1------------------------------------------------------------------------------ 2-- -- 3-- GNAT COMPILER COMPONENTS -- 4-- -- 5-- B I N D G E N -- 6-- -- 7-- B o d y -- 8-- -- 9-- Copyright (C) 1992-2018, 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 Casing; use Casing; 28with Fname; use Fname; 29with Gnatvsn; use Gnatvsn; 30with Hostparm; 31with Namet; use Namet; 32with Opt; use Opt; 33with Osint; use Osint; 34with Osint.B; use Osint.B; 35with Output; use Output; 36with Rident; use Rident; 37with Stringt; use Stringt; 38with Table; 39with Targparm; use Targparm; 40with Types; use Types; 41 42with System.OS_Lib; 43with System.WCh_Con; use System.WCh_Con; 44 45with GNAT.Heap_Sort_A; use GNAT.Heap_Sort_A; 46with GNAT.HTable; 47 48package body Bindgen is 49 Statement_Buffer : String (1 .. 1000); 50 -- Buffer used for constructing output statements 51 52 Stm_Last : Natural := 0; 53 -- Stm_Last location in Statement_Buffer currently set 54 55 With_GNARL : Boolean := False; 56 -- Flag which indicates whether the program uses the GNARL library 57 -- (presence of the unit System.OS_Interface) 58 59 Num_Elab_Calls : Nat := 0; 60 -- Number of generated calls to elaboration routines 61 62 Num_Primary_Stacks : Int := 0; 63 -- Number of default-sized primary stacks the binder needs to allocate for 64 -- task objects declared in the program. 65 66 Num_Sec_Stacks : Int := 0; 67 -- Number of default-sized primary stacks the binder needs to allocate for 68 -- task objects declared in the program. 69 70 System_Restrictions_Used : Boolean := False; 71 -- Flag indicating whether the unit System.Restrictions is in the closure 72 -- of the partition. This is set by Resolve_Binder_Options, and is used 73 -- to determine whether or not to initialize the restrictions information 74 -- in the body of the binder generated file (we do not want to do this 75 -- unconditionally, since it drags in the System.Restrictions unit 76 -- unconditionally, which is unpleasand, especially for ZFP etc.) 77 78 Dispatching_Domains_Used : Boolean := False; 79 -- Flag indicating whether multiprocessor dispatching domains are used in 80 -- the closure of the partition. This is set by Resolve_Binder_Options, and 81 -- is used to call the routine to disallow the creation of new dispatching 82 -- domains just before calling the main procedure from the environment 83 -- task. 84 85 System_Secondary_Stack_Used : Boolean := False; 86 -- Flag indicating whether the unit System.Secondary_Stack is in the 87 -- closure of the partition. This is set by Resolve_Binder_Options, and 88 -- is used to initialize the package in cases where the run-time brings 89 -- in package but the secondary stack is not used. 90 91 System_Tasking_Restricted_Stages_Used : Boolean := False; 92 -- Flag indicating whether the unit System.Tasking.Restricted.Stages is in 93 -- the closure of the partition. This is set by Resolve_Binder_Options, 94 -- and it used to call a routine to active all the tasks at the end of 95 -- the elaboration when partition elaboration policy is sequential. 96 97 System_Interrupts_Used : Boolean := False; 98 -- Flag indicating whether the unit System.Interrups is in the closure of 99 -- the partition. This is set by Resolve_Binder_Options, and it used to 100 -- attach interrupt handlers at the end of the elaboration when partition 101 -- elaboration policy is sequential. 102 103 System_BB_CPU_Primitives_Multiprocessors_Used : Boolean := False; 104 -- Flag indicating whether unit System.BB.CPU_Primitives.Multiprocessors 105 -- is in the closure of the partition. This is set by procedure 106 -- Resolve_Binder_Options, and it is used to call a procedure that starts 107 -- slave processors. 108 109 System_Version_Control_Used : Boolean := False; 110 -- Flag indicating whether unit System.Version_Control is in the closure. 111 -- This unit is implicitly withed by the compiler when Version or 112 -- Body_Version attributes are used. If the package is not in the closure, 113 -- the version definitions can be removed. 114 115 Lib_Final_Built : Boolean := False; 116 -- Flag indicating whether the finalize_library rountine has been built 117 118 Bind_Env_String_Built : Boolean := False; 119 -- Flag indicating whether a bind environment string has been built 120 121 CodePeer_Wrapper_Name : constant String := "call_main_subprogram"; 122 -- For CodePeer, introduce a wrapper subprogram which calls the 123 -- user-defined main subprogram. 124 125 ---------------------------------- 126 -- Interface_State Pragma Table -- 127 ---------------------------------- 128 129 -- This table assembles the interface state pragma information from 130 -- all the units in the partition. Note that Bcheck has already checked 131 -- that the information is consistent across units. The entries 132 -- in this table are n/u/r/s for not set/user/runtime/system. 133 134 package IS_Pragma_Settings is new Table.Table 135 (Table_Component_Type => Character, 136 Table_Index_Type => Int, 137 Table_Low_Bound => 0, 138 Table_Initial => 100, 139 Table_Increment => 200, 140 Table_Name => "IS_Pragma_Settings"); 141 142 -- This table assembles the Priority_Specific_Dispatching pragma 143 -- information from all the units in the partition. Note that Bcheck has 144 -- already checked that the information is consistent across units. 145 -- The entries in this table are the upper case first character of the 146 -- policy name, e.g. 'F' for FIFO_Within_Priorities. 147 148 package PSD_Pragma_Settings is new Table.Table 149 (Table_Component_Type => Character, 150 Table_Index_Type => Int, 151 Table_Low_Bound => 0, 152 Table_Initial => 100, 153 Table_Increment => 200, 154 Table_Name => "PSD_Pragma_Settings"); 155 156 ---------------------------- 157 -- Bind_Environment Table -- 158 ---------------------------- 159 160 subtype Header_Num is Int range 0 .. 36; 161 162 function Hash (Nam : Name_Id) return Header_Num; 163 164 package Bind_Environment is new GNAT.HTable.Simple_HTable 165 (Header_Num => Header_Num, 166 Element => Name_Id, 167 No_Element => No_Name, 168 Key => Name_Id, 169 Hash => Hash, 170 Equal => "="); 171 172 ---------------------- 173 -- Run-Time Globals -- 174 ---------------------- 175 176 -- This section documents the global variables that are set from the 177 -- generated binder file. 178 179 -- Main_Priority : Integer; 180 -- Time_Slice_Value : Integer; 181 -- Heap_Size : Natural; 182 -- WC_Encoding : Character; 183 -- Locking_Policy : Character; 184 -- Queuing_Policy : Character; 185 -- Task_Dispatching_Policy : Character; 186 -- Priority_Specific_Dispatching : System.Address; 187 -- Num_Specific_Dispatching : Integer; 188 -- Restrictions : System.Address; 189 -- Interrupt_States : System.Address; 190 -- Num_Interrupt_States : Integer; 191 -- Unreserve_All_Interrupts : Integer; 192 -- Exception_Tracebacks : Integer; 193 -- Exception_Tracebacks_Symbolic : Integer; 194 -- Detect_Blocking : Integer; 195 -- Default_Stack_Size : Integer; 196 -- Default_Secondary_Stack_Size : System.Parameters.Size_Type; 197 -- Leap_Seconds_Support : Integer; 198 -- Main_CPU : Integer; 199 -- Default_Sized_SS_Pool : System.Address; 200 -- Binder_Sec_Stacks_Count : Natural; 201 202 -- Main_Priority is the priority value set by pragma Priority in the main 203 -- program. If no such pragma is present, the value is -1. 204 205 -- Time_Slice_Value is the time slice value set by pragma Time_Slice in the 206 -- main program, or by the use of a -Tnnn parameter for the binder (if both 207 -- are present, the binder value overrides). The value is in milliseconds. 208 -- A value of zero indicates that time slicing should be suppressed. If no 209 -- pragma is present, and no -T switch was used, the value is -1. 210 211 -- WC_Encoding shows the wide character encoding method used for the main 212 -- program. This is one of the encoding letters defined in 213 -- System.WCh_Con.WC_Encoding_Letters. 214 215 -- Locking_Policy is a space if no locking policy was specified for the 216 -- partition. If a locking policy was specified, the value is the upper 217 -- case first character of the locking policy name, for example, 'C' for 218 -- Ceiling_Locking. 219 220 -- Queuing_Policy is a space if no queuing policy was specified for the 221 -- partition. If a queuing policy was specified, the value is the upper 222 -- case first character of the queuing policy name for example, 'F' for 223 -- FIFO_Queuing. 224 225 -- Task_Dispatching_Policy is a space if no task dispatching policy was 226 -- specified for the partition. If a task dispatching policy was specified, 227 -- the value is the upper case first character of the policy name, e.g. 'F' 228 -- for FIFO_Within_Priorities. 229 230 -- Priority_Specific_Dispatching is the address of a string used to store 231 -- the task dispatching policy specified for the different priorities in 232 -- the partition. The length of this string is determined by the last 233 -- priority for which such a pragma applies (the string will be a null 234 -- string if no specific dispatching policies were used). If pragma were 235 -- present, the entries apply to the priorities in sequence from the first 236 -- priority. The value stored is the upper case first character of the 237 -- policy name, or 'F' (for FIFO_Within_Priorities) as the default value 238 -- for those priority ranges not specified. 239 240 -- Num_Specific_Dispatching is length of the Priority_Specific_Dispatching 241 -- string. It will be set to zero if no Priority_Specific_Dispatching 242 -- pragmas are present. 243 244 -- Restrictions is the address of a null-terminated string specifying the 245 -- restrictions information for the partition. The format is identical to 246 -- that of the parameter string found on R lines in ali files (see Lib.Writ 247 -- spec in lib-writ.ads for full details). The difference is that in this 248 -- context the values are the cumulative ones for the entire partition. 249 250 -- Interrupt_States is the address of a string used to specify the 251 -- cumulative results of Interrupt_State pragmas used in the partition. 252 -- The length of this string is determined by the last interrupt for which 253 -- such a pragma is given (the string will be a null string if no pragmas 254 -- were used). If pragma were present the entries apply to the interrupts 255 -- in sequence from the first interrupt, and are set to one of four 256 -- possible settings: 'n' for not specified, 'u' for user, 'r' for run 257 -- time, 's' for system, see description of Interrupt_State pragma for 258 -- further details. 259 260 -- Num_Interrupt_States is the length of the Interrupt_States string. It 261 -- will be set to zero if no Interrupt_State pragmas are present. 262 263 -- Unreserve_All_Interrupts is set to one if at least one unit in the 264 -- partition had a pragma Unreserve_All_Interrupts, and zero otherwise. 265 266 -- Exception_Tracebacks is set to one if the -Ea or -E parameter was 267 -- present in the bind and to zero otherwise. Note that on some targets 268 -- exception tracebacks are provided by default, so a value of zero for 269 -- this parameter does not necessarily mean no trace backs are available. 270 271 -- Exception_Tracebacks_Symbolic is set to one if the -Es parameter was 272 -- present in the bind and to zero otherwise. 273 274 -- Detect_Blocking indicates whether pragma Detect_Blocking is active or 275 -- not. A value of zero indicates that the pragma is not present, while a 276 -- value of 1 signals its presence in the partition. 277 278 -- Default_Stack_Size is the default stack size used when creating an Ada 279 -- task with no explicit Storage_Size clause. 280 281 -- Default_Secondary_Stack_Size is the default secondary stack size used 282 -- when creating an Ada task with no explicit Secondary_Stack_Size clause. 283 284 -- Leap_Seconds_Support denotes whether leap seconds have been enabled or 285 -- disabled. A value of zero indicates that leap seconds are turned "off", 286 -- while a value of one signifies "on" status. 287 288 -- Main_CPU is the processor set by pragma CPU in the main program. If no 289 -- such pragma is present, the value is -1. 290 291 -- Default_Sized_SS_Pool is set to the address of the default-sized 292 -- secondary stacks array generated by the binder. This pool of stacks is 293 -- generated when either the restriction No_Implicit_Heap_Allocations 294 -- or No_Implicit_Task_Allocations is active. 