+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNAT COMPILER COMPONENTS --
--- --
--- S Y S T E M . P R O G R A M _ I N F O --
--- --
--- B o d y --
--- --
--- $Revision: 1.1.16.1 $
--- --
--- Copyright (C) 1997-1999 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 2, 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. 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. --
--- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
--- --
--- GNAT was originally developed by the GNAT team at New York University. --
--- Extensive contributions were provided by Ada Core Technologies Inc. --
--- --
-------------------------------------------------------------------------------
-
--- This is an Irix (old pthread library) version of this package.
-
--- This package contains the parameters used by the run-time system at
--- program startup. These parameters are isolated in this package body to
--- facilitate replacement by the end user.
---
--- To replace the default values, copy this source file into your build
--- directory, edit the file to reflect your desired behavior, and recompile
--- with the command:
---
--- % gcc -c -O2 -gnatpg s-proinf.adb
---
--- then relink your application as usual.
---
-
-with GNAT.OS_Lib;
-
-package body System.Program_Info is
-
- Kbytes : constant := 1024;
-
- Default_Initial_Sproc_Count : constant := 0;
- Default_Max_Sproc_Count : constant := 128;
- Default_Sproc_Stack_Size : constant := 16#4000#;
- Default_Stack_Guard_Pages : constant := 1;
- Default_Default_Time_Slice : constant := 0.0;
- Default_Default_Task_Stack : constant := 12 * Kbytes;
- Default_Pthread_Sched_Signal : constant := 35;
- Default_Pthread_Arena_Size : constant := 16#40000#;
- Default_Os_Default_Priority : constant := 0;
-
- -------------------------
- -- Initial_Sproc_Count --
- -------------------------
-
- function Initial_Sproc_Count return Integer is
-
- function sysmp (P1 : Integer) return Integer;
- pragma Import (C, sysmp, "sysmp", "sysmp");
-
- MP_NPROCS : constant := 1; -- # processor in complex
-
- Pthread_Sproc_Count : constant GNAT.OS_Lib.String_Access :=
- GNAT.OS_Lib.Getenv ("PTHREAD_SPROC_COUNT");
-
- begin
- if Pthread_Sproc_Count.all'Length = 0 then
- return Default_Initial_Sproc_Count;
-
- elsif Pthread_Sproc_Count.all = "AUTO" then
- return sysmp (MP_NPROCS);
-
- else
- return Integer'Value (Pthread_Sproc_Count.all);
- end if;
- exception
- when others =>
- return Default_Initial_Sproc_Count;
- end Initial_Sproc_Count;
-
- ---------------------
- -- Max_Sproc_Count --
- ---------------------
-
- function Max_Sproc_Count return Integer is
- Pthread_Max_Sproc_Count : constant GNAT.OS_Lib.String_Access :=
- GNAT.OS_Lib.Getenv ("PTHREAD_MAX_SPROC_COUNT");
-
- begin
- if Pthread_Max_Sproc_Count.all'Length = 0 then
- return Default_Max_Sproc_Count;
- else
- return Integer'Value (Pthread_Max_Sproc_Count.all);
- end if;
- exception
- when others =>
- return Default_Max_Sproc_Count;
- end Max_Sproc_Count;
-
- ----------------------
- -- Sproc_Stack_Size --
- ----------------------
-
- function Sproc_Stack_Size return Integer is
- begin
- return Default_Sproc_Stack_Size;
- end Sproc_Stack_Size;
-
- ------------------------
- -- Default_Time_Slice --
- ------------------------
-
- function Default_Time_Slice return Duration is
- Pthread_Time_Slice_Sec : constant GNAT.OS_Lib.String_Access :=
- GNAT.OS_Lib.Getenv ("PTHREAD_TIME_SLICE_SEC");
- Pthread_Time_Slice_Usec : constant GNAT.OS_Lib.String_Access :=
- GNAT.OS_Lib.Getenv ("PTHREAD_TIME_SLICE_USEC");
-
- Val_Sec, Val_Usec : Integer := 0;
-
- begin
- if Pthread_Time_Slice_Sec.all'Length /= 0 or
- Pthread_Time_Slice_Usec.all'Length /= 0
- then
- if Pthread_Time_Slice_Sec.all'Length /= 0 then
- Val_Sec := Integer'Value (Pthread_Time_Slice_Sec.all);
- end if;
-
- if Pthread_Time_Slice_Usec.all'Length /= 0 then
- Val_Usec := Integer'Value (Pthread_Time_Slice_Usec.all);
- end if;
-
- return Duration (Val_Sec) + Duration (Val_Usec) / 1000.0;
- else
- return Default_Default_Time_Slice;
- end if;
-
- exception
- when others =>
- return Default_Default_Time_Slice;
- end Default_Time_Slice;
-
- ------------------------
- -- Default_Task_Stack --
- ------------------------
-
- function Default_Task_Stack return Integer is
- begin
- return Default_Default_Task_Stack;
- end Default_Task_Stack;
-
- -----------------------
- -- Stack_Guard_Pages --
- -----------------------
-
- function Stack_Guard_Pages return Integer is
- Pthread_Stack_Guard_Pages : constant GNAT.OS_Lib.String_Access :=
- GNAT.OS_Lib.Getenv ("PTHREAD_STACK_GUARD_PAGES");
-
- begin
- if Pthread_Stack_Guard_Pages.all'Length /= 0 then
- return Integer'Value (Pthread_Stack_Guard_Pages.all);
- else
- return Default_Stack_Guard_Pages;
- end if;
- exception
- when others =>
- return Default_Stack_Guard_Pages;
- end Stack_Guard_Pages;
-
- --------------------------
- -- Pthread_Sched_Signal --
- --------------------------
-
- function Pthread_Sched_Signal return Integer is
- begin
- return Default_Pthread_Sched_Signal;
- end Pthread_Sched_Signal;
-
- ------------------------
- -- Pthread_Arena_Size --
- ------------------------
-
- function Pthread_Arena_Size return Integer is
- Pthread_Arena_Size : constant GNAT.OS_Lib.String_Access :=
- GNAT.OS_Lib.Getenv ("PTHREAD_ARENA_SIZE");
-
- begin
- if Pthread_Arena_Size.all'Length = 0 then
- return Default_Pthread_Arena_Size;
- else
- return Integer'Value (Pthread_Arena_Size.all);
- end if;
- exception
- when others =>
- return Default_Pthread_Arena_Size;
- end Pthread_Arena_Size;
-
- -------------------------
- -- Os_Default_Priority --
- -------------------------
-
- function Os_Default_Priority return Integer is
- begin
- return Default_Os_Default_Priority;
- end Os_Default_Priority;
-
-end System.Program_Info;
projects / msp430-gcc.git / blobdiff