xref: /aosp_15_r20/external/llvm-libc/src/signal/linux/raise.cpp (revision 71db0c75aadcf003ffe3238005f61d7618a3fead)

//===-- Linux implementation of signal ------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "src/signal/raise.h"

#include "hdr/types/sigset_t.h"
#include "src/__support/common.h"
#include "src/__support/macros/config.h"
#include "src/signal/linux/signal_utils.h"

namespace LIBC_NAMESPACE_DECL {

LLVM_LIBC_FUNCTION(int, raise, (int sig)) {
  sigset_t sigset;
  block_all_signals(sigset);
  long pid = LIBC_NAMESPACE::syscall_impl<long>(SYS_getpid);
  long tid = LIBC_NAMESPACE::syscall_impl<long>(SYS_gettid);
  int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_tgkill, pid, tid, sig);
  restore_signals(sigset);
  return ret;
}

} // namespace LIBC_NAMESPACE_DECL