| 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 | |
| 14 | namespace 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 | |