada/osint.ads ada/output.ads \
+   ada/system.ads ada/s-exctab.ads ada/s-memory.ads ada/s-stalib.ads \
    ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads \
-   ada/table.adb ada/tree_io.ads ada/types.ads ada/uintp.ads \
-   ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads ada/urealp.adb 
-
-ada/usage.o : ada/alloc.ads ada/gnat.ads ada/g-os_lib.ads ada/g-string.ads \
-   ada/hostparm.ads ada/namet.ads ada/osint.ads ada/output.ads \
-   ada/system.ads ada/s-exctab.ads ada/s-stalib.ads ada/s-unstyp.ads \
-   ada/s-wchcon.ads ada/table.ads ada/types.ads ada/unchconv.ads \
+   ada/table.adb ada/tree_io.ads ada/types.ads ada/unchconv.ads \
    ada/unchdeal.ads ada/usage.ads ada/usage.adb 
 
 ada/validsw.o : ada/gnat.ads ada/g-string.ads ada/gnatvsn.ads \
diff --git a/gcc/ada/a-exexda.adb b/gcc/ada/a-exexda.adb
index b88d643092f..214d5348ca3 100644
--- a/gcc/ada/a-exexda.adb
+++ b/gcc/ada/a-exexda.adb
@@ -41,9 +41,8 @@ package body Exception_Data is
    -----------------------
 
    function Address_Image (A : System.Address) return String;
-   --  Returns at string of the form 0xhhhhhhhhh for 32-bit addresses
-   --  or 0xhhhhhhhhhhhhhhhh for 64-bit addresses. Hex characters are
-   --  in lower case.
+   --  Returns at string of the form 0xhhhhhhhhh for an address, with
+   --  leading zeros suppressed. Hex characters a-f are in lower case.
 
    procedure Append_Info_Nat
      (N    : Natural;
@@ -66,22 +65,19 @@ package body Exception_Data is
    --  we then use three intermediate functions :
 
    function Basic_Exception_Information
-     (X    : Exception_Occurrence)
-      return String;
+     (X : Exception_Occurrence) return String;
    --  Returns the basic exception information string associated with a
    --  given exception occurrence. This is the common part shared by both
    --  Exception_Information and Tailored_Exception_Infomation.
 
    function Basic_Exception_Traceback
-     (X    : Exception_Occurrence)
-      return String;
+     (X : Exception_Occurrence) return String;
    --  Returns an image of the complete call chain associated with an
    --  exception occurence in its most basic form, that is as a raw sequence
    --  of hexadecimal binary addresses.
 
    function Tailored_Exception_Traceback
-     (X    : Exception_Occurrence)
-      return String;
+     (X : Exception_Occurrence) return String;
    --  Returns an image of the complete call chain associated with an
    --  exception occurrence, either in its basic form if no decorator is
    --  in place, or as formatted by the decorator otherwise.
@@ -121,10 +117,11 @@ package body Exception_Data is
    begin
       P := S'Last;
       N := To_Integer (A);
-      while N /= 0 loop
+      loop
          S (P) := H (Integer (N mod 16));
          P := P - 1;
          N := N / 16;
+         exit when N = 0;
       end loop;
 
       S (P - 1) := '0';
@@ -184,8 +181,7 @@ package body Exception_Data is
    ---------------------------------
 
    function Basic_Exception_Information
-     (X    : Exception_Occurrence)
-      return String
+     (X : Exception_Occurrence) return String
    is
       Name : constant String := Exception_Name (X);
       Msg  : constant String := Exception_Message (X);
@@ -251,8 +247,7 @@ package body Exception_Data is
    -------------------------------
 
    function Basic_Exception_Traceback
-     (X    : Exception_Occurrence)
-      return String
+     (X : Exception_Occurrence) return String
    is
       Info_Maxlen : constant Natural := 35 + X.Num_Tracebacks * 19;
       --  Maximum length of the information string we are building, with :
@@ -460,8 +455,7 @@ package body Exception_Data is
    ----------------------------------
 
    function Tailored_Exception_Traceback
-     (X    : Exception_Occurrence)
-      return String
+     (X : Exception_Occurrence) return String
    is
       --  We indeed reference the decorator *wrapper* from here and not the
       --  decorator itself. The purpose of the local variable Wrapper is to
@@ -491,8 +485,7 @@ package body Exception_Data is
    ------------------------------------
 
    function Tailored_Exception_Information
-     (X    : Exception_Occurrence)
-      return String
+     (X : Exception_Occurrence) return String
    is
       --  The tailored exception information is simply the basic information
       --  associated with the tailored call chain backtrace.
diff --git a/gcc/ada/ada-tree.h b/gcc/ada/ada-tree.h
index c7574c82f2e..d7767e274e4 100644
--- a/gcc/ada/ada-tree.h
+++ b/gcc/ada/ada-tree.h
@@ -72,10 +72,14 @@ struct lang_type GTY(())
 #define TYPE_FAT_POINTER_P(NODE)  \
   (TREE_CODE (NODE) == RECORD_TYPE && TYPE_IS_FAT_POINTER_P (NODE))
 
-/* For integral types, nonzero if this is a packed array type.  Such
-   types should not be extended to a larger size.  */
+/* For integral types and array types, nonzero if this is a packed array type.
+   Such types should not be extended to a larger size.  */
 #define TYPE_PACKED_ARRAY_TYPE_P(NODE) TYPE_LANG_FLAG_0 (NODE)
 
+#define TYPE_IS_PACKED_ARRAY_TYPE_P(NODE) \
+  ((TREE_CODE (NODE) == INTEGER_TYPE || TREE_CODE (NODE) == ARRAY_TYPE) \
+   && TYPE_PACKED_ARRAY_TYPE_P (NODE))
+
 /* For INTEGER_TYPE, nonzero if this is a modular type with a modulus that
    is not equal to two to the power of its mode's size.  */
 #define TYPE_MODULAR_P(NODE) TYPE_LANG_FLAG_1 (INTEGER_TYPE_CHECK (NODE))
diff --git a/gcc/ada/adaint.c b/gcc/ada/adaint.c
index 52e00960b0e..5f4b95d5e58 100644
--- a/gcc/ada/adaint.c
+++ b/gcc/ada/adaint.c
@@ -2465,13 +2465,15 @@ __gnat_copy_attribs (char *from, char *to, int mode)
 extern void __gnat_install_locks (void (*) (void), void (*) (void));
 
 /* This function offers a hook for libgnarl to set the
-   locking subprograms for libgcc_eh. */
+   locking subprograms for libgcc_eh.
+   This is only needed on OpenVMS, since other platforms use standard
+   --enable-threads=posix option, or similar.  */
 
 void
 __gnatlib_install_locks (void (*lock) (void) ATTRIBUTE_UNUSED,
                          void (*unlock) (void) ATTRIBUTE_UNUSED)
 {
-#ifdef IN_RTS
+#if defined (IN_RTS) && defined (VMS)
   __gnat_install_locks (lock, unlock);
   /* There is a bootstrap path issue if adaint is build with this
      symbol unresolved for the stage1 compiler. Since the compiler
diff --git a/gcc/ada/decl.c b/gcc/ada/decl.c
index 41bcfa66e89..058b61e18ef 100644
--- a/gcc/ada/decl.c
+++ b/gcc/ada/decl.c
@@ -1992,6 +1992,8 @@ gnat_to_gnu_entity (Entity_Id gnat_entity, tree gnu_expr, int definition)
 	  debug_no_type_hash = 0;
 	  TYPE_CONVENTION_FORTRAN_P (gnu_type)
 	    = (Convention (gnat_entity) == Convention_Fortran);
+	  TYPE_PACKED_ARRAY_TYPE_P (gnu_type)
+	    = Is_Packed_Array_Type (gnat_entity);
 
