Kostik Belousov wrote, On 3.6.2010 17:19: > On Thu, Jun 03, 2010 at 09:44:52AM -0500, Dan Nelson wrote: >> In the last episode (Jun 03), V??clav Haisman said: >>> is it possible to obtain some sort of a thread ID that identifies a thread >>> within a process other than pthread_self()? Something like gettid() on >>> Linux? Apparently, on FreeBSD the pthread_t is a pointer type and does >>> not identify the thread well enough. GDB on FreeBSD seems to know about >>> threads and does not seem to use the same ID as is pthread_t. >> >> The return value of pthread_self() is a pointer to the (private) "struct >> pthread" for the current thread, and should uniquely identify a thread. Do >> you have a testcase that shows otherwise? GDB might just enumerate the >> currently active threads starting from 1. > > There is thr_self(2) undocumented syscall: > int thr_self(long *id); Thanks, I'll try it. Is the returned ID the LWP ID that GDB shows?
-- VH
signature.asc
Description: OpenPGP digital signature
