| 1 | // -*- C++ -*- |
|---|
| 2 | //===----------------------------------------------------------------------===// |
|---|
| 3 | // |
|---|
| 4 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
|---|
| 5 | // See https://llvm.org/LICENSE.txt for license information. |
|---|
| 6 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
|---|
| 7 | // |
|---|
| 8 | //===----------------------------------------------------------------------===// |
|---|
| 9 | |
|---|
| 10 | // The Itanium ABI requires that _Unwind_Exception objects are "double-word |
|---|
| 11 | // aligned". |
|---|
| 12 | |
|---|
| 13 | #include <unwind.h> |
|---|
| 14 | |
|---|
| 15 | // EHABI : 8-byte aligned |
|---|
| 16 | // itanium: largest supported alignment for the system |
|---|
| 17 | #if defined(_LIBUNWIND_ARM_EHABI) |
|---|
| 18 | static_assert(alignof(_Unwind_Control_Block) == 8, |
|---|
| 19 | "_Unwind_Control_Block must be double-word aligned" ); |
|---|
| 20 | #else |
|---|
| 21 | struct MaxAligned {} __attribute__((__aligned__)); |
|---|
| 22 | static_assert(alignof(_Unwind_Exception) == alignof(MaxAligned), |
|---|
| 23 | "_Unwind_Exception must be maximally aligned" ); |
|---|
| 24 | #endif |
|---|
| 25 | |
|---|
