1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2011, Free Software Foundation, Inc. --
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. --
21 -- GNAT was originally developed by the GNAT team at New York University. --
22 -- Extensive contributions were provided by Ada Core Technologies Inc. --
24 ------------------------------------------------------------------------------
27 with Binde; use Binde;
28 with Casing; use Casing;
29 with Fname; use Fname;
30 with Gnatvsn; use Gnatvsn;
32 with Namet; use Namet;
34 with Osint; use Osint;
35 with Osint.B; use Osint.B;
36 with Output; use Output;
37 with Rident; use Rident;
38 with Table; use Table;
39 with Targparm; use Targparm;
40 with Types; use Types;
42 with System.OS_Lib; use System.OS_Lib;
43 with System.WCh_Con; use System.WCh_Con;
45 with GNAT.Heap_Sort_A; use GNAT.Heap_Sort_A;
47 package body Bindgen is
49 Statement_Buffer : String (1 .. 1000);
50 -- Buffer used for constructing output statements
53 -- Last location in Statement_Buffer currently set
55 With_DECGNAT : Boolean := False;
56 -- Flag which indicates whether the program uses the DECGNAT library
57 -- (presence of the unit DEC).
59 With_GNARL : Boolean := False;
60 -- Flag which indicates whether the program uses the GNARL library
61 -- (presence of the unit System.OS_Interface)
63 Num_Elab_Calls : Nat := 0;
64 -- Number of generated calls to elaboration routines
66 System_Restrictions_Used : Boolean;
67 -- Flag indicating whether the unit System.Restrictions is in the closure
68 -- of the partition. This is set by Check_System_Restrictions_Used, and
69 -- is used to determine whether or not to initialize the restrictions
70 -- information in the body of the binder generated file (we do not want
71 -- to do this unconditionally, since it drags in the System.Restrictions
72 -- unit unconditionally, which is unpleasand, especially for ZFP etc.)
74 Dispatching_Domains_Used : Boolean;
75 -- Flag indicating whether multiprocessor dispatching domains are used in
76 -- the closure of the partition. This is set by
77 -- Check_Dispatching_Domains_Used, and is used to call the routine to
78 -- disallow the creation of new dispatching domains just before calling
79 -- the main procedure from the environment task.
81 Lib_Final_Built : Boolean := False;
82 -- Flag indicating whether the finalize_library rountine has been built
84 CodePeer_Wrapper_Name : constant String := "call_main_subprogram";
85 -- For CodePeer, introduce a wrapper subprogram which calls the
86 -- user-defined main subprogram.
88 ----------------------------------
89 -- Interface_State Pragma Table --
90 ----------------------------------
92 -- This table assembles the interface state pragma information from
93 -- all the units in the partition. Note that Bcheck has already checked
94 -- that the information is consistent across units. The entries
95 -- in this table are n/u/r/s for not set/user/runtime/system.
97 package IS_Pragma_Settings is new Table.Table (
98 Table_Component_Type => Character,
99 Table_Index_Type => Int,
100 Table_Low_Bound => 0,
101 Table_Initial => 100,
102 Table_Increment => 200,
103 Table_Name => "IS_Pragma_Settings");
105 -- This table assembles the Priority_Specific_Dispatching pragma
106 -- information from all the units in the partition. Note that Bcheck has
107 -- already checked that the information is consistent across units.
108 -- The entries in this table are the upper case first character of the
109 -- policy name, e.g. 'F' for FIFO_Within_Priorities.
111 package PSD_Pragma_Settings is new Table.Table (
112 Table_Component_Type => Character,
113 Table_Index_Type => Int,
114 Table_Low_Bound => 0,
115 Table_Initial => 100,
116 Table_Increment => 200,
117 Table_Name => "PSD_Pragma_Settings");
119 ----------------------
120 -- Run-Time Globals --
121 ----------------------
123 -- This section documents the global variables that set from the
124 -- generated binder file.
126 -- Main_Priority : Integer;
127 -- Time_Slice_Value : Integer;
128 -- Heap_Size : Natural;
129 -- WC_Encoding : Character;
130 -- Locking_Policy : Character;
131 -- Queuing_Policy : Character;
132 -- Task_Dispatching_Policy : Character;
133 -- Priority_Specific_Dispatching : System.Address;
134 -- Num_Specific_Dispatching : Integer;
135 -- Restrictions : System.Address;
136 -- Interrupt_States : System.Address;
137 -- Num_Interrupt_States : Integer;
138 -- Unreserve_All_Interrupts : Integer;
139 -- Exception_Tracebacks : Integer;
140 -- Zero_Cost_Exceptions : Integer;
141 -- Detect_Blocking : Integer;
142 -- Default_Stack_Size : Integer;
143 -- Leap_Seconds_Support : Integer;
144 -- Main_CPU : Integer;
146 -- Main_Priority is the priority value set by pragma Priority in the main
147 -- program. If no such pragma is present, the value is -1.
149 -- Time_Slice_Value is the time slice value set by pragma Time_Slice in the
150 -- main program, or by the use of a -Tnnn parameter for the binder (if both
151 -- are present, the binder value overrides). The value is in milliseconds.
152 -- A value of zero indicates that time slicing should be suppressed. If no
153 -- pragma is present, and no -T switch was used, the value is -1.
155 -- Heap_Size is the heap to use for memory allocations set by use of a
156 -- -Hnn parameter for the binder or by the GNAT$NO_MALLOC_64 logical.
157 -- Valid values are 32 and 64. This switch is only effective on VMS.
159 -- WC_Encoding shows the wide character encoding method used for the main
160 -- program. This is one of the encoding letters defined in
161 -- System.WCh_Con.WC_Encoding_Letters.
163 -- Locking_Policy is a space if no locking policy was specified for the
164 -- partition. If a locking policy was specified, the value is the upper
165 -- case first character of the locking policy name, for example, 'C' for
168 -- Queuing_Policy is a space if no queuing policy was specified for the
169 -- partition. If a queuing policy was specified, the value is the upper
170 -- case first character of the queuing policy name for example, 'F' for
173 -- Task_Dispatching_Policy is a space if no task dispatching policy was
174 -- specified for the partition. If a task dispatching policy was specified,
175 -- the value is the upper case first character of the policy name, e.g. 'F'
176 -- for FIFO_Within_Priorities.
178 -- Priority_Specific_Dispatching is the address of a string used to store
179 -- the task dispatching policy specified for the different priorities in
180 -- the partition. The length of this string is determined by the last
181 -- priority for which such a pragma applies (the string will be a null
182 -- string if no specific dispatching policies were used). If pragma were
183 -- present, the entries apply to the priorities in sequence from the first
184 -- priority. The value stored is the upper case first character of the
185 -- policy name, or 'F' (for FIFO_Within_Priorities) as the default value
186 -- for those priority ranges not specified.
188 -- Num_Specific_Dispatching is length of the Priority_Specific_Dispatching
189 -- string. It will be set to zero if no Priority_Specific_Dispatching
190 -- pragmas are present.
192 -- Restrictions is the address of a null-terminated string specifying the
193 -- restrictions information for the partition. The format is identical to
194 -- that of the parameter string found on R lines in ali files (see Lib.Writ
195 -- spec in lib-writ.ads for full details). The difference is that in this
196 -- context the values are the cumulative ones for the entire partition.
198 -- Interrupt_States is the address of a string used to specify the
199 -- cumulative results of Interrupt_State pragmas used in the partition.
200 -- The length of this string is determined by the last interrupt for which
201 -- such a pragma is given (the string will be a null string if no pragmas
202 -- were used). If pragma were present the entries apply to the interrupts
203 -- in sequence from the first interrupt, and are set to one of four
204 -- possible settings: 'n' for not specified, 'u' for user, 'r' for run
205 -- time, 's' for system, see description of Interrupt_State pragma for
208 -- Num_Interrupt_States is the length of the Interrupt_States string. It
209 -- will be set to zero if no Interrupt_State pragmas are present.
211 -- Unreserve_All_Interrupts is set to one if at least one unit in the
212 -- partition had a pragma Unreserve_All_Interrupts, and zero otherwise.
214 -- Exception_Tracebacks is set to one if the -E parameter was present
215 -- in the bind and to zero otherwise. Note that on some targets exception
216 -- tracebacks are provided by default, so a value of zero for this
217 -- parameter does not necessarily mean no trace backs are available.
219 -- Zero_Cost_Exceptions is set to one if zero cost exceptions are used for
220 -- this partition, and to zero if longjmp/setjmp exceptions are used.
222 -- Detect_Blocking indicates whether pragma Detect_Blocking is active or
223 -- not. A value of zero indicates that the pragma is not present, while a
224 -- value of 1 signals its presence in the partition.
226 -- Default_Stack_Size is the default stack size used when creating an Ada
227 -- task with no explicit Storage_Size clause.
229 -- Leap_Seconds_Support denotes whether leap seconds have been enabled or
230 -- disabled. A value of zero indicates that leap seconds are turned "off",
231 -- while a value of one signifies "on" status.
233 -- Main_CPU is the processor set by pragma CPU in the main program. If no
234 -- such pragma is present, the value is -1.
236 procedure WBI (Info : String) renames Osint.B.Write_Binder_Info;
237 -- Convenient shorthand used throughout
239 -----------------------
240 -- Local Subprograms --
241 -----------------------
243 procedure Check_File_In_Partition
246 -- If the file indicated by File_Name is in the partition the Flag is set
247 -- to True, False otherwise.
249 procedure Check_System_Restrictions_Used;
250 -- Sets flag System_Restrictions_Used (Set to True if and only if the unit
251 -- System.Restrictions is present in the partition, otherwise False).
253 procedure Check_Dispatching_Domains_Used;
254 -- Sets flag Dispatching_Domains_Used to True when using the unit
255 -- System.Multiprocessors.Dispatching_Domains is present in the partition,
256 -- otherwise set to False.
258 procedure Gen_Adainit;
259 -- Generates the Adainit procedure
261 procedure Gen_Adafinal;
262 -- Generate the Adafinal procedure
264 procedure Gen_CodePeer_Wrapper;
265 -- For CodePeer, generate wrapper which calls user-defined main subprogram
267 procedure Gen_Elab_Calls;
268 -- Generate sequence of elaboration calls
270 procedure Gen_Elab_Externals;
271 -- Generate sequence of external declarations for elaboration
273 procedure Gen_Elab_Order;
274 -- Generate comments showing elaboration order chosen
276 procedure Gen_Finalize_Library;
277 -- Generate a sequence of finalization calls to elaborated packages
280 -- Generate procedure main
282 procedure Gen_Object_Files_Options;
283 -- Output comments containing a list of the full names of the object
284 -- files to be linked and the list of linker options supplied by
285 -- Linker_Options pragmas in the source.
