1------------------------------------------------------------------------------ 2-- -- 3-- GNAT COMPILER COMPONENTS -- 4-- -- 5-- M A K E -- 6-- -- 7-- B o d y -- 8-- -- 9-- Copyright (C) 1992-2019, Free Software Foundation, Inc. -- 10-- -- 11-- GNAT is free software; you can redistribute it and/or modify it under -- 12-- terms of the GNU General Public License as published by the Free Soft- -- 13-- ware Foundation; either version 3, or (at your option) any later ver- -- 14-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- 15-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- 16-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- 17-- for more details. You should have received a copy of the GNU General -- 18-- Public License distributed with GNAT; see file COPYING3. If not, go to -- 19-- http://www.gnu.org/licenses for a complete copy of the license. -- 20-- -- 21-- GNAT was originally developed by the GNAT team at New York University. -- 22-- Extensive contributions were provided by Ada Core Technologies Inc. -- 23-- -- 24------------------------------------------------------------------------------ 25 26with ALI; use ALI; 27with ALI.Util; use ALI.Util; 28with Csets; 29with Debug; 30with Fmap; 31with Fname; use Fname; 32with Fname.SF; 33with Fname.UF; use Fname.UF; 34with Gnatvsn; use Gnatvsn; 35with Hostparm; use Hostparm; 36with Makeusg; 37with Make_Util; use Make_Util; 38with Namet; use Namet; 39with Opt; use Opt; 40with Osint.M; use Osint.M; 41with Osint; use Osint; 42with Output; use Output; 43with SFN_Scan; 44with Sinput; 45with Snames; 46with Stringt; 47 48pragma Warnings (Off); 49with System.HTable; 50pragma Warnings (On); 51 52with Switch; use Switch; 53with Switch.M; use Switch.M; 54with Table; 55with Targparm; 56with Tempdir; 57with Types; use Types; 58 59with Ada.Command_Line; use Ada.Command_Line; 60with Ada.Directories; 61with Ada.Exceptions; use Ada.Exceptions; 62 63with GNAT.Command_Line; use GNAT.Command_Line; 64with GNAT.Directory_Operations; use GNAT.Directory_Operations; 65with GNAT.OS_Lib; use GNAT.OS_Lib; 66 67package body Make is 68 69 use ASCII; 70 -- Make control characters visible 71 72 Standard_Library_Package_Body_Name : constant String := "s-stalib.adb"; 73 System_Package_Spec_Name : constant String := "system.ads"; 74 -- Every program depends on one of these packages: usually the first one, 75 -- or if Supress_Standard_Library is true on the second one. The dependency 76 -- is not always explicit and considering it is important when -f and -a 77 -- are used. 78 79 type Sigint_Handler is access procedure; 80 pragma Convention (C, Sigint_Handler); 81 82 procedure Install_Int_Handler (Handler : Sigint_Handler); 83 pragma Import (C, Install_Int_Handler, "__gnat_install_int_handler"); 84 -- Called by Gnatmake to install the SIGINT handler below 85 86 procedure Sigint_Intercepted; 87 pragma Convention (C, Sigint_Intercepted); 88 pragma No_Return (Sigint_Intercepted); 89 -- Called when the program is interrupted by Ctrl-C to delete the 90 -- temporary mapping files and configuration pragmas files. 91 92 No_Mapping_File : constant Natural := 0; 93 94 type Compilation_Data is record 95 Pid : Process_Id; 96 Full_Source_File : File_Name_Type; 97 Lib_File : File_Name_Type; 98 Source_Unit : Unit_Name_Type; 99 Full_Lib_File : File_Name_Type; 100 Lib_File_Attr : aliased File_Attributes; 101 Mapping_File : Natural := No_Mapping_File; 102 end record; 103 -- Data recorded for each compilation process spawned 104 105 No_Compilation_Data : constant Compilation_Data := 106 (Invalid_Pid, No_File, No_File, No_Unit_Name, No_File, Unknown_Attributes, 107 No_Mapping_File); 108 109 type Comp_Data_Arr is array (Positive range <>) of Compilation_Data; 110 type Comp_Data_Ptr is access Comp_Data_Arr; 111 Running_Compile : Comp_Data_Ptr; 112 -- Used to save information about outstanding compilations 113 114 Outstanding_Compiles : Natural := 0; 115 -- Current number of outstanding compiles 116 117 procedure Initialize; 118 119 Project_File_Name_Present : Boolean := False; 120 121 Project_File_Name : String_Access := null; 122 123 ------------------------- 124 -- Note on terminology -- 125 ------------------------- 126 127 -- In this program, we use the phrase "termination" of a file name to refer 128 -- to the suffix that appears after the unit name portion. Very often this 129 -- is simply the extension, but in some cases, the sequence may be more 130 -- complex, for example in main.1.ada, the termination in this name is 131 -- ".1.ada" and in main_.ada the termination is "_.ada". 132 133 Unique_Compile : Boolean := False; 134 -- Set to True if -u or -U is used 135 136 Must_Compile : Boolean := False; 137 -- True if gnatmake is invoked with -f -u and one or several mains on the 138 -- command line. 139 140 Main_On_Command_Line : Boolean := False; 141 -- True if gnatmake is invoked with one or several mains on the command 142 -- line. 143 144 RTS_Specified : String_Access := null; 145 -- Used to detect multiple --RTS= switches 146 147 N_M_Switch : Natural := 0; 148 -- Used to count -mxxx switches that can affect multilib 149 150 -- The 3 following packages are used to store gcc, gnatbind and gnatlink 151 -- switches found in the project files. 152 153 package Gcc_Switches is new Table.Table ( 154 Table_Component_Type => String_Access, 155 Table_Index_Type => Integer, 156 Table_Low_Bound => 1, 157 Table_Initial => 20, 158 Table_Increment => 100, 159 Table_Name => "Make.Gcc_Switches"); 160 161 package Binder_Switches is new Table.Table ( 162 Table_Component_Type => String_Access, 163 Table_Index_Type => Integer, 164 Table_Low_Bound => 1, 165 Table_Initial => 20, 166 Table_Increment => 100, 167 Table_Name => "Make.Binder_Switches"); 168 169 package Linker_Switches is new Table.Table ( 170 Table_Component_Type => String_Access, 171 Table_Index_Type => Integer, 172 Table_Low_Bound => 1, 173 Table_Initial => 20, 174 Table_Increment => 100, 175 Table_Name => "Make.Linker_Switches"); 176 177 package Switches_To_Check is new Table.Table ( 178 Table_Component_Type => String_Access, 179 Table_Index_Type => Integer, 180 Table_Low_Bound => 1, 181 Table_Initial => 20, 182 Table_Increment => 100, 183 Table_Name => "Make.Switches_To_Check"); 184 185 package Failed_Links is new Table.Table ( 186 Table_Component_Type => File_Name_Type, 187 Table_Index_Type => Integer, 188 Table_Low_Bound => 1, 189 Table_Initial => 10, 190 Table_Increment => 100, 191 Table_Name => "Make.Failed_Links"); 192 193 package Successful_Links is new Table.Table ( 194 Table_Component_Type => File_Name_Type, 195 Table_Index_Type => Integer, 196 Table_Low_Bound => 1, 197 Table_Initial => 10, 198 Table_Increment => 100, 199 Table_Name => "Make.Successful_Links"); 200 201 Normalized_Switches : Argument_List_Access := new Argument_List (1 .. 10); 202 Last_Norm_Switch : Natural := 0; 203 204 Map_File : String_Access := null; 205 -- Value of switch --create-map-file 206 207 procedure Add_Library_Search_Dir (Path : String); 208 -- Call Add_Lib_Search_Dir with an absolute directory path. If Path is 209 -- relative path,, it is relative to the current working directory. 210 211 procedure Add_Source_Search_Dir (Path : String); 212 -- Call Add_Src_Search_Dir with an absolute directory path. If Path is a 213 -- relative path, it is relative to the current working directory. 214 215 type Bad_Compilation_Info is record 216 File : File_Name_Type; 217 Unit : Unit_Name_Type; 218 Found : Boolean; 219 end record; 220 -- File is the name of the file for which a compilation failed. Unit is for 221 -- gnatdist use in order to easily get the unit name of a file when its 222 -- name is krunched or declared in gnat.adc. Found is False if the 223 -- compilation failed because the file could not be found. 224 225 package Bad_Compilation is new Table.Table ( 226 Table_Component_Type => Bad_Compilation_Info, 227 Table_Index_Type => Natural, 228 Table_Low_Bound => 1, 229 Table_Initial => 20, 230 Table_Increment => 100, 231 Table_Name => "Make.Bad_Compilation"); 232 -- Full name of all the source files for which compilation fails 233 234 Do_Compile_Step : Boolean := True; 235 Do_Bind_Step : Boolean := True; 236 Do_Link_Step : Boolean := True; 237 -- Flags to indicate what step should be executed. Can be set to False 238 -- with the switches -c, -b and -l. These flags are reset to True for 239 -- each invocation of procedure Gnatmake. 240 241 CodePeer_Mode_String : aliased String := "-P"; 242 243 No_Shared_Switch : aliased Argument_List := (1 .. 0 => null); 244 Bind_Shared : Argument_List_Access := No_Shared_Switch'Access; 245 -- Switch to added in front of gnatbind switches. By default no switch is 246 -- added. Switch "-shared" is added if there is a non-static Library 247 -- Project File. 248 249 Shared_Libgcc : aliased String := "-shared-libgcc"; 250 251 No_Shared_Libgcc_Switch : aliased Argument_List := (1 .. 0 => null); 252 Shared_Libgcc_Switch : aliased Argument_List := 253 (1 => Shared_Libgcc'Access); 254 Link_With_Shared_Libgcc : Argument_List_Access := 255 No_Shared_Libgcc_Switch'Access; 256 257 procedure Make_Failed (S : String); 258 pragma No_Return (Make_Failed); 259 -- Delete all temp files created by Gnatmake and call Osint.Fail, with the 260 -- parameter S (see osint.ads). 261 262 -------------------------- 263 -- Obsolete Executables -- 264 -------------------------- 265 266 Executable_Obsolete : Boolean := False; 267 -- Executable_Obsolete is initially set to False for each executable, 268 -- and is set to True whenever one of the source of the executable is 269 -- compiled, or has already been compiled for another executable. 270 271 Max_Header : constant := 200; 272 -- This needs a proper comment, it used to say "arbitrary" that's not an 273 -- adequate comment ??? 274 275 type Header_Num is range 1 .. Max_Header; 276 -- Header_Num for the hash table Obsoleted below 277 278 function Hash (F : File_Name_Type) return Header_Num; 279 -- Hash function for the hash table Obsoleted below 280 281 package Obsoleted is new System.HTable.Simple_HTable 282 (Header_Num => Header_Num, 283 Element => Boolean, 284 No_Element => False, 285 Key => File_Name_Type, 286 Hash => Hash, 287 Equal => "="); 288 -- A hash table to keep all files that have been compiled, to detect 289 -- if an executable is up to date or not. 290 291 procedure Enter_Into_Obsoleted (F : File_Name_Type); 292 -- Enter a file name, without directory information, into the hash table 293 -- Obsoleted. 294 295 function Is_In_Obsoleted (F : File_Name_Type) return Boolean; 296 -- Check if a file name, without directory information, has already been 297 -- entered into the hash table Obsoleted. 298 299 type Dependency is record 300 This : File_Name_Type; 301 Depends_On : File_Name_Type; 302 end record; 303 -- Components of table Dependencies below 304 305 package Dependencies is new Table.Table ( 306 Table_Component_Type => Dependency, 307 Table_Index_Type => Integer, 308 Table_Low_Bound => 1, 309 Table_Initial => 20, 310 Table_Increment => 100, 311 Table_Name => "Make.Dependencies"); 312 -- A table to keep dependencies, to be able to decide if an executable 313 -- is obsolete. More explanation needed ??? 314 315 ---------------------------- 316 -- Arguments and Switches -- 317 ---------------------------- 318 319 Arguments : Argument_List_Access; 320 -- Used to gather the arguments for invocation of the compiler 321 322 Last_Argument : Natural := 0; 323 -- Last index of arguments in Arguments above 324 325 Dummy_Switch : constant String_Access := new String'("- "); 326 -- Used to initialized Prev_Switch in procedure Check 327 328 procedure Add_Arguments (Args : Argument_List); 329 -- Add arguments to global variable Arguments, increasing its size 330 -- if necessary and adjusting Last_Argument. 331 332 ------------------- 333 -- Misc Routines -- 334 ------------------- 335 336 procedure List_Depend; 337 -- Prints to standard output the list of object dependencies. This list 338 -- can be used directly in a Makefile. A call to Compile_Sources must 339 -- precede the call to List_Depend. Also because this routine uses the 340 -- ALI files that were originally loaded and scanned by Compile_Sources, 341 -- no additional ALI files should be scanned between the two calls (i.e. 342 -- between the call to Compile_Sources and List_Depend.) 343 344 procedure List_Bad_Compilations; 345 -- Prints out the list of all files for which the compilation failed 346 347 Usage_Needed : Boolean := True; 348 -- Flag used to make sure Makeusg is call at most once 349 350 procedure Usage; 351 -- Call Makeusg, if Usage_Needed is True. 352 -- Set Usage_Needed to False. 353 354 procedure Debug_Msg (S : String; N : Name_Id); 355 procedure Debug_Msg (S : String; N : File_Name_Type); 356 procedure Debug_Msg (S : String; N : Unit_Name_Type); 357 -- If Debug.Debug_Flag_W is set outputs string S followed by name N 358 359 ----------------------- 360 -- Gnatmake Routines -- 361 ----------------------- 362 363 subtype Lib_Mark_Type is Byte; 364 -- Used in Mark_Directory 365 366 Ada_Lib_Dir : constant Lib_Mark_Type := 1; 367 -- Used to mark a directory as a GNAT lib dir 368 369 -- Note that the notion of GNAT lib dir is no longer used. The code related 370 -- to it has not been removed to give an idea on how to use the directory 371 -- prefix marking mechanism. 372 373 -- An Ada library directory is a directory containing ali and object files 374 -- but no source files for the bodies (the specs can be in the same or some 375 -- other directory). These directories are specified in the Gnatmake 376 -- command line with the switch "-Adir" (to specify the spec location -Idir 377 -- cab be used). Gnatmake skips the missing sources whose ali are in Ada 378 -- library directories. For an explanation of why Gnatmake behaves that 379 -- way, see the spec of Make.Compile_Sources. The directory lookup penalty 380 -- is incurred every single time this routine is called. 381 382 function In_Ada_Lib_Dir (File : File_Name_Type) return Boolean; 383 -- Get directory prefix of this file and get lib mark stored in name 384 -- table for this directory. Then check if an Ada lib mark has been set. 385 386 procedure Mark_Directory (Dir : String; Mark : Lib_Mark_Type); 387 -- Store the absolute path from Dir in name table and set lib mark as name 388 -- info to identify Ada libraries. 389 -- 390 -- If Dir is a relative path, it is relative to the current working 391 -- directory. 392 393 Output_Is_Object : Boolean := True; 394 -- Set to False when using a switch -S for the compiler 395 396 procedure Check_For_S_Switch; 397 -- Set Output_Is_Object to False when the -S switch is used for the 398 -- compiler. 399 400 procedure Process_Multilib; 401 -- Add appropriate --RTS argument to handle multilib 402 403 procedure Compute_Executable 404 (Main_Source_File : File_Name_Type; 405 Executable : out File_Name_Type; 406 Non_Std_Executable : out Boolean); 407 -- Parse the linker switches and project file to compute the name of the 408 -- executable to generate. 409 -- ??? What is the meaning of Non_Std_Executable 410 411 procedure Compilation_Phase 412 (Main_Source_File : File_Name_Type; 413 Current_Main_Index : Int := 0; 414 Total_Compilation_Failures : in out Natural; 415 Executable : File_Name_Type := No_File; 416 Stop_Compile : out Boolean); 417 -- Build all source files for a given main file 418 -- 419 -- Current_Main_Index, if not zero, is the index of the current main unit 420 -- in its source file. 421 -- 422 -- Stand_Alone_Libraries is set to True when there are Stand-Alone 423 -- Libraries, so that gnatbind is invoked with the -F switch to force 424 -- checking of elaboration flags. 425 -- 426 -- Stop_Compile is set to true if we should not try to compile any more 427 -- of the main units 428 429 procedure Binding_Phase 430 (Main_ALI_File : File_Name_Type); 431 -- Stand_Alone_Libraries should be set to True when there are Stand-Alone 432 -- Libraries, so that gnatbind is invoked with the -F switch to force 433 -- checking of elaboration flags. 434 435 procedure Linking_Phase 436 (Non_Std_Executable : Boolean := False; 437 Executable : File_Name_Type := No_File; 438 Main_ALI_File : File_Name_Type); 439 -- Perform the link of a single executable. The ali file corresponds 440 -- to Main_ALI_File. Executable is the file name of an executable. 441 -- Non_Std_Executable is set to True when there is a possibility that 442 -- the linker will not choose the correct executable file name. 443 444 ---------------------------------------------------- 445 -- Compiler, Binder & Linker Data and Subprograms -- 446 ---------------------------------------------------- 447 448 Gcc : String_Access := Program_Name ("ada", "gnatmake"); 449 Gnatbind : String_Access := Program_Name ("gnatbind", "gnatmake"); 450 Gnatlink : String_Access := Program_Name ("gnatlink", "gnatmake"); 451 -- Default compiler, binder, linker programs 452 453 Gcc_Path : String_Access := 454 GNAT.OS_Lib.Locate_Exec_On_Path (Gcc.all); 455 Gnatbind_Path : String_Access := 456 GNAT.OS_Lib.Locate_Exec_On_Path (Gnatbind.all); 457 Gnatlink_Path : String_Access := 458 GNAT.OS_Lib.Locate_Exec_On_Path (Gnatlink.all); 459 -- Path for compiler, binder, linker programs, defaulted now for gnatdist. 460 -- Changed later if overridden on command line. 461 462 Comp_Flag : constant String_Access := new String'("-c"); 463 Output_Flag : constant String_Access := new String'("-o"); 464 Ada_Flag_1 : constant String_Access := new String'("-x"); 465 Ada_Flag_2 : constant String_Access := new String'("ada"); 466 AdaSCIL_Flag : constant String_Access := new String'("adascil"); 467 GNAT_Flag : constant String_Access := new String'("-gnatpg"); 468 Do_Not_Check_Flag : constant String_Access := new String'("-x"); 469 470 Object_Suffix : constant String := Get_Target_Object_Suffix.all; 471 472 Syntax_Only : Boolean := False; 473 -- Set to True when compiling with -gnats 474 475 Output_File_Name_Seen : Boolean := False; 476 -- Set to True after having scanned the file_name for 477 -- switch "-o file_name" 478 479 Object_Directory_Seen : Boolean := False; 480 -- Set to True after having scanned the object directory for 481 -- switch "-D obj_dir". 