1//===-- Implementation of sigsetjmp_epilogue ------------------------------===//
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-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "src/setjmp/sigsetjmp_epilogue.h"
10#include "src/__support/OSUtil/syscall.h"
11#include "src/__support/common.h"
12#include "src/signal/sigprocmask.h"
13
14namespace LIBC_NAMESPACE_DECL {
15[[gnu::returns_twice]] int sigsetjmp_epilogue(jmp_buf buffer, int retval) {
16 syscall_impl<long>(sigprocmask, SIG_SETMASK,
17 /* set= */ retval ? &buffer->sigmask : nullptr,
18 /* old_set= */ retval ? nullptr : &buffer->sigmask);
19 return retval;
20}
21} // namespace LIBC_NAMESPACE_DECL
22

source code of libc/src/setjmp/darwin/sigsetjmp_epilogue.cpp