 	  /* If our size depends on a placeholder and the maximum size doesn't
 	     overflow, use it.  */
@@ -5752,11 +5754,6 @@ validate_size (Uint uint_size,
   else
     gnat_error_node = gnat_object;
 
-  /* Don't give errors on packed array types; we'll be giving the error on
-     the type itself soon enough.  */
-  if (Is_Packed_Array_Type (gnat_object))
-    gnat_error_node = Empty;
-
   /* Return 0 if no size was specified, either because Esize was not Present or
      the specified size was zero.  */
   if (No (uint_size) || uint_size == No_Uint)
@@ -5791,11 +5788,11 @@ validate_size (Uint uint_size,
       return 0;
     }
 
-  /* If this is an integral type, the front-end has verified the size, so we
-     need not do it here (which would entail checking against the bounds).
-     However, if this is an aliased object, it may not be smaller than the
-     type of the object.  */
-  if (INTEGRAL_TYPE_P (gnu_type) && ! TYPE_PACKED_ARRAY_TYPE_P (gnu_type)
+  /* If this is an integral type or a packed array type, the front-end has
+     verified the size, so we need not do it here (which would entail
+     checking against the bounds).  However, if this is an aliased object, it
+     may not be smaller than the type of the object.  */
+  if ((INTEGRAL_TYPE_P (gnu_type) || TYPE_IS_PACKED_ARRAY_TYPE_P (gnu_type))
       && ! (kind == VAR_DECL && Is_Aliased (gnat_object)))
     return size;
 
diff --git a/gcc/ada/einfo.ads b/gcc/ada/einfo.ads
index 9a6a2d8edc5..59ff1addeb7 100644
--- a/gcc/ada/einfo.ads
+++ b/gcc/ada/einfo.ads
@@ -1660,9 +1660,9 @@ package Einfo is
 --    Is_Bit_Packed_Array (Flag122) [implementation base type only]
 --       Present in all entities. This flag is set for a packed array
 --       type that is bit packed (i.e. the component size is known by the
---       front end and is in the range 1-7, 9-15, or 17-31). Is_Packed is
---       always set if Is_Bit_Packed_Array is set, but it is possible for
---       Is_Packed to be set without Is_Bit_Packed_Array or the case of an
+--       front end and is in the range 1-7, 9-15, 17-31, or 33-63). Is_Packed
+--       is always set if Is_Bit_Packed_Array is set, but it is possible for
+--       Is_Packed to be set without Is_Bit_Packed_Array for the case of an
 --       array having one or more index types that are enumeration types
 --       with non-standard enumeration representations.
 
diff --git a/gcc/ada/errout.adb b/gcc/ada/errout.adb
index fb1142e2cd4..51832899bba 100644
--- a/gcc/ada/errout.adb
+++ b/gcc/ada/errout.adb
@@ -1408,6 +1408,12 @@ package body Errout is
          Warnings.Table (Warnings.Last).Start := Source_Ptr'First;
          Warnings.Table (Warnings.Last).Stop  := Source_Ptr'Last;
       end if;
+
+      --  Set all (???) the error nodes to Empty:
+
+      Error_Msg_Node_1 := Empty;
+      Error_Msg_Node_2 := Empty;
+
    end Initialize;
 
    -----------------
diff --git a/gcc/ada/exp_aggr.adb b/gcc/ada/exp_aggr.adb
index e2413bbd4f9..0f6c2ee0ad9 100644
--- a/gcc/ada/exp_aggr.adb
+++ b/gcc/ada/exp_aggr.adb
@@ -106,8 +106,7 @@ package body Exp_Aggr is
       Target                        : Node_Id;
       Flist                         : Node_Id   := Empty;
       Obj                           : Entity_Id := Empty;
-      Is_Limited_Ancestor_Expansion : Boolean   := False)
-      return List_Id;
+      Is_Limited_Ancestor_Expansion : Boolean   := False) return List_Id;
    --  N is an N_Aggregate or a N_Extension_Aggregate. Typ is the type
    --  of the aggregate. Target is an expression containing the
    --  location on which the component by component assignments will
@@ -175,8 +174,7 @@ package body Exp_Aggr is
       Into        : Node_Id;
       Scalar_Comp : Boolean;
       Indices     : List_Id := No_List;
-      Flist       : Node_Id := Empty)
-      return        List_Id;
+      Flist       : Node_Id := Empty) return List_Id;
    --  This recursive routine returns a list of statements containing the
    --  loops and assignments that are needed for the expansion of the array
    --  aggregate N.
@@ -207,8 +205,7 @@ package body Exp_Aggr is
       Typ    : Entity_Id;
       Target : Node_Id;
       Flist  : Node_Id := Empty;
-      Obj    : Entity_Id := Empty)
-      return   List_Id;
+      Obj    : Entity_Id := Empty) return List_Id;
    --  N is a nested (record or array) aggregate that has been marked
    --  with 'Delay_Expansion'. Typ is the expected type of the
    --  aggregate and Target is a (duplicable) expression that will
@@ -225,8 +222,7 @@ package body Exp_Aggr is
    function Make_OK_Assignment_Statement
      (Sloc       : Source_Ptr;
       Name       : Node_Id;
-      Expression : Node_Id)
-      return       Node_Id;
+      Expression : Node_Id) return Node_Id;
    --  This is like Make_Assignment_Statement, except that Assignment_OK
    --  is set in the left operand. All assignments built by this unit
    --  use this routine. This is needed to deal with assignments to
@@ -405,8 +401,7 @@ package body Exp_Aggr is
       Into        : Node_Id;
       Scalar_Comp : Boolean;
       Indices     : List_Id := No_List;
-      Flist       : Node_Id := Empty)
-      return        List_Id
+      Flist       : Node_Id := Empty) return List_Id
    is
       Loc          : constant Source_Ptr := Sloc (N);
       Index_Base   : constant Entity_Id  := Base_Type (Etype (Index));
@@ -1281,8 +1276,7 @@ package body Exp_Aggr is
       Target                        : Node_Id;
       Flist                         : Node_Id   := Empty;
       Obj                           : Entity_Id := Empty;
-      Is_Limited_Ancestor_Expansion : Boolean   := False)
-      return List_Id
+      Is_Limited_Ancestor_Expansion : Boolean   := False) return List_Id
    is
       Loc     : constant Source_Ptr := Sloc (N);
       L       : constant List_Id    := New_List;
@@ -1333,8 +1327,7 @@ package body Exp_Aggr is
          Typ     : Entity_Id;
          F       : Node_Id;
          Attach  : Node_Id;
-         Init_Pr : Boolean)
-         return    List_Id;
+         Init_Pr : Boolean) return List_Id;
       --  returns the list of statements necessary to initialize the internal
       --  controller of the (possible) ancestor typ into target and attach
       --  it to finalization list F. Init_Pr conditions the call to the
@@ -1530,8 +1523,7 @@ package body Exp_Aggr is
          Typ     : Entity_Id;
          F       : Node_Id;
          Attach  : Node_Id;
-         Init_Pr : Boolean)
-         return    List_Id
+         Init_Pr : Boolean) return List_Id
       is
          L   : constant List_Id := New_List;
          Ref : Node_Id;
@@ -2432,10 +2424,9 @@ package body Exp_Aggr is
       Typ : constant Entity_Id := Etype (N);
 
       function Flatten
-        (N    : Node_Id;
-         Ix   : Node_Id;
-         Ixb  : Node_Id)
-         return Boolean;
+        (N   : Node_Id;
+         Ix  : Node_Id;
+         Ixb : Node_Id) return Boolean;
       --  Convert the aggregate into a purely positional form if possible.
 
