------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- M A K E -- -- -- -- B o d y -- -- -- -- Copyright (C) 1992-2018, 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 3, 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 COPYING3. If not, go to -- -- http://www.gnu.org/licenses for a complete copy of the license. -- -- -- -- 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; with Fname.UF; use Fname.UF; with Gnatvsn; use Gnatvsn; with Hostparm; use Hostparm; with Makeusg; with Make_Util; use Make_Util; with Namet; use Namet; with Opt; use Opt; with Osint.M; use Osint.M; with Osint; use Osint; with Output; use Output; with SFN_Scan; with Sinput; with Snames; with Stringt; pragma Warnings (Off); with System.HTable; pragma Warnings (On); with Switch; use Switch; with Switch.M; use Switch.M; with Table; with Targparm; with Tempdir; with Types; use Types; with Ada.Command_Line; use Ada.Command_Line; with Ada.Directories; with Ada.Exceptions; use Ada.Exceptions; with GNAT.Command_Line; use GNAT.Command_Line; with GNAT.Directory_Operations; use GNAT.Directory_Operations; with GNAT.OS_Lib; use GNAT.OS_Lib; package body Make is use ASCII; -- Make control characters visible Standard_Library_Package_Body_Name : constant String := "s-stalib.adb"; System_Package_Spec_Name : constant String := "system.ads"; -- Every program depends on one of these packages: usually the first one, -- or if Supress_Standard_Library is true on the second one. The dependency -- is not always explicit and considering it is important when -f and -a -- are used. type Sigint_Handler is access procedure; pragma Convention (C, Sigint_Handler); 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; pragma Convention (C, Sigint_Intercepted); pragma No_Return (Sigint_Intercepted); -- Called when the program is interrupted by Ctrl-C to delete the -- temporary mapping files and configuration pragmas files. 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; Full_Lib_File : File_Name_Type; Lib_File_Attr : aliased File_Attributes; Mapping_File : Natural := No_Mapping_File; end record; -- Data recorded for each compilation process spawned No_Compilation_Data : constant Compilation_Data := (Invalid_Pid, No_File, No_File, No_Unit_Name, No_File, Unknown_Attributes, No_Mapping_File); type Comp_Data_Arr is array (Positive range <>) of Compilation_Data; type Comp_Data_Ptr is access Comp_Data_Arr; Running_Compile : Comp_Data_Ptr; -- Used to save information about outstanding compilations Outstanding_Compiles : Natural := 0; -- Current number of outstanding compiles procedure Initialize; Project_File_Name_Present : Boolean := False; Project_File_Name : String_Access := null; ------------------------- -- 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". Unique_Compile : Boolean := False; -- Set to True if -u or -U is used Must_Compile : Boolean := False; -- True if gnatmake is invoked with -f -u and one or several mains on the -- command line. Main_On_Command_Line : Boolean := False; -- True if gnatmake is invoked with one or several mains on the command -- line. RTS_Specified : String_Access := null; -- Used to detect multiple --RTS= switches N_M_Switch : Natural := 0; -- Used to count -mxxx switches that can affect multilib -- The 3 following packages are used to store gcc, gnatbind and gnatlink -- switches found in the project files. package 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.Gcc_Switches"); package 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.Binder_Switches"); package 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.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 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"); Normalized_Switches : Argument_List_Access := new Argument_List (1 .. 10); Last_Norm_Switch : Natural := 0; Map_File : String_Access := null; -- Value of switch --create-map-file procedure Add_Library_Search_Dir (Path : String); -- Call Add_Lib_Search_Dir with an absolute directory path. If Path is -- relative path,, it is relative to the current working directory. procedure Add_Source_Search_Dir (Path : String); -- Call Add_Src_Search_Dir with an absolute directory path. If Path is a -- relative path, it is relative to 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 invocation of procedure Gnatmake. CodePeer_Mode_String : aliased String := "-P"; No_Shared_Switch : aliased Argument_List := (1 .. 0 => null); 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. 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 (S : String); pragma No_Return (Make_Failed); -- Delete all temp files created by Gnatmake and call Osint.Fail, with the -- parameter S (see osint.ads). -------------------------- -- 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; -- This needs a proper comment, it used to say "arbitrary" that's not an -- adequate comment ??? type Header_Num is range 1 .. Max_Header; -- Header_Num for the hash table Obsoleted below function Hash (F : File_Name_Type) 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 => File_Name_Type, 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 : File_Name_Type); -- Enter a file name, without directory information, into the hash table -- Obsoleted. function Is_In_Obsoleted (F : File_Name_Type) return Boolean; -- Check if a file name, without directory information, has already been -- entered into the hash table Obsoleted. type Dependency is record This : File_Name_Type; Depends_On : File_Name_Type; 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. More explanation needed ??? ---------------------------- -- 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 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. ------------------- -- 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 List_Bad_Compilations; -- Prints out the list of all files for which the compilation failed 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); procedure Debug_Msg (S : String; N : File_Name_Type); procedure Debug_Msg (S : String; N : Unit_Name_Type); -- If Debug.Debug_Flag_W is set outputs string S followed by name N ----------------------- -- Gnatmake Routines -- ----------------------- 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. 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 the absolute path from Dir in name table and set lib mark as name -- info to identify Ada libraries. -- -- If Dir is a relative path, it is relative to the current working -- directory. 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. procedure Process_Multilib; -- Add appropriate --RTS argument to handle multilib procedure Compute_Executable (Main_Source_File : File_Name_Type; Executable : out File_Name_Type; Non_Std_Executable : out Boolean); -- Parse the linker switches and project file to compute the name of the -- executable to generate. -- ??? What is the meaning of Non_Std_Executable procedure Compilation_Phase (Main_Source_File : File_Name_Type; Current_Main_Index : Int := 0; Total_Compilation_Failures : in out Natural; Executable : File_Name_Type := No_File; Stop_Compile : out Boolean); -- Build all source files for a given main file -- -- Current_Main_Index, if not zero, is the index of the current main unit -- in its source file. -- -- Stand_Alone_Libraries is set to True when there are Stand-Alone -- Libraries, so that gnatbind is invoked with the -F switch to force -- checking of elaboration flags. -- -- Stop_Compile is set to true if we should not try to compile any more -- of the main units procedure Binding_Phase (Main_ALI_File : File_Name_Type); -- Stand_Alone_Libraries should be set to True when there are Stand-Alone -- Libraries, so that gnatbind is invoked with the -F switch to force -- checking of elaboration flags. procedure Linking_Phase (Non_Std_Executable : Boolean := False; Executable : File_Name_Type := No_File; Main_ALI_File : File_Name_Type); -- Perform the link of a single executable. The ali file corresponds -- to Main_ALI_File. Executable is the file name of an executable. -- Non_Std_Executable is set to True when there is a possibility that -- the linker will not choose the correct executable file name. ---------------------------------------------------- -- Compiler, Binder & Linker Data and Subprograms -- ---------------------------------------------------- Gcc : String_Access := Program_Name ("gcc", "gnatmake"); Gnatbind : String_Access := Program_Name ("gnatbind", "gnatmake"); Gnatlink : String_Access := Program_Name ("gnatlink", "gnatmake"); -- Default compiler, binder, linker programs 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"); AdaSCIL_Flag : constant String_Access := new String'("adascil"); GNAT_Flag : constant String_Access := new String'("-gnatpg"); Do_Not_Check_Flag : constant String_Access := new String'("-x"); Object_Suffix : constant String := Get_Target_Object_Suffix.all; Syntax_Only : Boolean := False; -- Set to True when compiling with -gnats 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 global since value preserved from one call to another. procedure Add_Switch (S : String_Access; Program : Make_Program_Type; Append_Switch : Boolean := True); procedure Add_Switch (S : String; Program : Make_Program_Type; Append_Switch : 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 command line. This procedure -- records these switches so that gnatmake 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; Full_Lib_File : File_Name_Type; Lib_File_Attr : access File_Attributes; 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. -- Full_Lib_File must be the result of calling Osint.Full_Lib_File_Name on -- Lib_File. Precomputing it saves system calls. Lib_File_Attr is the -- initialized attributes of that file, which is also used to save on -- system calls (it can safely be initialized to Unknown_Attributes). 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 (Args : Argument_List); -- Collect all arguments for a source to be compiled. 