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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- M A K E --
-- --
-- B o d y --
-- --
-- Copyright (C) 1992-2004 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- --
-- ware Foundation; either version 2, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with ALI; use ALI;
with ALI.Util; use ALI.Util;
with Csets;
with Debug;
with Fmap;
with Fname; use Fname;
with Fname.SF; use Fname.SF;
with Fname.UF; use Fname.UF;
with Gnatvsn; use Gnatvsn;
with Hostparm; use Hostparm;
with Makeusg;
with MLib.Prj;
with MLib.Tgt; use MLib.Tgt;
with MLib.Utl;
with Namet; use Namet;
with Opt; use Opt;
with Osint.M; use Osint.M;
with Osint; use Osint;
with Gnatvsn;
with Output; use Output;
with Prj; use Prj;
with Prj.Com;
with Prj.Env;
with Prj.Ext;
with Prj.Pars;
with Prj.Util;
with SFN_Scan;
with Sinput.P;
with Snames; use Snames;
with Switch; use Switch;
with Switch.M; use Switch.M;
with Targparm;
with Tempdir;
with Ada.Exceptions; use Ada.Exceptions;
with Ada.Command_Line; use Ada.Command_Line;
with GNAT.Directory_Operations; use GNAT.Directory_Operations;
with GNAT.Case_Util; use GNAT.Case_Util;
with System.HTable;
package body Make is
use ASCII;
-- Make control characters visible
Standard_Library_Package_Body_Name : constant String := "s-stalib.adb";
-- Every program depends on this package, that must then be checked,
-- especially when -f and -a are used.
type Sigint_Handler is access procedure;
procedure Install_Int_Handler (Handler : Sigint_Handler);
pragma Import (C, Install_Int_Handler, "__gnat_install_int_handler");
-- Called by Gnatmake to install the SIGINT handler below
procedure Sigint_Intercepted;
-- Called when the program is interrupted by Ctrl-C to delete the
-- temporary mapping files and configuration pragmas files.
-------------------------
-- Note on terminology --
-------------------------
-- In this program, we use the phrase "termination" of a file name to
-- refer to the suffix that appears after the unit name portion. Very
-- often this is simply the extension, but in some cases, the sequence
-- may be more complex, for example in main.1.ada, the termination in
-- this name is ".1.ada" and in main_.ada the termination is "_.ada".
-------------------------------------
-- Queue (Q) Manipulation Routines --
-------------------------------------
-- The Q is used in Compile_Sources below. Its implementation uses the
-- GNAT generic package Table (basically an extensible array). Q_Front
-- points to the first valid element in the Q, whereas Q.First is the first
-- element ever enqueued, while Q.Last - 1 is the last element in the Q.
--
-- +---+--------------+---+---+---+-----------+---+--------
-- Q | | ........ | | | | ....... | |
-- +---+--------------+---+---+---+-----------+---+--------
-- ^ ^ ^
-- Q.First Q_Front Q.Last - 1
--
-- The elements comprised between Q.First and Q_Front - 1 are the
-- elements that have been enqueued and then dequeued, while the
-- elements between Q_Front and Q.Last - 1 are the elements currently
-- in the Q. When the Q is initialized Q_Front = Q.First = Q.Last.
-- After Compile_Sources has terminated its execution, Q_Front = Q.Last
-- and the elements contained between Q.Front and Q.Last-1 are those that
-- were explored and thus marked by Compile_Sources. Whenever the Q is
-- reinitialized, the elements between Q.First and Q.Last - 1 are unmarked.
procedure Init_Q;
-- Must be called to (re)initialize the Q.
procedure Insert_Q
(Source_File : File_Name_Type;
Source_Unit : Unit_Name_Type := No_Name);
-- Inserts Source_File at the end of Q. Provide Source_Unit when
-- possible for external use (gnatdist).
function Empty_Q return Boolean;
-- Returns True if Q is empty.
procedure Extract_From_Q
(Source_File : out File_Name_Type;
Source_Unit : out Unit_Name_Type);
-- Extracts the first element from the Q.
procedure Insert_Project_Sources
(The_Project : Project_Id;
All_Projects : Boolean;
Into_Q : Boolean);
-- If Into_Q is True, insert all sources of the project file(s) that are
-- not already marked into the Q. If Into_Q is False, call Osint.Add_File
-- for the first source, then insert all other sources that are not already
-- marked into the Q. If All_Projects is True, all sources of all projects
-- are concerned; otherwise, only sources of The_Project are concerned,
-- including, if The_Project is an extending project, sources inherited
-- from projects being extended.
First_Q_Initialization : Boolean := True;
-- Will be set to false after Init_Q has been called once.
Q_Front : Natural;
-- Points to the first valid element in the Q.
Unique_Compile : Boolean := False;
-- Set to True if -u or -U or a project file with no main is used
Unique_Compile_All_Projects : Boolean := False;
-- Set to True if -U is used
RTS_Specified : String_Access := null;
-- Used to detect multiple --RTS= switches
type Q_Record is record
File : File_Name_Type;
Unit : Unit_Name_Type;
end record;
-- File is the name of the file to compile. Unit is for gnatdist
-- use in order to easily get the unit name of a file to compile
-- when its name is krunched or declared in gnat.adc.
package Q is new Table.Table (
Table_Component_Type => Q_Record,
Table_Index_Type => Natural,
Table_Low_Bound => 0,
Table_Initial => 4000,
Table_Increment => 100,
Table_Name => "Make.Q");
-- This is the actual Q.
-- Package Mains is used to store the mains specified on the command line
-- and to retrieve them when a project file is used, to verify that the
-- files exist and that they belong to a project file.
package Mains is
-- Mains are stored in a table. An index is used to retrieve the mains
-- from the table.
procedure Add_Main (Name : String);
-- Add one main to the table
procedure Delete;
-- Empty the table
procedure Reset;
-- Reset the index to the beginning of the table
function Next_Main return String;
-- Increase the index and return the next main.
-- If table is exhausted, return an empty string.
end Mains;
-- The following instantiations and variables are necessary to save what
-- is found on the command line, in case there is a project file specified.
package Saved_Gcc_Switches is new Table.Table (
Table_Component_Type => String_Access,
Table_Index_Type => Integer,
Table_Low_Bound => 1,
Table_Initial => 20,
Table_Increment => 100,
Table_Name => "Make.Saved_Gcc_Switches");
package Saved_Binder_Switches is new Table.Table (
Table_Component_Type => String_Access,
Table_Index_Type => Integer,
Table_Low_Bound => 1,
Table_Initial => 20,
Table_Increment => 100,
Table_Name => "Make.Saved_Binder_Switches");
package Saved_Linker_Switches is new Table.Table
(Table_Component_Type => String_Access,
Table_Index_Type => Integer,
Table_Low_Bound => 1,
Table_Initial => 20,
Table_Increment => 100,
Table_Name => "Make.Saved_Linker_Switches");
package Switches_To_Check is new Table.Table (
Table_Component_Type => String_Access,
Table_Index_Type => Integer,
Table_Low_Bound => 1,
Table_Initial => 20,
Table_Increment => 100,
Table_Name => "Make.Switches_To_Check");
package Library_Paths is new Table.Table (
Table_Component_Type => String_Access,
Table_Index_Type => Integer,
Table_Low_Bound => 1,
Table_Initial => 20,
Table_Increment => 100,
Table_Name => "Make.Library_Paths");
package Failed_Links is new Table.Table (
Table_Component_Type => File_Name_Type,
Table_Index_Type => Integer,
Table_Low_Bound => 1,
Table_Initial => 10,
Table_Increment => 100,
Table_Name => "Make.Failed_Links");
package Successful_Links is new Table.Table (
Table_Component_Type => File_Name_Type,
Table_Index_Type => Integer,
Table_Low_Bound => 1,
Table_Initial => 10,
Table_Increment => 100,
Table_Name => "Make.Successful_Links");
package Library_Projs is new Table.Table (
Table_Component_Type => Project_Id,
Table_Index_Type => Integer,
Table_Low_Bound => 1,
Table_Initial => 10,
Table_Increment => 100,
Table_Name => "Make.Library_Projs");
type Linker_Options_Data is record
Project : Project_Id;
Options : String_List_Id;
end record;
package Linker_Opts is new Table.Table (
Table_Component_Type => Linker_Options_Data,
Table_Index_Type => Integer,
Table_Low_Bound => 1,
Table_Initial => 10,
Table_Increment => 100,
Table_Name => "Make.Linker_Opts");
-- Two variables to keep the last binder and linker switch index
-- in tables Binder_Switches and Linker_Switches, before adding
-- switches from the project file (if any) and switches from the
-- command line (if any).
Last_Binder_Switch : Integer := 0;
Last_Linker_Switch : Integer := 0;
Normalized_Switches : Argument_List_Access := new Argument_List (1 .. 10);
Last_Norm_Switch : Natural := 0;
Saved_Maximum_Processes : Natural := 0;
type Arg_List_Ref is access Argument_List;
The_Saved_Gcc_Switches : Arg_List_Ref;
Project_File_Name : String_Access := null;
-- The path name of the main project file, if any
Project_File_Name_Present : Boolean := False;
-- True when -P is used with a space between -P and the project file name
Current_Verbosity : Prj.Verbosity := Prj.Default;
-- Verbosity to parse the project files
Main_Project : Prj.Project_Id := No_Project;
-- The project id of the main project file, if any
Project_Object_Directory : Project_Id := No_Project;
-- The object directory of the project for the last compilation.
-- Avoid calling Change_Dir if the current working directory is already
-- this directory
-- Packages of project files where unknown attributes are errors.
Naming_String : aliased String := "naming";
Builder_String : aliased String := "builder";
Compiler_String : aliased String := "compiler";
Binder_String : aliased String := "binder";
Linker_String : aliased String := "linker";
Gnatmake_Packages : aliased String_List :=
(Naming_String 'Access,
Builder_String 'Access,
Compiler_String 'Access,
Binder_String 'Access,
Linker_String 'Access);
Packages_To_Check_By_Gnatmake : constant String_List_Access :=
Gnatmake_Packages'Access;
procedure Add_Source_Dir (N : String);
-- Call Add_Src_Search_Dir.
-- Output one line when in verbose mode.
procedure Add_Source_Directories is
new Prj.Env.For_All_Source_Dirs (Action => Add_Source_Dir);
procedure Add_Object_Dir (N : String);
-- Call Add_Lib_Search_Dir.
-- Output one line when in verbose mode.
procedure Add_Object_Directories is
new Prj.Env.For_All_Object_Dirs (Action => Add_Object_Dir);
procedure Change_To_Object_Directory (Project : Project_Id);
-- Change to the object directory of project Project, if this is not
-- already the current working directory.
type Bad_Compilation_Info is record
File : File_Name_Type;
Unit : Unit_Name_Type;
Found : Boolean;
end record;
-- File is the name of the file for which a compilation failed.
-- Unit is for gnatdist use in order to easily get the unit name
-- of a file when its name is krunched or declared in gnat.adc.
-- Found is False if the compilation failed because the file could
-- not be found.
package Bad_Compilation is new Table.Table (
Table_Component_Type => Bad_Compilation_Info,
Table_Index_Type => Natural,
Table_Low_Bound => 1,
Table_Initial => 20,
Table_Increment => 100,
Table_Name => "Make.Bad_Compilation");
-- Full name of all the source files for which compilation fails.
Do_Compile_Step : Boolean := True;
Do_Bind_Step : Boolean := True;
Do_Link_Step : Boolean := True;
-- Flags to indicate what step should be executed.
-- Can be set to False with the switches -c, -b and -l.
-- These flags are reset to True for each invokation of procedure Gnatmake.
Shared_String : aliased String := "-shared";
No_Shared_Switch : aliased Argument_List := (1 .. 0 => null);
Shared_Switch : aliased Argument_List := (1 => Shared_String'Access);
Bind_Shared : Argument_List_Access := No_Shared_Switch'Access;
-- Switch to added in front of gnatbind switches. By default no switch is
-- added. Switch "-shared" is added if there is a non-static Library
-- Project File.
Bind_Shared_Known : Boolean := False;
-- Set to True after the first time Bind_Shared is computed
Shared_Libgcc : aliased String := "-shared-libgcc";
No_Shared_Libgcc_Switch : aliased Argument_List := (1 .. 0 => null);
Shared_Libgcc_Switch : aliased Argument_List :=
(1 => Shared_Libgcc'Access);
Link_With_Shared_Libgcc : Argument_List_Access :=
No_Shared_Libgcc_Switch'Access;
procedure Make_Failed (S1 : String; S2 : String := ""; S3 : String := "");
-- Delete all temp files created by Gnatmake and call Osint.Fail,
-- with the parameter S1, S2 and S3 (see osint.ads).
-- This is called from the Prj hierarchy and the MLib hierarchy.
--------------------------
-- Obsolete Executables --
--------------------------
Executable_Obsolete : Boolean := False;
-- Executable_Obsolete is initially set to False for each executable,
-- and is set to True whenever one of the source of the executable is
-- compiled, or has already been compiled for another executable.
Max_Header : constant := 200; -- Arbitrary
type Header_Num is range 1 .. Max_Header;
-- Header_Num for the hash table Obsoleted below
function Hash (F : Name_Id) return Header_Num;
-- Hash function for the hash table Obsoleted below
package Obsoleted is new System.HTable.Simple_HTable
(Header_Num => Header_Num,
Element => Boolean,
No_Element => False,
Key => Name_Id,
Hash => Hash,
Equal => "=");
-- A hash table to keep all files that have been compiled, to detect
-- if an executable is up to date or not.
procedure Enter_Into_Obsoleted (F : Name_Id);
-- Enter a file name, without directory information, into the has table
-- Obsoleted.
function Is_In_Obsoleted (F : Name_Id) return Boolean;
-- Check if a file name, without directory information, has already been
-- entered into the hash table Obsoleted.
type Dependency is record
This : Name_Id;
Depends_On : Name_Id;
end record;
-- Components of table Dependencies below.
package Dependencies is new Table.Table (
Table_Component_Type => Dependency,
Table_Index_Type => Integer,
Table_Low_Bound => 1,
Table_Initial => 20,
Table_Increment => 100,
Table_Name => "Make.Dependencies");
-- A table to keep dependencies, to be able to decide if an executable
-- is obsolete.
procedure Add_Dependency (S : Name_Id; On : Name_Id);
-- Add one entry in table Dependencies
----------------------------
-- Arguments and Switches --
----------------------------
Arguments : Argument_List_Access;
-- Used to gather the arguments for invocation of the compiler
Last_Argument : Natural := 0;
-- Last index of arguments in Arguments above
Arguments_Collected : Boolean := False;
-- Set to True when the arguments for the next invocation of the compiler
-- have been collected.