       function Is_Flat (N : Node_Id; Dims : Int) return Boolean;
@@ -2446,10 +2437,9 @@ package body Exp_Aggr is
       -------------
 
       function Flatten
-        (N    : Node_Id;
-         Ix   : Node_Id;
-         Ixb  : Node_Id)
-         return Boolean
+        (N   : Node_Id;
+         Ix  : Node_Id;
+         Ixb : Node_Id) return Boolean
       is
          Loc : constant Source_Ptr := Sloc (N);
          Blo : constant Node_Id    := Type_Low_Bound (Etype (Ixb));
@@ -4483,8 +4473,9 @@ package body Exp_Aggr is
    ----------------------------
 
    function Has_Default_Init_Comps (N : Node_Id) return Boolean is
-      Comps  : constant List_Id := Component_Associations (N);
-      C      : Node_Id;
+      Comps : constant List_Id := Component_Associations (N);
+      C     : Node_Id;
+
    begin
       pragma Assert (Nkind (N) = N_Aggregate
                      or else Nkind (N) = N_Extension_Aggregate);
@@ -4533,8 +4524,7 @@ package body Exp_Aggr is
       Typ    : Entity_Id;
       Target : Node_Id;
       Flist  : Node_Id   := Empty;
-      Obj    : Entity_Id := Empty)
-      return   List_Id
+      Obj    : Entity_Id := Empty) return List_Id
    is
    begin
       if Is_Record_Type (Etype (N)) then
@@ -4558,8 +4548,7 @@ package body Exp_Aggr is
    function Make_OK_Assignment_Statement
      (Sloc       : Source_Ptr;
       Name       : Node_Id;
-      Expression : Node_Id)
-      return       Node_Id
+      Expression : Node_Id) return Node_Id
    is
    begin
       Set_Assignment_OK (Name);
diff --git a/gcc/ada/freeze.adb b/gcc/ada/freeze.adb
index 68dc1776e02..812ea693e52 100644
--- a/gcc/ada/freeze.adb
+++ b/gcc/ada/freeze.adb
@@ -1817,16 +1817,19 @@ package body Freeze is
          --  fields with component clauses, where we must check the size.
          --  This is not done till the freeze point, since for fixed-point
          --  types, we do not know the size until the type is frozen.
+         --  Similar processing applies to bit packed arrays.
 
          if Is_First_Subtype (Rec) then
             Comp := First_Component (Rec);
 
             while Present (Comp) loop
                if Present (Component_Clause (Comp))
-                 and then Is_Fixed_Point_Type (Etype (Comp))
+                 and then (Is_Fixed_Point_Type (Etype (Comp))
+                             or else
+                           Is_Bit_Packed_Array (Etype (Comp)))
                then
                   Check_Size
-                    (Component_Clause (Comp),
+                    (Component_Name (Component_Clause (Comp)),
                      Etype (Comp),
                      Esize (Comp),
                      Junk);
@@ -2382,6 +2385,29 @@ package body Freeze is
                   end if;
                end if;
 
+               --  For bit-packed arrays, check the size
+
+               if Is_Bit_Packed_Array (E)
+                 and then Known_Esize (E)
+               then
+                  declare
+                     Discard : Boolean;
+                     SizC    : constant Node_Id := Size_Clause (E);
+
+                  begin
+                     --  It is not clear if it is possible to have no size
+                     --  clause at this stage, but this is not worth worrying
+                     --  about. Post the error on the entity name in the size
+                     --  clause if present, else on the type entity itself.
+
+                     if Present (SizC) then
+                        Check_Size (Name (SizC), E, Esize (E), Discard);
+                     else
+                        Check_Size (E, E, Esize (E), Discard);
+                     end if;
+                  end;
+               end if;
+
                --  Check one common case of a size given where the array
                --  needs to be packed, but was not so the size cannot be
                --  honored. This would of course be caught by the backend,
diff --git a/gcc/ada/g-debuti.adb b/gcc/ada/g-debuti.adb
index 1c1e29d7304..8e4480ab50b 100644
--- a/gcc/ada/g-debuti.adb
+++ b/gcc/ada/g-debuti.adb
@@ -39,9 +39,11 @@ package body GNAT.Debug_Utilities is
       H : constant array (0 .. 15) of Character := "0123456789ABCDEF";
       --  Table of hex digits
 
-   --------------------------
-   -- Image (address case) --
-   --------------------------
+   -----------
+   -- Image --
+   -----------
+
+   --  Address case
 
    function Image (A : Address) return Image_String is
       S : Image_String;
@@ -71,9 +73,11 @@ package body GNAT.Debug_Utilities is
       return S;
    end Image;
 
-   -------------------------
-   -- Image (string case) --
-   -------------------------
+   -----------
+   -- Image --
+   -----------
+
+   --  String case
 
    function Image (S : String) return String is
       W : String (1 .. 2 * S'Length + 2);
diff --git a/gcc/ada/gnatchop.adb b/gcc/ada/gnatchop.adb
index 3e771e5a05d..8764a86578c 100644
--- a/gcc/ada/gnatchop.adb
+++ b/gcc/ada/gnatchop.adb
@@ -207,7 +207,7 @@ procedure Gnatchop is
    -- Local subprograms --
    -----------------------
 
-   procedure Error_Msg (Message : String);
+   procedure Error_Msg (Message : String; Warning : Boolean := False);
    --  Produce an error message on standard error output
 
    procedure File_Time_Stamp (Name : C_File_Name; Time : OS_Time);
@@ -337,10 +337,13 @@ procedure Gnatchop is
    -- Error_Msg --
    ---------------
 
-   procedure Error_Msg (Message : String) is
+   procedure Error_Msg (Message : String; Warning : Boolean := False) is
    begin
       Put_Line (Standard_Error, Message);
-      Set_Exit_Status (Failure);
+
+      if not Warning then
+         Set_Exit_Status (Failure);
+      end if;
 
       if Exit_On_Error then
          raise Terminate_Program;
@@ -1687,7 +1690,7 @@ begin
 
    if Unit.Last = 0 then
       if not Write_gnat_adc then
-         Error_Msg ("no compilation units found");
+         Error_Msg ("no compilation units found", Warning => True);
       end if;
 
       goto No_Files_Written;
@@ -1739,7 +1742,7 @@ begin
    --  been written.
 
    if not Write_gnat_adc then
-      Error_Msg ("no source files written");
+      Error_Msg ("no source files written", Warning => True);
    end if;
 
    return;
diff --git a/gcc/ada/make.adb b/gcc/ada/make.adb
index d734dd54f10..5b181b65975 100644
--- a/gcc/ada/make.adb
+++ b/gcc/ada/make.adb
@@ -3001,7 +3001,8 @@ package body Make is
          if Global_Attribute_Present then
             declare
                Path : constant String :=
-                        Absolute_Path (Global_Attribute.Value, Main_Project);
+                        Absolute_Path
+                          (Global_Attribute.Value, Global_Attribute.Project);
             begin
                if not Is_Regular_File (Path) then
                   Make_Failed
@@ -3033,7 +3034,8 @@ package body Make is
          if Local_Attribute_Present then
             declare
                Path : constant String :=
-                 Absolute_Path (Local_Attribute.Value, For_Project);
+                        Absolute_Path
+                          (Local_Attribute.Value, Local_Attribute.Project);
             begin
                if not Is_Regular_File (Path) then
                   Make_Failed
@@ -3725,6 +3727,16 @@ package body Make is
                         And_Save => False);
          end if;
 
+      else
+         --  If we use a project file, we have already checked that a main
+         --  specified on the command line with directory information has the
+         --  path name corresponding to a correct source in the project tree.
+         --  So, we don't need the directory information to be taken into
+         --  account by Find_File, and in fact it may lead to take the wrong
+         --  sources for other compilation units, when there are extending
+         --  projects.
+
+         Opt.Look_In_Primary_Dir := False;
       end if;
 
       --  If the user wants a program without a main subprogram, add the
diff --git a/gcc/ada/osint.adb b/gcc/ada/osint.adb
index 28f8ed88d23..1bd39c4ea66 100644
--- a/gcc/ada/osint.adb
+++ b/gcc/ada/osint.adb
@@ -50,6 +50,11 @@ package body Osint is
    --  Standard prefix, computed dynamically the first time Relocate_Path
    --  is called, and cached for subsequent calls.
 
