Step one line (step over calls). With multithreaded programs when a function call is stepped over, all LWPs (lightweight processes) are implicitly resumed for the duration of that function call in order to avoid deadlock. Non-active threads cannot be stepped.
Step n lines (step over calls).
Deliver the given signal while stepping.
Step the given thread.
Step the given LWP. Will not implicitly resume all LWPs when stepping over a function.
n is the number of lines to step.
signal is the name of a signal.
thread_id is a thread ID.
lwp_id is an LWP ID.
When an explicit thread_id or lwp_id is given, the deadlock avoidance measure of the generic next command is defeated.
See also nexti Command for machine-level stepping over calls.
For information on lightweight processes (LWPs), see the Solaris Multithreaded Programming Guide.