295 296 -- Binder_Sec_Stacks_Count is the number of generated secondary stacks in 297 -- the Default_Sized_SS_Pool. 298 299 procedure WBI (Info : String) renames Osint.B.Write_Binder_Info; 300 -- Convenient shorthand used throughout 301 302 ----------------------- 303 -- Local Subprograms -- 304 ----------------------- 305 306 procedure Gen_Adainit (Elab_Order : Unit_Id_Array); 307 -- Generates the Adainit procedure 308 309 procedure Gen_Adafinal; 310 -- Generate the Adafinal procedure 311 312 procedure Gen_Bind_Env_String; 313 -- Generate the bind environment buffer 314 315 procedure Gen_CodePeer_Wrapper; 316 -- For CodePeer, generate wrapper which calls user-defined main subprogram 317 318 procedure Gen_Elab_Calls (Elab_Order : Unit_Id_Array); 319 -- Generate sequence of elaboration calls 320 321 procedure Gen_Elab_Externals (Elab_Order : Unit_Id_Array); 322 -- Generate sequence of external declarations for elaboration 323 324 procedure Gen_Elab_Order (Elab_Order : Unit_Id_Array); 325 -- Generate comments showing elaboration order chosen 326 327 procedure Gen_Finalize_Library (Elab_Order : Unit_Id_Array); 328 -- Generate a sequence of finalization calls to elaborated packages 329 330 procedure Gen_Main; 331 -- Generate procedure main 332 333 procedure Gen_Object_Files_Options (Elab_Order : Unit_Id_Array); 334 -- Output comments containing a list of the full names of the object 335 -- files to be linked and the list of linker options supplied by 336 -- Linker_Options pragmas in the source. 337 338 procedure Gen_Output_File_Ada 339 (Filename : String; 340 Elab_Order : Unit_Id_Array); 341 -- Generate Ada output file 342 343 procedure Gen_Restrictions; 344 -- Generate initialization of restrictions variable 345 346 procedure Gen_Versions; 347 -- Output series of definitions for unit versions 348 349 function Get_Ada_Main_Name return String; 350 -- This function is used for the Ada main output to compute a usable name 351 -- for the generated main program. The normal main program name is 352 -- Ada_Main, but this won't work if the user has a unit with this name. 353 -- This function tries Ada_Main first, and if there is such a clash, then 354 -- it tries Ada_Name_01, Ada_Name_02 ... Ada_Name_99 in sequence. 355 356 function Get_Main_Unit_Name (S : String) return String; 357 -- Return the main unit name corresponding to S by replacing '.' with '_' 358 359 function Get_Main_Name return String; 360 -- This function is used in the main output case to compute the correct 361 -- external main program. It is "main" by default, unless the flag 362 -- Use_Ada_Main_Program_Name_On_Target is set, in which case it is the name 363 -- of the Ada main name without the "_ada". This default can be overridden 364 -- explicitly using the -Mname binder switch. 365 366 function Get_WC_Encoding return Character; 367 -- Return wide character encoding method to set as WC_Encoding in output. 368 -- If -W has been used, returns the specified encoding, otherwise returns 369 -- the encoding method used for the main program source. If there is no 370 -- main program source (-z switch used), returns brackets ('b'). 371 372 function Has_Finalizer (Elab_Order : Unit_Id_Array) return Boolean; 373 -- Determine whether the current unit has at least one library-level 374 -- finalizer. 375 376 function Lt_Linker_Option (Op1 : Natural; Op2 : Natural) return Boolean; 377 -- Compare linker options, when sorting, first according to 378 -- Is_Internal_File (internal files come later) and then by 379 -- elaboration order position (latest to earliest). 380 381 procedure Move_Linker_Option (From : Natural; To : Natural); 382 -- Move routine for sorting linker options 383 384 procedure Resolve_Binder_Options (Elab_Order : Unit_Id_Array); 385 -- Set the value of With_GNARL 386 387 procedure Set_Char (C : Character); 388 -- Set given character in Statement_Buffer at the Stm_Last + 1 position 389 -- and increment Stm_Last by one to reflect the stored character. 390 391 procedure Set_Int (N : Int); 392 -- Set given value in decimal in Statement_Buffer with no spaces starting 393 -- at the Stm_Last + 1 position, and updating Stm_Last past the value. A 394 -- minus sign is output for a negative value. 395 396 procedure Set_Boolean (B : Boolean); 397 -- Set given boolean value in Statement_Buffer at the Stm_Last + 1 position 398 -- and update Stm_Last past the value. 399 400 procedure Set_IS_Pragma_Table; 401 -- Initializes contents of IS_Pragma_Settings table from ALI table 402 403 procedure Set_Main_Program_Name; 404 -- Given the main program name in Name_Buffer (length in Name_Len) generate 405 -- the name of the routine to be used in the call. The name is generated 406 -- starting at Stm_Last + 1, and Stm_Last is updated past it. 407 408 procedure Set_Name_Buffer; 409 -- Set the value stored in positions 1 .. Name_Len of the Name_Buffer 410 411 procedure Set_PSD_Pragma_Table; 412 -- Initializes contents of PSD_Pragma_Settings table from ALI table 413 414 procedure Set_String (S : String); 415 -- Sets characters of given string in Statement_Buffer, starting at the 416 -- Stm_Last + 1 position, and updating last past the string value. 417 418 procedure Set_String_Replace (S : String); 419 -- Replaces the last S'Length characters in the Statement_Buffer with the 420 -- characters of S. The caller must ensure that these characters do in fact 421 -- exist in the Statement_Buffer. 422 423 procedure Set_Unit_Name; 424 -- Given a unit name in the Name_Buffer, copy it into Statement_Buffer, 425 -- starting at the Stm_Last + 1 position and update Stm_Last past the 426 -- value. Each dot (.) will be qualified into double underscores (__). 427 428 procedure Set_Unit_Number (U : Unit_Id); 429 -- Sets unit number (first unit is 1, leading zeroes output to line up all 430 -- output unit numbers nicely as required by the value, and by the total 431 -- number of units. 432 433 procedure Write_Statement_Buffer; 434 -- Write out contents of statement buffer up to Stm_Last, and reset 435 -- Stm_Last to 0. 436 437 procedure Write_Statement_Buffer (S : String); 438 -- First writes its argument (using Set_String (S)), then writes out the 439 -- contents of statement buffer up to Stm_Last, and resets Stm_Last to 0. 440 441 procedure Write_Bind_Line (S : String); 442 -- Write S (an LF-terminated string) to the binder file (for use with 443 -- Set_Special_Output). 444 445 ------------------ 446 -- Gen_Adafinal -- 447 ------------------ 448 449 procedure Gen_Adafinal is 450 begin 451 WBI (" procedure " & Ada_Final_Name.all & " is"); 452 453 -- Call s_stalib_adafinal to await termination of tasks and so on. We 454 -- want to do this if there is a main program, either in Ada or in some 455 -- other language. (Note that Bind_Main_Program is True for Ada mains, 456 -- but False for mains in other languages.) We do not want to do this if 457 -- we're binding a library. 458 459 if not Bind_For_Library and not CodePeer_Mode then 460 WBI (" procedure s_stalib_adafinal;"); 461 Set_String (" pragma Import (C, s_stalib_adafinal, "); 462 Set_String ("""system__standard_library__adafinal"");"); 463 Write_Statement_Buffer; 464 end if; 465 466 WBI (""); 467 WBI (" procedure Runtime_Finalize;"); 468 WBI (" pragma Import (C, Runtime_Finalize, " & 469 """__gnat_runtime_finalize"");"); 470 WBI (""); 471 WBI (" begin"); 472 473 if not CodePeer_Mode then 474 WBI (" if not Is_Elaborated then"); 475 WBI (" return;"); 476 WBI (" end if;"); 477 WBI (" Is_Elaborated := False;"); 478 end if; 479 480 WBI (" Runtime_Finalize;"); 481 482 -- By default (real targets), finalization is done differently depending 483 -- on whether this is the main program or a library. 484 485 if not CodePeer_Mode then 486 if not Bind_For_Library then 487 WBI (" s_stalib_adafinal;"); 488 elsif Lib_Final_Built then 489 WBI (" finalize_library;"); 490 else 491 WBI (" null;"); 492 end if; 493 494 -- Pragma Import C cannot be used on virtual targets, therefore call the 495 -- runtime finalization routine directly in CodePeer mode, where 496 -- imported functions are ignored. 497 498 else 499 WBI (" System.Standard_Library.Adafinal;"); 500 end if; 501 502 WBI (" end " & Ada_Final_Name.all & ";"); 503 WBI (""); 504 end Gen_Adafinal; 505 506 ----------------- 507 -- Gen_Adainit -- 508 ----------------- 509 510 procedure Gen_Adainit (Elab_Order : Unit_Id_Array) is 511 Main_Priority : Int renames ALIs.Table (ALIs.First).Main_Priority; 512 Main_CPU : Int renames ALIs.Table (ALIs.First).Main_CPU; 513 514 begin 515 -- Declare the access-to-subprogram type used for initialization of 516 -- of __gnat_finalize_library_objects. This is declared at library 517 -- level for compatibility with the type used in System.Soft_Links. 518 -- The import of the soft link which performs library-level object 519 -- finalization does not work for CodePeer, so regular Ada is used in 520 -- that case. For restricted run-time libraries (ZFP and Ravenscar) 521 -- tasks are non-terminating, so we do not want finalization. 522 523 if not Suppress_Standard_Library_On_Target 524 and then not CodePeer_Mode 525 and then not Configurable_Run_Time_On_Target 526 then 527 WBI (" type No_Param_Proc is access procedure;"); 528 WBI (""); 529 end if; 530 531 WBI (" procedure " & Ada_Init_Name.all & " is"); 532 533 -- In CodePeer mode, simplify adainit procedure by only calling 534 -- elaboration procedures. 535 536 if CodePeer_Mode then 537 WBI (" begin"); 538 539 -- If the standard library is suppressed, then the only global variables 540 -- that might be needed (by the Ravenscar profile) are the priority and 541 -- the processor for the environment task. 542 543 elsif Suppress_Standard_Library_On_Target then 544 if Main_Priority /= No_Main_Priority then 545 WBI (" Main_Priority : Integer;"); 546 WBI (" pragma Import (C, Main_Priority," & 547 " ""__gl_main_priority"");"); 548 WBI (""); 549 end if; 550 551 if Main_CPU /= No_Main_CPU then 552 WBI (" Main_CPU : Integer;"); 553 WBI (" pragma Import (C, Main_CPU," & 554 " ""__gl_main_cpu"");"); 555 WBI (""); 556 end if; 557 558 if System_Interrupts_Used 559 and then Partition_Elaboration_Policy_Specified = 'S' 560 then 561 WBI (" procedure Install_Restricted_Handlers_Sequential;"); 562 WBI (" pragma Import (C," & 563 "Install_Restricted_Handlers_Sequential," & 564 " ""__gnat_attach_all_handlers"");"); 565 WBI (""); 566 end if; 567 568 if System_Tasking_Restricted_Stages_Used 569 and then Partition_Elaboration_Policy_Specified = 'S' 570 then 571 WBI (" Partition_Elaboration_Policy : Character;"); 572 WBI (" pragma Import (C, Partition_Elaboration_Policy," & 573 " ""__gnat_partition_elaboration_policy"");"); 574 WBI (""); 575 WBI (" procedure Activate_All_Tasks_Sequential;"); 576 WBI (" pragma Import (C, Activate_All_Tasks_Sequential," & 577 " ""__gnat_activate_all_tasks"");"); 578 WBI (""); 579 end if; 580 581 if System_BB_CPU_Primitives_Multiprocessors_Used then 582 WBI (" procedure Start_Slave_CPUs;"); 583 WBI (" pragma Import (C, Start_Slave_CPUs," & 584 " ""__gnat_start_slave_cpus"");"); 585 WBI (""); 586 end if; 587 588 -- A restricted run-time may attempt to initialize the main task's 589 -- secondary stack even if the stack is not used. Consequently, 590 -- the binder needs to initialize Binder_Sec_Stacks_Count anytime 591 -- System.Secondary_Stack is in the enclosure of the partition. 592 593 if System_Secondary_Stack_Used then 594 WBI (" Binder_Sec_Stacks_Count : Natural;"); 595 WBI (" pragma Import (Ada, Binder_Sec_Stacks_Count, " & 596 """__gnat_binder_ss_count"");"); 597 WBI (""); 598 end if; 599 600 if Sec_Stack_Used then 601 WBI (" Default_Secondary_Stack_Size : " & 602 "System.Parameters.Size_Type;"); 603 WBI (" pragma Import (C, Default_Secondary_Stack_Size, " & 604 """__gnat_default_ss_size"");"); 605 606 WBI (" Default_Sized_SS_Pool : System.Address;"); 607 WBI (" pragma Import (Ada, Default_Sized_SS_Pool, " & 608 """__gnat_default_ss_pool"");"); 609 610 WBI (""); 611 end if; 612 613 WBI (" begin"); 614 615 if Main_Priority /= No_Main_Priority then 616 Set_String (" Main_Priority := "); 617 Set_Int (Main_Priority); 618 Set_Char (';'); 619 Write_Statement_Buffer; 620 end if; 621 622 if Main_CPU /= No_Main_CPU then 623 Set_String (" Main_CPU := "); 624 Set_Int (Main_CPU); 625 Set_Char (';'); 626 Write_Statement_Buffer; 627 end if; 628 629 if System_Tasking_Restricted_Stages_Used 630 and then Partition_Elaboration_Policy_Specified = 'S' 631 then 632 Set_String (" Partition_Elaboration_Policy := '"); 633 Set_Char (Partition_Elaboration_Policy_Specified); 634 Set_String ("';"); 635 Write_Statement_Buffer; 636 end if; 637 638 if Main_Priority = No_Main_Priority 639 and then Main_CPU = No_Main_CPU 640 and then not System_Tasking_Restricted_Stages_Used 641 then 642 WBI (" null;"); 643 end if; 644 645 -- Generate default-sized secondary stack pool and set secondary 646 -- stack globals. 