libc/src/unistd/linux/getpid.cpp

   1 //===-- Linux implementation of getpid ------------------------------------===//
   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/unistd/getpid.h"
  10
  11 #include "src/__support/OSUtil/syscall.h" // For internal syscall function.
  12 #include "src/__support/common.h"
  13
  14 #include <sys/syscall.h> // For syscall numbers.
  15
  16 namespace LIBC_NAMESPACE {
  17
  18 LLVM_LIBC_FUNCTION(pid_t, getpid, ()) {
  19   return LIBC_NAMESPACE::syscall_impl<pid_t>(SYS_getpid);
  20 }
  21
  22 } // namespace LIBC_NAMESPACE