1 //===-- Linux implementation of signal ------------------------------------===// 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/raise.h" 10 11 #include "hdr/types/sigset_t.h" 12 #include "src/__support/common.h" 13 #include "src/signal/linux/signal_utils.h" 14 15 namespace LIBC_NAMESPACE { 16 17 LLVM_LIBC_FUNCTION(int, raise, (int sig)) { 18 sigset_t sigset; 19 block_all_signals(sigset); 20 long pid = LIBC_NAMESPACE::syscall_impl<long>(SYS_getpid); 21 long tid = LIBC_NAMESPACE::syscall_impl<long>(SYS_gettid); 22 int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_tgkill, pid, tid, sig); 23 restore_signals(sigset); 24 return ret; 25 } 26 27 } // namespace LIBC_NAMESPACE 28