Currently it says: > SIGCHLD P1990 Ign Child stopped or terminated It's the definition from POSIX 1990 which is referred here but the modern POSIX says that it's also sent when child continues https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/signal.h.html: > Child process terminated, stopped, or continued. It's supported on Linux - in sigaction(2) a flag is described that controls this and it correctly says that it's sent on stop and resume: > SA_NOCLDSTOP > > If signum is SIGCHLD, do not receive notification when child processes > stop (i.e., when they receive one of SIGSTOP, SIGTSTP, SIGTTIN, or > SIGTTOU) or resume (i.e., they receive SIGCONT) (see wait(2)). This > flag is meaningful only when establishing a handler for SIGCHLD. The question about wording in signal(7) has been originally asked by a confused user here https://unix.stackexchange.com/q/790116/72304. Should it be changed? -- Arkadiusz Drabczyk <arkadiusz@xxxxxxxxxxxx>
