[multiple changes]
2015-11-18 Hristian Kirtchev <kirtchev@adacore.com> * sem_util.adb (Has_Full_Default_Initialization): Perform the test for the presence of pragma Default_Initial_Condition prior to the specialized type checks. Add a missing case where the lack of a pragma argument yields full default initialization. 2015-11-18 Hristian Kirtchev <kirtchev@adacore.com> * sem_res.adb (Resolve_Entity_Name): Do not check for elaboration issues when a variable appears as the name of an object renaming declaration as this constitutes an aliasing, not a read. 2015-11-18 Ed Schonberg <schonberg@adacore.com> * checks.adb (Overlap_Check): An actual that is an aggregate cannot overlap with another actual, and no check should be generated for it. * targparm.ads: Fix typos. 2015-11-18 Pascal Obry <obry@adacore.com> * adaint.c: Routine __gnat_killprocesstree only implemented on Linux and Windows. 2015-11-18 Pascal Obry <obry@adacore.com> * g-ctrl_c.adb: Minor style fixes. From-SVN: r230523
This commit is contained in:
Arnaud Charlet
parent
287aa0ed92
commit
5904016a5c
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@ -1,3 +1,34 @@
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2015-11-18 Hristian Kirtchev <kirtchev@adacore.com>
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* sem_util.adb (Has_Full_Default_Initialization):
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Perform the test for the presence of pragma
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Default_Initial_Condition prior to the specialized type
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checks. Add a missing case where the lack of a pragma argument
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yields full default initialization.
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2015-11-18 Hristian Kirtchev <kirtchev@adacore.com>
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* sem_res.adb (Resolve_Entity_Name): Do not check
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for elaboration issues when a variable appears as the name of
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an object renaming declaration as this constitutes an aliasing,
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not a read.
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2015-11-18 Ed Schonberg <schonberg@adacore.com>
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* checks.adb (Overlap_Check): An actual that is an aggregate
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cannot overlap with another actual, and no check should be
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generated for it.
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* targparm.ads: Fix typos.
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2015-11-18 Pascal Obry <obry@adacore.com>
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* adaint.c: Routine __gnat_killprocesstree only implemented on
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Linux and Windows.
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2015-11-18 Pascal Obry <obry@adacore.com>
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* g-ctrl_c.adb: Minor style fixes.
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2015-11-18 Pascal Obry <obry@adacore.com>
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* adaint.c, s-os_lib.adb, s-os_lib.ads (Kill_Process_Tree): New.
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@ -3259,7 +3259,11 @@ void __gnat_killprocesstree (int pid, int sig_num)
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/* kill process */
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__gnat_kill (pid, sig_num, 1);
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#else
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#elif defined (__vxworks)
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/* not implemented */
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#elif defined (__linux__)
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DIR *dir;
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struct dirent *d;
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@ -3307,6 +3311,8 @@ void __gnat_killprocesstree (int pid, int sig_num)
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/* kill process */
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__gnat_kill (pid, sig_num, 1);
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#else
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__gnat_kill (pid, sig_num, 1);
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#endif
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/* Note on Solaris it is possible to read /proc/<PID>/status.
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@ -2359,9 +2359,19 @@ package body Checks is
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-- Ensure that the actual is an object that is not passed by value.
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-- Elementary types are always passed by value, therefore actuals of
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-- such types cannot lead to aliasing.
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-- such types cannot lead to aliasing. An aggregate is an object in
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-- Ada 2012, but an actual that is an aggregate cannot overlap with
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-- another actual.
