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------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- B I N D G E N -- -- -- -- B o d y -- -- -- -- Copyright (C) 1992-2009, Free Software Foundation, Inc. -- -- -- -- GNAT is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 3, or (at your option) any later ver- -- -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNAT; see file COPYING3. If not, go to -- -- http://www.gnu.org/licenses for a complete copy of the license. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ with ALI; use ALI; with Binde; use Binde; with Casing; use Casing; with Fname; use Fname; with Gnatvsn; use Gnatvsn; with Hostparm; with Namet; use Namet; with Opt; use Opt; with Osint; use Osint; with Osint.B; use Osint.B; with Output; use Output; with Rident; use Rident; with Table; use Table; with Targparm; use Targparm; with Types; use Types; with System.OS_Lib; use System.OS_Lib; with System.WCh_Con; use System.WCh_Con; with GNAT.Heap_Sort_A; use GNAT.Heap_Sort_A; package body Bindgen is Statement_Buffer : String (1 .. 1000); -- Buffer used for constructing output statements Last : Natural := 0; -- Last location in Statement_Buffer currently set With_DECGNAT : Boolean := False; -- Flag which indicates whether the program uses the DECGNAT library -- (presence of the unit DEC). With_GNARL : Boolean := False; -- Flag which indicates whether the program uses the GNARL library -- (presence of the unit System.OS_Interface) Num_Elab_Calls : Nat := 0; -- Number of generated calls to elaboration routines System_Restrictions_Used : Boolean; -- Flag indicating whether the unit System.Restrictions is in the closure -- of the partition. This is set by Check_System_Restrictions_Used, and -- is used to determine whether or not to initialize the restrictions -- information in the body of the binder generated file (we do not want -- to do this unconditionally, since it drags in the System.Restrictions -- unit unconditionally, which is unpleasand, especially for ZFP etc.) ---------------------------------- -- Interface_State Pragma Table -- ---------------------------------- -- This table assembles the interface state pragma information from -- all the units in the partition. Note that Bcheck has already checked -- that the information is consistent across units. The entries -- in this table are n/u/r/s for not set/user/runtime/system. package IS_Pragma_Settings is new Table.Table ( Table_Component_Type => Character, Table_Index_Type => Int, Table_Low_Bound => 0, Table_Initial => 100, Table_Increment => 200, Table_Name => "IS_Pragma_Settings"); -- This table assembles the Priority_Specific_Dispatching pragma -- information from all the units in the partition. Note that Bcheck has -- already checked that the information is consistent across units. -- The entries in this table are the upper case first character of the -- policy name, e.g. 'F' for FIFO_Within_Priorities. package PSD_Pragma_Settings is new Table.Table ( Table_Component_Type => Character, Table_Index_Type => Int, Table_Low_Bound => 0, Table_Initial => 100, Table_Increment => 200, Table_Name => "PSD_Pragma_Settings"); ---------------------- -- Run-Time Globals -- ---------------------- -- This section documents the global variables that set from the -- generated binder file. -- Main_Priority : Integer; -- Time_Slice_Value : Integer; -- WC_Encoding : Character; -- Locking_Policy : Character; -- Queuing_Policy : Character; -- Task_Dispatching_Policy : Character; -- Priority_Specific_Dispatching : System.Address; -- Num_Specific_Dispatching : Integer; -- Restrictions : System.Address; -- Interrupt_States : System.Address; -- Num_Interrupt_States : Integer; -- Unreserve_All_Interrupts : Integer; -- Exception_Tracebacks : Integer; -- Zero_Cost_Exceptions : Integer; -- Detect_Blocking : Integer; -- Default_Stack_Size : Integer; -- Leap_Seconds_Support : Integer; -- Main_Priority is the priority value set by pragma Priority in the main -- program. If no such pragma is present, the value is -1. -- Time_Slice_Value is the time slice value set by pragma Time_Slice in the -- main program, or by the use of a -Tnnn parameter for the binder (if both -- are present, the binder value overrides). The value is in milliseconds. -- A value of zero indicates that time slicing should be suppressed. If no -- pragma is present, and no -T switch was used, the value is -1. -- WC_Encoding shows the wide character encoding method used for the main -- program. This is one of the encoding letters defined in -- System.WCh_Con.WC_Encoding_Letters. -- Locking_Policy is a space if no locking policy was specified for the -- partition. If a locking policy was specified, the value is the upper -- case first character of the locking policy name, for example, 'C' for -- Ceiling_Locking. -- Queuing_Policy is a space if no queuing policy was specified for the -- partition. If a queuing policy was specified, the value is the upper -- case first character of the queuing policy name for example, 'F' for -- FIFO_Queuing. -- Task_Dispatching_Policy is a space if no task dispatching policy was -- specified for the partition. If a task dispatching policy was specified, -- the value is the upper case first character of the policy name, e.g. 'F' -- for FIFO_Within_Priorities. -- Priority_Specific_Dispatching is the address of a string used to store -- the task dispatching policy specified for the different priorities in -- the partition. The length of this string is determined by the last -- priority for which such a pragma applies (the string will be a null -- string if no specific dispatching policies were used). If pragma were -- present, the entries apply to the priorities in sequence from the first -- priority. The value stored is the upper case first character of the -- policy name, or 'F' (for FIFO_Within_Priorities) as the default value -- for those priority ranges not specified. -- Num_Specific_Dispatching is the length of the -- Priority_Specific_Dispatching string. It will be set to zero if no -- Priority_Specific_Dispatching pragmas are present. -- Restrictions is the address of a null-terminated string specifying the -- restrictions information for the partition. The format is identical to -- that of the parameter string found on R lines in ali files (see Lib.Writ -- spec in lib-writ.ads for full details). The difference is that in this -- context the values are the cumulative ones for the entire partition. -- Interrupt_States is the address of a string used to specify the -- cumulative results of Interrupt_State pragmas used in the partition. -- The length of this string is determined by the last interrupt for which -- such a pragma is given (the string will be a null string if no pragmas -- were used). If pragma were present the entries apply to the interrupts -- in sequence from the first interrupt, and are set to one of four -- possible settings: 'n' for not specified, 'u' for user, 'r' for run -- time, 's' for system, see description of Interrupt_State pragma for -- further details. -- Num_Interrupt_States is the length of the Interrupt_States string. It -- will be set to zero if no Interrupt_State pragmas are present. -- Unreserve_All_Interrupts is set to one if at least one unit in the -- partition had a pragma Unreserve_All_Interrupts, and zero otherwise. -- Exception_Tracebacks is set to one if the -E parameter was present -- in the bind and to zero otherwise. Note that on some targets exception -- tracebacks are provided by default, so a value of zero for this -- parameter does not necessarily mean no trace backs are available. -- Zero_Cost_Exceptions is set to one if zero cost exceptions are used for -- this partition, and to zero if longjmp/setjmp exceptions are used. -- Detect_Blocking indicates whether pragma Detect_Blocking is active or -- not. A value of zero indicates that the pragma is not present, while a -- value of 1 signals its presence in the partition. -- Default_Stack_Size is the default stack size used when creating an Ada -- task with no explicit Storage_Size clause. -- Leap_Seconds_Support denotes whether leap seconds have been enabled or -- disabled. A value of zero indicates that leap seconds are turned "off", -- while a value of one signifies "on" status. ----------------------- -- Local Subprograms -- ----------------------- procedure WBI (Info : String) renames Osint.B.Write_Binder_Info; -- Convenient shorthand used throughout procedure Check_System_Restrictions_Used; -- Sets flag System_Restrictions_Used (Set to True if and only if the unit -- System.Restrictions is present in the partition, otherwise False). procedure Gen_Adainit_Ada; -- Generates the Adainit procedure (Ada code case) procedure Gen_Adainit_C; -- Generates the Adainit procedure (C code case) procedure Gen_Adafinal_Ada; -- Generate the Adafinal procedure (Ada code case) procedure Gen_Adafinal_C; -- Generate the Adafinal procedure (C code case) procedure Gen_Elab_Calls_Ada; -- Generate sequence of elaboration calls (Ada code case) procedure Gen_Elab_Calls_C; -- Generate sequence of elaboration calls (C code case) procedure Gen_Elab_Order_Ada; -- Generate comments showing elaboration order chosen (Ada case) procedure Gen_Elab_Order_C; -- Generate comments showing elaboration order chosen (C case) procedure Gen_Elab_Defs_C; -- Generate sequence of definitions for elaboration routines (C code case) procedure Gen_Main_Ada; -- Generate procedure main (Ada code case) procedure Gen_Main_C; -- Generate main() procedure (C code case) procedure Gen_Object_Files_Options; -- Output comments containing a list of the full names of the object -- files to be linked and the list of linker options supplied by -- Linker_Options pragmas in the source. (C and Ada code case) procedure Gen_Output_File_Ada (Filename : String); -- Generate output file (Ada code case) procedure Gen_Output_File_C (Filename : String); -- Generate output file (C code case) procedure Gen_Restrictions_Ada; -- Generate initialization of restrictions variable (Ada code case) procedure Gen_Restrictions_C; -- Generate initialization of restrictions variable (C code case) procedure Gen_Versions_Ada; -- Output series of definitions for unit versions (Ada code case) procedure Gen_Versions_C; -- Output series of definitions for unit versions (C code case) function Get_Ada_Main_Name return String; -- This function is used in the Ada main output case to compute a usable -- name for the generated main program. The normal main program name is -- Ada_Main, but this won't work if the user has a unit with this name. -- This function tries Ada_Main first, and if there is such a clash, then -- it tries Ada_Name_01, Ada_Name_02 ... Ada_Name_99 in sequence. function Get_Main_Unit_Name (S : String) return String; -- Return the main unit name corresponding to S by replacing '.' with '_' function Get_Main_Name return String; -- This function is used in the Ada main output case to compute the -- correct external main program. It is "main" by default, unless the -- flag Use_Ada_Main_Program_Name_On_Target is set, in which case it -- is the name of the Ada main name without the "_ada". This default -- can be overridden explicitly