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Diffstat (limited to 'gcc-4.2.1/gcc/ada/bindgen.adb')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/bindgen.adb | 3061 |
1 files changed, 0 insertions, 3061 deletions
diff --git a/gcc-4.2.1/gcc/ada/bindgen.adb b/gcc-4.2.1/gcc/ada/bindgen.adb deleted file mode 100644 index 0b595fe04..000000000 --- a/gcc-4.2.1/gcc/ada/bindgen.adb +++ /dev/null @@ -1,3061 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT COMPILER COMPONENTS -- --- -- --- B I N D G E N -- --- -- --- B o d y -- --- -- --- Copyright (C) 1992-2006, 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 2, 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 COPYING. If not, write -- --- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- --- Boston, MA 02110-1301, USA. -- --- -- --- 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 GNAT.OS_Lib; use GNAT.OS_Lib; -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 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 - - ---------------------------------- - -- 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 partitions. 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"); - - ---------------------- - -- Run-Time Globals -- - ---------------------- - - -- This section documents the global variables that are passed to the - -- run time from the generated binder file. The call that is made is - -- to the routine Set_Globals, which has the following spec: - - -- procedure Set_Globals - -- (Main_Priority : Integer; - -- Time_Slice_Value : Integer; - -- WC_Encoding : Character; - -- Locking_Policy : Character; - -- Queuing_Policy : Character; - -- Task_Dispatching_Policy : Character; - -- 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); - - -- 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. - - -- 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. - -- the use of zero - - -- 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. - - ----------------------- - -- Local Subprograms -- - ----------------------- - - procedure WBI (Info : String) renames Osint.B.Write_Binder_Info; - -- Convenient shorthand used throughout - - 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_String_1; - -- Generate first restrictions string, which consists of the parameters - -- the first R line, as described in lib-writ.ads, with the restrictions - -- being those for the entire partition (from Cumulative_Restrictions). - - procedure Gen_Restrictions_String_2; - -- Generate first restrictions string, which consists of the parameters - -- the second R line, as described in lib-writ.ads, with the restrictions - -- being those for the entire partition (from Cumulative_Restrictions). - - 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_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 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 Public_Version_Warning; - -- Emit a warning concerning the use of the Public version under - -- certain circumstances. See details in body. - - 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_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_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 Tab_To (N : Natural); - -- If Last is greater than or equal to N, no effect, otherwise store - -- blanks in Statement_Buffer bumping Last, until Last = N. - - 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 - - ---------------------- - -- 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 Hostparm.Java_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); - Set_String (" : Boolean; pragma Import (Ada, "); - 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 '$' separators - -- in the case of a child unit name). - - if Hostparm.Java_VM then - for J in 1 .. Name_Len - 2 loop - if Name_Buffer (J) /= '.' then - Set_Char (Name_Buffer (J)); - else - Set_String ("$"); - end if; - end loop; - - Set_String ("."); - - -- 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. Also no exception tables are needed. - - 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). Global values are - -- assigned using the runtime routine Set_Globals (we have to use - -- the routine call, rather than define the globals in the binder - -- file to deal with cross-library calls in some systems. - - else - -- Generate restrictions string - - Set_String (" Restrictions : constant String :="); - Write_Statement_Buffer; - - Set_String (" """); - Gen_Restrictions_String_1; - Set_String (""" &"); - Write_Statement_Buffer; - - Set_String (" """); - Gen_Restrictions_String_2; - Set_String (""" & ASCII.Nul;"); - Write_Statement_Buffer; - WBI (""); - - -- Generate Interrupt_State pragma string - - Set_String (" Interrupt_States : constant String :="); - Write_Statement_Buffer; - - declare - Col : Natural; - - begin - Set_String (" """); - Col := 9; - - for J in 0 .. IS_Pragma_Settings.Last loop - if Col > 72 then - Set_String (""" &"); - Write_Statement_Buffer; - Set_String (" """); - Col := 9; - - else - Col := Col + 1; - end if; - - Set_Char (IS_Pragma_Settings.Table (J)); - end loop; - end; - - Set_String (""";"); - Write_Statement_Buffer; - WBI (""); - - -- Generate spec for Set_Globals procedure - - WBI (" procedure Set_Globals"); - WBI (" (Main_Priority : Integer;"); - WBI (" Time_Slice_Value : Integer;"); - WBI (" WC_Encoding : Character;"); - WBI (" Locking_Policy : Character;"); - WBI (" Queuing_Policy : Character;"); - WBI (" Task_Dispatching_Policy : Character;"); - - WBI (" Restrictions : System.Address;"); - WBI (" Interrupt_States : System.Address;"); - WBI (" Num_Interrupt_States : Integer;"); - WBI (" Unreserve_All_Interrupts : Integer;"); - WBI (" Exception_Tracebacks : Integer;"); - WBI (" Zero_Cost_Exceptions : Integer;"); - WBI (" Detect_Blocking : Integer;"); - WBI (" Default_Stack_Size : Integer);"); - WBI (" pragma Import (C, Set_Globals, ""__gnat_set_globals"");"); - - -- 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"");"); - WBI (" begin"); - - -- Generate the call to Set_Globals - - WBI (" Set_Globals"); - - 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 (ALIs.Table (ALIs.First).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; - - WBI (" Restrictions => Restrictions'Address,"); - - WBI (" Interrupt_States => " & - "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; - - Set_String (" Exception_Tracebacks => "); - - if Exception_Tracebacks then - Set_String ("1"); - else - Set_String ("0"); - end if; - - Set_String (","); - Write_Statement_Buffer; - - 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; - - -- Generate call to Install_Handler - - WBI (""); - WBI (" if Handler_Installed = 0 then"); - WBI (" Install_Handler;"); - WBI (" 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; - - -- Generate elaboration calls - - WBI (""); - Gen_Elab_Calls_Ada; - - 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 - Set_String (" extern int __gl_main_priority = "); - Set_Int (Main_Priority); - Set_Char (';'); - Write_Statement_Buffer; - end if; - - -- Normal case (standard library not suppressed) - - else - -- Generate definition for restrictions string - - Set_String (" const char *restrictions = """); - Gen_Restrictions_String_1; - Gen_Restrictions_String_2; - Set_String (""";"); - Write_Statement_Buffer; - - -- Generate definition for interrupt states string - - Set_String (" const char *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 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) - - -- Generate call to set the runtime global variables defined in - -- init.c. We define the varables in init.c, rather than in - -- the binder generated file itself to avoid undefined externals - -- when the runtime is linked as a shareable image library. - - -- We call the routine from inside adainit() because this works for - -- both programs with and without binder generated "main" functions. - - WBI (" __gnat_set_globals ("); - - Set_String (" "); - Set_Int (Main_Priority); - Set_Char (','); - Tab_To (24); - Set_String ("/* Main_Priority */"); - Write_Statement_Buffer; - - Set_String (" "); - - 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 (','); - Tab_To (24); - Set_String ("/* Time_Slice_Value */"); - Write_Statement_Buffer; - - Set_String (" '"); - Set_Char (ALIs.Table (ALIs.First).WC_Encoding); - Set_String ("',"); - Tab_To (24); - Set_String ("/* WC_Encoding */"); - Write_Statement_Buffer; - - Set_String (" '"); - Set_Char (Locking_Policy_Specified); - Set_String ("',"); - Tab_To (24); - Set_String ("/* Locking_Policy */"); - Write_Statement_Buffer; - - Set_String (" '"); - Set_Char (Queuing_Policy_Specified); - Set_String ("',"); - Tab_To (24); - Set_String ("/* Queuing_Policy */"); - Write_Statement_Buffer; - - Set_String (" '"); - Set_Char (Task_Dispatching_Policy_Specified); - Set_String ("',"); - Tab_To (24); - Set_String ("/* Tasking_Dispatching_Policy */"); - Write_Statement_Buffer; - - Set_String (" "); - Set_String ("restrictions"); - Set_String (","); - Tab_To (24); - Set_String ("/* Restrictions */"); - Write_Statement_Buffer; - - Set_String (" "); - Set_String ("interrupt_states"); - Set_String (","); - Tab_To (24); - Set_String ("/* Interrupt_States */"); - Write_Statement_Buffer; - - Set_String (" "); - Set_Int (IS_Pragma_Settings.Last + 1); - Set_String (","); - Tab_To (24); - Set_String ("/* Num_Interrupt_States */"); - Write_Statement_Buffer; - - Set_String (" "); - Set_Int (Boolean'Pos (Unreserve_All_Interrupts_Specified)); - Set_String (","); - Tab_To (24); - Set_String ("/* Unreserve_All_Interrupts */"); - Write_Statement_Buffer; - - Set_String (" "); - Set_Int (Boolean'Pos (Exception_Tracebacks)); - Set_String (","); - Tab_To (24); - Set_String ("/* Exception_Tracebacks */"); - Write_Statement_Buffer; - - Set_String (" "); - Set_Int (Boolean'Pos (Zero_Cost_Exceptions_Specified)); - Set_String (","); - Tab_To (24); - Set_String ("/* Zero_Cost_Exceptions */"); - Write_Statement_Buffer; - - Set_String (" "); - - if Detect_Blocking then - Set_Int (1); - else - Set_Int (0); - end if; - - Set_String (","); - Tab_To (24); - Set_String ("/* Detect_Blocking */"); - Write_Statement_Buffer; - - Set_String (" "); - Set_Int (Default_Stack_Size); - Set_String (");"); - Tab_To (24); - Set_String ("/* Default_Stack_Size */"); - Write_Statement_Buffer; - - WBI (""); - - -- Install elaboration time signal handler - - WBI (" if (__gnat_handler_installed == 0)"); - WBI (" {"); - WBI (" __gnat_install_handler ();"); - WBI (" }"); - 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 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; - 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 Hostparm.Java_VM then - WBI (" System.Standard_Library.Adafinal;"); - else - WBI (" Do_Finalize;"); - 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 (" int result;"); - 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. - - 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 - 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 GNAT.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. - - if not 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 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 - Is_Public_Version : constant Boolean := Get_Gnat_Build_Type = Public; - Is_GAP_Version : constant Boolean := Get_Gnat_Build_Type = GAP; - - begin - -- Acquire settings for Interrupt_State pragmas - - Set_IS_Pragma_Table; - - -- Override Ada_Bind_File and Bind_Main_Program for Java since - -- JGNAT only supports Ada code, and the main program is already - -- generated by the compiler. - - if Hostparm.Java_VM then - Ada_Bind_File := True; - Bind_Main_Program := False; - 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; - - -- Get the time stamp of the former bind for public version warning - - if Is_Public_Version or Is_GAP_Version then - Record_Time_From_Last_Bind; - end if; - - -- Generate output file in appropriate language - - if Ada_Bind_File then - Gen_Output_File_Ada (Filename); - else - Gen_Output_File_C (Filename); - end if; - - -- Periodically issue a warning when the public version is used on - -- big projects - - if Is_Public_Version then - Public_Version_Warning; - 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); - - -- 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; - - -- 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 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. - - if Hostparm.Java_VM then - 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 - - -- 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 2 Ada libraries) - - if Bind_Main_Program then - WBI (""); - WBI (" GNAT_Version : constant String :="); - WBI (" ""GNAT Version: " & - Gnat_Version_String & """;"); - 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); - Set_Main_Program_Name; - Set_String (""" & Ascii.NUL;"); - Write_Statement_Buffer; - - WBI - (" pragma Export (C, Ada_Main_Program_Name, " & - """__gnat_ada_main_program_name"");"); - end if; - - WBI (""); - WBI (" procedure " & Ada_Final_Name.all & ";"); - WBI (" pragma Export (C, " & Ada_Final_Name.all & ", """ & - Ada_Final_Name.all & """);"); - - if Use_Pragma_Linker_Constructor then - WBI (" pragma Linker_Destructor (" & 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 Use_Pragma_Linker_Constructor then - WBI (" pragma Linker_Constructor (" & Ada_Init_Name.all & ");"); - end if; - - if Bind_Main_Program 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); - - -- 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)); - - 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 not Hostparm.Java_VM then - WBI (""); - WBI (" procedure Do_Finalize;"); - WBI - (" pragma Import (C, Do_Finalize, " & - """system__standard_library__adafinal"");"); - WBI (""); - end if; - end if; - - Gen_Adainit_Ada; - - Gen_Adafinal_Ada; - - if Bind_Main_Program 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; - -- Name of generated bind file - - begin - Create_Binder_Output (Filename, 'c', Bfile); - - Resolve_Binder_Options; - - WBI ("extern void __gnat_set_globals"); - WBI (" (int, int, char, char, char, char,"); - WBI (" const char *, const char *,"); - WBI (" int, int, int, int, int, int);"); - - if Use_Pragma_Linker_Constructor then - WBI ("extern void " & Ada_Final_Name.all & - " (void) __attribute__((destructor));"); - WBI ("extern void " & Ada_Init_Name.all & - " (void) __attribute__((constructor));"); - - else - WBI ("extern void " & Ada_Final_Name.all & " (void);"); - 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; - - WBI (""); - - Gen_Elab_Defs_C; - - -- Imported variable used to track elaboration/finalization phase. - -- Used only when we have a runtime. - - if not Suppress_Standard_Library_On_Target then - WBI ("extern int __gnat_handler_installed;"); - WBI (""); - 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 - -- are in the run-time library. - - 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_String_1 -- - ------------------------------- - - procedure Gen_Restrictions_String_1 is - begin - for R in All_Boolean_Restrictions loop - if Cumulative_Restrictions.Set (R) then - Set_Char ('r'); - elsif Cumulative_Restrictions.Violated (R) then - Set_Char ('v'); - else - Set_Char ('n'); - end if; - end loop; - end Gen_Restrictions_String_1; - - ------------------------------- - -- Gen_Restrictions_String_2 -- - ------------------------------- - - procedure Gen_Restrictions_String_2 is - begin - for RP in All_Parameter_Restrictions loop - if Cumulative_Restrictions.Set (RP) then - Set_Char ('r'); - Set_Int (Int (Cumulative_Restrictions.Value (RP))); - else - Set_Char ('n'); - end if; - - if not Cumulative_Restrictions.Violated (RP) - or else RP not in Checked_Parameter_Restrictions - then - Set_Char ('n'); - else - Set_Char ('v'); - Set_Int (Int (Cumulative_Restrictions.Count (RP))); - - if Cumulative_Restrictions.Unknown (RP) then - Set_Char ('+'); - end if; - end if; - end loop; - end Gen_Restrictions_String_2; - - ---------------------- - -- 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_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 Hostparm.Java_VM then - -- Get main program name - - Get_Name_String (Units.Table (First_Unit_Entry).Uname); - - -- Remove the %b - - return "ada_" & 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; - - ---------------------- - -- 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; - - ---------------------------- - -- Public_Version_Warning -- - ---------------------------- - - procedure Public_Version_Warning is - Time : constant Int := Time_From_Last_Bind; - - -- Constants to help defining periods - - Hour : constant := 60; - Day : constant := 24 * Hour; - - Never : constant := Integer'Last; - -- Special value indicating no warnings should be given - - -- Constants defining when the warning is issued. Programs with more - -- than Large Units will issue a warning every Period_Large amount of - -- time. Smaller programs will generate a warning every Period_Small - -- amount of time. - - Large : constant := 20; - -- Threshold for considering a program small or large - - Period_Large : constant := Day; - -- Periodic warning time for large programs - - Period_Small : constant := Never; - -- Periodic warning time for small programs - - Nb_Unit : Int; - - begin - -- Compute the number of units that are not GNAT internal files - - Nb_Unit := 0; - for A in ALIs.First .. ALIs.Last loop - if not Is_Internal_File_Name (ALIs.Table (A).Sfile) then - Nb_Unit := Nb_Unit + 1; - end if; - end loop; - - -- Do not emit the message if the last message was emitted in the - -- specified period taking into account the number of units. - - pragma Warnings (Off); - -- Turn off warning of constant condition, which may happen here - -- depending on the choice of constants in the above declarations. - - if Nb_Unit < Large and then Time <= Period_Small then - return; - elsif Time <= Period_Large then - return; - end if; - - pragma Warnings (On); - - Write_Eol; - Write_Str ("IMPORTANT NOTICE:"); - Write_Eol; - Write_Str (" This version of GNAT is unsupported" - & " and comes with absolutely no warranty."); - Write_Eol; - Write_Str (" If you intend to evaluate or use GNAT for building " - & "commercial applications,"); - Write_Eol; - Write_Str (" please consult http://www.gnat.com/ for information"); - Write_Eol; - Write_Str (" on the GNAT Professional product line."); - Write_Eol; - Write_Eol; - end Public_Version_Warning; - - ---------------------------- - -- 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); - - -- The procedure of looking for specific packages and setting - -- flags is somewhat dubious, but there isn't a good alternative - -- at the current time ??? - - if Name_Buffer (1 .. 19) = "system.os_interface" then - With_GNARL := True; - end if; - - 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_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_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; - - ------------ - -- Tab_To -- - ------------ - - procedure Tab_To (N : Natural) is - begin - while Last < N loop - Set_Char (' '); - end loop; - end Tab_To; - - ---------------------- - -- 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; |