Arguments_Project : Project_Id;
-- Project id, if any, of the source to be compiled
Arguments_Path_Name : File_Name_Type;
-- Full path of the source to be compiled, when Arguments_Project is not
-- No_Project.
Dummy_Switch : constant String_Access := new String'("- ");
-- Used to initialized Prev_Switch in procedure Check
procedure Add_Arguments (Args : Argument_List);
-- Add arguments to global variable Arguments, increasing its size
-- if necessary and adjusting Last_Argument.
function Configuration_Pragmas_Switch
(For_Project : Project_Id) return Argument_List;
-- Return an argument list of one element, if there is a configuration
-- pragmas file to be specified for For_Project,
-- otherwise return an empty argument list.
----------------------
-- Marking Routines --
----------------------
Marking_Label : Byte := 1;
-- Value to mark the source files
procedure Mark (Source_File : File_Name_Type);
-- Mark Source_File. Marking is used to signal that Source_File has
-- already been inserted in the Q.
function Is_Marked (Source_File : File_Name_Type) return Boolean;
-- Returns True if Source_File was previously marked.
-------------------
-- Misc Routines --
-------------------
procedure List_Depend;
-- Prints to standard output the list of object dependencies. This list
-- can be used directly in a Makefile. A call to Compile_Sources must
-- precede the call to List_Depend. Also because this routine uses the
-- ALI files that were originally loaded and scanned by Compile_Sources,
-- no additional ALI files should be scanned between the two calls (i.e.
-- between the call to Compile_Sources and List_Depend.)
procedure Inform (N : Name_Id := No_Name; Msg : String);
-- Prints out the program name followed by a colon, N and S.
procedure List_Bad_Compilations;
-- Prints out the list of all files for which the compilation failed.
procedure Verbose_Msg
(N1 : Name_Id;
S1 : String;
N2 : Name_Id := No_Name;
S2 : String := "";
Prefix : String := " -> ");
-- If the verbose flag (Verbose_Mode) is set then print Prefix to standard
-- output followed by N1 and S1. If N2 /= No_Name then N2 is then printed
-- after S1. S2 is printed last. Both N1 and N2 are printed in quotation
-- marks.
Usage_Needed : Boolean := True;
-- Flag used to make sure Makeusg is call at most once
procedure Usage;
-- Call Makeusg, if Usage_Needed is True.
-- Set Usage_Needed to False.
procedure Debug_Msg (S : String; N : Name_Id);
-- If Debug.Debug_Flag_W is set outputs string S followed by name N.
type Project_Array is array (Positive range <>) of Project_Id;
No_Projects : constant Project_Array := (1 .. 0 => No_Project);
procedure Recursive_Compute_Depth
(Project : Project_Id;
Visited : Project_Array;
Depth : Natural);
-- Compute depth of Project and of the projects it depends on
-----------------------
-- Gnatmake Routines --
-----------------------
Gnatmake_Called : Boolean := False;
-- Set to True when procedure Gnatmake is called.
-- Attempt to delete temporary files is made only when Gnatmake_Called
-- is True.
subtype Lib_Mark_Type is Byte;
-- Used in Mark_Directory
Ada_Lib_Dir : constant Lib_Mark_Type := 1;
-- Used to mark a directory as a GNAT lib dir
-- Note that the notion of GNAT lib dir is no longer used. The code
-- related to it has not been removed to give an idea on how to use
-- the directory prefix marking mechanism.
-- An Ada library directory is a directory containing ali and object
-- files but no source files for the bodies (the specs can be in the
-- same or some other directory). These directories are specified
-- in the Gnatmake command line with the switch "-Adir" (to specify the
-- spec location -Idir cab be used). Gnatmake skips the missing sources
-- whose ali are in Ada library directories. For an explanation of why
-- Gnatmake behaves that way, see the spec of Make.Compile_Sources.
-- The directory lookup penalty is incurred every single time this
-- routine is called.
procedure Check_Steps;
-- Check what steps (Compile, Bind, Link) must be executed.
-- Set the step flags accordingly.
function Is_External_Assignment (Argv : String) return Boolean;
-- Verify that an external assignment switch is syntactically correct.
-- Correct forms are
-- -Xname=value
-- -X"name=other value"
-- Assumptions: 'First = 1, Argv (1 .. 2) = "-X"
-- When this function returns True, the external assignment has
-- been entered by a call to Prj.Ext.Add, so that in a project
-- file, External ("name") will return "value".
function In_Ada_Lib_Dir (File : File_Name_Type) return Boolean;
-- Get directory prefix of this file and get lib mark stored in name
-- table for this directory. Then check if an Ada lib mark has been set.
procedure Mark_Directory
(Dir : String;
Mark : Lib_Mark_Type);
-- Store Dir in name table and set lib mark as name info to identify
-- Ada libraries.
Output_Is_Object : Boolean := True;
-- Set to False when using a switch -S for the compiler
procedure Check_For_S_Switch;
-- Set Output_Is_Object to False when the -S switch is used for the
-- compiler.
function Switches_Of
(Source_File : Name_Id;
Source_File_Name : String;
Naming : Naming_Data;
In_Package : Package_Id;
Allow_ALI : Boolean) return Variable_Value;
-- Return the switches for the source file in the specified package
-- of a project file. If the Source_File ends with a standard GNAT
-- extension (".ads" or ".adb"), try first the full name, then the
-- name without the extension, then, if Allow_ALI is True, the name with
-- the extension ".ali". If there is no switches for either names, try the
-- default switches for Ada. If all failed, return No_Variable_Value.
procedure Test_If_Relative_Path
(Switch : in out String_Access;
Parent : String_Access;
Including_L_Switch : Boolean := True);
-- Test if Switch is a relative search path switch.
-- If it is, fail if Parent is null, otherwise prepend the path with
-- Parent. This subprogram is only called when using project files.
-- For gnatbind switches, Including_L_Switch is False, because the
-- argument of the -L switch is not a path.
function Is_In_Object_Directory
(Source_File : File_Name_Type;
Full_Lib_File : File_Name_Type) return Boolean;
-- Check if, when using a project file, the ALI file is in the project
-- directory of the ultimate extending project. If it is not, we ignore
-- the fact that this ALI file is read-only.
----------------------------------------------------
-- Compiler, Binder & Linker Data and Subprograms --
----------------------------------------------------
Gcc : String_Access := Program_Name ("gcc");
Gnatbind : String_Access := Program_Name ("gnatbind");
Gnatlink : String_Access := Program_Name ("gnatlink");
-- Default compiler, binder, linker programs
Saved_Gcc : String_Access := null;
Saved_Gnatbind : String_Access := null;
Saved_Gnatlink : String_Access := null;
-- Given by the command line. Will be used, if non null.
Gcc_Path : String_Access :=
GNAT.OS_Lib.Locate_Exec_On_Path (Gcc.all);
Gnatbind_Path : String_Access :=
GNAT.OS_Lib.Locate_Exec_On_Path (Gnatbind.all);
Gnatlink_Path : String_Access :=
GNAT.OS_Lib.Locate_Exec_On_Path (Gnatlink.all);
-- Path for compiler, binder, linker programs, defaulted now for gnatdist.
-- Changed later if overridden on command line.
Comp_Flag : constant String_Access := new String'("-c");
Output_Flag : constant String_Access := new String'("-o");
Ada_Flag_1 : constant String_Access := new String'("-x");
Ada_Flag_2 : constant String_Access := new String'("ada");
No_gnat_adc : constant String_Access := new String'("-gnatA");
GNAT_Flag : constant String_Access := new String'("-gnatpg");
Do_Not_Check_Flag : constant String_Access := new String'("-x");
Object_Suffix : constant String := Get_Object_Suffix.all;
Executable_Suffix : constant String := Get_Executable_Suffix.all;
Syntax_Only : Boolean := False;
-- Set to True when compiling with -gnats
Display_Executed_Programs : Boolean := True;
-- Set to True if name of commands should be output on stderr.
Output_File_Name_Seen : Boolean := False;
-- Set to True after having scanned the file_name for
-- switch "-o file_name"
Object_Directory_Seen : Boolean := False;
-- Set to True after having scanned the object directory for
-- switch "-D obj_dir".
Object_Directory_Path : String_Access := null;
-- The path name of the object directory, set with switch -D.
type Make_Program_Type is (None, Compiler, Binder, Linker);
Program_Args : Make_Program_Type := None;
-- Used to indicate if we are scanning gnatmake, gcc, gnatbind, or gnatbind
-- options within the gnatmake command line.
-- Used in Scan_Make_Arg only, but must be a global variable.
Temporary_Config_File : Boolean := False;
-- Set to True when there is a temporary config file used for a project
-- file, to avoid displaying the -gnatec switch for a temporary file.
procedure Add_Switches
(The_Package : Package_Id;
File_Name : String;
Program : Make_Program_Type);
procedure Add_Switch
(S : String_Access;
Program : Make_Program_Type;
Append_Switch : Boolean := True;
And_Save : Boolean := True);
procedure Add_Switch
(S : String;
Program : Make_Program_Type;
Append_Switch : Boolean := True;
And_Save : Boolean := True);
-- Make invokes one of three programs (the compiler, the binder or the
-- linker). For the sake of convenience, some program specific switches
-- can be passed directly on the gnatmake commande line. This procedure
-- records these switches so that gnamake can pass them to the right
-- program. S is the switch to be added at the end of the command line
-- for Program if Append_Switch is True. If Append_Switch is False S is
-- added at the beginning of the command line.
procedure Check
(Source_File : File_Name_Type;
The_Args : Argument_List;
Lib_File : File_Name_Type;
Read_Only : Boolean;
ALI : out ALI_Id;
O_File : out File_Name_Type;
O_Stamp : out Time_Stamp_Type);
-- Determines whether the library file Lib_File is up-to-date or not. The
-- full name (with path information) of the object file corresponding to
-- Lib_File is returned in O_File. Its time stamp is saved in O_Stamp.
-- ALI is the ALI_Id corresponding to Lib_File. If Lib_File in not
-- up-to-date, then the corresponding source file needs to be recompiled.
-- In this case ALI = No_ALI_Id.
procedure Check_Linker_Options
(E_Stamp : Time_Stamp_Type;
O_File : out File_Name_Type;
O_Stamp : out Time_Stamp_Type);
-- Checks all linker options for linker files that are newer
-- than E_Stamp. If such objects are found, the youngest object
-- is returned in O_File and its stamp in O_Stamp.
--
-- If no obsolete linker files were found, the first missing
-- linker file is returned in O_File and O_Stamp is empty.
-- Otherwise O_File is No_File.
procedure Collect_Arguments
(Source_File : File_Name_Type;
Args : Argument_List);
-- Collect all arguments for a source to be compiled, including those
-- that come from a project file.
procedure Display (Program : String; Args : Argument_List);
-- Displays Program followed by the arguments in Args if variable
-- Display_Executed_Programs is set. The lower bound of Args must be 1.
-----------------
-- Mapping files
-----------------
type Temp_File_Names is
array (Project_Id range <>, Positive range <>) of Name_Id;
type Temp_Files_Ptr is access Temp_File_Names;
type Indices is array (Project_Id range <>) of Natural;
type Indices_Ptr is access Indices;
type Free_File_Indices is array
(Project_Id range <>, Positive range <>) of Positive;
type Free_Indices_Ptr is access Free_File_Indices;
The_Mapping_File_Names : Temp_Files_Ptr;
-- For each project, the name ids of the temporary mapping files used
Last_Mapping_File_Names : Indices_Ptr;
-- For each project, the index of the last mapping file created
The_Free_Mapping_File_Indices : Free_Indices_Ptr;
-- For each project, the indices in The_Mapping_File_Names of the mapping
-- file names that can be reused for subsequent compilations.
Last_Free_Indices : Indices_Ptr;
-- For each project, the number of mapping files that can be reused
Gnatmake_Mapping_File : String_Access := null;
-- The path name of a mapping file specified by switch -C=
procedure Delete_Mapping_Files;
-- Delete all temporary mapping files
procedure Init_Mapping_File
(Project : Project_Id;
File_Index : in out Natural);
-- Create a new temporary mapping file, and fill it with the project file
-- mappings, when using project file(s). The out parameter File_Index is
-- the index to the name of the file in the array The_Mapping_File_Names.
procedure Delete_Temp_Config_Files;
-- Delete all temporary config files
procedure Delete_All_Temp_Files;
-- Delete all temp files (config files, mapping files, path files)
-------------------
-- Add_Arguments --
-------------------
procedure Add_Arguments (Args : Argument_List) is
begin
if Arguments = null then
Arguments := new Argument_List (1 .. Args'Length + 10);
else
while Last_Argument + Args'Length > Arguments'Last loop
declare
New_Arguments : Argument_List_Access :=
new Argument_List (1 .. Arguments'Last * 2);
begin
New_Arguments (1 .. Last_Argument) :=
Arguments (1 .. Last_Argument);
Arguments := New_Arguments;
end;
end loop;
end if;
Arguments (Last_Argument + 1 .. Last_Argument + Args'Length) := Args;
Last_Argument := Last_Argument + Args'Length;
end Add_Arguments;
--------------------
-- Add_Dependency --
--------------------
procedure Add_Dependency (S : Name_Id; On : Name_Id) is
begin
Dependencies.Increment_Last;
Dependencies.Table (Dependencies.Last) := (S, On);
end Add_Dependency;
--------------------
-- Add_Object_Dir --
--------------------
procedure Add_Object_Dir (N : String) is
begin
Add_Lib_Search_Dir (N);
if Opt.Verbose_Mode then
Write_Str ("Adding object directory """);
Write_Str (N);
Write_Str (""".");
Write_Eol;
end if;
end Add_Object_Dir;
--------------------
-- Add_Source_Dir --
--------------------
procedure Add_Source_Dir (N : String) is
begin
Add_Src_Search_Dir (N);
if Opt.Verbose_Mode then
Write_Str ("Adding source directory """);
Write_Str (N);
Write_Str (""".");
Write_Eol;
end if;
end Add_Source_Dir;
----------------
-- Add_Switch --
----------------
procedure Add_Switch
(S : String_Access;
Program : Make_Program_Type;
Append_Switch : Boolean := True;
And_Save : Boolean := True)
is
generic
with package T is new Table.Table (<>);
procedure Generic_Position (New_Position : out Integer);
-- Generic procedure that chooses a position for S in T at the
-- beginning or the end, depending on the boolean Append_Switch.
-- Calling this procedure may expand the table.
