--- /dev/null
+------------------------------------------------------------------------------
+-- --
+-- GNAT COMPILER COMPONENTS --
+-- --
+-- G N A T . S O C K E T S . L I N K E R _ O P T I O N S --
+-- --
+-- S p e c --
+-- --
+-- Copyright (C) 2001-2017, AdaCore --
+-- --
+-- 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. --
+-- --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
+-- --
+-- You should have received a copy of the GNU General Public License and --
+-- a copy of the GCC Runtime Library Exception along with this program; --
+-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
+-- <http://www.gnu.org/licenses/>. --
+-- --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
+-- --
+------------------------------------------------------------------------------
+
+-- This package is used to provide target specific linker_options for the
+-- support of sockets as required by the package GNAT.Sockets.
+
+-- This is the LynxOS version of this package
+
+-- This package should not be directly with'ed by an application program
+
+package GNAT.Sockets.Linker_Options is
+private
+ pragma Linker_Options ("-lbsd");
+end GNAT.Sockets.Linker_Options;
--- /dev/null
+------------------------------------------------------------------------------
+-- --
+-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
+-- --
+-- S Y S T E M . O S _ P R I M I T I V E S --
+-- --
+-- S p e c --
+-- --
+-- Copyright (C) 1998-2017, Free Software Foundation, Inc. --
+-- --
+-- GNARL 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. --
+-- --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
+-- --
+-- You should have received a copy of the GNU General Public License and --
+-- a copy of the GCC Runtime Library Exception along with this program; --
+-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
+-- <http://www.gnu.org/licenses/>. --
+-- --
+-- GNARL was developed by the GNARL team at Florida State University. --
+-- Extensive contributions were provided by Ada Core Technologies, Inc. --
+-- --
+------------------------------------------------------------------------------
+
+-- This package provides low level primitives used to implement clock and
+-- delays in non tasking applications, for LynxOS.
+
+-- The choice of the real clock/delay implementation (depending on whether
+-- tasking is involved or not) is done via soft links (see s-soflin.ads)
+
+-- NEVER add any dependency to tasking packages here
+
+package System.OS_Primitives is
+ pragma Preelaborate;
+
+ Max_Sensible_Delay : constant Duration := 16#10_0000.0#;
+ -- LynxOS does not support delays as long as half a year, so we set this to
+ -- a shorter, but still fairly long, duration. Experiments show that if
+ -- pthread_cond_timedwait is passed an abstime much greater than about
+ -- 2**21, it fails, returning EAGAIN. The cutoff is somewhere between
+ -- 16#20_8000.0# and 16#20_F000.0#. This behavior is not documented.
+
+ procedure Initialize;
+ -- Initialize global settings related to this package. This procedure
+ -- should be called before any other subprograms in this package. Note
+ -- that this procedure can be called several times.
+
+ function Clock return Duration;
+ pragma Inline (Clock);
+ -- Returns "absolute" time, represented as an offset relative to "the
+ -- Epoch", which is Jan 1, 1970 00:00:00 UTC on UNIX systems. This
+ -- implementation is affected by system's clock changes.
+
+ Relative : constant := 0;
+ Absolute_Calendar : constant := 1;
+ Absolute_RT : constant := 2;
+ -- Values for Mode call below. Note that the compiler (exp_ch9.adb) relies
+ -- on these values. So any change here must be reflected in corresponding
+ -- changes in the compiler.
+
+ procedure Timed_Delay (Time : Duration; Mode : Integer);
+ -- Implements the semantics of the delay statement when no tasking is used
+ -- in the application.
+ --
+ -- Mode is one of the three values above
+ --
+ -- Time is a relative or absolute duration value, depending on Mode.
+ --
+ -- Note that currently Ada.Real_Time always uses the tasking run time,
+ -- so this procedure should never be called with Mode set to Absolute_RT.
+ -- This may change in future or bare board implementations.
+
+end System.OS_Primitives;
--- /dev/null
+------------------------------------------------------------------------------
+-- --
+-- GNAT COMPILER COMPONENTS --
+-- --
+-- S Y S T E M . P A R A M E T E R S --
+-- --
+-- S p e c --
+-- --
+-- Copyright (C) 1992-2017, 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. --
+-- --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
+-- --
+-- You should have received a copy of the GNU General Public License and --
+-- a copy of the GCC Runtime Library Exception along with this program; --
+-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
+-- <http://www.gnu.org/licenses/>. --
+-- --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
+-- --
+------------------------------------------------------------------------------
+
+-- Version is used by VxWorks 653, VxWorks MILS, and VxWorks6 cert Ravenscar
+
+-- This package defines some system dependent parameters for GNAT. These
+-- are values that are referenced by the runtime library and are therefore
+-- relevant to the target machine.