using the -Mname binder switch. function Get_WC_Encoding return Character; -- Return wide character encoding method to set as WC_Encoding in output. -- If -W has been used, returns the specified encoding, otherwise returns -- the encoding method used for the main program source. If there is no -- main program source (-z switch used), returns brackets ('b'). function Lt_Linker_Option (Op1, Op2 : Natural) return Boolean; -- Compare linker options, when sorting, first according to -- Is_Internal_File (internal files come later) and then by -- elaboration order position (latest to earliest). procedure Move_Linker_Option (From : Natural; To : Natural); -- Move routine for sorting linker options procedure Resolve_Binder_Options; -- Set the value of With_GNARL and With_DECGNAT. The latter only on VMS -- since it tests for a package named "dec" which might cause a conflict -- on non-VMS systems. procedure Set_Char (C : Character); -- Set given character in Statement_Buffer at the Last + 1 position -- and increment Last by one to reflect the stored character. procedure Set_Int (N : Int); -- Set given value in decimal in Statement_Buffer with no spaces -- starting at the Last + 1 position, and updating Last past the value. -- A minus sign is output for a negative value. procedure Set_Boolean (B : Boolean); -- Set given boolean value in Statement_Buffer at the Last + 1 position -- and update Last past the value. procedure Set_IS_Pragma_Table; -- Initializes contents of IS_Pragma_Settings table from ALI table procedure Set_Main_Program_Name; -- Given the main program name in Name_Buffer (length in Name_Len) -- generate the name of the routine to be used in the call. The name -- is generated starting at Last + 1, and Last is updated past it. procedure Set_Name_Buffer; -- Set the value stored in positions 1 .. Name_Len of the Name_Buffer procedure Set_PSD_Pragma_Table; -- Initializes contents of PSD_Pragma_Settings table from ALI table procedure Set_String (S : String); -- Sets characters of given string in Statement_Buffer, starting at the -- Last + 1 position, and updating last past the string value. procedure Set_Unit_Name; -- Given a unit name in the Name_Buffer, copies it to Statement_Buffer, -- starting at the Last + 1 position, and updating last past the value. -- changing periods to double underscores, and updating Last appropriately. procedure Set_Unit_Number (U : Unit_Id); -- Sets unit number (first unit is 1, leading zeroes output to line -- up all output unit numbers nicely as required by the value, and -- by the total number of units. procedure Write_Info_Ada_C (Ada : String; C : String; Common : String); -- For C code case, write C & Common, for Ada case write Ada & Common -- to current binder output file using Write_Binder_Info. procedure Write_Statement_Buffer; -- Write out contents of statement buffer up to Last, and reset Last to 0 procedure Write_Statement_Buffer (S : String); -- First writes its argument (using Set_String (S)), then writes out the -- contents of statement buffer up to Last, and reset Last to 0 ------------------------------------ -- Check_System_Restrictions_Used -- ------------------------------------ procedure Check_System_Restrictions_Used is begin for J in Units.First .. Units.Last loop if Get_Name_String (Units.Table (J).Sfile) = "s-restri.ads" then System_Restrictions_Used := True; return; end if; end loop; System_Restrictions_Used := False; end Check_System_Restrictions_Used; ---------------------- -- Gen_Adafinal_Ada -- ---------------------- procedure Gen_Adafinal_Ada is begin WBI (""); WBI (" procedure " & Ada_Final_Name.all & " is"); WBI (" begin"); -- If compiling for the JVM, we directly call Adafinal because -- we don't import it via Do_Finalize (see Gen_Output_File_Ada). if VM_Target /= No_VM then WBI (" System.Standard_Library.Adafinal;"); -- If there is no finalization, there is nothing to do elsif Cumulative_Restrictions.Set (No_Finalization) then WBI (" null;"); else WBI (" Do_Finalize;"); end if; WBI (" end " & Ada_Final_Name.all & ";"); end Gen_Adafinal_Ada; -------------------- -- Gen_Adafinal_C -- -------------------- procedure Gen_Adafinal_C is begin WBI ("void " & Ada_Final_Name.all & " (void) {"); WBI (" system__standard_library__adafinal ();"); WBI ("}"); WBI (""); end Gen_Adafinal_C; --------------------- -- Gen_Adainit_Ada -- --------------------- procedure Gen_Adainit_Ada is Main_Priority : Int renames ALIs.Table (ALIs.First).Main_Priority; begin WBI (" procedure " & Ada_Init_Name.all & " is"); -- Generate externals for elaboration entities for E in Elab_Order.First .. Elab_Order.Last loop declare Unum : constant Unit_Id := Elab_Order.Table (E); U : Unit_Record renames Units.Table (Unum); begin -- Check for Elab_Entity to be set for this unit if U.Set_Elab_Entity -- Don't generate reference for stand alone library and then not U.SAL_Interface -- Don't generate reference for predefined file in No_Run_Time -- mode, since we don't include the object files in this case and then not (No_Run_Time_Mode and then Is_Predefined_File_Name (U.Sfile)) then Set_String (" "); Set_String ("E"); Set_Unit_Number (Unum); case VM_Target is when No_VM | JVM_Target => Set_String (" : Boolean; pragma Import (Ada, "); when CLI_Target => Set_String (" : Boolean; pragma Import (CIL, "); end case; Set_String ("E"); Set_Unit_Number (Unum); Set_String (", """); Get_Name_String (U.Uname); -- In the case of JGNAT we need to emit an Import name -- that includes the class name (using '$' separators -- in the case of a child unit name). if VM_Target /= No_VM then for J in 1 .. Name_Len - 2 loop if VM_Target = CLI_Target or else Name_Buffer (J) /= '.' then Set_Char (Name_Buffer (J)); else Set_String ("$"); end if; end loop; if VM_Target /= CLI_Target or else U.Unit_Kind = 's' then Set_String ("."); else Set_String ("_pkg."); end if; -- If the unit name is very long, then split the -- Import link name across lines using "&" (occurs -- in some C2 tests). if 2 * Name_Len + 60 > Hostparm.Max_Line_Length then Set_String (""" &"); Write_Statement_Buffer; Set_String (" """); end if; end if; Set_Unit_Name; Set_String ("_E"");"); Write_Statement_Buffer; end if; end; end loop; Write_Statement_Buffer; -- If the standard library is suppressed, then the only global variable -- that might be needed (by the Ravenscar profile) is the priority of -- the environment. if Suppress_Standard_Library_On_Target then if Main_Priority /= No_Main_Priority then WBI (" Main_Priority : Integer;"); WBI (" pragma Import (C, Main_Priority," & " ""__gl_main_priority"");"); WBI (""); end if; WBI (" begin"); if Main_Priority /= No_Main_Priority then Set_String (" Main_Priority := "); Set_Int (Main_Priority); Set_Char (';'); Write_Statement_Buffer; else WBI (" null;"); end if; -- Normal case (standard library not suppressed). Set all global values -- used by the run time. else WBI (" Main_Priority : Integer;"); WBI (" pragma Import (C, Main_Priority, " & """__gl_main_priority"");"); WBI (" Time_Slice_Value : Integer;"); WBI (" pragma Import (C, Time_Slice_Value, " & """__gl_time_slice_val"");"); WBI (" WC_Encoding : Character;"); WBI (" pragma Import (C, WC_Encoding, ""__gl_wc_encoding"");"); WBI (" Locking_Policy : Character;"); WBI (" pragma Import (C, Locking_Policy, " & """__gl_locking_policy"");"); WBI (" Queuing_Policy : Character;"); WBI (" pragma Import (C, Queuing_Policy, " & """__gl_queuing_policy"");"); WBI (" Task_Dispatching_Policy : Character;"); WBI (" pragma Import (C, Task_Dispatching_Policy, " & """__gl_task_dispatching_policy"");"); WBI (" Priority_Specific_Dispatching : System.Address;"); WBI (" pragma Import (C, Priority_Specific_Dispatching, " & """__gl_priority_specific_dispatching"");"); WBI (" Num_Specific_Dispatching : Integer;"); WBI (" pragma Import (C, Num_Specific_Dispatching, " & """__gl_num_specific_dispatching"");"); WBI (" Interrupt_States : System.Address;"); WBI (" pragma Import (C, Interrupt_States, " & """__gl_interrupt_states"");"); WBI (" Num_Interrupt_States : Integer;"); WBI (" pragma Import (C, Num_Interrupt_States, " & """__gl_num_interrupt_states"");"); WBI (" Unreserve_All_Interrupts : Integer;"); WBI (" pragma Import (C, Unreserve_All_Interrupts, " & """__gl_unreserve_all_interrupts"");"); if Exception_Tracebacks then WBI (" Exception_Tracebacks : Integer;"); WBI (" pragma Import (C, Exception_Tracebacks, " & """__gl_exception_tracebacks"");"); end if; WBI (" Zero_Cost_Exceptions : Integer;"); WBI (" pragma Import (C, Zero_Cost_Exceptions, " & """__gl_zero_cost_exceptions"");"); WBI (" Detect_Blocking : Integer;"); WBI (" pragma Import (C, Detect_Blocking, " & """__gl_detect_blocking"");"); WBI (" Default_Stack_Size : Integer;"); WBI (" pragma Import (C, Default_Stack_Size, " & """__gl_default_stack_size"");"); WBI (" Leap_Seconds_Support : Integer;"); WBI (" pragma Import (C, Leap_Seconds_Support, " & """__gl_leap_seconds_support"");"); -- Import entry point for elaboration time signal handler -- installation, and indication of if it's been called previously. WBI (""); WBI (" procedure Install_Handler;"); WBI (" pragma Import (C, Install_Handler, " & """__gnat_install_handler"");"); WBI (""); WBI (" Handler_Installed : Integer;"); WBI (" pragma Import (C, Handler_Installed, " & """__gnat_handler_installed"");"); -- Import entry point for environment feature enable/disable -- routine, and indication that it's been called previously. if OpenVMS_On_Target then WBI (""); WBI (" procedure Set_Features;"); WBI (" pragma Import (C, Set_Features, " & """__gnat_set_features"");"); WBI (""); WBI (" Features_Set : Integer;"); WBI (" pragma Import (C, Features_Set, " & """__gnat_features_set"");"); end if; -- Initialize stack limit variable of the environment task if the -- stack check method is stack limit and stack check is enabled. if Stack_Check_Limits_On_Target and then (Stack_Check_Default_On_Target or Stack_Check_Switch_Set) then WBI (""); WBI (" procedure Initialize_Stack_Limit;"); WBI (" pragma Import (C, Initialize_Stack_Limit, " & """__gnat_initialize_stack_limit"");"); end if; -- Special processing when main program is CIL function/procedure if VM_Target = CLI_Target and then Bind_Main_Program and then not No_Main_Subprogram then WBI (""); -- Function case, use Set_Exit_Status to report the returned -- status code, since that is the only mechanism available. if ALIs.Table (ALIs.First).Main_Program = Func then WBI (" Result : Integer;"); WBI (" procedure Set_Exit_Status (Code : Integer);"); WBI (" pragma Import (C, Set_Exit_Status, " & """__gnat_set_exit_status"");"); WBI (""); WBI (" function Ada_Main_Program return Integer;"); -- Procedure case else WBI (" procedure Ada_Main_Program;"); end if; Get_Name_String (Units.Table (First_Unit_Entry).Uname); Name_Len := Name_Len - 2; WBI (" pragma Import (CIL, Ada_Main_Program, """ & Name_Buffer (1 .. Name_Len) & "." & Get_Main_Unit_Name (Name_Buffer (1 .. Name_Len)) & """);"); end if; WBI (" begin"); Set_String (" Main_Priority := "); Set_Int (Main_Priority); Set_Char (';'); Write_Statement_Buffer; Set_String (" Time_Slice_Value := "); if Task_Dispatching_Policy_Specified = 'F' and then ALIs.Table (ALIs.First).Time_Slice_Value = -1 then Set_Int (0); else Set_Int (ALIs.Table (ALIs.First).Time_Slice_Value); end if; Set_Char (';'); Write_Statement_Buffer; Set_String (" WC_Encoding := '"); Set_Char (Get_WC_Encoding); Set_String ("';"); Write_Statement_Buffer; Set_String (" Locking_Policy := '"); Set_Char (Locking_Policy_Specified); Set_String ("';"); Write_Statement_Buffer; Set_String (" Queuing_Policy := '"); Set_Char (Queuing_Policy_Specified); Set_String ("';"); Write_Statement_Buffer; Set_String (" Task_Dispatching_Policy := '"); Set_Char (Task_Dispatching_Policy_Specified); Set_String ("';"); Write_Statement_Buffer; Gen_Restrictions_Ada; WBI (" Priority_Specific_Dispatching :="); WBI (" Local_Priority_Specific_Dispatching'Address;"); Set_String (" Num_Specific_Dispatching := "); Set_Int (PSD_Pragma_Settings.Last + 1); Set_Char (';'); Write_Statement_Buffer; WBI (" Interrupt_States := Local_Interrupt_States'Address;"); Set_String (" Num_Interrupt_States := "); Set_Int (IS_Pragma_Settings.Last + 1); Set_Char (';'); Write_Statement_Buffer; Set_String (" Unreserve_All_Interrupts := "); if Unreserve_All_Interrupts_Specified then Set_String ("1"); else Set_String ("0"); end if; Set_Char (';'); Write_Statement_Buffer; if Exception_Tracebacks then WBI (" Exception_Tracebacks := 1;"); end if; Set_String (" Zero_Cost_Exceptions := "); if Zero_Cost_Exceptions_Specified then Set_String ("1"); else Set_String ("0"); end if; Set_String (";"); Write_Statement_Buffer; Set_String (" Detect_Blocking := "); if Detect_Blocking then Set_Int (1); else Set_Int (0); end if; Set_String (";"); Write_Statement_Buffer; Set_String (" Default_Stack_Size := "); Set_Int (Default_Stack_Size); Set_String (";"); Write_Statement_Buffer; Set_String (" Leap_Seconds_Support := "); if Leap_Seconds_Support then Set_Int (1); else Set_Int (0); end if; Set_String (";"); Write_Statement_Buffer; -- Generate call to Install_Handler WBI (""); WBI (" if Handler_Installed = 0 then"); WBI (" Install_Handler;"); WBI (" end if;"); -- Generate call to Set_Features if OpenVMS_On_Target then WBI (""); WBI (" if Features_Set = 0 then"); WBI (" Set_Features;"); WBI (" end if;"); end if; end if; -- Generate call to set Initialize_Scalar values if active if Initialize_Scalars_Used then WBI (""); Set_String (" System.Scalar_Values.Initialize ('"); Set_Char (Initialize_Scalars_Mode1); Set_String ("', '"); Set_Char (Initialize_Scalars_Mode2); Set_String ("');"); Write_Statement_Buffer; end if; -- Generate assignment of default secondary stack size if set if Sec_Stack_Used and then Default_Sec_Stack_Size /= -1 then WBI (""); Set_String (" System.Secondary_Stack."); Set_String ("Default_Secondary_Stack_Size := "); Set_Int (Opt.Default_Sec_Stack_Size); Set_Char (';'); Write_Statement_Buffer; end if; -- Initialize stack limit variable of the environment task if the -- stack check method is stack limit and stack check is enabled. if Stack_Check_Limits_On_Target and then (Stack_Check_Default_On_Target or Stack_Check_Switch_Set) then WBI (""); WBI (" Initialize_Stack_Limit;"); end if; -- Generate elaboration calls WBI (""); Gen_Elab_Calls_Ada; -- Case of main program is CIL function or procedure if VM_Target = CLI_Target and then Bind_Main_Program and then not No_Main_Subprogram then -- For function case, use Set_Exit_Status to set result if ALIs.Table (ALIs.First).Main_Program = Func then WBI (" Result := Ada_Main_Program;"); WBI (" Set_Exit_Status (Result);"); -- Procedure case else WBI (" Ada_Main_Program;"); end if; end if; WBI (" end " & Ada_Init_Name.all & ";"); end Gen_Adainit_Ada; ------------------- -- Gen_Adainit_C -- -------------------- procedure Gen_Adainit_C is Main_Priority : Int renames ALIs.Table (ALIs.First).Main_Priority; begin WBI ("void " & Ada_Init_Name.all & " (void)"); WBI ("{"); -- Generate externals for elaboration entities for E in Elab_Order.First .. Elab_Order.Last loop declare Unum : constant Unit_Id := Elab_Order.Table (E); U : Unit_Record renames Units.Table (Unum); begin -- Check for Elab entity to be set for this unit if U.Set_Elab_Entity -- Don't generate reference for stand alone library and then not U.SAL_Interface -- Don't generate reference for predefined file in No_Run_Time -- mode, since we don't include the object files in this case and then not (No_Run_Time_Mode and then Is_Predefined_File_Name (U.Sfile)) then Set_String (" extern char "); Get_Name_String (U.Uname); Set_Unit_Name; Set_String ("_E;"); Write_Statement_Buffer; end if; end; end loop; Write_Statement_Buffer; -- Standard library suppressed if Suppress_Standard_Library_On_Target then -- Case of High_Integrity_Mode mode. Set __gl_main_priority if needed -- for the Ravenscar profile. if Main_Priority /= No_Main_Priority then WBI (" extern int __gl_main_priority;"); Set_String (" __gl_main_priority = "); Set_Int (Main_Priority); Set_Char (';'); Write_Statement_Buffer; end if; -- Normal case (standard library not suppressed) else -- Generate definition for interrupt states string Set_String (" static const char *local_interrupt_states = """); for J in 0 .. IS_Pragma_Settings.Last loop Set_Char (IS_Pragma_Settings.Table (J)); end loop; Set_String (""";"); Write_Statement_Buffer; -- Generate definition for priority specific dispatching string Set_String (" static const char *local_priority_specific_dispatching = """); for J in 0 .. PSD_Pragma_Settings.Last loop Set_Char (PSD_Pragma_Settings.Table (J)); end loop; Set_String (""";"); Write_Statement_Buffer; -- Generate declaration for secondary stack default if needed if Sec_Stack_Used and then Default_Sec_Stack_Size /= -1 then WBI (" extern int system__secondary_stack__" & "default_secondary_stack_size;"); end if; WBI (""); -- Code for normal case (standard library not suppressed) -- We call the routine from inside adainit() because this works for -- both programs with and without binder generated "main" functions. WBI (" extern int __gl_main_priority;"); Set_String (" __gl_main_priority = "); Set_Int (Main_Priority); Set_Char (';'); Write_Statement_Buffer; WBI (" extern int __gl_time_slice_val;"); Set_String (" __gl_time_slice_val = "); if Task_Dispatching_Policy = 'F' and then ALIs.Table (ALIs.First).Time_Slice_Value = -1 then Set_Int (0); else Set_Int (ALIs.Table (ALIs.First).Time_Slice_Value); end if; Set_Char (';'); Write_Statement_Buffer; WBI (" extern char __gl_wc_encoding;"); Set_String (" __gl_wc_encoding = '"); Set_Char (Get_WC_Encoding); Set_String ("';"); Write_Statement_Buffer; WBI (" extern char __gl_locking_policy;"); Set_String (" __gl_locking_policy = '"); Set_Char (Locking_Policy_Specified); Set_String ("';"); Write_Statement_Buffer; WBI (" extern char __gl_queuing_policy;"); Set_String (" __gl_queuing_policy = '"); Set_Char (Queuing_Policy_Specified); Set_String ("';"); Write_Statement_Buffer; WBI (" extern char __gl_task_dispatching_policy;"); Set_String (" __gl_task_dispatching_policy = '"); Set_Char (Task_Dispatching_Policy_Specified); Set_String ("';"); Write_Statement_Buffer; Gen_Restrictions_C; WBI (" extern const void *__gl_interrupt_states;"); WBI (" __gl_interrupt_states = local_interrupt_states;"); WBI (" extern int __gl_num_interrupt_states;"); Set_String (" __gl_num_interrupt_states = "); Set_Int (IS_Pragma_Settings.Last + 1); Set_String (";"); Write_Statement_Buffer; WBI (" extern const void *__gl_priority_specific_dispatching;"); WBI (" __gl_priority_specific_dispatching =" & " local_priority_specific_dispatching;"); WBI (" extern int __gl_num_specific_dispatching;"); Set_String (" __gl_num_specific_dispatching = "); Set_Int (PSD_Pragma_Settings.Last + 1); Set_String (";"); Write_Statement_Buffer; WBI (" extern int __gl_unreserve_all_interrupts;"); Set_String (" __gl_unreserve_all_interrupts = "); Set_Int (Boolean'Pos (Unreserve_All_Interrupts_Specified)); Set_String (";"); Write_Statement_Buffer; if Exception_Tracebacks then WBI (" extern int __gl_exception_tracebacks;"); WBI (" __gl_exception_tracebacks = 1;"); end if; WBI (" extern int __gl_zero_cost_exceptions;"); Set_String (" __gl_zero_cost_exceptions = "); Set_Int (Boolean'Pos (Zero_Cost_Exceptions_Specified)); Set_String (";"); Write_Statement_Buffer; WBI (" extern int __gl_detect_blocking;"); Set_String (" __gl_detect_blocking = "); if Detect_Blocking then Set_Int (1); else Set_Int (0); end if; Set_String (";"); Write_Statement_Buffer; WBI (" extern int __gl_default_stack_size;"); Set_String (" __gl_default_stack_size = "); Set_Int (Default_Stack_Size); Set_String (";"); Write_Statement_Buffer; WBI (" extern int __gl_leap_seconds_support;"); Set_String (" __gl_leap_seconds_support = "); if Leap_Seconds_Support then Set_Int (1); else Set_Int (0); end if; Set_String (";"); Write_Statement_Buffer; WBI (""); -- Install elaboration time signal handler WBI (" if (__gnat_handler_installed == 0)"); WBI (" {"); WBI (" __gnat_install_handler ();"); WBI (" }"); -- Call feature enable/disable routine if OpenVMS_On_Target then WBI (" if (__gnat_features_set == 0)"); WBI (" {"); WBI (" __gnat_set_features ();"); WBI (" }"); end if; end if; -- Initialize stack limit for the environment task if the stack -- check method is stack limit and stack check is enabled. if Stack_Check_Limits_On_Target and then (Stack_Check_Default_On_Target or Stack_Check_Switch_Set) then WBI (""); WBI (" __gnat_initialize_stack_limit ();"); end if; -- Generate call to set Initialize_Scalar values if needed if Initialize_Scalars_Used then WBI (""); Set_String (" system__scalar_values__initialize('"); Set_Char (Initialize_Scalars_Mode1); Set_String ("', '"); Set_Char (Initialize_Scalars_Mode2); Set_String ("');"); Write_Statement_Buffer; end if; -- Generate assignment of default secondary stack size if set if Sec_Stack_Used and then Default_Sec_Stack_Size /= -1 then WBI (""); Set_String (" system__secondary_stack__"); Set_String ("default_secondary_stack_size = "); Set_Int (Opt.Default_Sec_Stack_Size); Set_Char (';'); Write_Statement_Buffer; end if; -- Generate elaboration calls WBI (""); Gen_Elab_Calls_C; WBI ("}"); end Gen_Adainit_C; ------------------------ -- Gen_Elab_Calls_Ada -- ------------------------ procedure Gen_Elab_Calls_Ada is begin for E in Elab_Order.First .. Elab_Order.Last loop declare Unum : constant Unit_Id := Elab_Order.Table (E); U : Unit_Record renames Units.Table (Unum); Unum_Spec : Unit_Id; -- This is the unit number of the spec that corresponds to -- this entry. It is the same as Unum except when the body -- and spec are different and we are currently processing -- the body, in which case it is the spec (Unum + 1). begin if U.Utype = Is_Body then Unum_Spec := Unum + 1; else Unum_Spec := Unum; end if; -- Nothing to do if predefined unit in no run time mode if No_Run_Time_Mode and then Is_Predefined_File_Name (U.Sfile) then null; -- Case of no elaboration code elsif U.No_Elab then -- The only case in which we have to do something is if -- this is a body, with a separate spec, where the separate -- spec has an elaboration entity defined. -- In that case, this is where we set the elaboration entity -- to True, we do not need to test if this has already been -- done, since it is quicker to set the flag than to test it. if not U.SAL_Interface and then U.Utype = Is_Body