[multiple changes]

2015-10-26  Emmanuel Briot  <briot@adacore.com>

	* s-os_lib.adb (Argument_String_To_List): Remove backslashes in
	argument value.

2015-10-26  Javier Miranda  <miranda@adacore.com>

	* exp_unst.ads, exp_unst.adb (Is_Uplevel_Referenced): Removed.

From-SVN: r229361

gcc/ada/ChangeLog

+2015-10-26  Emmanuel Briot  <briot@adacore.com>
+
+	* s-os_lib.adb (Argument_String_To_List): Remove backslashes in
+	argument value.
+
+2015-10-26  Javier Miranda  <miranda@adacore.com>
+
+	* exp_unst.ads, exp_unst.adb (Is_Uplevel_Referenced): Removed.
+
 2015-10-26  Hristian Kirtchev  <kirtchev@adacore.com>
 
 	* exp_util.adb, sem_aux.adb, exp_attr.adb, sem_eval.adb: Minor

gcc/ada/exp_unst.adb

@@ -119,21 +119,6 @@ package body Exp_Unst is
      Table_Increment      => 200,
      Table_Name           => "Unnest_Urefs");
 
-   ---------------------------
-   -- Is_Uplevel_Referenced --
-   ---------------------------
-
-   function Is_Uplevel_Referenced (E : Entity_Id) return Boolean is
-   begin
-      for J in Urefs.First .. Urefs.Last loop
-         if Urefs.Table (J).Ent = E then
-            return True;
-         end if;
-      end loop;
-
-      return False;
-   end Is_Uplevel_Referenced;
-
    -----------------------
    -- Unnest_Subprogram --
    -----------------------

gcc/ada/exp_unst.ads

@@ -686,7 +686,4 @@ package Exp_Unst is
    --  adds the ARECP parameter to all nested subprograms which need it, and
    --  modifies all uplevel references appropriately.
 
-   function Is_Uplevel_Referenced (E : Entity_Id) return Boolean;
-   --  Determines if E has some uplevel reference from a nested subprogram
-
 end Exp_Unst;

gcc/ada/s-os_lib.adb

@@ -189,6 +189,12 @@ package body System.OS_Lib is
       New_Argc : Natural := 0;
       Idx      : Integer;
 
+      Cleaned     : String (1 .. Arg_String'Length);
+      Cleaned_Idx : Natural;
+      --  A cleaned up version of the argument. This function is taking
+      --  backslash escapes when computing the bounds for arguments. It is
+      --  then removing the extra backslashes from the argument.
+
    begin
       Idx := Arg_String'First;
 
@@ -198,10 +204,9 @@ package body System.OS_Lib is
          declare
             Quoted  : Boolean := False;
             Backqd  : Boolean := False;
-            Old_Idx : Integer;
 
          begin
-            Old_Idx := Idx;
+            Cleaned_Idx := Cleaned'First;
 
             loop
                --  An unquoted space is the end of an argument
@@ -217,25 +222,34 @@ package body System.OS_Lib is
                  and then Arg_String (Idx) = '"'
                then
                   Quoted := True;
+                  Cleaned (Cleaned_Idx) := Arg_String (Idx);
+                  Cleaned_Idx := Cleaned_Idx + 1;
 
                --  End of a quoted string and end of an argument
 
                elsif (Quoted and not Backqd)
                  and then Arg_String (Idx) = '"'
                then
+                  Cleaned (Cleaned_Idx) := Arg_String (Idx);
+                  Cleaned_Idx := Cleaned_Idx + 1;
                   Idx := Idx + 1;
                   exit;
 
-               --  Following character is backquoted
-
-               elsif Arg_String (Idx) = '\' then
-                  Backqd := True;
-
                --  Turn off backquoting after advancing one character
 
                elsif Backqd then
                   Backqd := False;
+                  Cleaned (Cleaned_Idx) := Arg_String (Idx);
+                  Cleaned_Idx := Cleaned_Idx + 1;
 
+               --  Following character is backquoted
+
+               elsif Arg_String (Idx) = '\' then
+                  Backqd := True;
+
+               else
+                  Cleaned (Cleaned_Idx) := Arg_String (Idx);
+                  Cleaned_Idx := Cleaned_Idx + 1;
                end if;
 
                Idx := Idx + 1;
@@ -246,7 +260,7 @@ package body System.OS_Lib is
 
             New_Argc := New_Argc + 1;
             New_Argv (New_Argc) :=
-              new String'(Arg_String (Old_Idx .. Idx - 1));
+              new String'(Cleaned (Cleaned'First .. Cleaned_Idx - 1));
 
             --  Skip extraneous spaces