2004-10-26 Cyrille Comar <comar@act-europe.fr>
Vasiliy Fofanov <fofanov@act-europe.fr>
Vincent Celier <celier@gnat.com>
* gnat_ugn.texi: Generalize "finding memory problems" section into a
"memory management issues" section and document some of the useful
memory pools provided as part of the GNAT library.
Remove "virtual" from declaration of A::method2 in
the simple example of Ada/C++ mixed system.
Library Projects may be virtually extended: their virtual extensions
are not Library Projects.
Added section on extending project hierarchies.
From-SVN: r89678
2004-10-26 Eric Botcazou <ebotcazou@act-europe.fr>
* trans.c (call_to_gnu): For an (in-)out parameter passed by reference
whose type is a constructed subtype of an aliased object with an
unconstrained nominal subtype, convert the actual to the constructed
subtype before taking its address.
From-SVN: r89676
2004-10-26 Pascal Obry <obry@gnat.com>
* tracebak.c (IS_BAD_PTR): Use IsBadCodePtr on Win32 to check for ptr
validity (process must have read access). Set to 0 in all other cases.
(STOP_FRAME): Now check for ptr validity to avoid a segmentation
violation on Win32.
(VALID_STACK_FRAME): Check for ptr validity on Win32 to avoid a
segmentation violation.
From-SVN: r89675
2004-10-26 Thomas Quinot <quinot@act-europe.fr>
Ed Schonberg <schonberg@gnat.com>
* sem_util.adb (Is_Aliased_View): Defend against the case where this
subprogram is called with a parameter that is not an object name. This
situation arises for some cases of illegal code, which is diagnosed
later, and in this case it is wrong to call Is_Aliased, as that might
cause a compiler crash.
(Explain_Limited_Type): Refine previous fix to include
inherited components of derived types, to provide complete information.
* exp_ch9.adb (Set_Privals): Set the Ekind of the actual object that
is the prival for a protected object.
It is necessary to mark this entity as a variable, in addition to
flagging it as Aliased, because Sem_Util.Is_Aliased_View has been
modified to avoid checking the Aliased flag on entities that are not
objects. (Checking that flag for non-objects is erroneous and could
lead to a compiler crash).
From-SVN: r89674
2004-10-26 Ed Schonberg <schonberg@gnat.com>
* sem_elab.adb (Check_Elab_Call): Do not check a call that does not
appear in the code for the main unit. Dependencies among units in the
context of the main unit are established when those other units are
compiled. Otherwise spurious elaboration constraints can generate
incorrect elaboration circularities.
From-SVN: r89673
2004-10-26 Ed Schonberg <schonberg@gnat.com>
* sem_ch6.adb (Analyze_Subprogram_Body): If body is a subunit for a
different kind of stub (possibly wrong name for file), do not check
for conformance.
(Uses_Secondary_Stack): New subsidiary to Build_Body_To_Inline. If body
includes call to some function that returns an unconstrained type, do
not inline.
From-SVN: r89671
2004-10-26 Ed Schonberg <schonberg@gnat.com>
* sem_ch3.adb (Complete_Private_Subtype): If the full view is a task
or protected type with discriminants, do not constrain the
corresponding record type if the subtype declaration has no
discriminant constraints. This can be the case in source code, or in
the subtype declaration created to rename an actual type within an
instantiation.
From-SVN: r89670
2004-10-26 Cyrille Comar <comar@act-europe.fr>
* sem_ch13.adb (Analyze_Attribute_Definition_Clause, case
'Storage_Pool): enhance, document & limit detection of non-sharable
internal pools.
* impunit.adb: Make System.Pool_Global and System.Pool_Local visible.
* s-pooglo.ads: Add more documentation now that this pool is properly
documented.
From-SVN: r89669
2004-10-26 Ed Schonberg <schonberg@gnat.com>
Javier Miranda <miranda@gnat.com>
* sem_ch12.adb (In_Main_Context): Predicate to determine whether the
current instance appears within a unit that is directly in the context
of the main unit.
Used to determine whether the body of the instance should be analyzed
immediately after its spec, to make its subprogram bodies available
for front-end inlining.
(Analyze_Formal_Array_Type): Cleanup condition that checks that range
constraint is not allowed on the component type (AARM 12.5.3(3))
From-SVN: r89667
2004-10-26 Ed Schonberg <schonberg@gnat.com>
* sem_ch10.adb (Optional_Subunit): If file of expected subunit is
empty, post message on stub.
