old_sa            630 lib/services/services_linux.c     struct sigaction old_sa;
old_sa            632 lib/services/services_linux.c     if (sigaction(SIGCHLD, &old_sa, NULL) < 0) {                              \
old_sa            709 lib/services/services_linux.c         if (sigaction(SIGCHLD, &sa, &old_sa) < 0) {