+
+-- The parameters whose value is defined in the spec are not generally
+-- expected to be changed. If they are changed, it will be necessary to
+-- recompile the run-time library.
+
+-- The parameters which are defined by functions can be changed by modifying
+-- the body of System.Parameters in file s-parame.adb. A change to this body
+-- requires only rebinding and relinking of the application.
+
+-- Note: do not introduce any pragma Inline statements into this unit, since
+-- otherwise the relinking and rebinding capability would be deactivated.
+
+package System.Parameters is
+ pragma Pure;
+
+ ---------------------------------------
+ -- Task And Stack Allocation Control --
+ ---------------------------------------
+
+ type Task_Storage_Size is new Integer;
+ -- Type used in tasking units for task storage size
+
+ type Size_Type is new Task_Storage_Size;
+ -- Type used to provide task storage size to runtime
+
+ Unspecified_Size : constant Size_Type := Size_Type'First;
+ -- Value used to indicate that no size type is set
+
+ subtype Percentage is Size_Type range -1 .. 100;
+ Dynamic : constant Size_Type := -1;
+ -- The secondary stack ratio is a constant between 0 and 100 which
+ -- determines the percentage of the allocated task stack that is
+ -- used by the secondary stack (the rest being the primary stack).
+ -- The special value of minus one indicates that the secondary
+ -- stack is to be allocated from the heap instead.
+
+ Sec_Stack_Percentage : constant Percentage := 25;
+ -- This constant defines the handling of the secondary stack
+
+ Sec_Stack_Dynamic : constant Boolean := Sec_Stack_Percentage = Dynamic;
+ -- Convenient Boolean for testing for dynamic secondary stack
+
+ function Default_Stack_Size return Size_Type;
+ -- Default task stack size used if none is specified
+
+ function Minimum_Stack_Size return Size_Type;
+ -- Minimum task stack size permitted
+
+ function Adjust_Storage_Size (Size : Size_Type) return Size_Type;
+ -- Given the storage size stored in the TCB, return the Storage_Size
+ -- value required by the RM for the Storage_Size attribute. The
+ -- required adjustment is as follows:
+ --
+ -- when Size = Unspecified_Size, return Default_Stack_Size
+ -- when Size < Minimum_Stack_Size, return Minimum_Stack_Size
+ -- otherwise return given Size
+
+ Default_Env_Stack_Size : constant Size_Type := 14_336;
+ -- Assumed size of the environment task, if no other information
+ -- is available. This value is used when stack checking is
+ -- enabled and no GNAT_STACK_LIMIT environment variable is set.
+ -- This value is chosen as the VxWorks default stack size is 20kB,
+ -- and a little more than 4kB is necessary for the run time.
+
+ Stack_Grows_Down : constant Boolean := True;
+ -- This constant indicates whether the stack grows up (False) or
+ -- down (True) in memory as functions are called. It is used for
+ -- proper implementation of the stack overflow check.
+
+ ----------------------------------------------
+ -- Characteristics of types in Interfaces.C --
+ ----------------------------------------------
+
+ long_bits : constant := Long_Integer'Size;
+ -- Number of bits in type long and unsigned_long. The normal convention
+ -- is that this is the same as type Long_Integer, but this may not be true
+ -- of all targets.
+
+ ptr_bits : constant := Standard'Address_Size;
+ subtype C_Address is System.Address;
+ -- Number of bits in Interfaces.C pointers, normally a standard address
+
+ C_Malloc_Linkname : constant String := "__gnat_malloc";
+ -- Name of runtime function used to allocate such a pointer
+
+ ----------------------------------------------
+ -- Behavior of Pragma Finalize_Storage_Only --
+ ----------------------------------------------
+
+ -- Garbage_Collected is a Boolean constant whose value indicates the
+ -- effect of the pragma Finalize_Storage_Entry on a controlled type.