+   Empty  : aliased String := "";
+   No_Dir : constant String_Ptr := Empty'Access;
+   --  Used in Locate_File as a fake directory when Name is already an
+   --  absolute path.
+
    -------------------------------------
    -- Use of Name_Find and Name_Enter --
    -------------------------------------
@@ -1430,7 +1435,12 @@ package body Osint is
       Dir_Name : String_Ptr;
 
    begin
-      if T = Library then
+      --  If Name is already an absolute path, do not look for a directory
+
+      if Is_Absolute_Path (Name) then
+         Dir_Name := No_Dir;
+
+      elsif T = Library then
          Dir_Name := Lib_Search_Directories.Table (Dir);
 
       else pragma Assert (T /= Config);
diff --git a/gcc/ada/par-ch10.adb b/gcc/ada/par-ch10.adb
index 00cbd9b1569..86d47b3c2c3 100644
--- a/gcc/ada/par-ch10.adb
+++ b/gcc/ada/par-ch10.adb
@@ -300,9 +300,14 @@ package body Ch10 is
             Append_List (P_Context_Clause, Context_Items (Comp_Unit_Node));
 
          else
-            Error_Msg_SC ("compilation unit expected");
-            Cunit_Error_Flag := True;
-            Resync_Cunit;
+            if Operating_Mode = Check_Syntax and then Token = Tok_EOF then
+               Error_Msg_SC ("?file contains no compilation units");
+
+            else
+               Error_Msg_SC ("compilation unit expected");
+               Cunit_Error_Flag := True;
+               Resync_Cunit;
+            end if;
 
             --  If we are at an end of file, then just quit, the above error
             --  message was complaint enough.
diff --git a/gcc/ada/par-ch4.adb b/gcc/ada/par-ch4.adb
index d7b0afb5c59..b88c494fe63 100644
--- a/gcc/ada/par-ch4.adb
+++ b/gcc/ada/par-ch4.adb
@@ -1402,6 +1402,7 @@ package body Ch4 is
       else
          Set_Expression (Assoc_Node, P_Expression);
       end if;
+
       return Assoc_Node;
    end P_Record_Or_Array_Component_Association;
 
diff --git a/gcc/ada/prj-nmsc.adb b/gcc/ada/prj-nmsc.adb
index 5a47f8770fb..cda03eecd38 100644
--- a/gcc/ada/prj-nmsc.adb
+++ b/gcc/ada/prj-nmsc.adb
@@ -991,8 +991,8 @@ package body Prj.Nmsc is
                The_Unit_Data := Units.Table (The_Unit_Id);
 
                if Specs then
-                  if The_Unit_Data.File_Names (Specification).Project /=
-                    Project
+                  if not Check_Project
+                    (The_Unit_Data.File_Names (Specification).Project)
                   then
                      Error_Msg
                        (Project,
@@ -1001,8 +1001,8 @@ package body Prj.Nmsc is
                   end if;
 
                else
-                  if The_Unit_Data.File_Names (Com.Body_Part).Project /=
-                    Project
+                  if not Check_Project
+                    (The_Unit_Data.File_Names (Com.Body_Part).Project)
                   then
                      Error_Msg
                        (Project,
diff --git a/gcc/ada/prj-proc.adb b/gcc/ada/prj-proc.adb
index 21585af36cd..e75057a883d 100644
--- a/gcc/ada/prj-proc.adb
+++ b/gcc/ada/prj-proc.adb
@@ -56,8 +56,9 @@ package body Prj.Proc is
    --  arguments are not null string.
 
    procedure Add_Attributes
-     (Decl     : in out Declarations;
-      First    : Attribute_Node_Id);
+     (Project : Project_Id;
+      Decl    : in out Declarations;
+      First   : Attribute_Node_Id);
    --  Add all attributes, starting with First, with their default
    --  values to the package or project with declarations Decl.
 
@@ -66,21 +67,18 @@ package body Prj.Proc is
       From_Project_Node : Project_Node_Id;
       Pkg               : Package_Id;
       First_Term        : Project_Node_Id;
-      Kind              : Variable_Kind)
-      return              Variable_Value;
+      Kind              : Variable_Kind) return Variable_Value;
    --  From N_Expression project node From_Project_Node, compute the value
    --  of an expression and return it as a Variable_Value.
 
    function Imported_Or_Extended_Project_From
      (Project   : Project_Id;
-      With_Name : Name_Id)
-      return      Project_Id;
+      With_Name : Name_Id) return Project_Id;
    --  Find an imported or extended project of Project whose name is With_Name
 
    function Package_From
      (Project   : Project_Id;
-      With_Name : Name_Id)
-      return      Package_Id;
+      With_Name : Name_Id) return Package_Id;
    --  Find the package of Project whose name is With_Name
 
    procedure Process_Declarative_Items
@@ -143,8 +141,9 @@ package body Prj.Proc is
    --------------------
 
    procedure Add_Attributes
-     (Decl           : in out Declarations;
-      First          : Attribute_Node_Id)
+     (Project : Project_Id;
+      Decl    : in out Declarations;
+      First   : Attribute_Node_Id)
    is
       The_Attribute  : Attribute_Node_Id := First;
       Attribute_Data : Attribute_Record;
@@ -171,7 +170,8 @@ package body Prj.Proc is
 
                   when Single =>
                      New_Attribute :=
-                       (Kind     => Single,
+                       (Project  => Project,
+                        Kind     => Single,
                         Location => No_Location,
                         Default  => True,
                         Value    => Empty_String);
@@ -180,7 +180,8 @@ package body Prj.Proc is
 
                   when List =>
                      New_Attribute :=
-                       (Kind     => List,
+                       (Project  => Project,
+                        Kind     => List,
                         Location => No_Location,
                         Default  => True,
                         Values   => Nil_String);
@@ -225,8 +226,7 @@ package body Prj.Proc is
       From_Project_Node : Project_Node_Id;
       Pkg               : Package_Id;
       First_Term        : Project_Node_Id;
-      Kind              : Variable_Kind)
-      return              Variable_Value
+      Kind              : Variable_Kind) return Variable_Value
    is
       The_Term : Project_Node_Id := First_Term;
       --  The term in the expression list
@@ -241,6 +241,7 @@ package body Prj.Proc is
       --  Reference to the last string elements in Result, when Kind is List.
 
    begin
+      Result.Project := Project;
       Result.Location := Location_Of (First_Term);
 
       --  Process each term of the expression, starting with First_Term
@@ -536,14 +537,16 @@ package body Prj.Proc is
                              Expression_Kind_Of (The_Current_Term) = List
                            then
                               The_Variable :=
-                                (Kind     => List,
+                                (Project  => Project,
+                                 Kind     => List,
                                  Location => No_Location,
                                  Default  => True,
                                  Values   => Nil_String);
 