482 483 Object_Directory_Path : String_Access := null; 484 -- The path name of the object directory, set with switch -D 485 486 type Make_Program_Type is (None, Compiler, Binder, Linker); 487 488 Program_Args : Make_Program_Type := None; 489 -- Used to indicate if we are scanning gnatmake, gcc, gnatbind, or gnatbind 490 -- options within the gnatmake command line. Used in Scan_Make_Arg only, 491 -- but must be global since value preserved from one call to another. 492 493 procedure Add_Switch 494 (S : String_Access; 495 Program : Make_Program_Type; 496 Append_Switch : Boolean := True); 497 procedure Add_Switch 498 (S : String; 499 Program : Make_Program_Type; 500 Append_Switch : Boolean := True); 501 -- Make invokes one of three programs (the compiler, the binder or the 502 -- linker). For the sake of convenience, some program specific switches 503 -- can be passed directly on the gnatmake command line. This procedure 504 -- records these switches so that gnatmake can pass them to the right 505 -- program. S is the switch to be added at the end of the command line 506 -- for Program if Append_Switch is True. If Append_Switch is False S is 507 -- added at the beginning of the command line. 508 509 procedure Check 510 (Source_File : File_Name_Type; 511 The_Args : Argument_List; 512 Lib_File : File_Name_Type; 513 Full_Lib_File : File_Name_Type; 514 Lib_File_Attr : access File_Attributes; 515 Read_Only : Boolean; 516 ALI : out ALI_Id; 517 O_File : out File_Name_Type; 518 O_Stamp : out Time_Stamp_Type); 519 -- Determines whether the library file Lib_File is up-to-date or not. The 520 -- full name (with path information) of the object file corresponding to 521 -- Lib_File is returned in O_File. Its time stamp is saved in O_Stamp. 522 -- ALI is the ALI_Id corresponding to Lib_File. If Lib_File in not 523 -- up-to-date, then the corresponding source file needs to be recompiled. 524 -- In this case ALI = No_ALI_Id. 525 -- Full_Lib_File must be the result of calling Osint.Full_Lib_File_Name on 526 -- Lib_File. Precomputing it saves system calls. Lib_File_Attr is the 527 -- initialized attributes of that file, which is also used to save on 528 -- system calls (it can safely be initialized to Unknown_Attributes). 529 530 procedure Check_Linker_Options 531 (E_Stamp : Time_Stamp_Type; 532 O_File : out File_Name_Type; 533 O_Stamp : out Time_Stamp_Type); 534 -- Checks all linker options for linker files that are newer 535 -- than E_Stamp. If such objects are found, the youngest object 536 -- is returned in O_File and its stamp in O_Stamp. 537 -- 538 -- If no obsolete linker files were found, the first missing 539 -- linker file is returned in O_File and O_Stamp is empty. 540 -- Otherwise O_File is No_File. 541 542 procedure Collect_Arguments (Args : Argument_List); 543 -- Collect all arguments for a source to be compiled. 544 545 procedure Display (Program : String; Args : Argument_List); 546 -- Displays Program followed by the arguments in Args if variable 547 -- Display_Executed_Programs is set. The lower bound of Args must be 1. 548 549 procedure Report_Compilation_Failed; 550 pragma No_Return (Report_Compilation_Failed); 551 -- Delete all temporary files and fail graciously 552 553 ----------------- 554 -- Mapping files 555 ----------------- 556 557 type Temp_Path_Names is array (Positive range <>) of Path_Name_Type; 558 type Temp_Path_Ptr is access Temp_Path_Names; 559 560 type Free_File_Indexes is array (Positive range <>) of Positive; 561 type Free_Indexes_Ptr is access Free_File_Indexes; 562 563 type Mapping_File_Data is record 564 Mapping_File_Names : Temp_Path_Ptr; 565 -- The name ids of the temporary mapping files used. This is indexed 566 -- on the maximum number of compilation processes we will be spawning 567 -- (-j parameter) 568 569 Last_Mapping_File_Names : Natural; 570 -- Index of the last mapping file created for this project 571 572 Free_Mapping_File_Indexes : Free_Indexes_Ptr; 573 -- Indexes in Mapping_File_Names of the mapping file names that can be 574 -- reused for subsequent compilations. 575 576 Last_Free_Indexes : Natural; 577 -- Number of mapping files that can be reused 578 end record; 579 -- Information necessary when compiling a project 580 581 The_Mapping_Files : Mapping_File_Data; 582 583 Gnatmake_Mapping_File : String_Access := null; 584 -- The path name of a mapping file specified by switch -C= 585 586 procedure Init_Mapping_File (File_Index : out Natural); 587 -- Create a new mapping file or reuse one already created. 588 589 package Temp_File_Paths is new Table.Table 590 (Table_Component_Type => Path_Name_Type, 591 Table_Index_Type => Natural, 592 Table_Low_Bound => 1, 593 Table_Initial => 4, 594 Table_Increment => 100, 595 Table_Name => "Make.Temp_File_Paths", 596 Release_Threshold => 0); 597 598 procedure Record_Temp_File (Path : Path_Name_Type); 599 -- Record the path of a temporary file, so that it can be deleted at the 600 -- end of execution of gnatmake. 601 602 procedure Record_Temp_File (Path : Path_Name_Type) is 603 begin 604 for J in 1 .. Temp_File_Paths.Last loop 605 if Temp_File_Paths.Table (J) = Path then 606 return; 607 end if; 608 end loop; 609 610 Temp_File_Paths.Append (Path); 611 end Record_Temp_File; 612 613 ------------------------------------------------- 614 -- Subprogram declarations moved from the spec -- 615 ------------------------------------------------- 616 617 procedure Bind (ALI_File : File_Name_Type; Args : Argument_List); 618 -- Binds ALI_File. Args are the arguments to pass to the binder. 619 -- Args must have a lower bound of 1. 620 621 -- If a compilation, bind or link failed one of the following 3 exceptions 622 -- is raised. These need to be handled by the calling routines. 623 624 procedure Compile_Sources 625 (Main_Source : File_Name_Type; 626 Args : Argument_List; 627 First_Compiled_File : out File_Name_Type; 628 Most_Recent_Obj_File : out File_Name_Type; 629 Most_Recent_Obj_Stamp : out Time_Stamp_Type; 630 Main_Unit : out Boolean; 631 Compilation_Failures : out Natural; 632 Main_Index : Int := 0; 633 Check_Readonly_Files : Boolean := False; 634 Do_Not_Execute : Boolean := False; 635 Force_Compilations : Boolean := False; 636 Keep_Going : Boolean := False; 637 In_Place_Mode : Boolean := False; 638 Initialize_ALI_Data : Boolean := True; 639 Max_Process : Positive := 1); 640 -- Compile_Sources will recursively compile all the sources needed by 641 -- Main_Source. Before calling this routine make sure Namet has been 642 -- initialized. This routine can be called repeatedly with different 643 -- Main_Source file as long as all the source (-I flags), library 644 -- (-B flags) and ada library (-A flags) search paths between calls are 645 -- *exactly* the same. The default directory must also be the same. 646 -- 647 -- Args contains the arguments to use during the compilations. 648 -- The lower bound of Args must be 1. 649 -- 650 -- First_Compiled_File is set to the name of the first file that is 651 -- compiled or that needs to be compiled. This is set to No_Name if no 652 -- compilations were needed. 653 -- 654 -- Most_Recent_Obj_File is set to the full name of the most recent 655 -- object file found when no compilations are needed, that is when 656 -- First_Compiled_File is set to No_Name. When First_Compiled_File 657 -- is set then Most_Recent_Obj_File is set to No_Name. 658 -- 659 -- Most_Recent_Obj_Stamp is the time stamp of Most_Recent_Obj_File. 660 -- 661 -- Main_Unit is set to True if Main_Source can be a main unit. 662 -- If Do_Not_Execute is False and First_Compiled_File /= No_Name 663 -- the value of Main_Unit is always False. 664 -- Is this used any more??? It is certainly not used by gnatmake??? 665 -- 666 -- Compilation_Failures is a count of compilation failures. This count 667 -- is used to extract compilation failure reports with Extract_Failure. 668 -- 669 -- Main_Index, when not zero, is the index of the main unit in source 670 -- file Main_Source which is a multi-unit source. 671 -- Zero indicates that Main_Source is a single unit source file. 672 -- 673 -- Check_Readonly_Files set it to True to compile source files 674 -- which library files are read-only. When compiling GNAT predefined 675 -- files the "-gnatg" flag is used. 676 -- 677 -- Do_Not_Execute set it to True to find out the first source that 678 -- needs to be recompiled, but without recompiling it. This file is 679 -- saved in First_Compiled_File. 680 -- 681 -- Force_Compilations forces all compilations no matter what but 682 -- recompiles read-only files only if Check_Readonly_Files 683 -- is set. 684 -- 685 -- Keep_Going when True keep compiling even in the presence of 686 -- compilation errors. 687 -- 688 -- In_Place_Mode when True save library/object files in their object 689 -- directory if they already exist; otherwise, in the source directory. 690 -- 691 -- Initialize_ALI_Data set it to True when you want to initialize ALI 692 -- data-structures. This is what you should do most of the time. 693 -- (especially the first time around when you call this routine). 694 -- This parameter is set to False to preserve previously recorded 695 -- ALI file data. 696 -- 697 -- Max_Process is the maximum number of processes that should be spawned 698 -- to carry out compilations. 699 -- 700 -- Flags in Package Opt Affecting Compile_Sources 701 -- ----------------------------------------------- 702 -- 703 -- Check_Object_Consistency set it to False to omit all consistency 704 -- checks between an .ali file and its corresponding object file. 705 -- When this flag is set to true, every time an .ali is read, 706 -- package Osint checks that the corresponding object file 707 -- exists and is more recent than the .ali. 708 -- 709 -- Use of Name Table Info 710 -- ---------------------- 711 -- 712 -- All file names manipulated by Compile_Sources are entered into the 713 -- Names table. The Byte field of a source file is used to mark it. 714 -- 715 -- Calling Compile_Sources Several Times 716 -- ------------------------------------- 717 -- 718 -- Upon return from Compile_Sources all the ALI data structures are left 719 -- intact for further browsing. HOWEVER upon entry to this routine ALI 720 -- data structures are re-initialized if parameter Initialize_ALI_Data 721 -- above is set to true. Typically this is what you want the first time 722 -- you call Compile_Sources. You should not load an ali file, call this 723 -- routine with flag Initialize_ALI_Data set to True and then expect 724 -- that ALI information to be around after the call. Note that the first 725 -- time you call Compile_Sources you better set Initialize_ALI_Data to 726 -- True unless you have called Initialize_ALI yourself. 727 -- 728 -- Compile_Sources ALGORITHM : Compile_Sources (Main_Source) 729 -- ------------------------- 730 -- 731 -- 1. Insert Main_Source in a Queue (Q) and mark it. 732 -- 733 -- 2. Let unit.adb be the file at the head of the Q. If unit.adb is 734 -- missing but its corresponding ali file is in an Ada library directory 735 -- (see below) then, remove unit.adb from the Q and goto step 4. 736 -- Otherwise, look at the files under the D (dependency) section of 737 -- unit.ali. If unit.ali does not exist or some of the time stamps do 738 -- not match, (re)compile unit.adb. 739 -- 740 -- An Ada library directory is a directory containing Ada specs, ali 741 -- and object files but no source files for the bodies. An Ada library 742 -- directory is communicated to gnatmake by means of some switch so that 743 -- gnatmake can skip the sources whole ali are in that directory. 744 -- There are two reasons for skipping the sources in this case. Firstly, 745 -- Ada libraries typically come without full sources but binding and 746 -- linking against those libraries is still possible. Secondly, it would 747 -- be very wasteful for gnatmake to systematically check the consistency 748 -- of every external Ada library used in a program. The binder is 749 -- already in charge of catching any potential inconsistencies. 750 -- 751 -- 3. Look into the W section of unit.ali and insert into the Q all 752 -- unmarked source files. Mark all files newly inserted in the Q. 753 -- Specifically, assuming that the W section looks like 754 -- 755 -- W types%s types.adb types.ali 756 -- W unchecked_deallocation%s 757 -- W xref_tab%s xref_tab.adb xref_tab.ali 758 -- 759 -- Then xref_tab.adb and types.adb are inserted in the Q if they are not 760 -- already marked. 761 -- Note that there is no file listed under W unchecked_deallocation%s 762 -- so no generic body should ever be explicitly compiled (unless the 763 -- Main_Source at the start was a generic body). 764 -- 765 -- 4. Repeat steps 2 and 3 above until the Q is empty 766 -- 767 -- Note that the above algorithm works because the units withed in 768 -- subunits are transitively included in the W section (with section) of 769 -- the main unit. Likewise the withed units in a generic body needed 770 -- during a compilation are also transitively included in the W section 771 -- of the originally compiled file. 772 773 procedure Link 774 (ALI_File : File_Name_Type; 775 Args : Argument_List; 776 Success : out Boolean); 777 -- Links ALI_File. Args are the arguments to pass to the linker. 778 -- Args must have a lower bound of 1. Success indicates if the link 779 -- succeeded or not. 780 781 Gnatmake_Switch_Found : Boolean := False; 782 783 procedure Scan_Make_Arg (Argv : String); 784 -- Scan make arguments. Argv is a single argument to be processed. 785 786 ------------------- 787 -- Add_Arguments -- 788 ------------------- 789 790 procedure Add_Arguments (Args : Argument_List) is 791 begin 792 if Arguments = null then 793 Arguments := new Argument_List (1 .. Args'Length + 10); 794 795 else 796 while Last_Argument + Args'Length > Arguments'Last loop 797 declare 798 New_Arguments : constant Argument_List_Access := 799 new Argument_List (1 .. Arguments'Last * 2); 800 begin 801 New_Arguments (1 .. Last_Argument) := 802 Arguments (1 .. Last_Argument); 803 Arguments := New_Arguments; 804 end; 805 end loop; 806 end if; 807 808 Arguments (Last_Argument + 1 .. Last_Argument + Args'Length) := Args; 809 Last_Argument := Last_Argument + Args'Length; 810 end Add_Arguments; 811 812 ---------------------------- 813 -- Add_Library_Search_Dir -- 814 ---------------------------- 815 816 procedure Add_Library_Search_Dir (Path : String) is 817 begin 818 Add_Lib_Search_Dir (Normalize_Pathname (Path)); 819 end Add_Library_Search_Dir; 820 821 --------------------------- 822 -- Add_Source_Search_Dir -- 823 --------------------------- 824 825 procedure Add_Source_Search_Dir (Path : String) is 826 begin 827 Add_Src_Search_Dir (Normalize_Pathname (Path)); 828 end Add_Source_Search_Dir; 829 830 ---------------- 831 -- Add_Switch -- 832 ---------------- 833 834 procedure Add_Switch 835 (S : String_Access; 836 Program : Make_Program_Type; 837 Append_Switch : Boolean := True) 838 is 839 generic 840 with package T is new Table.Table (<>); 841 procedure Generic_Position (New_Position : out Integer); 842 -- Generic procedure that chooses a position for S in T at the 843 -- beginning or the end, depending on the boolean Append_Switch. 844 -- Calling this procedure may expand the table. 845 846 ---------------------- 847 -- Generic_Position -- 848 ---------------------- 849 850 procedure Generic_Position (New_Position : out Integer) is 851 begin 852 T.Increment_Last; 853 854 if Append_Switch then 855 New_Position := Integer (T.Last); 856 else 857 for J in reverse T.Table_Index_Type'Succ (T.First) .. T.Last loop 858 T.Table (J) := T.Table (T.Table_Index_Type'Pred (J)); 859 end loop; 860 861 New_Position := Integer (T.First); 862 end if; 863 end Generic_Position; 864 865 procedure Gcc_Switches_Pos is new Generic_Position (Gcc_Switches); 866 procedure Binder_Switches_Pos is new Generic_Position (Binder_Switches); 867 procedure Linker_Switches_Pos is new Generic_Position (Linker_Switches); 868 869 New_Position : Integer; 870 871 -- Start of processing for Add_Switch 872 873 begin 874 case Program is 875 when Compiler => 876 Gcc_Switches_Pos (New_Position); 877 Gcc_Switches.Table (New_Position) := S; 878 879 when Binder => 880 Binder_Switches_Pos (New_Position); 881 Binder_Switches.Table (New_Position) := S; 882 883 when Linker => 884 Linker_Switches_Pos (New_Position); 885 Linker_Switches.Table (New_Position) := S; 886 887 when None => 888 raise Program_Error; 889 end case; 890 end Add_Switch; 891 892 procedure Add_Switch 893 (S : String; 894 Program : Make_Program_Type; 895 Append_Switch : Boolean := True) 896 is 897 begin 898 Add_Switch (S => new String'(S), 899 Program => Program, 900 Append_Switch => Append_Switch); 901 end Add_Switch; 902 903 ---------- 904 -- Bind -- 905 ---------- 906 907 procedure Bind (ALI_File : File_Name_Type; Args : Argument_List) is 908 Bind_Args : Argument_List (1 .. Args'Last + 2); 909 Bind_Last : Integer; 910 Success : Boolean; 911 912 begin 913 pragma Assert (Args'First = 1); 914 915 -- Optimize the simple case where the gnatbind command line looks like 916 -- gnatbind -aO. -I- file.ali 917 -- into 918 -- gnatbind file.adb 919 920 if Args'Length = 2 921 and then Args (Args'First).all = "-aO" & Normalized_CWD 922 and then Args (Args'Last).all = "-I-" 923 and then ALI_File = Strip_Directory (ALI_File) 924 then 925 Bind_Last := Args'First - 1; 926 927 else 928 Bind_Last := Args'Last; 929 Bind_Args (Args'Range) := Args; 930 end if; 931 932 -- It is completely pointless to re-check source file time stamps. This 933 -- has been done already by gnatmake 934 935 Bind_Last := Bind_Last + 1; 936 Bind_Args (Bind_Last) := Do_Not_Check_Flag; 937 938 Get_Name_String (ALI_File); 939 940 Bind_Last := Bind_Last + 1; 941 Bind_Args (Bind_Last) := new String'(Name_Buffer (1 .. Name_Len)); 942 943 GNAT.OS_Lib.Normalize_Arguments (Bind_Args (Args'First .. Bind_Last)); 944 945 Display (Gnatbind.all, Bind_Args (Args'First .. Bind_Last)); 946 947 if Gnatbind_Path = null then 948 Make_Failed ("error, unable to locate " & Gnatbind.all); 949 end if; 950 951 GNAT.OS_Lib.Spawn 952 (Gnatbind_Path.all, Bind_Args (Args'First .. Bind_Last), Success); 953 954 if not Success then 955 Make_Failed ("*** bind failed."); 956 end if; 957 end Bind; 958 959 ----------- 960 -- Check -- 961 ----------- 962 963 procedure Check 964 (Source_File : File_Name_Type; 965 The_Args : Argument_List; 966 Lib_File : File_Name_Type; 967 Full_Lib_File : File_Name_Type; 968 Lib_File_Attr : access File_Attributes; 969 Read_Only : Boolean; 970 ALI : out ALI_Id; 971 O_File : out File_Name_Type; 972 O_Stamp : out Time_Stamp_Type) 973 is 974 function First_New_Spec (A : ALI_Id) return File_Name_Type; 975 -- Looks in the with table entries of A and returns the spec file name 976 -- of the first withed unit (subprogram) for which no spec existed when 977 -- A was generated but for which there exists one now, implying that A 978 -- is now obsolete. If no such unit is found No_File is returned. 