Re: [Valgrind-users] helgrind/drd in android(mips)

[Bart V. A. <bva...@ac...>]

On 18/11/2014 23:33, Benny anam wrote:
> I try to figure out some problems about invalid free in android(mips) 
> device, which may be caused by thread sync, I did as the 
> README.android says compile the source and push to device, memcheck 
> works fine in my device, but when I changed option to --tool=helgrind, 
> the android logcat says the following:
> |I/start_valgrind.sh(  9328):  link_image[2207]:   9329  couldnot  load needed library
> '/data/local/Inst/lib/valgrind/vgpreload_drd-mips32-linux.so'  for  '/system/bin/app_process'  
> (mips_relocate_got[1749]:   9329  cannot locate'sched_yield'...|
> but sched_yield is in /system/lib/libc.so. I use valgrind 3.10.0 and 
> android 4.1 on mips, ndk-r8 and ndk-r10c both tried with the same 
> results. So my question is helgrind/drd supported in android(arch 
> mips) yet, If so, how can I make it work in my device?  Thanks!

Can you check whether Helgrind and/or DRD work if the sched_yield() call 
is changed into sleep(1) ? I'm not sure yet what's going on but this 
might be the quickest way to get these tools working.

Bart.