| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- B I N D G E N -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- Copyright (C) 1992-2019, 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 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 Stringt; use Stringt; |
| with Table; |
| with Targparm; use Targparm; |
| with Types; use Types; |
| |
| with System.OS_Lib; |
| with System.WCh_Con; use System.WCh_Con; |
| |
| with GNAT.Heap_Sort_A; use GNAT.Heap_Sort_A; |
| with GNAT.HTable; |
| |
| package body Bindgen is |
| Statement_Buffer : String (1 .. 1000); |
| -- Buffer used for constructing output statements |
| |
| Stm_Last : Natural := 0; |
| -- Stm_Last location in Statement_Buffer currently set |
| |
| 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 |
| |
| Num_Primary_Stacks : Int := 0; |
| -- Number of default-sized primary stacks the binder needs to allocate for |
| -- task objects declared in the program. |
| |
| Num_Sec_Stacks : Int := 0; |
| -- Number of default-sized primary stacks the binder needs to allocate for |
| -- task objects declared in the program. |
| |
| 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_Secondary_Stack_Used : Boolean := False; |
| -- Flag indicating whether the unit System.Secondary_Stack is in the |
| -- closure of the partition. This is set by Resolve_Binder_Options, and |
| -- is used to initialize the package in cases where the run-time brings |
| -- in package but the secondary stack is not used. |
| |
| 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. |
| |
| System_BB_CPU_Primitives_Multiprocessors_Used : Boolean := False; |
| -- Flag indicating whether unit System.BB.CPU_Primitives.Multiprocessors |
| -- is in the closure of the partition. This is set by procedure |
| -- Resolve_Binder_Options, and it is used to call a procedure that starts |
| -- slave processors. |
| |
| System_Version_Control_Used : Boolean := False; |
| -- Flag indicating whether unit System.Version_Control is in the closure. |
| -- This unit is implicitly withed by the compiler when Version or |
| -- Body_Version attributes are used. If the package is not in the closure, |
| -- the version definitions can be removed. |
| |
| Lib_Final_Built : Boolean := False; |
| -- Flag indicating whether the finalize_library rountine has been built |
| |
| Bind_Env_String_Built : Boolean := False; |
| -- Flag indicating whether a bind environment string 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"); |
| |
| ---------------------------- |
| -- Bind_Environment Table -- |
| ---------------------------- |
| |
| subtype Header_Num is Int range 0 .. 36; |
| |
| function Hash (Nam : Name_Id) return Header_Num; |
| |
| package Bind_Environment is new GNAT.HTable.Simple_HTable |
| (Header_Num => Header_Num, |
| Element => Name_Id, |
| No_Element => No_Name, |
| Key => Name_Id, |
| Hash => Hash, |
| Equal => "="); |
| |
| ---------------------- |
| -- Run-Time Globals -- |
| ---------------------- |
| |
| -- This section documents the global variables that are 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; |
| -- Exception_Tracebacks_Symbolic : Integer; |
| -- Detect_Blocking : Integer; |
| -- Default_Stack_Size : Integer; |
| -- Default_Secondary_Stack_Size : System.Parameters.Size_Type; |
| -- Leap_Seconds_Support : Integer; |
| -- Main_CPU : Integer; |
| -- Default_Sized_SS_Pool : System.Address; |
| -- Binder_Sec_Stacks_Count : Natural; |
| |
| -- Main_Priority is the priority value set by pragma Priority in the main |
| -- program. If no such pragma is present, the value is -1. |
| |
| -- Time_Slice_Value is the time slice value set by pragma Time_Slice in the |
| -- main program, or by the use of a -Tnnn parameter for the binder (if both |
| -- are present, the binder value overrides). The value is in milliseconds. |
| -- A value of zero indicates that time slicing should be suppressed. If no |
| -- pragma is present, and no -T switch was used, the value is -1. |
| |
| -- WC_Encoding shows the wide character encoding method used for the main |
| -- program. This is one of the encoding letters defined in |
| -- System.WCh_Con.WC_Encoding_Letters. |
| |
| -- Locking_Policy is a space if no locking policy was specified for the |
| -- partition. If a locking policy was specified, the value is the upper |
| -- case first character of the locking policy name, for example, 'C' for |
| -- Ceiling_Locking. |
| |
| -- Queuing_Policy is a space if no queuing policy was specified for the |
