1 //===-- Linux implementation of sigaddset ---------------------------------===// 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/signal/sigaddset.h" 10 11 #include "hdr/types/sigset_t.h" 12 #include "src/__support/common.h" 13 #include "src/errno/libc_errno.h" 14 #include "src/signal/linux/signal_utils.h" 15 16 namespace LIBC_NAMESPACE { 17 18 LLVM_LIBC_FUNCTION(int, sigaddset, (sigset_t * set, int signum)) { 19 if (set != nullptr && add_signal(*set, signum)) 20 return 0; 21 libc_errno = EINVAL; 22 return -1; 23 } 24 25 } // namespace LIBC_NAMESPACE 26