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Diffstat (limited to 'gcc-4.8/gcc/ada/bindgen.adb')
| -rw-r--r-- | gcc-4.8/gcc/ada/bindgen.adb | 3163 |
1 files changed, 0 insertions, 3163 deletions
diff --git a/gcc-4.8/gcc/ada/bindgen.adb b/gcc-4.8/gcc/ada/bindgen.adb deleted file mode 100644 index 71741441d..000000000 --- a/gcc-4.8/gcc/ada/bindgen.adb +++ /dev/null @@ -1,3163 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT COMPILER COMPONENTS -- --- -- --- B I N D G E N -- --- -- --- B o d y -- --- -- --- Copyright (C) 1992-2012, 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 := False; - -- Flag indicating whether the unit System.Restrictions is in the closure - -- of the partition. This is set by Resolve_Binder_Options, 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.) - - Dispatching_Domains_Used : Boolean := False; - -- Flag indicating whether multiprocessor dispatching domains are used in - -- the closure of the partition. This is set by Resolve_Binder_Options, and - -- is used to call the routine to disallow the creation of new dispatching - -- domains just before calling the main procedure from the environment - -- task. - - System_Tasking_Restricted_Stages_Used : Boolean := False; - -- Flag indicating whether the unit System.Tasking.Restricted.Stages is in - -- the closure of the partition. This is set by Resolve_Binder_Options, - -- and it used to call a routine to active all the tasks at the end of - -- the elaboration when partition elaboration policy is sequential. - - System_Interrupts_Used : Boolean := False; - -- Flag indicating whether the unit System.Interrups is in the closure of - -- the partition. This is set by Resolve_Binder_Options, and it used to - -- attach interrupt handlers at the end of the elaboration when partition - -- elaboration policy is sequential. - - Lib_Final_Built : Boolean := False; - -- Flag indicating whether the finalize_library rountine has been built - - CodePeer_Wrapper_Name : constant String := "call_main_subprogram"; - -- For CodePeer, introduce a wrapper subprogram which calls the - -- user-defined main subprogram. - - ---------------------------------- - -- 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; - -- Heap_Size : Natural; - -- 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; - -- Detect_Blocking : Integer; - -- Default_Stack_Size : Integer; - -- Leap_Seconds_Support : Integer; - -- Main_CPU : 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. - - -- Heap_Size is the heap to use for memory allocations set by use of a - -- -Hnn parameter for the binder or by the GNAT$NO_MALLOC_64 logical. - -- Valid values are 32 and 64. This switch is only effective on VMS. - - -- 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 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. - - -- 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. - - -- Main_CPU is the processor set by pragma CPU in the main program. If no - -- such pragma is present, the value is -1. - - procedure WBI (Info : String) renames Osint.B.Write_Binder_Info; - -- Convenient shorthand used throughout - - ----------------------- - -- Local Subprograms -- - ----------------------- - - procedure Gen_Adainit; - -- Generates the Adainit procedure - - procedure Gen_Adafinal; - -- Generate the Adafinal procedure - - procedure Gen_CodePeer_Wrapper; - -- For CodePeer, generate wrapper which calls user-defined main subprogram - - procedure Gen_Elab_Calls; - -- Generate sequence of elaboration calls - - procedure Gen_Elab_Externals; - -- Generate sequence of external declarations for elaboration - - procedure Gen_Elab_Order; - -- Generate comments showing elaboration order chosen - - procedure Gen_Finalize_Library; - -- Generate a sequence of finalization calls to elaborated packages - - procedure Gen_Main; - -- Generate procedure main - - 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. - - procedure Gen_Output_File_Ada (Filename : String); - -- Generate Ada output file - - procedure Gen_Restrictions; - -- Generate initialization of restrictions variable - - procedure Gen_Versions; - -- Output series of definitions for unit versions - - function Get_Ada_Main_Name return String; - -- This function is used for the Ada main output 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 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 Has_Finalizer return Boolean; - -- Determine whether the current unit has at least one library-level - -- finalizer. - - 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_String_Replace (S : String); - -- Replaces the last S'Length characters in the Statement_Buffer with - -- the characters of S. The caller must ensure that these characters do - -- in fact exist in the Statement_Buffer. - - type