From: Doug Rupp Date: Thu, 24 May 2018 13:04:11 +0000 (+0000) Subject: [Ada] Initial port of x86-lynx178elf runtimes X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=3cac09db8dfb0d910c8c50a7e86826833eeb61f8;p=gcc.git [Ada] Initial port of x86-lynx178elf runtimes 2018-05-24 Doug Rupp gcc/ada/ * argv-lynxos178-raven-cert.c: New file. * libgnat/system-lynxos178-x86.ads: New file. From-SVN: r260641 --- diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog index ee27de0c2a3..f526a7d4c08 100644 --- a/gcc/ada/ChangeLog +++ b/gcc/ada/ChangeLog @@ -1,3 +1,8 @@ +2018-05-24 Doug Rupp + + * argv-lynxos178-raven-cert.c: New file. + * libgnat/system-lynxos178-x86.ads: New file. + 2018-05-23 Hristian Kirtchev * exp_disp.adb, freeze.adb, gnat1drv.adb, sem_ch5.adb, sem_spark.adb: diff --git a/gcc/ada/argv-lynxos178-raven-cert.c b/gcc/ada/argv-lynxos178-raven-cert.c new file mode 100644 index 00000000000..e0f2e223e36 --- /dev/null +++ b/gcc/ada/argv-lynxos178-raven-cert.c @@ -0,0 +1,77 @@ +/**************************************************************************** + * * + * GNAT COMPILER COMPONENTS * + * * + * A R G V * + * * + * C Implementation File * + * * + * Copyright (C) 1992-2018, 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 * + * . * + * * + * GNAT was originally developed by the GNAT team at New York University. * + * Extensive contributions were provided by Ada Core Technologies Inc. * + * * + ****************************************************************************/ + +/* Routines for accessing command line arguments from both the runtime + library and from the compiler itself. In the former case, gnat_argc + and gnat_argv are the original argc and argv values as stored by the + binder generated main program, and these routines are accessed from + the Ada.Command_Line package. In the compiler case, gnat_argc and + gnat_argv are the values as modified by toplev, and these routines + are accessed from the Osint package. */ + +/* This version is for the ravenscar-cert runtime in LynxOS-178, with + minimal support for Ada.Command_Line.Command_Name */ + +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +/* argc and argv of the main program are saved under gnat_argc and gnat_argv, + envp of the main program is saved under gnat_envp. + While gnat_argc and gnat_envp are not needed, they are referenced from + the binder-generated file so they need to be defined here */ + +int gnat_argc = 0; +const char **gnat_argv = (const char **) 0; +const char **gnat_envp = (const char **) 0; + +int +__gnat_len_arg (int arg_num) +{ + if (gnat_argv != NULL) + return strlen (gnat_argv[arg_num]); + else + return 0; +} + +void +__gnat_fill_arg (char *a, int i) +{ + if (gnat_argv != NULL) + strncpy (a, gnat_argv[i], strlen(gnat_argv[i])); +} + +#ifdef __cplusplus +} +#endif diff --git a/gcc/ada/libgnat/system-lynxos178-x86.ads b/gcc/ada/libgnat/system-lynxos178-x86.ads new file mode 100644 index 00000000000..123ded6348a --- /dev/null +++ b/gcc/ada/libgnat/system-lynxos178-x86.ads @@ -0,0 +1,162 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- S Y S T E M -- +-- -- +-- S p e c -- +-- (LynxOS-178 X86 Version) -- +-- -- +-- Copyright (C) 2009-2018, 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 -- +-- . -- +-- -- +-- 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 := Low_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;