29 lines · cpp
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-exception6//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/__support/macros/config.h"14#include "src/signal/linux/signal_utils.h"15 16namespace LIBC_NAMESPACE_DECL {17 18LLVM_LIBC_FUNCTION(int, raise, (int sig)) {19 sigset_t sigset;20 block_all_signals(sigset);21 long pid = LIBC_NAMESPACE::syscall_impl<long>(SYS_getpid);22 long tid = LIBC_NAMESPACE::syscall_impl<long>(SYS_gettid);23 int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_tgkill, pid, tid, sig);24 restore_signals(sigset);25 return ret;26}27 28} // namespace LIBC_NAMESPACE_DECL29