__NR_wait4 242 arch/arm64/include/asm/unistd32.h __SYSCALL(__NR_wait4, compat_sys_wait4) __NR_wait4 707 include/uapi/asm-generic/unistd.h __SC_COMP(__NR_wait4, sys_wait4, compat_sys_wait4) __NR_wait4 1750 tools/include/nolibc/nolibc.h return my_syscall4(__NR_wait4, pid, status, options, rusage); __NR_wait4 707 tools/include/uapi/asm-generic/unistd.h __SC_COMP(__NR_wait4, sys_wait4, compat_sys_wait4)