| -- partition. If a queuing policy was specified, the value is the upper |
| -- case first character of the queuing policy name for example, 'F' for |
| -- FIFO_Queuing. |
| |
| -- Task_Dispatching_Policy is a space if no task dispatching policy was |
| -- specified for the partition. If a task dispatching policy was specified, |
| -- the value is the upper case first character of the policy name, e.g. 'F' |
| -- for FIFO_Within_Priorities. |
| |
| -- Priority_Specific_Dispatching is the address of a string used to store |
| -- the task dispatching policy specified for the different priorities in |
| -- the partition. The length of this string is determined by the last |
| -- priority for which such a pragma applies (the string will be a null |
| -- string if no specific dispatching policies were used). If pragma were |
| -- present, the entries apply to the priorities in sequence from the first |
| -- priority. The value stored is the upper case first character of the |
| -- policy name, or 'F' (for FIFO_Within_Priorities) as the default value |
| -- for those priority ranges not specified. |
| |
| -- Num_Specific_Dispatching is 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 -Ea or -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. |
| |
| -- Exception_Tracebacks_Symbolic is set to one if the -Es parameter was |
| -- present in the bind and to zero otherwise. |
| |
| -- 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. |
| |
| -- Default_Secondary_Stack_Size is the default secondary stack size used |
| -- when creating an Ada task with no explicit Secondary_Stack_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. |
| |
| -- Default_Sized_SS_Pool is set to the address of the default-sized |
| -- secondary stacks array generated by the binder. This pool of stacks is |
| -- generated when either the restriction No_Implicit_Heap_Allocations |
| -- or No_Implicit_Task_Allocations is active. |
| |
| -- Binder_Sec_Stacks_Count is the number of generated secondary stacks in |
| -- the Default_Sized_SS_Pool. |
| |
| procedure WBI (Info : String) renames Osint.B.Write_Binder_Info; |
| -- Convenient shorthand used throughout |
| |
| ----------------------- |
| -- Local Subprograms -- |
| ----------------------- |
| |
| procedure Gen_Adainit (Elab_Order : Unit_Id_Array); |
| -- Generates the Adainit procedure |
| |
| procedure Gen_Adafinal; |
| -- Generate the Adafinal procedure |
| |
| procedure Gen_Bind_Env_String; |
| -- Generate the bind environment buffer |
| |
| procedure Gen_CodePeer_Wrapper; |
| -- For CodePeer, generate wrapper which calls user-defined main subprogram |
| |
| procedure Gen_Elab_Calls (Elab_Order : Unit_Id_Array); |
| -- Generate sequence of elaboration calls |
| |
| procedure Gen_Elab_Externals (Elab_Order : Unit_Id_Array); |
| -- Generate sequence of external declarations for elaboration |
| |
| procedure Gen_Elab_Order (Elab_Order : Unit_Id_Array); |
| -- Generate comments showing elaboration order chosen |
| |
| procedure Gen_Finalize_Library (Elab_Order : Unit_Id_Array); |
| -- Generate a sequence of finalization calls to elaborated packages |
| |
| procedure Gen_Main; |
| -- Generate procedure main |
| |
| procedure Gen_Object_Files_Options (Elab_Order : Unit_Id_Array); |
| -- 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; |
| Elab_Order : Unit_Id_Array); |
| -- 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 (Elab_Order : Unit_Id_Array) return Boolean; |
| -- Determine whether the current unit has at least one library-level |
| -- finalizer. |
| |
| function Lt_Linker_Option (Op1 : Natural; 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 (Elab_Order : Unit_Id_Array); |
| -- Set the value of With_GNARL |
| |
| procedure Set_Char (C : Character); |
| -- Set given character in Statement_Buffer at the Stm_Last + 1 position |
| -- and increment Stm_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 Stm_Last + 1 position, and updating Stm_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 Stm_Last + 1 position |
| -- and update Stm_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 Stm_Last + 1, and Stm_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 |
| -- Stm_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. |
| |
| procedure Set_Unit_Name; |
| -- Given a unit name in the Name_Buffer, copy it into Statement_Buffer, |
| -- starting at the Stm_Last + 1 position and update Stm_Last past the |
| -- value. Each dot (.) will be qualified into double underscores (__). |
| |
