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opt.ads (Treat_Restrictions_As_Warnings): New switch

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2008-05-20  Robert Dewar  <dewar@adacore.com>

	* opt.ads (Treat_Restrictions_As_Warnings): New switch

	* sem_prag.adb, par-prag.adb, restrict.ads: Implement flag
	Treat_Restrictions_As_Warnings.

	* switch-c.adb: Recognize new switch -gnatr

	* usage.adb: Add line for -gnatr

From-SVN: r135632
This commit is contained in:
Robert Dewar 2008-05-20 14:47:49 +02:00 committed by Arnaud Charlet
parent 604b5bcb17
commit 23e6615e0f
6 changed files with 41 additions and 15 deletions
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5
gcc/ada/opt.ads
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@ -1108,6 +1108,11 @@ package Opt is
-- Tolerate time stamp and other consistency errors. If this flag is set to
-- True (-t), then inconsistencies result in warnings rather than errors.
Treat_Restrictions_As_Warnings : Boolean := False;
-- GNAT
-- Set True to treat pragma Restrictions as Restriction_Warnings. Set by
-- -gnatr switch.
Tree_Output : Boolean := False;
-- GNAT
-- Set to True (-gnatt) to generate output tree file

3
gcc/ada/par-prag.adb
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@ -234,7 +234,8 @@ function Prag (Pragma_Node : Node_Id; Semi : Source_Ptr) return Node_Id is
elsif Id = Name_No_Dependence then
Set_Restriction_No_Dependence
(Unit => Expr,
Warn => Prag_Id = Pragma_Restriction_Warnings);
Warn => Prag_Id = Pragma_Restriction_Warnings
or else Treat_Restrictions_As_Warnings);
end if;
Next (Arg);

17
gcc/ada/restrict.ads
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@ -6,7 +6,7 @@
-- --
-- S p e c --
-- --
-- Copyright (C) 1992-2007, Free Software Foundation, Inc. --
-- Copyright (C) 1992-2008, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
@ -277,11 +277,12 @@ package Restrict is
(P : Profile_Name;
N : Node_Id;
Warn : Boolean);
-- Sets the set of restrictions associated with the given profile
-- name. N is the node of the construct to which error messages
-- are to be attached as required. Warn is set True for the case
-- of Profile_Warnings where the restrictions are set as warnings
-- rather than legality requirements.
-- Sets the set of restrictions associated with the given profile name. N
-- is the node of the construct to which error messages are to be attached
-- as required. Warn is set True for the case of Profile_Warnings where the
-- restrictions are set as warnings rather than legality requirements, and
-- is also True for Profile if the Treat_Restrictions_As_Warnings flag is
-- set. It is false for Profile if this flag is not set.
procedure Set_Restriction
(R : All_Boolean_Restrictions;
@ -301,7 +302,9 @@ package Restrict is
(Unit : Node_Id;
Warn : Boolean);
-- Sets given No_Dependence restriction in table if not there already.
-- Warn is True if from Restriction_Warnings, False if from Restrictions.
-- Warn is True if from Restriction_Warnings, or for Restrictions if flag
-- Treat_Restrictions_As_Warnings is set. False if from Restrictions and
-- this flag is not set.
function Tasking_Allowed return Boolean;
pragma Inline (Tasking_Allowed);

16
gcc/ada/sem_prag.adb
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@ -671,7 +671,9 @@ package body Sem_Prag is
procedure Process_Restrictions_Or_Restriction_Warnings (Warn : Boolean);
-- Common processing for Restrictions and Restriction_Warnings pragmas.
-- Warn is False for Restrictions, True for Restriction_Warnings.
-- Warn is True for Restriction_Warnings, or for Restrictions if the
-- flag Treat_Restrictions_As_Warnings is set, and False if this flag
-- is not set in the Restrictions case.
procedure Process_Suppress_Unsuppress (Suppress_Case : Boolean);
-- Common processing for Suppress and Unsuppress. The boolean parameter
@ -4770,7 +4772,8 @@ package body Sem_Prag is
-- Set the corresponding restrictions
Set_Profile_Restrictions (Ravenscar, N, Warn => False);
Set_Profile_Restrictions
(Ravenscar, N, Warn => Treat_Restrictions_As_Warnings);
end Set_Ravenscar_Profile;
-- Start of processing for Analyze_Pragma
@ -9790,7 +9793,8 @@ package body Sem_Prag is
if Chars (Argx) = Name_Ravenscar then
Set_Ravenscar_Profile (N);
elsif Chars (Argx) = Name_Restricted then
Set_Profile_Restrictions (Restricted, N, Warn => False);
Set_Profile_Restrictions
(Restricted, N, Warn => Treat_Restrictions_As_Warnings);
else
Error_Pragma_Arg ("& is not a valid profile", Argx);
end if;
@ -10285,7 +10289,8 @@ package body Sem_Prag is
GNAT_Pragma;
Check_Arg_Count (0);
Check_Valid_Configuration_Pragma;
Set_Profile_Restrictions (Restricted, N, Warn => False);
Set_Profile_Restrictions
(Restricted, N, Warn => Treat_Restrictions_As_Warnings);
if Warn_On_Obsolescent_Feature then
Error_Msg_N
@ -10305,7 +10310,8 @@ package body Sem_Prag is
-- | restriction_parameter_IDENTIFIER => EXPRESSION
when Pragma_Restrictions =>
Process_Restrictions_Or_Restriction_Warnings (Warn => False);
Process_Restrictions_Or_Restriction_Warnings
(Warn => Treat_Restrictions_As_Warnings);
--------------------------
-- Restriction_Warnings --

10
gcc/ada/switch-c.adb
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@ -6,7 +6,7 @@
-- --
-- B o d y --
-- --
-- Copyright (C) 2001-2007, Free Software Foundation, Inc. --
-- Copyright (C) 2001-2008, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
@ -660,13 +660,19 @@ package body Switch.C is
Ptr := Ptr + 1;
Try_Semantics := True;
-- Processing for q switch
-- Processing for Q switch
when 'Q' =>
Ptr := Ptr + 1;
Force_ALI_Tree_File := True;
Try_Semantics := True;
-- Processing for r switch
when 'r' =>
Ptr := Ptr + 1;
Treat_Restrictions_As_Warnings := True;
-- Processing for R switch
when 'R' =>

5
gcc/ada/usage.adb
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@ -289,6 +289,11 @@ begin
Write_Switch_Char ("Q");
Write_Line ("Don't quit, write ali/tree file even if compile errors");
-- Line for -gnatr switch
Write_Switch_Char ("r");
Write_Line ("Treat pragma Restrictions as Restriction_Warnings");
-- Lines for -gnatR switch
Write_Switch_Char ("R?");