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. procedure Report_Compilation_Failed; pragma No_Return (Report_Compilation_Failed); -- Delete all temporary files and fail graciously ----------------- -- Mapping files ----------------- type Temp_Path_Names is array (Positive range <>) of Path_Name_Type; type Temp_Path_Ptr is access Temp_Path_Names; type Free_File_Indexes is array (Positive range <>) of Positive; type Free_Indexes_Ptr is access Free_File_Indexes; type Mapping_File_Data is record Mapping_File_Names : Temp_Path_Ptr; -- The name ids of the temporary mapping files used. This is indexed -- on the maximum number of compilation processes we will be spawning -- (-j parameter) Last_Mapping_File_Names : Natural; -- Index of the last mapping file created for this project Free_Mapping_File_Indexes : Free_Indexes_Ptr; -- Indexes in Mapping_File_Names of the mapping file names that can be -- reused for subsequent compilations. Last_Free_Indexes : Natural; -- Number of mapping files that can be reused end record; -- Information necessary when compiling a project The_Mapping_Files : Mapping_File_Data; Gnatmake_Mapping_File : String_Access := null; -- The path name of a mapping file specified by switch -C= procedure Init_Mapping_File (File_Index : out Natural); -- Create a new mapping file or reuse one already created. package Temp_File_Paths is new Table.Table (Table_Component_Type => Path_Name_Type, Table_Index_Type => Natural, Table_Low_Bound => 1, Table_Initial => 4, Table_Increment => 100, Table_Name => "Make.Temp_File_Paths", Release_Threshold => 0); procedure Record_Temp_File (Path : Path_Name_Type); -- Record the path of a temporary file, so that it can be deleted at the -- end of execution of gnatmake. procedure Record_Temp_File (Path : Path_Name_Type) is begin for J in 1 .. Temp_File_Paths.Last loop if Temp_File_Paths.Table (J) = Path then return; end if; end loop; Temp_File_Paths.Append (Path); end Record_Temp_File; ------------------------------------------------- -- Subprogram declarations moved from the spec -- ------------------------------------------------- procedure Bind (ALI_File : File_Name_Type; Args : Argument_List); -- Binds ALI_File. Args are the arguments to pass to the binder. -- Args must have a lower bound of 1. -- If a compilation, bind or link failed one of the following 3 exceptions -- is raised. These need to be handled by the calling routines. procedure Compile_Sources (Main_Source : File_Name_Type; Args : Argument_List; First_Compiled_File : out File_Name_Type; Most_Recent_Obj_File : out File_Name_Type; Most_Recent_Obj_Stamp : out Time_Stamp_Type; Main_Unit : out Boolean; Compilation_Failures : out Natural; Main_Index : Int := 0; 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); -- Compile_Sources will recursively compile all the sources needed by -- Main_Source. Before calling this routine make sure Namet has been -- initialized. This routine can be called repeatedly with different -- Main_Source file as long as all the source (-I flags), library -- (-B flags) and ada library (-A flags) search paths between calls are -- *exactly* the same. The default directory must also be the same. -- -- Args contains the arguments to use during the compilations. -- The lower bound of Args must be 1. -- -- First_Compiled_File is set to the name of the first file that is -- compiled or that needs to be compiled. This is set to No_Name if no -- compilations were needed. -- -- Most_Recent_Obj_File is set to the full name of the most recent -- object file found when no compilations are needed, that is when -- First_Compiled_File is set to No_Name. When First_Compiled_File -- is set then Most_Recent_Obj_File is set to No_Name. -- -- Most_Recent_Obj_Stamp is the time stamp of Most_Recent_Obj_File. -- -- Main_Unit is set to True if Main_Source can be a main unit. -- If Do_Not_Execute is False and First_Compiled_File /= No_Name -- the value of Main_Unit is always False. -- Is this used any more??? It is certainly not used by gnatmake??? -- -- Compilation_Failures is a count of compilation failures. This count -- is used to extract compilation failure reports with Extract_Failure. -- -- Main_Index, when not zero, is the index of the main unit in source -- file Main_Source which is a multi-unit source. -- Zero indicates that Main_Source is a single unit source file. -- -- Check_Readonly_Files set it to True to compile source files -- which library files are read-only. When compiling GNAT predefined -- files the "-gnatg" flag is used. -- -- Do_Not_Execute set it to True to find out the first source that -- needs to be recompiled, but without recompiling it. This file is -- saved in First_Compiled_File. -- -- Force_Compilations forces all compilations no matter what but -- recompiles read-only files only if Check_Readonly_Files -- is set. -- -- Keep_Going when True keep compiling even in the presence of -- compilation errors. -- -- In_Place_Mode when True save library/object files in their object -- directory if they already exist; otherwise, in the source directory. -- -- Initialize_ALI_Data set it to True when you want to initialize ALI -- data-structures. This is what you should do most of the time. -- (especially the first time around when you call this routine). -- This parameter is set to False to preserve previously recorded -- ALI file data. -- -- Max_Process is the maximum number of processes that should be spawned -- to carry out compilations. -- -- Flags in Package Opt Affecting Compile_Sources -- ----------------------------------------------- -- -- Check_Object_Consistency set it to False to omit all consistency -- checks between an .ali file and its corresponding object file. -- When this flag is set to true, every time an .ali is read, -- package Osint checks that the corresponding object file -- exists and is more recent than the .ali. -- -- Use of Name Table Info -- ---------------------- -- -- All file names manipulated by Compile_Sources are entered into the -- Names table. The Byte field of a source file is used to mark it. -- -- Calling Compile_Sources Several Times -- ------------------------------------- -- -- Upon return from Compile_Sources all the ALI data structures are left -- intact for further browsing. HOWEVER upon entry to this routine ALI -- data structures are re-initialized if parameter Initialize_ALI_Data -- above is set to true. Typically this is what you want the first time -- you call Compile_Sources. You should not load an ali file, call this -- routine with flag Initialize_ALI_Data set to True and then expect -- that ALI information to be around after the call. Note that the first -- time you call Compile_Sources you better set Initialize_ALI_Data to -- True unless you have called Initialize_ALI yourself. -- -- Compile_Sources ALGORITHM : Compile_Sources (Main_Source) -- ------------------------- -- -- 1. Insert Main_Source in a Queue (Q) and mark it. -- -- 2. Let unit.adb be the file at the head of the Q. If unit.adb is -- missing but its corresponding ali file is in an Ada library directory -- (see below) then, remove unit.adb from the Q and goto step 4. -- Otherwise, look at the files under the D (dependency) section of -- unit.ali. If unit.ali does not exist or some of the time stamps do -- not match, (re)compile unit.adb. -- -- An Ada library directory is a directory containing Ada specs, ali -- and object files but no source files for the bodies. An Ada library -- directory is communicated to gnatmake by means of some switch so that -- gnatmake can skip the sources whole ali are in that directory. -- There are two reasons for skipping the sources in this case. Firstly, -- Ada libraries typically come without full sources but binding and -- linking against those libraries is still possible. Secondly, it would -- be very wasteful for gnatmake to systematically check the consistency -- of every external Ada library used in a program. The binder is -- already in charge of catching any potential inconsistencies. -- -- 3. Look into the W section of unit.ali and insert into the Q all -- unmarked source files. Mark all files newly inserted in the Q. -- Specifically, assuming that the W section looks like -- -- W types%s types.adb types.ali -- W unchecked_deallocation%s -- W xref_tab%s xref_tab.adb xref_tab.ali -- -- Then xref_tab.adb and types.adb are inserted in the Q if they are not -- already marked. -- Note that there is no file listed under W unchecked_deallocation%s -- so no generic body should ever be explicitly compiled (unless the -- Main_Source at the start was a generic body). -- -- 4. Repeat steps 2 and 3 above until the Q is empty -- -- Note that the above algorithm works because the units withed in -- subunits are transitively included in the W section (with section) of -- the main unit. Likewise the withed units in a generic body needed -- during a compilation are also transitively included in the W section -- of the originally compiled file. procedure Link (ALI_File : File_Name_Type; Args : Argument_List; Success : out Boolean); -- Links ALI_File. Args are the arguments to pass to the linker. -- Args must have a lower bound of 1. Success indicates if the link -- succeeded or not. Gnatmake_Switch_Found : Boolean := False; procedure Scan_Make_Arg (Argv : String); -- Scan make arguments. Argv is a single argument to be processed. ------------------- -- 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 : constant 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_Library_Search_Dir -- ---------------------------- procedure Add_Library_Search_Dir (Path : String) is begin Add_Lib_Search_Dir (Normalize_Pathname (Path)); end Add_Library_Search_Dir; --------------------------- -- Add_Source_Search_Dir -- --------------------------- procedure Add_Source_Search_Dir (Path : String) is begin Add_Src_Search_Dir (Normalize_Pathname (Path)); end Add_Source_Search_Dir; ---------------- -- Add_Switch -- ---------------- procedure Add_Switch (S : String_Access; Program : Make_Program_Type; Append_Switch : 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); New_Position : Integer; -- Start of processing for Add_Switch begin 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 Add_Switch; procedure Add_Switch (S : String; Program : Make_Program_Type; Append_Switch : Boolean := True) is begin Add_Switch (S => new String'(S), Program => Program, Append_Switch => Append_Switch); end Add_Switch; ---------- -- 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 Make_Failed ("*** bind failed."); end if; end Bind; ----------- -- Check -- ----------- procedure Check (Source_File : File_Name_Type; The_Args : Argument_List; Lib_File : File_Name_Type; Full_Lib_File : File_Name_Type; Lib_File_Attr : access File_Attributes; 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 in ALI 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 (i.e. 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_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 : File_Name_Type; Text : Text_Buffer_Ptr; First_Arg : Arg_Id; -- Index of the first argument in Args.Table for a given unit Last_Arg : Arg_Id; -- Index of the last argument in Args.Table for a given unit Arg : Arg_Id := Arg_Id'First; -- Current index in Args.Table for a given unit (init to stop warning) Number_Of_Switches : Natural; -- Number of switches recorded for a given unit Prev_Switch : String_Access; -- Previous switch processed Switch_Found : Boolean; -- True if a given switch has been found begin pragma Assert (Lib_File /= No_File); -- If ALI file is read-only, temporarily set 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 := Check_Object_Consistency; begin Check_Object_Consistency := False; Text := Read_Library_Info_From_Full (Full_Lib_File, Lib_File_Attr); Check_Object_Consistency := Saved_Check_Object_Consistency; end; else Text := Read_Library_Info_From_Full (Full_Lib_File, Lib_File_Attr); end if; 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 => " ", Minimum_Verbosity => Opt.Medium); else Verbose_Msg (Full_Lib_File, "being checked ...", Prefix => " ", Minimum_Verbosity => Opt.Medium); 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 no object was generated if Operating_Mode /= 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; -- When compiling with -gnatc, don't take ALI file into account if -- it has not been generated for the current source, for example if -- it has been generated for the spec, but we are compiling the body. if Operating_Mode = Check_Semantics then declare File_Name : String := Get_Name_String (Source_File); OK : Boolean := False; begin -- In the ALI file, the source file names are in canonical case Canonical_Case_File_Name (File_Name); for U in ALIs.Table (ALI).First_Unit .. ALIs.Table (ALI).Last_Unit loop OK := Get_Name_String (Units.Table (U).Sfile) = File_Name; exit when OK; end loop; if not OK then Verbose_Msg (Full_Lib_File, "not generated for the same source"); ALI := No_ALI_Id; return; end if; end; end if; -- Check for matching compiler switches if needed if Check_Switches then -- First, collect all the switches Collect_Arguments (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 -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; First_Arg := Units.Table (ALIs.Table (ALI).First_Unit).First_Arg; Last_Arg := Units.Table (ALIs.Table (ALI).First_Unit).Last_Arg; 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 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 := First_Arg; end if; Switch_Found := False; for K in Arg .. 