and then Units.Table (Unum_Spec).Set_Elab_Entity then Set_String (" E"); Set_Unit_Number (Unum_Spec); Set_String (" := True;"); Write_Statement_Buffer; end if; -- Here if elaboration code is present. If binding a library -- or if there is a non-Ada main subprogram then we generate: -- if not uname_E then -- uname'elab_[spec|body]; -- uname_E := True; -- end if; -- Otherwise, elaboration routines are called unconditionally: -- uname'elab_[spec|body]; -- uname_E := True; -- The uname_E assignment is skipped if this is a separate spec, -- since the assignment will be done when we process the body. elsif not U.SAL_Interface then if Force_Checking_Of_Elaboration_Flags or Interface_Library_Unit or (not Bind_Main_Program) then Set_String (" if not E"); Set_Unit_Number (Unum_Spec); Set_String (" then"); Write_Statement_Buffer; Set_String (" "); end if; Set_String (" "); Get_Decoded_Name_String_With_Brackets (U.Uname); if VM_Target = CLI_Target and then U.Unit_Kind /= 's' then if Name_Buffer (Name_Len) = 's' then Name_Buffer (Name_Len - 1 .. Name_Len + 12) := "_pkg'elab_spec"; else Name_Buffer (Name_Len - 1 .. Name_Len + 12) := "_pkg'elab_body"; end if; Name_Len := Name_Len + 12; else if Name_Buffer (Name_Len) = 's' then Name_Buffer (Name_Len - 1 .. Name_Len + 8) := "'elab_spec"; else Name_Buffer (Name_Len - 1 .. Name_Len + 8) := "'elab_body"; end if; Name_Len := Name_Len + 8; end if; Set_Casing (U.Icasing); Set_Name_Buffer; Set_Char (';'); Write_Statement_Buffer; if U.Utype /= Is_Spec then if Force_Checking_Of_Elaboration_Flags or Interface_Library_Unit or (not Bind_Main_Program) then Set_String (" "); end if; Set_String (" E"); Set_Unit_Number (Unum_Spec); Set_String (" := True;"); Write_Statement_Buffer; end if; if Force_Checking_Of_Elaboration_Flags or Interface_Library_Unit or (not Bind_Main_Program) then WBI (" end if;"); end if; end if; end; end loop; end Gen_Elab_Calls_Ada; ---------------------- -- Gen_Elab_Calls_C -- ---------------------- procedure Gen_Elab_Calls_C is begin for E in Elab_Order.First .. Elab_Order.Last loop declare Unum : constant Unit_Id := Elab_Order.Table (E); U : Unit_Record renames Units.Table (Unum); Unum_Spec : Unit_Id; -- This is the unit number of the spec that corresponds to -- this entry. It is the same as Unum except when the body -- and spec are different and we are currently processing -- the body, in which case it is the spec (Unum + 1). begin if U.Utype = Is_Body then Unum_Spec := Unum + 1; else Unum_Spec := Unum; end if; -- Nothing to do if predefined unit in no run time mode if No_Run_Time_Mode and then Is_Predefined_File_Name (U.Sfile) then null; -- Case of no elaboration code elsif U.No_Elab then -- The only case in which we have to do something is if -- this is a body, with a separate spec, where the separate -- spec has an elaboration entity defined. -- In that case, this is where we set the elaboration entity -- to True, we do not need to test if this has already been -- done, since it is quicker to set the flag than to test it. if not U.SAL_Interface and then U.Utype = Is_Body and then Units.Table (Unum_Spec).Set_Elab_Entity then Set_String (" "); Get_Name_String (U.Uname); Set_Unit_Name; Set_String ("_E = 1;"); Write_Statement_Buffer; end if; -- Here if elaboration code is present. If binding a library -- or if there is a non-Ada main subprogram then we generate: -- if (uname_E == 0) { -- uname__elab[s|b] (); -- uname_E++; -- } -- The uname_E assignment is skipped if this is a separate spec, -- since the assignment will be done when we process the body. elsif not U.SAL_Interface then Get_Name_String (U.Uname); if Force_Checking_Of_Elaboration_Flags or Interface_Library_Unit or (not Bind_Main_Program) then Set_String (" if ("); Set_Unit_Name; Set_String ("_E == 0) {"); Write_Statement_Buffer; Set_String (" "); end if; Set_String (" "); Set_Unit_Name; Set_String ("___elab"); Set_Char (Name_Buffer (Name_Len)); -- 's' or 'b' for spec/body Set_String (" ();"); Write_Statement_Buffer; if U.Utype /= Is_Spec then if Force_Checking_Of_Elaboration_Flags or Interface_Library_Unit or (not Bind_Main_Program) then Set_String (" "); end if; Set_String (" "); Set_Unit_Name; Set_String ("_E++;"); Write_Statement_Buffer; end if; if Force_Checking_Of_Elaboration_Flags or Interface_Library_Unit or (not Bind_Main_Program) then WBI (" }"); end if; end if; end; end loop; end Gen_Elab_Calls_C; ---------------------- -- Gen_Elab_Defs_C -- ---------------------- procedure Gen_Elab_Defs_C is begin for E in Elab_Order.First .. Elab_Order.Last loop -- Generate declaration of elaboration procedure if elaboration -- needed. Note that passive units are always excluded. if not Units.Table (Elab_Order.Table (E)).No_Elab then Get_Name_String (Units.Table (Elab_Order.Table (E)).Uname); Set_String ("extern void "); Set_Unit_Name; Set_String ("___elab"); Set_Char (Name_Buffer (Name_Len)); -- 's' or 'b' for spec/body Set_String (" (void);"); Write_Statement_Buffer; end if; end loop; WBI (""); end Gen_Elab_Defs_C; ------------------------ -- Gen_Elab_Order_Ada -- ------------------------ procedure Gen_Elab_Order_Ada is begin WBI (""); WBI (" -- BEGIN ELABORATION ORDER"); for J in Elab_Order.First .. Elab_Order.Last loop Set_String (" -- "); Get_Name_String (Units.Table (Elab_Order.Table (J)).Uname); Set_Name_Buffer; Write_Statement_Buffer; end loop; WBI (" -- END ELABORATION ORDER"); end Gen_Elab_Order_Ada; ---------------------- -- Gen_Elab_Order_C -- ---------------------- procedure Gen_Elab_Order_C is begin WBI (""); WBI ("/* BEGIN ELABORATION ORDER"); for J in Elab_Order.First .. Elab_Order.Last loop Get_Name_String (Units.Table (Elab_Order.Table (J)).Uname); Set_Name_Buffer; Write_Statement_Buffer; end loop; WBI (" END ELABORATION ORDER */"); end Gen_Elab_Order_C; ------------------ -- Gen_Main_Ada -- ------------------ procedure Gen_Main_Ada is begin WBI (""); if Exit_Status_Supported_On_Target then Set_String (" function "); else Set_String (" procedure "); end if; Set_String (Get_Main_Name); if Command_Line_Args_On_Target then Write_Statement_Buffer; WBI (" (argc : Integer;"); WBI (" argv : System.Address;"); WBI (" envp : System.Address)"); if Exit_Status_Supported_On_Target then WBI (" return Integer"); end if; WBI (" is"); else if Exit_Status_Supported_On_Target then Set_String (" return Integer is"); else Set_String (" is"); end if; Write_Statement_Buffer; end if; if Opt.Default_Exit_Status /= 0 and then Bind_Main_Program and then not Configurable_Run_Time_Mode then WBI (" procedure Set_Exit_Status (Status : Integer);"); WBI (" pragma Import (C, Set_Exit_Status, " & """__gnat_set_exit_status"");"); WBI (""); end if; -- Initialize and Finalize if not Cumulative_Restrictions.Set (No_Finalization) then WBI (" procedure initialize (Addr : System.Address);"); WBI (" pragma Import (C, initialize, ""__gnat_initialize"");"); WBI (""); WBI (" procedure finalize;"); WBI (" pragma Import (C, finalize, ""__gnat_finalize"");"); end if; -- If we want to analyze the stack, we have to import corresponding -- symbols if Dynamic_Stack_Measurement then WBI (""); WBI (" procedure Output_Results;"); WBI (" pragma Import (C, Output_Results, " & """__gnat_stack_usage_output_results"");"); WBI (""); WBI (" " & "procedure Initialize_Stack_Analysis (Buffer_Size : Natural);"); WBI (" pragma Import (C, Initialize_Stack_Analysis, " & """__gnat_stack_usage_initialize"");"); end if; -- Deal with declarations for main program case if not No_Main_Subprogram then -- To call the main program, we declare it using a pragma Import -- Ada with the right link name. -- It might seem more obvious to "with" the main program, and call -- it in the normal Ada manner. We do not do this for three reasons: -- 1. It is more efficient not to recompile the main program -- 2. We are not entitled to assume the source is accessible -- 3. We don't know what options to use to compile it -- It is really reason 3 that is most critical (indeed we used -- to generate the "with", but several regression tests failed). WBI (""); if ALIs.Table (ALIs.First).Main_Program = Func then WBI (" Result : Integer;"); WBI (""); WBI (" function Ada_Main_Program return Integer;"); else WBI (" procedure Ada_Main_Program;"); end if; Set_String (" pragma Import (Ada, Ada_Main_Program, """); Get_Name_String (Units.Table (First_Unit_Entry).Uname); Set_Main_Program_Name; Set_String (""");"); Write_Statement_Buffer; WBI (""); if Bind_Main_Program and then not Suppress_Standard_Library_On_Target then WBI (" SEH : aliased array (1 .. 2) of Integer;"); WBI (""); end if; end if; -- Generate a reference to Ada_Main_Program_Name. This symbol is -- not referenced elsewhere in the generated program, but is needed -- by the debugger (that's why it is generated in the first place). -- The reference stops Ada_Main_Program_Name from being optimized -- away by smart linkers, such as the AiX linker. -- Because this variable is unused, we make this variable "aliased" -- with a pragma Volatile in order to tell the compiler to preserve -- this variable at any level of optimization. if Bind_Main_Program then WBI (" Ensure_Reference : aliased System.Address := " & "Ada_Main_Program_Name'Address;"); WBI (" pragma Volatile (Ensure_Reference);"); WBI (""); end if; WBI (" begin"); -- Acquire command line arguments if present on target if Command_Line_Args_On_Target then WBI (" gnat_argc := argc;"); WBI (" gnat_argv := argv;"); WBI (" gnat_envp := envp;"); WBI (""); -- If configurable run time and no command line args, then nothing -- needs to be done since the gnat_argc/argv/envp variables are -- suppressed in this case. elsif Configurable_Run_Time_On_Target then null; -- Otherwise set dummy values (to be filled in by some other unit?) else WBI (" gnat_argc := 0;"); WBI (" gnat_argv := System.Null_Address;"); WBI (" gnat_envp := System.Null_Address;"); end if; if Opt.Default_Exit_Status /= 0 and then Bind_Main_Program and then not Configurable_Run_Time_Mode then Set_String (" Set_Exit_Status ("); Set_Int (Opt.Default_Exit_Status); Set_String (");"); Write_Statement_Buffer; end if; if Dynamic_Stack_Measurement then Set_String (" Initialize_Stack_Analysis ("); Set_Int (Dynamic_Stack_Measurement_Array_Size); Set_String (");"); Write_Statement_Buffer; end if; if not Cumulative_Restrictions.Set (No_Finalization) then if not No_Main_Subprogram and then Bind_Main_Program and then not Suppress_Standard_Library_On_Target then WBI (" Initialize (SEH'Address);"); else WBI (" Initialize (System.Null_Address);"); end if; end if; WBI (" " & Ada_Init_Name.all & ";"); if not No_Main_Subprogram then WBI (" Break_Start;"); if ALIs.Table (ALIs.First).Main_Program = Proc then WBI (" Ada_Main_Program;"); else WBI (" Result := Ada_Main_Program;"); end if; end if; -- Adafinal call is skipped if no finalization if not Cumulative_Restrictions.Set (No_Finalization) then -- If compiling for the JVM, we directly call Adafinal because -- we don't import it via Do_Finalize (see Gen_Output_File_Ada). if VM_Target = No_VM then WBI (" Do_Finalize;"); else WBI (" System.Standard_Library.Adafinal;"); end if; end if; -- Prints the result of static stack analysis if Dynamic_Stack_Measurement then WBI (" Output_Results;"); end