| 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 Stm_Last, and reset |
| -- Stm_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 Stm_Last, and resets Stm_Last to 0. |
| |
| procedure Write_Bind_Line (S : String); |
| -- Write S (an LF-terminated string) to the binder file (for use with |
| -- Set_Special_Output). |
| |
| ------------------ |
| -- Gen_Adafinal -- |
| ------------------ |
| |
| procedure Gen_Adafinal is |
| begin |
| WBI (" procedure " & Ada_Final_Name.all & " is"); |
| |
| -- Call s_stalib_adafinal to await termination of tasks and so on. We |
| -- want to do this if there is a main program, either in Ada or in some |
| -- other language. (Note that Bind_Main_Program is True for Ada mains, |
| -- but False for mains in other languages.) We do not want to do this if |
| -- we're binding a library. |
| |
| if not Bind_For_Library 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 (""); |
| WBI (" procedure Runtime_Finalize;"); |
| WBI (" pragma Import (C, Runtime_Finalize, " & |
| """__gnat_runtime_finalize"");"); |
| WBI (""); |
| WBI (" begin"); |
| |
| if not CodePeer_Mode then |
| WBI (" if not Is_Elaborated then"); |
| WBI (" return;"); |
| WBI (" end if;"); |
| WBI (" Is_Elaborated := False;"); |
| end if; |
| |
| WBI (" Runtime_Finalize;"); |
| |
| -- By default (real targets), finalization is done differently depending |
| -- on whether this is the main program or a library. |
| |
| if not CodePeer_Mode then |
| if not Bind_For_Library 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 targets, therefore call the |
| -- runtime finalization routine directly 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 (Elab_Order : Unit_Id_Array) 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 does not work for CodePeer, so 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 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"); |
| |
| -- 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"");"); |
| WBI (""); |
| end if; |
| |
| if System_BB_CPU_Primitives_Multiprocessors_Used then |
| WBI (" procedure Start_Slave_CPUs;"); |
| WBI (" pragma Import (C, Start_Slave_CPUs," & |
| " ""__gnat_start_slave_cpus"");"); |
| WBI (""); |
| end if; |
| |
| -- A restricted run-time may attempt to initialize the main task's |
| -- secondary stack even if the stack is not used. Consequently, |
| -- the binder needs to initialize Binder_Sec_Stacks_Count anytime |
| -- System.Secondary_Stack is in the enclosure of the partition. |
| |
| if System_Secondary_Stack_Used then |
| WBI (" Binder_Sec_Stacks_Count : Natural;"); |
| WBI (" pragma Import (Ada, Binder_Sec_Stacks_Count, " & |
| """__gnat_binder_ss_count"");"); |
| WBI (""); |
| end if; |
| |
| if Sec_Stack_Used then |
| WBI (" Default_Secondary_Stack_Size : " & |
| "System.Parameters.Size_Type;"); |
| WBI (" pragma Import (C, Default_Secondary_Stack_Size, " & |
| """__gnat_default_ss_size"");"); |
| |
| WBI (" Default_Sized_SS_Pool : System.Address;"); |
| WBI (" pragma Import (Ada, Default_Sized_SS_Pool, " & |
| """__gnat_default_ss_pool"");"); |
| |
| 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; |
| 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; |
| |
| -- Generate default-sized secondary stack pool and set secondary |
| -- stack globals. |
| |
| if Sec_Stack_Used then |
| |
| -- Elaborate the body of the binder to initialize the default- |
| -- sized secondary stack pool. |
| |
| WBI (""); |
| WBI (" " & Get_Ada_Main_Name & "'Elab_Body;"); |
| |
| -- Generate the default-sized secondary stack pool and set the |
| -- related secondary stack globals. |
| |
| Set_String (" Default_Secondary_Stack_Size := "); |
| |
| if Opt.Default_Sec_Stack_Size /= Opt.No_Stack_Size then |
| Set_Int (Opt.Default_Sec_Stack_Size); |
| else |
| Set_String ("System.Parameters.Runtime_Default_Sec_Stack_Size"); |
| end if; |
| |
| Set_Char (';'); |
| Write_Statement_Buffer; |
| |
| Set_String (" Binder_Sec_Stacks_Count := "); |
| Set_Int (Num_Sec_Stacks); |
| Set_Char (';'); |
| Write_Statement_Buffer; |
| |
| WBI (" Default_Sized_SS_Pool := " & |
| "Sec_Default_Sized_Stacks'Address;"); |
| WBI (""); |
| |
| -- When a restricted run-time initializes the main task's secondary |
| -- stack but the program does not use it, no secondary stack is |
| -- generated. Binder_Sec_Stacks_Count is set to zero so the run-time |
| -- is aware that the lack of pre-allocated secondary stack is |
| -- expected. |
| |
| elsif System_Secondary_Stack_Used then |
| WBI (" Binder_Sec_Stacks_Count := 0;"); |
