commit 6948f04e35623491a506e6971b28d1b331082057
author Christopher N. Hesse <raymanfx@gmail.com> Sat Sep 17 18:29:03 2016 +0200
committer Christopher N. Hesse <raymanfx@gmail.com> Sun Oct 22 22:58:41 2017 +0200
tree 1aedc8e860e8a751eded7bd48c4201f737103e43
parent d78de69e60ed2aef61feca1a8282bfbf59ce86f8

libcutils: Fix thread ID on macOS

macOS 10.12 / Xcode 8 actively prohibit the syscall(2)
usage.

Change-Id: I91ff16600a76e97d0b9b5db7e8905b969fb3482f

base/logging.cpp

diff --git a/base/logging.cpp b/base/logging.cpp
index 6357b4b..75078e5 100644
--- a/base/logging.cpp
+++ b/base/logging.cpp
@@ -80,7 +80,9 @@
 #if defined(__BIONIC__)
   return gettid();
 #elif defined(__APPLE__)
-  return syscall(SYS_thread_selfid);
+  uint64_t tid;
+  pthread_threadid_np(NULL, &tid);
+  return tid;
 #elif defined(__linux__)
   return syscall(__NR_gettid);
 #elif defined(_WIN32)

libcutils/threads.c

diff --git a/libcutils/threads.c b/libcutils/threads.c
index 036f8c5..4bae39e 100644
--- a/libcutils/threads.c
+++ b/libcutils/threads.c
@@ -35,7 +35,9 @@
 #ifndef __ANDROID__
 pid_t gettid() {
 #if defined(__APPLE__)
-  return syscall(SYS_thread_selfid);
+  uint64_t tid;
+  pthread_threadid_np(NULL, &tid);
+  return tid;
 #elif defined(__linux__)
   return syscall(__NR_gettid);
 #elif defined(_WIN32)