diff options
Diffstat (limited to 'gcc/ada/system-aix.ads')
| -rw-r--r-- | gcc/ada/system-aix.ads | 38 |
1 files changed, 20 insertions, 18 deletions
diff --git a/gcc/ada/system-aix.ads b/gcc/ada/system-aix.ads index fcc99fd711c..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) 1992-2006, 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 -- @@ -51,7 +51,7 @@ package System is 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; @@ -64,6 +64,7 @@ package System is -- Storage-related Declarations type Address is private; + pragma Preelaborable_Initialization (Address); Null_Address : constant Address; Storage_Unit : constant := 8; @@ -92,14 +93,24 @@ package System is -- 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 @@ -116,11 +127,9 @@ 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; @@ -129,7 +138,6 @@ private Frontend_Layout : 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; @@ -142,12 +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; |