Qualification_Mode is (Dollar_Sign, Dot, Double_Underscores); - - procedure Set_Unit_Name (Mode : Qualification_Mode := Double_Underscores); - -- Given a unit name in the Name_Buffer, copy it into Statement_Buffer, - -- starting at the Last + 1 position and update Last past the value. - -- Depending on parameter Mode, a dot (.) can be qualified into double - -- underscores (__), a dollar sign ($) or left as is. - - 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_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 -- - ------------------ - - procedure Gen_Adafinal is - begin - WBI (" procedure " & Ada_Final_Name.all & " is"); - - if VM_Target = No_VM - and Bind_Main_Program - and not CodePeer_Mode - then - WBI (" procedure s_stalib_adafinal;"); - Set_String (" pragma Import (C, s_stalib_adafinal, "); - Set_String ("""system__standard_library__adafinal"");"); - Write_Statement_Buffer; - end if; - - WBI (" begin"); - - if not CodePeer_Mode then - WBI (" if not Is_Elaborated then"); - WBI (" return;"); - WBI (" end if;"); - WBI (" Is_Elaborated := False;"); - end if; - - -- On non-virtual machine targets, finalization is done differently - -- depending on whether this is the main program or a library. - - if VM_Target = No_VM and then not CodePeer_Mode then - if Bind_Main_Program then - WBI (" s_stalib_adafinal;"); - elsif Lib_Final_Built then - WBI (" finalize_library;"); - else - WBI (" null;"); - end if; - - -- Pragma Import C cannot be used on virtual machine targets, therefore - -- call the runtime finalization routine directly. Similarly in CodePeer - -- mode, where imported functions are ignored. - - else - WBI (" System.Standard_Library.Adafinal;"); - end if; - - WBI (" end " & Ada_Final_Name.all & ";"); - WBI (""); - end Gen_Adafinal; - - ----------------- - -- Gen_Adainit -- - ----------------- - - procedure Gen_Adainit is - Main_Priority : Int renames ALIs.Table (ALIs.First).Main_Priority; - Main_CPU : Int renames ALIs.Table (ALIs.First).Main_CPU; - - begin - -- Declare the access-to-subprogram type used for initialization of - -- of __gnat_finalize_library_objects. This is declared at library - -- level for compatibility with the type used in System.Soft_Links. - -- The import of the soft link which performs library-level object - -- finalization is not needed for VM targets; regular Ada is used in - -- that case. For restricted run-time libraries (ZFP and Ravenscar) - -- tasks are non-terminating, so we do not want finalization. - - if not Suppress_Standard_Library_On_Target - and then VM_Target = No_VM - and then not CodePeer_Mode - and then not Configurable_Run_Time_On_Target - then - WBI (" type No_Param_Proc is access procedure;"); - WBI (""); - end if; - - WBI (" procedure " & Ada_Init_Name.all & " is"); - - -- In CodePeer mode, simplify adainit procedure by only calling - -- elaboration procedures. - - if CodePeer_Mode then - WBI (" begin"); - - -- When compiling for the AAMP small library, where the standard library - -- is no longer suppressed, we still want to exclude the setting of the - -- various imported globals, which aren't present for that library. - - elsif AAMP_On_Target and then Configurable_Run_Time_On_Target then - WBI (" begin"); - WBI (" null;"); - - -- If the standard library is suppressed, then the only global variables - -- that might be needed (by the Ravenscar profile) are the priority and - -- the processor for the environment task. - - elsif 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; - - if Main_CPU /= No_Main_CPU then - WBI (" Main_CPU : Integer;"); - WBI (" pragma Import (C, Main_CPU," & - " ""__gl_main_cpu"");"); - WBI (""); - end if; - - if System_Interrupts_Used - and then Partition_Elaboration_Policy_Specified = 'S' - then - WBI (" procedure Install_Restricted_Handlers_Sequential;"); - WBI (" pragma Import (C," & - "Install_Restricted_Handlers_Sequential," & - " ""__gnat_attach_all_handlers"");"); - WBI (""); - end if; - - if System_Tasking_Restricted_Stages_Used - and then Partition_Elaboration_Policy_Specified = 'S' - then - WBI (" Partition_Elaboration_Policy : Character;"); - WBI (" pragma Import (C, Partition_Elaboration_Policy," & - " ""__gnat_partition_elaboration_policy"");"); - WBI (""); - WBI (" procedure Activate_All_Tasks_Sequential;"); - WBI (" pragma Import (C, Activate_All_Tasks_Sequential," & - " ""__gnat_activate_all_tasks"");"); - end if; - - WBI (" begin"); - - if Main_Priority /= No_Main_Priority then - Set_String (" Main_Priority := "); - Set_Int (Main_Priority); - Set_Char (';'); - Write_Statement_Buffer; - end if; - - if Main_CPU /= No_Main_CPU then - Set_String (" Main_CPU := "); - Set_Int (Main_CPU); - Set_Char (';'); - Write_Statement_Buffer; - end if; - - if System_Tasking_Restricted_Stages_Used - and then Partition_Elaboration_Policy_Specified = 'S' - then - Set_String (" Partition_Elaboration_Policy := '"); - Set_Char (Partition_Elaboration_Policy_Specified); - Set_String ("';"); - Write_Statement_Buffer; - end if; - - if Main_Priority = No_Main_Priority - and then Main_CPU = No_Main_CPU - and then not System_Tasking_Restricted_Stages_Used - then - 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 (" Main_CPU : Integer;"); - WBI (" pragma Import (C, Main_CPU, " & - """__gl_main_cpu"");"); - - 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 (" 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 handlers attach procedure for sequential elaboration policy - - if System_Interrupts_Used - and then Partition_Elaboration_Policy_Specified = 'S' - then - WBI (" procedure Install_Restricted_Handlers_Sequential;"); - WBI (" pragma Import (C," & - "Install_Restricted_Handlers_Sequential," & - " ""__gnat_attach_all_handlers"");"); - WBI (""); - end if; - - -- Import task activation procedure for sequential elaboration - -- policy. - - if System_Tasking_Restricted_Stages_Used - and then Partition_Elaboration_Policy_Specified = 'S' - then - WBI (" Partition_Elaboration_Policy : Character;"); - WBI (" pragma Import (C, Partition_Elaboration_Policy," & - " ""__gnat_partition_elaboration_policy"");"); - WBI (""); - WBI (" procedure Activate_All_Tasks_Sequential;"); - WBI (" pragma Import (C, Activate_All_Tasks_Sequential," & - " ""__gnat_activate_all_tasks"");"); - end if; - - -- The import of the soft link which performs library-level object - -- finalization is not needed for VM targets; regular Ada is used in - -- that case. For restricted run-time libraries (ZFP and Ravenscar) - -- tasks are non-terminating, so we do not want finalization. - - if VM_Target = No_VM and then not Configurable_Run_Time_On_Target then - WBI (""); - WBI (" Finalize_Library_Objects : No_Param_Proc;"); - WBI (" pragma Import (C, Finalize_Library_Objects, " & - """__gnat_finalize_library_objects"");"); - end if; - - -- 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"");"); - - if Opt.Heap_Size /= 0 then - WBI (""); - WBI (" Heap_Size : Integer;"); - WBI (" pragma Import (C, Heap_Size, " & - """__gl_heap_size"");"); - - Write_Statement_Buffer; - end if; - 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; - - -- When dispatching domains are used then we need to signal it - -- before calling the main procedure. - - if Dispatching_Domains_Used then - WBI (" procedure Freeze_Dispatching_Domains;"); - WBI (" pragma Import"); - WBI (" (Ada, Freeze_Dispatching_Domains, " & - """__gnat_freeze_dispatching_domains"");"); - end if; - - WBI (" begin"); - WBI (" if Is_Elaborated then"); - WBI (" return;"); - WBI (" end if;"); - WBI (" Is_Elaborated := True;"); - - 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; - - if System_Tasking_Restricted_Stages_Used - and then Partition_Elaboration_Policy_Specified = 'S' - then - Set_String (" Partition_Elaboration_Policy := '"); - Set_Char (Partition_Elaboration_Policy_Specified); - Set_String ("';"); - Write_Statement_Buffer; - end if; - - Gen_Restrictions; - - 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; - - Set_String (" Main_CPU := "); - Set_Int (Main_CPU); - 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 (" 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 - - -- In .NET, when binding with -z, we don't install the signal handler - -- to let the caller handle the last exception handler. - - if VM_Target /= CLI_Target - or else Bind_Main_Program - then - WBI (""); - WBI (" if Handler_Installed = 0 then"); - WBI (" Install_Handler;"); - WBI (" end if;"); - 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;"); - - -- Features_Set may twiddle the heap size according to a logical - -- name, but the binder switch must override. - - if Opt.Heap_Size /= 0 then - Set_String (" Heap_Size := "); - Set_Int (Opt.Heap_Size); - Set_Char (';'); - Write_Statement_Buffer; - 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; - - -- On CodePeer, the finalization of library objects is not relevant - - if CodePeer_Mode then - null; - - -- On virtual machine targets, or on non-virtual machine ones if this - -- is the main program case, attach finalize_library to the soft link. - -- Do it only when not using a restricted run time, in which case tasks - -- are non-terminating, so we do not want library-level finalization. - - elsif (VM_Target /= No_VM or else Bind_Main_Program) - and then not Configurable_Run_Time_On_Target - and then not Suppress_Standard_Library_On_Target - then - WBI (""); - - if VM_Target = No_VM then - if Lib_Final_Built then - Set_String (" Finalize_Library_Objects := "); - Set_String ("finalize_library'access;"); - else - Set_String (" Finalize_Library_Objects := null;"); - end if; - - -- On VM targets use regular Ada to set the soft link - - else - if Lib_Final_Built then - Set_String - (" System.Soft_Links.Finalize_Library_Objects"); - Set_String (" := finalize_library'access;"); - else - Set_String - (" System.Soft_Links.Finalize_Library_Objects"); - Set_String (" := null;"); - end if; - end if; - - Write_Statement_Buffer; - end if; - - -- Generate elaboration calls - - if not CodePeer_Mode then - WBI (""); - end if; - - Gen_Elab_Calls; - - -- From this point, no new dispatching domain can be created. - - if Dispatching_Domains_Used then - WBI (" Freeze_Dispatching_Domains;"); - end if; - - -- Sequential partition elaboration policy - - if Partition_Elaboration_Policy_Specified = 'S' then - if System_Interrupts_Used then - WBI (" Install_Restricted_Handlers_Sequential;"); - end if; - - if System_Tasking_Restricted_Stages_Used then - WBI (" Activate_All_Tasks_Sequential;"); - end if; - end if; - - -- 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 & ";"); - WBI (""); - end Gen_Adainit; - - -------------------------- - -- Gen_CodePeer_Wrapper -- - -------------------------- - - procedure Gen_CodePeer_Wrapper is - Callee_Name : constant String := "Ada_Main_Program"; - - begin - if ALIs.Table (ALIs.First).Main_Program = Proc then - WBI (" procedure " & CodePeer_Wrapper_Name & " is "); - WBI (" begin"); - WBI (" " & Callee_Name & ";"); - - else - WBI (" function " & CodePeer_Wrapper_Name & " return Integer is"); - WBI (" begin"); - WBI (" return " & Callee_Name & ";"); - end if; - - WBI (" end " & CodePeer_Wrapper_Name & ";"); - WBI (""); - end Gen_CodePeer_Wrapper; - - -------------------- - -- Gen_Elab_Calls -- - -------------------- - - procedure Gen_Elab_Calls is - Check_Elab_Flag : Boolean; - - 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; - - -- Likewise if this is an interface to a stand alone library - - elsif U.SAL_Interface then - null; - - -- Case of no elaboration code - - -- In CodePeer mode, we special case subprogram bodies which - -- are handled in the 'else' part below, and lead to a call to - -- <subp>'Elab_Subp_Body. - - elsif U.No_Elab - and then (not CodePeer_Mode - or else U.Utype = Is_Spec - or else U.Utype = Is_Spec_Only - or else U.Unit_Kind /= 's') - then - - -- In the case of a body with a separate spec, where the - -- separate spec has an elaboration entity defined, this is - -- where we increment the elaboration entity. - - if U.Utype = Is_Body - and then Units.Table (Unum_Spec).Set_Elab_Entity - and then not CodePeer_Mode - then - Set_String (" E"); - Set_Unit_Number (Unum_Spec); - - -- The AAMP target has no notion of shared libraries, and - -- there's no possibility of reelaboration, so we treat the - -- the elaboration var as a flag instead of a counter and - -- simply set it. - - if AAMP_On_Target then - Set_String (" := 1;"); - - -- Otherwise (normal case), increment elaboration counter - - else - Set_String (" := E"); - Set_Unit_Number (Unum_Spec); - Set_String (" + 1;"); - end if; - - Write_Statement_Buffer; - - -- In the special case where the target is AAMP and the unit is - -- a spec with a body, the elaboration entity is initialized - -- here. This is done because it's the only way to accomplish - -- initialization of such entities, as there is no mechanism - -- provided for initializing global variables at load time on - -- AAMP. - - elsif AAMP_On_Target - and then U.Utype = Is_Spec - and then Units.Table (Unum_Spec).Set_Elab_Entity - then - Set_String (" E"); - Set_Unit_Number (Unum_Spec); - Set_String (" := 0;"); - 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 then - -- uname'elab_[spec|body]; - -- end if; - -- uname_E := uname_E + 1; - - -- Otherwise, elaboration routines are called unconditionally: - - -- uname'elab_[spec|body]; - -- uname_E := uname_E + 1; - - -- The uname_E increment is skipped if this is a separate spec, - -- since it will be done when we process the body. - - -- In CodePeer mode, we do not generate any reference to xxx_E - -- variables, only calls to 'Elab* subprograms. - - else - -- In the special case where the target is AAMP and the unit is - -- a spec with a body, the elaboration entity is initialized - -- here. This is done because it's the only way to accomplish - -- initialization of such entities, as there is no mechanism - -- provided for initializing global variables at load time on - -- AAMP. - - if AAMP_On_Target - and then U.Utype = Is_Spec - and then Units.Table (Unum_Spec).Set_Elab_Entity - then - Set_String (" E"); - Set_Unit_Number (Unum_Spec); - Set_String (" := 0;"); - Write_Statement_Buffer; - end if; - - Check_Elab_Flag := - not CodePeer_Mode - and then (Force_Checking_Of_Elaboration_Flags - or Interface_Library_Unit - or not Bind_Main_Program); - - if Check_Elab_Flag then - Set_String (" if E"); - Set_Unit_Number (Unum_Spec); - Set_String (" = 0 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"; - Name_Len := Name_Len + 8; - - -- Special case in CodePeer mode for subprogram bodies - -- which correspond to CodePeer 'Elab_Subp_Body special - -- init procedure. - - elsif U.Unit_Kind = 's' and CodePeer_Mode then - Name_Buffer (Name_Len - 1 .. Name_Len + 13) := - "'elab_subp_body"; - Name_Len := Name_Len + 13; - - else - Name_Buffer (Name_Len - 1 .. Name_Len + 8) := - "'elab_body"; - Name_Len := Name_Len + 8; - end if; - end if; - - Set_Casing (U.Icasing); - Set_Name_Buffer; - Set_Char (';'); - Write_Statement_Buffer; - - if Check_Elab_Flag then - WBI (" end if;"); - end if; - - if U.Utype /= Is_Spec - and then not CodePeer_Mode - then - Set_String (" E"); - Set_Unit_Number (Unum_Spec); - - -- The AAMP target has no notion of shared libraries, and - -- there's no possibility of reelaboration, so we treat the - -- the elaboration var as a flag instead of a counter and - -- simply set it. - - if AAMP_On_Target then - Set_String (" := 1;"); - - -- Otherwise (normal case), increment elaboration counter - - else - Set_String (" := E"); - Set_Unit_Number (Unum_Spec); - Set_String (" + 1;"); - end if; - - Write_Statement_Buffer; - end if; - end if; - end; - end loop; - end Gen_Elab_Calls; - - ------------------------ - -- Gen_Elab_Externals -- - ------------------------ - - procedure Gen_Elab_Externals is - begin - if CodePeer_Mode then - return; - end if; - - 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 (" : Short_Integer; pragma Import (Ada, "); - when CLI_Target => - Set_String (" : Short_Integer; 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; - - WBI (""); - end Gen_Elab_Externals; - - -------------------- - -- Gen_Elab_Order -- - -------------------- - - procedure Gen_Elab_Order is - begin - 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"); - WBI (""); - end Gen_Elab_Order; - - -------------------------- - -- Gen_Finalize_Library -- - -------------------------- - - procedure Gen_Finalize_Library is - Count : Int := 1; - U : Unit_Record; - Uspec : Unit_Record; - Unum : Unit_Id; - - procedure Gen_Header; - -- Generate the header of the finalization routine - - ---------------- - -- Gen_Header -- - ---------------- - - procedure Gen_Header is - begin - WBI (" procedure finalize_library is"); - WBI (" begin"); - end Gen_Header; - - -- Start of processing for Gen_Finalize_Library - - begin - if CodePeer_Mode then - return; - end if; - - for E in reverse Elab_Order.First .. Elab_Order.Last loop - Unum := Elab_Order.Table (E); - U := Units.Table (Unum); - - -- Dealing with package bodies is a little complicated. In such - -- cases we must retrieve the package spec since it contains the - -- spec of the body finalizer. - - if U.Utype = Is_Body then - Unum := Unum + 1; - Uspec := Units.Table (Unum); - else - Uspec := U; - end if; - - Get_Name_String (Uspec.Uname); - - -- We are only interested in non-generic packages - - if U.Unit_Kind /= 'p' or else U.Is_Generic then - null; - - -- That aren't an interface to a stand alone library - - elsif U.SAL_Interface then - null; - - -- Case of no finalization - - elsif not U.Has_Finalizer 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 a finalizer. In that case, this is where we decrement - -- the elaboration entity. - - if U.Utype = Is_Body and then Uspec.Has_Finalizer then - if not Lib_Final_Built then - Gen_Header; - Lib_Final_Built := True; - end if; - - Set_String (" E"); - Set_Unit_Number (Unum); - Set_String (" := E"); - Set_Unit_Number (Unum); - Set_String (" - 1;"); - Write_Statement_Buffer; - end if; - - else - if not Lib_Final_Built then - Gen_Header; - Lib_Final_Built := True; - end if; - - -- Generate: - -- declare - -- procedure F<Count>; - - Set_String (" declare"); - Write_Statement_Buffer; - - Set_String (" procedure F"); - Set_Int (Count); - Set_Char (';'); - Write_Statement_Buffer; - - -- Generate: - -- pragma Import (CIL, F<Count>, - -- "xx.yy_pkg.xx__yy__finalize_[body|spec]"); - -- -- for .NET targets - - -- pragma Import (Java, F<Count>, - -- "xx$yy.xx__yy__finalize_[body|spec]"); - -- -- for JVM targets - - -- pragma Import (Ada, F<Count>, - -- "xx__yy__finalize_[body|spec]"); - -- -- for default targets - - if VM_Target = CLI_Target then - Set_String (" pragma Import (CIL, F"); - elsif VM_Target = JVM_Target then - Set_String (" pragma Import (Java, F"); - else - Set_String (" pragma Import (Ada, F"); - end if; - - Set_Int (Count); - Set_String (", """); - - -- Perform name construction - - -- .NET xx.yy_pkg.xx__yy__finalize - - if VM_Target = CLI_Target