647 648 if Sec_Stack_Used then 649 650 -- Elaborate the body of the binder to initialize the default- 651 -- sized secondary stack pool. 652 653 WBI (""); 654 WBI (" " & Get_Ada_Main_Name & "'Elab_Body;"); 655 656 -- Generate the default-sized secondary stack pool and set the 657 -- related secondary stack globals. 658 659 Set_String (" Default_Secondary_Stack_Size := "); 660 661 if Opt.Default_Sec_Stack_Size /= Opt.No_Stack_Size then 662 Set_Int (Opt.Default_Sec_Stack_Size); 663 else 664 Set_String ("System.Parameters.Runtime_Default_Sec_Stack_Size"); 665 end if; 666 667 Set_Char (';'); 668 Write_Statement_Buffer; 669 670 Set_String (" Binder_Sec_Stacks_Count := "); 671 Set_Int (Num_Sec_Stacks); 672 Set_Char (';'); 673 Write_Statement_Buffer; 674 675 WBI (" Default_Sized_SS_Pool := " & 676 "Sec_Default_Sized_Stacks'Address;"); 677 WBI (""); 678 679 -- When a restricted run-time initializes the main task's secondary 680 -- stack but the program does not use it, no secondary stack is 681 -- generated. Binder_Sec_Stacks_Count is set to zero so the run-time 682 -- is aware that the lack of pre-allocated secondary stack is 683 -- expected. 684 685 elsif System_Secondary_Stack_Used then 686 WBI (" Binder_Sec_Stacks_Count := 0;"); 687 end if; 688 689 -- Normal case (standard library not suppressed). Set all global values 690 -- used by the run time. 691 692 else 693 WBI (" Main_Priority : Integer;"); 694 WBI (" pragma Import (C, Main_Priority, " & 695 """__gl_main_priority"");"); 696 WBI (" Time_Slice_Value : Integer;"); 697 WBI (" pragma Import (C, Time_Slice_Value, " & 698 """__gl_time_slice_val"");"); 699 WBI (" WC_Encoding : Character;"); 700 WBI (" pragma Import (C, WC_Encoding, ""__gl_wc_encoding"");"); 701 WBI (" Locking_Policy : Character;"); 702 WBI (" pragma Import (C, Locking_Policy, " & 703 """__gl_locking_policy"");"); 704 WBI (" Queuing_Policy : Character;"); 705 WBI (" pragma Import (C, Queuing_Policy, " & 706 """__gl_queuing_policy"");"); 707 WBI (" Task_Dispatching_Policy : Character;"); 708 WBI (" pragma Import (C, Task_Dispatching_Policy, " & 709 """__gl_task_dispatching_policy"");"); 710 WBI (" Priority_Specific_Dispatching : System.Address;"); 711 WBI (" pragma Import (C, Priority_Specific_Dispatching, " & 712 """__gl_priority_specific_dispatching"");"); 713 WBI (" Num_Specific_Dispatching : Integer;"); 714 WBI (" pragma Import (C, Num_Specific_Dispatching, " & 715 """__gl_num_specific_dispatching"");"); 716 WBI (" Main_CPU : Integer;"); 717 WBI (" pragma Import (C, Main_CPU, " & 718 """__gl_main_cpu"");"); 719 720 WBI (" Interrupt_States : System.Address;"); 721 WBI (" pragma Import (C, Interrupt_States, " & 722 """__gl_interrupt_states"");"); 723 WBI (" Num_Interrupt_States : Integer;"); 724 WBI (" pragma Import (C, Num_Interrupt_States, " & 725 """__gl_num_interrupt_states"");"); 726 WBI (" Unreserve_All_Interrupts : Integer;"); 727 WBI (" pragma Import (C, Unreserve_All_Interrupts, " & 728 """__gl_unreserve_all_interrupts"");"); 729 730 if Exception_Tracebacks or Exception_Tracebacks_Symbolic then 731 WBI (" Exception_Tracebacks : Integer;"); 732 WBI (" pragma Import (C, Exception_Tracebacks, " & 733 """__gl_exception_tracebacks"");"); 734 735 if Exception_Tracebacks_Symbolic then 736 WBI (" Exception_Tracebacks_Symbolic : Integer;"); 737 WBI (" pragma Import (C, Exception_Tracebacks_Symbolic, " & 738 """__gl_exception_tracebacks_symbolic"");"); 739 end if; 740 end if; 741 742 WBI (" Detect_Blocking : Integer;"); 743 WBI (" pragma Import (C, Detect_Blocking, " & 744 """__gl_detect_blocking"");"); 745 WBI (" Default_Stack_Size : Integer;"); 746 WBI (" pragma Import (C, Default_Stack_Size, " & 747 """__gl_default_stack_size"");"); 748 WBI (" Default_Secondary_Stack_Size : " & 749 "System.Parameters.Size_Type;"); 750 WBI (" pragma Import (C, Default_Secondary_Stack_Size, " & 751 """__gnat_default_ss_size"");"); 752 WBI (" Leap_Seconds_Support : Integer;"); 753 WBI (" pragma Import (C, Leap_Seconds_Support, " & 754 """__gl_leap_seconds_support"");"); 755 WBI (" Bind_Env_Addr : System.Address;"); 756 WBI (" pragma Import (C, Bind_Env_Addr, " & 757 """__gl_bind_env_addr"");"); 758 759 -- Import entry point for elaboration time signal handler 760 -- installation, and indication of if it's been called previously. 761 762 WBI (""); 763 WBI (" procedure Runtime_Initialize " & 764 "(Install_Handler : Integer);"); 765 WBI (" pragma Import (C, Runtime_Initialize, " & 766 """__gnat_runtime_initialize"");"); 767 768 -- Import handlers attach procedure for sequential elaboration policy 769 770 if System_Interrupts_Used 771 and then Partition_Elaboration_Policy_Specified = 'S' 772 then 773 WBI (" procedure Install_Restricted_Handlers_Sequential;"); 774 WBI (" pragma Import (C," & 775 "Install_Restricted_Handlers_Sequential," & 776 " ""__gnat_attach_all_handlers"");"); 777 WBI (""); 778 end if; 779 780 -- Import task activation procedure for sequential elaboration 781 -- policy. 782 783 if System_Tasking_Restricted_Stages_Used 784 and then Partition_Elaboration_Policy_Specified = 'S' 785 then 786 WBI (" Partition_Elaboration_Policy : Character;"); 787 WBI (" pragma Import (C, Partition_Elaboration_Policy," & 788 " ""__gnat_partition_elaboration_policy"");"); 789 WBI (""); 790 WBI (" procedure Activate_All_Tasks_Sequential;"); 791 WBI (" pragma Import (C, Activate_All_Tasks_Sequential," & 792 " ""__gnat_activate_all_tasks"");"); 793 end if; 794 795 -- Import procedure to start slave cpus for bareboard runtime 796 797 if System_BB_CPU_Primitives_Multiprocessors_Used then 798 WBI (" procedure Start_Slave_CPUs;"); 799 WBI (" pragma Import (C, Start_Slave_CPUs," & 800 " ""__gnat_start_slave_cpus"");"); 801 end if; 802 803 -- For restricted run-time libraries (ZFP and Ravenscar) 804 -- tasks are non-terminating, so we do not want finalization. 805 806 if not Configurable_Run_Time_On_Target then 807 WBI (""); 808 WBI (" Finalize_Library_Objects : No_Param_Proc;"); 809 WBI (" pragma Import (C, Finalize_Library_Objects, " & 810 """__gnat_finalize_library_objects"");"); 811 end if; 812 813 -- Initialize stack limit variable of the environment task if the 814 -- stack check method is stack limit and stack check is enabled. 815 816 if Stack_Check_Limits_On_Target 817 and then (Stack_Check_Default_On_Target or Stack_Check_Switch_Set) 818 then 819 WBI (""); 820 WBI (" procedure Initialize_Stack_Limit;"); 821 WBI (" pragma Import (C, Initialize_Stack_Limit, " & 822 """__gnat_initialize_stack_limit"");"); 823 end if; 824 825 -- When dispatching domains are used then we need to signal it 826 -- before calling the main procedure. 827 828 if Dispatching_Domains_Used then 829 WBI (" procedure Freeze_Dispatching_Domains;"); 830 WBI (" pragma Import"); 831 WBI (" (Ada, Freeze_Dispatching_Domains, " 832 & """__gnat_freeze_dispatching_domains"");"); 833 end if; 834 835 -- Secondary stack global variables 836 837 WBI (" Binder_Sec_Stacks_Count : Natural;"); 838 WBI (" pragma Import (Ada, Binder_Sec_Stacks_Count, " & 839 """__gnat_binder_ss_count"");"); 840 841 WBI (" Default_Sized_SS_Pool : System.Address;"); 842 WBI (" pragma Import (Ada, Default_Sized_SS_Pool, " & 843 """__gnat_default_ss_pool"");"); 844 845 WBI (""); 846 847 -- Start of processing for Adainit 848 849 WBI (" begin"); 850 WBI (" if Is_Elaborated then"); 851 WBI (" return;"); 852 WBI (" end if;"); 853 WBI (" Is_Elaborated := True;"); 854 855 -- Call System.Elaboration_Allocators.Mark_Start_Of_Elaboration if 856 -- restriction No_Standard_Allocators_After_Elaboration is active. 857 858 if Cumulative_Restrictions.Set 859 (No_Standard_Allocators_After_Elaboration) 860 then 861 WBI (" System.Elaboration_Allocators." 862 & "Mark_Start_Of_Elaboration;"); 863 end if; 864 865 -- Generate assignments to initialize globals 866 867 Set_String (" Main_Priority := "); 868 Set_Int (Main_Priority); 869 Set_Char (';'); 870 Write_Statement_Buffer; 871 872 Set_String (" Time_Slice_Value := "); 873 874 if Task_Dispatching_Policy_Specified = 'F' 875 and then ALIs.Table (ALIs.First).Time_Slice_Value = -1 876 then 877 Set_Int (0); 878 else 879 Set_Int (ALIs.Table (ALIs.First).Time_Slice_Value); 880 end if; 881 882 Set_Char (';'); 883 Write_Statement_Buffer; 884 885 Set_String (" WC_Encoding := '"); 886 Set_Char (Get_WC_Encoding); 887 888 Set_String ("';"); 889 Write_Statement_Buffer; 890 891 Set_String (" Locking_Policy := '"); 892 Set_Char (Locking_Policy_Specified); 893 Set_String ("';"); 894 Write_Statement_Buffer; 895 896 Set_String (" Queuing_Policy := '"); 897 Set_Char (Queuing_Policy_Specified); 898 Set_String ("';"); 899 Write_Statement_Buffer; 900 901 Set_String (" Task_Dispatching_Policy := '"); 902 Set_Char (Task_Dispatching_Policy_Specified); 903 Set_String ("';"); 904 Write_Statement_Buffer; 905 906 if System_Tasking_Restricted_Stages_Used 907 and then Partition_Elaboration_Policy_Specified = 'S' 908 then 909 Set_String (" Partition_Elaboration_Policy := '"); 910 Set_Char (Partition_Elaboration_Policy_Specified); 911 Set_String ("';"); 912 Write_Statement_Buffer; 913 end if; 914 915 Gen_Restrictions; 916 917 WBI (" Priority_Specific_Dispatching :="); 918 WBI (" Local_Priority_Specific_Dispatching'Address;"); 919 920 Set_String (" Num_Specific_Dispatching := "); 921 Set_Int (PSD_Pragma_Settings.Last + 1); 922 Set_Char (';'); 923 Write_Statement_Buffer; 924 925 Set_String (" Main_CPU := "); 926 Set_Int (Main_CPU); 927 Set_Char (';'); 928 Write_Statement_Buffer; 929 930 WBI (" Interrupt_States := Local_Interrupt_States'Address;"); 931 932 Set_String (" Num_Interrupt_States := "); 933 Set_Int (IS_Pragma_Settings.Last + 1); 934 Set_Char (';'); 935 Write_Statement_Buffer; 936 937 Set_String (" Unreserve_All_Interrupts := "); 938 939 if Unreserve_All_Interrupts_Specified then 940 Set_String ("1"); 941 else 942 Set_String ("0"); 943 end if; 944 945 Set_Char (';'); 946 Write_Statement_Buffer; 947 948 if Exception_Tracebacks or Exception_Tracebacks_Symbolic then 949 WBI (" Exception_Tracebacks := 1;"); 950 951 if Exception_Tracebacks_Symbolic then 952 WBI (" Exception_Tracebacks_Symbolic := 1;"); 953 end if; 954 end if; 955 956 Set_String (" Detect_Blocking := "); 957 958 if Detect_Blocking then 959 Set_Int (1); 960 else 961 Set_Int (0); 962 end if; 963 964 Set_String (";"); 965 Write_Statement_Buffer; 966 967 Set_String (" Default_Stack_Size := "); 968 Set_Int (Default_Stack_Size); 969 Set_String (";"); 970 Write_Statement_Buffer; 971 972 Set_String (" Leap_Seconds_Support := "); 973 974 if Leap_Seconds_Support then 975 Set_Int (1); 976 else 977 Set_Int (0); 978 end if; 979 980 Set_String (";"); 981 Write_Statement_Buffer; 982 983 if Bind_Env_String_Built then 984 WBI (" Bind_Env_Addr := Bind_Env'Address;"); 985 end if; 986 987 WBI (""); 988 989 -- Generate default-sized secondary stack pool and set secondary 990 -- stack globals. 991 992 if Sec_Stack_Used then 993 994 -- Elaborate the body of the binder to initialize the default- 995 -- sized secondary stack pool. 996 997 WBI (" " & Get_Ada_Main_Name & "'Elab_Body;"); 998 999 -- Generate the default-sized secondary stack pool and set the 1000 -- related secondary stack globals. 1001 1002 Set_String (" Default_Secondary_Stack_Size := "); 1003 1004 if Opt.Default_Sec_Stack_Size /= Opt.No_Stack_Size then 1005 Set_Int (Opt.Default_Sec_Stack_Size); 1006 else 1007 Set_String ("System.Parameters.Runtime_Default_Sec_Stack_Size"); 1008 end if; 1009 1010 Set_Char (';'); 1011 Write_Statement_Buffer; 1012 1013 Set_String (" Binder_Sec_Stacks_Count := "); 1014 Set_Int (Num_Sec_Stacks); 1015 Set_Char (';'); 1016 Write_Statement_Buffer; 1017 1018 Set_String (" Default_Sized_SS_Pool := "); 1019 1020 if Num_Sec_Stacks > 0 then 1021 Set_String ("Sec_Default_Sized_Stacks'Address;"); 1022 else 1023 Set_String ("System.Null_Address;"); 1024 end if; 1025 1026 Write_Statement_Buffer; 1027 WBI (""); 1028 end if; 1029 1030 -- Generate call to Runtime_Initialize 1031 1032 WBI (" Runtime_Initialize (1);"); 1033 end if; 1034 1035 -- Generate call to set Initialize_Scalar values if active 1036 1037 if Initialize_Scalars_Used then 1038 WBI (""); 1039 Set_String (" System.Scalar_Values.Initialize ('"); 1040 Set_Char (Initialize_Scalars_Mode1); 1041 Set_String ("', '"); 1042 Set_Char (Initialize_Scalars_Mode2); 1043 Set_String ("');"); 1044 Write_Statement_Buffer; 1045 end if; 1046 1047 -- Initialize stack limit variable of the environment task if the stack 1048 -- check method is stack limit and stack check is enabled. 1049 1050 if Stack_Check_Limits_On_Target 1051 and then (Stack_Check_Default_On_Target or Stack_Check_Switch_Set) 1052 then 1053 WBI (""); 1054 WBI (" Initialize_Stack_Limit;"); 1055 end if; 1056 1057 -- On CodePeer, the finalization of library objects is not relevant 1058 1059 if CodePeer_Mode then 1060 null; 1061 1062 -- If this is the main program case, attach finalize_library to the soft 1063 -- link. Do it only when not using a restricted run time, in which case 1064 -- tasks are non-terminating, so we do not want library-level 1065 -- finalization. 