| // Copyright (C) 2012 The Android Open Source Project |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions |
| // are met: |
| // 1. Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // 2. Redistributions in binary form must reproduce the above copyright |
| // notice, this list of conditions and the following disclaimer in the |
| // documentation and/or other materials provided with the distribution. |
| // 3. Neither the name of the project nor the names of its contributors |
| // may be used to endorse or promote products derived from this software |
| // without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
| // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| // ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
| // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| // OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| // HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| // OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| // SUCH DAMAGE. |
| |
| #ifndef __GXXABI_HELPER_FUNC_INTERNAL_H |
| #define __GXXABI_HELPER_FUNC_INTERNAL_H |
| |
| #include <cxxabi.h> |
| #include <exception> |
| #include <unwind.h> |
| #include "dwarf_helper.h" |
| |
| // Target-independent helper functions |
| namespace __cxxabiv1 { |
| |
| void call_terminate(_Unwind_Exception* unwind_exception); |
| |
| #if __arm__ |
| uint32_t decodeRelocTarget2 (uint32_t ptr); |
| #endif |
| |
| const std::type_info* getTypePtr(uint64_t ttypeIndex, |
| const uint8_t* classInfo, |
| uint8_t ttypeEncoding, |
| _Unwind_Exception* unwind_exception); |
| |
| // An exception spec acts like a catch handler, but in reverse. |
| // If any catchType in the list can catch an excpType, |
| // then this exception spec does not catch the excpType. |
| bool canExceptionSpecCatch(int64_t specIndex, |
| const uint8_t* classInfo, |
| uint8_t ttypeEncoding, |
| const std::type_info* excpType, |
| void* adjustedPtr, |
| _Unwind_Exception* unwind_exception); |
| |
| void setRegisters(_Unwind_Exception* unwind_exception, |
| _Unwind_Context* context, |
| const ScanResultInternal& results); |
| |
| _Unwind_Reason_Code continueUnwinding(_Unwind_Exception *ex, |
| _Unwind_Context *context); |
| |
| void saveDataToBarrierCache(_Unwind_Exception* exc, |
| _Unwind_Context* ctx, |
| const ScanResultInternal& results); |
| |
| void loadDataFromBarrierCache(_Unwind_Exception* exc, |
| ScanResultInternal& results); |
| |
| void prepareBeginCleanup(_Unwind_Exception* exc); |
| |
| void saveUnexpectedDataToBarrierCache(_Unwind_Exception* exc, |
| _Unwind_Context* ctx, |
| const ScanResultInternal& results); |
| |
| void scanEHTable(ScanResultInternal& results, |
| _Unwind_Action actions, |
| bool native_exception, |
| _Unwind_Exception* unwind_exception, |
| _Unwind_Context* context); |
| |
| // Make it easier to adapt to Itanium PR |
| #ifdef __arm__ |
| # define BEGIN_DEFINE_PERSONALITY_FUNC \ |
| __gxx_personality_v0(_Unwind_State state, \ |
| _Unwind_Exception* unwind_exception, \ |
| _Unwind_Context* context) { \ |
| int version = 1; \ |
| uint64_t exceptionClass = unwind_exception->exception_class; \ |
| _Unwind_Action actions = 0; \ |
| switch (state) { \ |
| default: { \ |
| return _URC_FAILURE; \ |
| } \ |
| case _US_VIRTUAL_UNWIND_FRAME: { \ |
| actions = _UA_SEARCH_PHASE; \ |
| break; \ |
| } \ |
| case _US_UNWIND_FRAME_STARTING: { \ |
| actions = _UA_CLEANUP_PHASE; \ |
| if (unwind_exception->barrier_cache.sp == _Unwind_GetGR(context, UNWIND_STACK_REG)) { \ |
| actions |= _UA_HANDLER_FRAME; \ |
| } \ |
| break; \ |
| } \ |
| case _US_UNWIND_FRAME_RESUME: { \ |
| return continueUnwinding(unwind_exception, context); \ |
| break; \ |
| } \ |
| } \ |
| _Unwind_SetGR (context, UNWIND_POINTER_REG, reinterpret_cast<uint32_t>(unwind_exception)); |
| #else // ! __arm__ |
| # define BEGIN_DEFINE_PERSONALITY_FUNC \ |
| __gxx_personality_v0(int version, _Unwind_Action actions, uint64_t exceptionClass, \ |
| _Unwind_Exception* unwind_exception, _Unwind_Context* context) { |
| #endif |
| |
| // Print an error message to either stderr or the log. Then calls |
| // std::terminate(). Note: This always appends a newline to the message. |
| void fatalError(const char* message); |
| |
| } // namespace __cxxabiv1 |
| |
| #endif // __GXXABI_HELPER_FUNC_INTERNAL_H |