287 procedure Gen_Output_File_Ada (Filename : String);
288 -- Generate Ada output file
290 procedure Gen_Restrictions;
291 -- Generate initialization of restrictions variable
293 procedure Gen_Versions;
294 -- Output series of definitions for unit versions
296 function Get_Ada_Main_Name return String;
297 -- This function is used for the Ada main output to compute a usable name
298 -- for the generated main program. The normal main program name is
299 -- Ada_Main, but this won't work if the user has a unit with this name.
300 -- This function tries Ada_Main first, and if there is such a clash, then
301 -- it tries Ada_Name_01, Ada_Name_02 ... Ada_Name_99 in sequence.
303 function Get_Main_Unit_Name (S : String) return String;
304 -- Return the main unit name corresponding to S by replacing '.' with '_'
306 function Get_Main_Name return String;
307 -- This function is used in the main output case to compute the correct
308 -- external main program. It is "main" by default, unless the flag
309 -- Use_Ada_Main_Program_Name_On_Target is set, in which case it is the name
310 -- of the Ada main name without the "_ada". This default can be overridden
311 -- explicitly using the -Mname binder switch.
313 function Get_WC_Encoding return Character;
314 -- Return wide character encoding method to set as WC_Encoding in output.
315 -- If -W has been used, returns the specified encoding, otherwise returns
316 -- the encoding method used for the main program source. If there is no
317 -- main program source (-z switch used), returns brackets ('b').
319 function Has_Finalizer return Boolean;
320 -- Determine whether the current unit has at least one library-level
323 function Lt_Linker_Option (Op1, Op2 : Natural) return Boolean;
324 -- Compare linker options, when sorting, first according to
325 -- Is_Internal_File (internal files come later) and then by
326 -- elaboration order position (latest to earliest).
328 procedure Move_Linker_Option (From : Natural; To : Natural);
329 -- Move routine for sorting linker options
331 procedure Resolve_Binder_Options;
332 -- Set the value of With_GNARL and With_DECGNAT. The latter only on VMS
333 -- since it tests for a package named "dec" which might cause a conflict
334 -- on non-VMS systems.
336 procedure Set_Char (C : Character);
337 -- Set given character in Statement_Buffer at the Last + 1 position
338 -- and increment Last by one to reflect the stored character.
340 procedure Set_Int (N : Int);
341 -- Set given value in decimal in Statement_Buffer with no spaces
342 -- starting at the Last + 1 position, and updating Last past the value.
343 -- A minus sign is output for a negative value.
345 procedure Set_Boolean (B : Boolean);
346 -- Set given boolean value in Statement_Buffer at the Last + 1 position
347 -- and update Last past the value.
349 procedure Set_IS_Pragma_Table;
350 -- Initializes contents of IS_Pragma_Settings table from ALI table
352 procedure Set_Main_Program_Name;
353 -- Given the main program name in Name_Buffer (length in Name_Len)
354 -- generate the name of the routine to be used in the call. The name
355 -- is generated starting at Last + 1, and Last is updated past it.
357 procedure Set_Name_Buffer;
358 -- Set the value stored in positions 1 .. Name_Len of the Name_Buffer
360 procedure Set_PSD_Pragma_Table;
361 -- Initializes contents of PSD_Pragma_Settings table from ALI table
363 procedure Set_String (S : String);
364 -- Sets characters of given string in Statement_Buffer, starting at the
365 -- Last + 1 position, and updating last past the string value.
367 procedure Set_String_Replace (S : String);
368 -- Replaces the last S'Length characters in the Statement_Buffer with
369 -- the characters of S. The caller must ensure that these characters do
370 -- in fact exist in the Statement_Buffer.
372 type Qualification_Mode is (Dollar_Sign, Dot, Double_Underscores);
374 procedure Set_Unit_Name (Mode : Qualification_Mode := Double_Underscores);
375 -- Given a unit name in the Name_Buffer, copy it into Statement_Buffer,
376 -- starting at the Last + 1 position and update Last past the value.
377 -- Depending on parameter Mode, a dot (.) can be qualified into double
378 -- underscores (__), a dollar sign ($) or left as is.
380 procedure Set_Unit_Number (U : Unit_Id);
381 -- Sets unit number (first unit is 1, leading zeroes output to line
382 -- up all output unit numbers nicely as required by the value, and
383 -- by the total number of units.
385 procedure Write_Statement_Buffer;
386 -- Write out contents of statement buffer up to Last, and reset Last to 0
388 procedure Write_Statement_Buffer (S : String);
389 -- First writes its argument (using Set_String (S)), then writes out the
390 -- contents of statement buffer up to Last, and reset Last to 0
392 ------------------------------------
393 -- Check_Dispatching_Domains_Used --
394 ------------------------------------
396 procedure Check_Dispatching_Domains_Used is
398 Check_File_In_Partition ("s-mudido.ads", Dispatching_Domains_Used);
399 end Check_Dispatching_Domains_Used;
401 -----------------------------
402 -- Check_File_In_Partition --
403 -----------------------------
405 procedure Check_File_In_Partition
410 for J in Units.First .. Units.Last loop
411 if Get_Name_String (Units.Table (J).Sfile) = File_Name then
418 end Check_File_In_Partition;
420 ------------------------------------
421 -- Check_System_Restrictions_Used --
422 ------------------------------------
424 procedure Check_System_Restrictions_Used is
426 Check_File_In_Partition ("s-restri.ads", System_Restrictions_Used);
427 end Check_System_Restrictions_Used;
433 procedure Gen_Adafinal is
435 WBI (" procedure " & Ada_Final_Name.all & " is");
438 and Bind_Main_Program
439 and not CodePeer_Mode
441 WBI (" procedure s_stalib_adafinal;");
442 Set_String (" pragma Import (C, s_stalib_adafinal, ");
443 Set_String ("""system__standard_library__adafinal"");");
444 Write_Statement_Buffer;
449 if not CodePeer_Mode then
450 WBI (" if not Is_Elaborated then");
453 WBI (" Is_Elaborated := False;");
456 -- On non-virtual machine targets, finalization is done differently
457 -- depending on whether this is the main program or a library.
459 if VM_Target = No_VM and then not CodePeer_Mode then
460 if Bind_Main_Program then
461 WBI (" s_stalib_adafinal;");
462 elsif Lib_Final_Built then
463 WBI (" finalize_library;");
468 -- Pragma Import C cannot be used on virtual machine targets, therefore
469 -- call the runtime finalization routine directly. Similarly in CodePeer
470 -- mode, where imported functions are ignored.
473 WBI (" System.Standard_Library.Adafinal;");
476 WBI (" end " & Ada_Final_Name.all & ";");
484 procedure Gen_Adainit is
485 Main_Priority : Int renames ALIs.Table (ALIs.First).Main_Priority;
486 Main_CPU : Int renames ALIs.Table (ALIs.First).Main_CPU;
489 -- Declare the access-to-subprogram type used for initialization of
490 -- of __gnat_finalize_library_objects. This is declared at library
491 -- level for compatibility with the type used in System.Soft_Links.
492 -- The import of the soft link which performs library-level object
493 -- finalization is not needed for VM targets; regular Ada is used in
494 -- that case. For restricted run-time libraries (ZFP and Ravenscar)
495 -- tasks are non-terminating, so we do not want finalization.
497 if not Suppress_Standard_Library_On_Target
498 and then VM_Target = No_VM
499 and then not CodePeer_Mode
500 and then not Configurable_Run_Time_On_Target
502 WBI (" type No_Param_Proc is access procedure;");
506 WBI (" procedure " & Ada_Init_Name.all & " is");
508 -- In CodePeer mode, simplify adainit procedure by only calling
509 -- elaboration procedures.
511 if CodePeer_Mode then
514 -- If the standard library is suppressed, then the only global variables
515 -- that might be needed (by the Ravenscar profile) are the priority and
516 -- the processor for the environment task.
518 elsif Suppress_Standard_Library_On_Target then
519 if Main_Priority /= No_Main_Priority then
520 WBI (" Main_Priority : Integer;");
521 WBI (" pragma Import (C, Main_Priority," &
522 " ""__gl_main_priority"");");
526 if Main_CPU /= No_Main_CPU then
527 WBI (" Main_CPU : Integer;");
528 WBI (" pragma Import (C, Main_CPU," &
529 " ""__gl_main_cpu"");");
535 if Main_Priority /= No_Main_Priority then
536 Set_String (" Main_Priority := ");
537 Set_Int (Main_Priority);
539 Write_Statement_Buffer;
542 if Main_CPU /= No_Main_CPU then
543 Set_String (" Main_CPU := ");
546 Write_Statement_Buffer;
549 if Main_Priority = No_Main_Priority
550 and then Main_CPU = No_Main_CPU
555 -- Normal case (standard library not suppressed). Set all global values
556 -- used by the run time.
559 WBI (" Main_Priority : Integer;");
560 WBI (" pragma Import (C, Main_Priority, " &
561 """__gl_main_priority"");");
562 WBI (" Time_Slice_Value : Integer;");
563 WBI (" pragma Import (C, Time_Slice_Value, " &
564 """__gl_time_slice_val"");");
565 WBI (" WC_Encoding : Character;");
566 WBI (" pragma Import (C, WC_Encoding, ""__gl_wc_encoding"");");
567 WBI (" Locking_Policy : Character;");
568 WBI (" pragma Import (C, Locking_Policy, " &
569 """__gl_locking_policy"");");
570 WBI (" Queuing_Policy : Character;");
571 WBI (" pragma Import (C, Queuing_Policy, " &
572 """__gl_queuing_policy"");");
573 WBI (" Task_Dispatching_Policy : Character;");
574 WBI (" pragma Import (C, Task_Dispatching_Policy, " &
575 """__gl_task_dispatching_policy"");");
576 WBI (" Priority_Specific_Dispatching : System.Address;");
577 WBI (" pragma Import (C, Priority_Specific_Dispatching, " &
578 """__gl_priority_specific_dispatching"");");
579 WBI (" Num_Specific_Dispatching : Integer;");
580 WBI (" pragma Import (C, Num_Specific_Dispatching, " &
581 """__gl_num_specific_dispatching"");");
582 WBI (" Main_CPU : Integer;");
583 WBI (" pragma Import (C, Main_CPU, " &
584 """__gl_main_cpu"");");
586 WBI (" Interrupt_States : System.Address;");
587 WBI (" pragma Import (C, Interrupt_States, " &
588 """__gl_interrupt_states"");");
589 WBI (" Num_Interrupt_States : Integer;");
590 WBI (" pragma Import (C, Num_Interrupt_States, " &
591 """__gl_num_interrupt_states"");");
592 WBI (" Unreserve_All_Interrupts : Integer;");
593 WBI (" pragma Import (C, Unreserve_All_Interrupts, " &
594 """__gl_unreserve_all_interrupts"");");
596 if Exception_Tracebacks then
597 WBI (" Exception_Tracebacks : Integer;");
598 WBI (" pragma Import (C, Exception_Tracebacks, " &
599 """__gl_exception_tracebacks"");");
602 WBI (" Zero_Cost_Exceptions : Integer;");
603 WBI (" pragma Import (C, Zero_Cost_Exceptions, " &
604 """__gl_zero_cost_exceptions"");");
605 WBI (" Detect_Blocking : Integer;");
606 WBI (" pragma Import (C, Detect_Blocking, " &
607 """__gl_detect_blocking"");");
608 WBI (" Default_Stack_Size : Integer;");
609 WBI (" pragma Import (C, Default_Stack_Size, " &
610 """__gl_default_stack_size"");");
611 WBI (" Leap_Seconds_Support : Integer;");
612 WBI (" pragma Import (C, Leap_Seconds_Support, " &
613 """__gl_leap_seconds_support"");");
615 -- Import entry point for elaboration time signal handler
616 -- installation, and indication of if it's been called previously.
