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Diffstat (limited to 'gcc-4.8/gcc/ada/s-intman-susv3.adb')
| -rw-r--r-- | gcc-4.8/gcc/ada/s-intman-susv3.adb | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/gcc-4.8/gcc/ada/s-intman-susv3.adb b/gcc-4.8/gcc/ada/s-intman-susv3.adb deleted file mode 100644 index 864d7e1d2..000000000 --- a/gcc-4.8/gcc/ada/s-intman-susv3.adb +++ /dev/null @@ -1,170 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- --- -- --- S Y S T E M . I N T E R R U P T _ M A N A G E M E N T -- --- -- --- B o d y -- --- -- --- Copyright (C) 1992-2009, Free Software Foundation, Inc. -- --- -- --- GNARL 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 -- --- <http://www.gnu.org/licenses/>. -- --- -- --- GNARL was developed by the GNARL team at Florida State University. -- --- Extensive contributions were provided by Ada Core Technologies, Inc. -- --- -- ------------------------------------------------------------------------------- - --- This is the SuSV3 threads version of this package - --- Make a careful study of all signals available under the OS, to see which --- need to be reserved, kept always unmasked, or kept always unmasked. Be on --- the lookout for special signals that may be used by the thread library. - --- Since this is a multi target file, the signal <-> exception mapping --- is simple minded. If you need a more precise and target specific --- signal handling, create a new s-intman.adb that will fit your needs. - --- This file assumes that: - --- SIGINT exists and will be kept unmasked unless the pragma --- Unreserve_All_Interrupts is specified anywhere in the application. - --- System.OS_Interface contains the following: --- SIGADAABORT: the signal that will be used to abort tasks. --- Unmasked: the OS specific set of signals that should be unmasked in --- all the threads. SIGADAABORT is unmasked by --- default --- Reserved: the OS specific set of signals that are reserved. - -package body System.Interrupt_Management is - - use Interfaces.C; - use System.OS_Interface; - - Unreserve_All_Interrupts : Interfaces.C.int; - pragma Import - (C, Unreserve_All_Interrupts, "__gl_unreserve_all_interrupts"); - - ----------------------- - -- Local Subprograms -- - ----------------------- - - function State (Int : Interrupt_ID) return Character; - pragma Import (C, State, "__gnat_get_interrupt_state"); - -- Get interrupt state. Defined in init.c The input argument is the - -- interrupt number, and the result is one of the following: - - User : constant Character := 'u'; - Runtime : constant Character := 'r'; - Default : constant Character := 's'; - -- 'n' this interrupt not set by any Interrupt_State pragma - -- 'u' Interrupt_State pragma set state to User - -- 'r' Interrupt_State pragma set state to Runtime - -- 's' Interrupt_State pragma set state to System (use "default" - -- system handler) - - ---------------- - -- Initialize -- - ---------------- - - Initialized : Boolean := False; - - procedure Initialize is - begin - if Initialized then - return; - end if; - - Initialized := True; - - -- Need to call pthread_init very early because it is doing signal - -- initializations. - - pthread_init; - - Abort_Task_Interrupt := SIGADAABORT; - - pragma Assert (Keep_Unmasked = (Interrupt_ID'Range => False)); - pragma Assert (Reserve = (Interrupt_ID'Range => False)); - - -- Process state of exception signals - - for J in Exception_Signals'Range loop - declare - Sig : constant Signal := Exception_Signals (J); - Id : constant Interrupt_ID := Interrupt_ID (Sig); - begin - if State (Id) /= User then - Keep_Unmasked (Id) := True; - Reserve (Id) := True; - end if; - end; - end loop; - - if State (Abort_Task_Interrupt) /= User then - Keep_Unmasked (Abort_Task_Interrupt) := True; - Reserve (Abort_Task_Interrupt) := True; - end if; - - -- Set SIGINT to unmasked state as long as it is not in "User" state. - -- Check for Unreserve_All_Interrupts last. - - if State (SIGINT) /= User then - Keep_Unmasked (SIGINT) := True; - Reserve (SIGINT) := True; - end if; - - -- Check all signals for state that requires keeping them unmasked and - -- reserved. - - for J in Interrupt_ID'Range loop - if State (J) = Default or else State (J) = Runtime then - Keep_Unmasked (J) := True; - Reserve (J) := True; - end if; - end loop; - - -- Add the set of signals that must always be unmasked for this target - - for J in Unmasked'Range loop - Keep_Unmasked (Interrupt_ID (Unmasked (J))) := True; - Reserve (Interrupt_ID (Unmasked (J))) := True; - end loop; - - -- Add target-specific reserved signals - - for J in Reserved'Range loop - Reserve (Interrupt_ID (Reserved (J))) := True; - end loop; - - -- Process pragma Unreserve_All_Interrupts. This overrides any settings - -- due to pragma Interrupt_State: - - if Unreserve_All_Interrupts /= 0 then - Keep_Unmasked (SIGINT) := False; - Reserve (SIGINT) := False; - end if; - - -- We do not really have Signal 0. We just use this value to identify - -- non-existent signals (see s-intnam.ads). Therefore, Signal should not - -- be used in all signal related operations hence mark it as reserved. - - Reserve (0) := True; - end Initialize; - -end System.Interrupt_Management; |