+
+ -- Garbage_Collected = False
+
+ -- The system releases all storage on program termination only,
+ -- but not other garbage collection occurs, so finalization calls
+ -- are omitted only for outer level objects can be omitted if
+ -- pragma Finalize_Storage_Only is used.
+
+ -- Garbage_Collected = True
+
+ -- The system provides full garbage collection, so it is never
+ -- necessary to release storage for controlled objects for which
+ -- a pragma Finalize_Storage_Only is used.
+
+ Garbage_Collected : constant Boolean := False;
+ -- The storage mode for this system (release on program exit)
+
+ ---------------------
+ -- Tasking Profile --
+ ---------------------
+
+ -- In the following sections, constant parameters are defined to
+ -- allow some optimizations and fine tuning within the tasking run time
+ -- based on restrictions on the tasking features.
+
+ ----------------------
+ -- Locking Strategy --
+ ----------------------
+
+ Single_Lock : constant Boolean := False;
+ -- Indicates whether a single lock should be used within the tasking
+ -- run-time to protect internal structures. If True, a single lock
+ -- will be used, meaning less locking/unlocking operations, but also
+ -- more global contention. In general, Single_Lock should be set to
+ -- True on single processor machines, and to False to multi-processor
+ -- systems, but this can vary from application to application and also
+ -- depends on the scheduling policy.
+
+ -------------------
+ -- Task Abortion --
+ -------------------
+
+ No_Abort : constant Boolean := False;
+ -- This constant indicates whether abort statements and asynchronous
+ -- transfer of control (ATC) are disallowed. If set to True, it is
+ -- assumed that neither construct is used, and the run time does not
+ -- need to defer/undefer abort and check for pending actions at
+ -- completion points. A value of True for No_Abort corresponds to:
+ -- pragma Restrictions (No_Abort_Statements);
+ -- pragma Restrictions (Max_Asynchronous_Select_Nesting => 0);
+
+ ---------------------
+ -- Task Attributes --
+ ---------------------
+
+ Max_Attribute_Count : constant := 8;
+ -- Number of task attributes stored in the task control block
+
+ -----------------------
+ -- Task Image Length --
+ -----------------------
+
+ Max_Task_Image_Length : constant := 32;
+ -- This constant specifies the maximum length of a task's image
+
+ ------------------------------
+ -- Exception Message Length --
+ ------------------------------
+
+ Default_Exception_Msg_Max_Length : constant := 200;
+ -- This constant specifies the default number of characters to allow
+ -- in an exception message (200 is minimum required by RM 11.4.1(18)).
+
+end System.Parameters;
--- /dev/null
+------------------------------------------------------------------------------
+-- --
+-- GNAT RUN-TIME COMPONENTS --
+-- --
+-- S Y S T E M --
+-- --
+-- S p e c --
+-- (LynxOS-178 PPC Version) --
+-- --
+-- Copyright (C) 2009-2017, Free Software Foundation, Inc. --
+-- --
+-- This specification is derived from the Ada Reference Manual for use with --
+-- GNAT. The copyright notice above, and the license provisions that follow --
+-- apply solely to the contents of the part following the private keyword. --
+-- --
+-- 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. --
+-- --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
+-- --
+-- You should have received a copy of the GNU General Public License and --
+-- a copy of the GCC Runtime Library Exception along with this program; --
+-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
+-- <http://www.gnu.org/licenses/>. --
+-- --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
+-- --
+------------------------------------------------------------------------------
+
+package System is
+ pragma Pure;
+ -- Note that we take advantage of the implementation permission to make
+ -- this unit Pure instead of Preelaborable; see RM 13.7.1(15). In Ada
+ -- 2005, this is Pure in any case (AI-362).