                            else
                               The_Variable :=
-                                (Kind     => Single,
+                                (Project  => Project,
+                                 Kind     => Single,
                                  Location => No_Location,
                                  Default  => True,
                                  Value    => Empty_String);
@@ -739,8 +742,7 @@ package body Prj.Proc is
 
    function Imported_Or_Extended_Project_From
      (Project   : Project_Id;
-      With_Name : Name_Id)
-      return      Project_Id
+      With_Name : Name_Id) return Project_Id
    is
       Data : constant Project_Data := Projects.Table (Project);
       List : Project_List          := Data.Imported_Projects;
@@ -779,8 +781,7 @@ package body Prj.Proc is
 
    function Package_From
      (Project   : Project_Id;
-      With_Name : Name_Id)
-      return      Package_Id
+      With_Name : Name_Id) return Package_Id
    is
       Data   : constant Project_Data := Projects.Table (Project);
       Result : Package_Id := Data.Decl.Packages;
@@ -1035,7 +1036,8 @@ package body Prj.Proc is
                         --  Set the default values of the attributes
 
                         Add_Attributes
-                          (Packages.Table (New_Pkg).Decl,
+                          (Project,
+                           Packages.Table (New_Pkg).Decl,
                            Package_Attributes.Table
                              (Package_Id_Of (Current_Item)).First_Attribute);
 
@@ -1260,6 +1262,8 @@ package body Prj.Proc is
 
                            Array_Elements.Table (New_Element) :=
                              Array_Elements.Table (Orig_Element);
+                           Array_Elements.Table (New_Element).Value.Project :=
+                             Project;
 
                            --  Adjust the Next link
 
@@ -1856,7 +1860,7 @@ package body Prj.Proc is
             Processed_Data.Extended_By := Extended_By;
             Processed_Data.Naming      := Standard_Naming_Data;
 
-            Add_Attributes (Processed_Data.Decl, Attribute_First);
+            Add_Attributes (Project, Processed_Data.Decl, Attribute_First);
             With_Clause := First_With_Clause_Of (From_Project_Node);
 
             while With_Clause /= Empty_Node loop
diff --git a/gcc/ada/prj.adb b/gcc/ada/prj.adb
index 04fc0e6c848..730af24c1ea 100644
--- a/gcc/ada/prj.adb
+++ b/gcc/ada/prj.adb
@@ -306,7 +306,8 @@ package body Prj is
          Element :=
            (Index => Lang,
             Index_Case_Sensitive => False,
-            Value => (Kind     => Single,
+            Value => (Project  => No_Project,
+                      Kind     => Single,
                       Location => No_Location,
                       Default  => False,
                       Value    => Default_Spec_Suffix),
@@ -341,7 +342,8 @@ package body Prj is
          Element :=
            (Index => Lang,
             Index_Case_Sensitive => False,
-            Value => (Kind     => Single,
+            Value => (Project  => No_Project,
+                      Kind     => Single,
                       Location => No_Location,
                       Default  => False,
                       Value    => Default_Body_Suffix),
diff --git a/gcc/ada/prj.ads b/gcc/ada/prj.ads
index bfb67d6d395..270cb4e8048 100644
--- a/gcc/ada/prj.ads
+++ b/gcc/ada/prj.ads
@@ -77,6 +77,10 @@ package Prj is
 
    function Empty_String return Name_Id;
 
+   type Project_Id is new Nat;
+   No_Project : constant Project_Id := 0;
+   --  Id of a Project File
+
    type String_List_Id is new Nat;
    Nil_String : constant String_List_Id := 0;
    type String_Element is record
@@ -107,6 +111,7 @@ package Prj is
    --  while processing the project tree (unknown package name).
 
    type Variable_Value (Kind : Variable_Kind := Undefined) is record
+      Project  : Project_Id := No_Project;
       Location : Source_Ptr := No_Location;
       Default  : Boolean    := False;
       case Kind is
@@ -122,7 +127,8 @@ package Prj is
    --  Default is True if the current value is the default one for the variable
 
    Nil_Variable_Value : constant Variable_Value :=
-     (Kind     => Undefined,
+     (Project  => No_Project,
+      Kind     => Undefined,
       Location => No_Location,
       Default  => False);
    --  Value of a non existing variable or array element
@@ -303,10 +309,6 @@ package Prj is
    --  Returns True if Left and Right are the same naming scheme
    --  not considering Specs and Bodies.
 
-   type Project_Id is new Nat;
-   No_Project : constant Project_Id := 0;
-   --  Id of a Project File
-
    type Project_List is new Nat;
    Empty_Project_List : constant Project_List := 0;
    --  A list of project files.
diff --git a/gcc/ada/s-thread.adb b/gcc/ada/s-thread.adb
index fe6d1f936a4..6687d28bce9 100644
--- a/gcc/ada/s-thread.adb
+++ b/gcc/ada/s-thread.adb
@@ -33,6 +33,11 @@
 
 --  This is the VxWorks version of this package
 
+pragma Restrictions (No_Tasking);
+--  The VxWorks version of this package is intended only for programs
+--  which do not use Ada tasking. This restriction ensures that this
+--  will be checked by the binder.
+
 with System.Secondary_Stack;
 
 with Unchecked_Conversion;
diff --git a/gcc/ada/sem_aggr.adb b/gcc/ada/sem_aggr.adb
index 8a7f003ced8..b72932474de 100644
--- a/gcc/ada/sem_aggr.adb
+++ b/gcc/ada/sem_aggr.adb
@@ -2202,6 +2202,10 @@ package body Sem_Aggr is
          --         C : Lim := (..., others => <>);
          --      end record;
 
+         ----------------------------
+         -- Check_Non_Limited_Type --
+         ----------------------------
+
          procedure Check_Non_Limited_Type is
          begin
             if Is_Limited_Type (Etype (Compon))
@@ -2223,6 +2227,8 @@ package body Sem_Aggr is
             end if;
          end Check_Non_Limited_Type;
 
+      --  Start of processing for Get_Value
+
       begin
          Mbox_Present := False;
 
@@ -2254,8 +2260,8 @@ package body Sem_Aggr is
                         else
                            return Expression (Parent (Compon));
                         end if;
-                     else
 
+                     else
                         Check_Non_Limited_Type;
 
                         if Present (Others_Etype) and then
@@ -2295,8 +2301,8 @@ package body Sem_Aggr is
                         else
                            Expr := Expression (Parent (Compon));
                         end if;
-                     else
 
+                     else
                         Check_Non_Limited_Type;
 
                         if Present (Next (Selector_Name)) then
@@ -2926,13 +2932,11 @@ package body Sem_Aggr is
                   Typech := Base_Type (Etype (Component));
 
                elsif Typech /= Base_Type (Etype (Component)) then
-
                   if not Box_Present (Parent (Selectr)) then
                      Error_Msg_N
                        ("components in choice list must have same type",
                         Selectr);
                   end if;
-
                end if;
 
                Next (Selectr);
diff --git a/gcc/ada/sem_ch12.adb b/gcc/ada/sem_ch12.adb
index 4a954a1dc4b..babcc70eda6 100644
--- a/gcc/ada/sem_ch12.adb
+++ b/gcc/ada/sem_ch12.adb
@@ -757,9 +757,11 @@ package body Sem_Ch12 is
       F_Copy  : List_Id)
       return    List_Id
    is
-      Actual_Types    : constant Elist_Id := New_Elmt_List;
-      Assoc           : constant List_Id  := New_List;
-      Defaults        : constant Elist_Id := New_Elmt_List;
+      Actual_Types    : constant Elist_Id  := New_Elmt_List;
+      Assoc           : constant List_Id   := New_List;
+      Defaults        : constant Elist_Id  := New_Elmt_List;
+      Gen_Unit        : constant Entity_Id := Defining_Entity
+                                                (Parent (F_Copy));
       Actuals         : List_Id;
       Actual          : Node_Id;
       Formal          : Node_Id;
@@ -985,8 +987,11 @@ package body Sem_Ch12 is
                       Defining_Identifier (Analyzed_Formal));
 
                   if No (Match) then
-                     Error_Msg_NE ("missing actual for instantiation of &",
-                        Instantiation_Node, Defining_Identifier (Formal));
+                     Error_Msg_NE
+                       ("missing actual&",
+                         Instantiation_Node, Defining_Identifier (Formal));
+                     Error_Msg_NE ("\in instantiation of & declared#",
+                         Instantiation_Node, Gen_Unit);
                      Abandon_Instantiation (Instantiation_Node);
 
                   else
@@ -1071,9 +1076,10 @@ package body Sem_Ch12 is
 
                   if No (Match) then
                      Error_Msg_NE
-                       ("missing actual for instantiation of&",
-                        Instantiation_Node,
-                        Defining_Identifier (Formal));
+                       ("missing actual&",
+                         Instantiation_Node, Defining_Identifier (Formal));
+                     Error_Msg_NE ("\in instantiation of & declared#",
+                         Instantiation_Node, Gen_Unit);
 