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if Is_Object_Reference (Original_Actual (Actual_1))
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if Nkind (Original_Actual (Actual_1)) = N_Aggregate
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or else
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(Nkind (Original_Actual (Actual_1)) = N_Qualified_Expression
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and then Nkind (Expression (Original_Actual (Actual_1))) =
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N_Aggregate)
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then
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null;
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elsif Is_Object_Reference (Original_Actual (Actual_1))
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and then not Is_Elementary_Type (Etype (Original_Actual (Actual_1)))
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then
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Actual_2 := Next_Actual (Actual_1);
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@ -6,7 +6,7 @@
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-- --
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-- B o d y --
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-- --
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-- Copyright (C) 2002-2010, AdaCore --
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-- Copyright (C) 2002-2015, AdaCore --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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@ -39,11 +39,19 @@ package body GNAT.Ctrl_C is
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procedure C_Handler;
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pragma Convention (C, C_Handler);
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---------------
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-- C_Handler --
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---------------
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procedure C_Handler is
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begin
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Ada_Handler.all;
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end C_Handler;
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---------------------
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-- Install_Handler --
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---------------------
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procedure Install_Handler (Handler : Handler_Type) is
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procedure Internal (Handler : C_Handler_Type);
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pragma Import (C, Internal, "__gnat_install_int_handler");
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@ -7231,9 +7231,13 @@ package body Sem_Res is
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& "(SPARK RM 7.1.3(12))", N);
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end if;
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-- Check possible elaboration issues with respect to variables
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-- Check for possible elaboration issues with respect to reads of
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-- variables. The act of renaming the variable is not considered a
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-- read as it simply establishes an alias.
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if Ekind (E) = E_Variable then
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if Ekind (E) = E_Variable
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and then Nkind (Par) /= N_Object_Renaming_Declaration
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then
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Check_Elab_Call (N);
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end if;
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end if;
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@ -8852,9 +8852,41 @@ package body Sem_Util is
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-------------------------------------
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function Has_Full_Default_Initialization (Typ : Entity_Id) return Boolean is
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Arg : Node_Id;
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Comp : Entity_Id;
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Prag : Node_Id;
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begin
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-- A private type and its full view is fully default initialized when it
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-- is subject to pragma Default_Initial_Condition without an argument or
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-- with a non-null argument. Since any type may act as the full view of
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-- a private type, this check must be performed prior to the specialized
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-- tests below.
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if Has_Default_Init_Cond (Typ)
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or else Has_Inherited_Default_Init_Cond (Typ)
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then
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Prag := Get_Pragma (Typ, Pragma_Default_Initial_Condition);
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-- Pragma Default_Initial_Condition must be present if one of the
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-- related entity flags is set.
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pragma Assert (Present (Prag));
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Arg := First (Pragma_Argument_Associations (Prag));
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-- A non-null argument guarantees full default initialization
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if Present (Arg) then
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return Nkind (Arg) /= N_Null;
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-- Otherwise the missing argument defaults the pragma to "True" which
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-- is considered a non-null argument (see above).
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else
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return True;
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end if;
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end if;
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-- A scalar type is fully default initialized if it is subject to aspect
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-- Default_Value.
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@ -8911,20 +8943,6 @@ package body Sem_Util is
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elsif Is_Task_Type (Typ) then
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return True;
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end if;
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-- A private type and by extension its full view is fully default
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-- initialized if it is subject to pragma Default_Initial_Condition
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-- with a non-null argument or inherits the pragma from a parent type.
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-- Since any type can act as the full view of a private type, this check
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-- is separated from the circuitry above.
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if Has_Default_Init_Cond (Typ)
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or else Has_Inherited_Default_Init_Cond (Typ)
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then
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return
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Nkind (First (Pragma_Argument_Associations (Get_Pragma
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(Typ, Pragma_Default_Initial_Condition)))) /= N_Null;
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-- Otherwise the type is not fully default initialized
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@ -53,7 +53,7 @@
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-- 1. Configuration pragmas, that must appear at the start of the file.
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-- Any such pragmas automatically apply to any unit compiled in the
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-- presence of this system file. Only a limited set of such pragmas
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-- may appear as documented in the corresponding section below,
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-- may appear as documented in the corresponding section below.
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-- 2. Target parameters. These are boolean constants that are defined
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-- in the private part of the package giving fixed information
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@ -107,7 +107,7 @@ package Targparm is
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-- If a pragma Detect_Blocking appears, then the flag Opt.Detect_Blocking
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-- is set to True.
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-- if a pragma Suppress_Exception_Locations appears, then the flag
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-- If a pragma Suppress_Exception_Locations appears, then the flag
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-- Opt.Exception_Locations_Suppressed is set to True.
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-- If a pragma Profile with a valid profile argument appears, then
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