+
+ pragma No_Elaboration_Code_All;
+ -- Allow the use of that restriction in units that WITH this unit
+
+ type Name is (SYSTEM_NAME_GNAT);
+ System_Name : constant Name := SYSTEM_NAME_GNAT;
+
+ -- System-Dependent Named Numbers
+
+ Min_Int : constant := Long_Long_Integer'First;
+ Max_Int : constant := Long_Long_Integer'Last;
+
+ Max_Binary_Modulus : constant := 2 ** Long_Long_Integer'Size;
+ Max_Nonbinary_Modulus : constant := 2 ** Integer'Size - 1;
+
+ Max_Base_Digits : constant := Long_Long_Float'Digits;
+ Max_Digits : constant := Long_Long_Float'Digits;
+
+ Max_Mantissa : constant := 63;
+ Fine_Delta : constant := 2.0 ** (-Max_Mantissa);
+
+ Tick : constant := 0.01;
+
+ -- Storage-related Declarations
+
+ type Address is private;
+ pragma Preelaborable_Initialization (Address);
+ Null_Address : constant Address;
+
+ Storage_Unit : constant := 8;
+ Word_Size : constant := 32;
+ Memory_Size : constant := 2 ** 32;
+
+ -- Address comparison
+
+ function "<" (Left, Right : Address) return Boolean;
+ function "<=" (Left, Right : Address) return Boolean;
+ function ">" (Left, Right : Address) return Boolean;
+ function ">=" (Left, Right : Address) return Boolean;
+ function "=" (Left, Right : Address) return Boolean;
+
+ pragma Import (Intrinsic, "<");
+ pragma Import (Intrinsic, "<=");
+ pragma Import (Intrinsic, ">");
+ pragma Import (Intrinsic, ">=");
+ pragma Import (Intrinsic, "=");
+
+ -- Other System-Dependent Declarations
+
+ type Bit_Order is (High_Order_First, Low_Order_First);
+ Default_Bit_Order : constant Bit_Order := High_Order_First;
+ pragma Warnings (Off, Default_Bit_Order); -- kill constant condition warning
+
+ -- Priority-related Declarations (RM D.1)
+
+ -- 17 is the system determined default priority for user applications
+ -- running on LynxOS.
+
+ -- The standard (Rm 13.7) requires that Default_Priority has the value:
+
+ -- (Priority'First + Priority'Last) / 2
+
+ -- However, the default priority given by the OS is not the same thing as
+ -- the Ada value Default_Prioirity (previous examples include VxWorks).
+ -- Therefore, we follow a model based on the full range of LynxOS-178
+ -- priorities.
+
+ Max_Priority : constant Positive := 252;
+ Max_Interrupt_Priority : constant Positive := 255;
+
+ subtype Any_Priority is Integer range 0 .. 255;
+ subtype Priority is Any_Priority range 0 .. 252;
+ subtype Interrupt_Priority is Any_Priority range 253 .. 255;
+
+ Default_Priority : constant Priority := 126;
+
+ -- Note that the priority of the environment task is set externally by the
+ -- OS
+
+private
+
+ type Address is mod Memory_Size;
+ Null_Address : constant Address := 0;
+
+ --------------------------------------
+ -- System Implementation Parameters --
+ --------------------------------------
+
+ -- These parameters provide information about the target that is used
+ -- by the compiler. They are in the private part of System, where they
+ -- can be accessed using the special circuitry in the Targparm unit
+ -- whose source should be consulted for more detailed descriptions
+ -- of the individual switch values.
+
+ Backend_Divide_Checks : constant Boolean := False;
+ Backend_Overflow_Checks : constant Boolean := True;
+ Command_Line_Args : constant Boolean := True;
+ Configurable_Run_Time : constant Boolean := False;
+ Denorm : constant Boolean := True;
+ Duration_32_Bits : constant Boolean := False;
+ Exit_Status_Supported : constant Boolean := True;
+ Fractional_Fixed_Ops : constant Boolean := False;
+ Frontend_Layout : constant Boolean := False;
+ Machine_Overflows : constant Boolean := False;
+ Machine_Rounds : constant Boolean := True;
+ Preallocated_Stacks : constant Boolean := False;
+ Signed_Zeros : constant Boolean := True;
+ Stack_Check_Default : constant Boolean := False;
+ Stack_Check_Probes : constant Boolean := True;
+ Stack_Check_Limits : constant Boolean := False;
+ Support_Aggregates : constant Boolean := True;
+ Support_Composite_Assign : constant Boolean := True;
+ Support_Composite_Compare : constant Boolean := True;
+ Support_Long_Shifts : constant Boolean := True;
+ Always_Compatible_Rep : constant Boolean := False;
+ Suppress_Standard_Library : constant Boolean := False;
+ Use_Ada_Main_Program_Name : constant Boolean := False;
+ Frontend_Exceptions : constant Boolean := False;
+ ZCX_By_Default : constant Boolean := False;
+
+end System;
projects / gcc.git / commitdiff