                      Abandon_Instantiation (Instantiation_Node);
 
@@ -1105,8 +1111,17 @@ package body Sem_Ch12 is
          end loop;
 
          if Num_Actuals > Num_Matched then
-            Error_Msg_N
-              ("unmatched actuals in instantiation", Instantiation_Node);
+            if Present (Selector_Name (Actual)) then
+               Error_Msg_NE
+                 ("unmatched actual&",
+                    Actual, Selector_Name (Actual));
+               Error_Msg_NE ("\in instantiation of& declared#",
+                    Actual, Gen_Unit);
+            else
+               Error_Msg_NE
+                 ("unmatched actual in instantiation of& declared#",
+                   Actual, Gen_Unit);
+            end if;
          end if;
 
       elsif Present (Actuals) then
@@ -4641,19 +4656,37 @@ package body Sem_Ch12 is
          else
             --  If the associated node is still defined, the entity in
             --  it is global, and must be copied to the instance.
+            --  If this copy is being made for a body to inline, it is
+            --  applied to an instantiated tree, and the entity is already
+            --  present and must be also preserved.
 
-            if Present (Get_Associated_Node (N)) then
-               if Nkind (Get_Associated_Node (N)) = Nkind (N) then
-                  Set_Entity (New_N, Entity (Get_Associated_Node (N)));
-                  Check_Private_View (N);
+            declare
+               Assoc : constant Node_Id := Get_Associated_Node (N);
+            begin
+               if Present (Assoc) then
+                  if Nkind (Assoc) = Nkind (N) then
+                     Set_Entity (New_N, Entity (Assoc));
+                     Check_Private_View (N);
+
+                  elsif Nkind (Assoc) = N_Function_Call then
+                     Set_Entity (New_N, Entity (Name (Assoc)));
+
+                  elsif (Nkind (Assoc) = N_Defining_Identifier
+                          or else Nkind (Assoc) = N_Defining_Character_Literal
+                          or else Nkind (Assoc) = N_Defining_Operator_Symbol)
+                    and then Expander_Active
+                  then
+                     --  Inlining case: we are copying a tree that contains
+                     --  global entities, which are preserved in the copy
+                     --  to be used for subsequent inlining.
 
-               elsif Nkind (Get_Associated_Node (N)) = N_Function_Call then
-                  Set_Entity (New_N, Entity (Name (Get_Associated_Node (N))));
+                     null;
 
-               else
-                  Set_Entity (New_N, Empty);
+                  else
+                     Set_Entity (New_N, Empty);
+                  end if;
                end if;
-            end if;
+            end;
          end if;
 
          --  For expanded name, we must copy the Prefix and Selector_Name
@@ -5618,6 +5651,8 @@ package body Sem_Ch12 is
       Generic_Flags.Init;
       Generic_Renamings_HTable.Reset;
       Circularity_Detected := False;
+      Exchanged_Views      := No_Elist;
+      Hidden_Entities      := No_Elist;
    end Initialize;
 
    ----------------------------
@@ -6586,8 +6621,10 @@ package body Sem_Ch12 is
 
       else
          Error_Msg_NE
-           ("missing actual for instantiation of &",
-                                 Instantiation_Node, Formal_Sub);
+           ("missing actual&", Instantiation_Node, Formal_Sub);
+         Error_Msg_NE
+           ("\in instantiation of & declared#",
+              Instantiation_Node, Scope (Analyzed_S));
          Abandon_Instantiation (Instantiation_Node);
       end if;
 
@@ -6729,8 +6766,12 @@ package body Sem_Ch12 is
 
          if No (Actual) then
             Error_Msg_NE
-              ("missing actual for instantiation of &",
+              ("missing actual&",
                Instantiation_Node, Formal_Id);
+            Error_Msg_NE
+              ("\in instantiation of & declared#",
+                 Instantiation_Node,
+                   Scope (Defining_Identifier (Analyzed_Formal)));
             Abandon_Instantiation (Instantiation_Node);
          end if;
 
@@ -6893,8 +6934,11 @@ package body Sem_Ch12 is
 
          else
             Error_Msg_NE
-              ("missing actual for instantiation of &",
-               Instantiation_Node, Formal_Id);
+              ("missing actual&",
+                Instantiation_Node, Formal_Id);
+            Error_Msg_NE ("\in instantiation of & declared#",
+              Instantiation_Node,
+                Scope (Defining_Identifier (Analyzed_Formal)));
 
             if Is_Scalar_Type
                  (Etype (Defining_Identifier (Analyzed_Formal)))
diff --git a/gcc/ada/sem_ch13.adb b/gcc/ada/sem_ch13.adb
index 8ebf0c639e8..ca9bb01355c 100644
--- a/gcc/ada/sem_ch13.adb
+++ b/gcc/ada/sem_ch13.adb
@@ -1881,7 +1881,7 @@ package body Sem_Ch13 is
       Biased  : Boolean;
 
       Max_Bit_So_Far : Uint;
-      --  Records the maximum bit position so far. If all field positoins
+      --  Records the maximum bit position so far. If all field positions
       --  are monotonically increasing, then we can skip the circuit for
       --  checking for overlap, since no overlap is possible.
 
@@ -2153,10 +2153,9 @@ package body Sem_Ch13 is
                               CC, Rectype);
                         end if;
 
-                        --  This information is also set in the
-                        --  corresponding component of the base type,
-                        --  found by accessing the Original_Record_Component
-                        --  link if it is present.
+                        --  This information is also set in the corresponding
+                        --  component of the base type, found by accessing the
+                        --  Original_Record_Component link if it is present.
 
