vm_tid            802 src/platform-freebsd.cc     sender->SendProfilingSignal(sampler->platform_data()->vm_tid());
vm_tid           1165 src/platform-linux.cc     sender->SendProfilingSignal(sampler->platform_data()->vm_tid());
vm_tid            887 src/platform-openbsd.cc     sender->SendProfilingSignal(sampler->platform_data()->vm_tid());
vm_tid            805 src/platform-solaris.cc     sender->SendProfilingSignal(sampler->platform_data()->vm_tid());