619 WBI (" procedure Install_Handler;");
620 WBI (" pragma Import (C, Install_Handler, " &
621 """__gnat_install_handler"");");
623 WBI (" Handler_Installed : Integer;");
624 WBI (" pragma Import (C, Handler_Installed, " &
625 """__gnat_handler_installed"");");
627 -- The import of the soft link which performs library-level object
628 -- finalization is not needed for VM targets; regular Ada is used in
629 -- that case. For restricted run-time libraries (ZFP and Ravenscar)
630 -- tasks are non-terminating, so we do not want finalization.
632 if VM_Target = No_VM and then not Configurable_Run_Time_On_Target then
634 WBI (" Finalize_Library_Objects : No_Param_Proc;");
635 WBI (" pragma Import (C, Finalize_Library_Objects, " &
636 """__gnat_finalize_library_objects"");");
639 -- Import entry point for environment feature enable/disable
640 -- routine, and indication that it's been called previously.
642 if OpenVMS_On_Target then
644 WBI (" procedure Set_Features;");
645 WBI (" pragma Import (C, Set_Features, " &
646 """__gnat_set_features"");");
648 WBI (" Features_Set : Integer;");
649 WBI (" pragma Import (C, Features_Set, " &
650 """__gnat_features_set"");");
652 if Opt.Heap_Size /= 0 then
654 WBI (" Heap_Size : Integer;");
655 WBI (" pragma Import (C, Heap_Size, " &
656 """__gl_heap_size"");");
658 Write_Statement_Buffer;
662 -- Initialize stack limit variable of the environment task if the
663 -- stack check method is stack limit and stack check is enabled.
665 if Stack_Check_Limits_On_Target
666 and then (Stack_Check_Default_On_Target or Stack_Check_Switch_Set)
669 WBI (" procedure Initialize_Stack_Limit;");
670 WBI (" pragma Import (C, Initialize_Stack_Limit, " &
671 """__gnat_initialize_stack_limit"");");
674 -- Special processing when main program is CIL function/procedure
676 if VM_Target = CLI_Target
677 and then Bind_Main_Program
678 and then not No_Main_Subprogram
682 -- Function case, use Set_Exit_Status to report the returned
683 -- status code, since that is the only mechanism available.
685 if ALIs.Table (ALIs.First).Main_Program = Func then
686 WBI (" Result : Integer;");
687 WBI (" procedure Set_Exit_Status (Code : Integer);");
688 WBI (" pragma Import (C, Set_Exit_Status, " &
689 """__gnat_set_exit_status"");");
691 WBI (" function Ada_Main_Program return Integer;");
696 WBI (" procedure Ada_Main_Program;");
699 Get_Name_String (Units.Table (First_Unit_Entry).Uname);
700 Name_Len := Name_Len - 2;
701 WBI (" pragma Import (CIL, Ada_Main_Program, """
702 & Name_Buffer (1 .. Name_Len) & "."
703 & Get_Main_Unit_Name (Name_Buffer (1 .. Name_Len)) & """);");
706 -- When dispatching domains are used then we need to signal it
707 -- before calling the main procedure.
709 if Dispatching_Domains_Used then
710 WBI (" procedure Freeze_Dispatching_Domains;");
711 WBI (" pragma Import");
712 WBI (" (Ada, Freeze_Dispatching_Domains, " &
713 """__gnat_freeze_dispatching_domains"");");
717 WBI (" if Is_Elaborated then");
720 WBI (" Is_Elaborated := True;");
722 Set_String (" Main_Priority := ");
723 Set_Int (Main_Priority);
725 Write_Statement_Buffer;
727 Set_String (" Time_Slice_Value := ");
729 if Task_Dispatching_Policy_Specified = 'F'
730 and then ALIs.Table (ALIs.First).Time_Slice_Value = -1
734 Set_Int (ALIs.Table (ALIs.First).Time_Slice_Value);
738 Write_Statement_Buffer;
740 Set_String (" WC_Encoding := '");
741 Set_Char (Get_WC_Encoding);
744 Write_Statement_Buffer;
746 Set_String (" Locking_Policy := '");
747 Set_Char (Locking_Policy_Specified);
749 Write_Statement_Buffer;
751 Set_String (" Queuing_Policy := '");
752 Set_Char (Queuing_Policy_Specified);
754 Write_Statement_Buffer;
756 Set_String (" Task_Dispatching_Policy := '");
757 Set_Char (Task_Dispatching_Policy_Specified);
759 Write_Statement_Buffer;
763 WBI (" Priority_Specific_Dispatching :=");
764 WBI (" Local_Priority_Specific_Dispatching'Address;");
766 Set_String (" Num_Specific_Dispatching := ");
767 Set_Int (PSD_Pragma_Settings.Last + 1);
769 Write_Statement_Buffer;
771 Set_String (" Main_CPU := ");
774 Write_Statement_Buffer;
776 WBI (" Interrupt_States := Local_Interrupt_States'Address;");
778 Set_String (" Num_Interrupt_States := ");
779 Set_Int (IS_Pragma_Settings.Last + 1);
781 Write_Statement_Buffer;
783 Set_String (" Unreserve_All_Interrupts := ");
785 if Unreserve_All_Interrupts_Specified then
792 Write_Statement_Buffer;
794 if Exception_Tracebacks then
795 WBI (" Exception_Tracebacks := 1;");
798 Set_String (" Zero_Cost_Exceptions := ");
800 if Zero_Cost_Exceptions_Specified then
807 Write_Statement_Buffer;
809 Set_String (" Detect_Blocking := ");
811 if Detect_Blocking then
818 Write_Statement_Buffer;
820 Set_String (" Default_Stack_Size := ");
821 Set_Int (Default_Stack_Size);
823 Write_Statement_Buffer;
825 Set_String (" Leap_Seconds_Support := ");
827 if Leap_Seconds_Support then
834 Write_Statement_Buffer;
836 -- Generate call to Install_Handler
838 -- In .NET, when binding with -z, we don't install the signal handler
839 -- to let the caller handle the last exception handler.
841 if VM_Target /= CLI_Target
842 or else Bind_Main_Program
845 WBI (" if Handler_Installed = 0 then");
846 WBI (" Install_Handler;");
850 -- Generate call to Set_Features
852 if OpenVMS_On_Target then
854 WBI (" if Features_Set = 0 then");
855 WBI (" Set_Features;");
858 -- Features_Set may twiddle the heap size according to a logical
859 -- name, but the binder switch must override.
861 if Opt.Heap_Size /= 0 then
862 Set_String (" Heap_Size := ");
863 Set_Int (Opt.Heap_Size);
865 Write_Statement_Buffer;
870 -- Generate call to set Initialize_Scalar values if active
872 if Initialize_Scalars_Used then
874 Set_String (" System.Scalar_Values.Initialize ('");
875 Set_Char (Initialize_Scalars_Mode1);
877 Set_Char (Initialize_Scalars_Mode2);
879 Write_Statement_Buffer;
882 -- Generate assignment of default secondary stack size if set
884 if Sec_Stack_Used and then Default_Sec_Stack_Size /= -1 then
886 Set_String (" System.Secondary_Stack.");
887 Set_String ("Default_Secondary_Stack_Size := ");
888 Set_Int (Opt.Default_Sec_Stack_Size);
890 Write_Statement_Buffer;
893 -- Initialize stack limit variable of the environment task if the
894 -- stack check method is stack limit and stack check is enabled.
896 if Stack_Check_Limits_On_Target
897 and then (Stack_Check_Default_On_Target or Stack_Check_Switch_Set)
900 WBI (" Initialize_Stack_Limit;");
903 -- On CodePeer, the finalization of library objects is not relevant
905 if CodePeer_Mode then
908 -- On virtual machine targets, or on non-virtual machine ones if this
909 -- is the main program case, attach finalize_library to the soft link.
910 -- Do it only when not using a restricted run time, in which case tasks
911 -- are non-terminating, so we do not want library-level finalization.
913 elsif (VM_Target /= No_VM or else Bind_Main_Program)
914 and then not Configurable_Run_Time_On_Target
915 and then not Suppress_Standard_Library_On_Target
919 if VM_Target = No_VM then
920 if Lib_Final_Built then
921 Set_String (" Finalize_Library_Objects := ");
922 Set_String ("finalize_library'access;");
924 Set_String (" Finalize_Library_Objects := null;");
927 -- On VM targets use regular Ada to set the soft link
930 if Lib_Final_Built then
932 (" System.Soft_Links.Finalize_Library_Objects");
933 Set_String (" := finalize_library'access;");
936 (" System.Soft_Links.Finalize_Library_Objects");
937 Set_String (" := null;");
941 Write_Statement_Buffer;
944 -- Generate elaboration calls
946 if not CodePeer_Mode then
952 -- From this point, no new dispatching domain can be created.
954 if Dispatching_Domains_Used then
955 WBI (" Freeze_Dispatching_Domains;");
958 -- Case of main program is CIL function or procedure
960 if VM_Target = CLI_Target
961 and then Bind_Main_Program
962 and then not No_Main_Subprogram
964 -- For function case, use Set_Exit_Status to set result
966 if ALIs.Table (ALIs.First).Main_Program = Func then
967 WBI (" Result := Ada_Main_Program;");
968 WBI (" Set_Exit_Status (Result);");
973 WBI (" Ada_Main_Program;");
977 WBI (" end " & Ada_Init_Name.all & ";");
981 --------------------------
982 -- Gen_CodePeer_Wrapper --
983 --------------------------
985 procedure Gen_CodePeer_Wrapper is
986 Callee_Name : constant String := "Ada_Main_Program";
989 if ALIs.Table (ALIs.First).Main_Program = Proc then
990 WBI (" procedure " & CodePeer_Wrapper_Name & " is ");
992 WBI (" " & Callee_Name & ";");
995 WBI (" function " & CodePeer_Wrapper_Name & " return Integer is");
997 WBI (" return " & Callee_Name & ";");
1000 WBI (" end " & CodePeer_Wrapper_Name & ";");
1002 end Gen_CodePeer_Wrapper;
1004 --------------------
1005 -- Gen_Elab_Calls --
1006 --------------------
1008 procedure Gen_Elab_Calls is
1009 Check_Elab_Flag : Boolean;
1012 for E in Elab_Order.First .. Elab_Order.Last loop
1014 Unum : constant Unit_Id := Elab_Order.Table (E);
1015 U : Unit_Record renames Units.Table (Unum);
1017 Unum_Spec : Unit_Id;
1018 -- This is the unit number of the spec that corresponds to
1019 -- this entry. It is the same as Unum except when the body
1020 -- and spec are different and we are currently processing
1021 -- the body, in which case it is the spec (Unum + 1).