                         Ocomp := Original_Record_Component (Comp);
 
@@ -2848,21 +2847,68 @@ package body Sem_Ch13 is
    begin
       Biased := False;
 
-      --  Immediate return if size is same as standard size or if composite
-      --  item, or generic type, or type with previous errors.
+      --  Dismiss cases for generic types or types with previous errors
 
       if No (UT)
         or else UT = Any_Type
         or else Is_Generic_Type (UT)
         or else Is_Generic_Type (Root_Type (UT))
-        or else Is_Composite_Type (UT)
-        or else (Known_Esize (UT) and then Siz = Esize (UT))
       then
          return;
 
+      --  Check case of bit packed array
+
+      elsif Is_Array_Type (UT)
+        and then Known_Static_Component_Size (UT)
+        and then Is_Bit_Packed_Array (UT)
+      then
+         declare
+            Asiz : Uint;
+            Indx : Node_Id;
+            Ityp : Entity_Id;
+
+         begin
+            Asiz := Component_Size (UT);
+            Indx := First_Index (UT);
+            loop
+               Ityp := Etype (Indx);
+
+               --  If non-static bound, then we are not in the business of
+               --  trying to check the length, and indeed an error will be
+               --  issued elsewhere, since sizes of non-static array types
+               --  cannot be set implicitly or explicitly.
+
+               if not Is_Static_Subtype (Ityp) then
+                  return;
+               end if;
+
+               --  Otherwise accumulate next dimension
+
+               Asiz := Asiz * (Expr_Value (Type_High_Bound (Ityp)) -
+                               Expr_Value (Type_Low_Bound  (Ityp)) +
+                               Uint_1);
+
+               Next_Index (Indx);
+               exit when No (Indx);
+            end loop;
+
+            if Asiz <= Siz then
+               return;
+            else
+               Error_Msg_Uint_1 := Asiz;
+               Error_Msg_NE
+                 ("size for& too small, minimum allowed is ^", N, T);
+            end if;
+         end;
+
+      --  All other composite types are ignored
+
+      elsif Is_Composite_Type (UT) then
+         return;
+
       --  For fixed-point types, don't check minimum if type is not frozen,
-      --  since type is not known till then
-      --  at freeze time.
+      --  since we don't know all the characteristics of the type that can
+      --  affect the size (e.g. a specified small) till freeze time.
 
       elsif Is_Fixed_Point_Type (UT)
         and then not Is_Frozen (UT)
@@ -2872,6 +2918,14 @@ package body Sem_Ch13 is
       --  Cases for which a minimum check is required
 
       else
+         --  Ignore if specified size is correct for the type
+
+         if Known_Esize (UT) and then Siz = Esize (UT) then
+            return;
+         end if;
+
+         --  Otherwise get minimum size
+
          M := UI_From_Int (Minimum_Size (UT));
 
          if Siz < M then
diff --git a/gcc/ada/sem_ch4.adb b/gcc/ada/sem_ch4.adb
index 1e363590e02..798a80c2403 100644
--- a/gcc/ada/sem_ch4.adb
+++ b/gcc/ada/sem_ch4.adb
@@ -338,13 +338,18 @@ package body Sem_Ch4 is
             Check_Restriction (No_Protected_Type_Allocators, N);
          end if;
 
-         if Nkind (Expression (E)) /= N_Aggregate
-           and then Is_Limited_Type (Type_Id)
+         if Is_Limited_Type (Type_Id)
            and then Comes_From_Source (N)
            and then not In_Instance_Body
          then
-            Error_Msg_N ("initialization not allowed for limited types", N);
-            Explain_Limited_Type (Type_Id, N);
+            if Extensions_Allowed
+              and then Nkind (Expression (E)) = N_Aggregate
+            then
+               null;
+            else
+               Error_Msg_N ("initialization not allowed for limited types", N);
+               Explain_Limited_Type (Type_Id, N);
+            end if;
          end if;
 
          Analyze_And_Resolve (Expression (E), Type_Id);
diff --git a/gcc/ada/sem_ch6.adb b/gcc/ada/sem_ch6.adb
index 6c9b3990328..05c0ccf5b34 100644
--- a/gcc/ada/sem_ch6.adb
+++ b/gcc/ada/sem_ch6.adb
@@ -82,11 +82,7 @@ package body Sem_Ch6 is
    --  Analyze a generic subprogram body. N is the body to be analyzed,
    --  and Gen_Id is the defining entity Id for the corresponding spec.
 
-   function Build_Body_To_Inline
-     (N         : Node_Id;
-      Subp      : Entity_Id;
-      Orig_Body : Node_Id)
-      return      Boolean;
+   procedure Build_Body_To_Inline (N : Node_Id; Subp : Entity_Id);
    --  If a subprogram has pragma Inline and inlining is active, use generic
    --  machinery to build an unexpanded body for the subprogram. This body is
    --  subsequenty used for inline expansions at call sites. If subprogram can
@@ -132,8 +128,7 @@ package body Sem_Ch6 is
 
    function Is_Non_Overriding_Operation
      (Prev_E : Entity_Id;
-      New_E  : Entity_Id)
-      return   Boolean;
+      New_E  : Entity_Id) return Boolean;
    --  Enforce the rule given in 12.3(18): a private operation in an instance
    --  overrides an inherited operation only if the corresponding operation
    --  was overriding in the generic. This can happen for primitive operations
@@ -156,8 +151,7 @@ package body Sem_Ch6 is
      (T1       : Entity_Id;
       T2       : Entity_Id;
       Ctype    : Conformance_Type;
-      Get_Inst : Boolean := False)
-      return     Boolean;
+      Get_Inst : Boolean := False) return Boolean;
    --  Check that two formal parameter types conform, checking both
    --  for equality of base types, and where required statically
    --  matching subtypes, depending on the setting of Ctype.
@@ -1142,9 +1136,7 @@ package body Sem_Ch6 is
                                 (Front_End_Inlining
                                   or else Configurable_Run_Time_Mode)))
       then
-         if Build_Body_To_Inline (N, Spec_Id, Copy_Separate_Tree (N)) then
-            null;
-         end if;
+         Build_Body_To_Inline (N, Spec_Id);
       end if;
 
       --  Now we can go on to analyze the body
@@ -1492,12 +1484,7 @@ package body Sem_Ch6 is
    -- Build_Body_To_Inline --
    --------------------------
 
-   function Build_Body_To_Inline
-     (N         : Node_Id;
-      Subp      : Entity_Id;
-      Orig_Body : Node_Id)
-      return      Boolean
-   is
+   procedure Build_Body_To_Inline (N : Node_Id; Subp : Entity_Id) is
       Decl : constant Node_Id := Unit_Declaration_Node (Subp);
       Original_Body   : Node_Id;
       Body_To_Analyze : Node_Id;
@@ -1732,7 +1719,7 @@ package body Sem_Ch6 is
       if Nkind (Decl) = N_Subprogram_Declaration
         and then Present (Body_To_Inline (Decl))
       then
-         return True;    --  Done already.
+         return;    --  Done already.
 
       --  Functions that return unconstrained composite types will require
       --  secondary stack handling, and cannot currently be inlined.
@@ -1744,64 +1731,13 @@ package body Sem_Ch6 is
       then
          Cannot_Inline
            ("cannot inline & (unconstrained return type)?", N, Subp);
-         return False;
-      end if;
-
-      --  We need to capture references to the formals in order to substitute
-      --  the actuals at the point of inlining, i.e. instantiation. To treat
-      --  the formals as globals to the body to inline, we nest it within
-      --  a dummy parameterless subprogram, declared within the real one.
-
-      Original_Body := Orig_Body;
-
-      --  Within an instance, the current tree is already the result of
-      --  a generic copy, and not what we need for subsequent inlining.
-      --  We create the required body by doing an instantiating copy, to
-      --  obtain the proper partially analyzed tree.
-
-      if In_Instance then
-         if No (Generic_Parent (Specification (N))) then
-            return False;
-
-         elsif Is_Child_Unit (Scope (Current_Scope)) then
-            return False;
-
-         elsif Scope (Current_Scope) = Cunit_Entity (Main_Unit) then
-
-            --  compiling an instantiation. There is no point in generating
-            --  bodies to inline, because they will not be used.
-
-            return False;
-
-         else
-            Body_To_Analyze :=
-              Copy_Generic_Node
-                (Generic_Parent (Specification (N)), Empty,
-                   Instantiating => True);
-         end if;
-
-      --  Case of not in an instance
-
-      else
-         Body_To_Analyze :=
-           Copy_Generic_Node (Original_Body, Empty,
-             Instantiating => False);
-      end if;
-
-      Set_Parameter_Specifications (Specification (Original_Body), No_List);
-      Set_Defining_Unit_Name (Specification (Original_Body),
-        Make_Defining_Identifier (Sloc (N), New_Internal_Name ('S')));
-      Set_Corresponding_Spec (Original_Body, Empty);
-
-      if Ekind (Subp) = E_Function then
-         Set_Subtype_Mark (Specification (Original_Body),
-           New_Occurrence_Of (Etype (Subp), Sloc (N)));
+         return;
       end if;
 