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 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; Number_Of_Switches := Natural (Last_Arg - First_Arg + 1); -- Do not count the multilib switches reinstated by the compiler -- according to the lang-specs.h.settings. for K in First_Arg .. Last_Arg loop if Args.Table (K).all = "-mrtp" then Number_Of_Switches := Number_Of_Switches - 1; end if; end loop; if Switches_To_Check.Last /= Number_Of_Switches then if Verbose_Mode then Verbose_Msg (ALIs.Table (ALI).Sfile, "different number of switches"); for K in First_Arg .. 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); -- To avoid using too much memory when switch -m is used, free the -- memory allocated for the source file when computing the checksum. if Minimal_Recompilation then Sinput.Clear_Source_File_Table; end if; if Modified_Source /= No_File then ALI := No_ALI_Id; if 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 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 (File_Name_Type (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; ----------------------- -- Collect_Arguments -- ----------------------- procedure Collect_Arguments (Args : Argument_List) is begin Last_Argument := 0; Add_Arguments (Args); -- 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 File_Name_Type; Most_Recent_Obj_File : out File_Name_Type; Most_Recent_Obj_Stamp : out Time_Stamp_Type; Main_Unit : out Boolean; Compilation_Failures : out Natural; Main_Index : Int := 0; 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 Mfile : Natural := No_Mapping_File; Mapping_File_Arg : String_Access; -- Info on the mapping file Need_To_Check_Standard_Library : Boolean := (Check_Readonly_Files or Must_Compile) and not Unique_Compile; procedure Add_Process (Pid : Process_Id; Sfile : File_Name_Type; Afile : File_Name_Type; Uname : Unit_Name_Type; Full_Lib_File : File_Name_Type; Lib_File_Attr : File_Attributes; 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 (Data : out Compilation_Data; OK : out Boolean); -- Awaits that an outstanding compilation process terminates. When it -- does set Data to the information registered for the corresponding -- call to Add_Process. 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. Data could be No_Compilation_Data -- if there was no compilation to wait for. function Bad_Compilation_Count return Natural; -- Returns the number of compilation failures procedure Check_Standard_Library; -- Check if s-stalib.adb needs to be compiled procedure Collect_Arguments_And_Compile (Full_Source_File : File_Name_Type; Lib_File : File_Name_Type; Source_Index : Int; Pid : out Process_Id; Process_Created : out Boolean); -- Collect arguments from project file (if any) and compile. If no -- compilation was attempted, Processed_Created is set to False, and the -- value of Pid is unknown. function Compile (S : File_Name_Type; L : File_Name_Type; Source_Index : Int; 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 -- compilation. 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 function Good_ALI_Present return Boolean; -- Returns True if any ALI file was recorded in the previous set procedure Get_Mapping_File; -- Get a mapping file name. If there is one to be reused, reuse it. -- Otherwise, create a new mapping file. 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. procedure Record_Good_ALI (A : ALI_Id); -- Records in the previous set the Id of an ALI file function Must_Exit_Because_Of_Error return Boolean; -- Return True if there were errors and the user decided to exit in such -- a case. This waits for any outstanding compilation. function Start_Compile_If_Possible (Args : Argument_List) return Boolean; -- Check if there is more work that we can do (i.e. the Queue is non -- empty). If there is, do it only if we have not yet used up all the -- available processes. -- Returns True if we should exit the main loop procedure Wait_For_Available_Slot; -- 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). procedure Fill_Queue_From_ALI_Files; -- 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. ----------------- -- Add_Process -- ----------------- procedure Add_Process (Pid : Process_Id; Sfile : File_Name_Type; Afile : File_Name_Type; Uname : Unit_Name_Type; Full_Lib_File : File_Name_Type; Lib_File_Attr : File_Attributes; 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, Full_Source_File => Sfile, Lib_File => Afile, Full_Lib_File => Full_Lib_File, Lib_File_Attr => Lib_File_Attr, Source_Unit => Uname, Mapping_File => Mfile); Outstanding_Compiles := OC1; end Add_Process; -------------------- -- Await_Compile -- ------------------- procedure Await_Compile (Data : out Compilation_Data; OK : out Boolean) is Pid : Process_Id; begin pragma Assert (Outstanding_Compiles > 0); Data := No_Compilation_Data; OK := False; Wait_Process (Pid, OK); if Pid = Invalid_Pid then return; end if; -- Look into the running compilation processes for this PID for J in Running_Compile'First .. Outstanding_Compiles loop if Pid = Running_Compile (J).Pid then Data := Running_Compile (J); -- 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 The_Mapping_Files.Last_Free_Indexes := The_Mapping_Files.Last_Free_Indexes + 1; The_Mapping_Files.Free_Mapping_File_Indexes (The_Mapping_Files.Last_Free_Indexes) := 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; exit; end if; end loop; -- If the PID was not found, return with OK set to False if Data = No_Compilation_Data then OK := False; end if; 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; ---------------------------- -- Check_Standard_Library -- ---------------------------- procedure Check_Standard_Library is begin Need_To_Check_Standard_Library := False; Name_Len := 0; if not Targparm.Suppress_Standard_Library_On_Target then Add_Str_To_Name_Buffer (Standard_Library_Package_Body_Name); else Add_Str_To_Name_Buffer (System_Package_Spec_Name); end if; declare Add_It : Boolean := True; Sfile : File_Name_Type; begin Sfile := Name_Enter; -- If we have a special runtime, we add the standard library only -- if we can find it. if RTS_Switch then Add_It := Full_Source_Name (Sfile) /= No_File; end if; if Add_It then if not Queue.Insert ((File => Sfile, Unit => No_Unit_Name, Index => 0)) then if Is_In_Obsoleted (Sfile) then Executable_Obsolete := True; end if; end if; end if; end; end Check_Standard_Library; ----------------------------------- -- Collect_Arguments_And_Compile -- ----------------------------------- procedure Collect_Arguments_And_Compile (Full_Source_File : File_Name_Type; Lib_File : File_Name_Type; Source_Index : Int; Pid : out Process_Id; Process_Created : out Boolean) is begin Process_Created := False; -- If we use mapping file (-P or -C switches), then get one if Create_Mapping_File then Get_Mapping_File; end if; Pid := Compile (S => Full_Source_File, L => Lib_File, Source_Index => Source_Index, Args => Arguments (1 .. Last_Argument)); Process_Created := True; end Collect_Arguments_And_Compile; ------------- -- Compile -- ------------- function Compile (S : File_Name_Type; L : File_Name_Type; Source_Index : Int; Args : Argument_List) return Process_Id is Comp_Args : Argument_List (Args'First .. Args'Last + 10); Comp_Next : Integer := Args'First; Comp_Last : Integer; Arg_Index : Integer; function Ada_File_Name (Name : File_Name_Type) 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 : File_Name_Type) 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) := new String'("-gnatea"); Comp_Next := Comp_Next + 1; 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; Arg_Index := Args'First + 1; else Comp_Last := Comp_Next + Args'Length - 1; Arg_Index := Args'First; end if; -- Make a deep copy of the arguments, because Normalize_Arguments -- may deallocate some arguments. Also strip target specific -mxxx -- switches in CodePeer mode. declare Index : Natural; Last : constant Natural := Comp_Last; begin Index := Comp_Next; for J in Comp_Next .. Last loop declare Str : String renames Args (Arg_Index).all; begin if CodePeer_Mode and then Str'Length > 2 and then Str (Str'First .. Str'First + 1) = "-m" then Comp_Last := Comp_Last - 1; else Comp_Args (Index) := new String'(Str); Index := Index + 1; end if; end; Arg_Index := Arg_Index + 1; end loop; end; -- 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 because 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, Renamings_Included => False) then if Check_Readonly_Files or else Must_Compile then Comp_Args (Comp_Args'First + 2 .. Comp_Last + 1) := Comp_Args (Comp_Args'First + 1 .. Comp_Last); Comp_Last := Comp_Last + 1; Comp_Args (Comp_Args'First + 1) := GNAT_Flag; else Make_Failed ("not allowed to compile """ & Get_Name_String (Fname) & """; use -a switch, or use the compiler directly with " & "the ""-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". -- Append systematically "-x adascil" in CodePeer mode instead, to -- force the use of gnat1scil instead of gnat1. if CodePeer_Mode then Comp_Last := Comp_Last + 1; Comp_Args (Comp_Last) := Ada_Flag_1; Comp_Last := Comp_Last + 1; Comp_Args (Comp_Last) := AdaSCIL_Flag; elsif not Ada_File_Name (S) 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 Source_Index /= 0 then declare Num : constant String := Source_Index'Img; begin Comp_Last := Comp_Last + 1; Comp_Args (Comp_Last) := new String'("-gnateI" & Num (Num'First + 1 .. Num'Last)); end; end if; if Source_Index /= 0 or else 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 and then Mapping_File_Arg /= null then Comp_Last := Comp_Last + 1; Comp_Args (Comp_Last) := new String'(Mapping_File_Arg.all); end if; Get_Name_String (S); Comp_Last := Comp_Last + 1; Comp_Args (Comp_Last) := new String'(Name_Buffer (1 .. Name_Len)); -- Change to object directory of the project file, if necessary GNAT.OS_Lib.Normalize_Arguments (Comp_Args (Args'First .. Comp_Last)); Comp_Last := Comp_Last + 1; Comp_Args (Comp_Last) := new String'("-gnatez"); 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; ------------------------------- -- Fill_Queue_From_ALI_Files -- ------------------------------- procedure Fill_Queue_From_ALI_Files is ALI : ALI_Id; Source_Index : Int; Sfile : File_Name_Type; begin while Good_ALI_Present loop ALI := Get_Next_Good_ALI; Source_Index := Unit_Index_Of (ALIs.Table (ALI).Afile); -- 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 and then Source_Index = Main_Index 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 Check_Standard_Library; 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; Dependencies.Append ((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); else Source_Index := Unit_Index_Of (Withs.Table (K).Afile); if not (Check_Readonly_Files or Must_Compile) and then Is_Internal_File_Name (Sfile, False) then Debug_Msg ("Skipping internal file:", Sfile); else Queue.Insert ((File => Sfile, Unit => Withs.Table (K).Uname, Index => Source_Index)); end if; end if; end loop; end loop; end if; end loop; end Fill_Queue_From_ALI_Files; ---------------------- -- Get_Mapping_File -- ---------------------- procedure Get_Mapping_File is begin -- If there is a mapping file ready to be reused, reuse it if The_Mapping_Files.Last_Free_Indexes > 0 then Mfile := The_Mapping_Files.Free_Mapping_File_Indexes (The_Mapping_Files.Last_Free_Indexes); The_Mapping_Files.Last_Free_Indexes := The_Mapping_Files.Last_Free_Indexes - 1; -- Otherwise, create and initialize a new one else Init_Mapping_File (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_Files.Mapping_File_Names (Mfile))); end Get_Mapping_File; ----------------------- -- Get_Next_Good_ALI -- ----------------------- function Get_Next_Good_ALI return ALI_Id is ALIP : ALI_Id; begin pragma Assert (Good_ALI_Present); ALIP := Good_ALI.Table (Good_ALI.Last); Good_ALI.Decrement_Last; return ALIP; 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; -------------------------------- -- Must_Exit_Because_Of_Error -- -------------------------------- function Must_Exit_Because_Of_Error return Boolean is Data : Compilation_Data; Success : Boolean; begin if Bad_Compilation_Count > 0 and then not Keep_Going then while Outstanding_Compiles > 0 loop Await_Compile (Data, Success); if not Success then Record_Failure (Data.Full_Source_File, Data.Source_Unit); end if; end loop; return True; end if; return False; end Must_Exit_Because_Of_Error; -------------------- -- 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_Compile_If_Possible -- ------------------------------- function Start_Compile_If_Possible (Args : Argument_List) return Boolean is In_Lib_Dir : Boolean; Need_To_Compile : Boolean; Pid : Process_Id := Invalid_Pid; Process_Created : Boolean; Source : Queue.Source_Info; Full_Source_File : File_Name_Type := No_File; Source_File_Attr : aliased File_Attributes; -- The full name of the source file and its attributes (size, ...) Lib_File : File_Name_Type; Full_Lib_File : File_Name_Type := No_File; Lib_File_Attr : aliased File_Attributes; Read_Only : Boolean := False; ALI : ALI_Id := No_ALI_Id; -- The ALI file and its attributes (size, stamp, ...) Obj_File : File_Name_Type := No_File; Obj_Stamp : Time_Stamp_Type; -- The object file Found : Boolean; begin if not Queue.Is_Empty and then Outstanding_Compiles < Max_Process then Queue.Extract (Found, Source); Osint.Full_Source_Name (Source.File, Full_File => Full_Source_File, Attr => Source_File_Attr'Access); Lib_File := Osint.Lib_File_Name (Source.File, Source.Index); Osint.Full_Lib_File_Name (Lib_File, Lib_File => Full_Lib_File, Attr => Lib_File_Attr); -- If source has already been compiled, executable is obsolete if Is_In_Obsoleted (Source.File) then Executable_Obsolete := True; end if; In_Lib_Dir := Full_Lib_File /= No_File and then In_Ada_Lib_Dir (Full_Lib_File); -- Since the following requires a system call, we precompute it -- when needed. if not In_Lib_Dir then if Full_Lib_File /= No_File and then not (Check_Readonly_Files or else Must_Compile) then Get_Name_String (Full_Lib_File); Name_Buffer (Name_Len + 1) := ASCII.NUL; Read_Only := not Is_Writable_File (Name_Buffer'Address, Lib_File_Attr'Access); else Read_Only := False; end if; end if; -- If the library file is an Ada library skip it if In_Lib_Dir then Verbose_Msg (Lib_File, "is in an Ada library", Prefix => " ", Minimum_Verbosity => Opt.High); -- 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 must not be skipped). elsif Read_Only then Verbose_Msg (Lib_File, "is a read-only library", Prefix => " ", Minimum_Verbosity => Opt.High); -- 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 or else Must_Compile) and then Full_Lib_File /= No_File and then Is_Internal_File_Name (Source.File, False) then if Force_Compilations then Fail ("not allowed to compile """ & Get_Name_String (Source.File) & """; use -a switch, or use the compiler directly with " & "the ""-gnatg"" switch"); end if; Verbose_Msg (Lib_File, "is an internal library", Prefix => " ", Minimum_Verbosity => Opt.High); -- The source file that we are checking can be located else Collect_Arguments (Args); -- 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 Check (Source_File => Source.File, The_Args => Args, Lib_File => Lib_File, Full_Lib_File => Full_Lib_File, Lib_File_Attr => Lib_File_Attr'Access, Read_Only => Read_Only, ALI => ALI, O_File => Obj_File, O_Stamp => 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 the main loop return True; end if; end if; -- Compute where the ALI file must be generated in -- In_Place_Mode (this does not require to know the -- location of the object directory). if In_Place_Mode then if Full_Lib_File = No_File then -- If the library file was not found, then save -- the library file near the source file. Lib_File := Osint.Lib_File_Name (Full_Source_File, Source.Index); Full_Lib_File := Lib_File; else -- If the library file was found, then save the -- library file in the same place. 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. This might -- change the current directory. Collect_Arguments_And_Compile (Full_Source_File => Full_Source_File, Lib_File => Lib_File, Source_Index => Source.Index, Pid => Pid, Process_Created => Process_Created); -- Compute where the ALI file will be generated (for -- cases that might require to know the current -- directory). The current directory might be changed -- when compiling other files so we cannot rely on it -- being the same to find the resulting ALI file. if not In_Place_Mode then -- Compute the expected location of the ALI file. This -- can be from several places: -- -i => in place mode. In such a case, -- Full_Lib_File has already been set above -- -D => if specified -- or defaults in current dir -- We could simply use a call similar to -- Osint.Full_Lib_File_Name (Lib_File) -- but that involves system calls and is thus slower if Object_Directory_Path /= null then Name_Len := 0; Add_Str_To_Name_Buffer (Object_Directory_Path.all); Add_Str_To_Name_Buffer (Get_Name_String (Lib_File)); Full_Lib_File := Name_Find; else Full_Lib_File := Lib_File; end if; end if; Lib_File_Attr := Unknown_Attributes; -- Make sure we could successfully start the compilation if Process_Created then if Pid = Invalid_Pid then Record_Failure (Full_Source_File, Source.Unit); else Add_Process (Pid => Pid, Sfile => Full_Source_File, Afile => Lib_File, Uname => Source.Unit, Mfile => Mfile, Full_Lib_File => Full_Lib_File, Lib_File_Attr => Lib_File_Attr); end if; end if; end if; end if; end if; return False; end Start_Compile_If_Possible; ----------------------------- -- Wait_For_Available_Slot -- ----------------------------- procedure Wait_For_Available_Slot is Compilation_OK : Boolean; Text : Text_Buffer_Ptr; ALI : ALI_Id; Data : Compilation_Data; begin if Outstanding_Compiles = Max_Process or else (Queue.Is_Empty and then not Good_ALI_Present and then Outstanding_Compiles > 0) then Await_Compile (Data, Compilation_OK); if not Compilation_OK then Record_Failure (Data.Full_Source_File, Data.Source_Unit); end if; if Compilation_OK or else Keep_Going then -- Re-read the updated library file declare Saved_Object_Consistency : constant Boolean := 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. Check_Object_Consistency := Check_Object_Consistency and Compilation_OK and (Output_Is_Object or Do_Bind_Step); Text := Read_Library_Info_From_Full (Data.Full_Lib_File, Data.Lib_File_Attr'Access); -- Restore Check_Object_Consistency to its initial value 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 (Data.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 (Data.Lib_File, "incompatible ALI file, please recompile"); Record_Failure (Data.Full_Source_File, Data.Source_Unit); end if; else Record_Good_ALI (ALI); end if; Free (Text); -- 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 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). However, -- we record a failure only if not already done. else if Compilation_OK and not Syntax_Only then Inform (Data.Lib_File, "WARNING: ALI or object file not found after compile"); if not Is_Regular_File (Get_Name_String (Name_Id (Data.Full_Lib_File))) then Inform (Data.Full_Lib_File, "not found"); end if; Record_Failure (Data.Full_Source_File, Data.Source_Unit); end if; end if; end if; end if; end Wait_For_Available_Slot; -- Start of processing for Compile_Sources begin pragma Assert (Args'First = 1); Outstanding_Compiles := 0; Running_Compile := new Comp_Data_Arr (1 .. Max_Process); -- Package and Queue initializations Good_ALI.Init; 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 Check_Source_Files to True to ensure that source file time -- stamps are checked, and we set 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). Check_Source_Files := True; All_Sources := False; Queue.Insert ((File => Main_Source, Unit => No_Unit_Name, Index => Main_Index)); 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 Queue.Is_Empty or else Outstanding_Compiles > 0 loop exit Make_Loop when Must_Exit_Because_Of_Error; exit Make_Loop when Start_Compile_If_Possible (Args); Wait_For_Available_Slot; -- ??? Should be done as soon as we add a Good_ALI, wouldn't it avoid -- the need for a list of good ALI? Fill_Queue_From_ALI_Files; if Display_Compilation_Progress then Write_Str ("completed "); Write_Int (Int (Queue.Processed)); Write_Str (" out of "); Write_Int (Int (Queue.Size)); Write_Str (" ("); Write_Int (Int ((Queue.Processed * 100) / Queue.Size)); Write_Str ("%)..."); Write_Eol; end if; end loop Make_Loop; Compilation_Failures := Bad_Compilation_Count; -- Compilation is finished end Compile_Sources; --------------- -- 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; procedure Debug_Msg (S : String; N : File_Name_Type) is begin Debug_Msg (S, Name_Id (N)); end Debug_Msg; procedure Debug_Msg (S : String; N : Unit_Name_Type) is begin Debug_Msg (S, Name_Id (N)); end Debug_Msg; ------------- -- Display -- ------------- procedure Display (Program : String; Args : Argument_List) is begin pragma Assert (Args'First = 1); if not Quiet_Output then Write_Str (Program); for J in Args'Range loop -- Never display -gnatea nor -gnatez if Args (J).all /= "-gnatea" and then Args (J).all /= "-gnatez" then -- Do not display the -F=mapping_file switch for gnatbind if -- -dn is not specified. if Opt.Keep_Temporary_Files or else Args (J)'Length < 4 or else Args (J) (Args (J)'First .. Args (J)'First + 2) /= "-F=" then Write_Str (" "); -- If -df is used, only display file names, not path -- names. if Debug.Debug_Flag_F then declare Equal_Pos : Natural; begin Equal_Pos := Args (J)'First - 1; for K in Args (J)'Range loop if Args (J) (K) = '=' then Equal_Pos := K; exit; end if; end loop; if Is_Absolute_Path (Args (J) (Equal_Pos + 1 .. Args (J)'Last)) then Write_Str (Args (J) (Args (J)'First .. Equal_Pos)); Write_Str (File_Name (Args (J) (Equal_Pos + 1 .. Args (J)'Last))); else Write_Str (Args (J).all); end if; end; else Write_Str (Args (J).all); end if; end if; end if; end loop; Write_Eol; end if; end Display; -------------------------- -- Enter_Into_Obsoleted -- -------------------------- procedure Enter_Into_Obsoleted (F : File_Name_Type) is Name : constant String := Get_Name_String (F); First : Natural; F2 : File_Name_Type; begin First := Name'Last; while First > Name'First and then not Is_Directory_Separator (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; else F2 := F; end if; Debug_Msg ("New entry in Obsoleted table:", F2); Obsoleted.Set (F2, True); end Enter_Into_Obsoleted; ------------------- -- Linking_Phase -- ------------------- procedure Linking_Phase (Non_Std_Executable : Boolean := False; Executable : File_Name_Type := No_File; Main_ALI_File : File_Name_Type) is Linker_Switches_Last : constant Integer := Linker_Switches.Last; begin if not Run_Path_Option then Linker_Switches.Increment_Last; Linker_Switches.Table (Linker_Switches.Last) := new String'("-R"); end if; if CodePeer_Mode then Linker_Switches.Increment_Last; Linker_Switches.Table (Linker_Switches.Last) := new String'(CodePeer_Mode_String); end if; -- Add switch -M to gnatlink if builder switch --create-map-file -- has been specified. if Map_File /= null then Linker_Switches.Increment_Last; Linker_Switches.Table (Linker_Switches.Last) := new String'("-M" & Map_File.all); end if; declare Args : Argument_List (Linker_Switches.First .. Linker_Switches.Last + 2); Last_Arg : Integer := Linker_Switches.First - 1; Skip : Boolean := False; begin -- Get all the linker switches for J in Linker_Switches.First .. Linker_Switches.Last loop if Skip then Skip := False; elsif Non_Std_Executable and then Linker_Switches.Table (J).all = "-o" then Skip := True; -- Here we capture and duplicate the linker argument. We -- need to do the duplication since the arguments will get -- normalized. Not doing so will result in calling normalized -- two times for the same set of arguments if gnatmake is -- passed multiple mains. This can result in the wrong -- argument being passed to the linker. else Last_Arg := Last_Arg + 1; Args (Last_Arg) := new String'(Linker_Switches.Table (J).all); end if; end loop; -- If need be, add the -o switch if Non_Std_Executable then Last_Arg := Last_Arg + 1; Args (Last_Arg) := new String'("-o"); Last_Arg := Last_Arg + 1; Args (Last_Arg) := new String'(Get_Name_String (Executable)); end if; -- And invoke the linker declare Success : Boolean := False; begin -- If gnatmake was invoked with --subdirs, put the executable in -- the subdirectory specified. if Subdirs /= null then Change_Dir (Object_Directory_Path.all); end if; Link (Main_ALI_File, Link_With_Shared_Libgcc.all & Args (Args'First .. Last_Arg), Success); if Success then Successful_Links.Increment_Last; Successful_Links.Table (Successful_Links.Last) := Main_ALI_File; elsif Osint.Number_Of_Files = 1 or else not Keep_Going then Make_Failed ("*** link failed."); else Set_Standard_Error; Write_Line ("*** link failed"); if Commands_To_Stdout then Set_Standard_Output; end if; Failed_Links.Increment_Last; Failed_Links.Table (Failed_Links.Last) := Main_ALI_File; end if; end; end; Linker_Switches.Set_Last (Linker_Switches_Last); end Linking_Phase; ------------------- -- Binding_Phase -- ------------------- procedure Binding_Phase (Main_ALI_File : File_Name_Type) is Args : Argument_List (Binder_Switches.First .. Binder_Switches.Last + 2); -- The arguments for the invocation of gnatbind Last_Arg : Natural := Binder_Switches.Last; -- Index of the last argument in Args Shared_Libs : Boolean := False; -- Set to True when there are shared library project files or -- when gnatbind is invoked with -shared. begin -- Check now for switch -shared for J in Binder_Switches.First .. Last_Arg loop if Binder_Switches.Table (J).all = "-shared" then Shared_Libs := True; exit; end if; end loop; -- If shared libraries present, invoke gnatlink with -- -shared-libgcc. if Shared_Libs then Link_With_Shared_Libgcc := Shared_Libgcc_Switch'Access; end if; -- Get all the binder switches for J in Binder_Switches.First .. Last_Arg loop Args (J) := Binder_Switches.Table (J); end loop; if CodePeer_Mode then Last_Arg := Last_Arg + 1; Args (Last_Arg) := CodePeer_Mode_String'Access; end if; -- If gnatmake was invoked with --subdirs, put the -- binder generated files in the subdirectory specified. if Subdirs /= null then Change_Dir (Object_Directory_Path.all); end if; Bind (Main_ALI_File, Bind_Shared.all & Args (Args'First .. Last_Arg)); end Binding_Phase; ----------------------- -- Compilation_Phase -- ----------------------- procedure Compilation_Phase (Main_Source_File : File_Name_Type; Current_Main_Index : Int := 0; Total_Compilation_Failures : in out Natural; Executable : File_Name_Type := No_File; Stop_Compile : out Boolean) is Args : Argument_List (1 .. Gcc_Switches.Last); First_Compiled_File : File_Name_Type; Youngest_Obj_File : File_Name_Type; Youngest_Obj_Stamp : Time_Stamp_Type; Is_Main_Unit : Boolean; -- Set True by Compile_Sources if Main_Source_File can be a main unit Compilation_Failures : Natural; Executable_Stamp : Time_Stamp_Type; begin Stop_Compile := False; for J in 1 .. Gcc_Switches.Last loop Args (J) := Gcc_Switches.Table (J); end loop; -- Now we invoke Compile_Sources for the current main Compile_Sources (Main_Source => Main_Source_File, Args => Args, First_Compiled_File => First_Compiled_File, Most_Recent_Obj_File => Youngest_Obj_File, Most_Recent_Obj_Stamp => Youngest_Obj_Stamp, Main_Unit => Is_Main_Unit, Main_Index => Current_Main_Index, Compilation_Failures => Compilation_Failures, Check_Readonly_Files => Check_Readonly_Files, Do_Not_Execute => Do_Not_Execute, Force_Compilations => Force_Compilations, In_Place_Mode => In_Place_Mode, Keep_Going => Keep_Going, Initialize_ALI_Data => True, Max_Process => Maximum_Processes); if Verbose_Mode then Write_Str ("End of compilation"); Write_Eol; end if; Total_Compilation_Failures := Total_Compilation_Failures + Compilation_Failures; if Total_Compilation_Failures /= 0 then Stop_Compile := True; return; end if; if List_Dependencies then if First_Compiled_File /= No_File then Inform (First_Compiled_File, "must be recompiled. Can't generate dependence list."); else List_Depend; end if; elsif First_Compiled_File = No_File and then not Do_Bind_Step and then not Quiet_Output and then Osint.Number_Of_Files = 1 then Inform (Msg => "objects up to date."); Stop_Compile := True; return; elsif Do_Not_Execute and then First_Compiled_File /= No_File then Write_Name (First_Compiled_File); Write_Eol; end if; -- Stop after compile step if any of: -- 1) -n (Do_Not_Execute) specified -- 2) -M (List_Dependencies) specified (also sets -- Do_Not_Execute above, so this is probably superfluous). -- 3) -c (Compile_Only) specified, but not -b (Bind_Only) -- 4) Made unit cannot be a main unit if ((Do_Not_Execute or List_Dependencies or not Do_Bind_Step or not Is_Main_Unit) and not No_Main_Subprogram and not Build_Bind_And_Link_Full_Project) or Unique_Compile then Stop_Compile := True; return; end if; -- If the objects were up-to-date check if the executable file is also -- up-to-date. For now always bind and link in CodePeer mode where there -- is no executable. if not CodePeer_Mode and then Do_Link_Step and then First_Compiled_File = No_File then Executable_Stamp := File_Stamp (Executable); if not Executable_Obsolete then Executable_Obsolete := Youngest_Obj_Stamp > Executable_Stamp; end if; if not Executable_Obsolete then for Index in reverse 1 .. Dependencies.Last loop if Is_In_Obsoleted (Dependencies.Table (Index).Depends_On) then Enter_Into_Obsoleted (Dependencies.Table (Index).This); end if; end loop; Executable_Obsolete := Is_In_Obsoleted (Main_Source_File); Dependencies.Init; end if; if not Executable_Obsolete then -- If no Ada object files obsolete the executable, check -- for younger or missing linker files. Check_Linker_Options (Executable_Stamp, Youngest_Obj_File, Youngest_Obj_Stamp); Executable_Obsolete := Youngest_Obj_File /= No_File; end if; -- Return if the executable is up to date and otherwise -- motivate the relink/rebind. if not Executable_Obsolete then if not Quiet_Output then Inform (Executable, "up to date."); end if; Stop_Compile := True; return; end if; if Executable_Stamp (1) = ' ' then if not No_Main_Subprogram then Verbose_Msg (Executable, "missing.", Prefix => " "); end if; elsif Youngest_Obj_Stamp (1) = ' ' then Verbose_Msg (Youngest_Obj_File, "missing.", Prefix => " "); elsif Youngest_Obj_Stamp > Executable_Stamp then Verbose_Msg (Youngest_Obj_File, "(" & String (Youngest_Obj_Stamp) & ") newer than", Executable, "(" & String (Executable_Stamp) & ")"); else Verbose_Msg (Executable, "needs to be rebuilt", Prefix => " "); end if; end if; end Compilation_Phase; ------------------------ -- Compute_Executable -- ------------------------ procedure Compute_Executable (Main_Source_File : File_Name_Type; Executable : out File_Name_Type; Non_Std_Executable : out Boolean) is begin Executable := No_File; Non_Std_Executable := Targparm.Executable_Extension_On_Target /= No_Name; -- Look inside the linker switches to see if the name of the final -- executable program was specified. for J in reverse Linker_Switches.First .. Linker_Switches.Last loop if Linker_Switches.Table (J).all = Output_Flag.all then pragma Assert (J < Linker_Switches.Last); -- We cannot specify a single executable for several main -- subprograms if Osint.Number_Of_Files > 1 then Fail ("cannot specify a single executable for several mains"); end if; Name_Len := 0; Add_Str_To_Name_Buffer (Linker_Switches.Table (J + 1).all); Executable := Name_Enter; Verbose_Msg (Executable, "final executable"); end if; end loop; -- If the name of the final executable program was not specified then -- construct it from the main input file. if Executable = No_File then Executable := Executable_Name (Strip_Suffix (Main_Source_File)); end if; end Compute_Executable; -------------- -- Gnatmake -- -------------- procedure Gnatmake is Main_Source_File : File_Name_Type; -- The source file containing the main compilation unit Total_Compilation_Failures : Natural := 0; 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_Main_Index : Int := 0; -- If not zero, the index of the current main unit in its