979 -- Otherwise the spec file name of the unit is returned. 980 -- 981 -- **WARNING** in the event of Uname format modifications, one *MUST* 982 -- make sure this function is also updated. 983 -- 984 -- Note: This function should really be in ali.adb and use Uname 985 -- services, but this causes the whole compiler to be dragged along 986 -- for gnatbind and gnatmake. 987 988 -------------------- 989 -- First_New_Spec -- 990 -------------------- 991 992 function First_New_Spec (A : ALI_Id) return File_Name_Type is 993 Spec_File_Name : File_Name_Type := No_File; 994 995 function New_Spec (Uname : Unit_Name_Type) return Boolean; 996 -- Uname is the name of the spec or body of some ada unit. This 997 -- function returns True if the Uname is the name of a body which has 998 -- a spec not mentioned in ALI file A. If True is returned 999 -- Spec_File_Name above is set to the name of this spec file. 1000 1001 -------------- 1002 -- New_Spec -- 1003 -------------- 1004 1005 function New_Spec (Uname : Unit_Name_Type) return Boolean is 1006 Spec_Name : Unit_Name_Type; 1007 File_Name : File_Name_Type; 1008 1009 begin 1010 -- Test whether Uname is the name of a body unit (i.e. ends 1011 -- with %b). 1012 1013 Get_Name_String (Uname); 1014 pragma 1015 Assert (Name_Len > 2 and then Name_Buffer (Name_Len - 1) = '%'); 1016 1017 if Name_Buffer (Name_Len) /= 'b' then 1018 return False; 1019 end if; 1020 1021 -- Convert unit name into spec name 1022 1023 -- ??? this code seems dubious in presence of pragma 1024 -- Source_File_Name since there is no more direct relationship 1025 -- between unit name and file name. 1026 1027 -- ??? Further, what about alternative subunit naming 1028 1029 Name_Buffer (Name_Len) := 's'; 1030 Spec_Name := Name_Find; 1031 File_Name := Get_File_Name (Spec_Name, Subunit => False); 1032 1033 -- Look if File_Name is mentioned in A's sdep list. 1034 -- If not look if the file exists. If it does return True. 1035 1036 for D in 1037 ALIs.Table (A).First_Sdep .. ALIs.Table (A).Last_Sdep 1038 loop 1039 if Sdep.Table (D).Sfile = File_Name then 1040 return False; 1041 end if; 1042 end loop; 1043 1044 if Full_Source_Name (File_Name) /= No_File then 1045 Spec_File_Name := File_Name; 1046 return True; 1047 end if; 1048 1049 return False; 1050 end New_Spec; 1051 1052 -- Start of processing for First_New_Spec 1053 1054 begin 1055 U_Chk : for U in 1056 ALIs.Table (A).First_Unit .. ALIs.Table (A).Last_Unit 1057 loop 1058 exit U_Chk when Units.Table (U).Utype = Is_Body_Only 1059 and then New_Spec (Units.Table (U).Uname); 1060 1061 for W in Units.Table (U).First_With 1062 .. 1063 Units.Table (U).Last_With 1064 loop 1065 exit U_Chk when 1066 Withs.Table (W).Afile /= No_File 1067 and then New_Spec (Withs.Table (W).Uname); 1068 end loop; 1069 end loop U_Chk; 1070 1071 return Spec_File_Name; 1072 end First_New_Spec; 1073 1074 --------------------------------- 1075 -- Data declarations for Check -- 1076 --------------------------------- 1077 1078 Full_Obj_File : File_Name_Type; 1079 -- Full name of the object file corresponding to Lib_File 1080 1081 Lib_Stamp : Time_Stamp_Type; 1082 -- Time stamp of the current ada library file 1083 1084 Obj_Stamp : Time_Stamp_Type; 1085 -- Time stamp of the current object file 1086 1087 Modified_Source : File_Name_Type; 1088 -- The first source in Lib_File whose current time stamp differs from 1089 -- that stored in Lib_File. 1090 1091 New_Spec : File_Name_Type; 1092 -- If Lib_File contains in its W (with) section a body (for a 1093 -- subprogram) for which there exists a spec, and the spec did not 1094 -- appear in the Sdep section of Lib_File, New_Spec contains the file 1095 -- name of this new spec. 1096 1097 Source_Name : File_Name_Type; 1098 Text : Text_Buffer_Ptr; 1099 1100 First_Arg : Arg_Id; 1101 -- Index of the first argument in Args.Table for a given unit 1102 1103 Last_Arg : Arg_Id; 1104 -- Index of the last argument in Args.Table for a given unit 1105 1106 Arg : Arg_Id := Arg_Id'First; 1107 -- Current index in Args.Table for a given unit (init to stop warning) 1108 1109 Number_Of_Switches : Natural; 1110 -- Number of switches recorded for a given unit 1111 1112 Prev_Switch : String_Access; 1113 -- Previous switch processed 1114 1115 Switch_Found : Boolean; 1116 -- True if a given switch has been found 1117 1118 begin 1119 pragma Assert (Lib_File /= No_File); 1120 1121 -- If ALI file is read-only, temporarily set Check_Object_Consistency to 1122 -- False. We don't care if the object file is not there (presumably a 1123 -- library will be used for linking.) 1124 1125 if Read_Only then 1126 declare 1127 Saved_Check_Object_Consistency : constant Boolean := 1128 Check_Object_Consistency; 1129 begin 1130 Check_Object_Consistency := False; 1131 Text := Read_Library_Info_From_Full (Full_Lib_File, Lib_File_Attr); 1132 Check_Object_Consistency := Saved_Check_Object_Consistency; 1133 end; 1134 1135 else 1136 Text := Read_Library_Info_From_Full (Full_Lib_File, Lib_File_Attr); 1137 end if; 1138 1139 Full_Obj_File := Full_Object_File_Name; 1140 Lib_Stamp := Current_Library_File_Stamp; 1141 Obj_Stamp := Current_Object_File_Stamp; 1142 1143 if Full_Lib_File = No_File then 1144 Verbose_Msg 1145 (Lib_File, 1146 "being checked ...", 1147 Prefix => " ", 1148 Minimum_Verbosity => Opt.Medium); 1149 else 1150 Verbose_Msg 1151 (Full_Lib_File, 1152 "being checked ...", 1153 Prefix => " ", 1154 Minimum_Verbosity => Opt.Medium); 1155 end if; 1156 1157 ALI := No_ALI_Id; 1158 O_File := Full_Obj_File; 1159 O_Stamp := Obj_Stamp; 1160 1161 if Text = null then 1162 if Full_Lib_File = No_File then 1163 Verbose_Msg (Lib_File, "missing."); 1164 1165 elsif Obj_Stamp (Obj_Stamp'First) = ' ' then 1166 Verbose_Msg (Full_Obj_File, "missing."); 1167 1168 else 1169 Verbose_Msg 1170 (Full_Lib_File, "(" & String (Lib_Stamp) & ") newer than", 1171 Full_Obj_File, "(" & String (Obj_Stamp) & ")"); 1172 end if; 1173 1174 else 1175 ALI := Scan_ALI (Lib_File, Text, Ignore_ED => False, Err => True); 1176 Free (Text); 1177 1178 if ALI = No_ALI_Id then 1179 Verbose_Msg (Full_Lib_File, "incorrectly formatted ALI file"); 1180 return; 1181 1182 elsif ALIs.Table (ALI).Ver (1 .. ALIs.Table (ALI).Ver_Len) /= 1183 Verbose_Library_Version 1184 then 1185 Verbose_Msg (Full_Lib_File, "compiled with old GNAT version"); 1186 ALI := No_ALI_Id; 1187 return; 1188 end if; 1189 1190 -- Don't take ALI file into account if it was generated with errors 1191 1192 if ALIs.Table (ALI).Compile_Errors then 1193 Verbose_Msg (Full_Lib_File, "had errors, must be recompiled"); 1194 ALI := No_ALI_Id; 1195 return; 1196 end if; 1197 1198 -- Don't take ALI file into account if no object was generated 1199 1200 if Operating_Mode /= Check_Semantics 1201 and then ALIs.Table (ALI).No_Object 1202 then 1203 Verbose_Msg (Full_Lib_File, "has no corresponding object"); 1204 ALI := No_ALI_Id; 1205 return; 1206 end if; 1207 1208 -- When compiling with -gnatc, don't take ALI file into account if 1209 -- it has not been generated for the current source, for example if 1210 -- it has been generated for the spec, but we are compiling the body. 1211 1212 if Operating_Mode = Check_Semantics then 1213 declare 1214 File_Name : String := Get_Name_String (Source_File); 1215 OK : Boolean := False; 1216 1217 begin 1218 -- In the ALI file, the source file names are in canonical case 1219 1220 Canonical_Case_File_Name (File_Name); 1221 1222 for U in ALIs.Table (ALI).First_Unit .. 1223 ALIs.Table (ALI).Last_Unit 1224 loop 1225 OK := Get_Name_String (Units.Table (U).Sfile) = File_Name; 1226 exit when OK; 1227 end loop; 1228 1229 if not OK then 1230 Verbose_Msg 1231 (Full_Lib_File, "not generated for the same source"); 1232 ALI := No_ALI_Id; 1233 return; 1234 end if; 1235 end; 1236 end if; 1237 1238 -- Check for matching compiler switches if needed 1239 1240 if Check_Switches then 1241 1242 -- First, collect all the switches 1243 1244 Collect_Arguments (The_Args); 1245 Prev_Switch := Dummy_Switch; 1246 Get_Name_String (ALIs.Table (ALI).Sfile); 1247 Switches_To_Check.Set_Last (0); 1248 1249 for J in 1 .. Last_Argument loop 1250 1251 -- Skip -c, -I and -o switches 1252 1253 if Arguments (J) (1) = '-' 1254 and then Arguments (J) (2) /= 'c' 1255 and then Arguments (J) (2) /= 'o' 1256 and then Arguments (J) (2) /= 'I' 1257 then 1258 Normalize_Compiler_Switches 1259 (Arguments (J).all, 1260 Normalized_Switches, 1261 Last_Norm_Switch); 1262 1263 for K in 1 .. Last_Norm_Switch loop 1264 Switches_To_Check.Increment_Last; 1265 Switches_To_Check.Table (Switches_To_Check.Last) := 1266 Normalized_Switches (K); 1267 end loop; 1268 end if; 1269 end loop; 1270 1271 First_Arg := Units.Table (ALIs.Table (ALI).First_Unit).First_Arg; 1272 Last_Arg := Units.Table (ALIs.Table (ALI).First_Unit).Last_Arg; 1273 1274 for J in 1 .. Switches_To_Check.Last loop 1275 1276 -- Comparing switches is delicate because gcc reorders a number 1277 -- of switches, according to lang-specs.h, but gnatmake doesn't 1278 -- have sufficient knowledge to perform the same reordering. 1279 -- Instead, we ignore orders between different "first letter" 1280 -- switches, but keep orders between same switches, e.g -O -O2 1281 -- is different than -O2 -O, but -g -O is equivalent to -O -g. 1282 1283 if Switches_To_Check.Table (J) (2) /= Prev_Switch (2) or else 1284 (Prev_Switch'Length >= 6 and then 1285 Prev_Switch (2 .. 5) = "gnat" and then 1286 Switches_To_Check.Table (J)'Length >= 6 and then 1287 Switches_To_Check.Table (J) (2 .. 5) = "gnat" and then 1288 Prev_Switch (6) /= Switches_To_Check.Table (J) (6)) 1289 then 1290 Prev_Switch := Switches_To_Check.Table (J); 1291 Arg := First_Arg; 1292 end if; 1293 1294 Switch_Found := False; 1295 1296 for K in Arg .. Last_Arg loop 1297 if 1298 Switches_To_Check.Table (J).all = Args.Table (K).all 1299 then 1300 Arg := K + 1; 1301 Switch_Found := True; 1302 exit; 1303 end if; 1304 end loop; 1305 1306 if not Switch_Found then 1307 if Verbose_Mode then 1308 Verbose_Msg (ALIs.Table (ALI).Sfile, 1309 "switch mismatch """ & 1310 Switches_To_Check.Table (J).all & '"'); 1311 end if; 1312 1313 ALI := No_ALI_Id; 1314 return; 1315 end if; 1316 end loop; 1317 1318 Number_Of_Switches := Natural (Last_Arg - First_Arg + 1); 1319 1320 -- Do not count the multilib switches reinstated by the compiler 1321 -- according to the lang-specs.h.settings. 1322 1323 for K in First_Arg .. Last_Arg loop 1324 if Args.Table (K).all = "-mrtp" then 1325 Number_Of_Switches := Number_Of_Switches - 1; 1326 end if; 1327 end loop; 1328 1329 if Switches_To_Check.Last /= Number_Of_Switches then 1330 if Verbose_Mode then 1331 Verbose_Msg (ALIs.Table (ALI).Sfile, 1332 "different number of switches"); 1333 1334 for K in First_Arg .. Last_Arg loop 1335 Write_Str (Args.Table (K).all); 1336 Write_Char (' '); 1337 end loop; 1338 1339 Write_Eol; 1340 1341 for J in 1 .. Switches_To_Check.Last loop 1342 Write_Str (Switches_To_Check.Table (J).all); 1343 Write_Char (' '); 1344 end loop; 1345 1346 Write_Eol; 1347 end if; 1348 1349 ALI := No_ALI_Id; 1350 return; 1351 end if; 1352 end if; 1353 1354 -- Get the source files and their message digests. Note that some 1355 -- sources may be missing if ALI is out-of-date. 1356 1357 Set_Source_Table (ALI); 1358 1359 Modified_Source := Time_Stamp_Mismatch (ALI, Read_Only); 1360 1361 -- To avoid using too much memory when switch -m is used, free the 1362 -- memory allocated for the source file when computing the checksum. 1363 1364 if Minimal_Recompilation then 1365 Sinput.Clear_Source_File_Table; 1366 end if; 1367 1368 if Modified_Source /= No_File then 1369 ALI := No_ALI_Id; 1370 1371 if Verbose_Mode then 1372 Source_Name := Full_Source_Name (Modified_Source); 1373 1374 if Source_Name /= No_File then 1375 Verbose_Msg (Source_Name, "time stamp mismatch"); 1376 else 1377 Verbose_Msg (Modified_Source, "missing"); 1378 end if; 1379 end if; 1380 1381 else 1382 New_Spec := First_New_Spec (ALI); 1383 1384 if New_Spec /= No_File then 1385 ALI := No_ALI_Id; 1386 1387 if Verbose_Mode then 1388 Source_Name := Full_Source_Name (New_Spec); 1389 1390 if Source_Name /= No_File then 1391 Verbose_Msg (Source_Name, "new spec"); 1392 else 1393 Verbose_Msg (New_Spec, "old spec missing"); 1394 end if; 1395 end if; 1396 1397 end if; 1398 end if; 1399 end if; 1400 end Check; 1401 1402 ------------------------ 1403 -- Check_For_S_Switch -- 1404 ------------------------ 1405 1406 procedure Check_For_S_Switch is 1407 begin 1408 -- By default, we generate an object file 1409 1410 Output_Is_Object := True; 1411 1412 for Arg in 1 .. Last_Argument loop 1413 if Arguments (Arg).all = "-S" then 1414 Output_Is_Object := False; 1415 1416 elsif Arguments (Arg).all = "-c" then 1417 Output_Is_Object := True; 1418 end if; 1419 end loop; 1420 end Check_For_S_Switch; 1421 1422 -------------------------- 1423 -- Check_Linker_Options -- 1424 -------------------------- 1425 1426 procedure Check_Linker_Options 1427 (E_Stamp : Time_Stamp_Type; 1428 O_File : out File_Name_Type; 1429 O_Stamp : out Time_Stamp_Type) 1430 is 1431 procedure Check_File (File : File_Name_Type); 1432 -- Update O_File and O_Stamp if the given file is younger than E_Stamp 1433 -- and O_Stamp, or if O_File is No_File and File does not exist. 1434 1435 function Get_Library_File (Name : String) return File_Name_Type; 1436 -- Return the full file name including path of a library based 1437 -- on the name specified with the -l linker option, using the 1438 -- Ada object path. Return No_File if no such file can be found. 1439 1440 type Char_Array is array (Natural) of Character; 1441 type Char_Array_Access is access constant Char_Array; 1442 1443 Template : Char_Array_Access; 1444 pragma Import (C, Template, "__gnat_library_template"); 1445 1446 ---------------- 1447 -- Check_File -- 1448 ---------------- 1449 1450 procedure Check_File (File : File_Name_Type) is 1451 Stamp : Time_Stamp_Type; 1452 Name : File_Name_Type := File; 1453 1454 begin 1455 Get_Name_String (Name); 1456 1457 -- Remove any trailing NUL characters 1458 1459 while Name_Len >= Name_Buffer'First 1460 and then Name_Buffer (Name_Len) = NUL 1461 loop 1462 Name_Len := Name_Len - 1; 1463 end loop; 1464 1465 if Name_Len = 0 then 1466 return; 1467 1468 elsif Name_Buffer (1) = '-' then 1469 1470 -- Do not check if File is a switch other than "-l" 1471 1472 if Name_Buffer (2) /= 'l' then 1473 return; 1474 end if; 1475 1476 -- The argument is a library switch, get actual name. It 1477 -- is necessary to make a copy of the relevant part of 1478 -- Name_Buffer as Get_Library_Name uses Name_Buffer as well. 1479 1480 declare 1481 Base_Name : constant String := Name_Buffer (3 .. Name_Len); 1482 1483 begin 1484 Name := Get_Library_File (Base_Name); 1485 end; 1486 1487 if Name = No_File then 1488 return; 1489 end if; 1490 end if; 1491 1492 Stamp := File_Stamp (Name); 1493 1494 -- Find the youngest object file that is younger than the 1495 -- executable. If no such file exist, record the first object 1496 -- file that is not found. 1497 1498 if (O_Stamp < Stamp and then E_Stamp < Stamp) 1499 or else (O_File = No_File and then Stamp (Stamp'First) = ' ') 1500 then 1501 O_Stamp := Stamp; 1502 O_File := Name; 1503 1504 -- Strip the trailing NUL if present 1505 1506 Get_Name_String (O_File); 1507 1508 if Name_Buffer (Name_Len) = NUL then 1509 Name_Len := Name_Len - 1; 1510 O_File := Name_Find; 1511 end if; 1512 end if; 1513 end Check_File; 1514 1515 ---------------------- 1516 -- Get_Library_Name -- 1517 ---------------------- 1518 1519 -- See comments in a-adaint.c about template syntax 1520 1521 function Get_Library_File (Name : String) return File_Name_Type is 1522 File : File_Name_Type := No_File; 1523 1524 begin 1525 Name_Len := 0; 1526 1527 for Ptr in Template'Range loop 1528 case Template (Ptr) is 1529 when '*' => 1530 Add_Str_To_Name_Buffer (Name); 1531 1532 when ';' => 1533 File := Full_Lib_File_Name (Name_Find); 1534 exit when File /= No_File; 1535 Name_Len := 0; 1536 1537 when NUL => 1538 exit; 1539 1540 when others => 1541 Add_Char_To_Name_Buffer (Template (Ptr)); 1542 end case; 1543 end loop; 1544 1545 -- The for loop exited because the end of the template 1546 -- was reached. File contains the last possible file name 1547 -- for the library. 1548 1549 if File = No_File and then Name_Len > 0 then 1550 File := Full_Lib_File_Name (Name_Find); 1551 end if; 1552 1553 return File; 1554 end Get_Library_File; 1555 1556 -- Start of processing for Check_Linker_Options 1557 1558 begin 1559 O_File := No_File; 1560 O_Stamp := (others => ' '); 1561 1562 -- Process linker options from the ALI files 1563 1564 for Opt in 1 .. Linker_Options.Last loop 1565 Check_File (File_Name_Type (Linker_Options.Table (Opt).Name)); 1566 end loop; 1567 1568 -- Process options given on the command line 1569 1570 for Opt in Linker_Switches.First .. Linker_Switches.Last loop 1571 1572 -- Check if the previous Opt has one of the two switches 1573 -- that take an extra parameter. (See GCC manual.) 1574 1575 if Opt = Linker_Switches.First 1576 or else (Linker_Switches.Table (Opt - 1).all /= "-u" 1577 and then 1578 Linker_Switches.Table (Opt - 1).all /= "-Xlinker" 1579 and then 1580 Linker_Switches.Table (Opt - 1).all /= "-L") 1581 then 1582 Name_Len := 0; 1583 Add_Str_To_Name_Buffer (Linker_Switches.Table (Opt).all); 1584 Check_File (Name_Find); 1585 end if; 1586 end loop; 1587 end Check_Linker_Options; 1588 1589 ----------------------- 1590 -- Collect_Arguments -- 1591 ----------------------- 1592 1593 procedure Collect_Arguments (Args : Argument_List) is 1594 begin 1595 Last_Argument := 0; 1596 Add_Arguments (Args); 1597 1598 -- Set Output_Is_Object, depending if there is a -S switch. 