1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "thread_utils.h" 18 19 #if defined(__APPLE__) 20 21 #include <sys/syscall.h> 22 23 // Mac OS >= 10.6 has a system call equivalent to Linux's gettid(). 24 pid_t gettid() { 25 return syscall(SYS_thread_selfid); 26 } 27 28 #elif !defined(__BIONIC__) 29 30 // glibc doesn't implement or export either gettid or tgkill. 31 #include <unistd.h> 32 #include <sys/syscall.h> 33 34 pid_t gettid() { 35 return syscall(__NR_gettid); 36 } 37 38 int tgkill(int tgid, int tid, int sig) { 39 return syscall(__NR_tgkill, tgid, tid, sig); 40 } 41 42 #endif 43
