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Diffstat (limited to 'src/Unwind/Unwind-EHABI.h')
-rw-r--r-- | src/Unwind/Unwind-EHABI.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/Unwind/Unwind-EHABI.h b/src/Unwind/Unwind-EHABI.h new file mode 100644 index 0000000..fdc0d27 --- /dev/null +++ b/src/Unwind/Unwind-EHABI.h @@ -0,0 +1,45 @@ +//===------------------------- Unwind-EHABI.hpp ---------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +// +//===----------------------------------------------------------------------===// + +#ifndef __UNWIND_EHABI_H__ +#define __UNWIND_EHABI_H__ + +#include <stdint.h> +#include <unwind.h> + +// Unable to unwind in the ARM index table (section 5 EHABI). +#define UNW_EXIDX_CANTUNWIND 0x1 + +static inline uint32_t signExtendPrel31(uint32_t data) { + return data | ((data & 0x40000000u) << 1); +} + +static inline uint32_t readPrel31(const uint32_t *data) { + return (((uint32_t) data) + signExtendPrel31(*data)); +} + +#if defined(__cplusplus) +extern "C" { +#endif + +extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr0( + _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context); + +extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr1( + _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context); + +extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr2( + _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context); + +#if defined(__cplusplus) +} // extern "C" +#endif + +#endif // __UNWIND_EHABI_H__ |