1066 1067 elsif not Bind_For_Library 1068 and then not Configurable_Run_Time_On_Target 1069 and then not Suppress_Standard_Library_On_Target 1070 then 1071 WBI (""); 1072 1073 if Lib_Final_Built then 1074 Set_String (" Finalize_Library_Objects := "); 1075 Set_String ("finalize_library'access;"); 1076 else 1077 Set_String (" Finalize_Library_Objects := null;"); 1078 end if; 1079 1080 Write_Statement_Buffer; 1081 end if; 1082 1083 -- Generate elaboration calls 1084 1085 if not CodePeer_Mode then 1086 WBI (""); 1087 end if; 1088 1089 Gen_Elab_Calls (Elab_Order); 1090 1091 if not CodePeer_Mode then 1092 1093 -- Call System.Elaboration_Allocators.Mark_Start_Of_Elaboration if 1094 -- restriction No_Standard_Allocators_After_Elaboration is active. 1095 1096 if Cumulative_Restrictions.Set 1097 (No_Standard_Allocators_After_Elaboration) 1098 then 1099 WBI 1100 (" System.Elaboration_Allocators.Mark_End_Of_Elaboration;"); 1101 end if; 1102 1103 -- From this point, no new dispatching domain can be created 1104 1105 if Dispatching_Domains_Used then 1106 WBI (" Freeze_Dispatching_Domains;"); 1107 end if; 1108 1109 -- Sequential partition elaboration policy 1110 1111 if Partition_Elaboration_Policy_Specified = 'S' then 1112 if System_Interrupts_Used then 1113 WBI (" Install_Restricted_Handlers_Sequential;"); 1114 end if; 1115 1116 if System_Tasking_Restricted_Stages_Used then 1117 WBI (" Activate_All_Tasks_Sequential;"); 1118 end if; 1119 end if; 1120 1121 if System_BB_CPU_Primitives_Multiprocessors_Used then 1122 WBI (" Start_Slave_CPUs;"); 1123 end if; 1124 end if; 1125 1126 WBI (" end " & Ada_Init_Name.all & ";"); 1127 WBI (""); 1128 end Gen_Adainit; 1129 1130 ------------------------- 1131 -- Gen_Bind_Env_String -- 1132 ------------------------- 1133 1134 procedure Gen_Bind_Env_String is 1135 procedure Write_Name_With_Len (Nam : Name_Id); 1136 -- Write Nam as a string literal, prefixed with one 1137 -- character encoding Nam's length. 1138 1139 ------------------------- 1140 -- Write_Name_With_Len -- 1141 ------------------------- 1142 1143 procedure Write_Name_With_Len (Nam : Name_Id) is 1144 begin 1145 Get_Name_String (Nam); 1146 1147 Start_String; 1148 Store_String_Char (Character'Val (Name_Len)); 1149 Store_String_Chars (Name_Buffer (1 .. Name_Len)); 1150 1151 Write_String_Table_Entry (End_String); 1152 end Write_Name_With_Len; 1153 1154 -- Local variables 1155 1156 Amp : Character; 1157 KN : Name_Id := No_Name; 1158 VN : Name_Id := No_Name; 1159 1160 -- Start of processing for Gen_Bind_Env_String 1161 1162 begin 1163 Bind_Environment.Get_First (KN, VN); 1164 1165 if VN = No_Name then 1166 return; 1167 end if; 1168 1169 Set_Special_Output (Write_Bind_Line'Access); 1170 1171 WBI (" Bind_Env : aliased constant String :="); 1172 Amp := ' '; 1173 while VN /= No_Name loop 1174 Write_Str (" " & Amp & ' '); 1175 Write_Name_With_Len (KN); 1176 Write_Str (" & "); 1177 Write_Name_With_Len (VN); 1178 Write_Eol; 1179 1180 Bind_Environment.Get_Next (KN, VN); 1181 Amp := '&'; 1182 end loop; 1183 WBI (" & ASCII.NUL;"); 1184 1185 Set_Special_Output (null); 1186 1187 Bind_Env_String_Built := True; 1188 end Gen_Bind_Env_String; 1189 1190 -------------------------- 1191 -- Gen_CodePeer_Wrapper -- 1192 -------------------------- 1193 1194 procedure Gen_CodePeer_Wrapper is 1195 Callee_Name : constant String := "Ada_Main_Program"; 1196 1197 begin 1198 if ALIs.Table (ALIs.First).Main_Program = Proc then 1199 WBI (" procedure " & CodePeer_Wrapper_Name & " is "); 1200 WBI (" begin"); 1201 WBI (" " & Callee_Name & ";"); 1202 1203 else 1204 WBI (" function " & CodePeer_Wrapper_Name & " return Integer is"); 1205 WBI (" begin"); 1206 WBI (" return " & Callee_Name & ";"); 1207 end if; 1208 1209 WBI (" end " & CodePeer_Wrapper_Name & ";"); 1210 WBI (""); 1211 end Gen_CodePeer_Wrapper; 1212 1213 -------------------- 1214 -- Gen_Elab_Calls -- 1215 -------------------- 1216 1217 procedure Gen_Elab_Calls (Elab_Order : Unit_Id_Array) is 1218 Check_Elab_Flag : Boolean; 1219 1220 begin 1221 -- Loop through elaboration order entries 1222 1223 for E in Elab_Order'Range loop 1224 declare 1225 Unum : constant Unit_Id := Elab_Order (E); 1226 U : Unit_Record renames Units.Table (Unum); 1227 1228 Unum_Spec : Unit_Id; 1229 -- This is the unit number of the spec that corresponds to 1230 -- this entry. It is the same as Unum except when the body 1231 -- and spec are different and we are currently processing 1232 -- the body, in which case it is the spec (Unum + 1). 1233 1234 begin 1235 if U.Utype = Is_Body then 1236 Unum_Spec := Unum + 1; 1237 else 1238 Unum_Spec := Unum; 1239 end if; 1240 1241 -- Nothing to do if predefined unit in no run time mode 1242 1243 if No_Run_Time_Mode and then Is_Predefined_File_Name (U.Sfile) then 1244 null; 1245 1246 -- Likewise if this is an interface to a stand alone library 1247 1248 elsif U.SAL_Interface then 1249 null; 1250 1251 -- Case of no elaboration code 1252 1253 elsif U.No_Elab 1254 1255 -- In CodePeer mode, we special case subprogram bodies which 1256 -- are handled in the 'else' part below, and lead to a call 1257 -- to <subp>'Elab_Subp_Body. 1258 1259 and then (not CodePeer_Mode 1260 1261 -- Test for spec 1262 1263 or else U.Utype = Is_Spec 1264 or else U.Utype = Is_Spec_Only 1265 or else U.Unit_Kind /= 's') 1266 then 1267 -- In the case of a body with a separate spec, where the 1268 -- separate spec has an elaboration entity defined, this is 1269 -- where we increment the elaboration entity if one exists. 1270 1271 -- Likewise for lone specs with an elaboration entity defined 1272 -- despite No_Elaboration_Code, e.g. when requested to preserve 1273 -- control flow. 1274 1275 if (U.Utype = Is_Body or else U.Utype = Is_Spec_Only) 1276 and then Units.Table (Unum_Spec).Set_Elab_Entity 1277 and then not CodePeer_Mode 1278 then 1279 Set_String (" E"); 1280 Set_Unit_Number (Unum_Spec); 1281 Set_String (" := E"); 1282 Set_Unit_Number (Unum_Spec); 1283 Set_String (" + 1;"); 1284 Write_Statement_Buffer; 1285 end if; 1286 1287 -- Here if elaboration code is present. If binding a library 1288 -- or if there is a non-Ada main subprogram then we generate: 1289 1290 -- if uname_E = 0 then 1291 -- uname'elab_[spec|body]; 1292 -- end if; 1293 -- uname_E := uname_E + 1; 1294 1295 -- Otherwise, elaboration routines are called unconditionally: 1296 1297 -- uname'elab_[spec|body]; 1298 -- uname_E := uname_E + 1; 1299 1300 -- The uname_E increment is skipped if this is a separate spec, 1301 -- since it will be done when we process the body. 1302 1303 -- In CodePeer mode, we do not generate any reference to xxx_E 1304 -- variables, only calls to 'Elab* subprograms. 1305 1306 else 1307 -- Check incompatibilities with No_Multiple_Elaboration 1308 1309 if not CodePeer_Mode 1310 and then Cumulative_Restrictions.Set (No_Multiple_Elaboration) 1311 then 1312 -- Force_Checking_Of_Elaboration_Flags (-F) not allowed 1313 1314 if Force_Checking_Of_Elaboration_Flags then 1315 Osint.Fail 1316 ("-F (force elaboration checks) switch not allowed " 1317 & "with restriction No_Multiple_Elaboration active"); 1318 1319 -- Interfacing of libraries not allowed 1320 1321 elsif Interface_Library_Unit then 1322 Osint.Fail 1323 ("binding of interfaced libraries not allowed " 1324 & "with restriction No_Multiple_Elaboration active"); 1325 1326 -- Non-Ada main program not allowed 1327 1328 elsif not Bind_Main_Program then 1329 Osint.Fail 1330 ("non-Ada main program not allowed " 1331 & "with restriction No_Multiple_Elaboration active"); 1332 end if; 1333 end if; 1334 1335 -- OK, see if we need to test elaboration flag 1336 1337 Check_Elab_Flag := 1338 Units.Table (Unum_Spec).Set_Elab_Entity 1339 and then not CodePeer_Mode 1340 and then (Force_Checking_Of_Elaboration_Flags 1341 or Interface_Library_Unit 1342 or not Bind_Main_Program); 1343 1344 if Check_Elab_Flag then 1345 Set_String (" if E"); 1346 Set_Unit_Number (Unum_Spec); 1347 Set_String (" = 0 then"); 1348 Write_Statement_Buffer; 1349 Set_String (" "); 1350 end if; 1351 1352 Set_String (" "); 1353 Get_Decoded_Name_String_With_Brackets (U.Uname); 1354 1355 if Name_Buffer (Name_Len) = 's' then 1356 Name_Buffer (Name_Len - 1 .. Name_Len + 8) := 1357 "'elab_spec"; 1358 Name_Len := Name_Len + 8; 1359 1360 -- Special case in CodePeer mode for subprogram bodies 1361 -- which correspond to CodePeer 'Elab_Subp_Body special 1362 -- init procedure. 1363 1364 elsif U.Unit_Kind = 's' and CodePeer_Mode then 1365 Name_Buffer (Name_Len - 1 .. Name_Len + 13) := 1366 "'elab_subp_body"; 1367 Name_Len := Name_Len + 13; 1368 1369 else 1370 Name_Buffer (Name_Len - 1 .. Name_Len + 8) := 1371 "'elab_body"; 1372 Name_Len := Name_Len + 8; 1373 end if; 1374 1375 Set_Casing (U.Icasing); 1376 Set_Name_Buffer; 1377 Set_Char (';'); 1378 Write_Statement_Buffer; 1379 1380 if Check_Elab_Flag then 1381 WBI (" end if;"); 1382 end if; 1383 1384 if U.Utype /= Is_Spec 1385 and then not CodePeer_Mode 1386 and then Units.Table (Unum_Spec).Set_Elab_Entity 1387 then 1388 Set_String (" E"); 1389 Set_Unit_Number (Unum_Spec); 1390 Set_String (" := E"); 1391 Set_Unit_Number (Unum_Spec); 1392 Set_String (" + 1;"); 1393 Write_Statement_Buffer; 1394 end if; 1395 end if; 1396 end; 1397 end loop; 1398 end Gen_Elab_Calls; 1399 1400 ------------------------ 1401 -- Gen_Elab_Externals -- 1402 ------------------------ 1403 1404 procedure Gen_Elab_Externals (Elab_Order : Unit_Id_Array) is 1405 begin 1406 if CodePeer_Mode then 1407 return; 1408 end if; 1409 1410 for E in Elab_Order'Range loop 1411 declare 1412 Unum : constant Unit_Id := Elab_Order (E); 1413 U : Unit_Record renames Units.Table (Unum); 1414 1415 begin 1416 -- Check for Elab_Entity to be set for this unit 1417 1418 if U.Set_Elab_Entity 1419 1420 -- Don't generate reference for stand alone library 1421 1422 and then not U.SAL_Interface 1423 1424 -- Don't generate reference for predefined file in No_Run_Time 1425 -- mode, since we don't include the object files in this case 1426 1427 and then not 1428 (No_Run_Time_Mode 1429 and then Is_Predefined_File_Name (U.Sfile)) 1430 then 1431 Get_Name_String (U.Sfile); 1432 Set_String (" "); 1433 Set_String ("E"); 1434 Set_Unit_Number (Unum); 1435 Set_String (" : Short_Integer; pragma Import (Ada, E"); 1436 Set_Unit_Number (Unum); 1437 Set_String (", """); 1438 Get_Name_String (U.Uname); 1439 Set_Unit_Name; 1440 Set_String ("_E"");"); 1441 Write_Statement_Buffer; 1442 end if; 1443 end; 1444 end loop; 1445 1446 WBI (""); 1447 end Gen_Elab_Externals; 1448 1449 -------------------- 1450 -- Gen_Elab_Order -- 1451 -------------------- 1452 1453 procedure Gen_Elab_Order (Elab_Order : Unit_Id_Array) is 1454 begin 1455 WBI (""); 1456 WBI (" -- BEGIN ELABORATION ORDER"); 1457 1458 for J in Elab_Order'Range loop 1459 Set_String (" -- "); 1460 Get_Name_String (Units.Table (Elab_Order (J)).Uname); 1461 Set_Name_Buffer; 1462 Write_Statement_Buffer; 1463 end loop; 1464 1465 WBI (" -- END ELABORATION ORDER"); 1466 end Gen_Elab_Order; 1467 1468 -------------------------- 1469 -- Gen_Finalize_Library -- 1470 -------------------------- 1471 1472 procedure Gen_Finalize_Library (Elab_Order : Unit_Id_Array) is 1473 procedure Gen_Header; 1474 -- Generate the header of the finalization routine 1475 1476 ---------------- 1477 -- Gen_Header -- 1478 ---------------- 1479 1480 procedure Gen_Header is 1481 begin 1482 WBI (" procedure finalize_library is"); 1483 WBI (" begin"); 1484 end Gen_Header; 1485 1486 -- Local variables 1487 1488 Count : Int := 1; 1489 U : Unit_Record; 1490 Uspec : Unit_Record; 1491 Unum : Unit_Id; 1492 1493 -- Start of processing for Gen_Finalize_Library 1494 1495 begin 1496 if CodePeer_Mode then 1497 return; 1498 end if; 1499 1500 for E in reverse Elab_Order'Range loop 1501 Unum := Elab_Order (E); 1502 U := Units.Table (Unum); 1503 1504 -- Dealing with package bodies is a little complicated. In such 1505 -- cases we must retrieve the package spec since it contains the 1506 -- spec of the body finalizer. 1507 1508 if U.Utype = Is_Body then 1509 Unum := Unum + 1; 1510 Uspec := Units.Table (Unum); 1511 else 1512 Uspec := U; 1513 end if; 1514 1515 Get_Name_String (Uspec.Uname); 1516 1517 -- We are only interested in non-generic packages 1518 1519 if U.Unit_Kind /= 'p' or else U.Is_Generic then 1520 null; 1521 1522 -- That aren't an interface to a stand alone library 1523 1524 elsif U.SAL_Interface then 1525 null; 1526 1527 -- Case of no finalization 1528 1529 elsif not U.Has_Finalizer then 1530 1531 -- The only case in which we have to do something is if this 1532 -- is a body, with a separate spec, where the separate spec 1533 -- has a finalizer. In that case, this is where we decrement 1534 -- the elaboration entity. 