then - Set_Unit_Name (Mode => Dot); - Set_String ("_pkg."); - - -- JVM xx$yy.xx__yy__finalize - - elsif VM_Target = JVM_Target then - Set_Unit_Name (Mode => Dollar_Sign); - Set_Char ('.'); - end if; - - -- Default xx__yy__finalize - - Set_Unit_Name; - Set_String ("__finalize_"); - - -- Package spec processing - - if U.Utype = Is_Spec - or else U.Utype = Is_Spec_Only - then - Set_String ("spec"); - - -- Package body processing - - else - Set_String ("body"); - end if; - - Set_String (""");"); - Write_Statement_Buffer; - - -- If binding a library or if there is a non-Ada main subprogram - -- then we generate: - - -- begin - -- uname_E := uname_E - 1; - -- if uname_E = 0 then - -- F<Count>; - -- end if; - -- end; - - -- Otherwise, finalization routines are called unconditionally: - - -- begin - -- uname_E := uname_E - 1; - -- F<Count>; - -- end; - - -- The uname_E decrement is skipped if this is a separate spec, - -- since it will be done when we process the body. - - WBI (" begin"); - - if U.Utype /= Is_Spec then - Set_String (" E"); - Set_Unit_Number (Unum); - Set_String (" := E"); - Set_Unit_Number (Unum); - Set_String (" - 1;"); - Write_Statement_Buffer; - end if; - - if Interface_Library_Unit or not Bind_Main_Program then - Set_String (" if E"); - Set_Unit_Number (Unum); - Set_String (" = 0 then"); - Write_Statement_Buffer; - Set_String (" "); - end if; - - Set_String (" F"); - Set_Int (Count); - Set_Char (';'); - Write_Statement_Buffer; - - if Interface_Library_Unit or not Bind_Main_Program then - WBI (" end if;"); - end if; - - WBI (" end;"); - - Count := Count + 1; - end if; - end loop; - - if Lib_Final_Built then - - -- It is possible that the finalization of a library-level object - -- raised an exception. In that case import the actual exception - -- and the routine necessary to raise it. - - if VM_Target = No_VM then - WBI (" declare"); - WBI (" procedure Reraise_Library_Exception_If_Any;"); - - Set_String (" pragma Import (Ada, "); - Set_String ("Reraise_Library_Exception_If_Any, "); - Set_String ("""__gnat_reraise_library_exception_if_any"");"); - Write_Statement_Buffer; - - WBI (" begin"); - WBI (" Reraise_Library_Exception_If_Any;"); - WBI (" end;"); - - -- VM-specific code, use regular Ada to produce the desired behavior - - else - WBI (" if System.Soft_Links.Library_Exception_Set then"); - - Set_String (" Ada.Exceptions.Reraise_Occurrence ("); - Set_String ("System.Soft_Links.Library_Exception);"); - Write_Statement_Buffer; - - WBI (" end if;"); - end if; - - WBI (" end finalize_library;"); - WBI (""); - end if; - end Gen_Finalize_Library; - - -------------- - -- Gen_Main -- - -------------- - - procedure Gen_Main is - begin - 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). - - if ALIs.Table (ALIs.First).Main_Program = Func then - 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 (""); - - -- For CodePeer, declare a wrapper for the user-defined main program - - if CodePeer_Mode then - Gen_CodePeer_Wrapper; - end if; - end if; - - 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 CodePeer_Mode - and then 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 must 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 - if ALIs.Table (ALIs.First).Main_Program = Func then - WBI (" Result : Integer;"); - WBI (""); - end if; - - if Bind_Main_Program - and not Suppress_Standard_Library_On_Target - and not CodePeer_Mode - 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 and not CodePeer_Mode 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 CodePeer_Mode then - null; - - elsif 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) - and then not CodePeer_Mode - 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 - if CodePeer_Mode then - if ALIs.Table (ALIs.First).Main_Program = Proc then - WBI (" " & CodePeer_Wrapper_Name & ";"); - else - WBI (" Result := " & CodePeer_Wrapper_Name & ";"); - end if; - - elsif 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 - WBI (" adafinal;"); - 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) - and then not CodePeer_Mode - 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;"); - WBI (""); - end Gen_Main; - - ------------------------------ - -- 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; - WBI (" -- " & 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 ("-- BEGIN Object file/option list"); - - if Object_List_Filename /= null then - Set_List_File (Object_List_Filename.all); - end if; - - 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 - WBI (" -- " & Name_Buffer (1 .. Name_Len)); - - if Output_Object_List then - Write_Str (Name_Buffer (1 .. Name_Len)); - Write_Eol; - end if; - end if; - end if; - end loop; - - if Object_List_Filename /= null then - Close_List_File; - end