1*349cc55cSDimitry Andric //===----------------------------------------------------------------------===// 20b57cec5SDimitry Andric // 30b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 40b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 50b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 60b57cec5SDimitry Andric // 70b57cec5SDimitry Andric // 80b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 90b57cec5SDimitry Andric 100b57cec5SDimitry Andric #ifndef __UNWIND_EHABI_H__ 110b57cec5SDimitry Andric #define __UNWIND_EHABI_H__ 120b57cec5SDimitry Andric 130b57cec5SDimitry Andric #include <__libunwind_config.h> 140b57cec5SDimitry Andric 150b57cec5SDimitry Andric #if defined(_LIBUNWIND_ARM_EHABI) 160b57cec5SDimitry Andric 170b57cec5SDimitry Andric #include <stdint.h> 180b57cec5SDimitry Andric #include <unwind.h> 190b57cec5SDimitry Andric 200b57cec5SDimitry Andric // Unable to unwind in the ARM index table (section 5 EHABI). 210b57cec5SDimitry Andric #define UNW_EXIDX_CANTUNWIND 0x1 220b57cec5SDimitry Andric signExtendPrel31(uint32_t data)230b57cec5SDimitry Andricstatic inline uint32_t signExtendPrel31(uint32_t data) { 240b57cec5SDimitry Andric return data | ((data & 0x40000000u) << 1); 250b57cec5SDimitry Andric } 260b57cec5SDimitry Andric readPrel31(const uint32_t * data)270b57cec5SDimitry Andricstatic inline uint32_t readPrel31(const uint32_t *data) { 280b57cec5SDimitry Andric return (((uint32_t)(uintptr_t)data) + signExtendPrel31(*data)); 290b57cec5SDimitry Andric } 300b57cec5SDimitry Andric 310b57cec5SDimitry Andric #if defined(__cplusplus) 320b57cec5SDimitry Andric extern "C" { 330b57cec5SDimitry Andric #endif 340b57cec5SDimitry Andric 350b57cec5SDimitry Andric extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr0( 360b57cec5SDimitry Andric _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context); 370b57cec5SDimitry Andric 380b57cec5SDimitry Andric extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr1( 390b57cec5SDimitry Andric _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context); 400b57cec5SDimitry Andric 410b57cec5SDimitry Andric extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr2( 420b57cec5SDimitry Andric _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context); 430b57cec5SDimitry Andric 440b57cec5SDimitry Andric #if defined(__cplusplus) 450b57cec5SDimitry Andric } // extern "C" 460b57cec5SDimitry Andric #endif 470b57cec5SDimitry Andric 480b57cec5SDimitry Andric #endif // defined(_LIBUNWIND_ARM_EHABI) 490b57cec5SDimitry Andric 500b57cec5SDimitry Andric #endif // __UNWIND_EHABI_H__ 51