1599 -- If the bind step is not performed, and there is a -S switch, 1600 -- then we will not check for a valid object file. 1601 1602 Check_For_S_Switch; 1603 end Collect_Arguments; 1604 1605 --------------------- 1606 -- Compile_Sources -- 1607 --------------------- 1608 1609 procedure Compile_Sources 1610 (Main_Source : File_Name_Type; 1611 Args : Argument_List; 1612 First_Compiled_File : out File_Name_Type; 1613 Most_Recent_Obj_File : out File_Name_Type; 1614 Most_Recent_Obj_Stamp : out Time_Stamp_Type; 1615 Main_Unit : out Boolean; 1616 Compilation_Failures : out Natural; 1617 Main_Index : Int := 0; 1618 Check_Readonly_Files : Boolean := False; 1619 Do_Not_Execute : Boolean := False; 1620 Force_Compilations : Boolean := False; 1621 Keep_Going : Boolean := False; 1622 In_Place_Mode : Boolean := False; 1623 Initialize_ALI_Data : Boolean := True; 1624 Max_Process : Positive := 1) 1625 is 1626 Mfile : Natural := No_Mapping_File; 1627 Mapping_File_Arg : String_Access; 1628 -- Info on the mapping file 1629 1630 Need_To_Check_Standard_Library : Boolean := 1631 (Check_Readonly_Files or Must_Compile) 1632 and not Unique_Compile; 1633 1634 procedure Add_Process 1635 (Pid : Process_Id; 1636 Sfile : File_Name_Type; 1637 Afile : File_Name_Type; 1638 Uname : Unit_Name_Type; 1639 Full_Lib_File : File_Name_Type; 1640 Lib_File_Attr : File_Attributes; 1641 Mfile : Natural := No_Mapping_File); 1642 -- Adds process Pid to the current list of outstanding compilation 1643 -- processes and record the full name of the source file Sfile that 1644 -- we are compiling, the name of its library file Afile and the 1645 -- name of its unit Uname. If Mfile is not equal to No_Mapping_File, 1646 -- it is the index of the mapping file used during compilation in the 1647 -- array The_Mapping_File_Names. 1648 1649 procedure Await_Compile 1650 (Data : out Compilation_Data; 1651 OK : out Boolean); 1652 -- Awaits that an outstanding compilation process terminates. When it 1653 -- does set Data to the information registered for the corresponding 1654 -- call to Add_Process. Note that this time stamp can be used to check 1655 -- whether the compilation did generate an object file. OK is set to 1656 -- True if the compilation succeeded. Data could be No_Compilation_Data 1657 -- if there was no compilation to wait for. 1658 1659 function Bad_Compilation_Count return Natural; 1660 -- Returns the number of compilation failures 1661 1662 procedure Check_Standard_Library; 1663 -- Check if s-stalib.adb needs to be compiled 1664 1665 procedure Collect_Arguments_And_Compile 1666 (Full_Source_File : File_Name_Type; 1667 Lib_File : File_Name_Type; 1668 Source_Index : Int; 1669 Pid : out Process_Id; 1670 Process_Created : out Boolean); 1671 -- Collect arguments from project file (if any) and compile. If no 1672 -- compilation was attempted, Processed_Created is set to False, and the 1673 -- value of Pid is unknown. 1674 1675 function Compile 1676 (S : File_Name_Type; 1677 L : File_Name_Type; 1678 Source_Index : Int; 1679 Args : Argument_List) return Process_Id; 1680 -- Compiles S using Args. If S is a GNAT predefined source "-gnatpg" is 1681 -- added to Args. Non blocking call. L corresponds to the expected 1682 -- library file name. Process_Id of the process spawned to execute the 1683 -- compilation. 1684 1685 package Good_ALI is new Table.Table ( 1686 Table_Component_Type => ALI_Id, 1687 Table_Index_Type => Natural, 1688 Table_Low_Bound => 1, 1689 Table_Initial => 50, 1690 Table_Increment => 100, 1691 Table_Name => "Make.Good_ALI"); 1692 -- Contains the set of valid ALI files that have not yet been scanned 1693 1694 function Good_ALI_Present return Boolean; 1695 -- Returns True if any ALI file was recorded in the previous set 1696 1697 procedure Get_Mapping_File; 1698 -- Get a mapping file name. If there is one to be reused, reuse it. 1699 -- Otherwise, create a new mapping file. 1700 1701 function Get_Next_Good_ALI return ALI_Id; 1702 -- Returns the next good ALI_Id record 1703 1704 procedure Record_Failure 1705 (File : File_Name_Type; 1706 Unit : Unit_Name_Type; 1707 Found : Boolean := True); 1708 -- Records in the previous table that the compilation for File failed. 1709 -- If Found is False then the compilation of File failed because we 1710 -- could not find it. Records also Unit when possible. 1711 1712 procedure Record_Good_ALI (A : ALI_Id); 1713 -- Records in the previous set the Id of an ALI file 1714 1715 function Must_Exit_Because_Of_Error return Boolean; 1716 -- Return True if there were errors and the user decided to exit in such 1717 -- a case. This waits for any outstanding compilation. 1718 1719 function Start_Compile_If_Possible (Args : Argument_List) return Boolean; 1720 -- Check if there is more work that we can do (i.e. the Queue is non 1721 -- empty). If there is, do it only if we have not yet used up all the 1722 -- available processes. 1723 -- Returns True if we should exit the main loop 1724 1725 procedure Wait_For_Available_Slot; 1726 -- Check if we should wait for a compilation to finish. This is the case 1727 -- if all the available processes are busy compiling sources or there is 1728 -- nothing else to do (that is the Q is empty and there are no good ALIs 1729 -- to process). 1730 1731 procedure Fill_Queue_From_ALI_Files; 1732 -- Check if we recorded good ALI files. If yes process them now in the 1733 -- order in which they have been recorded. There are two occasions in 1734 -- which we record good ali files. The first is in phase 1 when, after 1735 -- scanning an existing ALI file we realize it is up-to-date, the second 1736 -- instance is after a successful compilation. 1737 1738 ----------------- 1739 -- Add_Process -- 1740 ----------------- 1741 1742 procedure Add_Process 1743 (Pid : Process_Id; 1744 Sfile : File_Name_Type; 1745 Afile : File_Name_Type; 1746 Uname : Unit_Name_Type; 1747 Full_Lib_File : File_Name_Type; 1748 Lib_File_Attr : File_Attributes; 1749 Mfile : Natural := No_Mapping_File) 1750 is 1751 OC1 : constant Positive := Outstanding_Compiles + 1; 1752 1753 begin 1754 pragma Assert (OC1 <= Max_Process); 1755 pragma Assert (Pid /= Invalid_Pid); 1756 1757 Running_Compile (OC1) := 1758 (Pid => Pid, 1759 Full_Source_File => Sfile, 1760 Lib_File => Afile, 1761 Full_Lib_File => Full_Lib_File, 1762 Lib_File_Attr => Lib_File_Attr, 1763 Source_Unit => Uname, 1764 Mapping_File => Mfile); 1765 1766 Outstanding_Compiles := OC1; 1767 1768 end Add_Process; 1769 1770 -------------------- 1771 -- Await_Compile -- 1772 ------------------- 1773 1774 procedure Await_Compile 1775 (Data : out Compilation_Data; 1776 OK : out Boolean) 1777 is 1778 Pid : Process_Id; 1779 1780 begin 1781 pragma Assert (Outstanding_Compiles > 0); 1782 1783 Data := No_Compilation_Data; 1784 OK := False; 1785 1786 Wait_Process (Pid, OK); 1787 1788 if Pid = Invalid_Pid then 1789 return; 1790 end if; 1791 1792 -- Look into the running compilation processes for this PID 1793 1794 for J in Running_Compile'First .. Outstanding_Compiles loop 1795 if Pid = Running_Compile (J).Pid then 1796 Data := Running_Compile (J); 1797 -- If a mapping file was used by this compilation, get its file 1798 -- name for reuse by a subsequent compilation. 1799 1800 if Running_Compile (J).Mapping_File /= No_Mapping_File then 1801 The_Mapping_Files.Last_Free_Indexes := 1802 The_Mapping_Files.Last_Free_Indexes + 1; 1803 The_Mapping_Files.Free_Mapping_File_Indexes 1804 (The_Mapping_Files.Last_Free_Indexes) := 1805 Running_Compile (J).Mapping_File; 1806 end if; 1807 1808 -- To actually remove this Pid and related info from 1809 -- Running_Compile replace its entry with the last valid 1810 -- entry in Running_Compile. 1811 1812 if J = Outstanding_Compiles then 1813 null; 1814 else 1815 Running_Compile (J) := 1816 Running_Compile (Outstanding_Compiles); 1817 end if; 1818 1819 Outstanding_Compiles := Outstanding_Compiles - 1; 1820 exit; 1821 end if; 1822 end loop; 1823 1824 -- If the PID was not found, return with OK set to False 1825 1826 if Data = No_Compilation_Data then 1827 OK := False; 1828 end if; 1829 end Await_Compile; 1830 1831 --------------------------- 1832 -- Bad_Compilation_Count -- 1833 --------------------------- 1834 1835 function Bad_Compilation_Count return Natural is 1836 begin 1837 return Bad_Compilation.Last - Bad_Compilation.First + 1; 1838 end Bad_Compilation_Count; 1839 1840 ---------------------------- 1841 -- Check_Standard_Library -- 1842 ---------------------------- 1843 1844 procedure Check_Standard_Library is 1845 begin 1846 Need_To_Check_Standard_Library := False; 1847 Name_Len := 0; 1848 1849 if not Targparm.Suppress_Standard_Library_On_Target then 1850 Add_Str_To_Name_Buffer (Standard_Library_Package_Body_Name); 1851 else 1852 Add_Str_To_Name_Buffer (System_Package_Spec_Name); 1853 end if; 1854 1855 declare 1856 Add_It : Boolean := True; 1857 Sfile : File_Name_Type; 1858 1859 begin 1860 Sfile := Name_Enter; 1861 1862 -- If we have a special runtime, we add the standard library only 1863 -- if we can find it. 1864 1865 if RTS_Switch then 1866 Add_It := Full_Source_Name (Sfile) /= No_File; 1867 end if; 1868 1869 if Add_It then 1870 if not Queue.Insert 1871 ((File => Sfile, 1872 Unit => No_Unit_Name, 1873 Index => 0)) 1874 then 1875 if Is_In_Obsoleted (Sfile) then 1876 Executable_Obsolete := True; 1877 end if; 1878 end if; 1879 end if; 1880 end; 1881 end Check_Standard_Library; 1882 1883 ----------------------------------- 1884 -- Collect_Arguments_And_Compile -- 1885 ----------------------------------- 1886 1887 procedure Collect_Arguments_And_Compile 1888 (Full_Source_File : File_Name_Type; 1889 Lib_File : File_Name_Type; 1890 Source_Index : Int; 1891 Pid : out Process_Id; 1892 Process_Created : out Boolean) is 1893 begin 1894 Process_Created := False; 1895 1896 -- If we use mapping file (-P or -C switches), then get one 1897 1898 if Create_Mapping_File then 1899 Get_Mapping_File; 1900 end if; 1901 1902 Pid := 1903 Compile 1904 (S => Full_Source_File, 1905 L => Lib_File, 1906 Source_Index => Source_Index, 1907 Args => Arguments (1 .. Last_Argument)); 1908 Process_Created := True; 1909 end Collect_Arguments_And_Compile; 1910 1911 ------------- 1912 -- Compile -- 1913 ------------- 1914 1915 function Compile 1916 (S : File_Name_Type; 1917 L : File_Name_Type; 1918 Source_Index : Int; 1919 Args : Argument_List) return Process_Id 1920 is 1921 Comp_Args : Argument_List (Args'First .. Args'Last + 10); 1922 Comp_Next : Integer := Args'First; 1923 Comp_Last : Integer; 1924 Arg_Index : Integer; 1925 1926 function Ada_File_Name (Name : File_Name_Type) return Boolean; 1927 -- Returns True if Name is the name of an ada source file 1928 -- (i.e. suffix is .ads or .adb) 1929 1930 ------------------- 1931 -- Ada_File_Name -- 1932 ------------------- 1933 1934 function Ada_File_Name (Name : File_Name_Type) return Boolean is 1935 begin 1936 Get_Name_String (Name); 1937 return 1938 Name_Len > 4 1939 and then Name_Buffer (Name_Len - 3 .. Name_Len - 1) = ".ad" 1940 and then (Name_Buffer (Name_Len) = 'b' 1941 or else 1942 Name_Buffer (Name_Len) = 's'); 1943 end Ada_File_Name; 1944 1945 -- Start of processing for Compile 1946 1947 begin 1948 Enter_Into_Obsoleted (S); 1949 1950 -- By default, Syntax_Only is False 1951 1952 Syntax_Only := False; 1953 1954 for J in Args'Range loop 1955 if Args (J).all = "-gnats" then 1956 1957 -- If we compile with -gnats, the bind step and the link step 1958 -- are inhibited. Also, we set Syntax_Only to True, so that 1959 -- we don't fail when we don't find the ALI file, after 1960 -- compilation. 1961 1962 Do_Bind_Step := False; 1963 Do_Link_Step := False; 1964 Syntax_Only := True; 1965 1966 elsif Args (J).all = "-gnatc" then 1967 1968 -- If we compile with -gnatc, the bind step and the link step 1969 -- are inhibited. We set Syntax_Only to False for the case when 1970 -- -gnats was previously specified. 1971 1972 Do_Bind_Step := False; 1973 Do_Link_Step := False; 1974 Syntax_Only := False; 1975 end if; 1976 end loop; 1977 1978 Comp_Args (Comp_Next) := new String'("-gnatea"); 1979 Comp_Next := Comp_Next + 1; 1980 1981 Comp_Args (Comp_Next) := Comp_Flag; 1982 Comp_Next := Comp_Next + 1; 1983 1984 -- Optimize the simple case where the gcc command line looks like 1985 -- gcc -c -I. ... -I- file.adb 1986 -- into 1987 -- gcc -c ... file.adb 1988 1989 if Args (Args'First).all = "-I" & Normalized_CWD 1990 and then Args (Args'Last).all = "-I-" 1991 and then S = Strip_Directory (S) 1992 then 1993 Comp_Last := Comp_Next + Args'Length - 3; 1994 Arg_Index := Args'First + 1; 1995 1996 else 1997 Comp_Last := Comp_Next + Args'Length - 1; 1998 Arg_Index := Args'First; 1999 end if; 2000 2001 -- Make a deep copy of the arguments, because Normalize_Arguments 2002 -- may deallocate some arguments. Also strip target specific -mxxx 2003 -- switches in CodePeer mode. 2004 2005 declare 2006 Index : Natural; 2007 Last : constant Natural := Comp_Last; 2008 2009 begin 2010 Index := Comp_Next; 2011 for J in Comp_Next .. Last loop 2012 declare 2013 Str : String renames Args (Arg_Index).all; 2014 begin 2015 if CodePeer_Mode 2016 and then Str'Length > 2 2017 and then Str (Str'First .. Str'First + 1) = "-m" 2018 then 2019 Comp_Last := Comp_Last - 1; 2020 else 2021 Comp_Args (Index) := new String'(Str); 2022 Index := Index + 1; 2023 end if; 2024 end; 2025 2026 Arg_Index := Arg_Index + 1; 2027 end loop; 2028 end; 2029 2030 -- Set -gnatpg for predefined files (for this purpose the renamings 2031 -- such as Text_IO do not count as predefined). Note that we strip 2032 -- the directory name from the source file name because the call to 2033 -- Fname.Is_Predefined_File_Name cannot deal with directory prefixes. 2034 2035 declare 2036 Fname : constant File_Name_Type := Strip_Directory (S); 2037 2038 begin 2039 if Is_Predefined_File_Name 2040 (Fname, Renamings_Included => False) 2041 then 2042 if Check_Readonly_Files or else Must_Compile then 2043 Comp_Args (Comp_Args'First + 2 .. Comp_Last + 1) := 2044 Comp_Args (Comp_Args'First + 1 .. Comp_Last); 2045 Comp_Last := Comp_Last + 1; 2046 Comp_Args (Comp_Args'First + 1) := GNAT_Flag; 2047 2048 else 2049 Make_Failed 2050 ("not allowed to compile """ & 2051 Get_Name_String (Fname) & 2052 """; use -a switch, or use the compiler directly with " 2053 & "the ""-gnatg"" switch"); 2054 end if; 2055 end if; 2056 end; 2057 2058 -- Now check if the file name has one of the suffixes familiar to 2059 -- the gcc driver. If this is not the case then add the ada flag 2060 -- "-x ada". 2061 -- Append systematically "-x adascil" in CodePeer mode instead, to 2062 -- force the use of gnat1scil instead of gnat1. 2063 2064 if CodePeer_Mode then 2065 Comp_Last := Comp_Last + 1; 2066 Comp_Args (Comp_Last) := Ada_Flag_1; 2067 Comp_Last := Comp_Last + 1; 2068 Comp_Args (Comp_Last) := AdaSCIL_Flag; 2069 2070 elsif not Ada_File_Name (S) then 2071 Comp_Last := Comp_Last + 1; 2072 Comp_Args (Comp_Last) := Ada_Flag_1; 2073 Comp_Last := Comp_Last + 1; 2074 Comp_Args (Comp_Last) := Ada_Flag_2; 2075 end if; 2076 2077 if Source_Index /= 0 then 2078 declare 2079 Num : constant String := Source_Index'Img; 2080 begin 2081 Comp_Last := Comp_Last + 1; 2082 Comp_Args (Comp_Last) := 2083 new String'("-gnateI" & Num (Num'First + 1 .. Num'Last)); 2084 end; 2085 end if; 2086 2087 if Source_Index /= 0 2088 or else L /= Strip_Directory (L) 2089 or else Object_Directory_Path /= null 2090 then 2091 -- Build -o argument 2092 2093 Get_Name_String (L); 2094 2095 for J in reverse 1 .. Name_Len loop 2096 if Name_Buffer (J) = '.' then 2097 Name_Len := J + Object_Suffix'Length - 1; 2098 Name_Buffer (J .. Name_Len) := Object_Suffix; 2099 exit; 2100 end if; 2101 end loop; 2102 2103 Comp_Last := Comp_Last + 1; 2104 Comp_Args (Comp_Last) := Output_Flag; 2105 Comp_Last := Comp_Last + 1; 2106 2107 -- If an object directory was specified, prepend the object file 2108 -- name with this object directory. 2109 2110 if Object_Directory_Path /= null then 2111 Comp_Args (Comp_Last) := 2112 new String'(Object_Directory_Path.all & 2113 Name_Buffer (1 .. Name_Len)); 2114 2115 else 2116 Comp_Args (Comp_Last) := 2117 new String'(Name_Buffer (1 .. Name_Len)); 2118 end if; 2119 end if; 2120 2121 if Create_Mapping_File and then Mapping_File_Arg /= null then 2122 Comp_Last := Comp_Last + 1; 2123 Comp_Args (Comp_Last) := new String'(Mapping_File_Arg.all); 2124 end if; 2125 2126 Get_Name_String (S); 2127 2128 Comp_Last := Comp_Last + 1; 2129 Comp_Args (Comp_Last) := new String'(Name_Buffer (1 .. Name_Len)); 2130 2131 -- Change to object directory of the project file, if necessary 2132 2133 GNAT.OS_Lib.Normalize_Arguments (Comp_Args (Args'First .. Comp_Last)); 2134 2135 Comp_Last := Comp_Last + 1; 2136 Comp_Args (Comp_Last) := new String'("-gnatez"); 2137 2138 Display (Gcc.all, Comp_Args (Args'First .. Comp_Last)); 2139 2140 if Gcc_Path = null then 2141 Make_Failed ("error, unable to locate " & Gcc.all); 2142 end if; 2143 2144 return 2145 GNAT.OS_Lib.Non_Blocking_Spawn 2146 (Gcc_Path.all, Comp_Args (Args'First .. Comp_Last)); 2147 end Compile; 2148 2149 ------------------------------- 2150 -- Fill_Queue_From_ALI_Files -- 2151 ------------------------------- 2152 2153 procedure Fill_Queue_From_ALI_Files is 2154 ALI : ALI_Id; 2155 Source_Index : Int; 2156 Sfile : File_Name_Type; 2157 2158 begin 2159 while Good_ALI_Present loop 2160 ALI := Get_Next_Good_ALI; 2161 Source_Index := Unit_Index_Of (ALIs.Table (ALI).Afile); 2162 2163 -- If we are processing the library file corresponding to the 2164 -- main source file check if this source can be a main unit. 2165 2166 if ALIs.Table (ALI).Sfile = Main_Source 2167 and then Source_Index = Main_Index 2168 then 2169 Main_Unit := ALIs.Table (ALI).Main_Program /= None; 2170 end if; 2171 2172 -- The following adds the standard library (s-stalib) to the list 2173 -- of files to be handled by gnatmake: this file and any files it 2174 -- depends on are always included in every bind, even if they are 2175 -- not in the explicit dependency list. Of course, it is not added 2176 -- if Suppress_Standard_Library is True. 2177 2178 -- However, to avoid annoying output about s-stalib.ali being read 2179 -- only, when "-v" is used, we add the standard library only when 2180 -- "-a" is used. 2181 2182 if Need_To_Check_Standard_Library then 2183 Check_Standard_Library; 2184 end if; 2185 2186 -- Now insert in the Q the unmarked source files (i.e. those which 2187 -- have never been inserted in the Q and hence never considered). 