if; - - -- Add a "-Ldir" for each directory in the object path - if VM_Target /= CLI_Target then - 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; - end if; - - -- 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 libraries - -- included by A to come after 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 entries 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???) - - WBI (" -- " & 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; - - WBI ("-- END Object file/option list "); - 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; - - -- For JGNAT the main program is already generated by the compiler - - if VM_Target = JVM_Target then - 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; - - -- Generate output file in appropriate language - - Gen_Output_File_Ada (Filename); - end Gen_Output_File; - - ------------------------- - -- Gen_Output_File_Ada -- - ------------------------- - - procedure Gen_Output_File_Ada (Filename : String) is - - 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. - - Needs_Library_Finalization : constant Boolean := - not Configurable_Run_Time_On_Target and then Has_Finalizer; - -- For restricted run-time libraries (ZFP and Ravenscar) tasks are - -- non-terminating, so we do not want finalization. - - Bfiles : Name_Id; - -- Name of generated bind file (spec) - - Bfileb : Name_Id; - -- Name of generated bind file (body) - - 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 or Ada 2012 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; - - -- Usually, adafinal is called using a pragma Import C. Since Import C - -- doesn't have the same semantics for VMs or CodePeer use standard Ada. - - if not Suppress_Standard_Library_On_Target then - if CodePeer_Mode then - WBI ("with System.Standard_Library;"); - elsif VM_Target /= No_VM then - WBI ("with System.Soft_Links;"); - 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 run-time data area for easy run time access. - - 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 (" """ & Ver_Prefix & - 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; - - 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 and pragma Linker_Destructor for the final procedure. - - if Use_Pragma_Linker_Constructor then - WBI (" pragma Linker_Constructor (" & Ada_Init_Name.all & ");"); - 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 & """);"); - - if Use_Pragma_Linker_Constructor then - WBI (" pragma Linker_Destructor (" & Ada_Final_Name.all & ");"); - end if; - end if; - - if Bind_Main_Program and then VM_Target = No_VM then - - 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; - Gen_Elab_Order; - - -- 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 2005/2012 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; - - if Needs_Library_Finalization then - WBI ("with Ada.Exceptions;"); - end if; - - WBI (""); - WBI ("package body " & Ada_Main & " is"); - WBI (" pragma Warnings (Off);"); - WBI (""); - - -- Generate externals for elaboration entities - - Gen_Elab_Externals; - - if not CodePeer_Mode then - 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; - - -- The B.1 (39) implementation advice says that the adainit/adafinal - -- routines should be idempotent. Generate a flag to ensure that. - -- This is not needed if we are suppressing the standard library - -- since it would never be referenced. - - if not Suppress_Standard_Library_On_Target then - WBI (" Is_Elaborated : Boolean := False;"); - end if; - - WBI (""); - end if; - - -- Generate the adafinal routine unless there is no finalization to do - - if not Cumulative_Restrictions.Set (No_Finalization) then - if Needs_Library_Finalization then - Gen_Finalize_Library; - end if; - - Gen_Adafinal; - end if; - - Gen_Adainit; - - if Bind_Main_Program and then VM_Target = No_VM then - Gen_Main; - 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_Restrictions -- - ---------------------- - - procedure Gen_Restrictions 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'Range loop - Set_Boolean (Cumulative_Restrictions.Set (J)); - Set_String (", "); - Count := Count + 1; - - if J /= Cumulative_Restrictions.Set'Last and then Count = 8 then - Write_Statement_Buffer; - Set_String (" "); - Count := 0; - end if; - end loop; - - Set_String_Replace ("),"); - Write_Statement_Buffer; - Set_String (" Value => ("); - - for J in Cumulative_Restrictions.Value'Range loop - Set_Int (Int (Cumulative_Restrictions.Value (J))); - Set_String (", "); - end loop; - - Set_String_Replace ("),"); - Write_Statement_Buffer; - WBI (" Violated =>"); - Set_String (" ("); - Count := 0; - - for J in Cumulative_Restrictions.Violated'Range loop - Set_Boolean (Cumulative_Restrictions.Violated (J)); - Set_String (", "); - Count := Count + 1; - - if