if; -- Finalize is only called if we have a run time if not Cumulative_Restrictions.Set (No_Finalization) then WBI (" Finalize;"); end if; -- Return result if Exit_Status_Supported_On_Target then if No_Main_Subprogram or else ALIs.Table (ALIs.First).Main_Program = Proc then WBI (" return (gnat_exit_status);"); else WBI (" return (Result);"); end if; end if; WBI (" end;"); end Gen_Main_Ada; ---------------- -- Gen_Main_C -- ---------------- procedure Gen_Main_C is begin if Exit_Status_Supported_On_Target then WBI ("#include <stdlib.h>"); Set_String ("int "); else Set_String ("void "); end if; Set_String (Get_Main_Name); -- Generate command line args in prototype if present on target if Command_Line_Args_On_Target then Write_Statement_Buffer (" (int argc, char **argv, char **envp)"); -- Case of no command line arguments on target else Write_Statement_Buffer (" (void)"); end if; WBI ("{"); -- Generate a reference to __gnat_ada_main_program_name. This symbol -- is not referenced elsewhere in the generated program, but is -- needed by the debugger (that's why it is generated in the first -- place). The reference stops Ada_Main_Program_Name from being -- optimized away by smart linkers, such as the AiX linker. -- Because this variable is unused, we declare this variable as -- volatile in order to tell the compiler to preserve it at any -- level of optimization. if Bind_Main_Program then WBI (" char * volatile ensure_reference " & "__attribute__ ((__unused__)) = " & "__gnat_ada_main_program_name;"); WBI (""); if not Suppress_Standard_Library_On_Target and then not No_Main_Subprogram then WBI (" int SEH [2];"); WBI (""); end if; end if; -- If main program is a function, generate result variable if ALIs.Table (ALIs.First).Main_Program = Func then WBI (" int result;"); end if; -- Set command line argument values from parameters if command line -- arguments are present on target if Command_Line_Args_On_Target then WBI (" gnat_argc = argc;"); WBI (" gnat_argv = argv;"); WBI (" gnat_envp = envp;"); WBI (" "); -- If configurable run-time, then nothing to do, since in this case -- the gnat_argc/argv/envp variables are entirely suppressed. elsif Configurable_Run_Time_On_Target then null; -- if no command line arguments on target, set dummy values else WBI (" gnat_argc = 0;"); WBI (" gnat_argv = 0;"); WBI (" gnat_envp = 0;"); end if; if Opt.Default_Exit_Status /= 0 and then Bind_Main_Program and then not Configurable_Run_Time_Mode then Set_String (" __gnat_set_exit_status ("); Set_Int (Opt.Default_Exit_Status); Set_String (");"); Write_Statement_Buffer; end if; -- Initializes dynamic stack measurement if needed if Dynamic_Stack_Measurement then Set_String (" __gnat_stack_usage_initialize ("); Set_Int (Dynamic_Stack_Measurement_Array_Size); Set_String (");"); Write_Statement_Buffer; end if; -- The __gnat_initialize routine is used only if we have a run-time if not Suppress_Standard_Library_On_Target then if not No_Main_Subprogram and then Bind_Main_Program then WBI (" __gnat_initialize ((void *)SEH);"); else WBI (" __gnat_initialize ((void *)0);"); end if; end if; WBI (" " & Ada_Init_Name.all & " ();"); if not No_Main_Subprogram then WBI (" __gnat_break_start ();"); WBI (" "); -- Output main program name Get_Name_String (Units.Table (First_Unit_Entry).Uname); -- Main program is procedure case if ALIs.Table (ALIs.First).Main_Program = Proc then Set_String (" "); Set_Main_Program_Name; Set_String (" ();"); Write_Statement_Buffer; -- Main program is function case else -- ALIs.Table (ALIs_First).Main_Program = Func Set_String (" result = "); Set_Main_Program_Name; Set_String (" ();"); Write_Statement_Buffer; end if; end if; -- Call adafinal if finalization active if not Cumulative_Restrictions.Set (No_Finalization) then WBI (" "); WBI (" system__standard_library__adafinal ();"); end if; -- Outputs the dynamic stack measurement if needed if Dynamic_Stack_Measurement then WBI (" __gnat_stack_usage_output_results ();"); end if; -- The finalize routine is used only if we have a run-time if not Suppress_Standard_Library_On_Target then WBI (" __gnat_finalize ();"); end if; -- Case of main program is a function, so the value it returns -- is the exit status in this case. if ALIs.Table (ALIs.First).Main_Program = Func then if Exit_Status_Supported_On_Target then -- VMS must use Posix exit routine in order to get the effect -- of a Unix compatible setting of the program exit status. -- For all other systems, we use the standard exit routine. if OpenVMS_On_Target then WBI (" decc$__posix_exit (result);"); else WBI (" exit (result);"); end if; end if; -- Case of main program is a procedure, in which case the exit -- status is whatever was set by a Set_Exit call most recently else if Exit_Status_Supported_On_Target then -- VMS must use Posix exit routine in order to get the effect -- of a Unix compatible setting of the program exit status. -- For all other systems, we use the standard exit routine. if OpenVMS_On_Target then WBI (" decc$__posix_exit (gnat_exit_status);"); else WBI (" exit (gnat_exit_status);"); end if; end if; end if; WBI ("}"); end Gen_Main_C; ------------------------------ -- Gen_Object_Files_Options -- ------------------------------ procedure Gen_Object_Files_Options is Lgnat : Natural; -- This keeps track of the position in the sorted set of entries -- in the Linker_Options table of where the first entry from an -- internal file appears. Linker_Option_List_Started : Boolean := False; -- Set to True when "LINKER OPTION LIST" is displayed procedure Write_Linker_Option; -- Write binder info linker option ------------------------- -- Write_Linker_Option -- ------------------------- procedure Write_Linker_Option is Start : Natural; Stop : Natural; begin -- Loop through string, breaking at null's Start := 1; while Start < Name_Len loop -- Find null ending this section Stop := Start + 1; while Name_Buffer (Stop) /= ASCII.NUL and then Stop <= Name_Len loop Stop := Stop + 1; end loop; -- Process section if non-null if Stop > Start then if Output_Linker_Option_List then if not Zero_Formatting then if not Linker_Option_List_Started then Linker_Option_List_Started := True; Write_Eol; Write_Str (" LINKER OPTION LIST"); Write_Eol; Write_Eol; end if; Write_Str (" "); end if; Write_Str (Name_Buffer (Start .. Stop - 1)); Write_Eol; end if; Write_Info_Ada_C (" -- ", "", Name_Buffer (Start .. Stop - 1)); end if; Start := Stop + 1; end loop; end Write_Linker_Option; -- Start of processing for Gen_Object_Files_Options begin WBI (""); Write_Info_Ada_C ("-- ", "/* ", " BEGIN Object file/option list"); for E in Elab_Order.First .. Elab_Order.Last loop -- If not spec that has an associated body, then generate a -- comment giving the name of the corresponding object file. if (not Units.Table (Elab_Order.Table (E)).SAL_Interface) and then Units.Table (Elab_Order.Table (E)).Utype /= Is_Spec then Get_Name_String (ALIs.Table (Units.Table (Elab_Order.Table (E)).My_ALI).Ofile_Full_Name); -- If the presence of an object file is necessary or if it -- exists, then use it. if not Hostparm.Exclude_Missing_Objects or else System.OS_Lib.Is_Regular_File (Name_Buffer (1 .. Name_Len)) then Write_Info_Ada_C (" -- ", "", Name_Buffer (1 .. Name_Len)); if Output_Object_List then Write_Str (Name_Buffer (1 .. Name_Len)); Write_Eol; end if; -- Don't link with the shared library on VMS if an internal -- filename object is seen. Multiply defined symbols will -- result. if OpenVMS_On_Target and then Is_Internal_File_Name (ALIs.Table (Units.Table (Elab_Order.Table (E)).My_ALI).Sfile) then -- Special case for g-trasym.obj, which is not included -- in libgnat. Get_Name_String (ALIs.Table (Units.Table (Elab_Order.Table (E)).My_ALI).Sfile); if Name_Buffer (1 .. 8) /= "g-trasym" then Opt.Shared_Libgnat := False; end if; end if; end if; end if; end loop; -- Add a "-Ldir" for each directory in the object path for J in 1 .. Nb_Dir_In_Obj_Search_Path loop declare Dir : constant String_Ptr := Dir_In_Obj_Search_Path (J); begin Name_Len := 0; Add_Str_To_Name_Buffer ("-L"); Add_Str_To_Name_Buffer (Dir.all); Write_Linker_Option; end; end loop; -- Sort linker options -- This sort accomplishes two important purposes: -- a) All application files are sorted to the front, and all -- GNAT internal files are sorted to the end. This results -- in a well defined dividing line between the two sets of -- files, for the purpose of inserting certain standard -- library references into the linker arguments list. -- b) Given two different units, we sort the linker options so -- that those from a unit earlier in the elaboration order -- comes later in the list. This is a heuristic designed -- to create a more friendly order of linker options when -- the operations appear in separate units. The idea is that -- if unit A must be elaborated before unit B, then it is -- more likely that B references libraries included by A, -- than vice versa, so we want the libraries included by -- A to come after the libraries included by B. -- These two criteria are implemented by function Lt_Linker_Option. -- Note that a special case of b) is that specs are elaborated before -- bodies, so linker options from specs come after linker options -- for bodies, and again, the assumption is that libraries used by -- the body are more likely to reference libraries used by the spec, -- than vice versa. Sort (Linker_Options.Last, Move_Linker_Option'Access, Lt_Linker_Option'Access); -- Write user linker options, i.e. the set of linker options that -- come from all files other than GNAT internal files, Lgnat is -- left set to point to the first entry from a GNAT internal file, -- or past the end of the entriers if there are no internal files. Lgnat := Linker_Options.Last + 1; for J in 1 .. Linker_Options.Last loop if not Linker_Options.Table (J).Internal_File then Get_Name_String (Linker_Options.Table (J).Name); Write_Linker_Option; else Lgnat := J; exit; end if; end loop; -- Now we insert standard linker options that must appear after the -- entries from user files, and before the entries from GNAT run-time -- files. The reason for this decision is that libraries referenced -- by internal routines may reference these standard library entries. -- Note that we do not insert anything when pragma No_Run_Time has been -- specified or when the standard libraries are not to be used, -- otherwise on some platforms, such as VMS, we may get duplicate -- symbols when linking. if not (Opt.No_Run_Time_Mode or else Opt.No_Stdlib) then Name_Len := 0; if Opt.Shared_Libgnat then Add_Str_To_Name_Buffer ("-shared"); else Add_Str_To_Name_Buffer ("-static"); end if; -- Write directly to avoid -K output (why???) Write_Info_Ada_C (" -- ", "", Name_Buffer (1 .. Name_Len)); if With_DECGNAT then Name_Len := 0; if Opt.Shared_Libgnat then Add_Str_To_Name_Buffer (Shared_Lib ("decgnat")); else Add_Str_To_Name_Buffer ("-ldecgnat"); end if; Write_Linker_Option; end if; if With_GNARL then Name_Len := 0; if Opt.Shared_Libgnat then Add_Str_To_Name_Buffer (Shared_Lib ("gnarl")); else Add_Str_To_Name_Buffer ("-lgnarl"); end if; Write_Linker_Option; end if; Name_Len := 0; if Opt.Shared_Libgnat then Add_Str_To_Name_Buffer (Shared_Lib ("gnat")); else