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Unified Diff: gcc/libstdc++-v3/libsupc++/eh_arm.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_arm.cc
diff --git a/gcc/libstdc++-v3/libsupc++/eh_arm.cc b/gcc/libstdc++-v3/libsupc++/eh_arm.cc
deleted file mode 100644
index 58997cc17683c2af17bb90540ec3b768f3d854e6..0000000000000000000000000000000000000000
--- a/gcc/libstdc++-v3/libsupc++/eh_arm.cc
+++ /dev/null
@@ -1,178 +0,0 @@
-// -*- C++ -*- ARM specific Exception handling support routines.
-// Copyright (C) 2004, 2005, 2008, 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 <cxxabi.h>
-#include "unwind-cxx.h"
-
-#ifdef __ARM_EABI_UNWINDER__
-
-using namespace __cxxabiv1;
-
-
-// Given the thrown type THROW_TYPE, pointer to a variable containing a
-// pointer to the exception object THROWN_PTR_P and a type CATCH_TYPE to
-// compare against, return whether or not there is a match and if so,
-// update *THROWN_PTR_P.
-
-extern "C" __cxa_type_match_result
-__cxa_type_match(_Unwind_Exception* ue_header,
- const std::type_info* catch_type,
- bool is_reference __attribute__((__unused__)),
- void** thrown_ptr_p)
-{
- bool forced_unwind = __is_gxx_forced_unwind_class(ue_header->exception_class);
- bool foreign_exception = !forced_unwind && !__is_gxx_exception_class(ue_header->exception_class);
- bool dependent_exception =
- __is_dependent_exception(ue_header->exception_class);
- __cxa_exception* xh = __get_exception_header_from_ue(ue_header);
- __cxa_dependent_exception *dx = __get_dependent_exception_from_ue(ue_header);
- const std::type_info* throw_type;
-
- if (forced_unwind)
- throw_type = &typeid(abi::__forced_unwind);
- else if (foreign_exception)
- throw_type = &typeid(abi::__foreign_exception);
- else if (dependent_exception)
- throw_type = __get_exception_header_from_obj
- (dx->primaryException)->exceptionType;
- else
- throw_type = xh->exceptionType;
-
- void* thrown_ptr = *thrown_ptr_p;
-
- // Pointer types need to adjust the actual pointer, not
- // the pointer to pointer that is the exception object.
- // This also has the effect of passing pointer types
- // "by value" through the __cxa_begin_catch return value.
- if (throw_type->__is_pointer_p())
- thrown_ptr = *(void**) thrown_ptr;
-
- if (catch_type->__do_catch(throw_type, &thrown_ptr, 1))
- {
- *thrown_ptr_p = thrown_ptr;
-
- if (typeid(*catch_type) == typeid (typeid(void*)))
- {
- const __pointer_type_info *catch_pointer_type =
- static_cast<const __pointer_type_info *> (catch_type);
- const __pointer_type_info *throw_pointer_type =
- static_cast<const __pointer_type_info *> (throw_type);
-
- if (typeid (*catch_pointer_type->__pointee) != typeid (void)
- && (*catch_pointer_type->__pointee !=
- *throw_pointer_type->__pointee))
- return ctm_succeeded_with_ptr_to_base;
- }
-
- return ctm_succeeded;
- }
-
- return ctm_failed;
-}
-
-// ABI defined routine called at the start of a cleanup handler.
-extern "C" bool
-__cxa_begin_cleanup(_Unwind_Exception* ue_header)
-{
- __cxa_eh_globals *globals = __cxa_get_globals();
- __cxa_exception *header = __get_exception_header_from_ue(ue_header);
- bool native = __is_gxx_exception_class(header->unwindHeader.exception_class);
-
-
- if (native)
- {
- header->propagationCount++;
- // Add it to the chain if this is the first time we've seen this
- // exception.
- if (header->propagationCount == 1)
- {
- header->nextPropagatingException = globals->propagatingExceptions;
- globals->propagatingExceptions = header;
- }
- }
- else
- {
- // Remember the exception object, so end_cleanup can return it.
- // These cannot be stacked, so we must abort if we already have
- // a propagating exception.
- if (globals->propagatingExceptions)
- std::terminate ();
- globals->propagatingExceptions = header;
- }
-
- return true;
-}
-
-// Do the work for __cxa_end_cleanup. Returns the currently propagating
-// exception object.
-extern "C" _Unwind_Exception *
-__gnu_end_cleanup(void)
-{
- __cxa_exception *header;
- __cxa_eh_globals *globals = __cxa_get_globals();
-
- header = globals->propagatingExceptions;
-
- // Check something hasn't gone horribly wrong.
- if (!header)
- std::terminate();
-
- if (__is_gxx_exception_class(header->unwindHeader.exception_class))
- {
- header->propagationCount--;
- if (header->propagationCount == 0)
- {
- // Remove exception from chain.
- globals->propagatingExceptions = header->nextPropagatingException;
- header->nextPropagatingException = NULL;
- }
- }
- else
- globals->propagatingExceptions = NULL;
-
- return &header->unwindHeader;
-}
-
-// Assembly wrapper to call __gnu_end_cleanup without clobbering r1-r3.
-// Also push r4 to preserve stack alignment.
-#ifdef __thumb__
-asm (".global __cxa_end_cleanup\n"
-" .type __cxa_end_cleanup, \"function\"\n"
-" .thumb_func\n"
-"__cxa_end_cleanup:\n"
-" push\t{r1, r2, r3, r4}\n"
-" bl\t__gnu_end_cleanup\n"
-" pop\t{r1, r2, r3, r4}\n"
-" bl\t_Unwind_Resume @ Never returns\n");
-#else
-asm (".global __cxa_end_cleanup\n"
-" .type __cxa_end_cleanup, \"function\"\n"
-"__cxa_end_cleanup:\n"
-" stmfd\tsp!, {r1, r2, r3, r4}\n"
-" bl\t__gnu_end_cleanup\n"
-" ldmfd\tsp!, {r1, r2, r3, r4}\n"
-" bl\t_Unwind_Resume @ Never returns\n");
-#endif
-
-#endif
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