J /= Cumulative_Restrictions.Set'Last and then Count = 8 then - Write_Statement_Buffer; - Set_String (" "); - Count := 0; - end if; - end loop; - - Set_String_Replace ("),"); - Write_Statement_Buffer; - Set_String (" Count => ("); - - for J in Cumulative_Restrictions.Count'Range loop - Set_Int (Int (Cumulative_Restrictions.Count (J))); - Set_String (", "); - end loop; - - Set_String_Replace ("),"); - Write_Statement_Buffer; - Set_String (" Unknown => ("); - - for J in Cumulative_Restrictions.Unknown'Range loop - Set_Boolean (Cumulative_Restrictions.Unknown (J)); - Set_String (", "); - end loop; - - Set_String_Replace ("))"); - Set_String (";"); - Write_Statement_Buffer; - end Gen_Restrictions; - - ------------------ - -- Gen_Versions -- - ------------------ - - -- This routine generates lines such as: - - -- unnnnn : constant Integer := 16#hhhhhhhh#; - -- 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 is - Ubuf : String (1 .. 6) := "u00000"; - - procedure Increment_Ubuf; - -- Little procedure to increment the serial number - - -------------------- - -- Increment_Ubuf -- - -------------------- - - 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 - - begin - WBI (""); - - WBI (" type Version_32 is mod 2 ** 32;"); - for U in Units.First .. Units.Last loop - if not Units.Table (U).SAL_Interface - and then - (not Bind_For_Library or else Units.Table (U).Directly_Scanned) - then - Increment_Ubuf; - WBI (" " & Ubuf & " : constant Version_32 := 16#" & - Units.Table (U).Version & "#;"); - 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 if; - end loop; - end Gen_Versions; - - ------------------------ - -- 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; - - -- For CodePeer, we want reproducible names (independent of other - -- mains that may or may not be present) that don't collide - -- when analyzing multiple mains and which are easily recognizable - -- as "ada_main" names. - if CodePeer_Mode then - Get_Name_String (Units.Table (First_Unit_Entry).Uname); - return "ada_main_for_" & - 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; - - ------------------- - -- Has_Finalizer -- - ------------------- - - function Has_Finalizer return Boolean is - U : Unit_Record; - Unum : Unit_Id; - - begin - for E in reverse Elab_Order.First .. Elab_Order.Last loop - Unum := Elab_Order.Table (E); - U := Units.Table (Unum); - - -- We are only interested in non-generic packages - - if U.Unit_Kind = 'p' - and then U.Has_Finalizer - and then not U.Is_Generic - and then not U.No_Elab - then - return True; - end if; - end loop; - - return False; - end Has_Finalizer; - - ---------------------- - -- 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 - - procedure Check_Package (Var : in out Boolean; Name : String); - -- Set Var to true iff the current identifier in Namet is Name. Do - -- nothing if it doesn't match. This procedure is just an helper to - -- avoid to explicitely deal with length. - - ------------------- - -- Check_Package -- - ------------------- - - procedure Check_Package (Var : in out Boolean; Name : String) is - begin - if Name_Len = Name'Length - and then Name_Buffer (1 .. Name_Len) = Name - then - Var := True; - end if; - end Check_Package; - - -- Start of processing for Check_Package - - 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. - - Check_Package (With_GNARL, "system.os_interface%s"); - - -- Ditto for declib and the "dec" package - - if OpenVMS_On_Target then - Check_Package (With_DECGNAT, "dec%s"); - end if; - - -- Ditto for the use of restricted tasking - - Check_Package - (System_Tasking_Restricted_Stages_Used, - "system.tasking.restricted.stages%s"); - - -- Ditto for the use of interrupts - - Check_Package (System_Interrupts_Used, "system.interrupts%s"); - - -- Ditto for the use of dispatching domains - - Check_Package - (Dispatching_Domains_Used, - "system.multiprocessors.dispatching_domains%s"); - - -- Ditto for the use of restrictions - - Check_Package (System_Restrictions_Used, "system.restrictions%s"); - 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_String_Replace -- - ------------------------ - - procedure Set_String_Replace (S : String) is - begin - Statement_Buffer (Last - S'Length + 1 .. Last) := S; - end Set_String_Replace; - - ------------------- - -- Set_Unit_Name -- - ------------------- - - procedure Set_Unit_Name (Mode : Qualification_Mode := Double_Underscores) is - begin - for J in 1 .. Name_Len - 2 loop - if Name_Buffer (J) = '.' then - if Mode = Double_Underscores then - Set_String ("__"); - elsif Mode = Dot then - Set_Char ('.'); - else - Set_Char ('$'); - end if; - else - Set_Char (Name_Buffer (J)); - 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_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; |