2188 -- Only do that if Unique_Compile is False. 2189 2190 if not Unique_Compile then 2191 for J in 2192 ALIs.Table (ALI).First_Unit .. ALIs.Table (ALI).Last_Unit 2193 loop 2194 for K in 2195 Units.Table (J).First_With .. Units.Table (J).Last_With 2196 loop 2197 Sfile := Withs.Table (K).Sfile; 2198 2199 Dependencies.Append ((ALIs.Table (ALI).Sfile, Sfile)); 2200 2201 if Is_In_Obsoleted (Sfile) then 2202 Executable_Obsolete := True; 2203 end if; 2204 2205 if Sfile = No_File then 2206 Debug_Msg ("Skipping generic:", Withs.Table (K).Uname); 2207 2208 else 2209 Source_Index := Unit_Index_Of (Withs.Table (K).Afile); 2210 2211 if not (Check_Readonly_Files or Must_Compile) 2212 and then Is_Internal_File_Name (Sfile, False) 2213 then 2214 Debug_Msg ("Skipping internal file:", Sfile); 2215 2216 else 2217 Queue.Insert 2218 ((File => Sfile, 2219 Unit => Withs.Table (K).Uname, 2220 Index => Source_Index)); 2221 end if; 2222 end if; 2223 end loop; 2224 end loop; 2225 end if; 2226 end loop; 2227 end Fill_Queue_From_ALI_Files; 2228 2229 ---------------------- 2230 -- Get_Mapping_File -- 2231 ---------------------- 2232 2233 procedure Get_Mapping_File is 2234 begin 2235 -- If there is a mapping file ready to be reused, reuse it 2236 2237 if The_Mapping_Files.Last_Free_Indexes > 0 then 2238 Mfile := 2239 The_Mapping_Files.Free_Mapping_File_Indexes 2240 (The_Mapping_Files.Last_Free_Indexes); 2241 The_Mapping_Files.Last_Free_Indexes := 2242 The_Mapping_Files.Last_Free_Indexes - 1; 2243 2244 -- Otherwise, create and initialize a new one 2245 2246 else 2247 Init_Mapping_File (File_Index => Mfile); 2248 end if; 2249 2250 -- Put the name in the mapping file argument for the invocation 2251 -- of the compiler. 2252 2253 Free (Mapping_File_Arg); 2254 Mapping_File_Arg := 2255 new String' 2256 ("-gnatem=" & 2257 Get_Name_String 2258 (The_Mapping_Files.Mapping_File_Names (Mfile))); 2259 end Get_Mapping_File; 2260 2261 ----------------------- 2262 -- Get_Next_Good_ALI -- 2263 ----------------------- 2264 2265 function Get_Next_Good_ALI return ALI_Id is 2266 ALIP : ALI_Id; 2267 2268 begin 2269 pragma Assert (Good_ALI_Present); 2270 ALIP := Good_ALI.Table (Good_ALI.Last); 2271 Good_ALI.Decrement_Last; 2272 return ALIP; 2273 end Get_Next_Good_ALI; 2274 2275 ---------------------- 2276 -- Good_ALI_Present -- 2277 ---------------------- 2278 2279 function Good_ALI_Present return Boolean is 2280 begin 2281 return Good_ALI.First <= Good_ALI.Last; 2282 end Good_ALI_Present; 2283 2284 -------------------------------- 2285 -- Must_Exit_Because_Of_Error -- 2286 -------------------------------- 2287 2288 function Must_Exit_Because_Of_Error return Boolean is 2289 Data : Compilation_Data; 2290 Success : Boolean; 2291 2292 begin 2293 if Bad_Compilation_Count > 0 and then not Keep_Going then 2294 while Outstanding_Compiles > 0 loop 2295 Await_Compile (Data, Success); 2296 2297 if not Success then 2298 Record_Failure (Data.Full_Source_File, Data.Source_Unit); 2299 end if; 2300 end loop; 2301 2302 return True; 2303 end if; 2304 2305 return False; 2306 end Must_Exit_Because_Of_Error; 2307 2308 -------------------- 2309 -- Record_Failure -- 2310 -------------------- 2311 2312 procedure Record_Failure 2313 (File : File_Name_Type; 2314 Unit : Unit_Name_Type; 2315 Found : Boolean := True) 2316 is 2317 begin 2318 Bad_Compilation.Increment_Last; 2319 Bad_Compilation.Table (Bad_Compilation.Last) := (File, Unit, Found); 2320 end Record_Failure; 2321 2322 --------------------- 2323 -- Record_Good_ALI -- 2324 --------------------- 2325 2326 procedure Record_Good_ALI (A : ALI_Id) is 2327 begin 2328 Good_ALI.Increment_Last; 2329 Good_ALI.Table (Good_ALI.Last) := A; 2330 end Record_Good_ALI; 2331 2332 ------------------------------- 2333 -- Start_Compile_If_Possible -- 2334 ------------------------------- 2335 2336 function Start_Compile_If_Possible 2337 (Args : Argument_List) return Boolean 2338 is 2339 In_Lib_Dir : Boolean; 2340 Need_To_Compile : Boolean; 2341 Pid : Process_Id := Invalid_Pid; 2342 Process_Created : Boolean; 2343 2344 Source : Queue.Source_Info; 2345 Full_Source_File : File_Name_Type := No_File; 2346 Source_File_Attr : aliased File_Attributes; 2347 -- The full name of the source file and its attributes (size, ...) 2348 2349 Lib_File : File_Name_Type; 2350 Full_Lib_File : File_Name_Type := No_File; 2351 Lib_File_Attr : aliased File_Attributes; 2352 Read_Only : Boolean := False; 2353 ALI : ALI_Id := No_ALI_Id; 2354 -- The ALI file and its attributes (size, stamp, ...) 2355 2356 Obj_File : File_Name_Type := No_File; 2357 Obj_Stamp : Time_Stamp_Type; 2358 -- The object file 2359 2360 Found : Boolean; 2361 2362 begin 2363 if not Queue.Is_Empty and then 2364 Outstanding_Compiles < Max_Process 2365 then 2366 Queue.Extract (Found, Source); 2367 2368 Osint.Full_Source_Name 2369 (Source.File, 2370 Full_File => Full_Source_File, 2371 Attr => Source_File_Attr'Access); 2372 2373 Lib_File := Osint.Lib_File_Name (Source.File, Source.Index); 2374 2375 Osint.Full_Lib_File_Name 2376 (Lib_File, 2377 Lib_File => Full_Lib_File, 2378 Attr => Lib_File_Attr); 2379 2380 -- If source has already been compiled, executable is obsolete 2381 2382 if Is_In_Obsoleted (Source.File) then 2383 Executable_Obsolete := True; 2384 end if; 2385 2386 In_Lib_Dir := Full_Lib_File /= No_File 2387 and then In_Ada_Lib_Dir (Full_Lib_File); 2388 2389 -- Since the following requires a system call, we precompute it 2390 -- when needed. 2391 2392 if not In_Lib_Dir then 2393 if Full_Lib_File /= No_File 2394 and then not (Check_Readonly_Files or else Must_Compile) 2395 then 2396 Get_Name_String (Full_Lib_File); 2397 Name_Buffer (Name_Len + 1) := ASCII.NUL; 2398 Read_Only := not Is_Writable_File 2399 (Name_Buffer'Address, Lib_File_Attr'Access); 2400 else 2401 Read_Only := False; 2402 end if; 2403 end if; 2404 2405 -- If the library file is an Ada library skip it 2406 2407 if In_Lib_Dir then 2408 Verbose_Msg 2409 (Lib_File, 2410 "is in an Ada library", 2411 Prefix => " ", 2412 Minimum_Verbosity => Opt.High); 2413 2414 -- If the library file is a read-only library skip it, but only 2415 -- if, when using project files, this library file is in the 2416 -- right object directory (a read-only ALI file in the object 2417 -- directory of a project being extended must not be skipped). 2418 2419 elsif Read_Only then 2420 Verbose_Msg 2421 (Lib_File, 2422 "is a read-only library", 2423 Prefix => " ", 2424 Minimum_Verbosity => Opt.High); 2425 2426 -- The source file that we are checking cannot be located 2427 2428 elsif Full_Source_File = No_File then 2429 Record_Failure (Source.File, Source.Unit, False); 2430 2431 -- Source and library files can be located but are internal 2432 -- files. 2433 2434 elsif not (Check_Readonly_Files or else Must_Compile) 2435 and then Full_Lib_File /= No_File 2436 and then Is_Internal_File_Name (Source.File, False) 2437 then 2438 if Force_Compilations then 2439 Fail 2440 ("not allowed to compile """ & 2441 Get_Name_String (Source.File) & 2442 """; use -a switch, or use the compiler directly with " 2443 & "the ""-gnatg"" switch"); 2444 end if; 2445 2446 Verbose_Msg 2447 (Lib_File, 2448 "is an internal library", 2449 Prefix => " ", 2450 Minimum_Verbosity => Opt.High); 2451 2452 -- The source file that we are checking can be located 2453 2454 else 2455 Collect_Arguments (Args); 2456 2457 -- Don't waste any time if we have to recompile anyway 2458 2459 Obj_Stamp := Empty_Time_Stamp; 2460 Need_To_Compile := Force_Compilations; 2461 2462 if not Force_Compilations then 2463 Check (Source_File => Source.File, 2464 The_Args => Args, 2465 Lib_File => Lib_File, 2466 Full_Lib_File => Full_Lib_File, 2467 Lib_File_Attr => Lib_File_Attr'Access, 2468 Read_Only => Read_Only, 2469 ALI => ALI, 2470 O_File => Obj_File, 2471 O_Stamp => Obj_Stamp); 2472 Need_To_Compile := (ALI = No_ALI_Id); 2473 end if; 2474 2475 if not Need_To_Compile then 2476 2477 -- The ALI file is up-to-date; record its Id 2478 2479 Record_Good_ALI (ALI); 2480 2481 -- Record the time stamp of the most recent object 2482 -- file as long as no (re)compilations are needed. 2483 2484 if First_Compiled_File = No_File 2485 and then (Most_Recent_Obj_File = No_File 2486 or else Obj_Stamp > Most_Recent_Obj_Stamp) 2487 then 2488 Most_Recent_Obj_File := Obj_File; 2489 Most_Recent_Obj_Stamp := Obj_Stamp; 2490 end if; 2491 2492 else 2493 -- Is this the first file we have to compile? 2494 2495 if First_Compiled_File = No_File then 2496 First_Compiled_File := Full_Source_File; 2497 Most_Recent_Obj_File := No_File; 2498 2499 if Do_Not_Execute then 2500 2501 -- Exit the main loop 2502 2503 return True; 2504 end if; 2505 end if; 2506 2507 -- Compute where the ALI file must be generated in 2508 -- In_Place_Mode (this does not require to know the 2509 -- location of the object directory). 2510 2511 if In_Place_Mode then 2512 if Full_Lib_File = No_File then 2513 2514 -- If the library file was not found, then save 2515 -- the library file near the source file. 2516 2517 Lib_File := 2518 Osint.Lib_File_Name 2519 (Full_Source_File, Source.Index); 2520 Full_Lib_File := Lib_File; 2521 2522 else 2523 -- If the library file was found, then save the 2524 -- library file in the same place. 2525 2526 Lib_File := Full_Lib_File; 2527 end if; 2528 end if; 2529 2530 -- Start the compilation and record it. We can do this 2531 -- because there is at least one free process. This might 2532 -- change the current directory. 2533 2534 Collect_Arguments_And_Compile 2535 (Full_Source_File => Full_Source_File, 2536 Lib_File => Lib_File, 2537 Source_Index => Source.Index, 2538 Pid => Pid, 2539 Process_Created => Process_Created); 2540 2541 -- Compute where the ALI file will be generated (for 2542 -- cases that might require to know the current 2543 -- directory). The current directory might be changed 2544 -- when compiling other files so we cannot rely on it 2545 -- being the same to find the resulting ALI file. 2546 2547 if not In_Place_Mode then 2548 2549 -- Compute the expected location of the ALI file. This 2550 -- can be from several places: 2551 -- -i => in place mode. In such a case, 2552 -- Full_Lib_File has already been set above 2553 -- -D => if specified 2554 -- or defaults in current dir 2555 -- We could simply use a call similar to 2556 -- Osint.Full_Lib_File_Name (Lib_File) 2557 -- but that involves system calls and is thus slower 2558 2559 if Object_Directory_Path /= null then 2560 Name_Len := 0; 2561 Add_Str_To_Name_Buffer (Object_Directory_Path.all); 2562 Add_Str_To_Name_Buffer (Get_Name_String (Lib_File)); 2563 Full_Lib_File := Name_Find; 2564 2565 else 2566 Full_Lib_File := Lib_File; 2567 end if; 2568 2569 end if; 2570 2571 Lib_File_Attr := Unknown_Attributes; 2572 2573 -- Make sure we could successfully start the compilation 2574 2575 if Process_Created then 2576 if Pid = Invalid_Pid then 2577 Record_Failure (Full_Source_File, Source.Unit); 2578 else 2579 Add_Process 2580 (Pid => Pid, 2581 Sfile => Full_Source_File, 2582 Afile => Lib_File, 2583 Uname => Source.Unit, 2584 Mfile => Mfile, 2585 Full_Lib_File => Full_Lib_File, 2586 Lib_File_Attr => Lib_File_Attr); 2587 end if; 2588 end if; 2589 end if; 2590 end if; 2591 end if; 2592 return False; 2593 end Start_Compile_If_Possible; 2594 2595 ----------------------------- 2596 -- Wait_For_Available_Slot -- 2597 ----------------------------- 2598 2599 procedure Wait_For_Available_Slot is 2600 Compilation_OK : Boolean; 2601 Text : Text_Buffer_Ptr; 2602 ALI : ALI_Id; 2603 Data : Compilation_Data; 2604 2605 begin 2606 if Outstanding_Compiles = Max_Process 2607 or else (Queue.Is_Empty 2608 and then not Good_ALI_Present 2609 and then Outstanding_Compiles > 0) 2610 then 2611 Await_Compile (Data, Compilation_OK); 2612 2613 if not Compilation_OK then 2614 Record_Failure (Data.Full_Source_File, Data.Source_Unit); 2615 end if; 2616 2617 if Compilation_OK or else Keep_Going then 2618 2619 -- Re-read the updated library file 2620 2621 declare 2622 Saved_Object_Consistency : constant Boolean := 2623 Check_Object_Consistency; 2624 2625 begin 2626 -- If compilation was not OK, or if output is not an object 2627 -- file and we don't do the bind step, don't check for 2628 -- object consistency. 2629 2630 Check_Object_Consistency := 2631 Check_Object_Consistency 2632 and Compilation_OK 2633 and (Output_Is_Object or Do_Bind_Step); 2634 2635 Text := 2636 Read_Library_Info_From_Full 2637 (Data.Full_Lib_File, Data.Lib_File_Attr'Access); 2638 2639 -- Restore Check_Object_Consistency to its initial value 2640 2641 Check_Object_Consistency := Saved_Object_Consistency; 2642 end; 2643 2644 -- If an ALI file was generated by this compilation, scan the 2645 -- ALI file and record it. 2646 2647 -- If the scan fails, a previous ali file is inconsistent with 2648 -- the unit just compiled. 2649 2650 if Text /= null then 2651 ALI := 2652 Scan_ALI 2653 (Data.Lib_File, Text, Ignore_ED => False, Err => True); 2654 2655 if ALI = No_ALI_Id then 2656 2657 -- Record a failure only if not already done 2658 2659 if Compilation_OK then 2660 Inform 2661 (Data.Lib_File, 2662 "incompatible ALI file, please recompile"); 2663 Record_Failure 2664 (Data.Full_Source_File, Data.Source_Unit); 2665 end if; 2666 2667 else 2668 Record_Good_ALI (ALI); 2669 end if; 2670 2671 Free (Text); 2672 2673 -- If we could not read the ALI file that was just generated 2674 -- then there could be a problem reading either the ALI or the 2675 -- corresponding object file (if Check_Object_Consistency is 2676 -- set Read_Library_Info checks that the time stamp of the 2677 -- object file is more recent than that of the ALI). However, 2678 -- we record a failure only if not already done. 2679 2680 else 2681 if Compilation_OK and not Syntax_Only then 2682 Inform 2683 (Data.Lib_File, 2684 "WARNING: ALI or object file not found after compile"); 2685 2686 if not Is_Regular_File 2687 (Get_Name_String (Name_Id (Data.Full_Lib_File))) 2688 then 2689 Inform (Data.Full_Lib_File, "not found"); 2690 end if; 2691 2692 Record_Failure (Data.Full_Source_File, Data.Source_Unit); 2693 end if; 2694 end if; 2695 end if; 2696 end if; 2697 end Wait_For_Available_Slot; 2698 2699 -- Start of processing for Compile_Sources 2700 2701 begin 2702 pragma Assert (Args'First = 1); 2703 2704 Outstanding_Compiles := 0; 2705 Running_Compile := new Comp_Data_Arr (1 .. Max_Process); 2706 2707 -- Package and Queue initializations 2708 2709 Good_ALI.Init; 2710 2711 if Initialize_ALI_Data then 2712 Initialize_ALI; 2713 Initialize_ALI_Source; 2714 end if; 2715 2716 -- The following two flags affect the behavior of ALI.Set_Source_Table. 2717 -- We set Check_Source_Files to True to ensure that source file time 2718 -- stamps are checked, and we set All_Sources to False to avoid checking 2719 -- the presence of the source files listed in the source dependency 2720 -- section of an ali file (which would be a mistake since the ali file 2721 -- may be obsolete). 2722 2723 Check_Source_Files := True; 2724 All_Sources := False; 2725 2726 Queue.Insert 2727 ((File => Main_Source, 2728 Unit => No_Unit_Name, 2729 Index => Main_Index)); 2730 2731 First_Compiled_File := No_File; 2732 Most_Recent_Obj_File := No_File; 2733 Most_Recent_Obj_Stamp := Empty_Time_Stamp; 2734 Main_Unit := False; 2735 2736 -- Keep looping until there is no more work to do (the Q is empty) 2737 -- and all the outstanding compilations have terminated. 2738 2739 Make_Loop : 2740 while not Queue.Is_Empty or else Outstanding_Compiles > 0 loop 2741 exit Make_Loop when Must_Exit_Because_Of_Error; 2742 exit Make_Loop when Start_Compile_If_Possible (Args); 2743 2744 Wait_For_Available_Slot; 2745 2746 -- ??? Should be done as soon as we add a Good_ALI, wouldn't it avoid 2747 -- the need for a list of good ALI? 2748 2749 Fill_Queue_From_ALI_Files; 2750 2751 if Display_Compilation_Progress then 2752 Write_Str ("completed "); 2753 Write_Int (Int (Queue.Processed)); 2754 Write_Str (" out of "); 2755 Write_Int (Int (Queue.Size)); 2756 Write_Str (" ("); 2757 Write_Int (Int ((Queue.Processed * 100) / Queue.Size)); 2758 Write_Str ("%)..."); 2759 Write_Eol; 2760 end if; 2761 end loop Make_Loop; 2762 2763 Compilation_Failures := Bad_Compilation_Count; 2764 2765 -- Compilation is finished 2766 2767 end Compile_Sources; 2768 2769 --------------- 2770 -- Debug_Msg -- 2771 --------------- 2772 2773 procedure Debug_Msg (S : String; N : Name_Id) is 2774 begin 2775 if Debug.Debug_Flag_W then 2776 Write_Str (" ... "); 2777 Write_Str (S); 2778 Write_Str (" "); 2779 Write_Name (N); 2780 Write_Eol; 2781 end if; 2782 end Debug_Msg; 2783 2784 procedure Debug_Msg (S : String; N : File_Name_Type) is 2785 begin 2786 Debug_Msg (S, Name_Id (N)); 2787 end Debug_Msg; 2788 2789 procedure Debug_Msg (S : String; N : Unit_Name_Type) is 2790 begin 2791 Debug_Msg (S, Name_Id (N)); 2792 end Debug_Msg; 2793 2794 ------------- 2795 -- Display -- 2796 ------------- 2797 2798 procedure Display (Program : String; Args : Argument_List) is 2799 begin 2800 pragma Assert (Args'First = 1); 2801 2802 if not Quiet_Output then 2803 Write_Str (Program); 2804 2805 for J in Args'Range loop 2806 2807 -- Never display -gnatea nor -gnatez 2808 2809 if Args (J).all /= "-gnatea" 2810 and then 2811 Args (J).all /= "-gnatez" 2812 then 2813 -- Do not display the -F=mapping_file switch for gnatbind if 2814 -- -dn is not specified. 2815 2816 if Opt.Keep_Temporary_Files 2817 or else Args (J)'Length < 4 2818 or else 2819 Args (J) (Args (J)'First .. Args (J)'First + 2) /= "-F=" 2820 then 2821 Write_Str (" "); 2822 2823 -- If -df is used, only display file names, not path 2824 -- names. 