1535 1536 if U.Utype = Is_Body and then Uspec.Has_Finalizer then 1537 if not Lib_Final_Built then 1538 Gen_Header; 1539 Lib_Final_Built := True; 1540 end if; 1541 1542 Set_String (" E"); 1543 Set_Unit_Number (Unum); 1544 Set_String (" := E"); 1545 Set_Unit_Number (Unum); 1546 Set_String (" - 1;"); 1547 Write_Statement_Buffer; 1548 end if; 1549 1550 else 1551 if not Lib_Final_Built then 1552 Gen_Header; 1553 Lib_Final_Built := True; 1554 end if; 1555 1556 -- Generate: 1557 -- declare 1558 -- procedure F<Count>; 1559 1560 Set_String (" declare"); 1561 Write_Statement_Buffer; 1562 1563 Set_String (" procedure F"); 1564 Set_Int (Count); 1565 Set_Char (';'); 1566 Write_Statement_Buffer; 1567 1568 -- Generate: 1569 -- pragma Import (Ada, F<Count>, 1570 -- "xx__yy__finalize_[body|spec]"); 1571 1572 Set_String (" pragma Import (Ada, F"); 1573 Set_Int (Count); 1574 Set_String (", """); 1575 1576 -- Perform name construction 1577 1578 Set_Unit_Name; 1579 Set_String ("__finalize_"); 1580 1581 -- Package spec processing 1582 1583 if U.Utype = Is_Spec 1584 or else U.Utype = Is_Spec_Only 1585 then 1586 Set_String ("spec"); 1587 1588 -- Package body processing 1589 1590 else 1591 Set_String ("body"); 1592 end if; 1593 1594 Set_String (""");"); 1595 Write_Statement_Buffer; 1596 1597 -- If binding a library or if there is a non-Ada main subprogram 1598 -- then we generate: 1599 1600 -- begin 1601 -- uname_E := uname_E - 1; 1602 -- if uname_E = 0 then 1603 -- F<Count>; 1604 -- end if; 1605 -- end; 1606 1607 -- Otherwise, finalization routines are called unconditionally: 1608 1609 -- begin 1610 -- uname_E := uname_E - 1; 1611 -- F<Count>; 1612 -- end; 1613 1614 -- The uname_E decrement is skipped if this is a separate spec, 1615 -- since it will be done when we process the body. 1616 1617 WBI (" begin"); 1618 1619 if U.Utype /= Is_Spec then 1620 Set_String (" E"); 1621 Set_Unit_Number (Unum); 1622 Set_String (" := E"); 1623 Set_Unit_Number (Unum); 1624 Set_String (" - 1;"); 1625 Write_Statement_Buffer; 1626 end if; 1627 1628 if Interface_Library_Unit or not Bind_Main_Program then 1629 Set_String (" if E"); 1630 Set_Unit_Number (Unum); 1631 Set_String (" = 0 then"); 1632 Write_Statement_Buffer; 1633 Set_String (" "); 1634 end if; 1635 1636 Set_String (" F"); 1637 Set_Int (Count); 1638 Set_Char (';'); 1639 Write_Statement_Buffer; 1640 1641 if Interface_Library_Unit or not Bind_Main_Program then 1642 WBI (" end if;"); 1643 end if; 1644 1645 WBI (" end;"); 1646 1647 Count := Count + 1; 1648 end if; 1649 end loop; 1650 1651 if Lib_Final_Built then 1652 1653 -- It is possible that the finalization of a library-level object 1654 -- raised an exception. In that case import the actual exception 1655 -- and the routine necessary to raise it. 1656 1657 WBI (" declare"); 1658 WBI (" procedure Reraise_Library_Exception_If_Any;"); 1659 1660 Set_String (" pragma Import (Ada, "); 1661 Set_String ("Reraise_Library_Exception_If_Any, "); 1662 Set_String ("""__gnat_reraise_library_exception_if_any"");"); 1663 Write_Statement_Buffer; 1664 1665 WBI (" begin"); 1666 WBI (" Reraise_Library_Exception_If_Any;"); 1667 WBI (" end;"); 1668 WBI (" end finalize_library;"); 1669 WBI (""); 1670 end if; 1671 end Gen_Finalize_Library; 1672 1673 -------------- 1674 -- Gen_Main -- 1675 -------------- 1676 1677 procedure Gen_Main is 1678 begin 1679 if not No_Main_Subprogram then 1680 1681 -- To call the main program, we declare it using a pragma Import 1682 -- Ada with the right link name. 1683 1684 -- It might seem more obvious to "with" the main program, and call 1685 -- it in the normal Ada manner. We do not do this for three 1686 -- reasons: 1687 1688 -- 1. It is more efficient not to recompile the main program 1689 -- 2. We are not entitled to assume the source is accessible 1690 -- 3. We don't know what options to use to compile it 1691 1692 -- It is really reason 3 that is most critical (indeed we used 1693 -- to generate the "with", but several regression tests failed). 1694 1695 if ALIs.Table (ALIs.First).Main_Program = Func then 1696 WBI (" function Ada_Main_Program return Integer;"); 1697 else 1698 WBI (" procedure Ada_Main_Program;"); 1699 end if; 1700 1701 Set_String (" pragma Import (Ada, Ada_Main_Program, """); 1702 Get_Name_String (Units.Table (First_Unit_Entry).Uname); 1703 Set_Main_Program_Name; 1704 Set_String (""");"); 1705 1706 Write_Statement_Buffer; 1707 WBI (""); 1708 1709 -- For CodePeer, declare a wrapper for the user-defined main program 1710 1711 if CodePeer_Mode then 1712 Gen_CodePeer_Wrapper; 1713 end if; 1714 end if; 1715 1716 if Exit_Status_Supported_On_Target then 1717 Set_String (" function "); 1718 else 1719 Set_String (" procedure "); 1720 end if; 1721 1722 Set_String (Get_Main_Name); 1723 1724 if Command_Line_Args_On_Target then 1725 Write_Statement_Buffer; 1726 WBI (" (argc : Integer;"); 1727 WBI (" argv : System.Address;"); 1728 WBI (" envp : System.Address)"); 1729 1730 if Exit_Status_Supported_On_Target then 1731 WBI (" return Integer"); 1732 end if; 1733 1734 WBI (" is"); 1735 1736 else 1737 if Exit_Status_Supported_On_Target then 1738 Set_String (" return Integer is"); 1739 else 1740 Set_String (" is"); 1741 end if; 1742 1743 Write_Statement_Buffer; 1744 end if; 1745 1746 if Opt.Default_Exit_Status /= 0 1747 and then Bind_Main_Program 1748 and then not Configurable_Run_Time_Mode 1749 then 1750 WBI (" procedure Set_Exit_Status (Status : Integer);"); 1751 WBI (" pragma Import (C, Set_Exit_Status, " & 1752 """__gnat_set_exit_status"");"); 1753 WBI (""); 1754 end if; 1755 1756 -- Initialize and Finalize 1757 1758 if not CodePeer_Mode 1759 and then not Cumulative_Restrictions.Set (No_Finalization) 1760 then 1761 WBI (" procedure Initialize (Addr : System.Address);"); 1762 WBI (" pragma Import (C, Initialize, ""__gnat_initialize"");"); 1763 WBI (""); 1764 WBI (" procedure Finalize;"); 1765 WBI (" pragma Import (C, Finalize, ""__gnat_finalize"");"); 1766 end if; 1767 1768 -- If we want to analyze the stack, we must import corresponding symbols 1769 1770 if Dynamic_Stack_Measurement then 1771 WBI (""); 1772 WBI (" procedure Output_Results;"); 1773 WBI (" pragma Import (C, Output_Results, " & 1774 """__gnat_stack_usage_output_results"");"); 1775 1776 WBI (""); 1777 WBI (" " & 1778 "procedure Initialize_Stack_Analysis (Buffer_Size : Natural);"); 1779 WBI (" pragma Import (C, Initialize_Stack_Analysis, " & 1780 """__gnat_stack_usage_initialize"");"); 1781 end if; 1782 1783 -- Deal with declarations for main program case 1784 1785 if not No_Main_Subprogram then 1786 if ALIs.Table (ALIs.First).Main_Program = Func then 1787 WBI (" Result : Integer;"); 1788 WBI (""); 1789 end if; 1790 1791 if Bind_Main_Program 1792 and not Suppress_Standard_Library_On_Target 1793 and not CodePeer_Mode 1794 then 1795 WBI (" SEH : aliased array (1 .. 2) of Integer;"); 1796 WBI (""); 1797 end if; 1798 end if; 1799 1800 -- Generate a reference to Ada_Main_Program_Name. This symbol is not 1801 -- referenced elsewhere in the generated program, but is needed by 1802 -- the debugger (that's why it is generated in the first place). The 1803 -- reference stops Ada_Main_Program_Name from being optimized away by 1804 -- smart linkers, such as the AiX linker. 1805 1806 -- Because this variable is unused, we make this variable "aliased" 1807 -- with a pragma Volatile in order to tell the compiler to preserve 1808 -- this variable at any level of optimization. 1809 1810 if Bind_Main_Program and not CodePeer_Mode then 1811 WBI (" Ensure_Reference : aliased System.Address := " & 1812 "Ada_Main_Program_Name'Address;"); 1813 WBI (" pragma Volatile (Ensure_Reference);"); 1814 WBI (""); 1815 end if; 1816 1817 WBI (" begin"); 1818 1819 -- Acquire command line arguments if present on target 1820 1821 if CodePeer_Mode then 1822 null; 1823 1824 elsif Command_Line_Args_On_Target then 1825 WBI (" gnat_argc := argc;"); 1826 WBI (" gnat_argv := argv;"); 1827 WBI (" gnat_envp := envp;"); 1828 WBI (""); 1829 1830 -- If configurable run time and no command line args, then nothing needs 1831 -- to be done since the gnat_argc/argv/envp variables are suppressed in 1832 -- this case. 1833 1834 elsif Configurable_Run_Time_On_Target then 1835 null; 1836 1837 -- Otherwise set dummy values (to be filled in by some other unit?) 1838 1839 else 1840 WBI (" gnat_argc := 0;"); 1841 WBI (" gnat_argv := System.Null_Address;"); 1842 WBI (" gnat_envp := System.Null_Address;"); 1843 end if; 1844 1845 if Opt.Default_Exit_Status /= 0 1846 and then Bind_Main_Program 1847 and then not Configurable_Run_Time_Mode 1848 then 1849 Set_String (" Set_Exit_Status ("); 1850 Set_Int (Opt.Default_Exit_Status); 1851 Set_String (");"); 1852 Write_Statement_Buffer; 1853 end if; 1854 1855 if Dynamic_Stack_Measurement then 1856 Set_String (" Initialize_Stack_Analysis ("); 1857 Set_Int (Dynamic_Stack_Measurement_Array_Size); 1858 Set_String (");"); 1859 Write_Statement_Buffer; 1860 end if; 1861 1862 if not Cumulative_Restrictions.Set (No_Finalization) 1863 and then not CodePeer_Mode 1864 then 1865 if not No_Main_Subprogram 1866 and then Bind_Main_Program 1867 and then not Suppress_Standard_Library_On_Target 1868 then 1869 WBI (" Initialize (SEH'Address);"); 1870 else 1871 WBI (" Initialize (System.Null_Address);"); 1872 end if; 1873 end if; 1874 1875 WBI (" " & Ada_Init_Name.all & ";"); 1876 1877 if not No_Main_Subprogram then 1878 if CodePeer_Mode then 1879 if ALIs.Table (ALIs.First).Main_Program = Proc then 1880 WBI (" " & CodePeer_Wrapper_Name & ";"); 1881 else 1882 WBI (" Result := " & CodePeer_Wrapper_Name & ";"); 1883 end if; 1884 1885 elsif ALIs.Table (ALIs.First).Main_Program = Proc then 1886 WBI (" Ada_Main_Program;"); 1887 1888 else 1889 WBI (" Result := Ada_Main_Program;"); 1890 end if; 1891 end if; 1892 1893 -- Adafinal call is skipped if no finalization 1894 1895 if not Cumulative_Restrictions.Set (No_Finalization) then 1896 WBI (" adafinal;"); 1897 end if; 1898 1899 -- Prints the result of static stack analysis 1900 1901 if Dynamic_Stack_Measurement then 1902 WBI (" Output_Results;"); 1903 end if; 1904 1905 -- Finalize is only called if we have a run time 1906 1907 if not Cumulative_Restrictions.Set (No_Finalization) 1908 and then not CodePeer_Mode 1909 then 1910 WBI (" Finalize;"); 1911 end if; 1912 1913 -- Return result 1914 1915 if Exit_Status_Supported_On_Target then 1916 if No_Main_Subprogram 1917 or else ALIs.Table (ALIs.First).Main_Program = Proc 1918 then 1919 WBI (" return (gnat_exit_status);"); 1920 else 1921 WBI (" return (Result);"); 1922 end if; 1923 end if; 1924 1925 WBI (" end;"); 1926 WBI (""); 1927 end Gen_Main; 1928 1929 ------------------------------ 1930 -- Gen_Object_Files_Options -- 1931 ------------------------------ 1932 1933 procedure Gen_Object_Files_Options (Elab_Order : Unit_Id_Array) is 1934 Lgnat : Natural; 1935 -- This keeps track of the position in the sorted set of entries in the 1936 -- Linker_Options table of where the first entry from an internal file 1937 -- appears. 