1024 if U.Utype = Is_Body then
1025 Unum_Spec := Unum + 1;
1030 -- Nothing to do if predefined unit in no run time mode
1032 if No_Run_Time_Mode and then Is_Predefined_File_Name (U.Sfile) then
1035 -- Likewise if this is an interface to a stand alone library
1037 elsif U.SAL_Interface then
1040 -- Case of no elaboration code
1042 -- In CodePeer mode, we special case subprogram bodies which
1043 -- are handled in the 'else' part below, and lead to a call to
1044 -- <subp>'Elab_Subp_Body.
1047 and then (not CodePeer_Mode
1048 or else U.Utype = Is_Spec
1049 or else U.Utype = Is_Spec_Only
1050 or else U.Unit_Kind /= 's')
1053 -- The only case in which we have to do something is if this
1054 -- is a body, with a separate spec, where the separate spec
1055 -- has an elaboration entity defined. In that case, this is
1056 -- where we increment the elaboration entity.
1058 if U.Utype = Is_Body
1059 and then Units.Table (Unum_Spec).Set_Elab_Entity
1060 and then not CodePeer_Mode
1063 Set_Unit_Number (Unum_Spec);
1064 Set_String (" := E");
1065 Set_Unit_Number (Unum_Spec);
1066 Set_String (" + 1;");
1067 Write_Statement_Buffer;
1070 -- Here if elaboration code is present. If binding a library
1071 -- or if there is a non-Ada main subprogram then we generate:
1073 -- if uname_E = 0 then
1074 -- uname'elab_[spec|body];
1076 -- uname_E := uname_E + 1;
1078 -- Otherwise, elaboration routines are called unconditionally:
1080 -- uname'elab_[spec|body];
1081 -- uname_E := uname_E + 1;
1083 -- The uname_E increment is skipped if this is a separate spec,
1084 -- since it will be done when we process the body.
1086 -- In CodePeer mode, we do not generate any reference to xxx_E
1087 -- variables, only calls to 'Elab* subprograms.
1092 and then (Force_Checking_Of_Elaboration_Flags
1093 or Interface_Library_Unit
1094 or not Bind_Main_Program);
1096 if Check_Elab_Flag then
1097 Set_String (" if E");
1098 Set_Unit_Number (Unum_Spec);
1099 Set_String (" = 0 then");
1100 Write_Statement_Buffer;
1105 Get_Decoded_Name_String_With_Brackets (U.Uname);
1107 if VM_Target = CLI_Target and then U.Unit_Kind /= 's' then
1108 if Name_Buffer (Name_Len) = 's' then
1109 Name_Buffer (Name_Len - 1 .. Name_Len + 12) :=
1112 Name_Buffer (Name_Len - 1 .. Name_Len + 12) :=
1116 Name_Len := Name_Len + 12;
1119 if Name_Buffer (Name_Len) = 's' then
1120 Name_Buffer (Name_Len - 1 .. Name_Len + 8) :=
1122 Name_Len := Name_Len + 8;
1124 -- Special case in CodePeer mode for subprogram bodies
1125 -- which correspond to CodePeer 'Elab_Subp_Body special
1128 elsif U.Unit_Kind = 's' and CodePeer_Mode then
1129 Name_Buffer (Name_Len - 1 .. Name_Len + 13) :=
1131 Name_Len := Name_Len + 13;
1134 Name_Buffer (Name_Len - 1 .. Name_Len + 8) :=
1136 Name_Len := Name_Len + 8;
1140 Set_Casing (U.Icasing);
1143 Write_Statement_Buffer;
1145 if Check_Elab_Flag then
1149 if U.Utype /= Is_Spec
1150 and then not CodePeer_Mode
1153 Set_Unit_Number (Unum_Spec);
1154 Set_String (" := E");
1155 Set_Unit_Number (Unum_Spec);
1156 Set_String (" + 1;");
1157 Write_Statement_Buffer;
1164 ------------------------
1165 -- Gen_Elab_Externals --
1166 ------------------------
1168 procedure Gen_Elab_Externals is
1170 if CodePeer_Mode then
1174 for E in Elab_Order.First .. Elab_Order.Last loop
1176 Unum : constant Unit_Id := Elab_Order.Table (E);
1177 U : Unit_Record renames Units.Table (Unum);
1180 -- Check for Elab_Entity to be set for this unit
1182 if U.Set_Elab_Entity
1184 -- Don't generate reference for stand alone library
1186 and then not U.SAL_Interface
1188 -- Don't generate reference for predefined file in No_Run_Time
1189 -- mode, since we don't include the object files in this case
1193 and then Is_Predefined_File_Name (U.Sfile))
1197 Set_Unit_Number (Unum);
1200 when No_VM | JVM_Target =>
1201 Set_String (" : Short_Integer; pragma Import (Ada, ");
1203 Set_String (" : Short_Integer; pragma Import (CIL, ");
1207 Set_Unit_Number (Unum);
1208 Set_String (", """);
1209 Get_Name_String (U.Uname);
1211 -- In the case of JGNAT we need to emit an Import name that
1212 -- includes the class name (using '$' separators in the case
1213 -- of a child unit name).
1215 if VM_Target /= No_VM then
1216 for J in 1 .. Name_Len - 2 loop
1217 if VM_Target = CLI_Target
1218 or else Name_Buffer (J) /= '.'
1220 Set_Char (Name_Buffer (J));
1226 if VM_Target /= CLI_Target or else U.Unit_Kind = 's' then
1229 Set_String ("_pkg.");
1232 -- If the unit name is very long, then split the
1233 -- Import link name across lines using "&" (occurs
1234 -- in some C2 tests).
1236 if 2 * Name_Len + 60 > Hostparm.Max_Line_Length then
1237 Set_String (""" &");
1238 Write_Statement_Buffer;
1244 Set_String ("_E"");");
1245 Write_Statement_Buffer;
1251 end Gen_Elab_Externals;
1253 --------------------
1254 -- Gen_Elab_Order --
1255 --------------------
1257 procedure Gen_Elab_Order is
1259 WBI (" -- BEGIN ELABORATION ORDER");
1261 for J in Elab_Order.First .. Elab_Order.Last loop
1262 Set_String (" -- ");
1263 Get_Name_String (Units.Table (Elab_Order.Table (J)).Uname);
1265 Write_Statement_Buffer;
1268 WBI (" -- END ELABORATION ORDER");
1272 --------------------------
1273 -- Gen_Finalize_Library --
1274 --------------------------
1276 procedure Gen_Finalize_Library is
1279 Uspec : Unit_Record;
1282 procedure Gen_Header;
1283 -- Generate the header of the finalization routine
1289 procedure Gen_Header is
1291 WBI (" procedure finalize_library is");
1293 -- The following flag is used to check for library-level exceptions
1294 -- raised during finalization. Symbol comes from System.Soft_Links.
1295 -- VM targets use regular Ada to reference the entity.
1297 if VM_Target = No_VM then
1298 WBI (" LE_Set : Boolean;");
1300 Set_String (" pragma Import (Ada, LE_Set, ");
1301 Set_String ("""__gnat_library_exception_set"");");
1302 Write_Statement_Buffer;
1308 -- Start of processing for Gen_Finalize_Library
1311 if CodePeer_Mode then
1315 for E in reverse Elab_Order.First .. Elab_Order.Last loop
1316 Unum := Elab_Order.Table (E);
1317 U := Units.Table (Unum);
1319 -- Dealing with package bodies is a little complicated. In such
1320 -- cases we must retrieve the package spec since it contains the
1321 -- spec of the body finalizer.
1323 if U.Utype = Is_Body then
1325 Uspec := Units.Table (Unum);
1330 Get_Name_String (Uspec.Uname);
1332 -- We are only interested in non-generic packages
1334 if U.Unit_Kind /= 'p' or else U.Is_Generic then
1337 -- That aren't an interface to a stand alone library
1339 elsif U.SAL_Interface then
1342 -- Case of no finalization
1344 elsif not U.Has_Finalizer then
1346 -- The only case in which we have to do something is if this
1347 -- is a body, with a separate spec, where the separate spec
1348 -- has a finalizer. In that case, this is where we decrement
1349 -- the elaboration entity.
1351 if U.Utype = Is_Body and then Uspec.Has_Finalizer then
1352 if not Lib_Final_Built then
1354 Lib_Final_Built := True;
1358 Set_Unit_Number (Unum);
1359 Set_String (" := E");
1360 Set_Unit_Number (Unum);
1361 Set_String (" - 1;");
1362 Write_Statement_Buffer;
1366 if not Lib_Final_Built then
1368 Lib_Final_Built := True;
1373 -- procedure F<Count>;
1375 Set_String (" declare");
1376 Write_Statement_Buffer;
1378 Set_String (" procedure F");
1381 Write_Statement_Buffer;
1384 -- pragma Import (CIL, F<Count>,
1385 -- "xx.yy_pkg.xx__yy__finalize_[body|spec]");
1386 -- -- for .NET targets
1388 -- pragma Import (Java, F<Count>,
1389 -- "xx$yy.xx__yy__finalize_[body|spec]");
1390 -- -- for JVM targets
1392 -- pragma Import (Ada, F<Count>,
1393 -- "xx__yy__finalize_[body|spec]");
1394 -- -- for default targets
1396 if VM_Target = CLI_Target then
1397 Set_String (" pragma Import (CIL, F");
1398 elsif VM_Target = JVM_Target then
1399 Set_String (" pragma Import (Java, F");
1401 Set_String (" pragma Import (Ada, F");
1405 Set_String (", """);
1407 -- Perform name construction
1409 -- .NET xx.yy_pkg.xx__yy__finalize
1411 if VM_Target = CLI_Target then
1412 Set_Unit_Name (Mode => Dot);
1413 Set_String ("_pkg.");
1415 -- JVM xx$yy.xx__yy__finalize
1417 elsif VM_Target = JVM_Target then
1418 Set_Unit_Name (Mode => Dollar_Sign);
1422 -- Default xx__yy__finalize
1425 Set_String ("__finalize_");
1427 -- Package spec processing
1429 if U.Utype = Is_Spec
1430 or else U.Utype = Is_Spec_Only
1432 Set_String ("spec");
1434 -- Package body processing
1437 Set_String ("body");
1440 Set_String (""");");
1441 Write_Statement_Buffer;
1443 -- If binding a library or if there is a non-Ada main subprogram
1444 -- then we generate:
1447 -- uname_E := uname_E - 1;
1448 -- if uname_E = 0 then
1453 -- Otherwise, finalization routines are called unconditionally:
1456 -- uname_E := uname_E - 1;
1460 -- The uname_E decrement is skipped if this is a separate spec,
1461 -- since it will be done when we process the body.