From-SVN: r89666
2004-10-26 Ed Schonberg <schonberg@gnat.com>
* sem_attr.adb (Resolve_Attribute, case 'Access): Apply proper
accessibility check to prefix that is a protected operation.
From-SVN: r89665
2004-10-26 Robert Dewar <dewar@gnat.com>
* s-bitops.adb (Bit_Eq): Remove redundant check.
* s-bitops.ads: Minor comment updates
Change some occurrences of Address to System.Address
* s-carsi8.ads: Fix minor cut-and-paste error in comments
From-SVN: r89664
2004-10-26 Robert Dewar <dewar@gnat.com>
* s-arit64.adb: (Le3): New function, used by Scaled_Divide
(Sub3): New procedure, used by Scaled_Divide
(Scaled_Divide): Substantial rewrite, avoid duplicated code, and also
correct more than one instance of failure to propagate carries
correctly.
(Double_Divide): Handle overflow case of largest negative number
divided by minus one.
* s-arit64.ads (Double_Divide): Document that overflow can occur in
the case of a quotient value out of range.
Fix comments.
From-SVN: r89663
2004-10-26 Vincent Celier <celier@gnat.com>
* prj-nmsc.adb (Language_Independent_Check): Do not forbid virtual
extension of library projects.
* prj-part.adb: If env var ADA_PROJECT_PATH is not defined, project
path defaults to ".:<prefix>/lib/gnat".
(Parse): For an extending all project, allow direct import of a project
that is virtually extended.
* prj-proc.adb (Imported_Or_Extended_Project_From): If a project with
the specified name is directly imported, return its ID. Otherwise, if
an extension of this project is imported, return the ID of the
extension.
From-SVN: r89662
2004-10-26 Vincent Celier <celier@gnat.com>
* prj-env.adb: (Contains_ALI_Files): New Boolean function
(Ada_Objects_Path.Add): For a library project, add to the object path
the library directory only if there is no object directory or if the
library directory contains ALI files.
(Set_Ada_Paths.Add.Recursive_Add): Ditto
From-SVN: r89661
2004-10-27 Andreas Krebbel <krebbel@de.ibm.com>
patch originally created by Kelley Cook <kcook@gcc.gnu.org>
PR middle-end/14684
* opts.c (OPT_fprofile_generate): Default to -funroll-loops
to match -fprofile-use.
Co-Authored-By: Kelley Cook <kcook@gcc.gnu.org>
From-SVN: r89659
2004-10-26 Robert Dewar <dewar@gnat.com>
* lib-xref.adb (Generate_Reference): Don't complain about reference to
entry parameter if pragma Unreferenced set, since we do not properly
handle the case of multiple parameters.
From-SVN: r89657
2004-10-26 Pascal Obry <obry@gnat.com>
* init.c (__gnat_error_handler) [Win32]: Instead of trying to read the
memory before the faulting page we properly test the process read
access for this address using appropriate Win32 routine.
(HPUX sections): guard with "__hpux__" instead of "hpux".
From-SVN: r89656
2004-10-26 Thomas Quinot <quinot@act-europe.fr>
* g-os_lib.ads, g-os_lib.adb (Set_Executable, Set_Writable,
Set_Read_Only): New subprograms.
These new routines allow the user to set or unset the Owner execute
and Owner write permission flags on a file.
* makegpr.adb, mlib.adb, mlib-prj.adb: Use
GNAT.OS_Lib.Set_Executable instead of rolling our own.
From-SVN: r89654
2004-10-26 Thomas Quinot <quinot@act-europe.fr>
* exp_dist.adb (Build_General_Calling_Stubs): New formal parameter
RACW_Type, used in the PolyORB version.
Rename RCI_Info to RCI_Locator, for consistency between the PolyORB
version and the GARLIC version.
* snames.ads, snames.adb, s-parint.ads, s-parint.adb:
Rename RCI_Info to RCI_Locator for better consistency between the
GARLIC and PolyORB versions of the distributed systems annex.
(DSA_Implementation_Name): This enumeration lists the possible
implementations of the Partition Communication Subsystem for the
Distributed Systems Annex (DSA). The three available implementations
are the dummy stub implementation (No_DSA), and two versions based on
two different distribution runtime libraries: GARLIC and PolyORB. Both
the GARLIC PCS and the PolyORB PCS are part of the GLADE distribution
technology.
Change the literal GLADE_DSA to GARLIC_DSA to accurately describe
that organization.
