diff options
author | Jing Yu <jingyu@google.com> | 2011-12-19 16:56:54 -0800 |
---|---|---|
committer | Jing Yu <jingyu@google.com> | 2011-12-19 16:56:54 -0800 |
commit | 40d7cd0fd78fe2004e2a53c4618c148339b02733 (patch) | |
tree | 5874557a6c86a1f564a03e5f28b266e31bc3759c /gcc-4.6/gcc/ada/g-exctra.ads | |
parent | fe2afdf3f3701489c05d2a7509752d6f0c7616f7 (diff) | |
download | toolchain_gcc-40d7cd0fd78fe2004e2a53c4618c148339b02733.tar.gz toolchain_gcc-40d7cd0fd78fe2004e2a53c4618c148339b02733.tar.bz2 toolchain_gcc-40d7cd0fd78fe2004e2a53c4618c148339b02733.zip |
Add gcc-4.6. Synced to @180989
Change-Id: Ie3676586e1d8e3c8cd9f07d022f450d05fa08439
svn://gcc.gnu.org/svn/gcc/branches/google/gcc-4_6-mobile
Diffstat (limited to 'gcc-4.6/gcc/ada/g-exctra.ads')
-rw-r--r-- | gcc-4.6/gcc/ada/g-exctra.ads | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/gcc-4.6/gcc/ada/g-exctra.ads b/gcc-4.6/gcc/ada/g-exctra.ads new file mode 100644 index 000000000..00b474538 --- /dev/null +++ b/gcc-4.6/gcc/ada/g-exctra.ads @@ -0,0 +1,98 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- G N A T . E X C E P T I O N _ T R A C E S -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 2000-2008, AdaCore -- +-- -- +-- 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 package provides an interface allowing to control *automatic* output +-- to standard error upon exception occurrences (as opposed to explicit +-- generation of traceback information using GNAT.Traceback). + +-- This output includes the basic information associated with the exception +-- (name, message) as well as a backtrace of the call chain at the point +-- where the exception occurred. This backtrace is only output if the call +-- chain information is available, depending if the binder switch dedicated +-- to that purpose has been used or not. + +-- The default backtrace is in the form of absolute code locations which may +-- be converted to corresponding source locations using the addr2line utility +-- or from within GDB. Please refer to GNAT.Traceback for information about +-- what is necessary to be able to exploit this possibility. + +-- The backtrace output can also be customized by way of a "decorator" which +-- may return any string output in association with a provided call chain. +-- The decorator replaces the default backtrace mentioned above. + +with GNAT.Traceback; use GNAT.Traceback; + +package GNAT.Exception_Traces is + + -- The following defines the exact situations in which raises will + -- cause automatic output of trace information. + + type Trace_Kind is + (Every_Raise, + -- Denotes the initial raise event for any exception occurrence, either + -- explicit or due to a specific language rule, within the context of a + -- task or not. + + Unhandled_Raise + -- Denotes the raise events corresponding to exceptions for which there + -- is no user defined handler, in particular, when a task dies due to an + -- unhandled exception. + ); + + -- The following procedures can be used to activate and deactivate + -- traces identified by the above trace kind values. + + procedure Trace_On (Kind : Trace_Kind); + -- Activate the traces denoted by Kind + + procedure Trace_Off; + -- Stop the tracing requested by the last call to Trace_On. + -- Has no effect if no such call has ever occurred. + + -- The following provide the backtrace decorating facilities + + type Traceback_Decorator is access + function (Traceback : Tracebacks_Array) return String; + -- A backtrace decorator is a function which returns the string to be + -- output for a call chain provided by way of a tracebacks array. + + procedure Set_Trace_Decorator (Decorator : Traceback_Decorator); + -- Set the decorator to be used for future automatic outputs. Restore + -- the default behavior (output of raw addresses) if the provided + -- access value is null. + -- + -- Note: GNAT.Traceback.Symbolic.Symbolic_Traceback may be used as the + -- Decorator, to get a symbolic traceback. This will cause a significant + -- cpu and memory overhead. + +end GNAT.Exception_Traces; |