----------------------
-- Generic_Position --
----------------------
procedure Generic_Position (New_Position : out Integer) is
begin
T.Increment_Last;
if Append_Switch then
New_Position := Integer (T.Last);
else
for J in reverse T.Table_Index_Type'Succ (T.First) .. T.Last loop
T.Table (J) := T.Table (T.Table_Index_Type'Pred (J));
end loop;
New_Position := Integer (T.First);
end if;
end Generic_Position;
procedure Gcc_Switches_Pos is new Generic_Position (Gcc_Switches);
procedure Binder_Switches_Pos is new Generic_Position (Binder_Switches);
procedure Linker_Switches_Pos is new Generic_Position (Linker_Switches);
procedure Saved_Gcc_Switches_Pos is new
Generic_Position (Saved_Gcc_Switches);
procedure Saved_Binder_Switches_Pos is new
Generic_Position (Saved_Binder_Switches);
procedure Saved_Linker_Switches_Pos is new
Generic_Position (Saved_Linker_Switches);
New_Position : Integer;
-- Start of processing for Add_Switch
begin
if And_Save then
case Program is
when Compiler =>
Saved_Gcc_Switches_Pos (New_Position);
Saved_Gcc_Switches.Table (New_Position) := S;
when Binder =>
Saved_Binder_Switches_Pos (New_Position);
Saved_Binder_Switches.Table (New_Position) := S;
when Linker =>
Saved_Linker_Switches_Pos (New_Position);
Saved_Linker_Switches.Table (New_Position) := S;
when None =>
raise Program_Error;
end case;
else
case Program is
when Compiler =>
Gcc_Switches_Pos (New_Position);
Gcc_Switches.Table (New_Position) := S;
when Binder =>
Binder_Switches_Pos (New_Position);
Binder_Switches.Table (New_Position) := S;
when Linker =>
Linker_Switches_Pos (New_Position);
Linker_Switches.Table (New_Position) := S;
when None =>
raise Program_Error;
end case;
end if;
end Add_Switch;
procedure Add_Switch
(S : String;
Program : Make_Program_Type;
Append_Switch : Boolean := True;
And_Save : Boolean := True)
is
begin
Add_Switch (S => new String'(S),
Program => Program,
Append_Switch => Append_Switch,
And_Save => And_Save);
end Add_Switch;
------------------
-- Add_Switches --
------------------
procedure Add_Switches
(The_Package : Package_Id;
File_Name : String;
Program : Make_Program_Type)
is
Switches : Variable_Value;
Switch_List : String_List_Id;
Element : String_Element;
begin
if File_Name'Length > 0 then
Name_Len := File_Name'Length;
Name_Buffer (1 .. Name_Len) := File_Name;
Switches :=
Switches_Of
(Source_File => Name_Find,
Source_File_Name => File_Name,
Naming => Projects.Table (Main_Project).Naming,
In_Package => The_Package,
Allow_ALI =>
Program = Binder or else Program = Linker);
case Switches.Kind is
when Undefined =>
null;
when List =>
Program_Args := Program;
Switch_List := Switches.Values;
while Switch_List /= Nil_String loop
Element := String_Elements.Table (Switch_List);
Get_Name_String (Element.Value);
if Name_Len > 0 then
declare
Argv : constant String := Name_Buffer (1 .. Name_Len);
-- We need a copy, because Name_Buffer may be
-- modified.
begin
if Opt.Verbose_Mode then
Write_Str (" Adding ");
Write_Line (Argv);
end if;
Scan_Make_Arg (Argv, And_Save => False);
end;
end if;
Switch_List := Element.Next;
end loop;
when Single =>
Program_Args := Program;
Get_Name_String (Switches.Value);
if Name_Len > 0 then
declare
Argv : constant String := Name_Buffer (1 .. Name_Len);
-- We need a copy, because Name_Buffer may be modified
begin
if Opt.Verbose_Mode then
Write_Str (" Adding ");
Write_Line (Argv);
end if;
Scan_Make_Arg (Argv, And_Save => False);
end;
end if;
end case;
end if;
end Add_Switches;
----------
-- Bind --
----------
procedure Bind (ALI_File : File_Name_Type; Args : Argument_List) is
Bind_Args : Argument_List (1 .. Args'Last + 2);
Bind_Last : Integer;
Success : Boolean;
begin
pragma Assert (Args'First = 1);
-- Optimize the simple case where the gnatbind command line looks like
-- gnatbind -aO. -I- file.ali --into-> gnatbind file.adb
if Args'Length = 2
and then Args (Args'First).all = "-aO" & Normalized_CWD
and then Args (Args'Last).all = "-I-"
and then ALI_File = Strip_Directory (ALI_File)
then
Bind_Last := Args'First - 1;
else
Bind_Last := Args'Last;
Bind_Args (Args'Range) := Args;
end if;
-- It is completely pointless to re-check source file time stamps.
-- This has been done already by gnatmake
Bind_Last := Bind_Last + 1;
Bind_Args (Bind_Last) := Do_Not_Check_Flag;
Get_Name_String (ALI_File);
Bind_Last := Bind_Last + 1;
Bind_Args (Bind_Last) := new String'(Name_Buffer (1 .. Name_Len));
GNAT.OS_Lib.Normalize_Arguments (Bind_Args (Args'First .. Bind_Last));
Display (Gnatbind.all, Bind_Args (Args'First .. Bind_Last));
if Gnatbind_Path = null then
Make_Failed ("error, unable to locate ", Gnatbind.all);
end if;
GNAT.OS_Lib.Spawn
(Gnatbind_Path.all, Bind_Args (Args'First .. Bind_Last), Success);
if not Success then
raise Bind_Failed;
end if;
end Bind;
--------------------------------
-- Change_To_Object_Directory --
--------------------------------
procedure Change_To_Object_Directory (Project : Project_Id) is
begin
-- Nothing to do if the current working directory is alresdy the one
-- we want.
if Project_Object_Directory /= Project then
Project_Object_Directory := Project;
-- If in a real project, set the working directory to the object
-- directory of the project.
if Project /= No_Project then
Change_Dir
(Get_Name_String (Projects.Table (Project).Object_Directory));
-- Otherwise, for sources outside of any project, set the working
-- directory to the object directory of the main project.
elsif Main_Project /= No_Project then
Change_Dir
(Get_Name_String
(Projects.Table (Main_Project).Object_Directory));
end if;
end if;
end Change_To_Object_Directory;
-----------
-- Check --
-----------
procedure Check
(Source_File : File_Name_Type;
The_Args : Argument_List;
Lib_File : File_Name_Type;
Read_Only : Boolean;
ALI : out ALI_Id;
O_File : out File_Name_Type;
O_Stamp : out Time_Stamp_Type)
is
function First_New_Spec (A : ALI_Id) return File_Name_Type;
-- Looks in the with table entries of A and returns the spec file name
-- of the first withed unit (subprogram) for which no spec existed when
-- A was generated but for which there exists one now, implying that A
-- is now obsolete. If no such unit is found No_File is returned.
-- Otherwise the spec file name of the unit is returned.
--
-- **WARNING** in the event of Uname format modifications, one *MUST*
-- make sure this function is also updated.
--
-- Note: This function should really be in ali.adb and use Uname
-- services, but this causes the whole compiler to be dragged along
-- for gnatbind and gnatmake.
--------------------
-- First_New_Spec --
--------------------
function First_New_Spec (A : ALI_Id) return File_Name_Type is
Spec_File_Name : File_Name_Type := No_File;
function New_Spec (Uname : Unit_Name_Type) return Boolean;
-- Uname is the name of the spec or body of some ada unit.
-- This function returns True if the Uname is the name of a body
-- which has a spec not mentioned inali file A. If True is returned
-- Spec_File_Name above is set to the name of this spec file.
--------------
-- New_Spec --
--------------
function New_Spec (Uname : Unit_Name_Type) return Boolean is
Spec_Name : Unit_Name_Type;
File_Name : File_Name_Type;
begin
-- Test whether Uname is the name of a body unit (ie ends with %b)
Get_Name_String (Uname);
pragma
Assert (Name_Len > 2 and then Name_Buffer (Name_Len - 1) = '%');
if Name_Buffer (Name_Len) /= 'b' then
return False;
end if;
-- Convert unit name into spec name
-- ??? this code seems dubious in presence of pragma
-- Source_File_Name since there is no more direct relationship
-- between unit name and file name.
-- ??? Further, what about alternative subunit naming
Name_Buffer (Name_Len) := 's';
Spec_Name := Name_Find;
File_Name := Get_File_Name (Spec_Name, Subunit => False);
-- Look if File_Name is mentioned in A's sdep list.
-- If not look if the file exists. If it does return True.
for D in
ALIs.Table (A).First_Sdep .. ALIs.Table (A).Last_Sdep
loop
if Sdep.Table (D).Sfile = File_Name then
return False;
end if;
end loop;
if Full_Source_Name (File_Name) /= No_File then
Spec_File_Name := File_Name;
return True;
end if;
return False;
end New_Spec;
-- Start of processing for First_New_Spec
begin
U_Chk : for U in
ALIs.Table (A).First_Unit .. ALIs.Table (A).Last_Unit
loop
exit U_Chk when Units.Table (U).Utype = Is_Body_Only
and then New_Spec (Units.Table (U).Uname);
for W in Units.Table (U).First_With
..
Units.Table (U).Last_With
loop
exit U_Chk when
Withs.Table (W).Afile /= No_File
and then New_Spec (Withs.Table (W).Uname);
end loop;
end loop U_Chk;
return Spec_File_Name;
end First_New_Spec;
---------------------------------
-- Data declarations for Check --
---------------------------------
Full_Lib_File : File_Name_Type;
-- Full name of current library file
Full_Obj_File : File_Name_Type;
-- Full name of the object file corresponding to Lib_File.
Lib_Stamp : Time_Stamp_Type;
-- Time stamp of the current ada library file.
Obj_Stamp : Time_Stamp_Type;
-- Time stamp of the current object file.
Modified_Source : File_Name_Type;
-- The first source in Lib_File whose current time stamp differs
-- from that stored in Lib_File.
New_Spec : File_Name_Type;
-- If Lib_File contains in its W (with) section a body (for a
-- subprogram) for which there exists a spec and the spec did not
-- appear in the Sdep section of Lib_File, New_Spec contains the file
-- name of this new spec.
Source_Name : Name_Id;
Text : Text_Buffer_Ptr;
Prev_Switch : String_Access;
-- Previous switch processed
Arg : Arg_Id := Arg_Id'First;
-- Current index in Args.Table for a given unit (init to stop warning)
Switch_Found : Boolean;
-- True if a given switch has been found
-- Start of processing for Check
begin
pragma Assert (Lib_File /= No_File);
-- If the ALI file is read-only, set temporarily
-- Check_Object_Consistency to False: we don't care if the object file
-- is not there; presumably, a library will be used for linking.
if Read_Only then
declare
Saved_Check_Object_Consistency : constant Boolean :=
Opt.Check_Object_Consistency;
begin
Opt.Check_Object_Consistency := False;
Text := Read_Library_Info (Lib_File);
Opt.Check_Object_Consistency := Saved_Check_Object_Consistency;
end;
else
Text := Read_Library_Info (Lib_File);
end if;
Full_Lib_File := Full_Library_Info_Name;
Full_Obj_File := Full_Object_File_Name;
Lib_Stamp := Current_Library_File_Stamp;
Obj_Stamp := Current_Object_File_Stamp;
if Full_Lib_File = No_File then
Verbose_Msg (Lib_File, "being checked ...", Prefix => " ");
else
Verbose_Msg (Full_Lib_File, "being checked ...", Prefix => " ");
end if;
ALI := No_ALI_Id;
O_File := Full_Obj_File;
O_Stamp := Obj_Stamp;
if Text = null then
if Full_Lib_File = No_File then
Verbose_Msg (Lib_File, "missing.");
elsif Obj_Stamp (Obj_Stamp'First) = ' ' then
Verbose_Msg (Full_Obj_File, "missing.");
else
Verbose_Msg
(Full_Lib_File, "(" & String (Lib_Stamp) & ") newer than",
Full_Obj_File, "(" & String (Obj_Stamp) & ")");
end if;
else
ALI := Scan_ALI (Lib_File, Text, Ignore_ED => False, Err => True);
Free (Text);
if ALI = No_ALI_Id then
Verbose_Msg (Full_Lib_File, "incorrectly formatted ALI file");
return;
elsif ALIs.Table (ALI).Ver (1 .. ALIs.Table (ALI).Ver_Len) /=
Verbose_Library_Version
then
Verbose_Msg (Full_Lib_File, "compiled with old GNAT version");
ALI := No_ALI_Id;
return;
end if;
-- Don't take Ali file into account if it was generated with
-- errors.
if ALIs.Table (ALI).Compile_Errors then
Verbose_Msg (Full_Lib_File, "had errors, must be recompiled");
ALI := No_ALI_Id;
return;
end if;
-- Don't take Ali file into account if it was generated without
-- object.
if Opt.Operating_Mode /= Opt.Check_Semantics
and then ALIs.Table (ALI).No_Object
then
Verbose_Msg (Full_Lib_File, "has no corresponding object");
ALI := No_ALI_Id;
return;
end if;
-- Check for matching compiler switches if needed
if Opt.Check_Switches then
-- First, collect all the switches
Collect_Arguments (Source_File, The_Args);
Prev_Switch := Dummy_Switch;
Get_Name_String (ALIs.Table (ALI).Sfile);
Switches_To_Check.Set_Last (0);
for J in 1 .. Last_Argument loop
-- Skip non switches -c, -I and -o switches
if Arguments (J) (1) = '-'
and then Arguments (J) (2) /= 'c'
and then Arguments (J) (2) /= 'o'
and then Arguments (J) (2) /= 'I'
then
Normalize_Compiler_Switches
(Arguments (J).all,
Normalized_Switches,
Last_Norm_Switch);
for K in 1 .. Last_Norm_Switch loop
Switches_To_Check.Increment_Last;
Switches_To_Check.Table (Switches_To_Check.Last) :=
Normalized_Switches (K);
end loop;
end if;
end loop;
for J in 1 .. Switches_To_Check.Last loop
-- Comparing switches is delicate because gcc reorders
-- a number of switches, according to lang-specs.h, but
-- gnatmake doesn't have the sufficient knowledge to
-- perform the same reordering. Instead, we ignore orders
-- between different "first letter" switches, but keep
-- orders between same switches, e.g -O -O2 is different
-- than -O2 -O, but -g -O is equivalent to -O -g.
if Switches_To_Check.Table (J) (2) /= Prev_Switch (2) or else
(Prev_Switch'Length >= 6 and then
Prev_Switch (2 .. 5) = "gnat" and then
Switches_To_Check.Table (J)'Length >= 6 and then
Switches_To_Check.Table (J) (2 .. 5) = "gnat" and then
Prev_Switch (6) /= Switches_To_Check.Table (J) (6))
then
Prev_Switch := Switches_To_Check.Table (J);
Arg :=
Units.Table (ALIs.Table (ALI).First_Unit).First_Arg;
end if;
Switch_Found := False;
for K in Arg ..
