__NR_signalfd4    305 sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc     case __NR_signalfd4:
__NR_signalfd4   1258 sandbox/linux/services/arm_linux_syscalls.h #if !defined(__NR_signalfd4)
__NR_signalfd4   1305 sandbox/linux/services/x86_32_linux_syscalls.h #if !defined(__NR_signalfd4)
__NR_signalfd4   1169 sandbox/linux/services/x86_64_linux_syscalls.h #if !defined(__NR_signalfd4)