Add_Str_To_Name_Buffer ("-lgnat"); end if; Write_Linker_Option; end if; -- Write linker options from all internal files for J in Lgnat .. Linker_Options.Last loop Get_Name_String (Linker_Options.Table (J).Name); Write_Linker_Option; end loop; if Output_Linker_Option_List and then not Zero_Formatting then Write_Eol; end if; if Ada_Bind_File then WBI ("-- END Object file/option list "); else WBI (" END Object file/option list */"); end if; end Gen_Object_Files_Options; --------------------- -- Gen_Output_File -- --------------------- procedure Gen_Output_File (Filename : String) is begin -- Acquire settings for Interrupt_State pragmas Set_IS_Pragma_Table; -- Acquire settings for Priority_Specific_Dispatching pragma Set_PSD_Pragma_Table; -- Override Ada_Bind_File and Bind_Main_Program for VMs since -- JGNAT only supports Ada code, and the main program is already -- generated by the compiler. if VM_Target /= No_VM then Ada_Bind_File := True; if VM_Target = JVM_Target then Bind_Main_Program := False; end if; end if; -- Override time slice value if -T switch is set if Time_Slice_Set then ALIs.Table (ALIs.First).Time_Slice_Value := Opt.Time_Slice_Value; end if; -- Count number of elaboration calls for E in Elab_Order.First .. Elab_Order.Last loop if Units.Table (Elab_Order.Table (E)).No_Elab then null; else Num_Elab_Calls := Num_Elab_Calls + 1; end if; end loop; -- Generate output file in appropriate language Check_System_Restrictions_Used; if Ada_Bind_File then Gen_Output_File_Ada (Filename); else Gen_Output_File_C (Filename); end if; end Gen_Output_File; ------------------------- -- Gen_Output_File_Ada -- ------------------------- procedure Gen_Output_File_Ada (Filename : String) is Bfiles : Name_Id; -- Name of generated bind file (spec) Bfileb : Name_Id; -- Name of generated bind file (body) Ada_Main : constant String := Get_Ada_Main_Name; -- Name to be used for generated Ada main program. See the body of -- function Get_Ada_Main_Name for details on the form of the name. begin -- Create spec first Create_Binder_Output (Filename, 's', Bfiles); -- We always compile the binder file in Ada 95 mode so that we properly -- handle use of Ada 2005 keywords as identifiers in Ada 95 mode. None -- of the Ada 2005 constructs are needed by the binder file. WBI ("pragma Ada_95;"); -- If we are operating in Restrictions (No_Exception_Handlers) mode, -- then we need to make sure that the binder program is compiled with -- the same restriction, so that no exception tables are generated. if Cumulative_Restrictions.Set (No_Exception_Handlers) then WBI ("pragma Restrictions (No_Exception_Handlers);"); end if; -- Same processing for Restrictions (No_Exception_Propagation) if Cumulative_Restrictions.Set (No_Exception_Propagation) then WBI ("pragma Restrictions (No_Exception_Propagation);"); end if; -- Same processing for pragma No_Run_Time if No_Run_Time_Mode then WBI ("pragma No_Run_Time;"); end if; -- Generate with of System so we can reference System.Address WBI ("with System;"); -- Generate with of System.Initialize_Scalars if active if Initialize_Scalars_Used then WBI ("with System.Scalar_Values;"); end if; -- Generate with of System.Secondary_Stack if active if Sec_Stack_Used and then Default_Sec_Stack_Size /= -1 then WBI ("with System.Secondary_Stack;"); end if; Resolve_Binder_Options; if VM_Target /= No_VM then if not Suppress_Standard_Library_On_Target then -- Usually, adafinal is called using a pragma Import C. Since -- Import C doesn't have the same semantics for JGNAT, we use -- standard Ada. WBI ("with System.Standard_Library;"); end if; end if; WBI ("package " & Ada_Main & " is"); WBI (" pragma Warnings (Off);"); -- Main program case if Bind_Main_Program then if VM_Target = No_VM then -- Generate argc/argv stuff unless suppressed if Command_Line_Args_On_Target or not Configurable_Run_Time_On_Target then WBI (""); WBI (" gnat_argc : Integer;"); WBI (" gnat_argv : System.Address;"); WBI (" gnat_envp : System.Address;"); -- If the standard library is not suppressed, these variables -- are in the runtime data area for easy access from the -- runtime. if not Suppress_Standard_Library_On_Target then WBI (""); WBI (" pragma Import (C, gnat_argc);"); WBI (" pragma Import (C, gnat_argv);"); WBI (" pragma Import (C, gnat_envp);"); end if; end if; -- Define exit status. Again in normal mode, this is in the -- run-time library, and is initialized there, but in the -- configurable runtime case, the variable is declared and -- initialized in this file. WBI (""); if Configurable_Run_Time_Mode then if Exit_Status_Supported_On_Target then WBI (" gnat_exit_status : Integer := 0;"); end if; else WBI (" gnat_exit_status : Integer;"); WBI (" pragma Import (C, gnat_exit_status);"); end if; end if; -- Generate the GNAT_Version and Ada_Main_Program_Name info only for -- the main program. Otherwise, it can lead under some circumstances -- to a symbol duplication during the link (for instance when a C -- program uses two Ada libraries). Also zero terminate the string -- so that its end can be found reliably at run time. WBI (""); WBI (" GNAT_Version : constant String :="); WBI (" ""GNAT Version: " & Gnat_Version_String & """ & ASCII.NUL;"); WBI (" pragma Export (C, GNAT_Version, ""__gnat_version"");"); WBI (""); Set_String (" Ada_Main_Program_Name : constant String := """); Get_Name_String (Units.Table (First_Unit_Entry).Uname); if VM_Target = No_VM then Set_Main_Program_Name; Set_String (""" & ASCII.NUL;"); else Set_String (Name_Buffer (1 .. Name_Len - 2) & """;"); end if; Write_Statement_Buffer; WBI (" pragma Export (C, Ada_Main_Program_Name, " & """__gnat_ada_main_program_name"");"); end if; if not Cumulative_Restrictions.Set (No_Finalization) then WBI (""); WBI (" procedure " & Ada_Final_Name.all & ";"); WBI (" pragma Export (C, " & Ada_Final_Name.all & ", """ & Ada_Final_Name.all & """);"); end if; WBI (""); WBI (" procedure " & Ada_Init_Name.all & ";"); WBI (" pragma Export (C, " & Ada_Init_Name.all & ", """ & Ada_Init_Name.all & """);"); -- If -a has been specified use pragma Linker_Constructor for the init -- procedure. No need to use a similar pragma for the final procedure as -- global finalization will occur when the executable finishes execution -- and for plugins (shared stand-alone libraries that can be -- "unloaded"), finalization should not occur automatically, otherwise -- the main executable may not continue to work properly. if Use_Pragma_Linker_Constructor then WBI (" pragma Linker_Constructor (" & Ada_Init_Name.all & ");"); end if; if Bind_Main_Program and then VM_Target = No_VM then -- If we have the standard library, then Break_Start is defined -- there, but when the standard library is suppressed, Break_Start -- is defined here. WBI (""); WBI (" procedure Break_Start;"); if Suppress_Standard_Library_On_Target then WBI (" pragma Export (C, Break_Start, ""__gnat_break_start"");"); else WBI (" pragma Import (C, Break_Start, ""__gnat_break_start"");"); end if; WBI (""); if Exit_Status_Supported_On_Target then Set_String (" function "); else Set_String (" procedure "); end if; Set_String (Get_Main_Name); -- Generate argument list if present if Command_Line_Args_On_Target then Write_Statement_Buffer; WBI (" (argc : Integer;"); WBI (" argv : System.Address;"); Set_String (" envp : System.Address)"); if Exit_Status_Supported_On_Target then Write_Statement_Buffer; WBI (" return Integer;"); else Write_Statement_Buffer (";"); end if; else if Exit_Status_Supported_On_Target then Write_Statement_Buffer (" return Integer;"); else Write_Statement_Buffer (";"); end if; end if; WBI (" pragma Export (C, " & Get_Main_Name & ", """ & Get_Main_Name & """);"); end if; Gen_Versions_Ada; Gen_Elab_Order_Ada; -- Spec is complete WBI (""); WBI ("end " & Ada_Main & ";"); Close_Binder_Output; -- Prepare to write body Create_Binder_Output (Filename, 'b', Bfileb); -- We always compile the binder file in Ada 95 mode so that we properly -- handle use of Ada 2005 keywords as identifiers in Ada 95 mode. None -- of the Ada 2005 constructs are needed by the binder file. WBI ("pragma Ada_95;"); -- Output Source_File_Name pragmas which look like -- pragma Source_File_Name (Ada_Main, Spec_File_Name => "sss"); -- pragma Source_File_Name (Ada_Main, Body_File_Name => "bbb"); -- where sss/bbb are the spec/body file names respectively Get_Name_String (Bfiles); Name_Buffer (Name_Len + 1 .. Name_Len + 3) := """);"; WBI ("pragma Source_File_Name (" & Ada_Main & ", Spec_File_Name => """ & Name_Buffer (1 .. Name_Len + 3)); Get_Name_String (Bfileb); Name_Buffer (Name_Len + 1 .. Name_Len + 3) := """);"; WBI ("pragma Source_File_Name (" & Ada_Main & ", Body_File_Name => """ & Name_Buffer (1 .. Name_Len + 3)); -- Generate with of System.Restrictions to initialize -- Run_Time_Restrictions. if System_Restrictions_Used and not Suppress_Standard_Library_On_Target then WBI (""); WBI ("with System.Restrictions;"); end if; WBI (""); WBI ("package body " & Ada_Main & " is"); WBI (" pragma Warnings (Off);"); -- Import the finalization procedure only if finalization active if not Cumulative_Restrictions.Set (No_Finalization) then -- In the Java case, pragma Import C cannot be used, so the -- standard Ada constructs will be used instead. if VM_Target = No_VM then WBI (""); WBI (" procedure Do_Finalize;"); WBI (" pragma Import (C, Do_Finalize, " & """system__standard_library__adafinal"");"); WBI (""); end if; end if; if not Suppress_Standard_Library_On_Target then -- Generate Priority_Specific_Dispatching pragma string Set_String (" Local_Priority_Specific_Dispatching : constant String := """); for J in 0 .. PSD_Pragma_Settings.Last loop Set_Char (PSD_Pragma_Settings.Table (J)); end loop; Set_String (""";"); Write_Statement_Buffer; -- Generate Interrupt_State pragma string Set_String (" Local_Interrupt_States : constant String := """); for J in 0 .. IS_Pragma_Settings.Last loop Set_Char (IS_Pragma_Settings.Table (J)); end loop; Set_String (""";"); Write_Statement_Buffer; WBI (""); end if; Gen_Adainit_Ada; -- Generate the adafinal routine unless there is no finalization to do if not Cumulative_Restrictions.Set (No_Finalization) then Gen_Adafinal_Ada; end if; if Bind_Main_Program and then VM_Target = No_VM then -- When suppressing the standard library then generate dummy body -- for Break_Start if Suppress_Standard_Library_On_Target then WBI (""); WBI (" procedure Break_Start is"); WBI (" begin"); WBI (" null;"); WBI (" end;"); end if; Gen_Main_Ada; end if; -- Output object file list and the Ada body is complete Gen_Object_Files_Options; WBI (""); WBI ("end " & Ada_Main & ";"); Close_Binder_Output; end Gen_Output_File_Ada; ----------------------- -- Gen_Output_File_C -- ----------------------- procedure Gen_Output_File_C (Filename : String) is Bfile : Name_Id; pragma Warnings (Off, Bfile); -- Name of generated bind file (not referenced) begin Create_Binder_Output (Filename, 'c', Bfile); Resolve_Binder_Options; WBI ("extern void " & Ada_Final_Name.all & " (void);"); -- If -a has been specified use __attribute__((constructor)) for the -- init procedure. No need to use a similar featute for the final -- procedure as global finalization will occur when the executable -- finishes execution and