Units.Table (ALIs.Table (ALI).First_Unit).Last_Arg
loop
if
Switches_To_Check.Table (J).all = Args.Table (K).all
then
Arg := K + 1;
Switch_Found := True;
exit;
end if;
end loop;
if not Switch_Found then
if Opt.Verbose_Mode then
Verbose_Msg (ALIs.Table (ALI).Sfile,
"switch mismatch """ &
Switches_To_Check.Table (J).all & '"');
end if;
ALI := No_ALI_Id;
return;
end if;
end loop;
if Switches_To_Check.Last /=
Integer (Units.Table (ALIs.Table (ALI).First_Unit).Last_Arg -
Units.Table (ALIs.Table (ALI).First_Unit).First_Arg + 1)
then
if Opt.Verbose_Mode then
Verbose_Msg (ALIs.Table (ALI).Sfile,
"different number of switches");
for K in Units.Table (ALIs.Table (ALI).First_Unit).First_Arg
.. Units.Table (ALIs.Table (ALI).First_Unit).Last_Arg
loop
Write_Str (Args.Table (K).all);
Write_Char (' ');
end loop;
Write_Eol;
for J in 1 .. Switches_To_Check.Last loop
Write_Str (Switches_To_Check.Table (J).all);
Write_Char (' ');
end loop;
Write_Eol;
end if;
ALI := No_ALI_Id;
return;
end if;
end if;
-- Get the source files and their message digests. Note that some
-- sources may be missing if ALI is out-of-date.
Set_Source_Table (ALI);
Modified_Source := Time_Stamp_Mismatch (ALI, Read_Only);
if Modified_Source /= No_File then
ALI := No_ALI_Id;
if Opt.Verbose_Mode then
Source_Name := Full_Source_Name (Modified_Source);
if Source_Name /= No_File then
Verbose_Msg (Source_Name, "time stamp mismatch");
else
Verbose_Msg (Modified_Source, "missing");
end if;
end if;
else
New_Spec := First_New_Spec (ALI);
if New_Spec /= No_File then
ALI := No_ALI_Id;
if Opt.Verbose_Mode then
Source_Name := Full_Source_Name (New_Spec);
if Source_Name /= No_File then
Verbose_Msg (Source_Name, "new spec");
else
Verbose_Msg (New_Spec, "old spec missing");
end if;
end if;
end if;
end if;
end if;
end Check;
------------------------
-- Check_For_S_Switch --
------------------------
procedure Check_For_S_Switch is
begin
-- By default, we generate an object file
Output_Is_Object := True;
for Arg in 1 .. Last_Argument loop
if Arguments (Arg).all = "-S" then
Output_Is_Object := False;
elsif Arguments (Arg).all = "-c" then
Output_Is_Object := True;
end if;
end loop;
end Check_For_S_Switch;
--------------------------
-- Check_Linker_Options --
--------------------------
procedure Check_Linker_Options
(E_Stamp : Time_Stamp_Type;
O_File : out File_Name_Type;
O_Stamp : out Time_Stamp_Type)
is
procedure Check_File (File : File_Name_Type);
-- Update O_File and O_Stamp if the given file is younger than E_Stamp
-- and O_Stamp, or if O_File is No_File and File does not exist.
function Get_Library_File (Name : String) return File_Name_Type;
-- Return the full file name including path of a library based
-- on the name specified with the -l linker option, using the
-- Ada object path. Return No_File if no such file can be found.
type Char_Array is array (Natural) of Character;
type Char_Array_Access is access constant Char_Array;
Template : Char_Array_Access;
pragma Import (C, Template, "__gnat_library_template");
----------------
-- Check_File --
----------------
procedure Check_File (File : File_Name_Type) is
Stamp : Time_Stamp_Type;
Name : File_Name_Type := File;
begin
Get_Name_String (Name);
-- Remove any trailing NUL characters
while Name_Len >= Name_Buffer'First
and then Name_Buffer (Name_Len) = NUL
loop
Name_Len := Name_Len - 1;
end loop;
if Name_Len <= 0 then
return;
elsif Name_Buffer (1) = '-' then
-- Do not check if File is a switch other than "-l"
if Name_Buffer (2) /= 'l' then
return;
end if;
-- The argument is a library switch, get actual name. It
-- is necessary to make a copy of the relevant part of
-- Name_Buffer as Get_Library_Name uses Name_Buffer as well.
declare
Base_Name : constant String := Name_Buffer (3 .. Name_Len);
begin
Name := Get_Library_File (Base_Name);
end;
if Name = No_File then
return;
end if;
end if;
Stamp := File_Stamp (Name);
-- Find the youngest object file that is younger than the
-- executable. If no such file exist, record the first object
-- file that is not found.
if (O_Stamp < Stamp and then E_Stamp < Stamp)
or else (O_File = No_File and then Stamp (Stamp'First) = ' ')
then
O_Stamp := Stamp;
O_File := Name;
-- Strip the trailing NUL if present
Get_Name_String (O_File);
if Name_Buffer (Name_Len) = NUL then
Name_Len := Name_Len - 1;
O_File := Name_Find;
end if;
end if;
end Check_File;
----------------------
-- Get_Library_Name --
----------------------
-- See comments in a-adaint.c about template syntax
function Get_Library_File (Name : String) return File_Name_Type is
File : File_Name_Type := No_File;
begin
Name_Len := 0;
for Ptr in Template'Range loop
case Template (Ptr) is
when '*' =>
Add_Str_To_Name_Buffer (Name);
when ';' =>
File := Full_Lib_File_Name (Name_Find);
exit when File /= No_File;
Name_Len := 0;
when NUL =>
exit;
when others =>
Add_Char_To_Name_Buffer (Template (Ptr));
end case;
end loop;
-- The for loop exited because the end of the template
-- was reached. File contains the last possible file name
-- for the library.
if File = No_File and then Name_Len > 0 then
File := Full_Lib_File_Name (Name_Find);
end if;
return File;
end Get_Library_File;
-- Start of processing for Check_Linker_Options
begin
O_File := No_File;
O_Stamp := (others => ' ');
-- Process linker options from the ALI files.
for Opt in 1 .. Linker_Options.Last loop
Check_File (Linker_Options.Table (Opt).Name);
end loop;
-- Process options given on the command line.
for Opt in Linker_Switches.First .. Linker_Switches.Last loop
-- Check if the previous Opt has one of the two switches
-- that take an extra parameter. (See GCC manual.)
if Opt = Linker_Switches.First
or else (Linker_Switches.Table (Opt - 1).all /= "-u"
and then
Linker_Switches.Table (Opt - 1).all /= "-Xlinker"
and then
Linker_Switches.Table (Opt - 1).all /= "-L")
then
Name_Len := 0;
Add_Str_To_Name_Buffer (Linker_Switches.Table (Opt).all);
Check_File (Name_Find);
end if;
end loop;
end Check_Linker_Options;
-----------------
-- Check_Steps --
-----------------
procedure Check_Steps is
begin
-- If either -c, -b or -l has been specified, we will not necessarily
-- execute all steps.
if Make_Steps then
Do_Compile_Step := Do_Compile_Step and Compile_Only;
Do_Bind_Step := Do_Bind_Step and Bind_Only;
Do_Link_Step := Do_Link_Step and Link_Only;
-- If -c has been specified, but not -b, ignore any potential -l
if Do_Compile_Step and then not Do_Bind_Step then
Do_Link_Step := False;
end if;
end if;
end Check_Steps;
-----------------------
-- Collect_Arguments --
-----------------------
procedure Collect_Arguments
(Source_File : File_Name_Type;
Args : Argument_List)
is
begin
Arguments_Collected := True;
Arguments_Project := No_Project;
Last_Argument := 0;
Add_Arguments (Args);
if Main_Project /= No_Project then
declare
Source_File_Name : constant String :=
Get_Name_String (Source_File);
Compiler_Package : Prj.Package_Id;
Switches : Prj.Variable_Value;
Data : Project_Data;
begin
Prj.Env.
Get_Reference
(Source_File_Name => Source_File_Name,
Project => Arguments_Project,
Path => Arguments_Path_Name);
-- If the source is not a source of a project file,
-- we simply add the saved gcc switches.
if Arguments_Project = No_Project then
Add_Arguments (The_Saved_Gcc_Switches.all);
else
-- We get the project directory for the relative path
-- switches and arguments.
Data := Projects.Table (Arguments_Project);
-- If the source is in an extended project, we go to
-- the ultimate extending project.
while Data.Extended_By /= No_Project loop
Arguments_Project := Data.Extended_By;
Data := Projects.Table (Arguments_Project);
end loop;
-- If building a dynamic or relocatable library, compile with
-- PIC option, if it exists.
if Data.Library and then Data.Library_Kind /= Static then
declare
PIC : constant String := MLib.Tgt.PIC_Option;
begin
if PIC /= "" then
Add_Arguments ((1 => new String'(PIC)));
end if;
end;
end if;
if Data.Dir_Path = null then
Data.Dir_Path :=
new String'(Get_Name_String (Data.Display_Directory));
Projects.Table (Arguments_Project) := Data;
end if;
-- We now look for package Compiler
-- and get the switches from this package.
Compiler_Package :=
Prj.Util.Value_Of
(Name => Name_Compiler,
In_Packages => Data.Decl.Packages);
if Compiler_Package /= No_Package then
-- If package Gnatmake.Compiler exists, we get
-- the specific switches for the current source,
-- or the global switches, if any.
Switches := Switches_Of
(Source_File => Source_File,
Source_File_Name => Source_File_Name,
Naming => Data.Naming,
In_Package => Compiler_Package,
Allow_ALI => False);
end if;
case Switches.Kind is
-- We have a list of switches. We add these switches,
-- plus the saved gcc switches.
when List =>
declare
Current : String_List_Id := Switches.Values;
Element : String_Element;
Number : Natural := 0;
begin
while Current /= Nil_String loop
Element := String_Elements.Table (Current);
Number := Number + 1;
Current := Element.Next;
end loop;
declare
New_Args : Argument_List (1 .. Number);
begin
Current := Switches.Values;
for Index in New_Args'Range loop
Element := String_Elements.Table (Current);
Get_Name_String (Element.Value);
New_Args (Index) :=
new String'(Name_Buffer (1 .. Name_Len));
Test_If_Relative_Path
(New_Args (Index), Parent => Data.Dir_Path);
Current := Element.Next;
end loop;
Add_Arguments
(Configuration_Pragmas_Switch
(Arguments_Project) &
New_Args & The_Saved_Gcc_Switches.all);
end;
end;
-- We have a single switch. We add this switch,
-- plus the saved gcc switches.
when Single =>
Get_Name_String (Switches.Value);
declare
New_Args : Argument_List :=
(1 => new String'
(Name_Buffer (1 .. Name_Len)));
begin
Test_If_Relative_Path
(New_Args (1), Parent => Data.Dir_Path);
Add_Arguments
(Configuration_Pragmas_Switch (Arguments_Project) &
New_Args & The_Saved_Gcc_Switches.all);
end;
-- We have no switches from Gnatmake.Compiler.
-- We add the saved gcc switches.
when Undefined =>
Add_Arguments
(Configuration_Pragmas_Switch (Arguments_Project) &
The_Saved_Gcc_Switches.all);
end case;
end if;
end;
end if;
-- Set Output_Is_Object, depending if there is a -S switch.
-- If the bind step is not performed, and there is a -S switch,
-- then we will not check for a valid object file.
Check_For_S_Switch;
end Collect_Arguments;
---------------------
-- Compile_Sources --
---------------------
procedure Compile_Sources
(Main_Source : File_Name_Type;
Args : Argument_List;
First_Compiled_File : out Name_Id;
Most_Recent_Obj_File : out Name_Id;
Most_Recent_Obj_Stamp : out Time_Stamp_Type;
Main_Unit : out Boolean;
Compilation_Failures : out Natural;
Check_Readonly_Files : Boolean := False;
Do_Not_Execute : Boolean := False;
Force_Compilations : Boolean := False;
Keep_Going : Boolean := False;
In_Place_Mode : Boolean := False;
Initialize_ALI_Data : Boolean := True;
Max_Process : Positive := 1)
is
function Compile
(S : Name_Id;
L : Name_Id;
Args : Argument_List) return Process_Id;
-- Compiles S using Args. If S is a GNAT predefined source
-- "-gnatpg" is added to Args. Non blocking call. L corresponds to the
-- expected library file name. Process_Id of the process spawned to
-- execute the compile.
No_Mapping_File : constant Natural := 0;
type Compilation_Data is record
Pid : Process_Id;
Full_Source_File : File_Name_Type;
Lib_File : File_Name_Type;
Source_Unit : Unit_Name_Type;
Mapping_File : Natural := No_Mapping_File;
Project : Project_Id := No_Project;
Syntax_Only : Boolean := False;
Output_Is_Object : Boolean := True;
end record;
Running_Compile : array (1 .. Max_Process) of Compilation_Data;
-- Used to save information about outstanding compilations.
Outstanding_Compiles : Natural := 0;
-- Current number of outstanding compiles
Source_Unit : Unit_Name_Type;
-- Current source unit
Source_File : File_Name_Type;
-- Current source file
Full_Source_File : File_Name_Type;
-- Full name of the current source file
Lib_File : File_Name_Type;
-- Current library file
Full_Lib_File : File_Name_Type;
-- Full name of the current library file
Obj_File : File_Name_Type;
-- Full name of the object file corresponding to Lib_File.
Obj_Stamp : Time_Stamp_Type;
-- Time stamp of the current object file.
Sfile : File_Name_Type;
-- Contains the source file of the units withed by Source_File
ALI : ALI_Id;
-- ALI Id of the current ALI file
Read_Only : Boolean := False;
Compilation_OK : Boolean;
Need_To_Compile : Boolean;
Pid : Process_Id;
Text : Text_Buffer_Ptr;
Mfile : Natural := No_Mapping_File;
Need_To_Check_Standard_Library : Boolean :=
Check_Readonly_Files and not Unique_Compile;
Mapping_File_Arg : String_Access;
procedure Add_Process
(Pid : Process_Id;
Sfile : File_Name_Type;
Afile : File_Name_Type;
Uname : Unit_Name_Type;
Mfile : Natural := No_Mapping_File);
-- Adds process Pid to the current list of outstanding compilation
-- processes and record the full name of the source file Sfile that
-- we are compiling, the name of its library file Afile and the
-- name of its unit Uname. If Mfile is not equal to No_Mapping_File,
-- it is the index of the mapping file used during compilation in the
-- array The_Mapping_File_Names.
procedure Await_Compile
(Sfile : out File_Name_Type;
Afile : out File_Name_Type;
Uname : out Unit_Name_Type;
OK : out Boolean);
-- Awaits that an outstanding compilation process terminates. When
-- it does set Sfile to the name of the source file that was compiled
-- Afile to the name of its library file and Uname to the name of its
-- unit. Note that this time stamp can be used to check whether the
-- compilation did generate an object file. OK is set to True if the
-- compilation succeeded. Note that Sfile, Afile and Uname could be
-- resp. No_File, No_File and No_Name if there were no compilations
-- to wait for.
procedure Collect_Arguments_And_Compile (Source_File : File_Name_Type);
-- Collect arguments from project file (if any) and compile
package Good_ALI is new Table.Table (
Table_Component_Type => ALI_Id,
Table_Index_Type => Natural,
Table_Low_Bound => 1,
Table_Initial => 50,
Table_Increment => 100,
Table_Name => "Make.Good_ALI");
-- Contains the set of valid ALI files that have not yet been scanned.
procedure Record_Good_ALI (A : ALI_Id);
-- Records in the previous set the Id of an ALI file.
function Good_ALI_Present return Boolean;
-- Returns True if any ALI file was recorded in the previous set.
function Get_Next_Good_ALI return ALI_Id;
-- Returns the next good ALI_Id record;
procedure Record_Failure
(File : File_Name_Type;
Unit : Unit_Name_Type;
Found : Boolean := True);
-- Records in the previous table that the compilation for File failed.