2825 2826 if Debug.Debug_Flag_F then 2827 declare 2828 Equal_Pos : Natural; 2829 2830 begin 2831 Equal_Pos := Args (J)'First - 1; 2832 for K in Args (J)'Range loop 2833 if Args (J) (K) = '=' then 2834 Equal_Pos := K; 2835 exit; 2836 end if; 2837 end loop; 2838 2839 if Is_Absolute_Path 2840 (Args (J) (Equal_Pos + 1 .. Args (J)'Last)) 2841 then 2842 Write_Str 2843 (Args (J) (Args (J)'First .. Equal_Pos)); 2844 Write_Str 2845 (File_Name 2846 (Args (J) 2847 (Equal_Pos + 1 .. Args (J)'Last))); 2848 2849 else 2850 Write_Str (Args (J).all); 2851 end if; 2852 end; 2853 2854 else 2855 Write_Str (Args (J).all); 2856 end if; 2857 end if; 2858 end if; 2859 end loop; 2860 2861 Write_Eol; 2862 end if; 2863 end Display; 2864 2865 -------------------------- 2866 -- Enter_Into_Obsoleted -- 2867 -------------------------- 2868 2869 procedure Enter_Into_Obsoleted (F : File_Name_Type) is 2870 Name : constant String := Get_Name_String (F); 2871 First : Natural; 2872 F2 : File_Name_Type; 2873 2874 begin 2875 First := Name'Last; 2876 while First > Name'First 2877 and then not Is_Directory_Separator (Name (First - 1)) 2878 loop 2879 First := First - 1; 2880 end loop; 2881 2882 if First /= Name'First then 2883 Name_Len := 0; 2884 Add_Str_To_Name_Buffer (Name (First .. Name'Last)); 2885 F2 := Name_Find; 2886 2887 else 2888 F2 := F; 2889 end if; 2890 2891 Debug_Msg ("New entry in Obsoleted table:", F2); 2892 Obsoleted.Set (F2, True); 2893 end Enter_Into_Obsoleted; 2894 2895 ------------------- 2896 -- Linking_Phase -- 2897 ------------------- 2898 2899 procedure Linking_Phase 2900 (Non_Std_Executable : Boolean := False; 2901 Executable : File_Name_Type := No_File; 2902 Main_ALI_File : File_Name_Type) 2903 is 2904 Linker_Switches_Last : constant Integer := Linker_Switches.Last; 2905 2906 begin 2907 if not Run_Path_Option then 2908 Linker_Switches.Increment_Last; 2909 Linker_Switches.Table (Linker_Switches.Last) := 2910 new String'("-R"); 2911 end if; 2912 2913 if CodePeer_Mode then 2914 Linker_Switches.Increment_Last; 2915 Linker_Switches.Table (Linker_Switches.Last) := 2916 new String'(CodePeer_Mode_String); 2917 end if; 2918 2919 -- Add switch -M to gnatlink if builder switch --create-map-file 2920 -- has been specified. 2921 2922 if Map_File /= null then 2923 Linker_Switches.Increment_Last; 2924 Linker_Switches.Table (Linker_Switches.Last) := 2925 new String'("-M" & Map_File.all); 2926 end if; 2927 2928 declare 2929 Args : Argument_List 2930 (Linker_Switches.First .. Linker_Switches.Last + 2); 2931 2932 Last_Arg : Integer := Linker_Switches.First - 1; 2933 Skip : Boolean := False; 2934 2935 begin 2936 -- Get all the linker switches 2937 2938 for J in Linker_Switches.First .. Linker_Switches.Last loop 2939 if Skip then 2940 Skip := False; 2941 2942 elsif Non_Std_Executable 2943 and then Linker_Switches.Table (J).all = "-o" 2944 then 2945 Skip := True; 2946 2947 -- Here we capture and duplicate the linker argument. We 2948 -- need to do the duplication since the arguments will get 2949 -- normalized. Not doing so will result in calling normalized 2950 -- two times for the same set of arguments if gnatmake is 2951 -- passed multiple mains. This can result in the wrong 2952 -- argument being passed to the linker. 2953 2954 else 2955 Last_Arg := Last_Arg + 1; 2956 Args (Last_Arg) := new String'(Linker_Switches.Table (J).all); 2957 end if; 2958 end loop; 2959 2960 -- If need be, add the -o switch 2961 2962 if Non_Std_Executable then 2963 Last_Arg := Last_Arg + 1; 2964 Args (Last_Arg) := new String'("-o"); 2965 Last_Arg := Last_Arg + 1; 2966 Args (Last_Arg) := new String'(Get_Name_String (Executable)); 2967 end if; 2968 2969 -- And invoke the linker 2970 2971 declare 2972 Success : Boolean := False; 2973 2974 begin 2975 -- If gnatmake was invoked with --subdirs, put the executable in 2976 -- the subdirectory specified. 2977 2978 if Subdirs /= null then 2979 Change_Dir (Object_Directory_Path.all); 2980 end if; 2981 2982 Link (Main_ALI_File, 2983 Link_With_Shared_Libgcc.all & 2984 Args (Args'First .. Last_Arg), 2985 Success); 2986 2987 if Success then 2988 Successful_Links.Increment_Last; 2989 Successful_Links.Table (Successful_Links.Last) := Main_ALI_File; 2990 2991 elsif Osint.Number_Of_Files = 1 or else not Keep_Going then 2992 Make_Failed ("*** link failed."); 2993 2994 else 2995 Set_Standard_Error; 2996 Write_Line ("*** link failed"); 2997 2998 if Commands_To_Stdout then 2999 Set_Standard_Output; 3000 end if; 3001 3002 Failed_Links.Increment_Last; 3003 Failed_Links.Table (Failed_Links.Last) := Main_ALI_File; 3004 end if; 3005 end; 3006 end; 3007 3008 Linker_Switches.Set_Last (Linker_Switches_Last); 3009 end Linking_Phase; 3010 3011 ------------------- 3012 -- Binding_Phase -- 3013 ------------------- 3014 3015 procedure Binding_Phase (Main_ALI_File : File_Name_Type) is 3016 Args : Argument_List (Binder_Switches.First .. Binder_Switches.Last + 2); 3017 -- The arguments for the invocation of gnatbind 3018 3019 Last_Arg : Natural := Binder_Switches.Last; 3020 -- Index of the last argument in Args 3021 3022 Shared_Libs : Boolean := False; 3023 -- Set to True when there are shared library project files or 3024 -- when gnatbind is invoked with -shared. 3025 3026 begin 3027 3028 -- Check now for switch -shared 3029 3030 for J in Binder_Switches.First .. Last_Arg loop 3031 if Binder_Switches.Table (J).all = "-shared" then 3032 Shared_Libs := True; 3033 exit; 3034 end if; 3035 end loop; 3036 3037 -- If shared libraries present, invoke gnatlink with 3038 -- -shared-libgcc. 3039 3040 if Shared_Libs then 3041 Link_With_Shared_Libgcc := Shared_Libgcc_Switch'Access; 3042 end if; 3043 3044 -- Get all the binder switches 3045 3046 for J in Binder_Switches.First .. Last_Arg loop 3047 Args (J) := Binder_Switches.Table (J); 3048 end loop; 3049 3050 if CodePeer_Mode then 3051 Last_Arg := Last_Arg + 1; 3052 Args (Last_Arg) := CodePeer_Mode_String'Access; 3053 end if; 3054 3055 -- If gnatmake was invoked with --subdirs, put the 3056 -- binder generated files in the subdirectory specified. 3057 3058 if Subdirs /= null then 3059 Change_Dir (Object_Directory_Path.all); 3060 end if; 3061 3062 Bind (Main_ALI_File, Bind_Shared.all & Args (Args'First .. Last_Arg)); 3063 3064 end Binding_Phase; 3065 3066 ----------------------- 3067 -- Compilation_Phase -- 3068 ----------------------- 3069 3070 procedure Compilation_Phase 3071 (Main_Source_File : File_Name_Type; 3072 Current_Main_Index : Int := 0; 3073 Total_Compilation_Failures : in out Natural; 3074 Executable : File_Name_Type := No_File; 3075 Stop_Compile : out Boolean) 3076 is 3077 Args : Argument_List (1 .. Gcc_Switches.Last); 3078 First_Compiled_File : File_Name_Type; 3079 Youngest_Obj_File : File_Name_Type; 3080 Youngest_Obj_Stamp : Time_Stamp_Type; 3081 3082 Is_Main_Unit : Boolean; 3083 -- Set True by Compile_Sources if Main_Source_File can be a main unit 3084 3085 Compilation_Failures : Natural; 3086 3087 Executable_Stamp : Time_Stamp_Type; 3088 3089 begin 3090 Stop_Compile := False; 3091 3092 for J in 1 .. Gcc_Switches.Last loop 3093 Args (J) := Gcc_Switches.Table (J); 3094 end loop; 3095 3096 -- Now we invoke Compile_Sources for the current main 3097 3098 Compile_Sources 3099 (Main_Source => Main_Source_File, 3100 Args => Args, 3101 First_Compiled_File => First_Compiled_File, 3102 Most_Recent_Obj_File => Youngest_Obj_File, 3103 Most_Recent_Obj_Stamp => Youngest_Obj_Stamp, 3104 Main_Unit => Is_Main_Unit, 3105 Main_Index => Current_Main_Index, 3106 Compilation_Failures => Compilation_Failures, 3107 Check_Readonly_Files => Check_Readonly_Files, 3108 Do_Not_Execute => Do_Not_Execute, 3109 Force_Compilations => Force_Compilations, 3110 In_Place_Mode => In_Place_Mode, 3111 Keep_Going => Keep_Going, 3112 Initialize_ALI_Data => True, 3113 Max_Process => Maximum_Processes); 3114 3115 if Verbose_Mode then 3116 Write_Str ("End of compilation"); 3117 Write_Eol; 3118 end if; 3119 3120 Total_Compilation_Failures := 3121 Total_Compilation_Failures + Compilation_Failures; 3122 3123 if Total_Compilation_Failures /= 0 then 3124 Stop_Compile := True; 3125 return; 3126 end if; 3127 3128 if List_Dependencies then 3129 if First_Compiled_File /= No_File then 3130 Inform 3131 (First_Compiled_File, 3132 "must be recompiled. Can't generate dependence list."); 3133 else 3134 List_Depend; 3135 end if; 3136 3137 elsif First_Compiled_File = No_File 3138 and then not Do_Bind_Step 3139 and then not Quiet_Output 3140 and then Osint.Number_Of_Files = 1 3141 then 3142 Inform (Msg => "objects up to date."); 3143 Stop_Compile := True; 3144 return; 3145 3146 elsif Do_Not_Execute and then First_Compiled_File /= No_File then 3147 Write_Name (First_Compiled_File); 3148 Write_Eol; 3149 end if; 3150 3151 -- Stop after compile step if any of: 3152 3153 -- 1) -n (Do_Not_Execute) specified 3154 3155 -- 2) -M (List_Dependencies) specified (also sets 3156 -- Do_Not_Execute above, so this is probably superfluous). 3157 3158 -- 3) -c (Compile_Only) specified, but not -b (Bind_Only) 3159 3160 -- 4) Made unit cannot be a main unit 3161 3162 if ((Do_Not_Execute 3163 or List_Dependencies 3164 or not Do_Bind_Step 3165 or not Is_Main_Unit) 3166 and not No_Main_Subprogram 3167 and not Build_Bind_And_Link_Full_Project) 3168 or Unique_Compile 3169 then 3170 Stop_Compile := True; 3171 return; 3172 end if; 3173 3174 -- If the objects were up-to-date check if the executable file is also 3175 -- up-to-date. For now always bind and link in CodePeer mode where there 3176 -- is no executable. 3177 3178 if not CodePeer_Mode 3179 and then Do_Link_Step 3180 and then First_Compiled_File = No_File 3181 then 3182 Executable_Stamp := File_Stamp (Executable); 3183 3184 if not Executable_Obsolete then 3185 Executable_Obsolete := Youngest_Obj_Stamp > Executable_Stamp; 3186 end if; 3187 3188 if not Executable_Obsolete then 3189 for Index in reverse 1 .. Dependencies.Last loop 3190 if Is_In_Obsoleted (Dependencies.Table (Index).Depends_On) then 3191 Enter_Into_Obsoleted (Dependencies.Table (Index).This); 3192 end if; 3193 end loop; 3194 3195 Executable_Obsolete := Is_In_Obsoleted (Main_Source_File); 3196 Dependencies.Init; 3197 end if; 3198 3199 if not Executable_Obsolete then 3200 3201 -- If no Ada object files obsolete the executable, check 3202 -- for younger or missing linker files. 3203 3204 Check_Linker_Options 3205 (Executable_Stamp, 3206 Youngest_Obj_File, 3207 Youngest_Obj_Stamp); 3208 3209 Executable_Obsolete := Youngest_Obj_File /= No_File; 3210 end if; 3211 3212 -- Return if the executable is up to date and otherwise 3213 -- motivate the relink/rebind. 3214 3215 if not Executable_Obsolete then 3216 if not Quiet_Output then 3217 Inform (Executable, "up to date."); 3218 end if; 3219 3220 Stop_Compile := True; 3221 return; 3222 end if; 3223 3224 if Executable_Stamp (1) = ' ' then 3225 if not No_Main_Subprogram then 3226 Verbose_Msg (Executable, "missing.", Prefix => " "); 3227 end if; 3228 3229 elsif Youngest_Obj_Stamp (1) = ' ' then 3230 Verbose_Msg 3231 (Youngest_Obj_File, "missing.", Prefix => " "); 3232 3233 elsif Youngest_Obj_Stamp > Executable_Stamp then 3234 Verbose_Msg 3235 (Youngest_Obj_File, 3236 "(" & String (Youngest_Obj_Stamp) & ") newer than", 3237 Executable, 3238 "(" & String (Executable_Stamp) & ")"); 3239 3240 else 3241 Verbose_Msg 3242 (Executable, "needs to be rebuilt", Prefix => " "); 3243 3244 end if; 3245 end if; 3246 end Compilation_Phase; 3247 3248 ------------------------ 3249 -- Compute_Executable -- 3250 ------------------------ 3251 3252 procedure Compute_Executable 3253 (Main_Source_File : File_Name_Type; 3254 Executable : out File_Name_Type; 3255 Non_Std_Executable : out Boolean) 3256 is 3257 begin 3258 Executable := No_File; 3259 Non_Std_Executable := 3260 Targparm.Executable_Extension_On_Target /= No_Name; 3261 3262 -- Look inside the linker switches to see if the name of the final 3263 -- executable program was specified. 3264 3265 for J in reverse Linker_Switches.First .. Linker_Switches.Last loop 3266 if Linker_Switches.Table (J).all = Output_Flag.all then 3267 pragma Assert (J < Linker_Switches.Last); 3268 3269 -- We cannot specify a single executable for several main 3270 -- subprograms 3271 3272 if Osint.Number_Of_Files > 1 then 3273 Fail ("cannot specify a single executable for several mains"); 3274 end if; 3275 3276 Name_Len := 0; 3277 Add_Str_To_Name_Buffer (Linker_Switches.Table (J + 1).all); 3278 Executable := Name_Enter; 3279 3280 Verbose_Msg (Executable, "final executable"); 3281 end if; 3282 end loop; 3283 3284 -- If the name of the final executable program was not specified then 3285 -- construct it from the main input file. 3286 3287 if Executable = No_File then 3288 Executable := Executable_Name (Strip_Suffix (Main_Source_File)); 3289 end if; 3290 3291 end Compute_Executable; 3292 3293 -------------- 3294 -- Gnatmake -- 3295 -------------- 3296 3297 procedure Gnatmake is 3298 Main_Source_File : File_Name_Type; 3299 -- The source file containing the main compilation unit 3300 3301 Total_Compilation_Failures : Natural := 0; 3302 3303 Main_ALI_File : File_Name_Type; 3304 -- The ali file corresponding to Main_Source_File 3305 3306 Executable : File_Name_Type := No_File; 3307 -- The file name of an executable 3308 3309 Non_Std_Executable : Boolean := False; 3310 -- Non_Std_Executable is set to True when there is a possibility that 3311 -- the linker will not choose the correct executable file name. 3312 3313 Current_Main_Index : Int := 0; 3314 -- If not zero, the index of the current main unit in its source file 3315 3316 Is_First_Main : Boolean; 3317 -- Whether we are processing the first main 3318 3319 Stop_Compile : Boolean; 3320 3321 Discard : Boolean; 3322 pragma Warnings (Off, Discard); 3323 3324 begin 3325 Install_Int_Handler (Sigint_Intercepted'Access); 3326 3327 Do_Compile_Step := True; 3328 Do_Bind_Step := True; 3329 Do_Link_Step := True; 3330 3331 Obsoleted.Reset; 3332 3333 Make.Initialize; 3334 3335 Bind_Shared := No_Shared_Switch'Access; 3336 Link_With_Shared_Libgcc := No_Shared_Libgcc_Switch'Access; 3337 3338 Failed_Links.Set_Last (0); 3339 Successful_Links.Set_Last (0); 3340 3341 -- Special case when switch -B was specified 3342 3343 if Main_Index /= 0 and then Osint.Number_Of_Files > 1 then 3344 Make_Failed ("cannot specify several mains with a multi-unit index"); 3345 end if; 3346 3347 if Verbose_Mode then 3348 Write_Eol; 3349 Display_Version ("GNATMAKE", "1992"); 3350 end if; 3351 3352 if Osint.Number_Of_Files = 0 then 3353 -- Call Get_Target_Parameters to ensure that flags are properly 3354 -- set before calling Usage. 3355 3356 Targparm.Get_Target_Parameters; 3357 3358 -- Output usage information if no argument on the command line 3359 3360 if Argument_Count = 0 then 3361 Usage; 3362 else 3363 Try_Help; 3364 end if; 3365 3366 Finish_Program (E_Success); 3367 end if; 3368 3369 -- Get the first executable. 3370 -- ??? This needs to be done early, because Osint.Next_Main_File also 3371 -- initializes the primary search directory, used below to initialize 3372 -- the "-I" parameter 3373 3374 Main_Source_File := Next_Main_Source; -- No directory information 3375 3376 -- If -M was specified, behave as if -n was specified 3377 3378 if List_Dependencies then 3379 Do_Not_Execute := True; 3380 end if; 3381 3382 Add_Switch ("-I-", Compiler); 3383 3384 if Look_In_Primary_Dir then 3385 Add_Switch 3386 ("-I" & 3387 Normalize_Directory_Name 3388 (Get_Primary_Src_Search_Directory.all).all, 3389 Compiler, 3390 Append_Switch => False); 3391 3392 end if; 3393 3394 -- If the user wants a program without a main subprogram, add the 3395 -- appropriate switch to the binder. 3396 3397 if No_Main_Subprogram then 3398 Add_Switch ("-z", Binder); 3399 end if; 3400 3401 -- The combination of -f -u and one or several mains on the command line 3402 -- implies -a. 3403 3404 if Force_Compilations 3405 and then Unique_Compile 3406 and then Main_On_Command_Line 3407 then 3408 Must_Compile := True; 3409 end if; 3410 3411 Bad_Compilation.Init; 3412 3413 -- Here is where the make process is started 3414 3415 Queue.Initialize; 3416 3417 Is_First_Main := True; 3418 3419 Multiple_Main_Loop : for N_File in 1 .. Osint.Number_Of_Files loop 3420 if Current_File_Index /= No_Index then 3421 Main_Index := Current_File_Index; 3422 end if; 3423 3424 Current_Main_Index := Main_Index; 3425 3426 if Is_First_Main then 3427 3428 -- Put the default source dirs in the source path only now, so 3429 -- that we take the correct ones in the case where --RTS= is 3430 -- specified in the Builder switches. 3431 3432 Osint.Add_Default_Search_Dirs; 3433 3434 -- Get the target parameters, which are only needed for a couple 3435 -- of cases in gnatmake. Protect against an exception, such as the 3436 -- case of system.ads missing from the library, and fail 3437 -- gracefully. 3438 3439 begin 3440 Targparm.Get_Target_Parameters; 3441 exception 3442 when Unrecoverable_Error => 3443 Make_Failed ("*** make failed."); 3444 end; 3445 3446 Gcc_Path := GNAT.OS_Lib.Locate_Exec_On_Path (Gcc.all); 3447 Gnatbind_Path := GNAT.OS_Lib.Locate_Exec_On_Path (Gnatbind.all); 3448 Gnatlink_Path := GNAT.OS_Lib.Locate_Exec_On_Path (Gnatlink.all); 3449 3450 -- If we have specified -j switch both from the project file 3451 -- and on the command line, the one from the command line takes 3452 -- precedence. 3453 3454 if Debug.Debug_Flag_M then 3455 Write_Line ("Maximum number of simultaneous compilations =" & 3456 Maximum_Processes'Img); 3457 end if; 3458 3459 -- Allocate as many temporary mapping file names as the maximum 3460 -- number of compilations processed. 3461 3462 The_Mapping_Files := 3463 (Mapping_File_Names => 3464 new Temp_Path_Names (1 .. Maximum_Processes), 3465 Last_Mapping_File_Names => 0, 3466 Free_Mapping_File_Indexes => 3467 new Free_File_Indexes (1 .. Maximum_Processes), 3468 Last_Free_Indexes => 0); 3469 3470 Is_First_Main := False; 3471 end if; 3472 3473 Executable_Obsolete := False; 3474 3475 Compute_Executable 3476 (Main_Source_File => Main_Source_File, 3477 Executable => Executable, 3478 Non_Std_Executable => Non_Std_Executable); 3479 3480 if Do_Compile_Step then 3481 Compilation_Phase 3482 (Main_Source_File => Main_Source_File, 3483 Current_Main_Index => Current_Main_Index, 3484 Total_Compilation_Failures => Total_Compilation_Failures, 3485 Executable => Executable, 3486 Stop_Compile => Stop_Compile); 3487 3488 if Stop_Compile then 3489 if Total_Compilation_Failures /= 0 then 3490 if Keep_Going then 3491 goto Next_Main; 3492 3493 else 3494 List_Bad_Compilations; 3495 Report_Compilation_Failed; 3496 end if; 3497 3498 elsif Osint.Number_Of_Files = 1 then 3499 exit Multiple_Main_Loop; 3500 else 3501 goto Next_Main; 3502 end if; 3503 end if; 3504 end if; 3505 3506 -- If we are here, it means that we need to rebuilt the current main, 3507 -- so we set Executable_Obsolete to True to make sure that subsequent 3508 -- mains will be rebuilt. 