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Diffstat (limited to 'gcc-4.2.1/gcc/ada/a-exexpr.adb')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/a-exexpr.adb | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/gcc-4.2.1/gcc/ada/a-exexpr.adb b/gcc-4.2.1/gcc/ada/a-exexpr.adb deleted file mode 100644 index 1a300b57e..000000000 --- a/gcc-4.2.1/gcc/ada/a-exexpr.adb +++ /dev/null @@ -1,127 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT COMPILER COMPONENTS -- --- -- --- A D A . E X C E P T I O N S . E X C E P T I O N _ P R O P A G A T I O N -- --- -- --- B o d y -- --- -- --- Copyright (C) 1992-2006 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, 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, -- --- 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 the default version, using the __builtin_setjmp/longjmp EH --- mechanism. - -with System.Storage_Elements; use System.Storage_Elements; - -pragma Warnings (Off); --- Since several constructs give warnings in 3.14a1, including unreferenced --- variables and pragma Unreferenced itself. - -separate (Ada.Exceptions) -package body Exception_Propagation is - - procedure builtin_longjmp (buffer : Address; Flag : Integer); - pragma No_Return (builtin_longjmp); - pragma Import (C, builtin_longjmp, "_gnat_builtin_longjmp"); - - --------------------- - -- Setup_Exception -- - --------------------- - - procedure Setup_Exception - (Excep : EOA; - Current : EOA; - Reraised : Boolean := False) - is - pragma Unreferenced (Excep, Current, Reraised); - begin - -- In the GNAT-SJLJ case this "stack" only exists implicitely, by way of - -- local occurrence declarations together with save/restore operations - -- generated by the front-end, and this routine has nothing to do. - - null; - end Setup_Exception; - - ------------------------- - -- Propagate_Exception -- - ------------------------- - - procedure Propagate_Exception - (E : Exception_Id; - From_Signal_Handler : Boolean) - is - pragma Inspection_Point (E); - - Jumpbuf_Ptr : constant Address := Get_Jmpbuf_Address.all; - Excep : constant EOA := Get_Current_Excep.all; - begin - -- Compute the backtrace for this occurrence if corresponding binder - -- option has been set. Call_Chain takes care of the reraise case. - - Call_Chain (Excep); - - -- Note on above call to Call_Chain: - - -- We used to only do this if From_Signal_Handler was not set, - -- based on the assumption that backtracing from a signal handler - -- would not work due to stack layout oddities. However, since - - -- 1. The flag is never set in tasking programs (Notify_Exception - -- performs regular raise statements), and - - -- 2. No problem has shown up in tasking programs around here so - -- far, this turned out to be too strong an assumption. - - -- As, in addition, the test was - - -- 1. preventing the production of backtraces in non-tasking - -- programs, and - - -- 2. introducing a behavior inconsistency between - -- the tasking and non-tasking cases, - - -- we have simply removed it - - -- If the jump buffer pointer is non-null, transfer control using - -- it. Otherwise announce an unhandled exception (note that this - -- means that we have no finalizations to do other than at the outer - -- level). Perform the necessary notification tasks in both cases. - - if Jumpbuf_Ptr /= Null_Address then - if not Excep.Exception_Raised then - Excep.Exception_Raised := True; - Exception_Traces.Notify_Handled_Exception; - end if; - - builtin_longjmp (Jumpbuf_Ptr, 1); - - else - Exception_Traces.Notify_Unhandled_Exception; - Exception_Traces.Unhandled_Exception_Terminate; - end if; - end Propagate_Exception; - -end Exception_Propagation; |