-- If Found is False then the compilation of File failed because we
-- could not find it. Records also Unit when possible.
function Bad_Compilation_Count return Natural;
-- Returns the number of compilation failures.
procedure Get_Mapping_File (Project : Project_Id);
-- Get a mapping file name. If there is one to be reused, reuse it.
-- Otherwise, create a new mapping file.
-----------------
-- Add_Process --
-----------------
procedure Add_Process
(Pid : Process_Id;
Sfile : File_Name_Type;
Afile : File_Name_Type;
Uname : Unit_Name_Type;
Mfile : Natural := No_Mapping_File)
is
OC1 : constant Positive := Outstanding_Compiles + 1;
begin
pragma Assert (OC1 <= Max_Process);
pragma Assert (Pid /= Invalid_Pid);
Running_Compile (OC1).Pid := Pid;
Running_Compile (OC1).Full_Source_File := Sfile;
Running_Compile (OC1).Lib_File := Afile;
Running_Compile (OC1).Source_Unit := Uname;
Running_Compile (OC1).Mapping_File := Mfile;
Running_Compile (OC1).Project := Arguments_Project;
Running_Compile (OC1).Syntax_Only := Syntax_Only;
Running_Compile (OC1).Output_Is_Object := Output_Is_Object;
Outstanding_Compiles := OC1;
end Add_Process;
--------------------
-- Await_Compile --
-------------------
procedure Await_Compile
(Sfile : out File_Name_Type;
Afile : out File_Name_Type;
Uname : out File_Name_Type;
OK : out Boolean)
is
Pid : Process_Id;
Project : Project_Id;
begin
pragma Assert (Outstanding_Compiles > 0);
Sfile := No_File;
Afile := No_File;
Uname := No_Name;
OK := False;
-- The loop here is a work-around for a problem on VMS; in some
-- circumstances (shared library and several executables, for
-- example), there are child processes other than compilation
-- processes that are received. Until this problem is resolved,
-- we will ignore such processes.
loop
Wait_Process (Pid, OK);
if Pid = Invalid_Pid then
return;
end if;
for J in Running_Compile'First .. Outstanding_Compiles loop
if Pid = Running_Compile (J).Pid then
Sfile := Running_Compile (J).Full_Source_File;
Afile := Running_Compile (J).Lib_File;
Uname := Running_Compile (J).Source_Unit;
Syntax_Only := Running_Compile (J).Syntax_Only;
Output_Is_Object := Running_Compile (J).Output_Is_Object;
Project := Running_Compile (J).Project;
-- If a mapping file was used by this compilation,
-- get its file name for reuse by a subsequent compilation
if Running_Compile (J).Mapping_File /= No_Mapping_File then
Last_Free_Indices (Project) :=
Last_Free_Indices (Project) + 1;
The_Free_Mapping_File_Indices
(Project, Last_Free_Indices (Project)) :=
Running_Compile (J).Mapping_File;
end if;
-- To actually remove this Pid and related info from
-- Running_Compile replace its entry with the last valid
-- entry in Running_Compile.
if J = Outstanding_Compiles then
null;
else
Running_Compile (J) :=
Running_Compile (Outstanding_Compiles);
end if;
Outstanding_Compiles := Outstanding_Compiles - 1;
return;
end if;
end loop;
-- This child process was not one of our compilation processes;
-- just ignore it for now.
-- raise Program_Error;
end loop;
end Await_Compile;
---------------------------
-- Bad_Compilation_Count --
---------------------------
function Bad_Compilation_Count return Natural is
begin
return Bad_Compilation.Last - Bad_Compilation.First + 1;
end Bad_Compilation_Count;
-----------------------------------
-- Collect_Arguments_And_Compile --
-----------------------------------
procedure Collect_Arguments_And_Compile (Source_File : File_Name_Type) is
begin
-- If arguments have not yet been collected (in Check), collect them
-- now.
if not Arguments_Collected then
Collect_Arguments (Source_File, Args);
end if;
-- If we use mapping file (-P or -C switches), then get one
if Create_Mapping_File then
Get_Mapping_File (Arguments_Project);
end if;
-- If the source is part of a project file, we set the ADA_*_PATHs,
-- check for an eventual library project, and use the full path.
if Arguments_Project /= No_Project then
Prj.Env.Set_Ada_Paths (Arguments_Project, True);
if MLib.Tgt.Support_For_Libraries /= MLib.Tgt.None then
declare
The_Data : Project_Data :=
Projects.Table (Arguments_Project);
Prj : Project_Id := Arguments_Project;
begin
while The_Data.Extended_By /= No_Project loop
Prj := The_Data.Extended_By;
The_Data := Projects.Table (Prj);
end loop;
if The_Data.Library and then not The_Data.Flag1 then
-- Add to the Q all sources of the project that
-- have not been marked
Insert_Project_Sources
(The_Project => Prj,
All_Projects => False,
Into_Q => True);
-- Now mark the project as processed
Projects.Table (Prj).Flag1 := True;
end if;
end;
end if;
-- Change to the object directory of the project file,
-- if necessary.
Change_To_Object_Directory (Arguments_Project);
Pid := Compile (Arguments_Path_Name, Lib_File,
Arguments (1 .. Last_Argument));
else
-- If this is a source outside of any project file, make sure
-- it will be compiled in the object directory of the main project
-- file.
if Main_Project /= No_Project then
Change_To_Object_Directory (Arguments_Project);
end if;
Pid := Compile (Full_Source_File, Lib_File,
Arguments (1 .. Last_Argument));
end if;
end Collect_Arguments_And_Compile;
-------------
-- Compile --
-------------
function Compile
(S : Name_Id;
L : Name_Id;
Args : Argument_List) return Process_Id
is
Comp_Args : Argument_List (Args'First .. Args'Last + 8);
Comp_Next : Integer := Args'First;
Comp_Last : Integer;
function Ada_File_Name (Name : Name_Id) return Boolean;
-- Returns True if Name is the name of an ada source file
-- (i.e. suffix is .ads or .adb)
-------------------
-- Ada_File_Name --
-------------------
function Ada_File_Name (Name : Name_Id) return Boolean is
begin
Get_Name_String (Name);
return
Name_Len > 4
and then Name_Buffer (Name_Len - 3 .. Name_Len - 1) = ".ad"
and then (Name_Buffer (Name_Len) = 'b'
or else
Name_Buffer (Name_Len) = 's');
end Ada_File_Name;
-- Start of processing for Compile
begin
Enter_Into_Obsoleted (S);
-- By default, Syntax_Only is False
Syntax_Only := False;
for J in Args'Range loop
if Args (J).all = "-gnats" then
-- If we compile with -gnats, the bind step and the link step
-- are inhibited. Also, we set Syntax_Only to True, so that
-- we don't fail when we don't find the ALI file, after
-- compilation.
Do_Bind_Step := False;
Do_Link_Step := False;
Syntax_Only := True;
elsif Args (J).all = "-gnatc" then
-- If we compile with -gnatc, the bind step and the link step
-- are inhibited. We set Syntax_Only to False for the case when
-- -gnats was previously specified.
Do_Bind_Step := False;
Do_Link_Step := False;
Syntax_Only := False;
end if;
end loop;
Comp_Args (Comp_Next) := Comp_Flag;
Comp_Next := Comp_Next + 1;
-- Optimize the simple case where the gcc command line looks like
-- gcc -c -I. ... -I- file.adb --into-> gcc -c ... file.adb
if Args (Args'First).all = "-I" & Normalized_CWD
and then Args (Args'Last).all = "-I-"
and then S = Strip_Directory (S)
then
Comp_Last := Comp_Next + Args'Length - 3;
Comp_Args (Comp_Next .. Comp_Last) :=
Args (Args'First + 1 .. Args'Last - 1);
else
Comp_Last := Comp_Next + Args'Length - 1;
Comp_Args (Comp_Next .. Comp_Last) := Args;
end if;
-- Set -gnatpg for predefined files (for this purpose the renamings
-- such as Text_IO do not count as predefined). Note that we strip
-- the directory name from the source file name becase the call to
-- Fname.Is_Predefined_File_Name cannot deal with directory prefixes.
declare
Fname : constant File_Name_Type := Strip_Directory (S);
begin
if Is_Predefined_File_Name (Fname, False) then
if Check_Readonly_Files then
Comp_Last := Comp_Last + 1;
Comp_Args (Comp_Last) := GNAT_Flag;
else
Make_Failed
("not allowed to compile """ &
Get_Name_String (Fname) &
"""; use -a switch, or compile file with " &
"""-gnatg"" switch");
end if;
end if;
end;
-- Now check if the file name has one of the suffixes familiar to
-- the gcc driver. If this is not the case then add the ada flag
-- "-x ada".
if not Ada_File_Name (S) and then not Targparm.AAMP_On_Target then
Comp_Last := Comp_Last + 1;
Comp_Args (Comp_Last) := Ada_Flag_1;
Comp_Last := Comp_Last + 1;
Comp_Args (Comp_Last) := Ada_Flag_2;
end if;
if L /= Strip_Directory (L) or else Object_Directory_Path /= null then
-- Build -o argument.
Get_Name_String (L);
for J in reverse 1 .. Name_Len loop
if Name_Buffer (J) = '.' then
Name_Len := J + Object_Suffix'Length - 1;
Name_Buffer (J .. Name_Len) := Object_Suffix;
exit;
end if;
end loop;
Comp_Last := Comp_Last + 1;
Comp_Args (Comp_Last) := Output_Flag;
Comp_Last := Comp_Last + 1;
-- If an object directory was specified, prepend the object file
-- name with this object directory.
if Object_Directory_Path /= null then
Comp_Args (Comp_Last) :=
new String'(Object_Directory_Path.all &
Name_Buffer (1 .. Name_Len));
else
Comp_Args (Comp_Last) :=
new String'(Name_Buffer (1 .. Name_Len));
end if;
end if;
if Create_Mapping_File then
Comp_Last := Comp_Last + 1;
Comp_Args (Comp_Last) := Mapping_File_Arg;
end if;
Get_Name_String (S);
Comp_Last := Comp_Last + 1;
Comp_Args (Comp_Last) := new String'(Name_Buffer (1 .. Name_Len));
GNAT.OS_Lib.Normalize_Arguments (Comp_Args (Args'First .. Comp_Last));
Display (Gcc.all, Comp_Args (Args'First .. Comp_Last));
if Gcc_Path = null then
Make_Failed ("error, unable to locate ", Gcc.all);
end if;
return
GNAT.OS_Lib.Non_Blocking_Spawn
(Gcc_Path.all, Comp_Args (Args'First .. Comp_Last));
end Compile;
----------------------
-- Get_Mapping_File --
----------------------
procedure Get_Mapping_File (Project : Project_Id) is
begin
-- If there is a mapping file ready to be reused, reuse it
if Last_Free_Indices (Project) > 0 then
Mfile := The_Free_Mapping_File_Indices
(Project, Last_Free_Indices (Project));
Last_Free_Indices (Project) := Last_Free_Indices (Project) - 1;
-- Otherwise, create and initialize a new one
else
Init_Mapping_File (Project => Project, File_Index => Mfile);
end if;
-- Put the name in the mapping file argument for the invocation
-- of the compiler.
Free (Mapping_File_Arg);
Mapping_File_Arg :=
new String'("-gnatem=" &
Get_Name_String
(The_Mapping_File_Names (Project, Mfile)));
end Get_Mapping_File;
-----------------------
-- Get_Next_Good_ALI --
-----------------------
function Get_Next_Good_ALI return ALI_Id is
ALI : ALI_Id;
begin
pragma Assert (Good_ALI_Present);
ALI := Good_ALI.Table (Good_ALI.Last);
Good_ALI.Decrement_Last;
return ALI;
end Get_Next_Good_ALI;
----------------------
-- Good_ALI_Present --
----------------------
function Good_ALI_Present return Boolean is
begin
return Good_ALI.First <= Good_ALI.Last;
end Good_ALI_Present;
--------------------
-- Record_Failure --
--------------------
procedure Record_Failure
(File : File_Name_Type;
Unit : Unit_Name_Type;
Found : Boolean := True)
is
begin
Bad_Compilation.Increment_Last;
Bad_Compilation.Table (Bad_Compilation.Last) := (File, Unit, Found);
end Record_Failure;
---------------------
-- Record_Good_ALI --
---------------------
procedure Record_Good_ALI (A : ALI_Id) is
begin
Good_ALI.Increment_Last;
Good_ALI.Table (Good_ALI.Last) := A;
end Record_Good_ALI;
-- Start of processing for Compile_Sources
begin
pragma Assert (Args'First = 1);
-- Package and Queue initializations.
Good_ALI.Init;
Output.Set_Standard_Error;
if First_Q_Initialization then
Init_Q;
end if;
if Initialize_ALI_Data then
Initialize_ALI;
Initialize_ALI_Source;
end if;
-- The following two flags affect the behavior of ALI.Set_Source_Table.
-- We set Opt.Check_Source_Files to True to ensure that source file
-- time stamps are checked, and we set Opt.All_Sources to False to
-- avoid checking the presence of the source files listed in the
-- source dependency section of an ali file (which would be a mistake
-- since the ali file may be obsolete).