-      if Present (Declarations (Orig_Body))
-        and then Has_Excluded_Declaration (Declarations (Orig_Body))
+      if Present (Declarations (N))
+        and then Has_Excluded_Declaration (Declarations (N))
       then
-         return False;
+         return;
       end if;
 
       if Present (Handled_Statement_Sequence (N)) then
@@ -1810,12 +1746,12 @@ package body Sem_Ch6 is
               ("cannot inline& (exception handler)?",
                First (Exception_Handlers (Handled_Statement_Sequence (N))),
                Subp);
-            return False;
+            return;
          elsif
            Has_Excluded_Statement
              (Statements (Handled_Statement_Sequence (N)))
          then
-            return False;
+            return;
          end if;
       end if;
 
@@ -1827,16 +1763,36 @@ package body Sem_Ch6 is
         and then not Is_Always_Inlined (Subp)
       then
          Cannot_Inline ("cannot inline& (body too large)?", N, Subp);
-         return False;
+         return;
       end if;
 
       if Has_Pending_Instantiation then
          Cannot_Inline
            ("cannot inline& (forward instance within enclosing body)?",
              N, Subp);
-         return False;
+         return;
+      end if;
+
+      --  Within an instance, the body to inline must be treated as a nested
+      --  generic, so that the proper global references are preserved.
+
+      if In_Instance then
+         Save_Env (Scope (Current_Scope), Scope (Current_Scope));
+         Original_Body := Copy_Generic_Node (N, Empty, True);
+      else
+         Original_Body := Copy_Separate_Tree (N);
       end if;
 
+      --  We need to capture references to the formals in order to substitute
+      --  the actuals at the point of inlining, i.e. instantiation. To treat
+      --  the formals as globals to the body to inline, we nest it within
+      --  a dummy parameterless subprogram, declared within the real one.
+
+      Set_Parameter_Specifications (Specification (Original_Body), No_List);
+      Set_Defining_Unit_Name (Specification (Original_Body),
+        Make_Defining_Identifier (Sloc (N), New_Internal_Name ('S')));
+      Set_Corresponding_Spec (Original_Body, Empty);
+
       Body_To_Analyze := Copy_Generic_Node (Original_Body, Empty, False);
 
       --  Set return type of function, which is also global and does not need
@@ -1866,7 +1822,10 @@ package body Sem_Ch6 is
       Set_Body_To_Inline (Decl, Original_Body);
       Set_Ekind (Defining_Entity (Original_Body), Ekind (Subp));
       Set_Is_Inlined (Subp);
-      return True;
+
+      if In_Instance then
+         Restore_Env;
+      end if;
    end Build_Body_To_Inline;
 
    -------------------
@@ -2972,8 +2931,7 @@ package body Sem_Ch6 is
      (T1       : Entity_Id;
       T2       : Entity_Id;
       Ctype    : Conformance_Type;
-      Get_Inst : Boolean := False)
-      return     Boolean
+      Get_Inst : Boolean := False) return Boolean
    is
       Type_1 : Entity_Id := T1;
       Type_2 : Entity_Id := T2;
@@ -3475,8 +3433,7 @@ package body Sem_Ch6 is
 
    function Fully_Conformant_Expressions
      (Given_E1 : Node_Id;
-      Given_E2 : Node_Id)
-      return     Boolean
+      Given_E2 : Node_Id) return Boolean
    is
       E1 : constant Node_Id := Original_Node (Given_E1);
       E2 : constant Node_Id := Original_Node (Given_E2);
@@ -3849,8 +3806,7 @@ package body Sem_Ch6 is
 
    function Fully_Conformant_Discrete_Subtypes
      (Given_S1 : Node_Id;
-      Given_S2 : Node_Id)
-      return     Boolean
+      Given_S2 : Node_Id) return Boolean
    is
       S1 : constant Node_Id := Original_Node (Given_S1);
       S2 : constant Node_Id := Original_Node (Given_S2);
@@ -3942,8 +3898,7 @@ package body Sem_Ch6 is
 
    function Is_Non_Overriding_Operation
      (Prev_E : Entity_Id;
-      New_E  : Entity_Id)
-      return Boolean
+      New_E  : Entity_Id) return Boolean
    is
       Formal : Entity_Id;
       F_Typ  : Entity_Id;
@@ -3956,8 +3911,7 @@ package body Sem_Ch6 is
 
       function Types_Correspond
         (P_Type : Entity_Id;
-         N_Type : Entity_Id)
-         return   Boolean;
+         N_Type : Entity_Id) return Boolean;
       --  Returns true if and only if the types (or designated types
       --  in the case of anonymous access types) are the same or N_Type
       --  is derived directly or indirectly from P_Type.
@@ -4005,8 +3959,7 @@ package body Sem_Ch6 is
 
       function Types_Correspond
         (P_Type : Entity_Id;
-         N_Type : Entity_Id)
-         return   Boolean
+         N_Type : Entity_Id) return Boolean
       is
          Prev_Type : Entity_Id := Base_Type (P_Type);
          New_Type  : Entity_Id := Base_Type (N_Type);
@@ -5245,7 +5198,6 @@ package body Sem_Ch6 is
 
    function Type_Conformant (New_Id, Old_Id : Entity_Id) return Boolean is
       Result : Boolean;
-
    begin
       Check_Conformance (New_Id, Old_Id, Type_Conformant, False, Result);
       return Result;
diff --git a/gcc/ada/sprint.adb b/gcc/ada/sprint.adb
index 9d1e37a1016..277ede36059 100644
--- a/gcc/ada/sprint.adb
+++ b/gcc/ada/sprint.adb
@@ -928,6 +928,7 @@ package body Sprint is
             Set_Debug_Sloc;
             Sprint_Bar_List (Choices (Node));
             Write_Str (" => ");
+
             if Box_Present (Node) then
                Write_Str_With_Col_Check ("<>");
             else
diff --git a/gcc/ada/utils.c b/gcc/ada/utils.c
index 3a01bbee7ab..23296d59eb2 100644
--- a/gcc/ada/utils.c
+++ b/gcc/ada/utils.c
@@ -148,7 +148,7 @@ static tree merge_sizes (tree, tree, tree, int, int);
 static tree compute_related_constant (tree, tree);
 static tree split_plus (tree, tree *);
 static int value_zerop (tree);
-static tree float_type_for_size (int, enum machine_mode);
+static tree float_type_for_precision (int, enum machine_mode);
 static tree convert_to_fat_pointer (tree, tree);
 static tree convert_to_thin_pointer (tree, tree);
 static tree make_descriptor_field (const char *,tree, tree, tree);
@@ -1992,7 +1992,7 @@ gnat_type_for_size (unsigned precision, int unsignedp)
 /* Likewise for floating-point types.  */
 
 static tree
-float_type_for_size (int precision, enum machine_mode mode)
+float_type_for_precision (int precision, enum machine_mode mode)
 {
   tree t;
   char type_name[20];
@@ -2023,7 +2023,7 @@ tree
 gnat_type_for_mode (enum machine_mode mode, int unsignedp)
 {
   if (GET_MODE_CLASS (mode) == MODE_FLOAT)
-    return float_type_for_size (GET_MODE_BITSIZE (mode), mode);
+    return float_type_for_precision (GET_MODE_PRECISION (mode), mode);
   else
     return gnat_type_for_size (GET_MODE_BITSIZE (mode), unsignedp);
 }