| 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 or Exception_Tracebacks_Symbolic then |
| WBI (" Exception_Tracebacks : Integer;"); |
| WBI (" pragma Import (C, Exception_Tracebacks, " & |
| """__gl_exception_tracebacks"");"); |
| |
| if Exception_Tracebacks_Symbolic then |
| WBI (" Exception_Tracebacks_Symbolic : Integer;"); |
| WBI (" pragma Import (C, Exception_Tracebacks_Symbolic, " & |
| """__gl_exception_tracebacks_symbolic"");"); |
| end if; |
| 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"");"); |
| |
| if Sec_Stack_Used then |
| WBI (" Default_Secondary_Stack_Size : " & |
| "System.Parameters.Size_Type;"); |
| WBI (" pragma Import (C, Default_Secondary_Stack_Size, " & |
| """__gnat_default_ss_size"");"); |
| end if; |
| |
| WBI (" Leap_Seconds_Support : Integer;"); |
| WBI (" pragma Import (C, Leap_Seconds_Support, " & |
| """__gl_leap_seconds_support"");"); |
| WBI (" Bind_Env_Addr : System.Address;"); |
| WBI (" pragma Import (C, Bind_Env_Addr, " & |
| """__gl_bind_env_addr"");"); |
| |
| -- Import entry point for elaboration time signal handler |
| -- installation, and indication of if it's been called previously. |
| |
| WBI (""); |
| WBI (" procedure Runtime_Initialize " & |
| "(Install_Handler : Integer);"); |
| WBI (" pragma Import (C, Runtime_Initialize, " & |
| """__gnat_runtime_initialize"");"); |
| |
| -- 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; |
| |
| -- Import procedure to start slave cpus for bareboard runtime |
| |
| if System_BB_CPU_Primitives_Multiprocessors_Used then |
| WBI (" procedure Start_Slave_CPUs;"); |
| WBI (" pragma Import (C, Start_Slave_CPUs," & |
| " ""__gnat_start_slave_cpus"");"); |
| end if; |
| |
| -- For restricted run-time libraries (ZFP and Ravenscar) |
| -- tasks are non-terminating, so we do not want finalization. |
| |
| if 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; |
| |
| -- 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; |
| |
| -- 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; |
| |
| -- Secondary stack global variables |
| |
| WBI (" Binder_Sec_Stacks_Count : Natural;"); |
| WBI (" pragma Import (Ada, Binder_Sec_Stacks_Count, " & |
| """__gnat_binder_ss_count"");"); |
| |
| WBI (" Default_Sized_SS_Pool : System.Address;"); |
| WBI (" pragma Import (Ada, Default_Sized_SS_Pool, " & |
| """__gnat_default_ss_pool"");"); |
| |
| WBI (""); |
| |
| -- Start of processing for Adainit |
| |
| WBI (" begin"); |
| WBI (" if Is_Elaborated then"); |
| WBI (" return;"); |
| WBI (" end if;"); |
| WBI (" Is_Elaborated := True;"); |
| |
| -- Call System.Elaboration_Allocators.Mark_Start_Of_Elaboration if |
| -- restriction No_Standard_Allocators_After_Elaboration is active. |
| |
| if Cumulative_Restrictions.Set |
| (No_Standard_Allocators_After_Elaboration) |
| then |
| WBI (" System.Elaboration_Allocators." |
| & "Mark_Start_Of_Elaboration;"); |
| end if; |
| |
| -- Generate assignments to initialize 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 (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 or Exception_Tracebacks_Symbolic then |
| WBI (" Exception_Tracebacks := 1;"); |
| |
| if Exception_Tracebacks_Symbolic then |
| WBI (" Exception_Tracebacks_Symbolic := 1;"); |
| end if; |
| 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; |
| |
| if Bind_Env_String_Built then |
| WBI (" Bind_Env_Addr := Bind_Env'Address;"); |
| end if; |
| |
| WBI (""); |
| |
| -- Generate default-sized secondary stack pool and set secondary |
| -- stack globals. |
| |
| if Sec_Stack_Used then |
| |
| -- Elaborate the body of the binder to initialize the default- |
| -- sized secondary stack pool. |
| |
| WBI (" " & Get_Ada_Main_Name & "'Elab_Body;"); |
| |
| -- Generate the default-sized secondary stack pool and set the |
| -- related secondary stack globals. |
| |
| Set_String (" Default_Secondary_Stack_Size := "); |
| |
| if Opt.Default_Sec_Stack_Size /= Opt.No_Stack_Size then |
| Set_Int (Opt.Default_Sec_Stack_Size); |
| else |
| Set_String ("System.Parameters.Runtime_Default_Sec_Stack_Size"); |
| end if; |
| |
| Set_Char (';'); |
| Write_Statement_Buffer; |
| |
| Set_String (" Binder_Sec_Stacks_Count := "); |
| Set_Int (Num_Sec_Stacks); |
| Set_Char (';'); |
| Write_Statement_Buffer; |
| |
| Set_String (" Default_Sized_SS_Pool := "); |
| |
| if Num_Sec_Stacks > 0 then |
| Set_String ("Sec_Default_Sized_Stacks'Address;"); |
| else |
| Set_String ("System.Null_Address;"); |
| end if; |
| |
| Write_Statement_Buffer; |
| WBI (""); |
| end if; |
| |