3509 3510 Main_ALI_In_Place_Mode_Step : declare 3511 ALI_File : File_Name_Type; 3512 Src_File : File_Name_Type; 3513 3514 begin 3515 Src_File := Strip_Directory (Main_Source_File); 3516 ALI_File := Lib_File_Name (Src_File, Current_Main_Index); 3517 Main_ALI_File := Full_Lib_File_Name (ALI_File); 3518 3519 -- When In_Place_Mode, the library file can be located in the 3520 -- Main_Source_File directory which may not be present in the 3521 -- library path. If it is not present then use the corresponding 3522 -- library file name. 3523 3524 if Main_ALI_File = No_File and then In_Place_Mode then 3525 Get_Name_String (Get_Directory (Full_Source_Name (Src_File))); 3526 Get_Name_String_And_Append (ALI_File); 3527 Main_ALI_File := Name_Find; 3528 Main_ALI_File := Full_Lib_File_Name (Main_ALI_File); 3529 end if; 3530 3531 if Main_ALI_File = No_File then 3532 Make_Failed ("could not find the main ALI file"); 3533 end if; 3534 end Main_ALI_In_Place_Mode_Step; 3535 3536 if Do_Bind_Step then 3537 Binding_Phase (Main_ALI_File); 3538 end if; 3539 3540 if Do_Link_Step then 3541 Linking_Phase 3542 (Non_Std_Executable => Non_Std_Executable, 3543 Executable => Executable, 3544 Main_ALI_File => Main_ALI_File); 3545 end if; 3546 3547 -- We go to here when we skip the bind and link steps 3548 3549 <<Next_Main>> 3550 3551 Queue.Remove_Marks; 3552 3553 if N_File < Osint.Number_Of_Files then 3554 Main_Source_File := Next_Main_Source; -- No directory information 3555 end if; 3556 end loop Multiple_Main_Loop; 3557 3558 if Failed_Links.Last > 0 then 3559 for Index in 1 .. Successful_Links.Last loop 3560 Write_Str ("Linking of """); 3561 Write_Str (Get_Name_String (Successful_Links.Table (Index))); 3562 Write_Line (""" succeeded."); 3563 end loop; 3564 3565 Set_Standard_Error; 3566 3567 for Index in 1 .. Failed_Links.Last loop 3568 Write_Str ("Linking of """); 3569 Write_Str (Get_Name_String (Failed_Links.Table (Index))); 3570 Write_Line (""" failed."); 3571 end loop; 3572 3573 if Commands_To_Stdout then 3574 Set_Standard_Output; 3575 end if; 3576 3577 if Total_Compilation_Failures = 0 then 3578 Report_Compilation_Failed; 3579 end if; 3580 end if; 3581 3582 if Total_Compilation_Failures /= 0 then 3583 List_Bad_Compilations; 3584 Report_Compilation_Failed; 3585 end if; 3586 3587 Finish_Program (E_Success); 3588 3589 exception 3590 when X : others => 3591 Set_Standard_Error; 3592 Write_Line (Exception_Information (X)); 3593 Make_Failed ("INTERNAL ERROR. Please report."); 3594 end Gnatmake; 3595 3596 ---------- 3597 -- Hash -- 3598 ---------- 3599 3600 function Hash (F : File_Name_Type) return Header_Num is 3601 begin 3602 return Header_Num (1 + F mod Max_Header); 3603 end Hash; 3604 3605 -------------------- 3606 -- In_Ada_Lib_Dir -- 3607 -------------------- 3608 3609 function In_Ada_Lib_Dir (File : File_Name_Type) return Boolean is 3610 D : constant File_Name_Type := Get_Directory (File); 3611 B : constant Byte := Get_Name_Table_Byte (D); 3612 begin 3613 return (B and Ada_Lib_Dir) /= 0; 3614 end In_Ada_Lib_Dir; 3615 3616 ----------------------- 3617 -- Init_Mapping_File -- 3618 ----------------------- 3619 3620 procedure Init_Mapping_File (File_Index : out Natural) is 3621 FD : File_Descriptor; 3622 Status : Boolean; 3623 -- For call to Close 3624 3625 begin 3626 -- Increase the index of the last mapping file for this project 3627 3628 The_Mapping_Files.Last_Mapping_File_Names := 3629 The_Mapping_Files.Last_Mapping_File_Names + 1; 3630 3631 -- Just create an empty file 3632 3633 Tempdir.Create_Temp_File 3634 (FD, 3635 The_Mapping_Files.Mapping_File_Names 3636 (The_Mapping_Files.Last_Mapping_File_Names)); 3637 3638 if FD = Invalid_FD then 3639 Make_Failed ("disk full"); 3640 else 3641 Record_Temp_File 3642 (The_Mapping_Files.Mapping_File_Names 3643 (The_Mapping_Files.Last_Mapping_File_Names)); 3644 end if; 3645 3646 Close (FD, Status); 3647 3648 if not Status then 3649 Make_Failed ("disk full"); 3650 end if; 3651 3652 -- And return the index of the newly created file 3653 3654 File_Index := The_Mapping_Files.Last_Mapping_File_Names; 3655 end Init_Mapping_File; 3656 3657 ---------------- 3658 -- Initialize -- 3659 ---------------- 3660 3661 procedure Initialize is 3662 procedure Check_Version_And_Help is 3663 new Check_Version_And_Help_G (Makeusg); 3664 3665 begin 3666 -- Override default initialization of Check_Object_Consistency since 3667 -- this is normally False for GNATBIND, but is True for GNATMAKE since 3668 -- we do not need to check source consistency again once GNATMAKE has 3669 -- looked at the sources to check. 3670 3671 Check_Object_Consistency := True; 3672 3673 -- Package initializations (the order of calls is important here) 3674 3675 Output.Set_Standard_Error; 3676 3677 Gcc_Switches.Init; 3678 Binder_Switches.Init; 3679 Linker_Switches.Init; 3680 3681 Csets.Initialize; 3682 Snames.Initialize; 3683 Stringt.Initialize; 3684 3685 Dependencies.Init; 3686 3687 RTS_Specified := null; 3688 N_M_Switch := 0; 3689 3690 Mains.Delete; 3691 3692 -- Add the directory where gnatmake is invoked in front of the path, 3693 -- if gnatmake is invoked from a bin directory or with directory 3694 -- information. 3695 3696 declare 3697 Prefix : constant String := Executable_Prefix_Path; 3698 Command : constant String := Command_Name; 3699 3700 begin 3701 if Prefix'Length > 0 then 3702 declare 3703 PATH : constant String := 3704 Prefix & Directory_Separator & "bin" & Path_Separator 3705 & Getenv ("PATH").all; 3706 begin 3707 Setenv ("PATH", PATH); 3708 end; 3709 3710 else 3711 for Index in reverse Command'Range loop 3712 if Command (Index) = Directory_Separator then 3713 declare 3714 Absolute_Dir : constant String := 3715 Normalize_Pathname 3716 (Command (Command'First .. Index)); 3717 PATH : constant String := 3718 Absolute_Dir & 3719 Path_Separator & 3720 Getenv ("PATH").all; 3721 begin 3722 Setenv ("PATH", PATH); 3723 end; 3724 3725 exit; 3726 end if; 3727 end loop; 3728 end if; 3729 end; 3730 3731 -- Scan the switches and arguments 3732 3733 -- First, scan to detect --version and/or --help 3734 3735 Check_Version_And_Help ("GNATMAKE", "1995"); 3736 3737 -- Scan again the switch and arguments, now that we are sure that they 3738 -- do not include --version or --help. 3739 3740 -- First, check for switch -P and, if found and gprbuild is available, 3741 -- silently invoke gprbuild, with switch --target if not on a native 3742 -- platform. 3743 3744 declare 3745 Arg_Len : Natural := Argument_Count; 3746 Call_Gprbuild : Boolean := False; 3747 Gprbuild : String_Access := null; 3748 Pos : Natural := 0; 3749 Success : Boolean; 3750 Target : String_Access := null; 3751 3752 In_Gnatmake_Switches : Boolean := True; 3753 -- Set to False after -cargs, -bargs, or -largs, to avoid detecting 3754 -- -P switches that are not for gnatmake. 3755 3756 begin 3757 Find_Program_Name; 3758 3759 if Name_Len >= 8 3760 and then Name_Buffer (Name_Len - 7 .. Name_Len) = "gnatmake" 3761 then 3762 if Name_Len > 9 then 3763 Target := new String'(Name_Buffer (1 .. Name_Len - 9)); 3764 Arg_Len := Arg_Len + 1; 3765 end if; 3766 3767 for J in 1 .. Argument_Count loop 3768 declare 3769 Arg : constant String := Argument (J); 3770 begin 3771 if Arg = "-cargs" or Arg = "-bargs" or Arg = "-largs" then 3772 In_Gnatmake_Switches := False; 3773 3774 elsif Arg = "-margs" then 3775 In_Gnatmake_Switches := True; 3776 3777 elsif In_Gnatmake_Switches 3778 and then Arg'Length >= 2 3779 and then Arg (Arg'First .. Arg'First + 1) = "-P" 3780 then 3781 Call_Gprbuild := True; 3782 exit; 3783 end if; 3784 end; 3785 end loop; 3786 3787 if Call_Gprbuild then 3788 Gprbuild := Locate_Exec_On_Path (Exec_Name => "gprbuild"); 3789 3790 if Gprbuild = null then 3791 Fail_Program 3792 ("project files are no longer supported by gnamake;" & 3793 " use gprbuild instead"); 3794 end if; 3795 3796 declare 3797 Args : Argument_List (1 .. Arg_Len); 3798 begin 3799 if Target /= null then 3800 Args (1) := new String'("--target=" & Target.all); 3801 Pos := 1; 3802 end if; 3803 3804 for J in 1 .. Argument_Count loop 3805 Pos := Pos + 1; 3806 Args (Pos) := new String'(Argument (J)); 3807 end loop; 3808 3809 Spawn (Gprbuild.all, Args, Success); 3810 3811 Free (Gprbuild); 3812 3813 if Success then 3814 Exit_Program (E_Success); 3815 else 3816 Exit_Program (E_Errors); 3817 end if; 3818 end; 3819 end if; 3820 end if; 3821 end; 3822 3823 Scan_Args : for Next_Arg in 1 .. Argument_Count loop 3824 Scan_Make_Arg (Argument (Next_Arg)); 3825 end loop Scan_Args; 3826 3827 if Make_Steps then 3828 Do_Compile_Step := Compile_Only; 3829 Do_Bind_Step := Bind_Only; 3830 Do_Link_Step := Link_Only; 3831 3832 if Do_Compile_Step and then Do_Link_Step then 3833 Do_Bind_Step := True; 3834 end if; 3835 end if; 3836 3837 if N_M_Switch > 0 and RTS_Specified = null then 3838 Process_Multilib; 3839 end if; 3840 3841 if Commands_To_Stdout then 3842 Set_Standard_Output; 3843 end if; 3844 3845 if Usage_Requested then 3846 Usage; 3847 end if; 3848 3849 -- Test for trailing -P switch 3850 3851 if Project_File_Name_Present and then Project_File_Name = null then 3852 Make_Failed ("project file name missing after -P"); 3853 3854 -- Test for trailing -o switch 3855 3856 elsif Output_File_Name_Present and then not Output_File_Name_Seen then 3857 Make_Failed ("output file name missing after -o"); 3858 3859 -- Test for trailing -D switch 3860 3861 elsif Object_Directory_Present and then not Object_Directory_Seen then 3862 Make_Failed ("object directory missing after -D"); 3863 end if; 3864 3865 -- Test for simultaneity of -i and -D 3866 3867 if Object_Directory_Path /= null and then In_Place_Mode then 3868 Make_Failed ("-i and -D cannot be used simultaneously"); 3869 end if; 3870 3871 -- If --subdirs= is specified, but not -P, this is equivalent to -D, 3872 -- except that the directory is created if it does not exist. 3873 3874 if Subdirs /= null then 3875 if Object_Directory_Path /= null then 3876 Make_Failed ("--subdirs and -D cannot be used simultaneously"); 3877 3878 elsif In_Place_Mode then 3879 Make_Failed ("--subdirs and -i cannot be used simultaneously"); 3880 3881 else 3882 if not Is_Directory (Subdirs.all) then 3883 begin 3884 Ada.Directories.Create_Path (Subdirs.all); 3885 exception 3886 when others => 3887 Make_Failed ("unable to create object directory " & 3888 Subdirs.all); 3889 end; 3890 end if; 3891 3892 Object_Directory_Present := True; 3893 3894 declare 3895 Argv : constant String (1 .. Subdirs'Length) := 3896 Subdirs.all; 3897 begin 3898 Scan_Make_Arg (Argv); 3899 end; 3900 end if; 3901 end if; 3902 3903 -- Deal with -C= switch 3904 3905 if Gnatmake_Mapping_File /= null then 3906 3907 -- First, check compatibility with other switches 3908 3909 if Maximum_Processes > 1 then 3910 Make_Failed ("-C= switch is not compatible with -jnnn switch"); 3911 end if; 3912 3913 Fmap.Initialize (Gnatmake_Mapping_File.all); 3914 Add_Switch 3915 ("-gnatem=" & Gnatmake_Mapping_File.all, 3916 Compiler); 3917 end if; 3918 3919 Osint.Add_Default_Search_Dirs; 3920 3921 -- Source file lookups should be cached for efficiency. Source files 3922 -- are not supposed to change. However, we do that now only if no 3923 -- project file is used; if a project file is used, we do it just 3924 -- after changing the directory to the object directory. 3925 3926 Osint.Source_File_Data (Cache => True); 3927 3928 -- Read gnat.adc file to initialize Fname.UF 3929 3930 Fname.UF.Initialize; 3931 3932 if Config_File then 3933 begin 3934 Fname.SF.Read_Source_File_Name_Pragmas; 3935 3936 exception 3937 when Err : SFN_Scan.Syntax_Error_In_GNAT_ADC => 3938 Make_Failed (Exception_Message (Err)); 3939 end; 3940 end if; 3941 3942 if Debug.Debug_Flag_N then 3943 Opt.Keep_Temporary_Files := True; 3944 end if; 3945 end Initialize; 3946 3947 --------------------- 3948 -- Is_In_Obsoleted -- 3949 --------------------- 3950 3951 function Is_In_Obsoleted (F : File_Name_Type) return Boolean is 3952 begin 3953 if F = No_File then 3954 return False; 3955 3956 else 3957 declare 3958 Name : constant String := Get_Name_String (F); 3959 First : Natural; 3960 F2 : File_Name_Type; 3961 3962 begin 3963 First := Name'Last; 3964 while First > Name'First 3965 and then not Is_Directory_Separator (Name (First - 1)) 3966 loop 3967 First := First - 1; 3968 end loop; 3969 3970 if First /= Name'First then 3971 Name_Len := 0; 3972 Add_Str_To_Name_Buffer (Name (First .. Name'Last)); 3973 F2 := Name_Find; 3974 3975 else 3976 F2 := F; 3977 end if; 3978 3979 return Obsoleted.Get (F2); 3980 end; 3981 end if; 3982 end Is_In_Obsoleted; 3983 3984 ---------- 3985 -- Link -- 3986 ---------- 3987 3988 procedure Link 3989 (ALI_File : File_Name_Type; 3990 Args : Argument_List; 3991 Success : out Boolean) 3992 is 3993 Link_Args : Argument_List (1 .. Args'Length + 1); 3994 3995 begin 3996 Get_Name_String (ALI_File); 3997 Link_Args (1) := new String'(Name_Buffer (1 .. Name_Len)); 3998 3999 Link_Args (2 .. Args'Length + 1) := Args; 4000 4001 GNAT.OS_Lib.Normalize_Arguments (Link_Args); 4002 4003 Display (Gnatlink.all, Link_Args); 4004 4005 if Gnatlink_Path = null then 4006 Make_Failed ("error, unable to locate " & Gnatlink.all); 4007 end if; 4008 4009 GNAT.OS_Lib.Spawn (Gnatlink_Path.all, Link_Args, Success); 4010 end Link; 4011 4012 --------------------------- 4013 -- List_Bad_Compilations -- 4014 --------------------------- 4015 4016 procedure List_Bad_Compilations is 4017 begin 4018 if not No_Exit_Message then 4019 for J in Bad_Compilation.First .. Bad_Compilation.Last loop 4020 if Bad_Compilation.Table (J).File = No_File then 4021 null; 4022 elsif not Bad_Compilation.Table (J).Found then 4023 Inform (Bad_Compilation.Table (J).File, "not found"); 4024 else 4025 Inform (Bad_Compilation.Table (J).File, "compilation error"); 4026 end if; 4027 end loop; 4028 end if; 4029 end List_Bad_Compilations; 4030 4031 ----------------- 4032 -- List_Depend -- 4033 ----------------- 4034 4035 procedure List_Depend is 4036 Lib_Name : File_Name_Type; 4037 Obj_Name : File_Name_Type; 4038 Src_Name : File_Name_Type; 4039 4040 Len : Natural; 4041 Line_Pos : Natural; 4042 Line_Size : constant := 77; 4043 4044 begin 4045 Set_Standard_Output; 4046 4047 for A in ALIs.First .. ALIs.Last loop 4048 Lib_Name := ALIs.Table (A).Afile; 4049 4050 -- We have to provide the full library file name in In_Place_Mode 4051 4052 if In_Place_Mode then 4053 Lib_Name := Full_Lib_File_Name (Lib_Name); 4054 end if; 4055 4056 Obj_Name := Object_File_Name (Lib_Name); 4057 Write_Name (Obj_Name); 4058 Write_Str (" :"); 4059 4060 Get_Name_String (Obj_Name); 4061 Len := Name_Len; 4062 Line_Pos := Len + 2; 4063 4064 for D in ALIs.Table (A).First_Sdep .. ALIs.Table (A).Last_Sdep loop 4065 Src_Name := Sdep.Table (D).Sfile; 4066 4067 if Is_Internal_File_Name (Src_Name) 4068 and then not Check_Readonly_Files 4069 then 4070 null; 4071 else 4072 if not Quiet_Output then 4073 Src_Name := Full_Source_Name (Src_Name); 4074 end if; 4075 4076 Get_Name_String (Src_Name); 4077 Len := Name_Len; 4078 4079 if Line_Pos + Len + 1 > Line_Size then 4080 Write_Str (" \"); 4081 Write_Eol; 4082 Line_Pos := 0; 4083 end if; 4084 4085 Line_Pos := Line_Pos + Len + 1; 4086 4087 Write_Str (" "); 4088 Write_Name (Src_Name); 4089 end if; 4090 end loop; 4091 4092 Write_Eol; 4093 end loop; 4094 4095 if not Commands_To_Stdout then 4096 Set_Standard_Error; 4097 end if; 4098 end List_Depend; 4099 4100 ----------------- 4101 -- Make_Failed -- 4102 ----------------- 4103 4104 procedure Make_Failed (S : String) is 4105 begin 4106 Fail_Program (S); 4107 end Make_Failed; 4108 4109 -------------------- 4110 -- Mark_Directory -- 4111 -------------------- 4112 4113 procedure Mark_Directory (Dir : String; Mark : Lib_Mark_Type) is 4114 N : Name_Id; 4115 B : Byte; 4116 4117 Real_Path : constant String := Normalize_Pathname (Dir, ""); 4118 4119 begin 4120 Name_Len := 0; 4121 4122 if Real_Path'Length = 0 then 4123 Add_Str_To_Name_Buffer (Dir); 4124 4125 else 4126 Add_Str_To_Name_Buffer (Real_Path); 4127 end if; 4128 4129 -- Last character is supposed to be a directory separator 4130 4131 if not Is_Directory_Separator (Name_Buffer (Name_Len)) then 4132 Add_Char_To_Name_Buffer (Directory_Separator); 4133 end if; 4134 4135 -- Add flags to the already existing flags 4136 4137 N := Name_Find; 4138 B := Get_Name_Table_Byte (N); 4139 Set_Name_Table_Byte (N, B or Mark); 4140 end Mark_Directory; 4141 4142 ---------------------- 4143 -- Process_Multilib -- 4144 ---------------------- 4145 4146 procedure Process_Multilib is 4147 Output_FD : File_Descriptor; 4148 Output_Name : String_Access; 4149 Arg_Index : Natural := 0; 4150 Success : Boolean := False; 4151 Return_Code : Integer := 0; 4152 Multilib_Gcc_Path : String_Access; 4153 Multilib_Gcc : String_Access; 4154 N_Read : Integer := 0; 4155 Line : String (1 .. 1000); 4156 Args : Argument_List (1 .. N_M_Switch + 1); 4157 4158 begin 4159 pragma Assert (N_M_Switch > 0 and RTS_Specified = null); 4160 4161 -- In case we detected a multilib switch and the user has not 4162 -- manually specified a specific RTS we emulate the following command: 4163 -- gnatmake $FLAGS --RTS=$(gcc -print-multi-directory $FLAGS) 4164 4165 -- First select the flags which might have an impact on multilib 4166 -- processing. Note that this is an heuristic selection and it 4167 -- will need to be maintained over time. The condition has to 4168 -- be kept synchronized with N_M_Switch counting in Scan_Make_Arg. 4169 4170 for Next_Arg in 1 .. Argument_Count loop 4171 declare 4172 Argv : constant String := Argument (Next_Arg); 4173 4174 begin 4175 if Argv'Length > 2 4176 and then Argv (1) = '-' 4177 and then Argv (2) = 'm' 4178 and then Argv /= "-margs" 4179 4180 -- Ignore -mieee to avoid spawning an extra gcc in this case 4181 4182 and then Argv /= "-mieee" 4183 then 4184 Arg_Index := Arg_Index + 1; 4185 Args (Arg_Index) := new String'(Argv); 4186 end if; 4187 end; 4188 end loop; 4189 4190 pragma Assert (Arg_Index = N_M_Switch); 4191 4192 Args (Args'Last) := new String'("-print-multi-directory"); 4193 4194 -- Call the GCC driver with the collected flags and save its 4195 -- output. Alternate design would be to link in gnatmake the 4196 -- relevant part of the GCC driver. 