1938 1939 Linker_Option_List_Started : Boolean := False; 1940 -- Set to True when "LINKER OPTION LIST" is displayed 1941 1942 procedure Write_Linker_Option; 1943 -- Write binder info linker option 1944 1945 ------------------------- 1946 -- Write_Linker_Option -- 1947 ------------------------- 1948 1949 procedure Write_Linker_Option is 1950 Start : Natural; 1951 Stop : Natural; 1952 1953 begin 1954 -- Loop through string, breaking at null's 1955 1956 Start := 1; 1957 while Start < Name_Len loop 1958 1959 -- Find null ending this section 1960 1961 Stop := Start + 1; 1962 while Name_Buffer (Stop) /= ASCII.NUL 1963 and then Stop <= Name_Len loop 1964 Stop := Stop + 1; 1965 end loop; 1966 1967 -- Process section if non-null 1968 1969 if Stop > Start then 1970 if Output_Linker_Option_List then 1971 if not Zero_Formatting then 1972 if not Linker_Option_List_Started then 1973 Linker_Option_List_Started := True; 1974 Write_Eol; 1975 Write_Str (" LINKER OPTION LIST"); 1976 Write_Eol; 1977 Write_Eol; 1978 end if; 1979 1980 Write_Str (" "); 1981 end if; 1982 1983 Write_Str (Name_Buffer (Start .. Stop - 1)); 1984 Write_Eol; 1985 end if; 1986 WBI (" -- " & Name_Buffer (Start .. Stop - 1)); 1987 end if; 1988 1989 Start := Stop + 1; 1990 end loop; 1991 end Write_Linker_Option; 1992 1993 -- Start of processing for Gen_Object_Files_Options 1994 1995 begin 1996 WBI ("-- BEGIN Object file/option list"); 1997 1998 if Object_List_Filename /= null then 1999 Set_List_File (Object_List_Filename.all); 2000 end if; 2001 2002 for E in Elab_Order'Range loop 2003 2004 -- If not spec that has an associated body, then generate a comment 2005 -- giving the name of the corresponding object file. 2006 2007 if not Units.Table (Elab_Order (E)).SAL_Interface 2008 and then Units.Table (Elab_Order (E)).Utype /= Is_Spec 2009 then 2010 Get_Name_String 2011 (ALIs.Table 2012 (Units.Table (Elab_Order (E)).My_ALI).Ofile_Full_Name); 2013 2014 -- If the presence of an object file is necessary or if it exists, 2015 -- then use it. 2016 2017 if not Hostparm.Exclude_Missing_Objects 2018 or else 2019 System.OS_Lib.Is_Regular_File (Name_Buffer (1 .. Name_Len)) 2020 then 2021 WBI (" -- " & Name_Buffer (1 .. Name_Len)); 2022 2023 if Output_Object_List then 2024 Write_Str (Name_Buffer (1 .. Name_Len)); 2025 Write_Eol; 2026 end if; 2027 end if; 2028 end if; 2029 end loop; 2030 2031 if Object_List_Filename /= null then 2032 Close_List_File; 2033 end if; 2034 2035 -- Add a "-Ldir" for each directory in the object path 2036 2037 for J in 1 .. Nb_Dir_In_Obj_Search_Path loop 2038 declare 2039 Dir : constant String_Ptr := Dir_In_Obj_Search_Path (J); 2040 2041 begin 2042 Name_Len := 0; 2043 Add_Str_To_Name_Buffer ("-L"); 2044 Add_Str_To_Name_Buffer (Dir.all); 2045 Write_Linker_Option; 2046 end; 2047 end loop; 2048 2049 if not (Opt.No_Run_Time_Mode or Opt.No_Stdlib) then 2050 Name_Len := 0; 2051 2052 if Opt.Shared_Libgnat then 2053 Add_Str_To_Name_Buffer ("-shared"); 2054 else 2055 Add_Str_To_Name_Buffer ("-static"); 2056 end if; 2057 2058 -- Write directly to avoid inclusion in -K output as -static and 2059 -- -shared are not usually specified linker options. 2060 2061 WBI (" -- " & Name_Buffer (1 .. Name_Len)); 2062 end if; 2063 2064 -- Sort linker options 2065 2066 -- This sort accomplishes two important purposes: 2067 2068 -- a) All application files are sorted to the front, and all GNAT 2069 -- internal files are sorted to the end. This results in a well 2070 -- defined dividing line between the two sets of files, for the 2071 -- purpose of inserting certain standard library references into 2072 -- the linker arguments list. 2073 2074 -- b) Given two different units, we sort the linker options so that 2075 -- those from a unit earlier in the elaboration order comes later 2076 -- in the list. This is a heuristic designed to create a more 2077 -- friendly order of linker options when the operations appear in 2078 -- separate units. The idea is that if unit A must be elaborated 2079 -- before unit B, then it is more likely that B references 2080 -- libraries included by A, than vice versa, so we want libraries 2081 -- included by A to come after libraries included by B. 2082 2083 -- These two criteria are implemented by function Lt_Linker_Option. Note 2084 -- that a special case of b) is that specs are elaborated before bodies, 2085 -- so linker options from specs come after linker options for bodies, 2086 -- and again, the assumption is that libraries used by the body are more 2087 -- likely to reference libraries used by the spec, than vice versa. 2088 2089 Sort 2090 (Linker_Options.Last, 2091 Move_Linker_Option'Access, 2092 Lt_Linker_Option'Access); 2093 2094 -- Write user linker options, i.e. the set of linker options that come 2095 -- from all files other than GNAT internal files, Lgnat is left set to 2096 -- point to the first entry from a GNAT internal file, or past the end 2097 -- of the entries if there are no internal files. 2098 2099 Lgnat := Linker_Options.Last + 1; 2100 2101 for J in 1 .. Linker_Options.Last loop 2102 if not Linker_Options.Table (J).Internal_File then 2103 Get_Name_String (Linker_Options.Table (J).Name); 2104 Write_Linker_Option; 2105 else 2106 Lgnat := J; 2107 exit; 2108 end if; 2109 end loop; 2110 2111 -- Now we insert standard linker options that must appear after the 2112 -- entries from user files, and before the entries from GNAT run-time 2113 -- files. The reason for this decision is that libraries referenced 2114 -- by internal routines may reference these standard library entries. 2115 2116 -- Note that we do not insert anything when pragma No_Run_Time has 2117 -- been specified or when the standard libraries are not to be used, 2118 -- otherwise on some platforms, we may get duplicate symbols when 2119 -- linking (not clear if this is still the case, but it is harmless). 2120 2121 if not (Opt.No_Run_Time_Mode or else Opt.No_Stdlib) then 2122 if With_GNARL then 2123 Name_Len := 0; 2124 2125 if Opt.Shared_Libgnat then 2126 Add_Str_To_Name_Buffer (Shared_Lib ("gnarl")); 2127 else 2128 Add_Str_To_Name_Buffer ("-lgnarl"); 2129 end if; 2130 2131 Write_Linker_Option; 2132 end if; 2133 2134 Name_Len := 0; 2135 2136 if Opt.Shared_Libgnat then 2137 Add_Str_To_Name_Buffer (Shared_Lib ("gnat")); 2138 else 2139 Add_Str_To_Name_Buffer ("-lgnat"); 2140 end if; 2141 2142 Write_Linker_Option; 2143 end if; 2144 2145 -- Write linker options from all internal files 2146 2147 for J in Lgnat .. Linker_Options.Last loop 2148 Get_Name_String (Linker_Options.Table (J).Name); 2149 Write_Linker_Option; 2150 end loop; 2151 2152 if Output_Linker_Option_List and then not Zero_Formatting then 2153 Write_Eol; 2154 end if; 2155 2156 WBI ("-- END Object file/option list "); 2157 end Gen_Object_Files_Options; 2158 2159 --------------------- 2160 -- Gen_Output_File -- 2161 --------------------- 2162 2163 procedure Gen_Output_File 2164 (Filename : String; 2165 Elab_Order : Unit_Id_Array) 2166 is 2167 begin 2168 -- Acquire settings for Interrupt_State pragmas 2169 2170 Set_IS_Pragma_Table; 2171 2172 -- Acquire settings for Priority_Specific_Dispatching pragma 2173 2174 Set_PSD_Pragma_Table; 2175 2176 -- Override time slice value if -T switch is set 2177 2178 if Time_Slice_Set then 2179 ALIs.Table (ALIs.First).Time_Slice_Value := Opt.Time_Slice_Value; 2180 end if; 2181 2182 -- Count number of elaboration calls 2183 2184 for E in Elab_Order'Range loop 2185 if Units.Table (Elab_Order (E)).No_Elab then 2186 null; 2187 else 2188 Num_Elab_Calls := Num_Elab_Calls + 1; 2189 end if; 2190 end loop; 2191 2192 -- Count the number of statically allocated stacks to be generated by 2193 -- the binder. If the user has specified the number of default-sized 2194 -- secondary stacks, use that number. Otherwise start the count at one 2195 -- as the binder is responsible for creating a secondary stack for the 2196 -- main task. 2197 2198 if Opt.Quantity_Of_Default_Size_Sec_Stacks /= -1 then 2199 Num_Sec_Stacks := Quantity_Of_Default_Size_Sec_Stacks; 2200 elsif Sec_Stack_Used then 2201 Num_Sec_Stacks := 1; 2202 end if; 2203 2204 for J in Units.First .. Units.Last loop 2205 Num_Primary_Stacks := 2206 Num_Primary_Stacks + Units.Table (J).Primary_Stack_Count; 2207 2208 Num_Sec_Stacks := 2209 Num_Sec_Stacks + Units.Table (J).Sec_Stack_Count; 2210 end loop; 2211 2212 -- Generate output file in appropriate language 2213 2214 Gen_Output_File_Ada (Filename, Elab_Order); 2215 end Gen_Output_File; 2216 2217 ------------------------- 2218 -- Gen_Output_File_Ada -- 2219 ------------------------- 2220 2221 procedure Gen_Output_File_Ada 2222 (Filename : String; Elab_Order : Unit_Id_Array) 2223 is 2224 Ada_Main : constant String := Get_Ada_Main_Name; 2225 -- Name to be used for generated Ada main program. See the body of 2226 -- function Get_Ada_Main_Name for details on the form of the name. 2227 2228 Needs_Library_Finalization : constant Boolean := 2229 not Configurable_Run_Time_On_Target 2230 and then Has_Finalizer (Elab_Order); 2231 -- For restricted run-time libraries (ZFP and Ravenscar) tasks are 2232 -- non-terminating, so we do not want finalization. 2233 2234 Bfiles : Name_Id; 2235 -- Name of generated bind file (spec) 2236 2237 Bfileb : Name_Id; 2238 -- Name of generated bind file (body) 2239 2240 begin 2241 -- Create spec first 2242 2243 Create_Binder_Output (Filename, 's', Bfiles); 2244 2245 -- We always compile the binder file in Ada 95 mode so that we properly 2246 -- handle use of Ada 2005 keywords as identifiers in Ada 95 mode. None 2247 -- of the Ada 2005 or Ada 2012 constructs are needed by the binder file. 2248 2249 WBI ("pragma Warnings (Off);"); 2250 WBI ("pragma Ada_95;"); 2251 2252 -- If we are operating in Restrictions (No_Exception_Handlers) mode, 2253 -- then we need to make sure that the binder program is compiled with 2254 -- the same restriction, so that no exception tables are generated. 2255 2256 if Cumulative_Restrictions.Set (No_Exception_Handlers) then 2257 WBI ("pragma Restrictions (No_Exception_Handlers);"); 2258 end if; 2259 2260 -- Same processing for Restrictions (No_Exception_Propagation) 2261 2262 if Cumulative_Restrictions.Set (No_Exception_Propagation) then 2263 WBI ("pragma Restrictions (No_Exception_Propagation);"); 2264 end if; 2265 2266 -- Same processing for pragma No_Run_Time 2267 2268 if No_Run_Time_Mode then 2269 WBI ("pragma No_Run_Time;"); 2270 end if; 2271 2272 -- Generate with of System so we can reference System.Address 2273 2274 WBI ("with System;"); 2275 2276 -- Generate with of System.Initialize_Scalars if active 2277 2278 if Initialize_Scalars_Used then 2279 WBI ("with System.Scalar_Values;"); 2280 end if; 2281 2282 -- Generate withs of System.Secondary_Stack and System.Parameters to 2283 -- allow the generation of the default-sized secondary stack pool. 2284 2285 if Sec_Stack_Used then 2286 WBI ("with System.Parameters;"); 2287 WBI ("with System.Secondary_Stack;"); 2288 end if; 2289 2290 Resolve_Binder_Options (Elab_Order); 2291 2292 -- Generate standard with's 2293 2294 if not Suppress_Standard_Library_On_Target then 2295 if CodePeer_Mode then 2296 WBI ("with System.Standard_Library;"); 2297 end if; 2298 end if; 2299 2300 WBI ("package " & Ada_Main & " is"); 2301 2302 -- Main program case 2303 2304 if Bind_Main_Program then 2305 -- Generate argc/argv stuff unless suppressed 2306 2307 if Command_Line_Args_On_Target 2308 or not Configurable_Run_Time_On_Target 2309 then 2310 WBI (""); 2311 WBI (" gnat_argc : Integer;"); 2312 WBI (" gnat_argv : System.Address;"); 2313 WBI (" gnat_envp : System.Address;"); 2314 2315 -- If the standard library is not suppressed, these variables 2316 -- are in the run-time data area for easy run time access. 2317 2318 if not Suppress_Standard_Library_On_Target then 2319 WBI (""); 2320 WBI (" pragma Import (C, gnat_argc);"); 2321 WBI (" pragma Import (C, gnat_argv);"); 2322 WBI (" pragma Import (C, gnat_envp);"); 2323 end if; 2324 end if; 2325 2326 -- Define exit status. Again in normal mode, this is in the run-time 2327 -- library, and is initialized there, but in the configurable 2328 -- run-time case, the variable is declared and initialized in this 2329 -- file. 2330 2331 WBI (""); 2332 2333 if Configurable_Run_Time_Mode then 2334 if Exit_Status_Supported_On_Target then 2335 WBI (" gnat_exit_status : Integer := 0;"); 2336 end if; 2337 2338 else 2339 WBI (" gnat_exit_status : Integer;"); 2340 WBI (" pragma Import (C, gnat_exit_status);"); 2341 end if; 2342 2343 -- Generate the GNAT_Version and Ada_Main_Program_Name info only for 2344 -- the main program. Otherwise, it can lead under some circumstances 2345 -- to a symbol duplication during the link (for instance when a C 2346 -- program uses two Ada libraries). Also zero terminate the string 2347 -- so that its end can be found reliably at run time. 2348 2349 WBI (""); 2350 WBI (" GNAT_Version : constant String :="); 2351 WBI (" """ & Ver_Prefix & 2352 Gnat_Version_String & 2353 """ & ASCII.NUL;"); 2354 WBI (" pragma Export (C, GNAT_Version, ""__gnat_version"");"); 2355 2356 WBI (""); 2357 Set_String (" Ada_Main_Program_Name : constant String := """); 2358 Get_Name_String (Units.Table (First_Unit_Entry).Uname); 2359 2360 Set_Main_Program_Name; 2361 Set_String (""" & ASCII.NUL;"); 2362 2363 Write_Statement_Buffer; 2364 2365 WBI 2366 (" pragma Export (C, Ada_Main_Program_Name, " & 2367 """__gnat_ada_main_program_name"");"); 2368 end if; 2369 2370 WBI (""); 2371 WBI (" procedure " & Ada_Init_Name.all & ";"); 2372 WBI (" pragma Export (C, " & Ada_Init_Name.all & ", """ & 2373 Ada_Init_Name.all & """);"); 2374 2375 -- If -a has been specified use pragma Linker_Constructor for the init 2376 -- procedure and pragma Linker_Destructor for the final procedure. 