| -- Generate call to Runtime_Initialize |
| |
| WBI (" Runtime_Initialize (1);"); |
| 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; |
| |
| -- 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; |
| |
| -- 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 not Bind_For_Library |
| and then not Configurable_Run_Time_On_Target |
| and then not Suppress_Standard_Library_On_Target |
| then |
| WBI (""); |
| |
| if Lib_Final_Built then |
| Set_String (" Finalize_Library_Objects := "); |
| Set_String ("finalize_library'access;"); |
| else |
| Set_String (" Finalize_Library_Objects := null;"); |
| end if; |
| |
| Write_Statement_Buffer; |
| end if; |
| |
| -- Generate elaboration calls |
| |
| if not CodePeer_Mode then |
| WBI (""); |
| end if; |
| |
| Gen_Elab_Calls (Elab_Order); |
| |
| if not CodePeer_Mode then |
| |
| -- Call System.Elaboration_Allocators.Mark_Start_Of_Elaboration if |
| -- restriction No_Standard_Allocators_After_Elaboration is active. |
| |
| if Cumulative_Restrictions.Set |
| (No_Standard_Allocators_After_Elaboration) |
| then |
| WBI |
| (" System.Elaboration_Allocators.Mark_End_Of_Elaboration;"); |
| end if; |
| |
| -- 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; |
| |
| if System_BB_CPU_Primitives_Multiprocessors_Used then |
| WBI (" Start_Slave_CPUs;"); |
| end if; |
| end if; |
| |
| WBI (" end " & Ada_Init_Name.all & ";"); |
| WBI (""); |
| end Gen_Adainit; |
| |
| ------------------------- |
| -- Gen_Bind_Env_String -- |
| ------------------------- |
| |
| procedure Gen_Bind_Env_String is |
| procedure Write_Name_With_Len (Nam : Name_Id); |
| -- Write Nam as a string literal, prefixed with one |
| -- character encoding Nam's length. |
| |
| ------------------------- |
| -- Write_Name_With_Len -- |
| ------------------------- |
| |
| procedure Write_Name_With_Len (Nam : Name_Id) is |
| begin |
| Get_Name_String (Nam); |
| |
| Start_String; |
| Store_String_Char (Character'Val (Name_Len)); |
| Store_String_Chars (Name_Buffer (1 .. Name_Len)); |
| |
| Write_String_Table_Entry (End_String); |
| end Write_Name_With_Len; |
| |
| -- Local variables |
| |
| Amp : Character; |
| KN : Name_Id := No_Name; |
| VN : Name_Id := No_Name; |
| |
| -- Start of processing for Gen_Bind_Env_String |
| |
| begin |
| Bind_Environment.Get_First (KN, VN); |
| |
| if VN = No_Name then |
| return; |
| end if; |
| |
| Set_Special_Output (Write_Bind_Line'Access); |
| |
| WBI (" Bind_Env : aliased constant String :="); |
| Amp := ' '; |
| while VN /= No_Name loop |
| Write_Str (" " & Amp & ' '); |
| Write_Name_With_Len (KN); |
| Write_Str (" & "); |
| Write_Name_With_Len (VN); |
| Write_Eol; |
| |
| Bind_Environment.Get_Next (KN, VN); |
| Amp := '&'; |
| end loop; |
| WBI (" & ASCII.NUL;"); |
| |
| Cancel_Special_Output; |
| |
| Bind_Env_String_Built := True; |
| end Gen_Bind_Env_String; |
| |
| -------------------------- |
| -- 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 (Elab_Order : Unit_Id_Array) is |
| Check_Elab_Flag : Boolean; |
| |
| begin |
| -- Loop through elaboration order entries |
| |
| for E in Elab_Order'Range loop |
| declare |
| Unum : constant Unit_Id := Elab_Order (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 |
| |
| elsif U.No_Elab |
| |
| -- 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. |
| |
| and then (not CodePeer_Mode |
| |
| -- Test for spec |
| |
| 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 one exists. |
| |
| -- Likewise for lone specs with an elaboration entity defined |
| -- despite No_Elaboration_Code, e.g. when requested to preserve |
| -- control flow. |
| |
| if (U.Utype = Is_Body or else U.Utype = Is_Spec_Only) |
| and then Units.Table (Unum_Spec).Set_Elab_Entity |
| and then not CodePeer_Mode |
| then |
| Set_String (" E"); |
| Set_Unit_Number (Unum_Spec); |
| Set_String (" := E"); |
| Set_Unit_Number (Unum_Spec); |
| Set_String (" + 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 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 |
| -- Check incompatibilities with No_Multiple_Elaboration |
| |
| if not CodePeer_Mode |
| and then Cumulative_Restrictions.Set (No_Multiple_Elaboration) |
| then |
| -- Force_Checking_Of_Elaboration_Flags (-F) not allowed |
| |
| if Force_Checking_Of_Elaboration_Flags then |
| Osint.Fail |
| ("-F (force elaboration checks) switch not allowed " |
| & "with restriction No_Multiple_Elaboration active"); |
| |
| -- Interfacing of libraries not allowed |
| |
| elsif Interface_Library_Unit then |
| Osint.Fail |