1465 if U.Utype /= Is_Spec then
1467 Set_Unit_Number (Unum);
1468 Set_String (" := E");
1469 Set_Unit_Number (Unum);
1470 Set_String (" - 1;");
1471 Write_Statement_Buffer;
1474 if Interface_Library_Unit or not Bind_Main_Program then
1475 Set_String (" if E");
1476 Set_Unit_Number (Unum);
1477 Set_String (" = 0 then");
1478 Write_Statement_Buffer;
1485 Write_Statement_Buffer;
1487 if Interface_Library_Unit or not Bind_Main_Program then
1497 if Lib_Final_Built then
1499 -- It is possible that the finalization of a library-level object
1500 -- raised an exception. In that case import the actual exception
1501 -- and the routine necessary to raise it.
1503 if VM_Target = No_VM then
1504 WBI (" if LE_Set then");
1506 WBI (" LE : Ada.Exceptions.Exception_Occurrence;");
1508 Set_String (" pragma Import (Ada, LE, ");
1509 Set_String ("""__gnat_library_exception"");");
1510 Write_Statement_Buffer;
1512 Set_String (" procedure Raise_From_Controlled_");
1513 Set_String ("Operation (X : Ada.Exceptions.Exception_");
1514 Set_String ("Occurrence);");
1515 Write_Statement_Buffer;
1517 Set_String (" pragma Import (Ada, Raise_From_");
1518 Set_String ("Controlled_Operation, ");
1519 Set_String ("""__gnat_raise_from_controlled_operation"");");
1520 Write_Statement_Buffer;
1523 WBI (" Raise_From_Controlled_Operation (LE);");
1526 -- VM-specific code, use regular Ada to produce the desired behavior
1529 WBI (" if System.Soft_Links.Library_Exception_Set then");
1531 Set_String (" Ada.Exceptions.Reraise_Occurrence (");
1532 Set_String ("System.Soft_Links.Library_Exception);");
1533 Write_Statement_Buffer;
1537 WBI (" end finalize_library;");
1540 end Gen_Finalize_Library;
1546 procedure Gen_Main is
1548 if not No_Main_Subprogram then
1550 -- To call the main program, we declare it using a pragma Import
1551 -- Ada with the right link name.
1553 -- It might seem more obvious to "with" the main program, and call
1554 -- it in the normal Ada manner. We do not do this for three
1557 -- 1. It is more efficient not to recompile the main program
1558 -- 2. We are not entitled to assume the source is accessible
1559 -- 3. We don't know what options to use to compile it
1561 -- It is really reason 3 that is most critical (indeed we used
1562 -- to generate the "with", but several regression tests failed).
1564 if ALIs.Table (ALIs.First).Main_Program = Func then
1565 WBI (" function Ada_Main_Program return Integer;");
1567 WBI (" procedure Ada_Main_Program;");
1570 Set_String (" pragma Import (Ada, Ada_Main_Program, """);
1571 Get_Name_String (Units.Table (First_Unit_Entry).Uname);
1572 Set_Main_Program_Name;
1573 Set_String (""");");
1575 Write_Statement_Buffer;
1578 -- For CodePeer, declare a wrapper for the user-defined main program
1580 if CodePeer_Mode then
1581 Gen_CodePeer_Wrapper;
1585 if Exit_Status_Supported_On_Target then
1586 Set_String (" function ");
1588 Set_String (" procedure ");
1591 Set_String (Get_Main_Name);
1593 if Command_Line_Args_On_Target then
1594 Write_Statement_Buffer;
1595 WBI (" (argc : Integer;");
1596 WBI (" argv : System.Address;");
1597 WBI (" envp : System.Address)");
1599 if Exit_Status_Supported_On_Target then
1600 WBI (" return Integer");
1606 if Exit_Status_Supported_On_Target then
1607 Set_String (" return Integer is");
1612 Write_Statement_Buffer;
1615 if Opt.Default_Exit_Status /= 0
1616 and then Bind_Main_Program
1617 and then not Configurable_Run_Time_Mode
1619 WBI (" procedure Set_Exit_Status (Status : Integer);");
1620 WBI (" pragma Import (C, Set_Exit_Status, " &
1621 """__gnat_set_exit_status"");");
1625 -- Initialize and Finalize
1627 if not CodePeer_Mode
1628 and then not Cumulative_Restrictions.Set (No_Finalization)
1630 WBI (" procedure Initialize (Addr : System.Address);");
1631 WBI (" pragma Import (C, Initialize, ""__gnat_initialize"");");
1633 WBI (" procedure Finalize;");
1634 WBI (" pragma Import (C, Finalize, ""__gnat_finalize"");");
1637 -- If we want to analyze the stack, we must import corresponding symbols
1639 if Dynamic_Stack_Measurement then
1641 WBI (" procedure Output_Results;");
1642 WBI (" pragma Import (C, Output_Results, " &
1643 """__gnat_stack_usage_output_results"");");
1647 "procedure Initialize_Stack_Analysis (Buffer_Size : Natural);");
1648 WBI (" pragma Import (C, Initialize_Stack_Analysis, " &
1649 """__gnat_stack_usage_initialize"");");
1652 -- Deal with declarations for main program case
1654 if not No_Main_Subprogram then
1655 if ALIs.Table (ALIs.First).Main_Program = Func then
1656 WBI (" Result : Integer;");
1660 if Bind_Main_Program
1661 and not Suppress_Standard_Library_On_Target
1662 and not CodePeer_Mode
1664 WBI (" SEH : aliased array (1 .. 2) of Integer;");
1669 -- Generate a reference to Ada_Main_Program_Name. This symbol is
1670 -- not referenced elsewhere in the generated program, but is needed
1671 -- by the debugger (that's why it is generated in the first place).
1672 -- The reference stops Ada_Main_Program_Name from being optimized
1673 -- away by smart linkers, such as the AiX linker.
1675 -- Because this variable is unused, we make this variable "aliased"
1676 -- with a pragma Volatile in order to tell the compiler to preserve
1677 -- this variable at any level of optimization.
1679 if Bind_Main_Program and not CodePeer_Mode then
1680 WBI (" Ensure_Reference : aliased System.Address := " &
1681 "Ada_Main_Program_Name'Address;");
1682 WBI (" pragma Volatile (Ensure_Reference);");
1688 -- Acquire command line arguments if present on target
1690 if CodePeer_Mode then
1693 elsif Command_Line_Args_On_Target then
1694 WBI (" gnat_argc := argc;");
1695 WBI (" gnat_argv := argv;");
1696 WBI (" gnat_envp := envp;");
1699 -- If configurable run time and no command line args, then nothing
1700 -- needs to be done since the gnat_argc/argv/envp variables are
1701 -- suppressed in this case.
1703 elsif Configurable_Run_Time_On_Target then
1706 -- Otherwise set dummy values (to be filled in by some other unit?)
1709 WBI (" gnat_argc := 0;");
1710 WBI (" gnat_argv := System.Null_Address;");
1711 WBI (" gnat_envp := System.Null_Address;");
1714 if Opt.Default_Exit_Status /= 0
1715 and then Bind_Main_Program
1716 and then not Configurable_Run_Time_Mode
1718 Set_String (" Set_Exit_Status (");
1719 Set_Int (Opt.Default_Exit_Status);
1721 Write_Statement_Buffer;
1724 if Dynamic_Stack_Measurement then
1725 Set_String (" Initialize_Stack_Analysis (");
1726 Set_Int (Dynamic_Stack_Measurement_Array_Size);
1728 Write_Statement_Buffer;
1731 if not Cumulative_Restrictions.Set (No_Finalization)
1732 and then not CodePeer_Mode
1734 if not No_Main_Subprogram
1735 and then Bind_Main_Program
1736 and then not Suppress_Standard_Library_On_Target
1738 WBI (" Initialize (SEH'Address);");
1740 WBI (" Initialize (System.Null_Address);");
1744 WBI (" " & Ada_Init_Name.all & ";");
1746 if not No_Main_Subprogram then
1747 if CodePeer_Mode then
1748 if ALIs.Table (ALIs.First).Main_Program = Proc then
1749 WBI (" " & CodePeer_Wrapper_Name & ";");
1751 WBI (" Result := " & CodePeer_Wrapper_Name & ";");
1754 elsif ALIs.Table (ALIs.First).Main_Program = Proc then
1755 WBI (" Ada_Main_Program;");
1758 WBI (" Result := Ada_Main_Program;");
1762 -- Adafinal call is skipped if no finalization
1764 if not Cumulative_Restrictions.Set (No_Finalization) then
1768 -- Prints the result of static stack analysis
1770 if Dynamic_Stack_Measurement then
1771 WBI (" Output_Results;");
1774 -- Finalize is only called if we have a run time
1776 if not Cumulative_Restrictions.Set (No_Finalization)
1777 and then not CodePeer_Mode
1784 if Exit_Status_Supported_On_Target then
1785 if No_Main_Subprogram
1786 or else ALIs.Table (ALIs.First).Main_Program = Proc
1788 WBI (" return (gnat_exit_status);");
1790 WBI (" return (Result);");
1798 ------------------------------
1799 -- Gen_Object_Files_Options --
1800 ------------------------------
1802 procedure Gen_Object_Files_Options is
1804 -- This keeps track of the position in the sorted set of entries
1805 -- in the Linker_Options table of where the first entry from an
1806 -- internal file appears.
1808 Linker_Option_List_Started : Boolean := False;
1809 -- Set to True when "LINKER OPTION LIST" is displayed
1811 procedure Write_Linker_Option;
1812 -- Write binder info linker option
1814 -------------------------
1815 -- Write_Linker_Option --
1816 -------------------------
1818 procedure Write_Linker_Option is
1823 -- Loop through string, breaking at null's
1826 while Start < Name_Len loop
1828 -- Find null ending this section
1831 while Name_Buffer (Stop) /= ASCII.NUL
1832 and then Stop <= Name_Len loop
1836 -- Process section if non-null
1838 if Stop > Start then
1839 if Output_Linker_Option_List then
1840 if not Zero_Formatting then
1841 if not Linker_Option_List_Started then
1842 Linker_Option_List_Started := True;
1844 Write_Str (" LINKER OPTION LIST");
1852 Write_Str (Name_Buffer (Start .. Stop - 1));
1855 WBI (" -- " & Name_Buffer (Start .. Stop - 1));
1860 end Write_Linker_Option;
1862 -- Start of processing for Gen_Object_Files_Options
1865 WBI ("-- BEGIN Object file/option list");
1867 if Object_List_Filename /= null then
1868 Set_List_File (Object_List_Filename.all);
1871 for E in Elab_Order.First .. Elab_Order.Last loop
1873 -- If not spec that has an associated body, then generate a comment
1874 -- giving the name of the corresponding object file.