4197 4198 Multilib_Gcc := Gcc; 4199 4200 Multilib_Gcc_Path := GNAT.OS_Lib.Locate_Exec_On_Path (Multilib_Gcc.all); 4201 4202 Create_Temp_Output_File (Output_FD, Output_Name); 4203 4204 if Output_FD = Invalid_FD then 4205 return; 4206 end if; 4207 4208 GNAT.OS_Lib.Spawn 4209 (Multilib_Gcc_Path.all, Args, Output_FD, Return_Code, False); 4210 Close (Output_FD); 4211 4212 if Return_Code /= 0 then 4213 return; 4214 end if; 4215 4216 -- Parse the GCC driver output which is a single line, removing CR/LF 4217 4218 Output_FD := Open_Read (Output_Name.all, Binary); 4219 4220 if Output_FD = Invalid_FD then 4221 return; 4222 end if; 4223 4224 N_Read := Read (Output_FD, Line (1)'Address, Line'Length); 4225 Close (Output_FD); 4226 Delete_File (Output_Name.all, Success); 4227 4228 for J in reverse 1 .. N_Read loop 4229 if Line (J) = ASCII.CR or else Line (J) = ASCII.LF then 4230 N_Read := N_Read - 1; 4231 else 4232 exit; 4233 end if; 4234 end loop; 4235 4236 -- In case the standard RTS is selected do nothing 4237 4238 if N_Read = 0 or else Line (1 .. N_Read) = "." then 4239 return; 4240 end if; 4241 4242 -- Otherwise add -margs --RTS=output 4243 4244 Scan_Make_Arg ("-margs"); 4245 Scan_Make_Arg ("--RTS=" & Line (1 .. N_Read)); 4246 end Process_Multilib; 4247 4248 ------------------------------- 4249 -- Report_Compilation_Failed -- 4250 ------------------------------- 4251 4252 procedure Report_Compilation_Failed is 4253 begin 4254 Fail_Program (""); 4255 end Report_Compilation_Failed; 4256 4257 ------------------------ 4258 -- Sigint_Intercepted -- 4259 ------------------------ 4260 4261 procedure Sigint_Intercepted is 4262 begin 4263 Set_Standard_Error; 4264 Write_Line ("*** Interrupted ***"); 4265 4266 -- Send SIGINT to all outstanding compilation processes spawned 4267 4268 for J in 1 .. Outstanding_Compiles loop 4269 Kill (Running_Compile (J).Pid, Hard_Kill => False); 4270 end loop; 4271 4272 Finish_Program (E_No_Compile); 4273 end Sigint_Intercepted; 4274 4275 ------------------- 4276 -- Scan_Make_Arg -- 4277 ------------------- 4278 4279 procedure Scan_Make_Arg (Argv : String) is 4280 Success : Boolean; 4281 4282 begin 4283 Gnatmake_Switch_Found := True; 4284 4285 pragma Assert (Argv'First = 1); 4286 4287 if Argv'Length = 0 then 4288 return; 4289 end if; 4290 4291 -- If the previous switch has set the Output_File_Name_Present flag 4292 -- (that is we have seen a -o), then the next argument is the name of 4293 -- the output executable. 4294 4295 if Output_File_Name_Present and then not Output_File_Name_Seen then 4296 Output_File_Name_Seen := True; 4297 4298 if Argv (1) = '-' then 4299 Make_Failed ("output file name missing after -o"); 4300 4301 else 4302 Add_Switch ("-o", Linker); 4303 Add_Switch (Executable_Name (Argv), Linker); 4304 end if; 4305 4306 -- If the previous switch has set the Object_Directory_Present flag 4307 -- (that is we have seen a -D), then the next argument is the path name 4308 -- of the object directory. 4309 4310 elsif Object_Directory_Present 4311 and then not Object_Directory_Seen 4312 then 4313 Object_Directory_Seen := True; 4314 4315 if Argv (1) = '-' then 4316 Make_Failed ("object directory path name missing after -D"); 4317 4318 elsif not Is_Directory (Argv) then 4319 Make_Failed ("cannot find object directory """ & Argv & """"); 4320 4321 else 4322 -- Record the object directory. Make sure it ends with a directory 4323 -- separator. 4324 4325 declare 4326 Norm : constant String := Normalize_Pathname (Argv); 4327 4328 begin 4329 if Norm (Norm'Last) = Directory_Separator then 4330 Object_Directory_Path := new String'(Norm); 4331 else 4332 Object_Directory_Path := 4333 new String'(Norm & Directory_Separator); 4334 end if; 4335 4336 Add_Lib_Search_Dir (Norm); 4337 4338 -- Specify the object directory to the binder 4339 4340 Add_Switch ("-aO" & Norm, Binder); 4341 end; 4342 4343 end if; 4344 4345 -- Then check if we are dealing with -cargs/-bargs/-largs/-margs. These 4346 -- options are taken as is when found in package Compiler, Binder or 4347 -- Linker of the main project file. 4348 4349 elsif Argv = "-bargs" or else 4350 Argv = "-cargs" or else 4351 Argv = "-largs" or else 4352 Argv = "-margs" 4353 then 4354 case Argv (2) is 4355 when 'c' => Program_Args := Compiler; 4356 when 'b' => Program_Args := Binder; 4357 when 'l' => Program_Args := Linker; 4358 when 'm' => Program_Args := None; 4359 4360 when others => 4361 raise Program_Error; 4362 end case; 4363 4364 -- A special test is needed for the -o switch within a -largs since that 4365 -- is another way to specify the name of the final executable. 4366 4367 elsif Program_Args = Linker and then Argv = "-o" then 4368 Make_Failed 4369 ("switch -o not allowed within a -largs. Use -o directly."); 4370 4371 -- Check to see if we are reading switches after a -cargs, -bargs or 4372 -- -largs switch. If so, save it. 4373 4374 elsif Program_Args /= None then 4375 4376 -- Check to see if we are reading -I switches in order to take into 4377 -- account in the src & lib search directories. 4378 4379 if Argv'Length > 2 and then Argv (1 .. 2) = "-I" then 4380 if Argv (3 .. Argv'Last) = "-" then 4381 Look_In_Primary_Dir := False; 4382 4383 elsif Program_Args = Compiler then 4384 Add_Source_Search_Dir (Argv (3 .. Argv'Last)); 4385 4386 elsif Program_Args = Binder then 4387 Add_Library_Search_Dir (Argv (3 .. Argv'Last)); 4388 end if; 4389 end if; 4390 4391 Add_Switch (Argv, Program_Args); 4392 4393 -- Make sure that all significant switches -m on the command line 4394 -- are counted. 4395 4396 if Argv'Length > 2 4397 and then Argv (1 .. 2) = "-m" 4398 and then Argv /= "-mieee" 4399 then 4400 N_M_Switch := N_M_Switch + 1; 4401 end if; 4402 4403 -- Handle non-default compiler, binder, linker, and handle --RTS switch 4404 4405 elsif Argv'Length > 2 and then Argv (1 .. 2) = "--" then 4406 if Argv'Length > 6 4407 and then Argv (1 .. 6) = "--GCC=" 4408 then 4409 declare 4410 Program_Args : constant Argument_List_Access := 4411 Argument_String_To_List 4412 (Argv (7 .. Argv'Last)); 4413 4414 begin 4415 Gcc := new String'(Program_Args.all (1).all); 4416 4417 for J in 2 .. Program_Args.all'Last loop 4418 Add_Switch 4419 (Program_Args.all (J).all, Compiler); 4420 end loop; 4421 end; 4422 4423 elsif Argv'Length > 11 4424 and then Argv (1 .. 11) = "--GNATBIND=" 4425 then 4426 declare 4427 Program_Args : constant Argument_List_Access := 4428 Argument_String_To_List 4429 (Argv (12 .. Argv'Last)); 4430 4431 begin 4432 Gnatbind := new String'(Program_Args.all (1).all); 4433 4434 for J in 2 .. Program_Args.all'Last loop 4435 Add_Switch 4436 (Program_Args.all (J).all, Binder); 4437 end loop; 4438 end; 4439 4440 elsif Argv'Length > 11 4441 and then Argv (1 .. 11) = "--GNATLINK=" 4442 then 4443 declare 4444 Program_Args : constant Argument_List_Access := 4445 Argument_String_To_List 4446 (Argv (12 .. Argv'Last)); 4447 begin 4448 Gnatlink := new String'(Program_Args.all (1).all); 4449 4450 for J in 2 .. Program_Args.all'Last loop 4451 Add_Switch (Program_Args.all (J).all, Linker); 4452 end loop; 4453 end; 4454 4455 elsif Argv'Length >= 5 and then 4456 Argv (1 .. 5) = "--RTS" 4457 then 4458 Add_Switch (Argv, Compiler); 4459 Add_Switch (Argv, Binder); 4460 4461 if Argv'Length <= 6 or else Argv (6) /= '=' then 4462 Make_Failed ("missing path for --RTS"); 4463 4464 else 4465 -- Check that this is the first time we see this switch or 4466 -- if it is not the first time, the same path is specified. 4467 4468 if RTS_Specified = null then 4469 RTS_Specified := new String'(Argv (7 .. Argv'Last)); 4470 4471 elsif RTS_Specified.all /= Argv (7 .. Argv'Last) then 4472 Make_Failed ("--RTS cannot be specified multiple times"); 4473 end if; 4474 4475 -- Valid --RTS switch 4476 4477 No_Stdinc := True; 4478 No_Stdlib := True; 4479 RTS_Switch := True; 4480 4481 declare 4482 Src_Path_Name : constant String_Ptr := 4483 Get_RTS_Search_Dir 4484 (Argv (7 .. Argv'Last), Include); 4485 4486 Lib_Path_Name : constant String_Ptr := 4487 Get_RTS_Search_Dir 4488 (Argv (7 .. Argv'Last), Objects); 4489 4490 begin 4491 if Src_Path_Name /= null 4492 and then Lib_Path_Name /= null 4493 then 4494 -- Set RTS_*_Path_Name variables, so that correct direct- 4495 -- ories will be set when Osint.Add_Default_Search_Dirs 4496 -- is called later. 4497 4498 RTS_Src_Path_Name := Src_Path_Name; 4499 RTS_Lib_Path_Name := Lib_Path_Name; 4500 4501 elsif Src_Path_Name = null 4502 and then Lib_Path_Name = null 4503 then 4504 Make_Failed 4505 ("RTS path not valid: missing adainclude and adalib " 4506 & "directories"); 4507 4508 elsif Src_Path_Name = null then 4509 Make_Failed 4510 ("RTS path not valid: missing adainclude directory"); 4511 4512 elsif Lib_Path_Name = null then 4513 Make_Failed 4514 ("RTS path not valid: missing adalib directory"); 4515 end if; 4516 end; 4517 end if; 4518 4519 elsif Argv'Length >= 8 and then Argv (1 .. 8) = "--param=" then 4520 Add_Switch (Argv, Compiler); 4521 Add_Switch (Argv, Linker); 4522 4523 elsif Argv = Create_Map_File_Switch then 4524 Map_File := new String'(""); 4525 4526 elsif Argv'Length > Create_Map_File_Switch'Length + 1 4527 and then 4528 Argv (1 .. Create_Map_File_Switch'Length) = Create_Map_File_Switch 4529 and then 4530 Argv (Create_Map_File_Switch'Length + 1) = '=' 4531 then 4532 Map_File := 4533 new String' 4534 (Argv (Create_Map_File_Switch'Length + 2 .. Argv'Last)); 4535 4536 else 4537 Scan_Make_Switches (Argv, Success); 4538 end if; 4539 4540 -- If we have seen a regular switch process it 4541 4542 elsif Argv (1) = '-' then 4543 if Argv'Length = 1 then 4544 Make_Failed ("switch character cannot be followed by a blank"); 4545 4546 -- Incorrect switches that should start with "--" 4547 4548 elsif (Argv'Length > 5 and then Argv (1 .. 5) = "-RTS=") 4549 or else (Argv'Length > 5 and then Argv (1 .. 5) = "-GCC=") 4550 or else (Argv'Length > 8 and then Argv (1 .. 7) = "-param=") 4551 or else (Argv'Length > 10 and then Argv (1 .. 10) = "-GNATLINK=") 4552 or else (Argv'Length > 10 and then Argv (1 .. 10) = "-GNATBIND=") 4553 then 4554 Make_Failed ("option " & Argv & " should start with '--'"); 4555 4556 -- -I- 4557 4558 elsif Argv (2 .. Argv'Last) = "I-" then 4559 Look_In_Primary_Dir := False; 4560 4561 -- Forbid -?- or -??- where ? is any character 4562 4563 elsif (Argv'Length = 3 and then Argv (3) = '-') 4564 or else (Argv'Length = 4 and then Argv (4) = '-') 4565 then 4566 Make_Failed 4567 ("trailing ""-"" at the end of " & Argv & " forbidden."); 4568 4569 -- -Idir 4570 4571 elsif Argv (2) = 'I' then 4572 Add_Source_Search_Dir (Argv (3 .. Argv'Last)); 4573 Add_Library_Search_Dir (Argv (3 .. Argv'Last)); 4574 Add_Switch (Argv, Compiler); 4575 Add_Switch (Argv, Binder); 4576 4577 -- -aIdir (to gcc this is like a -I switch) 4578 4579 elsif Argv'Length >= 3 and then Argv (2 .. 3) = "aI" then 4580 Add_Source_Search_Dir (Argv (4 .. Argv'Last)); 4581 Add_Switch 4582 ("-I" & Argv (4 .. Argv'Last), Compiler); 4583 Add_Switch (Argv, Binder); 4584 4585 -- -aOdir 4586 4587 elsif Argv'Length >= 3 and then Argv (2 .. 3) = "aO" then 4588 Add_Library_Search_Dir (Argv (4 .. Argv'Last)); 4589 Add_Switch (Argv, Binder); 4590 4591 -- -aLdir (to gnatbind this is like a -aO switch) 4592 4593 elsif Argv'Length >= 3 and then Argv (2 .. 3) = "aL" then 4594 Mark_Directory (Argv (4 .. Argv'Last), Ada_Lib_Dir); 4595 Add_Library_Search_Dir (Argv (4 .. Argv'Last)); 4596 Add_Switch 4597 ("-aO" & Argv (4 .. Argv'Last), Binder); 4598 4599 -- -aamp_target=... 4600 4601 elsif Argv'Length >= 13 and then Argv (2 .. 13) = "aamp_target=" then 4602 Add_Switch (Argv, Compiler); 4603 4604 -- Set the aamp_target environment variable so that the binder and 4605 -- linker will use the proper target library. This is consistent 4606 -- with how things work when -aamp_target is passed on the command 4607 -- line to gnaampmake. 4608 4609 Setenv ("aamp_target", Argv (14 .. Argv'Last)); 4610 4611 -- -Adir (to gnatbind this is like a -aO switch, to gcc like a -I) 4612 4613 elsif Argv (2) = 'A' then 4614 Mark_Directory (Argv (3 .. Argv'Last), Ada_Lib_Dir); 4615 Add_Source_Search_Dir (Argv (3 .. Argv'Last)); 4616 Add_Library_Search_Dir (Argv (3 .. Argv'Last)); 4617 Add_Switch ("-I" & Argv (3 .. Argv'Last), Compiler); 4618 Add_Switch ("-aO" & Argv (3 .. Argv'Last), Binder); 4619 4620 -- -Ldir 4621 4622 elsif Argv (2) = 'L' then 4623 Add_Switch (Argv, Linker); 4624 4625 -- For -gxxx, -pg, -mxxx, -fxxx, -Oxxx, pass the switch to both the 4626 -- compiler and the linker (except for -gnatxxx which is only for the 4627 -- compiler). Some of the -mxxx (for example -m64) and -fxxx (for 4628 -- example -ftest-coverage for gcov) need to be used when compiling 4629 -- the binder generated files, and using all these gcc switches for 4630 -- them should not be a problem. Pass -Oxxx to the linker for LTO. 4631 4632 elsif 4633 (Argv (2) = 'g' and then (Argv'Last < 5 4634 or else Argv (2 .. 5) /= "gnat")) 4635 or else Argv (2 .. Argv'Last) = "pg" 4636 or else (Argv (2) = 'm' and then Argv'Last > 2) 4637 or else (Argv (2) = 'f' and then Argv'Last > 2) 4638 or else Argv (2) = 'O' 4639 then 4640 Add_Switch (Argv, Compiler); 4641 Add_Switch (Argv, Linker); 4642 4643 -- The following condition has to be kept synchronized with 4644 -- the Process_Multilib one. 4645 4646 if Argv (2) = 'm' 4647 and then Argv /= "-mieee" 4648 then 4649 N_M_Switch := N_M_Switch + 1; 4650 end if; 4651 4652 -- -C=<mapping file> 4653 4654 elsif Argv'Last > 2 and then Argv (2) = 'C' then 4655 if Argv (3) /= '=' or else Argv'Last <= 3 then 4656 Make_Failed ("illegal switch " & Argv); 4657 end if; 4658 4659 Gnatmake_Mapping_File := new String'(Argv (4 .. Argv'Last)); 4660 4661 -- -D 4662 4663 elsif Argv'Last = 2 and then Argv (2) = 'D' then 4664 if Project_File_Name /= null then 4665 Make_Failed 4666 ("-D cannot be used in conjunction with a project file"); 4667 4668 else 4669 Scan_Make_Switches (Argv, Success); 4670 end if; 4671 4672 -- -d 4673 4674 elsif Argv (2) = 'd' and then Argv'Last = 2 then 4675 Display_Compilation_Progress := True; 4676 4677 -- -i 4678 4679 elsif Argv'Last = 2 and then Argv (2) = 'i' then 4680 if Project_File_Name /= null then 4681 Make_Failed 4682 ("-i cannot be used in conjunction with a project file"); 4683 else 4684 Scan_Make_Switches (Argv, Success); 4685 end if; 4686 4687 -- -j (need to save the result) 4688 4689 elsif Argv (2) = 'j' then 4690 Scan_Make_Switches (Argv, Success); 4691 4692 -- -m 4693 4694 elsif Argv (2) = 'm' then 4695 pragma Assert (Argv'Last = 2); 4696 Minimal_Recompilation := True; 4697 4698 -- -u 4699 4700 elsif Argv (2) = 'u' and then Argv'Last = 2 then 4701 Unique_Compile := True; 4702 Compile_Only := True; 4703 Do_Bind_Step := False; 4704 Do_Link_Step := False; 4705 4706 -- -U 4707 4708 elsif Argv (2) = 'U' 4709 and then Argv'Last = 2 4710 then 4711 Unique_Compile := True; 4712 Compile_Only := True; 4713 Do_Bind_Step := False; 4714 Do_Link_Step := False; 4715 4716 -- -Pprj or -P prj (only once, and only on the command line) 4717 4718 elsif Argv (2) = 'P' then 4719 if Project_File_Name /= null then 4720 Make_Failed ("cannot have several project files specified"); 4721 4722 elsif Object_Directory_Path /= null then 4723 Make_Failed 4724 ("-D cannot be used in conjunction with a project file"); 4725 4726 elsif In_Place_Mode then 4727 Make_Failed 4728 ("-i cannot be used in conjunction with a project file"); 4729 4730 elsif Argv'Last = 2 then 4731 4732 -- -P is used alone: the project file name is the next option 4733 4734 Project_File_Name_Present := True; 4735 4736 else 4737 Project_File_Name := new String'(Argv (3 .. Argv'Last)); 4738 end if; 4739 4740 -- -vPx (verbosity of the parsing of the project files) 4741 4742 elsif Argv'Length >= 3 and then Argv (2 .. 3) = "vP" then 4743 if Argv'Last /= 4 or else Argv (4) not in '0' .. '2' then 4744 Make_Failed 4745 ("invalid verbosity level " & Argv (4 .. Argv'Last)); 4746 end if; 4747 4748 -- -Xext=val (External assignment) 4749 4750 elsif Argv (2) = 'X' then 4751 null; 4752 4753 -- If -gnath is present, then generate the usage information right 4754 -- now and do not pass this option on to the compiler calls. 4755 4756 elsif Argv = "-gnath" then 4757 Usage; 4758 4759 -- If -gnatc is specified, make sure the bind and link steps are not 4760 -- executed. 4761 4762 elsif Argv'Length >= 6 and then Argv (2 .. 6) = "gnatc" then 4763 4764 -- If -gnatc is specified, make sure the bind and link steps are 4765 -- not executed. 4766 4767 Add_Switch (Argv, Compiler); 4768 Operating_Mode := Check_Semantics; 4769 Check_Object_Consistency := False; 4770 4771 -- Except in CodePeer mode (set by -gnatcC), where we do want to 4772 -- call bind/link in CodePeer mode (-P switch). 4773 4774 if Argv'Last >= 7 and then Argv (7) = 'C' then 4775 CodePeer_Mode := True; 4776 else 4777 Compile_Only := True; 4778 Do_Bind_Step := False; 4779 Do_Link_Step := False; 4780 end if; 4781 4782 -- If -gnatA is specified, make sure that gnat.adc is never read 4783 4784 elsif Argv'Length >= 6 and then Argv (2 .. 6) = "gnatA" then 4785 Add_Switch (Argv, Compiler); 4786 Opt.Config_File := False; 4787 4788 elsif Argv (2 .. Argv'Last) = "nostdlib" then 4789 4790 -- Pass -nstdlib to gnatbind and gnatlink 4791 4792 No_Stdlib := True; 4793 Add_Switch (Argv, Binder); 4794 Add_Switch (Argv, Linker); 4795 4796 elsif Argv (2 .. Argv'Last) = "nostdinc" then 4797 4798 -- Pass -nostdinc to the Compiler and to gnatbind 4799 4800 No_Stdinc := True; 4801 Add_Switch (Argv, Compiler); 4802 Add_Switch (Argv, Binder); 4803 4804 -- All other switches are processed by Scan_Make_Switches. If the 4805 -- call returns with Gnatmake_Switch_Found = False, then the switch 4806 -- is passed to the compiler. 4807 4808 else 4809 Scan_Make_Switches (Argv, Gnatmake_Switch_Found); 4810 4811 if not Gnatmake_Switch_Found then 4812 Add_Switch (Argv, Compiler); 4813 end if; 4814 end if; 4815 4816 -- If not a switch it must be a file name 4817 4818 else 4819 Main_On_Command_Line := True; 4820 4821 Add_File (Argv); 4822 Mains.Add_Main (Argv); 4823 end if; 4824 end Scan_Make_Arg; 4825 4826 ----------- 4827 -- Usage -- 4828 ----------- 4829 4830 procedure Usage is 4831 begin 4832 if Usage_Needed then 4833 Usage_Needed := False; 4834 Makeusg; 4835 end if; 4836 end Usage; 4837 4838end Make; 4839