source file Is_First_Main : Boolean; -- Whether we are processing the first main Stop_Compile : Boolean; Discard : Boolean; pragma Warnings (Off, Discard); begin 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; Failed_Links.Set_Last (0); Successful_Links.Set_Last (0); -- Special case when switch -B was specified if Main_Index /= 0 and then Osint.Number_Of_Files > 1 then Make_Failed ("cannot specify several mains with a multi-unit index"); end if; if Verbose_Mode then Write_Eol; Display_Version ("GNATMAKE", "1992"); end if; if Osint.Number_Of_Files = 0 then -- Call Get_Target_Parameters to ensure that flags are properly -- set before calling Usage. Targparm.Get_Target_Parameters; -- Output usage information if no argument on the command line if Argument_Count = 0 then Usage; else Try_Help; end if; Finish_Program (E_Success); end if; -- Get the first executable. -- ??? This needs to be done early, because Osint.Next_Main_File also -- initializes the primary search directory, used below to initialize -- the "-I" parameter Main_Source_File := Next_Main_Source; -- No directory information -- If -M was specified, behave as if -n was specified if List_Dependencies then Do_Not_Execute := True; end if; Add_Switch ("-I-", Compiler); if Look_In_Primary_Dir then Add_Switch ("-I" & Normalize_Directory_Name (Get_Primary_Src_Search_Directory.all).all, Compiler, Append_Switch => False); end if; -- If the user wants a program without a main subprogram, add the -- appropriate switch to the binder. if No_Main_Subprogram then Add_Switch ("-z", Binder); end if; -- The combination of -f -u and one or several mains on the command line -- implies -a. if Force_Compilations and then Unique_Compile and then Main_On_Command_Line then Must_Compile := True; end if; Bad_Compilation.Init; -- Here is where the make process is started Queue.Initialize; Is_First_Main := True; Multiple_Main_Loop : for N_File in 1 .. Osint.Number_Of_Files loop if Current_File_Index /= No_Index then Main_Index := Current_File_Index; end if; Current_Main_Index := Main_Index; if Is_First_Main then -- Put the default source dirs in the source path only now, so -- that we take the correct ones in the case where --RTS= is -- specified in the Builder switches. Osint.Add_Default_Search_Dirs; -- 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; 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 Debug.Debug_Flag_M then Write_Line ("Maximum number of simultaneous compilations =" & Maximum_Processes'Img); end if; -- Allocate as many temporary mapping file names as the maximum -- number of compilations processed. The_Mapping_Files := (Mapping_File_Names => new Temp_Path_Names (1 .. Maximum_Processes), Last_Mapping_File_Names => 0, Free_Mapping_File_Indexes => new Free_File_Indexes (1 .. Maximum_Processes), Last_Free_Indexes => 0); Is_First_Main := False; end if; Executable_Obsolete := False; Compute_Executable (Main_Source_File => Main_Source_File, Executable => Executable, Non_Std_Executable => Non_Std_Executable); if Do_Compile_Step then Compilation_Phase (Main_Source_File => Main_Source_File, Current_Main_Index => Current_Main_Index, Total_Compilation_Failures => Total_Compilation_Failures, Executable => Executable, Stop_Compile => Stop_Compile); if Stop_Compile then if Total_Compilation_Failures /= 0 then if Keep_Going then goto Next_Main; else List_Bad_Compilations; Report_Compilation_Failed; end if; elsif Osint.Number_Of_Files = 1 then exit Multiple_Main_Loop; else goto Next_Main; end if; end if; end if; -- If we are here, it means that we need to rebuilt the current main, -- so we set Executable_Obsolete to True to make sure that subsequent -- mains will be rebuilt. Main_ALI_In_Place_Mode_Step : declare ALI_File : File_Name_Type; Src_File : File_Name_Type; begin Src_File := Strip_Directory (Main_Source_File); ALI_File := Lib_File_Name (Src_File, Current_Main_Index); Main_ALI_File := Full_Lib_File_Name (ALI_File); -- When In_Place_Mode, the library file can be located in the -- Main_Source_File directory which may not be present in the -- library path. If it is not present then use the corresponding -- library file name. if Main_ALI_File = No_File and then In_Place_Mode then Get_Name_String (Get_Directory (Full_Source_Name (Src_File))); Get_Name_String_And_Append (ALI_File); Main_ALI_File := Name_Find; Main_ALI_File := Full_Lib_File_Name (Main_ALI_File); end if; if Main_ALI_File = No_File then Make_Failed ("could not find the main ALI file"); end if; end Main_ALI_In_Place_Mode_Step; if Do_Bind_Step then Binding_Phase (Main_ALI_File); end if; if Do_Link_Step then Linking_Phase (Non_Std_Executable => Non_Std_Executable, Executable => Executable, Main_ALI_File => Main_ALI_File); end if; -- We go to here when we skip the bind and link steps <> Queue.Remove_Marks; if N_File < Osint.Number_Of_Files then Main_Source_File := Next_Main_Source; -- No directory information end if; end loop Multiple_Main_Loop; if Failed_Links.Last > 0 then for Index in 1 .. Successful_Links.Last loop Write_Str ("Linking of """); Write_Str (Get_Name_String (Successful_Links.Table (Index))); Write_Line (""" succeeded."); end loop; Set_Standard_Error; for Index in 1 .. Failed_Links.Last loop Write_Str ("Linking of """); Write_Str (Get_Name_String (Failed_Links.Table (Index))); Write_Line (""" failed."); end loop; if Commands_To_Stdout then Set_Standard_Output; end if; if Total_Compilation_Failures = 0 then Report_Compilation_Failed; end if; end if; if Total_Compilation_Failures /= 0 then List_Bad_Compilations; Report_Compilation_Failed; end if; Finish_Program (E_Success); exception when X : others => Set_Standard_Error; Write_Line (Exception_Information (X)); Make_Failed ("INTERNAL ERROR. Please report."); end Gnatmake; ---------- -- Hash -- ---------- function Hash (F : File_Name_Type) return Header_Num is begin return Header_Num (1 + F mod Max_Header); end Hash; -------------------- -- In_Ada_Lib_Dir -- -------------------- function In_Ada_Lib_Dir (File : File_Name_Type) return Boolean is D : constant File_Name_Type := Get_Directory (File); B : constant Byte := Get_Name_Table_Byte (D); begin return (B and Ada_Lib_Dir) /= 0; end In_Ada_Lib_Dir; ----------------------- -- Init_Mapping_File -- ----------------------- procedure Init_Mapping_File (File_Index : out Natural) is FD : File_Descriptor; Status : Boolean; -- For call to Close begin -- Increase the index of the last mapping file for this project The_Mapping_Files.Last_Mapping_File_Names := The_Mapping_Files.Last_Mapping_File_Names + 1; -- Just create an empty file Tempdir.Create_Temp_File (FD, The_Mapping_Files.Mapping_File_Names (The_Mapping_Files.Last_Mapping_File_Names)); if FD = Invalid_FD then Make_Failed ("disk full"); else Record_Temp_File (The_Mapping_Files.Mapping_File_Names (The_Mapping_Files.Last_Mapping_File_Names)); end if; Close (FD, Status); if not Status then Make_Failed ("disk full"); end if; -- And return the index of the newly created file File_Index := The_Mapping_Files.Last_Mapping_File_Names; end Init_Mapping_File; ---------------- -- Initialize -- ---------------- procedure Initialize is procedure Check_Version_And_Help is new Check_Version_And_Help_G (Makeusg); begin -- Override default initialization of Check_Object_Consistency since -- this is normally False for GNATBIND, but is True for GNATMAKE since -- we do not need to check source consistency again once GNATMAKE has -- looked at the sources to check. Check_Object_Consistency := True; -- Package initializations (the order of calls is important here) Output.Set_Standard_Error; Gcc_Switches.Init; Binder_Switches.Init; Linker_Switches.Init; Csets.Initialize; Snames.Initialize; Stringt.Initialize; Dependencies.Init; RTS_Specified := null; N_M_Switch := 0; Mains.Delete; -- Add the directory where gnatmake is invoked in front of the path, -- if gnatmake is invoked from a bin directory or with directory -- information. declare Prefix : constant String := Executable_Prefix_Path; Command : constant String := Command_Name; begin if Prefix'Length > 0 then declare PATH : constant String := Prefix & Directory_Separator & "bin" & Path_Separator & Getenv ("PATH").all; begin Setenv ("PATH", PATH); end; else for Index in reverse Command'Range loop if Command (Index) = Directory_Separator then declare Absolute_Dir : constant String := Normalize_Pathname (Command (Command'First .. Index)); PATH : constant String := Absolute_Dir & Path_Separator & Getenv ("PATH").all; begin Setenv ("PATH", PATH); end; exit; end if; end loop; end if; end; -- Scan the switches and arguments -- First, scan to detect --version and/or --help Check_Version_And_Help ("GNATMAKE", "1995"); -- Scan again the switch and arguments, now that we are sure that they -- do not include --version or --help. -- First, check for switch -P and, if found and gprbuild is available, -- silently invoke gprbuild, with switch --target if not on a native -- platform. declare Arg_Len : Natural := Argument_Count; Call_Gprbuild : Boolean := False; Gprbuild : String_Access := null; Pos : Natural := 0; Success : Boolean; Target : String_Access := null; In_Gnatmake_Switches : Boolean := True; -- Set to False after -cargs, -bargs, or -largs, to avoid detecting -- -P switches that are not for gnatmake. begin Find_Program_Name; if Name_Len >= 8 and then Name_Buffer (Name_Len - 7 .. Name_Len) = "gnatmake" then if Name_Len > 9 then Target := new String'(Name_Buffer (1 .. Name_Len - 9)); Arg_Len := Arg_Len + 1; end if; for J in 1 .. Argument_Count loop declare Arg : constant String := Argument (J); begin if Arg = "-cargs" or Arg = "-bargs" or Arg = "-largs" then In_Gnatmake_Switches := False; elsif Arg = "-margs" then In_Gnatmake_Switches := True; elsif In_Gnatmake_Switches and then Arg'Length >= 2 and then Arg (Arg'First .. Arg'First + 1) = "-P" then Call_Gprbuild := True; exit; end if; end; end loop; if Call_Gprbuild then Gprbuild := Locate_Exec_On_Path (Exec_Name => "gprbuild"); if Gprbuild = null then Fail_Program ("project files are no longer supported by gnamake;" & " use gprbuild instead"); end if; declare Args : Argument_List (1 .. Arg_Len); begin if Target /= null then Args (1) := new String'("--target=" & Target.all); Pos := 1; end if; for J in 1 .. Argument_Count loop Pos := Pos + 1; Args (Pos) := new String'(Argument (J)); end loop; Spawn (Gprbuild.all, Args, Success); Free (Gprbuild); if Success then Exit_Program (E_Success); else Exit_Program (E_Errors); end if; end; end if; end if; end; Scan_Args : for Next_Arg in 1 .. Argument_Count loop Scan_Make_Arg (Argument (Next_Arg)); end loop Scan_Args; if Make_Steps then Do_Compile_Step := Compile_Only; Do_Bind_Step := Bind_Only; Do_Link_Step := Link_Only; if Do_Compile_Step and then Do_Link_Step then Do_Bind_Step := True; end if; end if; if N_M_Switch > 0 and RTS_Specified = null then Process_Multilib; end if; if Commands_To_Stdout then Set_Standard_Output; end if; if Usage_Requested then Usage; end if; -- Test for trailing -P switch if Project_File_Name_Present and then Project_File_Name = null then Make_Failed ("project file name missing after -P"); -- Test for trailing -o