X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fada%2Fsystem-aix.ads;h=4d299895caf660597cdd18a8e3018852af8157ed;hb=5f6832932ed0051ba8b9233b9ca408d5a3ff43bd;hp=9129cbd4e6155bac1fa9ec2076e5b88d54f697ca;hpb=d8ede95f4b354ee878e4d62136c0898b4cbc452b;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/ada/system-aix.ads b/gcc/ada/system-aix.ads index 9129cbd4e61..4d299895caf 100644 --- a/gcc/ada/system-aix.ads +++ b/gcc/ada/system-aix.ads @@ -7,7 +7,7 @@ -- S p e c -- -- (AIX/PPC Version) -- -- -- --- Copyright (C) 1992-2005 Free Software Foundation, Inc. -- +-- Copyright (C) 1992-2007, 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 -- @@ -21,8 +21,8 @@ -- 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 COPYING. If not, write -- --- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- --- MA 02111-1307, USA. -- +-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- +-- Boston, MA 02110-1301, USA. -- -- -- -- As a special exception, if other files instantiate generics from this -- -- unit, or you link this unit with other files to produce an executable, -- @@ -37,9 +37,10 @@ ------------------------------------------------------------------------------ package System is -pragma Pure (System); --- Note that we take advantage of the implementation permission to --- make this unit Pure instead of Preelaborable, see RM 13.7(36) + 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; @@ -50,7 +51,7 @@ pragma Pure (System); Max_Int : constant := Long_Long_Integer'Last; Max_Binary_Modulus : constant := 2 ** Long_Long_Integer'Size; - Max_Nonbinary_Modulus : constant := Integer'Last; + Max_Nonbinary_Modulus : constant := 2 ** Integer'Size - 1; Max_Base_Digits : constant := Long_Long_Float'Digits; Max_Digits : constant := Long_Long_Float'Digits; @@ -63,6 +64,7 @@ pragma Pure (System); -- Storage-related Declarations type Address is private; + pragma Preelaborable_Initialization (Address); Null_Address : constant Address; Storage_Unit : constant := 8; @@ -87,17 +89,28 @@ pragma Pure (System); 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) - Max_Priority : constant Positive := 30; - Max_Interrupt_Priority : constant Positive := 31; + -- 0 .. 126 corresponds to the system priority range 1 .. 127. + -- + -- 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 that is the only value ever passed to the system, regardless of + -- how priorities are set by user programs. - subtype Any_Priority is Integer range 0 .. 31; - subtype Priority is Any_Priority range 0 .. 30; - subtype Interrupt_Priority is Any_Priority range 31 .. 31; + Max_Priority : constant Positive := 125; + Max_Interrupt_Priority : constant Positive := 126; - Default_Priority : constant Priority := 15; + subtype Any_Priority is Integer range 0 .. 126; + subtype Priority is Any_Priority range 0 .. 125; + subtype Interrupt_Priority is Any_Priority range 126 .. 126; + + Default_Priority : constant Priority := + (Priority'First + Priority'Last) / 2; private @@ -114,25 +127,21 @@ private -- whose source should be consulted for more detailed descriptions -- of the individual switch values. - AAMP : constant Boolean := False; Backend_Divide_Checks : constant Boolean := False; Backend_Overflow_Checks : constant Boolean := False; Command_Line_Args : constant Boolean := True; - Compiler_System_Version : constant Boolean := False; 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; - Functions_Return_By_DSP : constant Boolean := False; Machine_Overflows : constant Boolean := False; Machine_Rounds : constant Boolean := True; - OpenVMS : constant Boolean := False; Preallocated_Stacks : constant Boolean := False; Signed_Zeros : constant Boolean := True; Stack_Check_Default : constant Boolean := False; - Stack_Check_Probes : constant Boolean := False; + Stack_Check_Probes : constant Boolean := True; Support_64_Bit_Divides : constant Boolean := True; Support_Aggregates : constant Boolean := True; Support_Composite_Assign : constant Boolean := True; @@ -141,12 +150,6 @@ private Suppress_Standard_Library : constant Boolean := False; Use_Ada_Main_Program_Name : constant Boolean := False; ZCX_By_Default : constant Boolean := False; - GCC_ZCX_Support : constant Boolean := False; - Front_End_ZCX_Support : constant Boolean := False; - - -- Obsolete entries, to be removed eventually (bootstrap issues!) - - High_Integrity_Mode : constant Boolean := False; - Long_Shifts_Inlined : constant Boolean := True; + GCC_ZCX_Support : constant Boolean := True; -- Post GCC 4 only end System;