Running Bluedroid on Android under valgrind

Question

I'm trying to run bluedroid under valgrind on Android 5.1
I compiled and installed valgrind from "external/valgrind"
I'm running valgrind 3.11.0
I have selinux disabled
I'm successfully starting valgrind with logwrapper:

setprop wrap.com.android.bluetooth "logwrapper valgrind"

And it starts, but fails very shortly with:

Zygote   setregid() failed. errno: 1
Zygote   setreuid() failed. errno: 1
libc     pthread_create sched_setscheduler call failed: Operation not permitted  
libc     pthread_create sched_setscheduler call failed: Operation not permitted  
bt_osi_alarm bool timer_create_internal(clockid_t, void**) unable to create timer with clock 9: Operation not permitted  
bt_osi_alarm The kernel might not have support for timer_create(CLOCK_BOOTTIME_ALARM): https://lwn.net/Articles/429925/

Answer 1

After changing clock type from CLOCK_BOOTTIME_ALARM to CLOCK_BOOTTIME, in alarm.cc, i'm able to successfully run bluedroid with valgring on Android.

My valgrind startup script: (vg.sh)

#!/system/bin/sh                                                                                                        

 PACKAGE="com.android.bluetooth"                                                                                         

 VGPARAMS='-v --error-limit=no --trace-children=yes --log-file=/sdcard/valgrind.log.%p --tool=memcheck --leak-check=no --show-reachable=no --track-origins=yes'
 export TMPDIR=/data/data/$PACKAGE                                                                                       

 /system/bin/valgrind $VGPARAMS $* 

I boot normally, setup logwrapper with:

adb shell setprop wrap.com.android.bluetooth "logwrapper /system/xbin/vg.sh"  

And just kill the bluetooth process, it then restarts under valgrind.