[
  {
    "arch": "xtensa",
    "nr": 227,
    "name": "rt_sigprocmask",
    "description": "examine and change blocked signals",
    "abi": "common",
    "entry_point": "sys_rt_sigprocmask",
    "nargs": 4,
    "arg0": "int how",
    "arg1": "sigset_t *nset",
    "arg2": "sigset_t *oset",
    "arg3": "size_t sigsetsize",
    "arg4": null,
    "arg5": null,
    "man_page": "https://man7.org/linux/man-pages/man2/rt_sigprocmask.2.html",
    "source": "https://elixir.bootlin.com/linux/v7.3/A/ident/sys_rt_sigprocmask",
    "since": "5.0",
    "removed_in": null
  }
]