Opt.Check_Source_Files := True;
Opt.All_Sources := False;
Insert_Q (Main_Source);
Mark (Main_Source);
First_Compiled_File := No_File;
Most_Recent_Obj_File := No_File;
Most_Recent_Obj_Stamp := Empty_Time_Stamp;
Main_Unit := False;
-- Keep looping until there is no more work to do (the Q is empty)
-- and all the outstanding compilations have terminated
Make_Loop : while not Empty_Q or else Outstanding_Compiles > 0 loop
-- If the user does not want to keep going in case of errors then
-- wait for the remaining outstanding compiles and then exit.
if Bad_Compilation_Count > 0 and then not Keep_Going then
while Outstanding_Compiles > 0 loop
Await_Compile
(Full_Source_File, Lib_File, Source_Unit, Compilation_OK);
if not Compilation_OK then
Record_Failure (Full_Source_File, Source_Unit);
end if;
end loop;
exit Make_Loop;
end if;
-- PHASE 1: Check if there is more work that we can do (ie the Q
-- is non empty). If there is, do it only if we have not yet used
-- up all the available processes.
if not Empty_Q and then Outstanding_Compiles < Max_Process then
Extract_From_Q (Source_File, Source_Unit);
Full_Source_File := Osint.Full_Source_Name (Source_File);
Lib_File := Osint.Lib_File_Name (Source_File);
Full_Lib_File := Osint.Full_Lib_File_Name (Lib_File);
-- If this source has already been compiled, the executable is
-- obsolete.
if Is_In_Obsoleted (Source_File) then
Executable_Obsolete := True;
end if;
-- If the library file is an Ada library skip it
if Full_Lib_File /= No_File
and then In_Ada_Lib_Dir (Full_Lib_File)
then
Verbose_Msg (Lib_File, "is in an Ada library", Prefix => " ");
-- If the library file is a read-only library skip it, but only
-- if, when using project files, this library file is in the
-- right object directory (a read-only ALI file in the object
-- directory of a project being extended should not be skipped).
elsif Full_Lib_File /= No_File
and then not Check_Readonly_Files
and then Is_Readonly_Library (Full_Lib_File)
and then Is_In_Object_Directory (Source_File, Full_Lib_File)
then
Verbose_Msg
(Lib_File, "is a read-only library", Prefix => " ");
-- The source file that we are checking cannot be located
elsif Full_Source_File = No_File then
Record_Failure (Source_File, Source_Unit, False);
-- Source and library files can be located but are internal
-- files
elsif not Check_Readonly_Files
and then Full_Lib_File /= No_File
and then Is_Internal_File_Name (Source_File)
then
if Force_Compilations then
Fail
("not allowed to compile """ &
Get_Name_String (Source_File) &
"""; use -a switch, or compile file with " &
"""-gnatg"" switch");
end if;
Verbose_Msg
(Lib_File, "is an internal library", Prefix => " ");
-- The source file that we are checking can be located
else
Arguments_Collected := False;
-- Don't waste any time if we have to recompile anyway
Obj_Stamp := Empty_Time_Stamp;
Need_To_Compile := Force_Compilations;
if not Force_Compilations then
Read_Only :=
Full_Lib_File /= No_File
and then not Check_Readonly_Files
and then Is_Readonly_Library (Full_Lib_File);
Check (Source_File, Args, Lib_File, Read_Only,
ALI, Obj_File, Obj_Stamp);
Need_To_Compile := (ALI = No_ALI_Id);
end if;
if not Need_To_Compile then
-- The ALI file is up-to-date. Record its Id.
Record_Good_ALI (ALI);
-- Record the time stamp of the most recent object file
-- as long as no (re)compilations are needed.
if First_Compiled_File = No_File
and then (Most_Recent_Obj_File = No_File
or else Obj_Stamp > Most_Recent_Obj_Stamp)
then
Most_Recent_Obj_File := Obj_File;
Most_Recent_Obj_Stamp := Obj_Stamp;
end if;
else
-- Is this the first file we have to compile?
if First_Compiled_File = No_File then
First_Compiled_File := Full_Source_File;
Most_Recent_Obj_File := No_File;
if Do_Not_Execute then
exit Make_Loop;
end if;
end if;
if In_Place_Mode then
-- If the library file was not found, then save the
-- library file near the source file.
if Full_Lib_File = No_File then
Get_Name_String (Full_Source_File);
for J in reverse 1 .. Name_Len loop
if Name_Buffer (J) = '.' then
Name_Buffer (J + 1 .. J + 3) := "ali";
Name_Len := J + 3;
exit;
end if;
end loop;
Lib_File := Name_Find;
-- If the library file was found, then save the
-- library file in the same place.
else
Lib_File := Full_Lib_File;
end if;
end if;
-- Start the compilation and record it. We can do this
-- because there is at least one free process.
Collect_Arguments_And_Compile (Source_File);
-- Make sure we could successfully start the compilation
if Pid = Invalid_Pid then
Record_Failure (Full_Source_File, Source_Unit);
else
Add_Process
(Pid,
Full_Source_File,
Lib_File,
Source_Unit,
Mfile);
end if;
end if;
end if;
end if;
-- PHASE 2: Now check if we should wait for a compilation to
-- finish. This is the case if all the available processes are
-- busy compiling sources or there is nothing else to do
-- (that is the Q is empty and there are no good ALIs to process).
if Outstanding_Compiles = Max_Process
or else (Empty_Q
and then not Good_ALI_Present
and then Outstanding_Compiles > 0)
then
Await_Compile
(Full_Source_File, Lib_File, Source_Unit, Compilation_OK);
if not Compilation_OK then
Record_Failure (Full_Source_File, Source_Unit);
end if;
if Compilation_OK or else Keep_Going then
-- Re-read the updated library file
declare
Saved_Object_Consistency : constant Boolean :=
Opt.Check_Object_Consistency;
begin
-- If compilation was not OK, or if output is not an
-- object file and we don't do the bind step, don't check
-- for object consistency.
Opt.Check_Object_Consistency :=
Opt.Check_Object_Consistency
and Compilation_OK
and (Output_Is_Object or Do_Bind_Step);
Text := Read_Library_Info (Lib_File);
-- Restore Check_Object_Consistency to its initial value
Opt.Check_Object_Consistency := Saved_Object_Consistency;
end;
-- If an ALI file was generated by this compilation, scan
-- the ALI file and record it.
-- If the scan fails, a previous ali file is inconsistent with
-- the unit just compiled.
if Text /= null then
ALI :=
Scan_ALI (Lib_File, Text, Ignore_ED => False, Err => True);
if ALI = No_ALI_Id then
-- Record a failure only if not already done
if Compilation_OK then
Inform
(Lib_File,
"incompatible ALI file, please recompile");
Record_Failure (Full_Source_File, Source_Unit);
end if;
else
Free (Text);
Record_Good_ALI (ALI);
end if;
-- If we could not read the ALI file that was just generated
-- then there could be a problem reading either the ALI or the
-- corresponding object file (if Opt.Check_Object_Consistency
-- is set Read_Library_Info checks that the time stamp of the
-- object file is more recent than that of the ALI). For an
-- example of problems caught by this test see [6625-009].
-- However, we record a failure only if not already done.
else
if Compilation_OK and not Syntax_Only then
Inform
(Lib_File,
"WARNING: ALI or object file not found after compile");
Record_Failure (Full_Source_File, Source_Unit);
end if;
end if;
end if;
end if;
-- PHASE 3: Check if we recorded good ALI files. If yes process
-- them now in the order in which they have been recorded. There
-- are two occasions in which we record good ali files. The first is
-- in phase 1 when, after scanning an existing ALI file we realize
-- it is up-to-date, the second instance is after a successful
-- compilation.
while Good_ALI_Present loop
ALI := Get_Next_Good_ALI;
-- If we are processing the library file corresponding to the
-- main source file check if this source can be a main unit.
if ALIs.Table (ALI).Sfile = Main_Source then
Main_Unit := ALIs.Table (ALI).Main_Program /= None;
end if;
-- The following adds the standard library (s-stalib) to the
-- list of files to be handled by gnatmake: this file and any
-- files it depends on are always included in every bind,
-- even if they are not in the explicit dependency list.
-- Of course, it is not added if Suppress_Standard_Library
-- is True.
-- However, to avoid annoying output about s-stalib.ali being
-- read only, when "-v" is used, we add the standard library
-- only when "-a" is used.
if Need_To_Check_Standard_Library then
Need_To_Check_Standard_Library := False;
if not Targparm.Suppress_Standard_Library_On_Target then
declare
Sfile : Name_Id;
Add_It : Boolean := True;
begin
Name_Len := Standard_Library_Package_Body_Name'Length;
Name_Buffer (1 .. Name_Len) :=
Standard_Library_Package_Body_Name;
Sfile := Name_Enter;
-- If we have a special runtime, we add the standard
-- library only if we can find it.
if Opt.RTS_Switch then
Add_It := Find_File (Sfile, Osint.Source) /= No_File;
end if;
if Add_It then
if Is_Marked (Sfile) then
if Is_In_Obsoleted (Sfile) then
Executable_Obsolete := True;
end if;
else
Insert_Q (Sfile);
Mark (Sfile);
end if;
end if;
end;
end if;
end if;
-- Now insert in the Q the unmarked source files (i.e. those
-- which have never been inserted in the Q and hence never
-- considered). Only do that if Unique_Compile is False.
if not Unique_Compile then
for J in
ALIs.Table (ALI).First_Unit .. ALIs.Table (ALI).Last_Unit
loop
for K in
Units.Table (J).First_With .. Units.Table (J).Last_With
loop
Sfile := Withs.Table (K).Sfile;
Add_Dependency (ALIs.Table (ALI).Sfile, Sfile);
if Is_In_Obsoleted (Sfile) then
Executable_Obsolete := True;
end if;
if Sfile = No_File then
Debug_Msg ("Skipping generic:", Withs.Table (K).Uname);
elsif Is_Marked (Sfile) then
Debug_Msg ("Skipping marked file:", Sfile);
elsif not Check_Readonly_Files
and then Is_Internal_File_Name (Sfile)
then
Debug_Msg ("Skipping internal file:", Sfile);
else
Insert_Q (Sfile, Withs.Table (K).Uname);
Mark (Sfile);
end if;
end loop;
end loop;
end if;
end loop;
if Opt.Display_Compilation_Progress then
Write_Str ("completed ");
Write_Int (Int (Q_Front));
Write_Str (" out of ");
Write_Int (Int (Q.Last));
Write_Str (" (");
Write_Int (Int ((Q_Front * 100) / (Q.Last - Q.First)));
Write_Str ("%)...");
Write_Eol;
end if;
end loop Make_Loop;
Compilation_Failures := Bad_Compilation_Count;
-- Compilation is finished
-- Delete any temporary configuration pragma file
Delete_Temp_Config_Files;
end Compile_Sources;
----------------------------------
-- Configuration_Pragmas_Switch --
----------------------------------
function Configuration_Pragmas_Switch
(For_Project : Project_Id) return Argument_List
is
The_Packages : Package_Id;
Gnatmake : Package_Id;
Compiler : Package_Id;
Global_Attribute : Variable_Value := Nil_Variable_Value;
Local_Attribute : Variable_Value := Nil_Variable_Value;
Global_Attribute_Present : Boolean := False;
Local_Attribute_Present : Boolean := False;
Result : Argument_List (1 .. 3);
Last : Natural := 0;
function Absolute_Path
(Path : Name_Id;
Project : Project_Id) return String;
-- Returns an absolute path for a configuration pragmas file.
-------------------
-- Absolute_Path --
-------------------
function Absolute_Path
(Path : Name_Id;
Project : Project_Id) return String
is
begin
Get_Name_String (Path);
declare
Path_Name : constant String := Name_Buffer (1 .. Name_Len);
begin
if Is_Absolute_Path (Path_Name) then
return Path_Name;
else
declare
Parent_Directory : constant String :=
Get_Name_String (Projects.Table (Project).Directory);
begin
if Parent_Directory (Parent_Directory'Last) =
Directory_Separator
then
return Parent_Directory & Path_Name;
else
return Parent_Directory & Directory_Separator & Path_Name;
end if;
end;
end if;
end;
end Absolute_Path;
-- Start of processing for Configuration_Pragmas_Switch
begin
Prj.Env.Create_Config_Pragmas_File (For_Project, Main_Project);
if Projects.Table (For_Project).Config_File_Name /= No_Name then
Temporary_Config_File :=
Projects.Table (For_Project).Config_File_Temp;
Last := 1;
Result (1) :=
new String'
("-gnatec=" &
Get_Name_String
(Projects.Table (For_Project).Config_File_Name));
else
Temporary_Config_File := False;
end if;
-- Check for attribute Builder'Global_Configuration_Pragmas
The_Packages := Projects.Table (Main_Project).Decl.Packages;
Gnatmake :=
Prj.Util.Value_Of
(Name => Name_Builder,
In_Packages => The_Packages);
if Gnatmake /= No_Package then
Global_Attribute := Prj.Util.Value_Of
(Variable_Name => Name_Global_Configuration_Pragmas,
In_Variables => Packages.Table (Gnatmake).Decl.Attributes);
Global_Attribute_Present :=
Global_Attribute /= Nil_Variable_Value
and then Get_Name_String (Global_Attribute.Value) /= "";
if Global_Attribute_Present then
declare
Path : constant String :=
Absolute_Path
(Global_Attribute.Value, Global_Attribute.Project);
begin
if not Is_Regular_File (Path) then
Make_Failed
("cannot find configuration pragmas file ", Path);
end if;
Last := Last + 1;
Result (Last) := new String'("-gnatec=" & Path);
end;
end if;
end if;
-- Check for attribute Compiler'Local_Configuration_Pragmas
The_Packages := Projects.Table (For_Project).Decl.Packages;
Compiler :=
Prj.Util.Value_Of
(Name => Name_Compiler,
In_Packages => The_Packages);
if Compiler /= No_Package then
Local_Attribute := Prj.Util.Value_Of
(Variable_Name => Name_Local_Configuration_Pragmas,
In_Variables => Packages.Table (Compiler).Decl.Attributes);
Local_Attribute_Present :=
Local_Attribute /= Nil_Variable_Value
and then Get_Name_String (Local_Attribute.Value) /= "";
if Local_Attribute_Present then
declare
Path : constant String :=
Absolute_Path
(Local_Attribute.Value, Local_Attribute.Project);
begin
if not Is_Regular_File (Path) then
Make_Failed
("cannot find configuration pragmas file ", Path);
end if;
Last := Last + 1;
Result (Last) := new String'("-gnatec=" & Path);
end;
end if;
end if;
return Result (1 .. Last);
end Configuration_Pragmas_Switch;
---------------
-- Debug_Msg --
---------------
procedure Debug_Msg (S : String; N : Name_Id) is
begin
if Debug.Debug_Flag_W then
Write_Str (" ... ");
Write_Str (S);
Write_Str (" ");
Write_Name (N);
Write_Eol;
end if;
end Debug_Msg;
---------------------------
-- Delete_All_Temp_Files --
---------------------------
procedure Delete_All_Temp_Files is
begin
if Gnatmake_Called and not Debug.Debug_Flag_N then
Delete_Mapping_Files;
Delete_Temp_Config_Files;
Prj.Env.Delete_All_Path_Files;
end if;
end Delete_All_Temp_Files;
--------------------------
-- Delete_Mapping_Files --
--------------------------
procedure Delete_Mapping_Files is
Success : Boolean;
begin
if not Debug.Debug_Flag_N then
if The_Mapping_File_Names /= null then
for Project in The_Mapping_File_Names'Range (1) loop
for Index in 1 .. Last_Mapping_File_Names (Project) loop
Delete_File
(Name => Get_Name_String
(The_Mapping_File_Names (Project, Index)),
Success => Success);
end loop;
end loop;
end if;
end if;
end Delete_Mapping_Files;
------------------------------
-- Delete_Temp_Config_Files --
------------------------------
procedure Delete_Temp_Config_Files is
Success : Boolean;
begin
if (not Debug.Debug_Flag_N) and Main_Project /= No_Project then
for Project in 1 .. Projects.Last loop
if Projects.Table (Project).Config_File_Temp then
if Opt.Verbose_Mode then
Write_Str ("Deleting temp configuration file """);
Write_Str (Get_Name_String
(Projects.Table (Project).Config_File_Name));
Write_Line ("""");
end if;
Delete_File
(Name => Get_Name_String
(Projects.Table (Project).Config_File_Name),
Success => Success);
-- Make sure that we don't have a config file for this
-- project, in case when there are several mains.
