1 //===-- Implementation of abort -------------------------------------------===// 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/__support/common.h" 10 #include "src/signal/raise.h" 11 #include "src/stdlib/_Exit.h" 12 13 #include "src/stdlib/abort.h" 14 15 namespace LIBC_NAMESPACE { 16 17 LLVM_LIBC_FUNCTION(void, abort, ()) { 18 // TODO: When sigprocmask and sigaction land: 19 // Unblock SIGABRT, raise it, if it was ignored or the handler returned, 20 // change its action to SIG_DFL, raise it again. 21 // TODO: When C11 mutexes land: 22 // Acquire recursive mutex (in case the current signal handler for SIGABRT 23 // itself calls abort we don't want to deadlock on the same thread trying 24 // to acquire it's own mutex.) 25 LIBC_NAMESPACE::raise(SIGABRT); 26 LIBC_NAMESPACE::raise(SIGKILL); 27 LIBC_NAMESPACE::_Exit(127); 28 } 29 30 } // namespace LIBC_NAMESPACE 31