| ("binding of interfaced libraries not allowed " |
| & "with restriction No_Multiple_Elaboration active"); |
| |
| -- Non-Ada main program not allowed |
| |
| elsif not Bind_Main_Program then |
| Osint.Fail |
| ("non-Ada main program not allowed " |
| & "with restriction No_Multiple_Elaboration active"); |
| end if; |
| end if; |
| |
| -- OK, see if we need to test elaboration flag |
| |
| Check_Elab_Flag := |
| Units.Table (Unum_Spec).Set_Elab_Entity |
| and then 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 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; |
| |
| 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 |
| and then Units.Table (Unum_Spec).Set_Elab_Entity |
| then |
| Set_String (" E"); |
| Set_Unit_Number (Unum_Spec); |
| Set_String (" := E"); |
| Set_Unit_Number (Unum_Spec); |
| Set_String (" + 1;"); |
| Write_Statement_Buffer; |
| end if; |
| end if; |
| end; |
| end loop; |
| end Gen_Elab_Calls; |
| |
| ------------------------ |
| -- Gen_Elab_Externals -- |
| ------------------------ |
| |
| procedure Gen_Elab_Externals (Elab_Order : Unit_Id_Array) is |
| begin |
| if CodePeer_Mode then |
| return; |
| end if; |
| |
| for E in Elab_Order'Range loop |
| declare |
| Unum : constant Unit_Id := Elab_Order (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 |
| Get_Name_String (U.Sfile); |
| Set_String (" "); |
| Set_String ("E"); |
| Set_Unit_Number (Unum); |
| Set_String (" : Short_Integer; pragma Import (Ada, E"); |
| Set_Unit_Number (Unum); |
| Set_String (", """); |
| Get_Name_String (U.Uname); |
| 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 (Elab_Order : Unit_Id_Array) is |
| begin |
| WBI (""); |
| WBI (" -- BEGIN ELABORATION ORDER"); |
| |
| for J in Elab_Order'Range loop |
| Set_String (" -- "); |
| Get_Name_String (Units.Table (Elab_Order (J)).Uname); |
| Set_Name_Buffer; |
| Write_Statement_Buffer; |
| end loop; |
| |
| WBI (" -- END ELABORATION ORDER"); |
| end Gen_Elab_Order; |
| |
| -------------------------- |
| -- Gen_Finalize_Library -- |
| -------------------------- |
| |
| procedure Gen_Finalize_Library (Elab_Order : Unit_Id_Array) is |
| 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; |
| |
| -- Local variables |
| |
| Count : Int := 1; |
| U : Unit_Record; |
| Uspec : Unit_Record; |
| Unum : Unit_Id; |
| |
| -- Start of processing for Gen_Finalize_Library |
| |
| begin |
| if CodePeer_Mode then |
| return; |
| end if; |
| |
| for E in reverse Elab_Order'Range loop |
| Unum := Elab_Order (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 (Ada, F<Count>, |
| -- "xx__yy__finalize_[body|spec]"); |
| |
| Set_String (" pragma Import (Ada, F"); |
| Set_Int (Count); |
| Set_String (", """); |
| |
| -- Perform name construction |
| |
| 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. |
| |
| 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;"); |
| 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 (Elab_Order : Unit_Id_Array) 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'Range 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 (E)).SAL_Interface |
| and then Units.Table (Elab_Order (E)).Utype /= Is_Spec |
| then |
| Get_Name_String |
| (ALIs.Table |
| (Units.Table (Elab_Order (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 |
| |
| 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; |
| |
| if not (Opt.No_Run_Time_Mode or 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 inclusion in -K output as -static and |
| -- -shared are not usually specified linker options. |
| |
| WBI (" -- " & Name_Buffer (1 .. Name_Len)); |
| 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, we may get duplicate symbols when |
| -- linking (not clear if this is still the case, but it is harmless). |
| |
| if not (Opt.No_Run_Time_Mode or else Opt.No_Stdlib) then |
| 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; |
| Elab_Order : Unit_Id_Array) |
| is |
| begin |
| -- Acquire settings for Interrupt_State pragmas |
| |
| Set_IS_Pragma_Table; |
| |
| -- Acquire settings for Priority_Specific_Dispatching pragma |
| |
| Set_PSD_Pragma_Table; |
| |
| -- 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'Range loop |
| if Units.Table (Elab_Order (E)).No_Elab then |
| null; |
| else |
| Num_Elab_Calls := Num_Elab_Calls + 1; |
| end if; |
| end loop; |
| |
| -- Count the number of statically allocated stacks to be generated by |
| -- the binder. If the user has specified the number of default-sized |
| -- secondary stacks, use that number. Otherwise start the count at one |