for plugins (shared stand-alone libraries that -- can be "unloaded"), finalization should not occur automatically, -- otherwise the main executable may not continue to work properly. if Use_Pragma_Linker_Constructor then WBI ("extern void " & Ada_Init_Name.all & " (void) __attribute__((constructor));"); else WBI ("extern void " & Ada_Init_Name.all & " (void);"); end if; WBI ("extern void system__standard_library__adafinal (void);"); if not No_Main_Subprogram then Set_String ("extern "); if Exit_Status_Supported_On_Target then Set_String ("int"); else Set_String ("void"); end if; Set_String (" main "); if Command_Line_Args_On_Target then Write_Statement_Buffer ("(int, char **, char **);"); else Write_Statement_Buffer ("(void);"); end if; if OpenVMS_On_Target then WBI ("extern void decc$__posix_exit (int);"); else WBI ("extern void exit (int);"); end if; WBI ("extern void __gnat_break_start (void);"); Set_String ("extern "); if ALIs.Table (ALIs.First).Main_Program = Proc then Set_String ("void "); else Set_String ("int "); end if; Get_Name_String (Units.Table (First_Unit_Entry).Uname); Set_Main_Program_Name; Set_String (" (void);"); Write_Statement_Buffer; end if; if not Suppress_Standard_Library_On_Target then WBI ("extern void __gnat_initialize (void *);"); WBI ("extern void __gnat_finalize (void);"); WBI ("extern void __gnat_install_handler (void);"); end if; if Dynamic_Stack_Measurement then WBI (""); WBI ("extern void __gnat_stack_usage_output_results (void);"); WBI ("extern void __gnat_stack_usage_initialize (int size);"); end if; -- Initialize stack limit for the environment task if the stack -- check method is stack limit and stack check is enabled. if Stack_Check_Limits_On_Target and then (Stack_Check_Default_On_Target or Stack_Check_Switch_Set) then WBI (""); WBI ("extern void __gnat_initialize_stack_limit (void);"); end if; WBI (""); Gen_Elab_Defs_C; -- Imported variables used only when we have a runtime if not Suppress_Standard_Library_On_Target then -- Track elaboration/finalization phase WBI ("extern int __gnat_handler_installed;"); WBI (""); -- Track feature enable/disable on VMS if OpenVMS_On_Target then WBI ("extern int __gnat_features_set;"); WBI (""); end if; end if; -- Write argv/argc exit status stuff if main program case if Bind_Main_Program then -- First deal with argc/argv/envp. In the normal case they -- are in the run-time library. if not Configurable_Run_Time_On_Target then WBI ("extern int gnat_argc;"); WBI ("extern char **gnat_argv;"); WBI ("extern char **gnat_envp;"); -- If configurable run time and no command line args, then the -- generation of these variables is entirely suppressed. elsif not Command_Line_Args_On_Target then null; -- Otherwise, in the configurable run-time case they are right in -- the binder file. else WBI ("int gnat_argc;"); WBI ("char **gnat_argv;"); WBI ("char **gnat_envp;"); end if; -- Similarly deal with exit status if not Configurable_Run_Time_On_Target then WBI ("extern int gnat_exit_status;"); -- If configurable run time and no exit status on target, then -- the generation of this variables is entirely suppressed. elsif not Exit_Status_Supported_On_Target then null; -- Otherwise, in the configurable run-time case this variable is -- right in the binder file, and initialized to zero there. else WBI ("int gnat_exit_status = 0;"); end if; WBI (""); end if; -- When suppressing the standard library, the __gnat_break_start -- routine (for the debugger to get initial control) is defined in -- this file. if Suppress_Standard_Library_On_Target then WBI (""); WBI ("void __gnat_break_start (void) {}"); end if; -- Generate the __gnat_version and __gnat_ada_main_program_name info -- only for the main program. Otherwise, it can lead under some -- circumstances to a symbol duplication during the link (for instance -- when a C program uses 2 Ada libraries) if Bind_Main_Program then WBI (""); WBI ("char __gnat_version[] = ""GNAT Version: " & Gnat_Version_String & """;"); Set_String ("char __gnat_ada_main_program_name[] = """); Get_Name_String (Units.Table (First_Unit_Entry).Uname); Set_Main_Program_Name; Set_String (""";"); Write_Statement_Buffer; end if; -- Generate the adafinal routine. In no runtime mode, this is -- not needed, since there is no finalization to do. if not Cumulative_Restrictions.Set (No_Finalization) then Gen_Adafinal_C; end if; Gen_Adainit_C; -- Main is only present for Ada main case if Bind_Main_Program then Gen_Main_C; end if; -- Generate versions, elaboration order, list of object files Gen_Versions_C; Gen_Elab_Order_C; Gen_Object_Files_Options; -- C binder output is complete Close_Binder_Output; end Gen_Output_File_C; -------------------------- -- Gen_Restrictions_Ada -- -------------------------- procedure Gen_Restrictions_Ada is Count : Integer; begin if Suppress_Standard_Library_On_Target or not System_Restrictions_Used then return; end if; WBI (" System.Restrictions.Run_Time_Restrictions :="); WBI (" (Set =>"); Set_String (" ("); Count := 0; for J in Cumulative_Restrictions.Set'First .. Restriction_Id'Pred (Cumulative_Restrictions.Set'Last) loop Set_Boolean (Cumulative_Restrictions.Set (J)); Set_String (", "); Count := Count + 1; if Count = 8 then Write_Statement_Buffer; Set_String (" "); Count := 0; end if; end loop; Set_Boolean (Cumulative_Restrictions.Set (Cumulative_Restrictions.Set'Last)); Set_String ("),"); Write_Statement_Buffer; Set_String (" Value => ("); for J in Cumulative_Restrictions.Value'First .. Restriction_Id'Pred (Cumulative_Restrictions.Value'Last) loop Set_Int (Int (Cumulative_Restrictions.Value (J))); Set_String (", "); end loop; Set_Int (Int (Cumulative_Restrictions.Value (Cumulative_Restrictions.Value'Last))); Set_String ("),"); Write_Statement_Buffer; WBI (" Violated =>"); Set_String (" ("); Count := 0; for J in Cumulative_Restrictions.Violated'First .. Restriction_Id'Pred (Cumulative_Restrictions.Violated'Last) loop Set_Boolean (Cumulative_Restrictions.Violated (J)); Set_String (", "); Count := Count + 1; if Count = 8 then Write_Statement_Buffer; Set_String (" "); Count := 0; end if; end loop; Set_Boolean (Cumulative_Restrictions.Violated (Cumulative_Restrictions.Violated'Last)); Set_String ("),"); Write_Statement_Buffer; Set_String (" Count => ("); for J in Cumulative_Restrictions.Count'First .. Restriction_Id'Pred (Cumulative_Restrictions.Count'Last) loop Set_Int (Int (Cumulative_Restrictions.Count (J))); Set_String (", "); end loop; Set_Int (Int (Cumulative_Restrictions.Count (Cumulative_Restrictions.Count'Last))); Set_String ("),"); Write_Statement_Buffer; Set_String (" Unknown => ("); for J in Cumulative_Restrictions.Unknown'First .. Restriction_Id'Pred (Cumulative_Restrictions.Unknown'Last) loop Set_Boolean (Cumulative_Restrictions.Unknown (J)); Set_String (", "); end loop; Set_Boolean (Cumulative_Restrictions.Unknown (Cumulative_Restrictions.Unknown'Last)); Set_String ("));"); Write_Statement_Buffer; end Gen_Restrictions_Ada; ------------------------ -- Gen_Restrictions_C -- ------------------------ procedure Gen_Restrictions_C is begin if Suppress_Standard_Library_On_Target or not System_Restrictions_Used then return; end if; WBI (" typedef struct {"); Set_String (" char set ["); Set_Int (Cumulative_Restrictions.Set'Length); Set_String ("];"); Write_Statement_Buffer; Set_String (" int value ["); Set_Int (Cumulative_Restrictions.Value'Length); Set_String ("];"); Write_Statement_Buffer; Set_String (" char violated ["); Set_Int (Cumulative_Restrictions.Violated'Length); Set_String ("];"); Write_Statement_Buffer; Set_String (" int count ["); Set_Int (Cumulative_Restrictions.Count'Length); Set_String ("];"); Write_Statement_Buffer; Set_String (" char unknown ["); Set_Int (Cumulative_Restrictions.Unknown'Length); Set_String ("];"); Write_Statement_Buffer; WBI (" } restrictions;"); WBI (" extern restrictions " & "system__restrictions__run_time_restrictions;"); WBI (" restrictions r = {"); Set_String (" {"); for J in Cumulative_Restrictions.Set'First .. Restriction_Id'Pred (Cumulative_Restrictions.Set'Last) loop Set_Int (Boolean'Pos (Cumulative_Restrictions.Set (J))); Set_String (", "); end loop; Set_Int (Boolean'Pos (Cumulative_Restrictions.Set (Cumulative_Restrictions.Set'Last))); Set_String ("},"); Write_Statement_Buffer; Set_String (" {"); for J in Cumulative_Restrictions.Value'First .. Restriction_Id'Pred (Cumulative_Restrictions.Value'Last) loop Set_Int (Int (Cumulative_Restrictions.Value (J))); Set_String (", "); end loop; Set_Int (Int (Cumulative_Restrictions.Value (Cumulative_Restrictions.Value'Last))); Set_String ("},"); Write_Statement_Buffer; Set_String (" {"); for J in Cumulative_Restrictions.Violated'First .. Restriction_Id'Pred (Cumulative_Restrictions.Violated'Last) loop Set_Int (Boolean'Pos (Cumulative_Restrictions.Violated (J))); Set_String (", "); end loop; Set_Int (Boolean'Pos (Cumulative_Restrictions.Violated (Cumulative_Restrictions.Violated'Last))); Set_String ("},"); Write_Statement_Buffer; Set_String (" {"); for J in Cumulative_Restrictions.Count'First .. Restriction_Id'Pred (Cumulative_Restrictions.Count'Last) loop Set_Int (Int (Cumulative_Restrictions.Count (J))); Set_String (", "); end loop; Set_Int (Int (Cumulative_Restrictions.Count (Cumulative_Restrictions.Count'Last))); Set_String ("},"); Write_Statement_Buffer; Set_String (" {"); for J in Cumulative_Restrictions.Unknown'First .. Restriction_Id'Pred (Cumulative_Restrictions.Unknown'Last) loop Set_Int (Boolean'Pos (Cumulative_Restrictions.Unknown (J))); Set_String (", "); end loop; Set_Int (Boolean'Pos (Cumulative_Restrictions.Unknown (Cumulative_Restrictions.Unknown'Last))); Set_String ("}};"); Write_Statement_Buffer; WBI (" system__restrictions__run_time_restrictions = r;"); end Gen_Restrictions_C; ---------------------- -- Gen_Versions_Ada -- ---------------------- -- This routine generates two sets of lines. The first set has the form: -- unnnnn : constant Integer := 16#hhhhhhhh#; -- The second set has the form -- pragma Export (C, unnnnn, unam); -- for each unit, where unam is the unit name suffixed by either B or -- S for body or spec, with dots replaced by double underscores, and -- hhhhhhhh is the version number, and nnnnn is a 5-digits serial number. procedure Gen_Versions_Ada is Ubuf : String (1 .. 