From fb5e7daea59060603a2e526cab4e35b32a8e9438 Mon Sep 17 00:00:00 2001 From: Mikael Pettersson Date: Mon, 5 Dec 2016 12:27:55 +0100 Subject: [PATCH] re PR ada/48835 (porting GNAT to m68k-linux) PR ada/48835 * gcc-interface/Makefile.in: Add support for m68k-linux. * system-linux-m68k.ads: New file. From-SVN: r243247 --- gcc/ada/ChangeLog | 6 ++ gcc/ada/gcc-interface/Makefile.in | 29 ++++++ gcc/ada/system-linux-m68k.ads | 155 ++++++++++++++++++++++++++++++ 3 files changed, 190 insertions(+) create mode 100644 gcc/ada/system-linux-m68k.ads diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog index 1a9f161cb29..858f8cb5abb 100644 --- a/gcc/ada/ChangeLog +++ b/gcc/ada/ChangeLog @@ -1,3 +1,9 @@ +2016-12-05 Mikael Pettersson + + PR ada/48835 + * gcc-interface/Makefile.in: Add support for m68k-linux. + * system-linux-m68k.ads: New file. + 2016-12-05 Eric Botcazou * system-darwin-ppc.ads (Support_Atomic_Primitives): Set to True only diff --git a/gcc/ada/gcc-interface/Makefile.in b/gcc/ada/gcc-interface/Makefile.in index ec8aa076cbb..98889c0f30f 100644 --- a/gcc/ada/gcc-interface/Makefile.in +++ b/gcc/ada/gcc-interface/Makefile.in @@ -2049,6 +2049,35 @@ ifeq ($(strip $(filter-out hppa% linux%,$(target_cpu) $(target_os))),) LIBRARY_VERSION := $(LIB_VERSION) endif +# M68K Linux +ifeq ($(strip $(filter-out m68k% linux%,$(target_cpu) $(target_os))),) + LIBGNAT_TARGET_PAIRS = \ + a-intnam.ads. -- +-- -- +-- 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). + + 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 := 0.000_001; + + -- 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) + + -- Is the following actually true for GNU/Linux/m68k? + -- + -- 0 .. 98 corresponds to the system priority range 1 .. 99. + -- + -- If the scheduling policy is SCHED_FIFO or SCHED_RR the runtime makes use + -- of the entire range provided by the system. + -- + -- If the scheduling policy is SCHED_OTHER the only valid system priority + -- is 1 and other values are simply ignored. + + Max_Priority : constant Positive := 97; + Max_Interrupt_Priority : constant Positive := 98; + + subtype Any_Priority is Integer range 0 .. 98; + subtype Priority is Any_Priority range 0 .. 97; + subtype Interrupt_Priority is Any_Priority range 98 .. 98; + + Default_Priority : constant Priority := 48; + +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 := False; + 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 := False; + Stack_Check_Limits : constant Boolean := False; + Support_Aggregates : constant Boolean := True; + Support_Atomic_Primitives : 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 := True; + +end System; -- 2.30.2