* rtsfind.ads: Rename RCI_Info to RCI_Locator for better consistency
between the GARLIC and PolyORB versions of the distributed systems
annex.
Remove RE_Unbounded_Reclaim_Pool since it is unused.
From-SVN: r89652
2004-10-26 Ed Schonberg <schonberg@gnat.com>
Eric Botcazou <ebotcazou@act-europe.fr>
* exp_ch6.adb (Expand_Actuals): If the actual for an in-out parameter
is aliased and is a by_reference type, do not pass by copy.
(Expand_N_Function_Call) <Rhs_Of_Assign_Or_Decl>: New function to
detect whether the call is in the right side of an assignment or
the expression of an object declaration. Recurse on component
association within aggregates.
Call it in the condition that determines whether the temporary is
necessary for correct stack-checking.
From-SVN: r89651
2004-10-26 Robert Dewar <dewar@gnat.com>
* exp_ch4.adb (Expand_N_Op_Eq): Make sure we expand a loop for array
compares if the component is atomic.
* exp_ch5.adb (Expand_Assign_Array): Make sure we expand a loop for
array assignment if the component type is atomic.
From-SVN: r89650
2004-10-26 Ed Schonberg <schonberg@gnat.com>
* exp_aggr.adb (Safe_Component): An aggregate component that is an
unchecked conversion is safe for in-place use if the expression of the
conversion is safe.
(Expand_Array_Aggregate): An aggregate that initializes an allocator may
be expandable in place even if the aggregate does not come from source.
(Convert_Array_Aggr_In_Allocator): New procedure to initialize the
designated object of an allocator in place, rather than building it
first on the stack. The previous scheme forces a full copy of the array,
and may be altogether unsusable if the size of the array is too large
for stack allocation.
From-SVN: r89649
2004-10-26 Eric Botcazou <ebotcazou@act-europe.fr>
* decl.c (gnat_to_gnu_field): Use the type of the inner object for a
JM type only if its size matches that of the wrapper. When a size is
prescribed and the field is not aliased, remove the wrapper of a JM
type only if the size is not greater than that of the packed array.
(gnat_to_gnu_entity): Change the extension of packed array wrappers
from LJM to JM.
From-SVN: r89647
2004-10-26 Vincent Celier <celier@gnat.com>
* clean.adb (Delete): Do not output warnings when in quiet output and
not in verbose mode.
(Force_Deletions): New Boolean flag, defaulted to False
(Delete): Only delete a file if it is writable, and when
Force_Deletions is True.
(Parse_Cmd_Line): New switch -f: set Force_Deletions to True
(Usage): Line for new switch -f
(Clean_Directory): Use GNAT.OS_Lib.Set_Writable instead of rolling our
own.
From-SVN: r89646
2004-10-26 Ed Schonberg <schonberg@gnat.com>
* checks.adb (Expr_Known_Valid): If floating-point validity checks are
enabled, check the result of unary and binary operations when the
expression is the right-hand side of an assignment.
From-SVN: r89645
2004-10-26 Gary Dismukes <dismukes@gnat.com>
* a-exexpr.adb (Setup_Key): Change initial value to 16#DEAD#, for
compatibility with type Unwind_Word on 16-bit targets such as AAMP.
From-SVN: r89643
2004-10-26 Olivier Hainque <hainque@act-europe.fr>
Nicolas Setton <setton@act-europe.fr>
* expect.c, adaint.c, link.c, sysdep.c (unix sections): Guard with
"__unix__" instead of "unix".
The latter is implicitly defined by gcc3.2 but not by gcc >= 3.4, so the
sections were just mistakenly ignored. The former is
implicitely defined by gcc2.8, gcc3.2 and gcc3.4.
Update #ifdef preprocessor macro to detect the symbol __hpux__ instead
of hpux. This prevents an unwanted definition of the symbol
convert_addresses in adaint.o.
From-SVN: r89642
2004-10-26 Pascal Obry <obry@gnat.com>
* s-parame-mingw.adb (Default_Stack_Size): Add some comments.
* s-taprop-mingw.adb (Create_Task): Set initial stack size to 1024. On
Windows only the initial thread stack size can be set so it is good to
start we a low stack size.
The OS will adjust the size as needed.
From-SVN: r89641
2004-10-26 Olivier Hainque <hainque@act-europe.fr>
* s-parame-linux.adb (Minimum_Stack_Size): Adjust to return 12K
instead of 8K, to reflect the real potential needs for stack-checking
in the ZCX case.