switch elsif Output_File_Name_Present and then not Output_File_Name_Seen then Make_Failed ("output file name missing after -o"); -- Test for trailing -D switch elsif Object_Directory_Present and then not Object_Directory_Seen then Make_Failed ("object directory missing after -D"); end if; -- Test for simultaneity of -i and -D if Object_Directory_Path /= null and then In_Place_Mode then Make_Failed ("-i and -D cannot be used simultaneously"); end if; -- If --subdirs= is specified, but not -P, this is equivalent to -D, -- except that the directory is created if it does not exist. if Subdirs /= null then if Object_Directory_Path /= null then Make_Failed ("--subdirs and -D cannot be used simultaneously"); elsif In_Place_Mode then Make_Failed ("--subdirs and -i cannot be used simultaneously"); else if not Is_Directory (Subdirs.all) then begin Ada.Directories.Create_Path (Subdirs.all); exception when others => Make_Failed ("unable to create object directory " & Subdirs.all); end; end if; Object_Directory_Present := True; declare Argv : constant String (1 .. Subdirs'Length) := Subdirs.all; begin Scan_Make_Arg (Argv); end; end if; end if; -- Deal with -C= switch if Gnatmake_Mapping_File /= null then -- First, check compatibility with other switches if Maximum_Processes > 1 then Make_Failed ("-C= switch is not compatible with -jnnn switch"); end if; Fmap.Initialize (Gnatmake_Mapping_File.all); Add_Switch ("-gnatem=" & Gnatmake_Mapping_File.all, Compiler); end if; Osint.Add_Default_Search_Dirs; -- Source file lookups should be cached for efficiency. Source files -- are not supposed to change. However, we do that now only if no -- project file is used; if a project file is used, we do it just -- after changing the directory to the object directory. Osint.Source_File_Data (Cache => True); -- Read gnat.adc file to initialize Fname.UF Fname.UF.Initialize; if Config_File then begin Fname.SF.Read_Source_File_Name_Pragmas; exception when Err : SFN_Scan.Syntax_Error_In_GNAT_ADC => Make_Failed (Exception_Message (Err)); end; end if; if Debug.Debug_Flag_N then Opt.Keep_Temporary_Files := True; end if; end Initialize; --------------------- -- Is_In_Obsoleted -- --------------------- function Is_In_Obsoleted (F : File_Name_Type) return Boolean is begin if F = No_File then return False; else declare Name : constant String := Get_Name_String (F); First : Natural; F2 : File_Name_Type; begin First := Name'Last; while First > Name'First and then not Is_Directory_Separator (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; else F2 := F; end if; return Obsoleted.Get (F2); end; end if; end Is_In_Obsoleted; ---------- -- Link -- ---------- procedure Link (ALI_File : File_Name_Type; Args : Argument_List; Success : out Boolean) is Link_Args : Argument_List (1 .. Args'Length + 1); begin Get_Name_String (ALI_File); Link_Args (1) := new String'(Name_Buffer (1 .. Name_Len)); Link_Args (2 .. Args'Length + 1) := Args; GNAT.OS_Lib.Normalize_Arguments (Link_Args); Display (Gnatlink.all, Link_Args); if Gnatlink_Path = null then Make_Failed ("error, unable to locate " & Gnatlink.all); end if; GNAT.OS_Lib.Spawn (Gnatlink_Path.all, Link_Args, Success); end Link; --------------------------- -- List_Bad_Compilations -- --------------------------- procedure List_Bad_Compilations is begin if not No_Exit_Message then for J in Bad_Compilation.First .. Bad_Compilation.Last loop if Bad_Compilation.Table (J).File = No_File then null; elsif not Bad_Compilation.Table (J).Found then Inform (Bad_Compilation.Table (J).File, "not found"); else Inform (Bad_Compilation.Table (J).File, "compilation error"); end if; end loop; end if; end List_Bad_Compilations; ----------------- -- List_Depend -- ----------------- procedure List_Depend is Lib_Name : File_Name_Type; Obj_Name : File_Name_Type; Src_Name : File_Name_Type; Len : Natural; Line_Pos : Natural; Line_Size : constant := 77; begin Set_Standard_Output; for A in ALIs.First .. ALIs.Last loop Lib_Name := ALIs.Table (A).Afile; -- We have to provide the full library file name in In_Place_Mode if In_Place_Mode then Lib_Name := Full_Lib_File_Name (Lib_Name); end if; Obj_Name := Object_File_Name (Lib_Name); Write_Name (Obj_Name); Write_Str (" :"); Get_Name_String (Obj_Name); Len := Name_Len; Line_Pos := Len + 2; for D in ALIs.Table (A).First_Sdep .. ALIs.Table (A).Last_Sdep loop Src_Name := Sdep.Table (D).Sfile; if Is_Internal_File_Name (Src_Name) and then not Check_Readonly_Files then null; else if not Quiet_Output then Src_Name := Full_Source_Name (Src_Name); end if; Get_Name_String (Src_Name); Len := Name_Len; if Line_Pos + Len + 1 > Line_Size then Write_Str (" \"); Write_Eol; Line_Pos := 0; end if; Line_Pos := Line_Pos + Len + 1; Write_Str (" "); Write_Name (Src_Name); end if; end loop; Write_Eol; end loop; if not Commands_To_Stdout then Set_Standard_Error; end if; end List_Depend; ----------------- -- Make_Failed -- ----------------- procedure Make_Failed (S : String) is begin Fail_Program (S); end Make_Failed; -------------------- -- Mark_Directory -- -------------------- procedure Mark_Directory (Dir : String; Mark : Lib_Mark_Type) is N : Name_Id; B : Byte; Real_Path : constant String := Normalize_Pathname (Dir, ""); begin Name_Len := 0; if Real_Path'Length = 0 then Add_Str_To_Name_Buffer (Dir); else Add_Str_To_Name_Buffer (Real_Path); end if; -- Last character is supposed to be a directory separator if not Is_Directory_Separator (Name_Buffer (Name_Len)) then Add_Char_To_Name_Buffer (Directory_Separator); end if; -- Add flags to the already existing flags N := Name_Find; B := Get_Name_Table_Byte (N); Set_Name_Table_Byte (N, B or Mark); end Mark_Directory; ---------------------- -- Process_Multilib -- ---------------------- procedure Process_Multilib is Output_FD : File_Descriptor; Output_Name : String_Access; Arg_Index : Natural := 0; Success : Boolean := False; Return_Code : Integer := 0; Multilib_Gcc_Path : String_Access; Multilib_Gcc : String_Access; N_Read : Integer := 0; Line : String (1 .. 1000); Args : Argument_List (1 .. N_M_Switch + 1); begin pragma Assert (N_M_Switch > 0 and RTS_Specified = null); -- In case we detected a multilib switch and the user has not -- manually specified a specific RTS we emulate the following command: -- gnatmake $FLAGS --RTS=$(gcc -print-multi-directory $FLAGS) -- First select the flags which might have an impact on multilib -- processing. Note that this is an heuristic selection and it -- will need to be maintained over time. The condition has to -- be kept synchronized with N_M_Switch counting in Scan_Make_Arg. for Next_Arg in 1 .. Argument_Count loop declare Argv : constant String := Argument (Next_Arg); begin if Argv'Length > 2 and then Argv (1) = '-' and then Argv (2) = 'm' and then Argv /= "-margs" -- Ignore -mieee to avoid spawning an extra gcc in this case and then Argv /= "-mieee" then Arg_Index := Arg_Index + 1; Args (Arg_Index) := new String'(Argv); end if; end; end loop; pragma Assert (Arg_Index = N_M_Switch); Args (Args'Last) := new String'("-print-multi-directory"); -- Call the GCC driver with the collected flags and save its -- output. Alternate design would be to link in gnatmake the -- relevant part of the GCC driver. Multilib_Gcc := Gcc; Multilib_Gcc_Path := GNAT.OS_Lib.Locate_Exec_On_Path (Multilib_Gcc.all); Create_Temp_Output_File (Output_FD, Output_Name); if Output_FD = Invalid_FD then return; end if; GNAT.OS_Lib.Spawn (Multilib_Gcc_Path.all, Args, Output_FD, Return_Code, False); Close (Output_FD); if Return_Code /= 0 then return; end if; -- Parse the GCC driver output which is a single line, removing CR/LF Output_FD := Open_Read (Output_Name.all, Binary); if Output_FD = Invalid_FD then return; end if; N_Read := Read (Output_FD, Line (1)'Address, Line'Length); Close (Output_FD); Delete_File (Output_Name.all, Success); for J in reverse 1 .. N_Read loop if Line (J) = ASCII.CR or else Line (J) = ASCII.LF then N_Read := N_Read - 1; else exit; end if; end loop; -- In case the standard RTS is selected do nothing if N_Read = 0 or else Line (1 .. N_Read) = "." then return; end if; -- Otherwise add -margs --RTS=output Scan_Make_Arg ("-margs"); Scan_Make_Arg ("--RTS=" & Line (1 .. N_Read)); end Process_Multilib; ------------------------------- -- Report_Compilation_Failed -- ------------------------------- procedure Report_Compilation_Failed is begin Fail_Program (""); end Report_Compilation_Failed; ------------------------ -- Sigint_Intercepted -- ------------------------ procedure Sigint_Intercepted is begin Set_Standard_Error; Write_Line ("*** Interrupted ***"); -- Send SIGINT to all outstanding compilation processes spawned for J in 1 .. Outstanding_Compiles loop Kill (Running_Compile (J).Pid, Hard_Kill => False); end loop; Finish_Program (E_No_Compile); end Sigint_Intercepted; ------------------- -- Scan_Make_Arg -- ------------------- procedure Scan_Make_Arg (Argv : String) is Success : Boolean; begin Gnatmake_Switch_Found := True; pragma Assert (Argv'First = 1); if Argv'Length = 0 then return; end if; -- If the previous switch has set the Output_File_Name_Present flag -- (that is we have seen a -o), then the next argument is the name of -- the output executable. if Output_File_Name_Present and then not Output_File_Name_Seen then Output_File_Name_Seen := True; if Argv (1) = '-' then Make_Failed ("output file name missing after -o"); else Add_Switch ("-o", Linker); Add_Switch (Executable_Name (Argv), Linker); end if; -- If the previous switch has set the Object_Directory_Present flag -- (that is we have seen a -D), then the next argument is the path name -- of the object directory. elsif Object_Directory_Present and then not Object_Directory_Seen then Object_Directory_Seen := True; if Argv (1) = '-' then Make_Failed ("object directory path name missing after -D"); elsif not Is_Directory (Argv) then Make_Failed ("cannot find object directory """ & Argv & """"); else -- Record the object directory. Make sure it ends with a directory -- separator. declare Norm : constant String := Normalize_Pathname (Argv); begin if Norm (Norm'Last) = Directory_Separator then Object_Directory_Path := new String'(Norm); else Object_Directory_Path := new String'(Norm & Directory_Separator); end if; Add_Lib_Search_Dir (Norm); -- Specify the object directory to the binder Add_Switch ("-aO" & Norm, Binder); end; end if; -- Then check if we are dealing with -cargs/-bargs/-largs/-margs. These -- options are taken as is when found in package Compiler, Binder or -- Linker of the main project file. elsif Argv = "-bargs" or else Argv = "-cargs" or else Argv = "-largs" or else Argv = "-margs" then case Argv (2) is when 'c' => Program_Args := Compiler; when 'b' => Program_Args := Binder; when 'l' => Program_Args := Linker; when 'm' => Program_Args := None; when others => raise Program_Error; end case; -- A special test is needed for the -o switch within a -largs since that -- is another way to specify the name of the final executable. elsif Program_Args = Linker and then Argv = "-o" then Make_Failed ("switch -o not allowed within a -largs. Use -o directly."); -- Check to see if we are reading switches after a -cargs, -bargs or -- -largs switch. If so, save it. elsif Program_Args /= None then -- Check to see if we are reading -I switches in order to take into -- account in the src & lib search directories. if Argv'Length > 2 and then Argv (1 .. 