root/tools/perf/include/bpf/unistd.h

INCLUDED FROM

DEFINITIONS

1. getpid

   1 // SPDX-License-Identifier: LGPL-2.1
   2 
   3 #include <bpf.h>
   4 
   5 static int (*bpf_get_current_pid_tgid)(void) = (void *)BPF_FUNC_get_current_pid_tgid;
   6 
   7 static pid_t getpid(void)
   8 {
   9         return bpf_get_current_pid_tgid();
  10 }