1876 if not Units.Table (Elab_Order.Table (E)).SAL_Interface
1877 and then Units.Table (Elab_Order.Table (E)).Utype /= Is_Spec
1881 (Units.Table (Elab_Order.Table (E)).My_ALI).Ofile_Full_Name);
1883 -- If the presence of an object file is necessary or if it exists,
1886 if not Hostparm.Exclude_Missing_Objects
1888 System.OS_Lib.Is_Regular_File (Name_Buffer (1 .. Name_Len))
1890 WBI (" -- " & Name_Buffer (1 .. Name_Len));
1892 if Output_Object_List then
1893 Write_Str (Name_Buffer (1 .. Name_Len));
1897 -- Don't link with the shared library on VMS if an internal
1898 -- filename object is seen. Multiply defined symbols will
1901 if OpenVMS_On_Target
1902 and then Is_Internal_File_Name
1904 (Units.Table (Elab_Order.Table (E)).My_ALI).Sfile)
1906 -- Special case for g-trasym.obj (not included in libgnat)
1908 Get_Name_String (ALIs.Table
1909 (Units.Table (Elab_Order.Table (E)).My_ALI).Sfile);
1911 if Name_Buffer (1 .. 8) /= "g-trasym" then
1912 Opt.Shared_Libgnat := False;
1919 if Object_List_Filename /= null then
1923 -- Add a "-Ldir" for each directory in the object path
1924 if VM_Target /= CLI_Target then
1925 for J in 1 .. Nb_Dir_In_Obj_Search_Path loop
1927 Dir : constant String_Ptr := Dir_In_Obj_Search_Path (J);
1930 Add_Str_To_Name_Buffer ("-L");
1931 Add_Str_To_Name_Buffer (Dir.all);
1932 Write_Linker_Option;
1937 -- Sort linker options
1939 -- This sort accomplishes two important purposes:
1941 -- a) All application files are sorted to the front, and all GNAT
1942 -- internal files are sorted to the end. This results in a well
1943 -- defined dividing line between the two sets of files, for the
1944 -- purpose of inserting certain standard library references into
1945 -- the linker arguments list.
1947 -- b) Given two different units, we sort the linker options so that
1948 -- those from a unit earlier in the elaboration order comes later
1949 -- in the list. This is a heuristic designed to create a more
1950 -- friendly order of linker options when the operations appear in
1951 -- separate units. The idea is that if unit A must be elaborated
1952 -- before unit B, then it is more likely that B references
1953 -- libraries included by A, than vice versa, so we want libraries
1954 -- included by A to come after libraries included by B.
1956 -- These two criteria are implemented by function Lt_Linker_Option. Note
1957 -- that a special case of b) is that specs are elaborated before bodies,
1958 -- so linker options from specs come after linker options for bodies,
1959 -- and again, the assumption is that libraries used by the body are more
1960 -- likely to reference libraries used by the spec, than vice versa.
1963 (Linker_Options.Last,
1964 Move_Linker_Option'Access,
1965 Lt_Linker_Option'Access);
1967 -- Write user linker options, i.e. the set of linker options that come
1968 -- from all files other than GNAT internal files, Lgnat is left set to
1969 -- point to the first entry from a GNAT internal file, or past the end
1970 -- of the entries if there are no internal files.
1972 Lgnat := Linker_Options.Last + 1;
1974 for J in 1 .. Linker_Options.Last loop
1975 if not Linker_Options.Table (J).Internal_File then
1976 Get_Name_String (Linker_Options.Table (J).Name);
1977 Write_Linker_Option;
1984 -- Now we insert standard linker options that must appear after the
1985 -- entries from user files, and before the entries from GNAT run-time
1986 -- files. The reason for this decision is that libraries referenced
1987 -- by internal routines may reference these standard library entries.
1989 -- Note that we do not insert anything when pragma No_Run_Time has been
1990 -- specified or when the standard libraries are not to be used,
1991 -- otherwise on some platforms, such as VMS, we may get duplicate
1992 -- symbols when linking.
1994 if not (Opt.No_Run_Time_Mode or else Opt.No_Stdlib) then
1997 if Opt.Shared_Libgnat then
1998 Add_Str_To_Name_Buffer ("-shared");
2000 Add_Str_To_Name_Buffer ("-static");
2003 -- Write directly to avoid -K output (why???)
2005 WBI (" -- " & Name_Buffer (1 .. Name_Len));
2007 if With_DECGNAT then
2010 if Opt.Shared_Libgnat then
2011 Add_Str_To_Name_Buffer (Shared_Lib ("decgnat"));
2013 Add_Str_To_Name_Buffer ("-ldecgnat");
2016 Write_Linker_Option;
2022 if Opt.Shared_Libgnat then
2023 Add_Str_To_Name_Buffer (Shared_Lib ("gnarl"));
2025 Add_Str_To_Name_Buffer ("-lgnarl");
2028 Write_Linker_Option;
2033 if Opt.Shared_Libgnat then
2034 Add_Str_To_Name_Buffer (Shared_Lib ("gnat"));
2036 Add_Str_To_Name_Buffer ("-lgnat");
2039 Write_Linker_Option;
2042 -- Write linker options from all internal files
2044 for J in Lgnat .. Linker_Options.Last loop
2045 Get_Name_String (Linker_Options.Table (J).Name);
2046 Write_Linker_Option;
2049 if Output_Linker_Option_List and then not Zero_Formatting then
2053 WBI ("-- END Object file/option list ");
2054 end Gen_Object_Files_Options;
2056 ---------------------
2057 -- Gen_Output_File --
2058 ---------------------
2060 procedure Gen_Output_File (Filename : String) is
2062 -- Acquire settings for Interrupt_State pragmas
2064 Set_IS_Pragma_Table;
2066 -- Acquire settings for Priority_Specific_Dispatching pragma
2068 Set_PSD_Pragma_Table;
2070 -- For JGNAT the main program is already generated by the compiler
2072 if VM_Target = JVM_Target then
2073 Bind_Main_Program := False;
2076 -- Override time slice value if -T switch is set
2078 if Time_Slice_Set then
2079 ALIs.Table (ALIs.First).Time_Slice_Value := Opt.Time_Slice_Value;
2082 -- Count number of elaboration calls
2084 for E in Elab_Order.First .. Elab_Order.Last loop
2085 if Units.Table (Elab_Order.Table (E)).No_Elab then
2088 Num_Elab_Calls := Num_Elab_Calls + 1;
2092 -- Generate output file in appropriate language
2094 Check_System_Restrictions_Used;
2095 Check_Dispatching_Domains_Used;
2097 Gen_Output_File_Ada (Filename);
2098 end Gen_Output_File;
2100 -------------------------
2101 -- Gen_Output_File_Ada --
2102 -------------------------
2104 procedure Gen_Output_File_Ada (Filename : String) is
2106 Ada_Main : constant String := Get_Ada_Main_Name;
2107 -- Name to be used for generated Ada main program. See the body of
2108 -- function Get_Ada_Main_Name for details on the form of the name.
2110 Needs_Library_Finalization : constant Boolean :=
2111 not Configurable_Run_Time_On_Target
2112 and then Has_Finalizer;
2113 -- For restricted run-time libraries (ZFP and Ravenscar) tasks are
2114 -- non-terminating, so we do not want finalization.
2117 -- Name of generated bind file (spec)
2120 -- Name of generated bind file (body)
2123 -- Create spec first
2125 Create_Binder_Output (Filename, 's', Bfiles);
2127 -- We always compile the binder file in Ada 95 mode so that we properly
2128 -- handle use of Ada 2005 keywords as identifiers in Ada 95 mode. None
2129 -- of the Ada 2005 or Ada 2012 constructs are needed by the binder file.
2131 WBI ("pragma Ada_95;");
2133 -- If we are operating in Restrictions (No_Exception_Handlers) mode,
2134 -- then we need to make sure that the binder program is compiled with
2135 -- the same restriction, so that no exception tables are generated.
2137 if Cumulative_Restrictions.Set (No_Exception_Handlers) then
2138 WBI ("pragma Restrictions (No_Exception_Handlers);");
2141 -- Same processing for Restrictions (No_Exception_Propagation)
2143 if Cumulative_Restrictions.Set (No_Exception_Propagation) then
2144 WBI ("pragma Restrictions (No_Exception_Propagation);");
2147 -- Same processing for pragma No_Run_Time
2149 if No_Run_Time_Mode then
2150 WBI ("pragma No_Run_Time;");
2153 -- Generate with of System so we can reference System.Address
2155 WBI ("with System;");
2157 -- Generate with of System.Initialize_Scalars if active
2159 if Initialize_Scalars_Used then
2160 WBI ("with System.Scalar_Values;");
2163 -- Generate with of System.Secondary_Stack if active
2165 if Sec_Stack_Used and then Default_Sec_Stack_Size /= -1 then
2166 WBI ("with System.Secondary_Stack;");
2169 Resolve_Binder_Options;
2171 -- Usually, adafinal is called using a pragma Import C. Since Import C
2172 -- doesn't have the same semantics for VMs or CodePeer use standard Ada.
2174 if not Suppress_Standard_Library_On_Target then
2175 if CodePeer_Mode then
2176 WBI ("with System.Standard_Library;");
2177 elsif VM_Target /= No_VM then
2178 WBI ("with System.Soft_Links;");
2179 WBI ("with System.Standard_Library;");
2183 WBI ("package " & Ada_Main & " is");
2184 WBI (" pragma Warnings (Off);");
2186 -- Main program case
2188 if Bind_Main_Program then
2189 if VM_Target = No_VM then
2191 -- Generate argc/argv stuff unless suppressed
2193 if Command_Line_Args_On_Target
2194 or not Configurable_Run_Time_On_Target
2197 WBI (" gnat_argc : Integer;");
2198 WBI (" gnat_argv : System.Address;");
2199 WBI (" gnat_envp : System.Address;");
2201 -- If the standard library is not suppressed, these variables
2202 -- are in the run-time data area for easy run time access.
2204 if not Suppress_Standard_Library_On_Target then
2206 WBI (" pragma Import (C, gnat_argc);");
2207 WBI (" pragma Import (C, gnat_argv);");
2208 WBI (" pragma Import (C, gnat_envp);");
2212 -- Define exit status. Again in normal mode, this is in the
2213 -- run-time library, and is initialized there, but in the
2214 -- configurable runtime case, the variable is declared and
2215 -- initialized in this file.
