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
15namespace LIBC_NAMESPACE {
16
17LLVM_LIBC_FUNCTION(int, raise, (int sig)) {
18 sigset_t sigset;
19 block_all_signals(set&: 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, ts: pid, ts: tid, ts: sig);
23 restore_signals(set: sigset);
24 return ret;
25}
26
27} // namespace LIBC_NAMESPACE
28

source code of libc/src/signal/linux/raise.cpp