1// Copyright (C) 2012 The Android Open Source Project 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions 6// are met: 7// 1. Redistributions of source code must retain the above copyright 8// notice, this list of conditions and the following disclaimer. 9// 2. Redistributions in binary form must reproduce the above copyright 10// notice, this list of conditions and the following disclaimer in the 11// documentation and/or other materials provided with the distribution. 12// 3. Neither the name of the project nor the names of its contributors 13// may be used to endorse or promote products derived from this software 14// without specific prior written permission. 15// 16// THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 17// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19// ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 20// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26// SUCH DAMAGE. 27 28#ifndef __GABIXX_UNWIND_ITANIUM_H__ 29#define __GABIXX_UNWIND_ITANIUM_H__ 30 31#include <stdint.h> 32 33#ifdef __cplusplus 34extern "C" { 35#endif 36 37typedef enum { 38 _URC_NO_REASON = 0, 39 _URC_FOREIGN_EXCEPTION_CAUGHT = 1, 40 _URC_FATAL_PHASE2_ERROR = 2, 41 _URC_FATAL_PHASE1_ERROR = 3, 42 _URC_NORMAL_STOP = 4, 43 _URC_END_OF_STACK = 5, 44 _URC_HANDLER_FOUND = 6, 45 _URC_INSTALL_CONTEXT = 7, 46 _URC_CONTINUE_UNWIND = 8 47} _Unwind_Reason_Code; 48 49typedef int _Unwind_Action; 50static const _Unwind_Action _UA_SEARCH_PHASE = 1; 51static const _Unwind_Action _UA_CLEANUP_PHASE = 2; 52static const _Unwind_Action _UA_HANDLER_FRAME = 4; 53static const _Unwind_Action _UA_FORCE_UNWIND = 8; 54 55struct _Unwind_Context; // system-specific opaque 56struct _Unwind_Exception; 57 58typedef void (*_Unwind_Exception_Cleanup_Fn) (_Unwind_Reason_Code reason, 59 struct _Unwind_Exception* exc); 60 61typedef _Unwind_Reason_Code (*_Unwind_Stop_Fn) (int version, 62 _Unwind_Action actions, 63 uint64_t exceptionClass, 64 struct _Unwind_Exception*, 65 struct _Unwind_Context*, 66 void* stop_parameter); 67 68struct _Unwind_Exception { 69 uint64_t exception_class; 70 _Unwind_Exception_Cleanup_Fn exception_cleanup; 71 uint32_t private_1; 72 uint32_t private_2; 73} 74#if defined(__clang__) && defined(__mips__) 75// FIXME: It seems that mipsel-linux-android-gcc will use 24 as the object size 76// with or without the aligned attribute. However, clang (mipsel) will align 77// the object size to 32 when we specify the aligned attribute, which may 78// result in some sort of incompatibility. As a workaround, let's remove this 79// attribute when we are compiling this file for MIPS architecture with clang. 80// Add the attribute back when clang can have same behavior as gcc. 81#else 82__attribute__((__aligned__)) // must be double-word aligned 83#endif 84; 85 86_Unwind_Reason_Code _Unwind_RaiseException(struct _Unwind_Exception*); 87void _Unwind_Resume(struct _Unwind_Exception*); 88void _Unwind_DeleteException(struct _Unwind_Exception*); 89 90uint64_t _Unwind_GetGR(struct _Unwind_Context*, int index); 91void _Unwind_SetGR(struct _Unwind_Context*, int index, uint64_t new_value); 92 93uint64_t _Unwind_GetIP(struct _Unwind_Context*); 94void _Unwind_SetIP(struct _Unwind_Context*, uintptr_t new_value); 95 96uint64_t _Unwind_GetRegionStart(struct _Unwind_Context*); 97uint64_t _Unwind_GetLanguageSpecificData(struct _Unwind_Context*); 98 99_Unwind_Reason_Code _Unwind_ForcedUnwind(struct _Unwind_Exception*, 100 _Unwind_Stop_Fn stop, 101 void* stop_parameter); 102 103_Unwind_Reason_Code _Unwind_RaiseException(struct _Unwind_Exception*); 104void _Unwind_Resume(struct _Unwind_Exception*); 105void _Unwind_DeleteException(struct _Unwind_Exception*); 106 107#ifdef __cplusplus 108} // extern "C" 109#endif 110 111#endif // __GABIXX_UNWIND_ITANIUM_H__ 112