From-SVN: r89640
2004-10-26 Nicolas Setton <setton@act-europe.fr>
* mlib-tgt-darwin.adb: New file.
* mlib-tgt-tru64.adb, mlib-tgt-aix.adb, mlib-tgt-irix.adb,
mlib-tgt-hpux.adb, mlib-tgt-linux.adb, mlib-tgt-solaris.adb,
mlib-tgt-vms-alpha.adb, mlib-tgt-vms-ia64.adb,
mlib-tgt-mingw.adb, mlib-tgt-vxworks.adb (Archive_Indexer_Options): New
subprogram body.
* Makefile.in: Add support for building shared libraries under Darwin.
(EXTRA_GNATRTL_NONTASKING_OBJS, ppc-vxworks): Add s-vxwexc.o, containing
the low level EH init subprogram to be called from __gnat_initialize.
* mlib-tgt.ads, mlib-tgt.adb (Archive_Indexer_Options): New subprogram,
indicates which options to pass to the archive indexer.
* mlib-utl.adb: Add support for calling ranlib with additional
options. This is needed for instance under Mac OS X.
(Ranlib_Options): New global variable, used to store the potential
options to pass to ranlib.
(Ar): Use Ranlib_Options when spawning ranlib.
(Initialize): Set the value of ranlib option.
From-SVN: r89639
Thomas Quinot <quinot@act-europe.fr>
* g-socthi-vms.adb, g-socthi-mingw.adb, g-socthi-vxworks.ads:
(C_Writev): Change MSG_Forced_Flags to Constants.MSG_Forced_Flags as
there is no use of GNAT.Sockets.Constants.
Remove remaining pragma Import for C_Write
Remove C_Read and C_Write from internal implementation unit
GNAT.Sockets.Thin, as their usage for sockets is non-portable (using
the read and write functions from the system runtime library is fine
on UNIX but won't work under Windows).
* g-socket.adb: (Abort_Selector): Use C_Send instead of C_Write.
(Check_Selector): Use C_Recv instead of C_Read.
Selectors are the GNAT.Sockets abstraction to perform a select()
call on a set of descriptors. To allow abortion of an ongoing
select operation, some data is written to a dedicated socket that
is always monitored.
Under Windows, the write and read library functions cannot operate
on sockets, so we need to use send and recv instead, which is portable
across all supported platforms.
* g-socthi.ads: Remove C_Read and C_Write from internal implementation
unit GNAT.Sockets.Thin, as their usage for sockets is non-portable
(using the read and write functions from the system runtime library is
fine on UNIX but won't work under Windows).
From-SVN: r89638
* testsuite/lib/libffi-db.exp (load_gcc_lib): New function.
(libffi_exit): New function.
(libffi_init): Build the testglue wrapper if needed.
From-SVN: r89636
PR c++/18093
* search.c (current_scope): Return the innermost non-block scope,
not the innermost non-block, non-namespace scope.
(at_namespace_scope_p): Adjust accordingly.
(dfs_accessible_post): Do not pass namespaces to is_friend.
(dfs_walk_once_accessible_r): Likewise.
* decl.c (grokvardecl): Adjust call to current_scope.
(build_enumerator): Likewise.
* parser.c (cp_parser_using_declaration): Likewise.
(cp_parser_direct_declarator): Use at_namespace_scope_p instead of
current_scope.
(cp_parser_class_head): Adjust call to current_scope.
* name-lookup.c (do_namespace_alias): Set the DECL_CONTEXT for the
alias.
PR c++/18020
* pt.c (tusbst_copy_and_build): Resolve enumeration constants to
their underlying values.
PR c++/18161
* typeck.c (build_binary_op): Honor build_type, even when in a
template.
PR c++/18093
* g++.dg/lookup/ns2.C: New test.
PR c++/18020
* g++.dg/template/enum4.C: New test.
PR c++/18161
* g++.dg/template/expr1.C: New test.
From-SVN: r89627
Arnaud Charlet
Cyrille Comar
Vincent Celier
Eric Botcazou
Pascal Obry
Thomas Quinot
Ed Schonberg
Andreas Krebbel
Robert Dewar
Ulrich Weigand
Kazu Hirata
Matthew Gingell
Gary Dismukes
Geert Bosch
Olivier Hainque
Nicolas Setton
Paolo Carlini
Richard Earnshaw
Nathan Sidwell
Zack Weinberg
Andreas Schwab
Mark Mitchell
Geoffrey Keating
Aaron W. LaFramboise