2377 2378 if Use_Pragma_Linker_Constructor then 2379 WBI (" pragma Linker_Constructor (" & Ada_Init_Name.all & ");"); 2380 end if; 2381 2382 if not Cumulative_Restrictions.Set (No_Finalization) then 2383 WBI (""); 2384 WBI (" procedure " & Ada_Final_Name.all & ";"); 2385 WBI (" pragma Export (C, " & Ada_Final_Name.all & ", """ & 2386 Ada_Final_Name.all & """);"); 2387 2388 if Use_Pragma_Linker_Constructor then 2389 WBI (" pragma Linker_Destructor (" & Ada_Final_Name.all & ");"); 2390 end if; 2391 end if; 2392 2393 if Bind_Main_Program then 2394 2395 WBI (""); 2396 2397 if Exit_Status_Supported_On_Target then 2398 Set_String (" function "); 2399 else 2400 Set_String (" procedure "); 2401 end if; 2402 2403 Set_String (Get_Main_Name); 2404 2405 -- Generate argument list if present 2406 2407 if Command_Line_Args_On_Target then 2408 Write_Statement_Buffer; 2409 WBI (" (argc : Integer;"); 2410 WBI (" argv : System.Address;"); 2411 Set_String 2412 (" envp : System.Address)"); 2413 2414 if Exit_Status_Supported_On_Target then 2415 Write_Statement_Buffer; 2416 WBI (" return Integer;"); 2417 else 2418 Write_Statement_Buffer (";"); 2419 end if; 2420 2421 else 2422 if Exit_Status_Supported_On_Target then 2423 Write_Statement_Buffer (" return Integer;"); 2424 else 2425 Write_Statement_Buffer (";"); 2426 end if; 2427 end if; 2428 2429 WBI (" pragma Export (C, " & Get_Main_Name & ", """ & 2430 Get_Main_Name & """);"); 2431 end if; 2432 2433 -- Generate version numbers for units, only if needed. Be very safe on 2434 -- the condition. 2435 2436 if not Configurable_Run_Time_On_Target 2437 or else System_Version_Control_Used 2438 or else not Bind_Main_Program 2439 then 2440 Gen_Versions; 2441 end if; 2442 2443 Gen_Elab_Order (Elab_Order); 2444 2445 -- Spec is complete 2446 2447 WBI (""); 2448 WBI ("end " & Ada_Main & ";"); 2449 Close_Binder_Output; 2450 2451 -- Prepare to write body 2452 2453 Create_Binder_Output (Filename, 'b', Bfileb); 2454 2455 -- We always compile the binder file in Ada 95 mode so that we properly 2456 -- handle use of Ada 2005 keywords as identifiers in Ada 95 mode. None 2457 -- of the Ada 2005/2012 constructs are needed by the binder file. 2458 2459 WBI ("pragma Warnings (Off);"); 2460 WBI ("pragma Ada_95;"); 2461 2462 -- Output Source_File_Name pragmas which look like 2463 2464 -- pragma Source_File_Name (Ada_Main, Spec_File_Name => "sss"); 2465 -- pragma Source_File_Name (Ada_Main, Body_File_Name => "bbb"); 2466 2467 -- where sss/bbb are the spec/body file names respectively 2468 2469 Get_Name_String (Bfiles); 2470 Name_Buffer (Name_Len + 1 .. Name_Len + 3) := """);"; 2471 2472 WBI ("pragma Source_File_Name (" & 2473 Ada_Main & 2474 ", Spec_File_Name => """ & 2475 Name_Buffer (1 .. Name_Len + 3)); 2476 2477 Get_Name_String (Bfileb); 2478 Name_Buffer (Name_Len + 1 .. Name_Len + 3) := """);"; 2479 2480 WBI ("pragma Source_File_Name (" & 2481 Ada_Main & 2482 ", Body_File_Name => """ & 2483 Name_Buffer (1 .. Name_Len + 3)); 2484 2485 -- Generate pragma Suppress (Overflow_Check). This is needed for recent 2486 -- versions of the compiler which have overflow checks on by default. 2487 -- We do not want overflow checking enabled for the increments of the 2488 -- elaboration variables (since this can cause an unwanted reference to 2489 -- the last chance exception handler for limited run-times). 2490 2491 WBI ("pragma Suppress (Overflow_Check);"); 2492 2493 -- Generate with of System.Restrictions to initialize 2494 -- Run_Time_Restrictions. 2495 2496 if System_Restrictions_Used 2497 and not Suppress_Standard_Library_On_Target 2498 then 2499 WBI (""); 2500 WBI ("with System.Restrictions;"); 2501 end if; 2502 2503 -- Generate with of Ada.Exceptions if needs library finalization 2504 2505 if Needs_Library_Finalization then 2506 WBI ("with Ada.Exceptions;"); 2507 end if; 2508 2509 -- Generate with of System.Elaboration_Allocators if the restriction 2510 -- No_Standard_Allocators_After_Elaboration was present. 2511 2512 if Cumulative_Restrictions.Set 2513 (No_Standard_Allocators_After_Elaboration) 2514 then 2515 WBI ("with System.Elaboration_Allocators;"); 2516 end if; 2517 2518 -- Generate start of package body 2519 2520 WBI (""); 2521 WBI ("package body " & Ada_Main & " is"); 2522 WBI (""); 2523 2524 -- Generate externals for elaboration entities 2525 2526 Gen_Elab_Externals (Elab_Order); 2527 2528 -- Generate default-sized secondary stacks pool. At least one stack is 2529 -- created and assigned to the environment task if secondary stacks are 2530 -- used by the program. 2531 2532 if Sec_Stack_Used then 2533 Set_String (" Sec_Default_Sized_Stacks"); 2534 Set_String (" : array (1 .. "); 2535 Set_Int (Num_Sec_Stacks); 2536 Set_String (") of aliased System.Secondary_Stack.SS_Stack ("); 2537 2538 if Opt.Default_Sec_Stack_Size /= No_Stack_Size then 2539 Set_Int (Opt.Default_Sec_Stack_Size); 2540 else 2541 Set_String ("System.Parameters.Runtime_Default_Sec_Stack_Size"); 2542 end if; 2543 2544 Set_String (");"); 2545 Write_Statement_Buffer; 2546 WBI (""); 2547 end if; 2548 2549 -- Generate reference 2550 2551 if not CodePeer_Mode then 2552 if not Suppress_Standard_Library_On_Target then 2553 2554 -- Generate Priority_Specific_Dispatching pragma string 2555 2556 Set_String 2557 (" Local_Priority_Specific_Dispatching : " & 2558 "constant String := """); 2559 2560 for J in 0 .. PSD_Pragma_Settings.Last loop 2561 Set_Char (PSD_Pragma_Settings.Table (J)); 2562 end loop; 2563 2564 Set_String (""";"); 2565 Write_Statement_Buffer; 2566 2567 -- Generate Interrupt_State pragma string 2568 2569 Set_String (" Local_Interrupt_States : constant String := """); 2570 2571 for J in 0 .. IS_Pragma_Settings.Last loop 2572 Set_Char (IS_Pragma_Settings.Table (J)); 2573 end loop; 2574 2575 Set_String (""";"); 2576 Write_Statement_Buffer; 2577 WBI (""); 2578 end if; 2579 2580 if not Suppress_Standard_Library_On_Target then 2581 2582 -- The B.1(39) implementation advice says that the adainit and 2583 -- adafinal routines should be idempotent. Generate a flag to 2584 -- ensure that. This is not needed if we are suppressing the 2585 -- standard library since it would never be referenced. 2586 2587 WBI (" Is_Elaborated : Boolean := False;"); 2588 2589 -- Generate bind environment string 2590 2591 Gen_Bind_Env_String; 2592 end if; 2593 2594 WBI (""); 2595 end if; 2596 2597 -- Generate the adafinal routine unless there is no finalization to do 2598 2599 if not Cumulative_Restrictions.Set (No_Finalization) then 2600 if Needs_Library_Finalization then 2601 Gen_Finalize_Library (Elab_Order); 2602 end if; 2603 2604 Gen_Adafinal; 2605 end if; 2606 2607 Gen_Adainit (Elab_Order); 2608 2609 if Bind_Main_Program then 2610 Gen_Main; 2611 end if; 2612 2613 -- Output object file list and the Ada body is complete 2614 2615 Gen_Object_Files_Options (Elab_Order); 2616 2617 WBI (""); 2618 WBI ("end " & Ada_Main & ";"); 2619 2620 Close_Binder_Output; 2621 end Gen_Output_File_Ada; 2622 2623 ---------------------- 2624 -- Gen_Restrictions -- 2625 ---------------------- 2626 2627 procedure Gen_Restrictions is 2628 Count : Integer; 2629 2630 begin 2631 if Suppress_Standard_Library_On_Target 2632 or not System_Restrictions_Used 2633 then 2634 return; 2635 end if; 2636 2637 WBI (" System.Restrictions.Run_Time_Restrictions :="); 2638 WBI (" (Set =>"); 2639 Set_String (" ("); 2640 2641 Count := 0; 2642 2643 for J in Cumulative_Restrictions.Set'Range loop 2644 Set_Boolean (Cumulative_Restrictions.Set (J)); 2645 Set_String (", "); 2646 Count := Count + 1; 2647 2648 if J /= Cumulative_Restrictions.Set'Last and then Count = 8 then 2649 Write_Statement_Buffer; 2650 Set_String (" "); 2651 Count := 0; 2652 end if; 2653 end loop; 2654 2655 Set_String_Replace ("),"); 2656 Write_Statement_Buffer; 2657 Set_String (" Value => ("); 2658 2659 for J in Cumulative_Restrictions.Value'Range loop 2660 Set_Int (Int (Cumulative_Restrictions.Value (J))); 2661 Set_String (", "); 2662 end loop; 2663 2664 Set_String_Replace ("),"); 2665 Write_Statement_Buffer; 2666 WBI (" Violated =>"); 2667 Set_String (" ("); 2668 Count := 0; 2669 2670 for J in Cumulative_Restrictions.Violated'Range loop 2671 Set_Boolean (Cumulative_Restrictions.Violated (J)); 2672 Set_String (", "); 2673 Count := Count + 1; 2674 2675 if J /= Cumulative_Restrictions.Set'Last and then Count = 8 then 2676 Write_Statement_Buffer; 2677 Set_String (" "); 2678 Count := 0; 2679 end if; 2680 end loop; 2681 2682 Set_String_Replace ("),"); 2683 Write_Statement_Buffer; 2684 Set_String (" Count => ("); 2685 2686 for J in Cumulative_Restrictions.Count'Range loop 2687 Set_Int (Int (Cumulative_Restrictions.Count (J))); 2688 Set_String (", "); 2689 end loop; 2690 2691 Set_String_Replace ("),"); 2692 Write_Statement_Buffer; 2693 Set_String (" Unknown => ("); 2694 2695 for J in Cumulative_Restrictions.Unknown'Range loop 2696 Set_Boolean (Cumulative_Restrictions.Unknown (J)); 2697 Set_String (", "); 2698 end loop; 2699 2700 Set_String_Replace ("))"); 2701 Set_String (";"); 2702 Write_Statement_Buffer; 2703 end Gen_Restrictions; 2704 2705 ------------------ 2706 -- Gen_Versions -- 2707 ------------------ 2708 2709 -- This routine generates lines such as: 2710 2711 -- unnnnn : constant Integer := 16#hhhhhhhh#; 2712 -- pragma Export (C, unnnnn, unam); 2713 2714 -- for each unit, where unam is the unit name suffixed by either B or S for 2715 -- body or spec, with dots replaced by double underscores, and hhhhhhhh is 2716 -- the version number, and nnnnn is a 5-digits serial number. 2717 2718 procedure Gen_Versions is 2719 Ubuf : String (1 .. 6) := "u00000"; 2720 2721 procedure Increment_Ubuf; 2722 -- Little procedure to increment the serial number 2723 2724 -------------------- 2725 -- Increment_Ubuf -- 2726 -------------------- 2727 2728 procedure Increment_Ubuf is 2729 begin 2730 for J in reverse Ubuf'Range loop 2731 Ubuf (J) := Character'Succ (Ubuf (J)); 2732 exit when Ubuf (J) <= '9'; 2733 Ubuf (J) := '0'; 2734 end loop; 2735 end Increment_Ubuf; 2736 2737 -- Start of processing for Gen_Versions 2738 2739 begin 2740 WBI (""); 2741 2742 WBI (" type Version_32 is mod 2 ** 32;"); 2743 for U in Units.First .. Units.Last loop 2744 if not Units.Table (U).SAL_Interface 2745 and then (not Bind_For_Library 2746 or else Units.Table (U).Directly_Scanned) 2747 then 2748 Increment_Ubuf; 2749 WBI (" " & Ubuf & " : constant Version_32 := 16#" & 2750 Units.Table (U).Version & "#;"); 2751 Set_String (" pragma Export (C, "); 2752 Set_String (Ubuf); 2753 Set_String (", """); 2754 2755 Get_Name_String (Units.Table (U).Uname); 2756 2757 for K in 1 .. Name_Len loop 2758 if Name_Buffer (K) = '.' then 2759 Set_Char ('_'); 2760 Set_Char ('_'); 2761 2762 elsif Name_Buffer (K) = '%' then 2763 exit; 2764 2765 else 2766 Set_Char (Name_Buffer (K)); 2767 end if; 2768 end loop; 2769 2770 if Name_Buffer (Name_Len) = 's' then 2771 Set_Char ('S'); 2772 else 2773 Set_Char ('B'); 2774 end if; 2775 2776 Set_String (""");"); 2777 Write_Statement_Buffer; 2778 end if; 2779 end loop; 2780 end Gen_Versions; 2781 2782 ------------------------ 2783 -- Get_Main_Unit_Name -- 2784 ------------------------ 2785 2786 function Get_Main_Unit_Name (S : String) return String is 2787 Result : String := S; 2788 2789 begin 2790 for J in S'Range loop 2791 if Result (J) = '.' then 2792 Result (J) := '_'; 2793 end if; 2794 end loop; 2795 2796 return Result; 2797 end Get_Main_Unit_Name; 2798 2799 ----------------------- 2800 -- Get_Ada_Main_Name -- 2801 ----------------------- 2802 2803 function Get_Ada_Main_Name return String is 2804 Suffix : constant String := "_00"; 2805 Name : String (1 .. Opt.Ada_Main_Name.all'Length + Suffix'Length) := 2806 Opt.Ada_Main_Name.all & Suffix; 2807 Nlen : Natural; 2808 2809 begin 2810 -- For CodePeer, we want reproducible names (independent of other mains 2811 -- that may or may not be present) that don't collide when analyzing 2812 -- multiple mains and which are easily recognizable as "ada_main" names. 2813 2814 if CodePeer_Mode then 2815 Get_Name_String (Units.Table (First_Unit_Entry).Uname); 2816 2817 return 2818 "ada_main_for_" & 2819 Get_Main_Unit_Name (Name_Buffer (1 .. Name_Len - 2)); 2820 end if; 2821 2822 -- This loop tries the following possibilities in order 2823 -- <Ada_Main> 2824 -- <Ada_Main>_01 2825 -- <Ada_Main>_02 2826 -- .. 2827 -- <Ada_Main>_99 2828 -- where <Ada_Main> is equal to Opt.Ada_Main_Name. By default, 2829 -- it is set to 'ada_main'. 2830 2831 for J in 0 .. 