mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-25 07:56:06 +00:00
504bc07d1a
This is needed when running the tests in Freestanding mode, where main() isn't treated specially. In Freestanding, main() doesn't get mangled as extern "C", so whatever runtime we're using fails to find the entry point. One way to solve this problem is to define a symbol alias from __Z4mainiPPc to _main, however this requires all definitions of main() to have the same mangling. Hence this commit.
25 lines
922 B
C++
25 lines
922 B
C++
// -*- C++ -*-
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// The Itanium ABI requires that _Unwind_Exception objects are "double-word
|
|
// aligned".
|
|
|
|
#include <unwind.h>
|
|
|
|
// EHABI : 8-byte aligned
|
|
// itanium: largest supported alignment for the system
|
|
#if defined(_LIBUNWIND_ARM_EHABI)
|
|
static_assert(alignof(_Unwind_Control_Block) == 8,
|
|
"_Unwind_Control_Block must be double-word aligned");
|
|
#else
|
|
struct MaxAligned {} __attribute__((__aligned__));
|
|
static_assert(alignof(_Unwind_Exception) == alignof(MaxAligned),
|
|
"_Unwind_Exception must be maximally aligned");
|
|
#endif
|