2219 if Configurable_Run_Time_Mode then
2220 if Exit_Status_Supported_On_Target then
2221 WBI (" gnat_exit_status : Integer := 0;");
2225 WBI (" gnat_exit_status : Integer;");
2226 WBI (" pragma Import (C, gnat_exit_status);");
2230 -- Generate the GNAT_Version and Ada_Main_Program_Name info only for
2231 -- the main program. Otherwise, it can lead under some circumstances
2232 -- to a symbol duplication during the link (for instance when a C
2233 -- program uses two Ada libraries). Also zero terminate the string
2234 -- so that its end can be found reliably at run time.
2237 WBI (" GNAT_Version : constant String :=");
2238 WBI (" """ & Ver_Prefix &
2239 Gnat_Version_String &
2241 WBI (" pragma Export (C, GNAT_Version, ""__gnat_version"");");
2244 Set_String (" Ada_Main_Program_Name : constant String := """);
2245 Get_Name_String (Units.Table (First_Unit_Entry).Uname);
2247 if VM_Target = No_VM then
2248 Set_Main_Program_Name;
2249 Set_String (""" & ASCII.NUL;");
2251 Set_String (Name_Buffer (1 .. Name_Len - 2) & """;");
2254 Write_Statement_Buffer;
2257 (" pragma Export (C, Ada_Main_Program_Name, " &
2258 """__gnat_ada_main_program_name"");");
2262 WBI (" procedure " & Ada_Init_Name.all & ";");
2263 WBI (" pragma Export (C, " & Ada_Init_Name.all & ", """ &
2264 Ada_Init_Name.all & """);");
2266 -- If -a has been specified use pragma Linker_Constructor for the init
2267 -- procedure and pragma Linker_Destructor for the final procedure.
2269 if Use_Pragma_Linker_Constructor then
2270 WBI (" pragma Linker_Constructor (" & Ada_Init_Name.all & ");");
2273 if not Cumulative_Restrictions.Set (No_Finalization) then
2275 WBI (" procedure " & Ada_Final_Name.all & ";");
2276 WBI (" pragma Export (C, " & Ada_Final_Name.all & ", """ &
2277 Ada_Final_Name.all & """);");
2279 if Use_Pragma_Linker_Constructor then
2280 WBI (" pragma Linker_Destructor (" & Ada_Final_Name.all & ");");
2284 if Bind_Main_Program and then VM_Target = No_VM then
2288 if Exit_Status_Supported_On_Target then
2289 Set_String (" function ");
2291 Set_String (" procedure ");
2294 Set_String (Get_Main_Name);
2296 -- Generate argument list if present
2298 if Command_Line_Args_On_Target then
2299 Write_Statement_Buffer;
2300 WBI (" (argc : Integer;");
2301 WBI (" argv : System.Address;");
2303 (" envp : System.Address)");
2305 if Exit_Status_Supported_On_Target then
2306 Write_Statement_Buffer;
2307 WBI (" return Integer;");
2309 Write_Statement_Buffer (";");
2313 if Exit_Status_Supported_On_Target then
2314 Write_Statement_Buffer (" return Integer;");
2316 Write_Statement_Buffer (";");
2320 WBI (" pragma Export (C, " & Get_Main_Name & ", """ &
2321 Get_Main_Name & """);");
2330 WBI ("end " & Ada_Main & ";");
2331 Close_Binder_Output;
2333 -- Prepare to write body
2335 Create_Binder_Output (Filename, 'b', Bfileb);
2337 -- We always compile the binder file in Ada 95 mode so that we properly
2338 -- handle use of Ada 2005 keywords as identifiers in Ada 95 mode. None
2339 -- of the Ada 2005/2012 constructs are needed by the binder file.
2341 WBI ("pragma Ada_95;");
2343 -- Output Source_File_Name pragmas which look like
2345 -- pragma Source_File_Name (Ada_Main, Spec_File_Name => "sss");
2346 -- pragma Source_File_Name (Ada_Main, Body_File_Name => "bbb");
2348 -- where sss/bbb are the spec/body file names respectively
2350 Get_Name_String (Bfiles);
2351 Name_Buffer (Name_Len + 1 .. Name_Len + 3) := """);";
2353 WBI ("pragma Source_File_Name (" &
2355 ", Spec_File_Name => """ &
2356 Name_Buffer (1 .. Name_Len + 3));
2358 Get_Name_String (Bfileb);
2359 Name_Buffer (Name_Len + 1 .. Name_Len + 3) := """);";
2361 WBI ("pragma Source_File_Name (" &
2363 ", Body_File_Name => """ &
2364 Name_Buffer (1 .. Name_Len + 3));
2366 -- Generate with of System.Restrictions to initialize
2367 -- Run_Time_Restrictions.
2369 if System_Restrictions_Used
2370 and not Suppress_Standard_Library_On_Target
2373 WBI ("with System.Restrictions;");
2376 if Needs_Library_Finalization then
2377 WBI ("with Ada.Exceptions;");
2381 WBI ("package body " & Ada_Main & " is");
2382 WBI (" pragma Warnings (Off);");
2385 -- Generate externals for elaboration entities
2389 if not CodePeer_Mode then
2390 if not Suppress_Standard_Library_On_Target then
2392 -- Generate Priority_Specific_Dispatching pragma string
2395 (" Local_Priority_Specific_Dispatching : " &
2396 "constant String := """);
2398 for J in 0 .. PSD_Pragma_Settings.Last loop
2399 Set_Char (PSD_Pragma_Settings.Table (J));
2403 Write_Statement_Buffer;
2405 -- Generate Interrupt_State pragma string
2407 Set_String (" Local_Interrupt_States : constant String := """);
2409 for J in 0 .. IS_Pragma_Settings.Last loop
2410 Set_Char (IS_Pragma_Settings.Table (J));
2414 Write_Statement_Buffer;
2418 -- The B.1 (39) implementation advice says that the adainit/adafinal
2419 -- routines should be idempotent. Generate a flag to ensure that.
2421 WBI (" Is_Elaborated : Boolean := False;");
2425 -- Generate the adafinal routine unless there is no finalization to do
2427 if not Cumulative_Restrictions.Set (No_Finalization) then
2428 if Needs_Library_Finalization then
2429 Gen_Finalize_Library;
2437 if Bind_Main_Program and then VM_Target = No_VM then
2441 -- Output object file list and the Ada body is complete
2443 Gen_Object_Files_Options;
2446 WBI ("end " & Ada_Main & ";");
2448 Close_Binder_Output;
2449 end Gen_Output_File_Ada;
2451 ----------------------
2452 -- Gen_Restrictions --
2453 ----------------------
2455 procedure Gen_Restrictions is
2459 if Suppress_Standard_Library_On_Target
2460 or not System_Restrictions_Used
2465 WBI (" System.Restrictions.Run_Time_Restrictions :=");
2471 for J in Cumulative_Restrictions.Set'Range loop
2472 Set_Boolean (Cumulative_Restrictions.Set (J));
2476 if J /= Cumulative_Restrictions.Set'Last and then Count = 8 then
2477 Write_Statement_Buffer;
2483 Set_String_Replace ("),");
2484 Write_Statement_Buffer;
2485 Set_String (" Value => (");
2487 for J in Cumulative_Restrictions.Value'Range loop
2488 Set_Int (Int (Cumulative_Restrictions.Value (J)));
2492 Set_String_Replace ("),");
2493 Write_Statement_Buffer;
2494 WBI (" Violated =>");
2498 for J in Cumulative_Restrictions.Violated'Range loop
2499 Set_Boolean (Cumulative_Restrictions.Violated (J));
2503 if J /= Cumulative_Restrictions.Set'Last and then Count = 8 then
2504 Write_Statement_Buffer;
2510 Set_String_Replace ("),");
2511 Write_Statement_Buffer;
2512 Set_String (" Count => (");
2514 for J in Cumulative_Restrictions.Count'Range loop
2515 Set_Int (Int (Cumulative_Restrictions.Count (J)));
2519 Set_String_Replace ("),");
2520 Write_Statement_Buffer;
2521 Set_String (" Unknown => (");
2523 for J in Cumulative_Restrictions.Unknown'Range loop
2524 Set_Boolean (Cumulative_Restrictions.Unknown (J));
2528 Set_String_Replace ("))");
2530 Write_Statement_Buffer;
2531 end Gen_Restrictions;
2537 -- This routine generates lines such as:
2539 -- unnnnn : constant Integer := 16#hhhhhhhh#;
2540 -- pragma Export (C, unnnnn, unam);
2542 -- for each unit, where unam is the unit name suffixed by either B or S for
2543 -- body or spec, with dots replaced by double underscores, and hhhhhhhh is
2544 -- the version number, and nnnnn is a 5-digits serial number.
2546 procedure Gen_Versions is
2547 Ubuf : String (1 .. 6) := "u00000";
2549 procedure Increment_Ubuf;
2550 -- Little procedure to increment the serial number
2552 --------------------
2553 -- Increment_Ubuf --
2554 --------------------
2556 procedure Increment_Ubuf is
2558 for J in reverse Ubuf'Range loop
2559 Ubuf (J) := Character'Succ (Ubuf (J));
2560 exit when Ubuf (J) <= '9';
2565 -- Start of processing for Gen_Versions
2570 WBI (" type Version_32 is mod 2 ** 32;");
2571 for U in Units.First .. Units.Last loop
2572 if not Units.Table (U).SAL_Interface
2574 (not Bind_For_Library or else Units.Table (U).Directly_Scanned)
2577 WBI (" " & Ubuf & " : constant Version_32 := 16#" &
2578 Units.Table (U).Version & "#;");
2579 Set_String (" pragma Export (C, ");
2581 Set_String (", """);
2583 Get_Name_String (Units.Table (U).Uname);
2585 for K in 1 .. Name_Len loop
2586 if Name_Buffer (K) = '.' then
2590 elsif Name_Buffer (K) = '%' then
2594 Set_Char (Name_Buffer (K));
2598 if Name_Buffer (Name_Len) = 's' then
2604 Set_String (""");");
2605 Write_Statement_Buffer;
2610 ------------------------
2611 -- Get_Main_Unit_Name --
2612 ------------------------
2614 function Get_Main_Unit_Name (S : String) return String is
2615 Result : String := S;
2618 for J in S'Range loop
2619 if Result (J) = '.' then
2625 end Get_Main_Unit_Name;
2627 -----------------------
2628 -- Get_Ada_Main_Name --
2629 -----------------------
2631 function Get_Ada_Main_Name return String is
2632 Suffix : constant String := "_00";
2633 Name : String (1 .. Opt.Ada_Main_Name.all'Length + Suffix'Length) :=
2634 Opt.Ada_Main_Name.all & Suffix;
2638 -- The main program generated by JGNAT expects a package called
2639 -- ada_<main procedure>.
