src/os/posix/vm/os_posix.cpp

rev 10257 : 8149036: Add tracing for thread related events at os level
Reviewed-by: coleenp

*** 1069,1078 ****
--- 1069,1091 ----
  #else
     VMError::report_and_die("unimplemented ucontext_get_pc");
  #endif
  }
  
+ char* os::Posix::describe_pthread_attr(char* buf, size_t buflen, const pthread_attr_t* attr) {
+   size_t stack_size = 0;
+   size_t guard_size = 0;
+   int detachstate = 0;
+   pthread_attr_getstacksize(attr, &stack_size);
+   pthread_attr_getguardsize(attr, &guard_size);
+   pthread_attr_getdetachstate(attr, &detachstate);
+   jio_snprintf(buf, buflen, "stacksize: " SIZE_FORMAT "k, guardsize: " SIZE_FORMAT "k, %s",
+     stack_size / 1024, guard_size / 1024,
+     (detachstate == PTHREAD_CREATE_DETACHED ? "detached" : "joinable"));
+   return buf;
+ }
+ 
  
  os::WatcherThreadCrashProtection::WatcherThreadCrashProtection() {
    assert(Thread::current()->is_Watcher_thread(), "Must be WatcherThread");
  }