| -- as the binder is responsible for creating a secondary stack for the |
| -- main task. |
| |
| if Opt.Quantity_Of_Default_Size_Sec_Stacks /= -1 then |
| Num_Sec_Stacks := Quantity_Of_Default_Size_Sec_Stacks; |
| elsif Sec_Stack_Used then |
| Num_Sec_Stacks := 1; |
| end if; |
| |
| for J in Units.First .. Units.Last loop |
| Num_Primary_Stacks := |
| Num_Primary_Stacks + Units.Table (J).Primary_Stack_Count; |
| |
| Num_Sec_Stacks := |
| Num_Sec_Stacks + Units.Table (J).Sec_Stack_Count; |
| end loop; |
| |
| -- Generate output file in appropriate language |
| |
| Gen_Output_File_Ada (Filename, Elab_Order); |
| end Gen_Output_File; |
| |
| ------------------------- |
| -- Gen_Output_File_Ada -- |
| ------------------------- |
| |
| procedure Gen_Output_File_Ada |
| (Filename : String; Elab_Order : Unit_Id_Array) |
| 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 (Elab_Order); |
| -- 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 Warnings (Off);"); |
| 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 withs of System.Secondary_Stack and System.Parameters to |
| -- allow the generation of the default-sized secondary stack pool. |
| |
| if Sec_Stack_Used then |
| WBI ("with System.Parameters;"); |
| WBI ("with System.Secondary_Stack;"); |
| end if; |
| |
| Resolve_Binder_Options (Elab_Order); |
| |
| -- Generate standard with's |
| |
| if not Suppress_Standard_Library_On_Target then |
| if CodePeer_Mode then |
| WBI ("with System.Standard_Library;"); |
| end if; |
| end if; |
| |
| WBI ("package " & Ada_Main & " is"); |
| |
| -- 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 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 |
| -- run-time 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; |
| |
| -- 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); |
| |
| 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_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 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; |
| |
| -- Generate version numbers for units, only if needed. Be very safe on |
| -- the condition. |
| |
| if not Configurable_Run_Time_On_Target |
| or else System_Version_Control_Used |
| or else not Bind_Main_Program |
| then |
| Gen_Versions; |
| end if; |
| |
| Gen_Elab_Order (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 Warnings (Off);"); |
| 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 pragma Suppress (Overflow_Check). This is needed for recent |
| -- versions of the compiler which have overflow checks on by default. |
| -- We do not want overflow checking enabled for the increments of the |
| -- elaboration variables (since this can cause an unwanted reference to |
| -- the last chance exception handler for limited run-times). |
| |
| WBI ("pragma Suppress (Overflow_Check);"); |
| |
| -- 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; |
| |
| -- Generate with of Ada.Exceptions if needs library finalization |
| |
| if Needs_Library_Finalization then |
| WBI ("with Ada.Exceptions;"); |
| end if; |
| |
| -- Generate with of System.Elaboration_Allocators if the restriction |
| -- No_Standard_Allocators_After_Elaboration was present. |
| |
| if Cumulative_Restrictions.Set |
| (No_Standard_Allocators_After_Elaboration) |
| then |
| WBI ("with System.Elaboration_Allocators;"); |
| end if; |
| |
| -- Generate start of package body |
| |
| WBI (""); |
| WBI ("package body " & Ada_Main & " is"); |
| WBI (""); |
| |
| -- Generate externals for elaboration entities |
| |
| Gen_Elab_Externals (Elab_Order); |
| |
| -- Generate default-sized secondary stacks pool. At least one stack is |
| -- created and assigned to the environment task if secondary stacks are |
| -- used by the program. |
| |
| if Sec_Stack_Used then |
| Set_String (" Sec_Default_Sized_Stacks"); |
| Set_String (" : array (1 .. "); |
| Set_Int (Num_Sec_Stacks); |
| Set_String (") of aliased System.Secondary_Stack.SS_Stack ("); |
| |
| if Opt.Default_Sec_Stack_Size /= No_Stack_Size then |
| Set_Int (Opt.Default_Sec_Stack_Size); |
| else |
| Set_String ("System.Parameters.Runtime_Default_Sec_Stack_Size"); |
| end if; |
| |
| Set_String (");"); |
| Write_Statement_Buffer; |
| WBI (""); |
| end if; |
| |
| -- Generate reference |
| |
| 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; |
| |
| if not Suppress_Standard_Library_On_Target then |
| |
| -- The B.1(39) implementation advice says that the adainit and |
| -- 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. |
| |
| WBI (" Is_Elaborated : Boolean := False;"); |
