From 329f9cd9fe4d41afa2986dbf358339b7a48d044b Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@musicpd.org>
Date: Thu, 4 Jan 2018 19:19:16 +0100
Subject: [PATCH] thread/Util: no ioprio_set() on Android due to seccomp/SIGSYS

---
 NEWS                | 1 +
 src/thread/Util.cxx | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/NEWS b/NEWS
index a6532fe62..e87043daa 100644
--- a/NEWS
+++ b/NEWS
@@ -6,6 +6,7 @@ ver 0.20.15 (not yet released)
   - fix crash when restoring mounts with incompatible database plugin
 * Android
   - build without Ant
+  - fix for SIGSYS crash
 
 ver 0.20.14 (2018/01/01)
 * database
diff --git a/src/thread/Util.cxx b/src/thread/Util.cxx
index 6213d9777..c4c93f82e 100644
--- a/src/thread/Util.cxx
+++ b/src/thread/Util.cxx
@@ -38,7 +38,7 @@
 #include <windows.h>
 #endif
 
-#ifdef __linux__
+#if defined(__linux__) && !defined(ANDROID)
 
 static int
 ioprio_set(int which, int who, int ioprio)
@@ -69,7 +69,11 @@ SetThreadIdlePriority()
 	sched_setscheduler(0, SCHED_IDLE, &sched_param);
 #endif
 
+#ifndef ANDROID
+	/* this system call is forbidden via seccomp on Android 8 and
+	   leads to crash (SIGSYS) */
 	ioprio_set_idle();
+#endif
 
 #elif defined(_WIN32)
 	SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_IDLE);