-- In this case, we will recreate another config file:
-- we cannot reuse the one that we just deleted!
Projects.Table (Project).Config_Checked := False;
Projects.Table (Project).Config_File_Name := No_Name;
Projects.Table (Project).Config_File_Temp := False;
end if;
end loop;
end if;
end Delete_Temp_Config_Files;
-------------
-- Display --
-------------
procedure Display (Program : String; Args : Argument_List) is
begin
pragma Assert (Args'First = 1);
if Display_Executed_Programs then
Write_Str (Program);
for J in Args'Range loop
-- Do not display the mapping file argument automatically
-- created when using a project file.
if Main_Project = No_Project
or else Debug.Debug_Flag_N
or else Args (J)'Length < 8
or else
Args (J)(Args (J)'First .. Args (J)'First + 6) /= "-gnatem"
then
-- When -dn is not specified, do not display the config
-- pragmas switch (-gnatec) for the temporary file created
-- by the project manager (always the first -gnatec switch).
-- Reset Temporary_Config_File to False so that the eventual
-- other -gnatec switches will be displayed.
if (not Debug.Debug_Flag_N)
and then Temporary_Config_File
and then Args (J)'Length > 7
and then Args (J)(Args (J)'First .. Args (J)'First + 6)
= "-gnatec"
then
Temporary_Config_File := False;
-- Do not display the -F=mapping_file switch for gnatbind,
-- if -dn is not specified.
elsif Debug.Debug_Flag_N
or else Args (J)'Length < 4
or else Args (J)(Args (J)'First .. Args (J)'First + 2) /=
"-F="
then
Write_Str (" ");
Write_Str (Args (J).all);
end if;
end if;
end loop;
Write_Eol;
end if;
end Display;
----------------------
-- Display_Commands --
----------------------
procedure Display_Commands (Display : Boolean := True) is
begin
Display_Executed_Programs := Display;
end Display_Commands;
-------------
-- Empty_Q --
-------------
function Empty_Q return Boolean is
begin
if Debug.Debug_Flag_P then
Write_Str (" Q := [");
for J in Q_Front .. Q.Last - 1 loop
Write_Str (" ");
Write_Name (Q.Table (J).File);
Write_Eol;
Write_Str (" ");
end loop;
Write_Str ("]");
Write_Eol;
end if;
return Q_Front >= Q.Last;
end Empty_Q;
--------------------------
-- Enter_Into_Obsoleted --
--------------------------
procedure Enter_Into_Obsoleted (F : Name_Id) is
Name : constant String := Get_Name_String (F);
First : Natural := Name'Last;
F2 : Name_Id := F;
begin
while First > Name'First
and then Name (First - 1) /= Directory_Separator
and then Name (First - 1) /= '/'
loop
First := First - 1;
end loop;
if First /= Name'First then
Name_Len := 0;
Add_Str_To_Name_Buffer (Name (First .. Name'Last));
F2 := Name_Find;
end if;
Debug_Msg ("New entry in Obsoleted table:", F2);
Obsoleted.Set (F2, True);
end Enter_Into_Obsoleted;
---------------------
-- Extract_Failure --
---------------------
procedure Extract_Failure
(File : out File_Name_Type;
Unit : out Unit_Name_Type;
Found : out Boolean)
is
begin
File := Bad_Compilation.Table (Bad_Compilation.Last).File;
Unit := Bad_Compilation.Table (Bad_Compilation.Last).Unit;
Found := Bad_Compilation.Table (Bad_Compilation.Last).Found;
Bad_Compilation.Decrement_Last;
end Extract_Failure;
--------------------
-- Extract_From_Q --
--------------------
procedure Extract_From_Q
(Source_File : out File_Name_Type;
Source_Unit : out Unit_Name_Type)
is
File : constant File_Name_Type := Q.Table (Q_Front).File;
Unit : constant Unit_Name_Type := Q.Table (Q_Front).Unit;
begin
if Debug.Debug_Flag_Q then
Write_Str (" Q := Q - [ ");
Write_Name (File);
Write_Str (" ]");
Write_Eol;
end if;
Q_Front := Q_Front + 1;
Source_File := File;
Source_Unit := Unit;
end Extract_From_Q;
-----------------
-- Make_Failed --
-----------------
procedure Make_Failed (S1 : String; S2 : String := ""; S3 : String := "") is
begin
Delete_All_Temp_Files;
Osint.Fail (S1, S2, S3);
end Make_Failed;
--------------
-- Gnatmake --
--------------
procedure Gnatmake is
Main_Source_File : File_Name_Type;
-- The source file containing the main compilation unit
Compilation_Failures : Natural;
Total_Compilation_Failures : Natural := 0;
Is_Main_Unit : Boolean;
-- Set to True by Compile_Sources if the Main_Source_File can be a
-- main unit.
Main_ALI_File : File_Name_Type;
-- The ali file corresponding to Main_Source_File
Executable : File_Name_Type := No_File;
-- The file name of an executable
Non_Std_Executable : Boolean := False;
-- Non_Std_Executable is set to True when there is a possibility
-- that the linker will not choose the correct executable file name.
Current_Work_Dir : constant String_Access :=
new String'(Get_Current_Dir);
-- The current working directory, used to modify some relative path
-- switches on the command line when a project file is used.
begin
Gnatmake_Called := True;
Install_Int_Handler (Sigint_Intercepted'Access);
Do_Compile_Step := True;
Do_Bind_Step := True;
Do_Link_Step := True;
Obsoleted.Reset;
Make.Initialize;
Bind_Shared := No_Shared_Switch'Access;
Link_With_Shared_Libgcc := No_Shared_Libgcc_Switch'Access;
Bind_Shared_Known := False;
Failed_Links.Set_Last (0);
Successful_Links.Set_Last (0);
if Hostparm.Java_VM then
Gcc := new String'("jgnat");
Gnatbind := new String'("jgnatbind");
Gnatlink := new String'("jgnatlink");
-- Do not check for an object file (".o") when compiling to
-- Java bytecode since ".class" files are generated instead.
Opt.Check_Object_Consistency := False;
end if;
-- Special case when switch -B was specified
if Build_Bind_And_Link_Full_Project then
-- When switch -B is specified, there must be a project file
if Main_Project = No_Project then
Make_Failed ("-B cannot be used without a project file");
-- No main program may be specified on the command line
elsif Osint.Number_Of_Files /= 0 then
Make_Failed ("-B cannot be used with a main specified on " &
"the command line");
-- And the project file cannot be a library project file
elsif Projects.Table (Main_Project).Library then
Make_Failed ("-B cannot be used for a library project file");
else
Insert_Project_Sources
(The_Project => Main_Project,
All_Projects => Unique_Compile_All_Projects,
Into_Q => False);
-- If there are no sources to compile, we fail
if Osint.Number_Of_Files = 0 then
Make_Failed ("no sources to compile");
end if;
-- Specify -n for gnatbind and add the ALI files of all the
-- sources, except the one which is a fake main subprogram:
-- this is the one for the binder generated file and it will be
-- transmitted to gnatlink. These sources are those that are
-- in the queue.
Add_Switch ("-n", Binder, And_Save => True);
for J in Q.First .. Q.Last - 1 loop
Add_Switch
(Get_Name_String
(Lib_File_Name (Q.Table (J).File)),
Binder, And_Save => True);
end loop;
end if;
elsif Main_Project /= No_Project then
-- If the main project file is a library project file, main(s)
-- cannot be specified on the command line.
if Osint.Number_Of_Files /= 0 then
if Projects.Table (Main_Project).Library
and then not Unique_Compile
and then ((not Make_Steps) or else Bind_Only or else Link_Only)
then
Make_Failed ("cannot specify a main program " &
"on the command line for a library project file");
else
-- Check that each main on the command line is a source of a
-- project file and, if there are several mains, each of them
-- is a source of the same project file.
Mains.Reset;
declare
Real_Main_Project : Project_Id := No_Project;
-- The project of the first main
Proj : Project_Id := No_Project;
-- The project of the current main
begin
-- Check each main
loop
declare
Main : constant String := Mains.Next_Main;
-- The name specified on the command line may include
-- directory information.
File_Name : constant String := Base_Name (Main);
-- The simple file name of the current main main
begin
exit when Main = "";
-- Get the project of the current main
Proj := Prj.Env.Project_Of (File_Name, Main_Project);
-- Fail if the current main is not a source of a
-- project.
if Proj = No_Project then
Make_Failed
("""" & Main &
""" is not a source of any project");
else
-- If there is directory information, check that
-- the source exists and, if it does, that the path
-- is the actual path of a source of a project.
if Main /= File_Name then
declare
Data : constant Project_Data :=
Projects.Table (Main_Project);
Project_Path : constant String :=
Prj.Env.File_Name_Of_Library_Unit_Body
(Name => File_Name,
Project => Main_Project,
Main_Project_Only => False,
Full_Path => True);
Real_Path : String_Access :=
Locate_Regular_File
(Main &
Get_Name_String
(Data.Naming.Current_Body_Suffix),
"");
begin
if Real_Path = null then
Real_Path :=
Locate_Regular_File
(Main &
Get_Name_String
(Data.Naming.Current_Spec_Suffix),
"");
end if;
if Real_Path = null then
Real_Path :=
Locate_Regular_File (Main, "");
end if;
-- Fail if the file cannot be found
if Real_Path = null then
Make_Failed
("file """ & Main & """ does not exist");
end if;
declare
Normed_Path : constant String :=
Normalize_Pathname
(Real_Path.all,
Case_Sensitive => False);
begin
Free (Real_Path);
-- Fail if it is not the correct path
if Normed_Path /= Project_Path then
if Verbose_Mode then
Write_Str (Normed_Path);
Write_Str (" /= ");
Write_Line (Project_Path);
end if;
Make_Failed
("""" & Main &
""" is not a source of any project");
end if;
end;
end;
end if;
if not Unique_Compile then
-- Record the project, if it is the first main
if Real_Main_Project = No_Project then
Real_Main_Project := Proj;
elsif Proj /= Real_Main_Project then
-- Fail, as the current main is not a source
-- of the same project as the first main.
Make_Failed
("""" & Main &
""" is not a source of project " &
Get_Name_String
(Projects.Table
(Real_Main_Project).Name));
end if;
end if;
end if;
-- If -u and -U are not used, we may have mains that
-- are sources of a project that is not the one
-- specified with switch -P.
if not Unique_Compile then
Main_Project := Real_Main_Project;
end if;
end;
end loop;
end;
end if;
-- If no mains have been specified on the command line,
-- and we are using a project file, we either find the main(s)
-- in the attribute Main of the main project, or we put all
-- the sources of the project file as mains.
else
declare
Value : String_List_Id := Projects.Table (Main_Project).Mains;
begin
-- The attribute Main is an empty list or not specified,
-- or else gnatmake was invoked with the switch "-u".
if Value = Prj.Nil_String or else Unique_Compile then
if (not Make_Steps) or else Compile_Only
or else not Projects.Table (Main_Project).Library
then
-- First make sure that the binder and the linker
-- will not be invoked.
Do_Bind_Step := False;
Do_Link_Step := False;
-- Put all the sources in the queue
Insert_Project_Sources
(The_Project => Main_Project,
All_Projects => Unique_Compile_All_Projects,
Into_Q => False);
-- If there are no sources to compile, we fail
if Osint.Number_Of_Files = 0 then
Make_Failed ("no sources to compile");
end if;
end if;
else
-- The attribute Main is not an empty list.
-- Put all the main subprograms in the list as if there
-- were specified on the command line. However, if attribute
-- Languages includes a language other than Ada, only
-- include the Ada mains; if there is no Ada main, compile
-- all the sources of the project.
declare
Data : constant Project_Data :=
Projects.Table (Main_Project);
Languages : constant Variable_Value :=
Prj.Util.Value_Of
(Name_Languages, Data.Decl.Attributes);
Current : String_List_Id;
Element : String_Element;
Foreign_Language : Boolean := False;
At_Least_One_Main : Boolean := False;
begin
-- First, determine if there is a foreign language in
-- attribute Languages.
if not Languages.Default then
Current := Languages.Values;
Look_For_Foreign :
while Current /= Nil_String loop
Element := String_Elements.Table (Current);
Get_Name_String (Element.Value);
To_Lower (Name_Buffer (1 .. Name_Len));
if Name_Buffer (1 .. Name_Len) /= "ada" then
Foreign_Language := True;
exit Look_For_Foreign;
end if;
Current := Element.Next;
end loop Look_For_Foreign;
end if;
-- Then, find all mains, or if there is a foreign
-- language, all the Ada mains.
while Value /= Prj.Nil_String loop
Get_Name_String (String_Elements.Table (Value).Value);
-- To know if a main is an Ada main, get its project.
