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