1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 2004-2005 Free Software Foundation, Inc. --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 2, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
20 -- Boston, MA 02110-1301, USA. --
22 -- GNAT was originally developed by the GNAT team at New York University. --
23 -- Extensive contributions were provided by Ada Core Technologies Inc. --
25 ------------------------------------------------------------------------------
29 with Types
; use Types
;
31 with GNAT
.OS_Lib
; use GNAT
.OS_Lib
;
35 type Fail_Proc
is access procedure
39 Do_Fail
: Fail_Proc
:= Osint
.Fail
'Access;
40 -- Comment required ???
42 function Unit_Index_Of
(ALI_File
: File_Name_Type
) return Int
;
43 -- Find the index of a unit in a source file. Return zero if the file
44 -- is not a multi-unit source file.
46 function Is_External_Assignment
(Argv
: String) return Boolean;
47 -- Verify that an external assignment switch is syntactically correct
52 -- -X"name=other value"
54 -- Assumptions: 'First = 1, Argv (1 .. 2) = "-X"
55 -- When this function returns True, the external assignment has
56 -- been entered by a call to Prj.Ext.Add, so that in a project
57 -- file, External ("name") will return "value".
59 function Linker_Options_Switches
60 (Project
: Project_Id
;
61 In_Tree
: Project_Tree_Ref
) return String_List
;
62 -- Collect the options specified in the Linker'Linker_Options attributes
63 -- of project Project, in project tree In_Tree, and in the projects that
64 -- it imports directly or indirectly, and returns the result.
66 -- Package Mains is used to store the mains specified on the command line
67 -- and to retrieve them when a project file is used, to verify that the
68 -- files exist and that they belong to a project file.
72 -- Mains are stored in a table. An index is used to retrieve the mains
75 procedure Add_Main
(Name
: String);
76 -- Add one main to the table
82 -- Reset the index to the beginning of the table
84 function Next_Main
return String;
85 -- Increase the index and return the next main.
86 -- If table is exhausted, return an empty string.
88 function Number_Of_Mains
return Natural;
89 -- Returns the number of mains added with Add_Main since the last call
94 procedure Test_If_Relative_Path
95 (Switch
: in out String_Access
;
96 Parent
: String_Access
;
97 Including_L_Switch
: Boolean := True);
98 -- Test if Switch is a relative search path switch.
99 -- If it is, fail if Parent is null, otherwise prepend the path with
100 -- Parent. This subprogram is only called when using project files.
101 -- For gnatbind switches, Including_L_Switch is False, because the
102 -- argument of the -L switch is not a path.
104 ----------------------
105 -- Marking Routines --
106 ----------------------
108 procedure Mark
(Source_File
: File_Name_Type
; Index
: Int
:= 0);
109 -- Mark a unit, identified by its source file and, when Index is not 0,
110 -- the index of the unit in the source file. Marking is used to signal
111 -- that the unit has already been inserted in the Q.
114 (Source_File
: File_Name_Type
;
115 Index
: Int
:= 0) return Boolean;
116 -- Returns True if the unit was previously marked.
118 procedure Delete_All_Marks
;
119 -- Remove all file/index couples marked