-- It should be the project specified on the command
-- line.
if (not Foreign_Language) or else
Prj.Env.Project_Of
(Name_Buffer (1 .. Name_Len), Main_Project) =
Main_Project
then
At_Least_One_Main := True;
Osint.Add_File
(Get_Name_String
(String_Elements.Table (Value).Value));
end if;
Value := String_Elements.Table (Value).Next;
end loop;
-- If we did not get any main, it means that all mains
-- in attribute Mains are in a foreign language and -B
-- was not specified to gnatmake; so, we fail.
if not At_Least_One_Main then
Make_Failed
("no Ada mains; use -B to build foreign main");
end if;
end;
end if;
end;
end if;
end if;
if Opt.Verbose_Mode then
Write_Eol;
Write_Str ("GNATMAKE ");
Write_Str (Gnatvsn.Gnat_Version_String);
Write_Str (" Copyright 1995-2004 Free Software Foundation, Inc.");
Write_Eol;
end if;
if Osint.Number_Of_Files = 0 then
if Main_Project /= No_Project
and then Projects.Table (Main_Project).Library
then
if Do_Bind_Step
and then not Projects.Table (Main_Project).Standalone_Library
then
Make_Failed ("only stand-alone libraries may be bound");
end if;
-- Add the default search directories to be able to find libgnat
Osint.Add_Default_Search_Dirs;
-- And bind and or link the library
MLib.Prj.Build_Library
(For_Project => Main_Project,
Gnatbind => Gnatbind.all,
Gnatbind_Path => Gnatbind_Path,
Gcc => Gcc.all,
Gcc_Path => Gcc_Path,
Bind => Bind_Only,
Link => Link_Only);
Exit_Program (E_Success);
else
-- Output usage information if no files to compile
Usage;
Exit_Program (E_Fatal);
end if;
end if;
-- If -M was specified, behave as if -n was specified
if Opt.List_Dependencies then
Opt.Do_Not_Execute := True;
end if;
-- Note that Osint.Next_Main_Source will always return the (possibly
-- abbreviated file) without any directory information.
Main_Source_File := Next_Main_Source;
Add_Switch ("-I-", Binder, And_Save => True);
Add_Switch ("-I-", Compiler, And_Save => True);
if Main_Project = No_Project then
if Opt.Look_In_Primary_Dir then
Add_Switch
("-I" &
Normalize_Directory_Name
(Get_Primary_Src_Search_Directory.all).all,
Compiler, Append_Switch => False,
And_Save => False);
Add_Switch ("-aO" & Normalized_CWD,
Binder,
Append_Switch => False,
And_Save => False);
end if;
else
-- If we use a project file, we have already checked that a main
-- specified on the command line with directory information has the
-- path name corresponding to a correct source in the project tree.
-- So, we don't need the directory information to be taken into
-- account by Find_File, and in fact it may lead to take the wrong
-- sources for other compilation units, when there are extending
-- projects.
Opt.Look_In_Primary_Dir := False;
end if;
-- If the user wants a program without a main subprogram, add the
-- appropriate switch to the binder.
if Opt.No_Main_Subprogram then
Add_Switch ("-z", Binder, And_Save => True);
end if;
if Main_Project /= No_Project then
if Projects.Table (Main_Project).Object_Directory = No_Name then
Make_Failed ("no sources to compile");
end if;
-- Change the current directory to the object directory of the main
-- project.
begin
Project_Object_Directory := No_Project;
Change_To_Object_Directory (Main_Project);
exception
when Directory_Error =>
-- This should never happen. But, if it does, display the
-- content of the parent directory of the obj dir.
declare
Parent : constant Dir_Name_Str :=
Dir_Name
(Get_Name_String
(Projects.Table (Main_Project).Object_Directory));
Dir : Dir_Type;
Str : String (1 .. 200);
Last : Natural;
begin
Write_Str ("Contents of directory """);
Write_Str (Parent);
Write_Line (""":");
Open (Dir, Parent);
loop
Read (Dir, Str, Last);
exit when Last = 0;
Write_Str (" ");
Write_Line (Str (1 .. Last));
end loop;
Close (Dir);
exception
when X : others =>
Write_Line ("(unexpected exception)");
Write_Line (Exception_Information (X));
if Is_Open (Dir) then
Close (Dir);
end if;
end;
Make_Failed ("unable to change working directory to """,
Get_Name_String
(Projects.Table (Main_Project).Object_Directory),
"""");
end;
-- Source file lookups should be cached for efficiency.
-- Source files are not supposed to change.
Osint.Source_File_Data (Cache => True);
-- Find the file name of the (first) main unit
declare
Main_Source_File_Name : constant String :=
Get_Name_String (Main_Source_File);
Main_Unit_File_Name : constant String :=
Prj.Env.File_Name_Of_Library_Unit_Body
(Name => Main_Source_File_Name,
Project => Main_Project,
Main_Project_Only =>
not Unique_Compile);
The_Packages : constant Package_Id :=
Projects.Table (Main_Project).Decl.Packages;
Builder_Package : constant Prj.Package_Id :=
Prj.Util.Value_Of
(Name => Name_Builder,
In_Packages => The_Packages);
Binder_Package : constant Prj.Package_Id :=
Prj.Util.Value_Of
(Name => Name_Binder,
In_Packages => The_Packages);
Linker_Package : constant Prj.Package_Id :=
Prj.Util.Value_Of
(Name => Name_Linker,
In_Packages => The_Packages);
begin
-- We fail if we cannot find the main source file
if Main_Unit_File_Name = "" then
Make_Failed ('"' & Main_Source_File_Name,
""" is not a unit of project ",
Project_File_Name.all & ".");
else
-- Remove any directory information from the main
-- source file name.
declare
Pos : Natural := Main_Unit_File_Name'Last;
begin
loop
exit when Pos < Main_Unit_File_Name'First or else
Main_Unit_File_Name (Pos) = Directory_Separator;
Pos := Pos - 1;
end loop;
Name_Len := Main_Unit_File_Name'Last - Pos;
Name_Buffer (1 .. Name_Len) :=
Main_Unit_File_Name
(Pos + 1 .. Main_Unit_File_Name'Last);
Main_Source_File := Name_Find;
-- We only output the main source file if there is only one
if Opt.Verbose_Mode and then Osint.Number_Of_Files = 1 then
Write_Str ("Main source file: """);
Write_Str (Main_Unit_File_Name
(Pos + 1 .. Main_Unit_File_Name'Last));
Write_Line (""".");
end if;
end;
end if;
-- If there is a package Builder in the main project file, add
-- the switches from it.
if Builder_Package /= No_Package then
-- If there is only one main, we attempt to get the gnatmake
-- switches for this main (if any). If there are no specific
-- switch for this particular main, get the general gnatmake
-- switches (if any).
if Osint.Number_Of_Files = 1 then
if Opt.Verbose_Mode then
Write_Str ("Adding gnatmake switches for """);
Write_Str (Main_Unit_File_Name);
Write_Line (""".");
end if;
Add_Switches
(File_Name => Main_Unit_File_Name,
The_Package => Builder_Package,
Program => None);
else
-- If there are several mains, we always get the general
-- gnatmake switches (if any).
-- Warn the user, if necessary, so that he is not surprized
-- that specific switches are not taken into account.
declare
Defaults : constant Variable_Value :=
Prj.Util.Value_Of
(Name => Name_Ada,
Attribute_Or_Array_Name => Name_Default_Switches,
In_Package => Builder_Package);
Switches : constant Array_Element_Id :=
Prj.Util.Value_Of
(Name => Name_Switches,
In_Arrays =>
Packages.Table (Builder_Package).Decl.Arrays);
begin
if Defaults /= Nil_Variable_Value then
if (not Opt.Quiet_Output)
and then Switches /= No_Array_Element
then
Write_Line
("Warning: using Builder'Default_Switches" &
"(""Ada""), as there are several mains");
end if;
-- As there is never a source with name " ", we are
-- guaranteed to always get the general switches.
Add_Switches
(File_Name => " ",
The_Package => Builder_Package,
Program => None);
elsif (not Opt.Quiet_Output)
and then Switches /= No_Array_Element
then
Write_Line
("Warning: using no switches from package Builder," &
" as there are several mains");
end if;
end;
end if;
end if;
Osint.Add_Default_Search_Dirs;
-- Record the current last switch index for table Binder_Switches
-- and Linker_Switches, so that these tables may be reset before
-- for each main, before adding swiches from the project file
-- and from the command line.
Last_Binder_Switch := Binder_Switches.Last;
Last_Linker_Switch := Linker_Switches.Last;
Check_Steps;
-- Add binder switches from the project file for the first main
if Do_Bind_Step and Binder_Package /= No_Package then
if Opt.Verbose_Mode then
Write_Str ("Adding binder switches for """);
Write_Str (Main_Unit_File_Name);
Write_Line (""".");
end if;
Add_Switches
(File_Name => Main_Unit_File_Name,
The_Package => Binder_Package,
Program => Binder);
end if;
-- Add linker switches from the project file for the first main
if Do_Link_Step and Linker_Package /= No_Package then
if Opt.Verbose_Mode then
Write_Str ("Adding linker switches for""");
Write_Str (Main_Unit_File_Name);
Write_Line (""".");
end if;
Add_Switches
(File_Name => Main_Unit_File_Name,
The_Package => Linker_Package,
Program => Linker);
end if;
end;
end if;
-- Get the target parameters, which are only needed for a couple of
-- cases in gnatmake. Protect against an exception, such as the case
-- of system.ads missing from the library, and fail gracefully.
begin
Targparm.Get_Target_Parameters;
exception
when Unrecoverable_Error =>
Make_Failed ("*** make failed.");
end;
Display_Commands (not Opt.Quiet_Output);
Check_Steps;
if Main_Project /= No_Project then
-- For all library project, if the library file does not exist
-- put all the project sources in the queue, and flag the project
-- so that the library is generated.
if MLib.Tgt.Support_For_Libraries /= MLib.Tgt.None then
for Proj in Projects.First .. Projects.Last loop
if Projects.Table (Proj).Library then
Projects.Table (Proj).Flag1 :=
not MLib.Tgt.Library_Exists_For (Proj);
if Projects.Table (Proj).Flag1 then
if Opt.Verbose_Mode then
Write_Str
("Library file does not exist for project """);
Write_Str
(Get_Name_String (Projects.Table (Proj).Name));
Write_Line ("""");
end if;
Insert_Project_Sources
(The_Project => Proj,
All_Projects => False,
Into_Q => True);
end if;
end if;
end loop;
end if;
-- If a relative path output file has been specified, we add
-- the exec directory.
for J in reverse 1 .. Saved_Linker_Switches.Last - 1 loop
if Saved_Linker_Switches.Table (J).all = Output_Flag.all then
declare
Exec_File_Name : constant String :=
Saved_Linker_Switches.Table (J + 1).all;
begin
if not Is_Absolute_Path (Exec_File_Name) then
for Index in Exec_File_Name'Range loop
if Exec_File_Name (Index) = Directory_Separator then
Make_Failed ("relative executable (""",
Exec_File_Name,
""") with directory part not " &
"allowed when using project files");
end if;
end loop;
Get_Name_String (Projects.Table
(Main_Project).Exec_Directory);
if Name_Buffer (Name_Len) /= Directory_Separator then
Name_Len := Name_Len + 1;
Name_Buffer (Name_Len) := Directory_Separator;
end if;
Name_Buffer (Name_Len + 1 ..
Name_Len + Exec_File_Name'Length) :=
Exec_File_Name;
Name_Len := Name_Len + Exec_File_Name'Length;
Saved_Linker_Switches.Table (J + 1) :=
new String'(Name_Buffer (1 .. Name_Len));
end if;
end;
exit;
end if;
end loop;
-- If we are using a project file, for relative paths we add the
-- current working directory for any relative path on the command
-- line and the project directory, for any relative path in the
-- project file.
declare
Dir_Path : constant String_Access :=
new String'(Get_Name_String
(Projects.Table (Main_Project).Directory));
begin
for J in 1 .. Binder_Switches.Last loop
Test_If_Relative_Path
(Binder_Switches.Table (J),
Parent => Dir_Path, Including_L_Switch => False);
end loop;
for J in 1 .. Saved_Binder_Switches.Last loop
Test_If_Relative_Path
(Saved_Binder_Switches.Table (J),
Parent => Current_Work_Dir, Including_L_Switch => False);
end loop;
for J in 1 .. Linker_Switches.Last loop
Test_If_Relative_Path
(Linker_Switches.Table (J), Parent => Dir_Path);
end loop;
for J in 1 .. Saved_Linker_Switches.Last loop
Test_If_Relative_Path
(Saved_Linker_Switches.Table (J), Parent => Current_Work_Dir);
end loop;
for J in 1 .. Gcc_Switches.Last loop
Test_If_Relative_Path
(Gcc_Switches.Table (J), Parent => Dir_Path);
end loop;
for J in 1 .. Saved_Gcc_Switches.Last loop
Test_If_Relative_Path
(Saved_Gcc_Switches.Table (J), Parent => Current_Work_Dir);
end loop;
end;
end if;
-- We now put in the Binder_Switches and Linker_Switches tables,
-- the binder and linker switches of the command line that have been
-- put in the Saved_ tables. If a project file was used, then the
-- command line switches will follow the project file switches.
for J in 1 .. Saved_Binder_Switches.Last loop
Add_Switch
(Saved_Binder_Switches.Table (J),
Binder,
And_Save => False);
end loop;
for J in 1 .. Saved_Linker_Switches.Last loop
Add_Switch
(Saved_Linker_Switches.Table (J),
Linker,
And_Save => False);
end loop;
-- If no project file is used, we just put the gcc switches
-- from the command line in the Gcc_Switches table.
if Main_Project = No_Project then
for J in 1 .. Saved_Gcc_Switches.Last loop
Add_Switch
(Saved_Gcc_Switches.Table (J),
Compiler,
And_Save => False);
end loop;
else
-- And we put the command line gcc switches in the variable
-- The_Saved_Gcc_Switches. They are going to be used later
-- in procedure Compile_Sources.
The_Saved_Gcc_Switches :=
new Argument_List (1 .. Saved_Gcc_Switches.Last + 1);
for J in 1 .. Saved_Gcc_Switches.Last loop
The_Saved_Gcc_Switches (J) := Saved_Gcc_Switches.Table (J);
end loop;
-- We never use gnat.adc when a project file is used
The_Saved_Gcc_Switches (The_Saved_Gcc_Switches'Last) :=
No_gnat_adc;
end if;
-- If there was a --GCC, --GNATBIND or --GNATLINK switch on
-- the command line, then we have to use it, even if there was
-- another switch in the project file.
if Saved_Gcc /= null then
Gcc := Saved_Gcc;
end if;
if Saved_Gnatbind /= null then
Gnatbind := Saved_Gnatbind;
end if;
if Saved_Gnatlink /= null then
Gnatlink := Saved_Gnatlink;
end if;
Gcc_Path := GNAT.OS_Lib.Locate_Exec_On_Path (Gcc.all);
Gnatbind_Path := GNAT.OS_Lib.Locate_Exec_On_Path (Gnatbind.all);
Gnatlink_Path := GNAT.OS_Lib.Locate_Exec_On_Path (Gnatlink.all);
-- If we have specified -j switch both from the project file
-- and on the command line, the one from the command line takes
-- precedence.
if Saved_Maximum_Processes = 0 then
Saved_Maximum_Processes := Opt.Maximum_Processes;
end if;
-- Allocate as many temporary mapping file names as the maximum
-- number of compilation processed, for each possible project.
The_Mapping_File_Names :=
new Temp_File_Names
(No_Project .. Projects.Last, 1 .. Saved_Maximum_Processes);
Last_Mapping_File_Names :=