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Unified Diff: gcc/libstdc++-v3/libsupc++/eh_catch.cc

Issue 3050029: [gcc] GCC 4.5.0=>4.5.1 (Closed) Base URL: ssh://git@gitrw.chromium.org:9222/nacl-toolchain.git
Patch Set: Created 10 years, 5 months ago
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Index: gcc/libstdc++-v3/libsupc++/eh_catch.cc
diff --git a/gcc/libstdc++-v3/libsupc++/eh_catch.cc b/gcc/libstdc++-v3/libsupc++/eh_catch.cc
deleted file mode 100644
index 567222aa5f028fc194d40d640fbefb4a9fb40a06..0000000000000000000000000000000000000000
--- a/gcc/libstdc++-v3/libsupc++/eh_catch.cc
+++ /dev/null
@@ -1,138 +0,0 @@
-// -*- C++ -*- Exception handling routines for catching.
-// Copyright (C) 2001, 2003, 2004, 2009 Free Software Foundation, Inc.
-//
-// This file is part of GCC.
-//
-// GCC is free software; you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation; either version 3, or (at your option)
-// any later version.
-//
-// GCC is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// 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/>.
-
-#include <cstdlib>
-#include "unwind-cxx.h"
-
-using namespace __cxxabiv1;
-
-extern "C" void *
-__cxxabiv1::__cxa_get_exception_ptr(void *exc_obj_in) throw()
-{
- _Unwind_Exception *exceptionObject
- = reinterpret_cast <_Unwind_Exception *>(exc_obj_in);
-
- return __gxx_caught_object(exceptionObject);
-}
-
-extern "C" void *
-__cxxabiv1::__cxa_begin_catch (void *exc_obj_in) throw()
-{
- _Unwind_Exception *exceptionObject
- = reinterpret_cast <_Unwind_Exception *>(exc_obj_in);
- __cxa_eh_globals *globals = __cxa_get_globals ();
- __cxa_exception *prev = globals->caughtExceptions;
- __cxa_exception *header = __get_exception_header_from_ue (exceptionObject);
- void* objectp;
-
- // Foreign exceptions can't be stacked here. If the exception stack is
- // empty, then fine. Otherwise we really have no choice but to terminate.
- // Note that this use of "header" is a lie. It's fine so long as we only
- // examine header->unwindHeader though.
- if (!__is_gxx_exception_class(header->unwindHeader.exception_class))
- {
- if (prev != 0)
- std::terminate ();
-
- // Remember for end_catch and rethrow.
- globals->caughtExceptions = header;
-
- // ??? No sensible value to return; we don't know what the
- // object is, much less where it is in relation to the header.
- return 0;
- }
-
- int count = header->handlerCount;
- // Count is less than zero if this exception was rethrown from an
- // immediately enclosing region.
- if (count < 0)
- count = -count + 1;
- else
- count += 1;
- header->handlerCount = count;
- globals->uncaughtExceptions -= 1;
-
- if (header != prev)
- {
- header->nextException = prev;
- globals->caughtExceptions = header;
- }
-
- objectp = __gxx_caught_object(exceptionObject);
-#ifdef __ARM_EABI_UNWINDER__
- _Unwind_Complete(exceptionObject);
-#endif
- return objectp;
-}
-
-
-extern "C" void
-__cxxabiv1::__cxa_end_catch ()
-{
- __cxa_eh_globals *globals = __cxa_get_globals_fast ();
- __cxa_exception *header = globals->caughtExceptions;
-
- // A rethrow of a foreign exception will be removed from the
- // the exception stack immediately by __cxa_rethrow.
- if (!header)
- return;
-
- // A foreign exception couldn't have been stacked (see above),
- // so by definition processing must be complete.
- if (!__is_gxx_exception_class(header->unwindHeader.exception_class))
- {
- globals->caughtExceptions = 0;
- _Unwind_DeleteException (&header->unwindHeader);
- return;
- }
-
- int count = header->handlerCount;
- if (count < 0)
- {
- // This exception was rethrown. Decrement the (inverted) catch
- // count and remove it from the chain when it reaches zero.
- if (++count == 0)
- globals->caughtExceptions = header->nextException;
- }
- else if (--count == 0)
- {
- // Handling for this exception is complete. Destroy the object.
- globals->caughtExceptions = header->nextException;
- _Unwind_DeleteException (&header->unwindHeader);
- return;
- }
- else if (count < 0)
- // A bug in the exception handling library or compiler.
- std::terminate ();
-
- header->handlerCount = count;
-}
-
-
-bool
-std::uncaught_exception() throw()
-{
- __cxa_eh_globals *globals = __cxa_get_globals ();
- return globals->uncaughtExceptions != 0;
-}
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