1 //===------------------------- Unwind-EHABI.hpp ---------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 // 9 //===----------------------------------------------------------------------===// 10 11 #ifndef __UNWIND_EHABI_H__ 12 #define __UNWIND_EHABI_H__ 13 14 #include <__libunwind_config.h> 15 16 #if _LIBUNWIND_ARM_EHABI 17 18 #include <stdint.h> 19 #include <unwind.h> 20 21 // Unable to unwind in the ARM index table (section 5 EHABI). 22 #define UNW_EXIDX_CANTUNWIND 0x1 23 24 static inline uint32_t signExtendPrel31(uint32_t data) { 25 return data | ((data & 0x40000000u) << 1); 26 } 27 28 static inline uint32_t readPrel31(const uint32_t *data) { 29 return (((uint32_t)(uintptr_t)data) + signExtendPrel31(*data)); 30 } 31 32 #if defined(__cplusplus) 33 extern "C" { 34 #endif 35 36 extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr0( 37 _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context); 38 39 extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr1( 40 _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context); 41 42 extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr2( 43 _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context); 44 45 #if defined(__cplusplus) 46 } // extern "C" 47 #endif 48 49 #endif // _LIBUNWIND_ARM_EHABI 50 51 #endif // __UNWIND_EHABI_H__ 52