2640 if VM_Target /= No_VM then
2641 Get_Name_String (Units.Table (First_Unit_Entry).Uname);
2642 return "ada_" & Get_Main_Unit_Name (Name_Buffer (1 .. Name_Len - 2));
2645 -- For CodePeer, we want reproducible names (independent of other
2646 -- mains that may or may not be present) that don't collide
2647 -- when analyzing multiple mains and which are easily recognizable
2648 -- as "ada_main" names.
2649 if CodePeer_Mode then
2650 Get_Name_String (Units.Table (First_Unit_Entry).Uname);
2651 return "ada_main_for_" &
2652 Get_Main_Unit_Name (Name_Buffer (1 .. Name_Len - 2));
2655 -- This loop tries the following possibilities in order
2661 -- where <Ada_Main> is equal to Opt.Ada_Main_Name. By default,
2662 -- it is set to 'ada_main'.
2664 for J in 0 .. 99 loop
2666 Nlen := Name'Length - Suffix'Length;
2668 Nlen := Name'Length;
2669 Name (Name'Last) := Character'Val (J mod 10 + Character'Pos ('0'));
2670 Name (Name'Last - 1) :=
2671 Character'Val (J / 10 + Character'Pos ('0'));
2674 for K in ALIs.First .. ALIs.Last loop
2675 for L in ALIs.Table (K).First_Unit .. ALIs.Table (K).Last_Unit loop
2677 -- Get unit name, removing %b or %e at end
2679 Get_Name_String (Units.Table (L).Uname);
2680 Name_Len := Name_Len - 2;
2682 if Name_Buffer (1 .. Name_Len) = Name (1 .. Nlen) then
2688 return Name (1 .. Nlen);
2694 -- If we fall through, just use a peculiar unlikely name
2696 return ("Qwertyuiop");
2697 end Get_Ada_Main_Name;
2703 function Get_Main_Name return String is
2705 -- Explicit name given with -M switch
2707 if Bind_Alternate_Main_Name then
2708 return Alternate_Main_Name.all;
2710 -- Case of main program name to be used directly
2712 elsif Use_Ada_Main_Program_Name_On_Target then
2714 -- Get main program name
2716 Get_Name_String (Units.Table (First_Unit_Entry).Uname);
2718 -- If this is a child name, return only the name of the child, since
2719 -- we can't have dots in a nested program name. Note that we do not
2720 -- include the %b at the end of the unit name.
2722 for J in reverse 1 .. Name_Len - 2 loop
2723 if J = 1 or else Name_Buffer (J - 1) = '.' then
2724 return Name_Buffer (J .. Name_Len - 2);
2728 raise Program_Error; -- impossible exit
2730 -- Case where "main" is to be used as default
2737 ---------------------
2738 -- Get_WC_Encoding --
2739 ---------------------
2741 function Get_WC_Encoding return Character is
2743 -- If encoding method specified by -W switch, then return it
2745 if Wide_Character_Encoding_Method_Specified then
2746 return WC_Encoding_Letters (Wide_Character_Encoding_Method);
2748 -- If no main program, and not specified, set brackets, we really have
2749 -- no better choice. If some other encoding is required when there is
2750 -- no main, it must be set explicitly using -Wx.
2752 -- Note: if the ALI file always passed the wide character encoding of
2753 -- every file, then we could use the encoding of the initial specified
2754 -- file, but this information is passed only for potential main
2755 -- programs. We could fix this sometime, but it is a very minor point
2756 -- (wide character default encoding for [Wide_[Wide_]Text_IO when there
2757 -- is no main program).
2759 elsif No_Main_Subprogram then
2762 -- Otherwise if there is a main program, take encoding from it
2765 return ALIs.Table (ALIs.First).WC_Encoding;
2767 end Get_WC_Encoding;
2773 function Has_Finalizer return Boolean is
2778 for E in reverse Elab_Order.First .. Elab_Order.Last loop
2779 Unum := Elab_Order.Table (E);
2780 U := Units.Table (Unum);
2782 -- We are only interested in non-generic packages
2784 if U.Unit_Kind = 'p'
2785 and then U.Has_Finalizer
2786 and then not U.Is_Generic
2787 and then not U.No_Elab
2796 ----------------------
2797 -- Lt_Linker_Option --
2798 ----------------------
2800 function Lt_Linker_Option (Op1, Op2 : Natural) return Boolean is
2802 -- Sort internal files last
2804 if Linker_Options.Table (Op1).Internal_File
2806 Linker_Options.Table (Op2).Internal_File
2808 -- Note: following test uses False < True
2810 return Linker_Options.Table (Op1).Internal_File
2812 Linker_Options.Table (Op2).Internal_File;
2814 -- If both internal or both non-internal, sort according to the
2815 -- elaboration position. A unit that is elaborated later should come
2816 -- earlier in the linker options list.
2819 return Units.Table (Linker_Options.Table (Op1).Unit).Elab_Position
2821 Units.Table (Linker_Options.Table (Op2).Unit).Elab_Position;
2824 end Lt_Linker_Option;
2826 ------------------------
2827 -- Move_Linker_Option --
2828 ------------------------
2830 procedure Move_Linker_Option (From : Natural; To : Natural) is
2832 Linker_Options.Table (To) := Linker_Options.Table (From);
2833 end Move_Linker_Option;
2835 ----------------------------
2836 -- Resolve_Binder_Options --
2837 ----------------------------
2839 procedure Resolve_Binder_Options is
2841 for E in Elab_Order.First .. Elab_Order.Last loop
2842 Get_Name_String (Units.Table (Elab_Order.Table (E)).Uname);
2844 -- This is not a perfect approach, but is the current protocol
2845 -- between the run-time and the binder to indicate that tasking is
2846 -- used: system.os_interface should always be used by any tasking
2849 if Name_Buffer (1 .. 19) = "system.os_interface" then
2853 -- Ditto for declib and the "dec" package
2855 if OpenVMS_On_Target and then Name_Buffer (1 .. 5) = "dec%s" then
2856 With_DECGNAT := True;
2859 end Resolve_Binder_Options;
2865 procedure Set_Boolean (B : Boolean) is
2866 True_Str : constant String := "True";
2867 False_Str : constant String := "False";
2870 Statement_Buffer (Last + 1 .. Last + True_Str'Length) := True_Str;
2871 Last := Last + True_Str'Length;
2873 Statement_Buffer (Last + 1 .. Last + False_Str'Length) := False_Str;
2874 Last := Last + False_Str'Length;
2882 procedure Set_Char (C : Character) is
2885 Statement_Buffer (Last) := C;
2892 procedure Set_Int (N : Int) is
2904 Statement_Buffer (Last) :=
2905 Character'Val (N mod 10 + Character'Pos ('0'));
2909 -------------------------
2910 -- Set_IS_Pragma_Table --
2911 -------------------------
2913 procedure Set_IS_Pragma_Table is
2915 for F in ALIs.First .. ALIs.Last loop
2916 for K in ALIs.Table (F).First_Interrupt_State ..
2917 ALIs.Table (F).Last_Interrupt_State
2920 Inum : constant Int :=
2921 Interrupt_States.Table (K).Interrupt_Id;
2922 Stat : constant Character :=
2923 Interrupt_States.Table (K).Interrupt_State;
2926 while IS_Pragma_Settings.Last < Inum loop
2927 IS_Pragma_Settings.Append ('n');
2930 IS_Pragma_Settings.Table (Inum) := Stat;
2934 end Set_IS_Pragma_Table;
2936 ---------------------------
2937 -- Set_Main_Program_Name --
2938 ---------------------------
2940 procedure Set_Main_Program_Name is
2942 -- Note that name has %b on the end which we ignore
2944 -- First we output the initial _ada_ since we know that the main
2945 -- program is a library level subprogram.
2947 Set_String ("_ada_");
2949 -- Copy name, changing dots to double underscores
2951 for J in 1 .. Name_Len - 2 loop
2952 if Name_Buffer (J) = '.' then
2955 Set_Char (Name_Buffer (J));
2958 end Set_Main_Program_Name;
2960 ---------------------
2961 -- Set_Name_Buffer --
2962 ---------------------
2964 procedure Set_Name_Buffer is
2966 for J in 1 .. Name_Len loop
2967 Set_Char (Name_Buffer (J));
2969 end Set_Name_Buffer;
2971 -------------------------
2972 -- Set_PSD_Pragma_Table --
2973 -------------------------
2975 procedure Set_PSD_Pragma_Table is
2977 for F in ALIs.First .. ALIs.Last loop
2978 for K in ALIs.Table (F).First_Specific_Dispatching ..
2979 ALIs.Table (F).Last_Specific_Dispatching
2982 DTK : Specific_Dispatching_Record
2983 renames Specific_Dispatching.Table (K);
2986 while PSD_Pragma_Settings.Last < DTK.Last_Priority loop
2987 PSD_Pragma_Settings.Append ('F');
2990 for Prio in DTK.First_Priority .. DTK.Last_Priority loop
2991 PSD_Pragma_Settings.Table (Prio) := DTK.Dispatching_Policy;
2996 end Set_PSD_Pragma_Table;
3002 procedure Set_String (S : String) is
3004 Statement_Buffer (Last + 1 .. Last + S'Length) := S;
3005 Last := Last + S'Length;
3008 ------------------------
3009 -- Set_String_Replace --
3010 ------------------------
3012 procedure Set_String_Replace (S : String) is
3014 Statement_Buffer (Last - S'Length + 1 .. Last) := S;
3015 end Set_String_Replace;
3021 procedure Set_Unit_Name (Mode : Qualification_Mode := Double_Underscores) is
3023 for J in 1 .. Name_Len - 2 loop
3024 if Name_Buffer (J) = '.' then
3025 if Mode = Double_Underscores then
3027 elsif Mode = Dot then
3033 Set_Char (Name_Buffer (J));
3038 ---------------------
3039 -- Set_Unit_Number --
3040 ---------------------
3042 procedure Set_Unit_Number (U : Unit_Id) is
3043 Num_Units : constant Nat := Nat (Units.Last) - Nat (Unit_Id'First);
3044 Unum : constant Nat := Nat (U) - Nat (Unit_Id'First);
3047 if Num_Units >= 10 and then Unum < 10 then
3051 if Num_Units >= 100 and then Unum < 100 then
3056 end Set_Unit_Number;
3058 ----------------------------
3059 -- Write_Statement_Buffer --
3060 ----------------------------
3062 procedure Write_Statement_Buffer is
3064 WBI (Statement_Buffer (1 .. Last));
3066 end Write_Statement_Buffer;
3068 procedure Write_Statement_Buffer (S : String) is
3071 Write_Statement_Buffer;
3072 end Write_Statement_Buffer;