| |
| -- Generate bind environment string |
| |
| Gen_Bind_Env_String; |
| 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 (Elab_Order); |
| end if; |
| |
| Gen_Adafinal; |
| end if; |
| |
| Gen_Adainit (Elab_Order); |
| |
| if Bind_Main_Program then |
| Gen_Main; |
| end if; |
| |
| -- Output object file list and the Ada body is complete |
| |
| Gen_Object_Files_Options (Elab_Order); |
| |
| 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 |
| -- 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 (Elab_Order : Unit_Id_Array) return Boolean is |
| U : Unit_Record; |
| Unum : Unit_Id; |
| |
| begin |
| for E in reverse Elab_Order'Range loop |
| Unum := Elab_Order (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; |
| |
| ---------- |
| -- Hash -- |
| ---------- |
| |
| function Hash (Nam : Name_Id) return Header_Num is |
| begin |
| return Int (Nam - Names_Low_Bound) rem Header_Num'Last; |
| end Hash; |
| |
| ---------------------- |
| -- Lt_Linker_Option -- |
| ---------------------- |
| |
| function Lt_Linker_Option (Op1 : Natural; 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 (Elab_Order : Unit_Id_Array) 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 a helper to |
| -- avoid explicitly dealing 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 Resolve_Binder_Options |
| |
| begin |
| for E in Elab_Order'Range loop |
| Get_Name_String (Units.Table (Elab_Order (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 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"); |
| |
| -- Ditto for the use of System.Secondary_Stack |
| |
| Check_Package |
| (System_Secondary_Stack_Used, "system.secondary_stack%s"); |
| |
| -- Ditto for use of an SMP bareboard runtime |
| |
| Check_Package (System_BB_CPU_Primitives_Multiprocessors_Used, |
| "system.bb.cpu_primitives.multiprocessors%s"); |
| |
| -- Ditto for System.Version_Control, which is used for Version and |
| -- Body_Version attributes. |
| |
| Check_Package (System_Version_Control_Used, |
| "system.version_control%s"); |
| end loop; |
| end Resolve_Binder_Options; |
| |
| ------------------ |
| -- Set_Bind_Env -- |
| ------------------ |
| |
| procedure Set_Bind_Env (Key, Value : String) is |
| begin |
| -- The lengths of Key and Value are stored as single bytes |
| |
| if Key'Length > 255 then |
| Osint.Fail ("bind environment key """ & Key & """ too long"); |
| end if; |
| |
| if Value'Length > 255 then |
| Osint.Fail ("bind environment value """ & Value & """ too long"); |
| end if; |
| |
| Bind_Environment.Set (Name_Find (Key), Name_Find (Value)); |
| end Set_Bind_Env; |
| |
| ----------------- |
| -- Set_Boolean -- |
| ----------------- |
| |
| procedure Set_Boolean (B : Boolean) is |
| False_Str : constant String := "False"; |
| True_Str : constant String := "True"; |
| |
| begin |
| if B then |
| Statement_Buffer (Stm_Last + 1 .. Stm_Last + True_Str'Length) := |
| True_Str; |
| Stm_Last := Stm_Last + True_Str'Length; |
| else |
| Statement_Buffer (Stm_Last + 1 .. Stm_Last + False_Str'Length) := |
| False_Str; |
| Stm_Last := Stm_Last + False_Str'Length; |
| end if; |
| end Set_Boolean; |
| |
| -------------- |
| -- Set_Char -- |
| -------------- |
| |
| procedure Set_Char (C : Character) is |
| begin |
| Stm_Last := Stm_Last + 1; |
| Statement_Buffer (Stm_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; |
| |
| Stm_Last := Stm_Last + 1; |
| Statement_Buffer (Stm_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 (Stm_Last + 1 .. Stm_Last + S'Length) := S; |
| Stm_Last := Stm_Last + S'Length; |
| end Set_String; |
| |
| ------------------------ |
| -- Set_String_Replace -- |
| ------------------------ |
| |
| procedure Set_String_Replace (S : String) is |
| begin |
| Statement_Buffer (Stm_Last - S'Length + 1 .. Stm_Last) := S; |
| end Set_String_Replace; |
| |
| ------------------- |
| -- Set_Unit_Name -- |
| ------------------- |
| |
| procedure Set_Unit_Name is |
| begin |
| 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_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_Bind_Line -- |
| --------------------- |
| |
| procedure Write_Bind_Line (S : String) is |
| begin |
| -- Need to strip trailing LF from S |
| |
| WBI (S (S'First .. S'Last - 1)); |
| end Write_Bind_Line; |
| |
| ---------------------------- |
| -- Write_Statement_Buffer -- |
| ---------------------------- |
| |
| procedure Write_Statement_Buffer is |
| begin |
| WBI (Statement_Buffer (1 .. Stm_Last)); |
| Stm_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; |