6) := "u00000"; procedure Increment_Ubuf; -- Little procedure to increment the serial number procedure Increment_Ubuf is begin for J in reverse Ubuf'Range loop Ubuf (J) := Character'Succ (Ubuf (J)); exit when Ubuf (J) <= '9'; Ubuf (J) := '0'; end loop; end Increment_Ubuf; -- Start of processing for Gen_Versions_Ada begin if Bind_For_Library then -- When building libraries, the version number of each unit can -- not be computed, since the binder does not know the full list -- of units. Therefore, the 'Version and 'Body_Version -- attributes cannot supported in this case. return; end if; WBI (""); WBI (" type Version_32 is mod 2 ** 32;"); for U in Units.First .. Units.Last loop Increment_Ubuf; WBI (" " & Ubuf & " : constant Version_32 := 16#" & Units.Table (U).Version & "#;"); end loop; WBI (""); Ubuf := "u00000"; for U in Units.First .. Units.Last loop Increment_Ubuf; Set_String (" pragma Export (C, "); Set_String (Ubuf); Set_String (", """); Get_Name_String (Units.Table (U).Uname); for K in 1 .. Name_Len loop if Name_Buffer (K) = '.' then Set_Char ('_'); Set_Char ('_'); elsif Name_Buffer (K) = '%' then exit; else Set_Char (Name_Buffer (K)); end if; end loop; if Name_Buffer (Name_Len) = 's' then Set_Char ('S'); else Set_Char ('B'); end if; Set_String (""");"); Write_Statement_Buffer; end loop; end Gen_Versions_Ada; -------------------- -- Gen_Versions_C -- -------------------- -- This routine generates a line of the form: -- unsigned unam = 0xhhhhhhhh; -- for each unit, where unam is the unit name suffixed by either B or -- S for body or spec, with dots replaced by double underscores. procedure Gen_Versions_C is begin if Bind_For_Library then -- When building libraries, the version number of each unit can -- not be computed, since the binder does not know the full list -- of units. Therefore, the 'Version and 'Body_Version -- attributes cannot supported. return; end if; for U in Units.First .. Units.Last loop Set_String ("unsigned "); Get_Name_String (Units.Table (U).Uname); for K in 1 .. Name_Len loop if Name_Buffer (K) = '.' then Set_String ("__"); elsif Name_Buffer (K) = '%' then exit; else Set_Char (Name_Buffer (K)); end if; end loop; if Name_Buffer (Name_Len) = 's' then Set_Char ('S'); else Set_Char ('B'); end if; Set_String (" = 0x"); Set_String (Units.Table (U).Version); Set_Char (';'); Write_Statement_Buffer; end loop; end Gen_Versions_C; ------------------------ -- Get_Main_Unit_Name -- ------------------------ function Get_Main_Unit_Name (S : String) return String is Result : String := S; begin for J in S'Range loop if Result (J) = '.' then Result (J) := '_'; end if; end loop; return Result; end Get_Main_Unit_Name; ----------------------- -- Get_Ada_Main_Name -- ----------------------- function Get_Ada_Main_Name return String is Suffix : constant String := "_00"; Name : String (1 .. Opt.Ada_Main_Name.all'Length + Suffix'Length) := Opt.Ada_Main_Name.all & Suffix; Nlen : Natural; begin -- The main program generated by JGNAT expects a package called -- ada_<main procedure>. if VM_Target /= No_VM then Get_Name_String (Units.Table (First_Unit_Entry).Uname); return "ada_" & Get_Main_Unit_Name (Name_Buffer (1 .. Name_Len - 2)); end if; -- This loop tries the following possibilities in order -- <Ada_Main> -- <Ada_Main>_01 -- <Ada_Main>_02 -- .. -- <Ada_Main>_99 -- where <Ada_Main> is equal to Opt.Ada_Main_Name. By default, -- it is set to 'ada_main'. for J in 0 .. 99 loop if J = 0 then Nlen := Name'Length - Suffix'Length; else Nlen := Name'Length; Name (Name'Last) := Character'Val (J mod 10 + Character'Pos ('0')); Name (Name'Last - 1) := Character'Val (J / 10 + Character'Pos ('0')); end if; for K in ALIs.First .. ALIs.Last loop for L in ALIs.Table (K).First_Unit .. ALIs.Table (K).Last_Unit loop -- Get unit name, removing %b or %e at end Get_Name_String (Units.Table (L).Uname); Name_Len := Name_Len - 2; if Name_Buffer (1 .. Name_Len) = Name (1 .. Nlen) then goto Continue; end if; end loop; end loop; return Name (1 .. Nlen); <<Continue>> null; end loop; -- If we fall through, just use a peculiar unlikely name return ("Qwertyuiop"); end Get_Ada_Main_Name; ------------------- -- Get_Main_Name -- ------------------- function Get_Main_Name return String is begin -- Explicit name given with -M switch if Bind_Alternate_Main_Name then return Alternate_Main_Name.all; -- Case of main program name to be used directly elsif Use_Ada_Main_Program_Name_On_Target then -- Get main program name Get_Name_String (Units.Table (First_Unit_Entry).Uname); -- If this is a child name, return only the name of the child, -- since we can't have dots in a nested program name. Note that -- we do not include the %b at the end of the unit name. for J in reverse 1 .. Name_Len - 2 loop if J = 1 or else Name_Buffer (J - 1) = '.' then return Name_Buffer (J .. Name_Len - 2); end if; end loop; raise Program_Error; -- impossible exit -- Case where "main" is to be used as default else return "main"; end if; end Get_Main_Name; --------------------- -- Get_WC_Encoding -- --------------------- function Get_WC_Encoding return Character is begin -- If encoding method specified by -W switch, then return it if Wide_Character_Encoding_Method_Specified then return WC_Encoding_Letters (Wide_Character_Encoding_Method); -- If no main program, and not specified, set brackets, we really have -- no better choice. If some other encoding is required when there is -- no main, it must be set explicitly using -Wx. -- Note: if the ALI file always passed the wide character encoding -- of every file, then we could use the encoding of the initial -- specified file, but this information is passed only for potential -- main programs. We could fix this sometime, but it is a very minor -- point (wide character default encoding for [Wide_[Wide_]Text_IO -- when there is no main program). elsif No_Main_Subprogram then return 'b'; -- Otherwise if there is a main program, take encoding from it else return ALIs.Table (ALIs.First).WC_Encoding; end if; end Get_WC_Encoding; ---------------------- -- Lt_Linker_Option -- ---------------------- function Lt_Linker_Option (Op1, Op2 : Natural) return Boolean is begin -- Sort internal files last if Linker_Options.Table (Op1).Internal_File /= Linker_Options.Table (Op2).Internal_File then -- Note: following test uses False < True return Linker_Options.Table (Op1).Internal_File < Linker_Options.Table (Op2).Internal_File; -- If both internal or both non-internal, sort according to the -- elaboration position. A unit that is elaborated later should -- come earlier in the linker options list. else return Units.Table (Linker_Options.Table (Op1).Unit).Elab_Position > Units.Table (Linker_Options.Table (Op2).Unit).Elab_Position; end if; end Lt_Linker_Option; ------------------------ -- Move_Linker_Option -- ------------------------ procedure Move_Linker_Option (From : Natural; To : Natural) is begin Linker_Options.Table (To) := Linker_Options.Table (From); end Move_Linker_Option; ---------------------------- -- Resolve_Binder_Options -- ---------------------------- procedure Resolve_Binder_Options is begin for E in Elab_Order.First .. Elab_Order.Last loop Get_Name_String (Units.Table (Elab_Order.Table (E)).Uname); -- This is not a perfect approach, but is the current protocol -- between the run-time and the binder to indicate that tasking -- is used: system.os_interface should always be used by any -- tasking application. if Name_Buffer (1 .. 19) = "system.os_interface" then With_GNARL := True; end if; -- Ditto for declib and the "dec" package if OpenVMS_On_Target and then Name_Buffer (1 .. 5) = "dec%s" then With_DECGNAT := True; end if; end loop; end Resolve_Binder_Options; ----------------- -- Set_Boolean -- ----------------- procedure Set_Boolean (B : Boolean) is True_Str : constant String := "True"; False_Str : constant String := "False"; begin if B then Statement_Buffer (Last + 1 .. Last + True_Str'Length) := True_Str; Last := Last + True_Str'Length; else Statement_Buffer (Last + 1 .. Last + False_Str'Length) := False_Str; Last := Last + False_Str'Length; end if; end Set_Boolean; -------------- -- Set_Char -- -------------- procedure Set_Char (C : Character) is begin Last := Last + 1; Statement_Buffer (Last) := C; end Set_Char; ------------- -- Set_Int -- ------------- procedure Set_Int (N : Int) is begin if N < 0 then Set_String ("-"); Set_Int (-N); else if N > 9 then Set_Int (N / 10); end if; Last := Last + 1; Statement_Buffer (Last) := Character'Val (N mod 10 + Character'Pos ('0')); end if; end Set_Int; ------------------------- -- Set_IS_Pragma_Table -- ------------------------- procedure Set_IS_Pragma_Table is begin for F in ALIs.First .. ALIs.Last loop for K in ALIs.Table (F).First_Interrupt_State .. ALIs.Table (F).Last_Interrupt_State loop declare Inum : constant Int := Interrupt_States.Table (K).Interrupt_Id; Stat : constant Character := Interrupt_States.Table (K).Interrupt_State; begin while IS_Pragma_Settings.Last < Inum loop IS_Pragma_Settings.Append ('n'); end loop; IS_Pragma_Settings.Table (Inum) := Stat; end; end loop; end loop; end Set_IS_Pragma_Table; --------------------------- -- Set_Main_Program_Name -- --------------------------- procedure Set_Main_Program_Name is begin -- Note that name has %b on the end which we ignore -- First we output the initial _ada_ since we know that the main -- program is a library level subprogram. Set_String ("_ada_"); -- Copy name, changing dots to double underscores for J in 1 .. Name_Len - 2 loop if Name_Buffer (J) = '.' then Set_String ("__"); else Set_Char (Name_Buffer (J)); end if; end loop; end Set_Main_Program_Name; --------------------- -- Set_Name_Buffer -- --------------------- procedure Set_Name_Buffer is begin for J in 1 .. Name_Len loop Set_Char (Name_Buffer (J)); end loop; end Set_Name_Buffer; ------------------------- -- Set_PSD_Pragma_Table -- ------------------------- procedure Set_PSD_Pragma_Table is begin for F in ALIs.First .. ALIs.Last loop for K in ALIs.Table (F).First_Specific_Dispatching .. ALIs.Table (F).Last_Specific_Dispatching loop declare DTK : Specific_Dispatching_Record renames Specific_Dispatching.Table (K); begin while PSD_Pragma_Settings.Last < DTK.Last_Priority loop PSD_Pragma_Settings.Append ('F'); end loop; for Prio in DTK.First_Priority .. DTK.Last_Priority loop PSD_Pragma_Settings.Table (Prio) := DTK.Dispatching_Policy; end loop; end; end loop; end loop; end Set_PSD_Pragma_Table; ---------------- -- Set_String -- ---------------- procedure Set_String (S : String) is begin Statement_Buffer (Last + 1 .. Last + S'Length) := S; Last := Last + S'Length; end Set_String; ------------------- -- Set_Unit_Name -- ------------------- procedure Set_Unit_Name is begin for J in 1 .. Name_Len - 2 loop if Name_Buffer (J) /= '.' then Set_Char (Name_Buffer (J)); else Set_String ("__"); end if; end loop; end Set_Unit_Name; --------------------- -- Set_Unit_Number -- --------------------- procedure Set_Unit_Number (U : Unit_Id) is Num_Units : constant Nat := Nat (Units.Last) - Nat (Unit_Id'First); Unum : constant Nat := Nat (U) - Nat (Unit_Id'First); begin if Num_Units >= 10 and then Unum < 10 then Set_Char ('0'); end if; if Num_Units >= 100 and then Unum < 100 then Set_Char ('0'); end if; Set_Int (Unum); end Set_Unit_Number; ---------------------- -- Write_Info_Ada_C -- ---------------------- procedure Write_Info_Ada_C (Ada : String; C : String; Common : String) is begin if Ada_Bind_File then declare S : String (1 .. Ada'Length + Common'Length); begin S (1 .. Ada'Length) := Ada; S (Ada'Length + 1 .. S'Length) := Common; WBI (S); end; else declare S : String (1 .. C'Length + Common'Length); begin S (1 .. C'Length) := C; S (C'Length + 1 .. S'Length) := Common; WBI (S); end; end if; end Write_Info_Ada_C; ---------------------------- -- Write_Statement_Buffer -- ---------------------------- procedure Write_Statement_Buffer is begin WBI (Statement_Buffer (1 .. Last)); Last := 0; end Write_Statement_Buffer; procedure Write_Statement_Buffer (S : String) is begin Set_String (S); Write_Statement_Buffer; end Write_Statement_Buffer; end Bindgen;
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