probe::stap.system.spawn - stap spawned new process

       Fires just after the call to posix_spawn.

       probe::stap.system.spawn - stap spawned new process

tapset::stap_staticmarkers(3stap)

SystemTap Tapset Reference                         April 2024                          PROBE::STAP.SYSTEM(3stap)

       stap.system.spawn

pid
           the pid of the spawned process

       ret
           the return value from posix_spawn