2) = "-I" then if Argv (3 .. Argv'Last) = "-" then Look_In_Primary_Dir := False; elsif Program_Args = Compiler then Add_Source_Search_Dir (Argv (3 .. Argv'Last)); elsif Program_Args = Binder then Add_Library_Search_Dir (Argv (3 .. Argv'Last)); end if; end if; Add_Switch (Argv, Program_Args); -- Make sure that all significant switches -m on the command line -- are counted. if Argv'Length > 2 and then Argv (1 .. 2) = "-m" and then Argv /= "-mieee" then N_M_Switch := N_M_Switch + 1; end if; -- Handle non-default compiler, binder, linker, and handle --RTS switch elsif Argv'Length > 2 and then Argv (1 .. 2) = "--" then if Argv'Length > 6 and then Argv (1 .. 6) = "--GCC=" then declare Program_Args : constant Argument_List_Access := Argument_String_To_List (Argv (7 .. Argv'Last)); begin Gcc := new String'(Program_Args.all (1).all); for J in 2 .. Program_Args.all'Last loop Add_Switch (Program_Args.all (J).all, Compiler); end loop; end; elsif Argv'Length > 11 and then Argv (1 .. 11) = "--GNATBIND=" then declare Program_Args : constant Argument_List_Access := Argument_String_To_List (Argv (12 .. Argv'Last)); begin Gnatbind := new String'(Program_Args.all (1).all); for J in 2 .. Program_Args.all'Last loop Add_Switch (Program_Args.all (J).all, Binder); end loop; end; elsif Argv'Length > 11 and then Argv (1 .. 11) = "--GNATLINK=" then declare Program_Args : constant Argument_List_Access := Argument_String_To_List (Argv (12 .. Argv'Last)); begin Gnatlink := new String'(Program_Args.all (1).all); for J in 2 .. Program_Args.all'Last loop Add_Switch (Program_Args.all (J).all, Linker); end loop; end; elsif Argv'Length >= 5 and then Argv (1 .. 5) = "--RTS" then Add_Switch (Argv, Compiler); Add_Switch (Argv, Binder); if Argv'Length <= 6 or else Argv (6) /= '=' then Make_Failed ("missing path for --RTS"); else -- Check that this is the first time we see this switch or -- if it is not the first time, the same path is specified. if RTS_Specified = null then RTS_Specified := new String'(Argv (7 .. Argv'Last)); elsif RTS_Specified.all /= Argv (7 .. Argv'Last) then Make_Failed ("--RTS cannot be specified multiple times"); end if; -- Valid --RTS switch No_Stdinc := True; No_Stdlib := True; RTS_Switch := True; declare Src_Path_Name : constant String_Ptr := Get_RTS_Search_Dir (Argv (7 .. Argv'Last), Include); Lib_Path_Name : constant String_Ptr := Get_RTS_Search_Dir (Argv (7 .. Argv'Last), Objects); begin if Src_Path_Name /= null and then Lib_Path_Name /= null then -- Set RTS_*_Path_Name variables, so that correct direct- -- ories will be set when Osint.Add_Default_Search_Dirs -- is called later. RTS_Src_Path_Name := Src_Path_Name; RTS_Lib_Path_Name := Lib_Path_Name; elsif Src_Path_Name = null and then Lib_Path_Name = null then Make_Failed ("RTS path not valid: missing adainclude and adalib " & "directories"); elsif Src_Path_Name = null then Make_Failed ("RTS path not valid: missing adainclude directory"); elsif Lib_Path_Name = null then Make_Failed ("RTS path not valid: missing adalib directory"); end if; end; end if; elsif Argv'Length >= 8 and then Argv (1 .. 8) = "--param=" then Add_Switch (Argv, Compiler); Add_Switch (Argv, Linker); elsif Argv = Create_Map_File_Switch then Map_File := new String'(""); elsif Argv'Length > Create_Map_File_Switch'Length + 1 and then Argv (1 .. Create_Map_File_Switch'Length) = Create_Map_File_Switch and then Argv (Create_Map_File_Switch'Length + 1) = '=' then Map_File := new String' (Argv (Create_Map_File_Switch'Length + 2 .. Argv'Last)); else Scan_Make_Switches (Argv, Success); end if; -- If we have seen a regular switch process it elsif Argv (1) = '-' then if Argv'Length = 1 then Make_Failed ("switch character cannot be followed by a blank"); -- Incorrect switches that should start with "--" elsif (Argv'Length > 5 and then Argv (1 .. 5) = "-RTS=") or else (Argv'Length > 5 and then Argv (1 .. 5) = "-GCC=") or else (Argv'Length > 8 and then Argv (1 .. 7) = "-param=") or else (Argv'Length > 10 and then Argv (1 .. 10) = "-GNATLINK=") or else (Argv'Length > 10 and then Argv (1 .. 10) = "-GNATBIND=") then Make_Failed ("option " & Argv & " should start with '--'"); -- -I- elsif Argv (2 .. Argv'Last) = "I-" then Look_In_Primary_Dir := False; -- Forbid -?- or -??- where ? is any character elsif (Argv'Length = 3 and then Argv (3) = '-') or else (Argv'Length = 4 and then Argv (4) = '-') then Make_Failed ("trailing ""-"" at the end of " & Argv & " forbidden."); -- -Idir elsif Argv (2) = 'I' then Add_Source_Search_Dir (Argv (3 .. Argv'Last)); Add_Library_Search_Dir (Argv (3 .. Argv'Last)); Add_Switch (Argv, Compiler); Add_Switch (Argv, Binder); -- -aIdir (to gcc this is like a -I switch) elsif Argv'Length >= 3 and then Argv (2 .. 3) = "aI" then Add_Source_Search_Dir (Argv (4 .. Argv'Last)); Add_Switch ("-I" & Argv (4 .. Argv'Last), Compiler); Add_Switch (Argv, Binder); -- -aOdir elsif Argv'Length >= 3 and then Argv (2 .. 3) = "aO" then Add_Library_Search_Dir (Argv (4 .. Argv'Last)); Add_Switch (Argv, Binder); -- -aLdir (to gnatbind this is like a -aO switch) elsif Argv'Length >= 3 and then Argv (2 .. 3) = "aL" then Mark_Directory (Argv (4 .. Argv'Last), Ada_Lib_Dir); Add_Library_Search_Dir (Argv (4 .. Argv'Last)); Add_Switch ("-aO" & Argv (4 .. Argv'Last), Binder); -- -aamp_target=... elsif Argv'Length >= 13 and then Argv (2 .. 13) = "aamp_target=" then Add_Switch (Argv, Compiler); -- Set the aamp_target environment variable so that the binder and -- linker will use the proper target library. This is consistent -- with how things work when -aamp_target is passed on the command -- line to gnaampmake. Setenv ("aamp_target", Argv (14 .. Argv'Last)); -- -Adir (to gnatbind this is like a -aO switch, to gcc like a -I) elsif Argv (2) = 'A' then Mark_Directory (Argv (3 .. Argv'Last), Ada_Lib_Dir); Add_Source_Search_Dir (Argv (3 .. Argv'Last)); Add_Library_Search_Dir (Argv (3 .. Argv'Last)); Add_Switch ("-I" & Argv (3 .. Argv'Last), Compiler); Add_Switch ("-aO" & Argv (3 .. Argv'Last), Binder); -- -Ldir elsif Argv (2) = 'L' then Add_Switch (Argv, Linker); -- For -gxxx, -pg, -mxxx, -fxxx, -Oxxx, pass the switch to both the -- compiler and the linker (except for -gnatxxx which is only for the -- compiler). Some of the -mxxx (for example -m64) and -fxxx (for -- example -ftest-coverage for gcov) need to be used when compiling -- the binder generated files, and using all these gcc switches for -- them should not be a problem. Pass -Oxxx to the linker for LTO. elsif (Argv (2) = 'g' and then (Argv'Last < 5 or else Argv (2 .. 5) /= "gnat")) or else Argv (2 .. Argv'Last) = "pg" or else (Argv (2) = 'm' and then Argv'Last > 2) or else (Argv (2) = 'f' and then Argv'Last > 2) or else Argv (2) = 'O' then Add_Switch (Argv, Compiler); Add_Switch (Argv, Linker); -- The following condition has to be kept synchronized with -- the Process_Multilib one. if Argv (2) = 'm' and then Argv /= "-mieee" then N_M_Switch := N_M_Switch + 1; end if; -- -C= elsif Argv'Last > 2 and then Argv (2) = 'C' then if Argv (3) /= '=' or else Argv'Last <= 3 then Make_Failed ("illegal switch " & Argv); end if; Gnatmake_Mapping_File := new String'(Argv (4 .. Argv'Last)); -- -D elsif Argv'Last = 2 and then Argv (2) = 'D' then if Project_File_Name /= null then Make_Failed ("-D cannot be used in conjunction with a project file"); else Scan_Make_Switches (Argv, Success); end if; -- -d elsif Argv (2) = 'd' and then Argv'Last = 2 then Display_Compilation_Progress := True; -- -i elsif Argv'Last = 2 and then Argv (2) = 'i' then if Project_File_Name /= null then Make_Failed ("-i cannot be used in conjunction with a project file"); else Scan_Make_Switches (Argv, Success); end if; -- -j (need to save the result) elsif Argv (2) = 'j' then Scan_Make_Switches (Argv, Success); -- -m elsif Argv (2) = 'm' then pragma Assert (Argv'Last = 2); Minimal_Recompilation := True; -- -u elsif Argv (2) = 'u' and then Argv'Last = 2 then Unique_Compile := True; Compile_Only := True; Do_Bind_Step := False; Do_Link_Step := False; -- -U elsif Argv (2) = 'U' and then Argv'Last = 2 then Unique_Compile := True; Compile_Only := True; Do_Bind_Step := False; Do_Link_Step := False; -- -Pprj or -P prj (only once, and only on the command line) elsif Argv (2) = 'P' then if Project_File_Name /= null then Make_Failed ("cannot have several project files specified"); elsif Object_Directory_Path /= null then Make_Failed ("-D cannot be used in conjunction with a project file"); elsif In_Place_Mode then Make_Failed ("-i cannot be used in conjunction with a project file"); elsif Argv'Last = 2 then -- -P is used alone: the project file name is the next option Project_File_Name_Present := True; else Project_File_Name := new String'(Argv (3 .. Argv'Last)); end if; -- -vPx (verbosity of the parsing of the project files) elsif Argv'Length >= 3 and then Argv (2 .. 3) = "vP" then if Argv'Last /= 4 or else Argv (4) not in '0' .. '2' then Make_Failed ("invalid verbosity level " & Argv (4 .. Argv'Last)); end if; -- -Xext=val (External assignment) elsif Argv (2) = 'X' then null; -- If -gnath is present, then generate the usage information right -- now and do not pass this option on to the compiler calls. elsif Argv = "-gnath" then Usage; -- If -gnatc is specified, make sure the bind and link steps are not -- executed. elsif Argv'Length >= 6 and then Argv (2 .. 6) = "gnatc" then -- If -gnatc is specified, make sure the bind and link steps are -- not executed. Add_Switch (Argv, Compiler); Operating_Mode := Check_Semantics; Check_Object_Consistency := False; -- Except in CodePeer mode (set by -gnatcC), where we do want to -- call bind/link in CodePeer mode (-P switch). if Argv'Last >= 7 and then Argv (7) = 'C' then CodePeer_Mode := True; else Compile_Only := True; Do_Bind_Step := False; Do_Link_Step := False; end if; -- If -gnatA is specified, make sure that gnat.adc is never read elsif Argv'Length >= 6 and then Argv (2 .. 6) = "gnatA" then Add_Switch (Argv, Compiler); Opt.Config_File := False; elsif Argv (2 .. Argv'Last) = "nostdlib" then -- Pass -nstdlib to gnatbind and gnatlink No_Stdlib := True; Add_Switch (Argv, Binder); Add_Switch (Argv, Linker); elsif Argv (2 .. Argv'Last) = "nostdinc" then -- Pass -nostdinc to the Compiler and to gnatbind No_Stdinc := True; Add_Switch (Argv, Compiler); Add_Switch (Argv, Binder); -- All other switches are processed by Scan_Make_Switches. If the -- call returns with Gnatmake_Switch_Found = False, then the switch -- is passed to the compiler. else Scan_Make_Switches (Argv, Gnatmake_Switch_Found); if not Gnatmake_Switch_Found then Add_Switch (Argv, Compiler); end if; end if; -- If not a switch it must be a file name else Main_On_Command_Line := True; Add_File (Argv); Mains.Add_Main (Argv); end if; end Scan_Make_Arg; ----------- -- Usage -- ----------- procedure Usage is begin if Usage_Needed then Usage_Needed := False; Makeusg; end if; end Usage; end Make;