99 loop 2832 if J = 0 then 2833 Nlen := Name'Length - Suffix'Length; 2834 else 2835 Nlen := Name'Length; 2836 Name (Name'Last) := Character'Val (J mod 10 + Character'Pos ('0')); 2837 Name (Name'Last - 1) := 2838 Character'Val (J / 10 + Character'Pos ('0')); 2839 end if; 2840 2841 for K in ALIs.First .. ALIs.Last loop 2842 for L in ALIs.Table (K).First_Unit .. ALIs.Table (K).Last_Unit loop 2843 2844 -- Get unit name, removing %b or %e at end 2845 2846 Get_Name_String (Units.Table (L).Uname); 2847 Name_Len := Name_Len - 2; 2848 2849 if Name_Buffer (1 .. Name_Len) = Name (1 .. Nlen) then 2850 goto Continue; 2851 end if; 2852 end loop; 2853 end loop; 2854 2855 return Name (1 .. Nlen); 2856 2857 <<Continue>> 2858 null; 2859 end loop; 2860 2861 -- If we fall through, just use a peculiar unlikely name 2862 2863 return ("Qwertyuiop"); 2864 end Get_Ada_Main_Name; 2865 2866 ------------------- 2867 -- Get_Main_Name -- 2868 ------------------- 2869 2870 function Get_Main_Name return String is 2871 begin 2872 -- Explicit name given with -M switch 2873 2874 if Bind_Alternate_Main_Name then 2875 return Alternate_Main_Name.all; 2876 2877 -- Case of main program name to be used directly 2878 2879 elsif Use_Ada_Main_Program_Name_On_Target then 2880 2881 -- Get main program name 2882 2883 Get_Name_String (Units.Table (First_Unit_Entry).Uname); 2884 2885 -- If this is a child name, return only the name of the child, since 2886 -- we can't have dots in a nested program name. Note that we do not 2887 -- include the %b at the end of the unit name. 2888 2889 for J in reverse 1 .. Name_Len - 2 loop 2890 if J = 1 or else Name_Buffer (J - 1) = '.' then 2891 return Name_Buffer (J .. Name_Len - 2); 2892 end if; 2893 end loop; 2894 2895 raise Program_Error; -- impossible exit 2896 2897 -- Case where "main" is to be used as default 2898 2899 else 2900 return "main"; 2901 end if; 2902 end Get_Main_Name; 2903 2904 --------------------- 2905 -- Get_WC_Encoding -- 2906 --------------------- 2907 2908 function Get_WC_Encoding return Character is 2909 begin 2910 -- If encoding method specified by -W switch, then return it 2911 2912 if Wide_Character_Encoding_Method_Specified then 2913 return WC_Encoding_Letters (Wide_Character_Encoding_Method); 2914 2915 -- If no main program, and not specified, set brackets, we really have 2916 -- no better choice. If some other encoding is required when there is 2917 -- no main, it must be set explicitly using -Wx. 2918 2919 -- Note: if the ALI file always passed the wide character encoding of 2920 -- every file, then we could use the encoding of the initial specified 2921 -- file, but this information is passed only for potential main 2922 -- programs. We could fix this sometime, but it is a very minor point 2923 -- (wide character default encoding for [Wide_[Wide_]]Text_IO when there 2924 -- is no main program). 2925 2926 elsif No_Main_Subprogram then 2927 return 'b'; 2928 2929 -- Otherwise if there is a main program, take encoding from it 2930 2931 else 2932 return ALIs.Table (ALIs.First).WC_Encoding; 2933 end if; 2934 end Get_WC_Encoding; 2935 2936 ------------------- 2937 -- Has_Finalizer -- 2938 ------------------- 2939 2940 function Has_Finalizer (Elab_Order : Unit_Id_Array) return Boolean is 2941 U : Unit_Record; 2942 Unum : Unit_Id; 2943 2944 begin 2945 for E in reverse Elab_Order'Range loop 2946 Unum := Elab_Order (E); 2947 U := Units.Table (Unum); 2948 2949 -- We are only interested in non-generic packages 2950 2951 if U.Unit_Kind = 'p' 2952 and then U.Has_Finalizer 2953 and then not U.Is_Generic 2954 and then not U.No_Elab 2955 then 2956 return True; 2957 end if; 2958 end loop; 2959 2960 return False; 2961 end Has_Finalizer; 2962 2963 ---------- 2964 -- Hash -- 2965 ---------- 2966 2967 function Hash (Nam : Name_Id) return Header_Num is 2968 begin 2969 return Int (Nam - Names_Low_Bound) rem Header_Num'Last; 2970 end Hash; 2971 2972 ---------------------- 2973 -- Lt_Linker_Option -- 2974 ---------------------- 2975 2976 function Lt_Linker_Option (Op1 : Natural; Op2 : Natural) return Boolean is 2977 begin 2978 -- Sort internal files last 2979 2980 if Linker_Options.Table (Op1).Internal_File 2981 /= 2982 Linker_Options.Table (Op2).Internal_File 2983 then 2984 -- Note: following test uses False < True 2985 2986 return Linker_Options.Table (Op1).Internal_File 2987 < 2988 Linker_Options.Table (Op2).Internal_File; 2989 2990 -- If both internal or both non-internal, sort according to the 2991 -- elaboration position. A unit that is elaborated later should come 2992 -- earlier in the linker options list. 2993 2994 else 2995 return Units.Table (Linker_Options.Table (Op1).Unit).Elab_Position 2996 > 2997 Units.Table (Linker_Options.Table (Op2).Unit).Elab_Position; 2998 end if; 2999 end Lt_Linker_Option; 3000 3001 ------------------------ 3002 -- Move_Linker_Option -- 3003 ------------------------ 3004 3005 procedure Move_Linker_Option (From : Natural; To : Natural) is 3006 begin 3007 Linker_Options.Table (To) := Linker_Options.Table (From); 3008 end Move_Linker_Option; 3009 3010 ---------------------------- 3011 -- Resolve_Binder_Options -- 3012 ---------------------------- 3013 3014 procedure Resolve_Binder_Options (Elab_Order : Unit_Id_Array) is 3015 procedure Check_Package (Var : in out Boolean; Name : String); 3016 -- Set Var to true iff the current identifier in Namet is Name. Do 3017 -- nothing if it doesn't match. This procedure is just a helper to 3018 -- avoid explicitly dealing with length. 3019 3020 ------------------- 3021 -- Check_Package -- 3022 ------------------- 3023 3024 procedure Check_Package (Var : in out Boolean; Name : String) is 3025 begin 3026 if Name_Len = Name'Length 3027 and then Name_Buffer (1 .. Name_Len) = Name 3028 then 3029 Var := True; 3030 end if; 3031 end Check_Package; 3032 3033 -- Start of processing for Resolve_Binder_Options 3034 3035 begin 3036 for E in Elab_Order'Range loop 3037 Get_Name_String (Units.Table (Elab_Order (E)).Uname); 3038 3039 -- This is not a perfect approach, but is the current protocol 3040 -- between the run-time and the binder to indicate that tasking is 3041 -- used: System.OS_Interface should always be used by any tasking 3042 -- application. 3043 3044 Check_Package (With_GNARL, "system.os_interface%s"); 3045 3046 -- Ditto for the use of restricted tasking 3047 3048 Check_Package 3049 (System_Tasking_Restricted_Stages_Used, 3050 "system.tasking.restricted.stages%s"); 3051 3052 -- Ditto for the use of interrupts 3053 3054 Check_Package (System_Interrupts_Used, "system.interrupts%s"); 3055 3056 -- Ditto for the use of dispatching domains 3057 3058 Check_Package 3059 (Dispatching_Domains_Used, 3060 "system.multiprocessors.dispatching_domains%s"); 3061 3062 -- Ditto for the use of restrictions 3063 3064 Check_Package (System_Restrictions_Used, "system.restrictions%s"); 3065 3066 -- Ditto for the use of System.Secondary_Stack 3067 3068 Check_Package 3069 (System_Secondary_Stack_Used, "system.secondary_stack%s"); 3070 3071 -- Ditto for use of an SMP bareboard runtime 3072 3073 Check_Package (System_BB_CPU_Primitives_Multiprocessors_Used, 3074 "system.bb.cpu_primitives.multiprocessors%s"); 3075 3076 -- Ditto for System.Version_Control, which is used for Version and 3077 -- Body_Version attributes. 3078 3079 Check_Package (System_Version_Control_Used, 3080 "system.version_control%s"); 3081 end loop; 3082 end Resolve_Binder_Options; 3083 3084 ------------------ 3085 -- Set_Bind_Env -- 3086 ------------------ 3087 3088 procedure Set_Bind_Env (Key, Value : String) is 3089 begin 3090 -- The lengths of Key and Value are stored as single bytes 3091 3092 if Key'Length > 255 then 3093 Osint.Fail ("bind environment key """ & Key & """ too long"); 3094 end if; 3095 3096 if Value'Length > 255 then 3097 Osint.Fail ("bind environment value """ & Value & """ too long"); 3098 end if; 3099 3100 Bind_Environment.Set (Name_Find (Key), Name_Find (Value)); 3101 end Set_Bind_Env; 3102 3103 ----------------- 3104 -- Set_Boolean -- 3105 ----------------- 3106 3107 procedure Set_Boolean (B : Boolean) is 3108 False_Str : constant String := "False"; 3109 True_Str : constant String := "True"; 3110 3111 begin 3112 if B then 3113 Statement_Buffer (Stm_Last + 1 .. Stm_Last + True_Str'Length) := 3114 True_Str; 3115 Stm_Last := Stm_Last + True_Str'Length; 3116 else 3117 Statement_Buffer (Stm_Last + 1 .. Stm_Last + False_Str'Length) := 3118 False_Str; 3119 Stm_Last := Stm_Last + False_Str'Length; 3120 end if; 3121 end Set_Boolean; 3122 3123 -------------- 3124 -- Set_Char -- 3125 -------------- 3126 3127 procedure Set_Char (C : Character) is 3128 begin 3129 Stm_Last := Stm_Last + 1; 3130 Statement_Buffer (Stm_Last) := C; 3131 end Set_Char; 3132 3133 ------------- 3134 -- Set_Int -- 3135 ------------- 3136 3137 procedure Set_Int (N : Int) is 3138 begin 3139 if N < 0 then 3140 Set_String ("-"); 3141 Set_Int (-N); 3142 3143 else 3144 if N > 9 then 3145 Set_Int (N / 10); 3146 end if; 3147 3148 Stm_Last := Stm_Last + 1; 3149 Statement_Buffer (Stm_Last) := 3150 Character'Val (N mod 10 + Character'Pos ('0')); 3151 end if; 3152 end Set_Int; 3153 3154 ------------------------- 3155 -- Set_IS_Pragma_Table -- 3156 ------------------------- 3157 3158 procedure Set_IS_Pragma_Table is 3159 begin 3160 for F in ALIs.First .. ALIs.Last loop 3161 for K in ALIs.Table (F).First_Interrupt_State .. 3162 ALIs.Table (F).Last_Interrupt_State 3163 loop 3164 declare 3165 Inum : constant Int := 3166 Interrupt_States.Table (K).Interrupt_Id; 3167 Stat : constant Character := 3168 Interrupt_States.Table (K).Interrupt_State; 3169 3170 begin 3171 while IS_Pragma_Settings.Last < Inum loop 3172 IS_Pragma_Settings.Append ('n'); 3173 end loop; 3174 3175 IS_Pragma_Settings.Table (Inum) := Stat; 3176 end; 3177 end loop; 3178 end loop; 3179 end Set_IS_Pragma_Table; 3180 3181 --------------------------- 3182 -- Set_Main_Program_Name -- 3183 --------------------------- 3184 3185 procedure Set_Main_Program_Name is 3186 begin 3187 -- Note that name has %b on the end which we ignore 3188 3189 -- First we output the initial _ada_ since we know that the main program 3190 -- is a library level subprogram. 3191 3192 Set_String ("_ada_"); 3193 3194 -- Copy name, changing dots to double underscores 3195 3196 for J in 1 .. Name_Len - 2 loop 3197 if Name_Buffer (J) = '.' then 3198 Set_String ("__"); 3199 else 3200 Set_Char (Name_Buffer (J)); 3201 end if; 3202 end loop; 3203 end Set_Main_Program_Name; 3204 3205 --------------------- 3206 -- Set_Name_Buffer -- 3207 --------------------- 3208 3209 procedure Set_Name_Buffer is 3210 begin 3211 for J in 1 .. Name_Len loop 3212 Set_Char (Name_Buffer (J)); 3213 end loop; 3214 end Set_Name_Buffer; 3215 3216 ------------------------- 3217 -- Set_PSD_Pragma_Table -- 3218 ------------------------- 3219 3220 procedure Set_PSD_Pragma_Table is 3221 begin 3222 for F in ALIs.First .. ALIs.Last loop 3223 for K in ALIs.Table (F).First_Specific_Dispatching .. 3224 ALIs.Table (F).Last_Specific_Dispatching 3225 loop 3226 declare 3227 DTK : Specific_Dispatching_Record 3228 renames Specific_Dispatching.Table (K); 3229 3230 begin 3231 while PSD_Pragma_Settings.Last < DTK.Last_Priority loop 3232 PSD_Pragma_Settings.Append ('F'); 3233 end loop; 3234 3235 for Prio in DTK.First_Priority .. DTK.Last_Priority loop 3236 PSD_Pragma_Settings.Table (Prio) := DTK.Dispatching_Policy; 3237 end loop; 3238 end; 3239 end loop; 3240 end loop; 3241 end Set_PSD_Pragma_Table; 3242 3243 ---------------- 3244 -- Set_String -- 3245 ---------------- 3246 3247 procedure Set_String (S : String) is 3248 begin 3249 Statement_Buffer (Stm_Last + 1 .. Stm_Last + S'Length) := S; 3250 Stm_Last := Stm_Last + S'Length; 3251 end Set_String; 3252 3253 ------------------------ 3254 -- Set_String_Replace -- 3255 ------------------------ 3256 3257 procedure Set_String_Replace (S : String) is 3258 begin 3259 Statement_Buffer (Stm_Last - S'Length + 1 .. Stm_Last) := S; 3260 end Set_String_Replace; 3261 3262 ------------------- 3263 -- Set_Unit_Name -- 3264 ------------------- 3265 3266 procedure Set_Unit_Name is 3267 begin 3268 for J in 1 .. Name_Len - 2 loop 3269 if Name_Buffer (J) = '.' then 3270 Set_String ("__"); 3271 else 3272 Set_Char (Name_Buffer (J)); 3273 end if; 3274 end loop; 3275 end Set_Unit_Name; 3276 3277 --------------------- 3278 -- Set_Unit_Number -- 3279 --------------------- 3280 3281 procedure Set_Unit_Number (U : Unit_Id) is 3282 Num_Units : constant Nat := Nat (Units.Last) - Nat (Unit_Id'First); 3283 Unum : constant Nat := Nat (U) - Nat (Unit_Id'First); 3284 3285 begin 3286 if Num_Units >= 10 and then Unum < 10 then 3287 Set_Char ('0'); 3288 end if; 3289 3290 if Num_Units >= 100 and then Unum < 100 then 3291 Set_Char ('0'); 3292 end if; 3293 3294 Set_Int (Unum); 3295 end Set_Unit_Number; 3296 3297 --------------------- 3298 -- Write_Bind_Line -- 3299 --------------------- 3300 3301 procedure Write_Bind_Line (S : String) is 3302 begin 3303 -- Need to strip trailing LF from S 3304 3305 WBI (S (S'First .. S'Last - 1)); 3306 end Write_Bind_Line; 3307 3308 ---------------------------- 3309 -- Write_Statement_Buffer -- 3310 ---------------------------- 3311 3312 procedure Write_Statement_Buffer is 3313 begin 3314 WBI (Statement_Buffer (1 .. Stm_Last)); 3315 Stm_Last := 0; 3316 end Write_Statement_Buffer; 3317 3318 procedure Write_Statement_Buffer (S : String) is 3319 begin 3320 Set_String (S); 3321 Write_Statement_Buffer; 3322 end Write_Statement_Buffer; 3323 3324end Bindgen; 3325