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1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//8//===----------------------------------------------------------------------===//9 10#ifndef __UNWIND_EHABI_H__11#define __UNWIND_EHABI_H__12 13#include <__libunwind_config.h>14 15#if defined(_LIBUNWIND_ARM_EHABI)16 17#include <stdint.h>18#include <unwind.h>19 20// Unable to unwind in the ARM index table (section 5 EHABI).21#define UNW_EXIDX_CANTUNWIND 0x122 23static inline uint32_t signExtendPrel31(uint32_t data) {24 return data | ((data & 0x40000000u) << 1);25}26 27static inline uint32_t readPrel31(const uint32_t *data) {28 return (((uint32_t)(uintptr_t)data) + signExtendPrel31(*data));29}30 31#if defined(__cplusplus)32extern "C" {33#endif34 35extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr0(36 _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context);37 38extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr1(39 _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context);40 41extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr2(42 _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context);43 44#if defined(__cplusplus)45} // extern "C"46#endif47 48#endif // defined(_LIBUNWIND_ARM_EHABI)49 50#endif // __UNWIND_EHABI_H__51