# Copyright (c) Meta Platforms, Inc. and affiliates. # SPDX-License-Identifier: LGPL-2.1-or-later import platform import re import sys import types NORMALIZED_MACHINE_NAME = platform.machine() if NORMALIZED_MACHINE_NAME.startswith("aarch64") or NORMALIZED_MACHINE_NAME == "arm64": NORMALIZED_MACHINE_NAME = "aarch64" elif NORMALIZED_MACHINE_NAME.startswith("arm") or NORMALIZED_MACHINE_NAME == "sa110": NORMALIZED_MACHINE_NAME = "arm" elif re.fullmatch(r"i.86", NORMALIZED_MACHINE_NAME): NORMALIZED_MACHINE_NAME = "i386" elif NORMALIZED_MACHINE_NAME.startswith("ppc64"): NORMALIZED_MACHINE_NAME = "ppc64" elif NORMALIZED_MACHINE_NAME.startswith("ppc"): NORMALIZED_MACHINE_NAME = "ppc" elif NORMALIZED_MACHINE_NAME == "riscv": NORMALIZED_MACHINE_NAME = "riscv32" elif re.match(r"sh[0-9]", NORMALIZED_MACHINE_NAME): NORMALIZED_MACHINE_NAME = "sh" elif NORMALIZED_MACHINE_NAME == "sun4u": NORMALIZED_MACHINE_NAME = "sparc64" if NORMALIZED_MACHINE_NAME == "x86_64": if sys.maxsize > 2**32: SYS = { "bpf": 321, "finit_module": 313, "io_destroy": 207, "io_setup": 206, "io_submit": 209, "kexec_file_load": 320, "memfd_create": 319, "perf_event_open": 298, } else: # x32 SYS = { "bpf": 321, "finit_module": 313, "io_destroy": 207, "io_setup": 543, "io_submit": 544, "kexec_file_load": 320, "memfd_create": 319, "perf_event_open": 298, } else: SYS = { "aarch64": { "bpf": 280, "finit_module": 273, "io_destroy": 1, "io_setup": 0, "io_submit": 2, "kexec_file_load": 294, "memfd_create": 279, "perf_event_open": 241, }, "alpha": { "bpf": 515, "finit_module": 507, "io_destroy": 399, "io_setup": 398, "io_submit": 401, "memfd_create": 512, "perf_event_open": 493, }, "arc": { "bpf": 280, "finit_module": 273, "io_destroy": 1, "io_setup": 0, "io_submit": 2, "kexec_file_load": 294, "memfd_create": 279, "perf_event_open": 241, }, "arm": { "bpf": 386, "finit_module": 379, "io_destroy": 244, "io_setup": 243, "io_submit": 246, "kexec_file_load": 401, "memfd_create": 385, "perf_event_open": 364, }, "csky": { "bpf": 280, "finit_module": 273, "io_destroy": 1, "io_setup": 0, "io_submit": 2, "kexec_file_load": 294, "memfd_create": 279, "perf_event_open": 241, }, "hexagon": { "bpf": 280, "finit_module": 273, "io_destroy": 1, "io_setup": 0, "io_submit": 2, "kexec_file_load": 294, "memfd_create": 279, "perf_event_open": 241, }, "i386": { "bpf": 357, "finit_module": 350, "io_destroy": 246, "io_setup": 245, "io_submit": 248, "memfd_create": 356, "perf_event_open": 336, }, "loongarch": { "bpf": 280, "finit_module": 273, "io_destroy": 1, "io_setup": 0, "io_submit": 2, "kexec_file_load": 294, "memfd_create": 279, "perf_event_open": 241, }, "loongarch64": { "bpf": 280, "finit_module": 273, "io_destroy": 1, "io_setup": 0, "io_submit": 2, "kexec_file_load": 294, "memfd_create": 279, "perf_event_open": 241, }, "m68k": { "bpf": 354, "finit_module": 348, "io_destroy": 242, "io_setup": 241, "io_submit": 244, "memfd_create": 353, "perf_event_open": 332, }, "microblaze": { "bpf": 387, "finit_module": 380, "io_destroy": 246, "io_setup": 245, "io_submit": 248, "memfd_create": 386, "perf_event_open": 366, }, # TODO: mips is missing here because I don't know how to distinguish # between the o32 and n32 ABIs. "mips64": { "bpf": 315, "finit_module": 307, "io_destroy": 201, "io_setup": 200, "io_submit": 203, "memfd_create": 314, "perf_event_open": 292, }, "nios2": { "bpf": 280, "finit_module": 273, "io_destroy": 1, "io_setup": 0, "io_submit": 2, "kexec_file_load": 294, "memfd_create": 279, "perf_event_open": 241, }, "openrisc": { "bpf": 280, "finit_module": 273, "io_destroy": 1, "io_setup": 0, "io_submit": 2, "kexec_file_load": 294, "memfd_create": 279, "perf_event_open": 241, }, "parisc": { "bpf": 341, "finit_module": 333, "io_destroy": 216, "io_setup": 215, "io_submit": 218, "kexec_file_load": 355, "memfd_create": 340, "perf_event_open": 318, }, "parisc64": { "bpf": 341, "finit_module": 333, "io_destroy": 216, "io_setup": 215, "io_submit": 218, "kexec_file_load": 355, "memfd_create": 340, "perf_event_open": 318, }, "ppc": { "bpf": 361, "finit_module": 353, "io_destroy": 228, "io_setup": 227, "io_submit": 230, "memfd_create": 360, "perf_event_open": 319, }, "ppc64": { "bpf": 361, "finit_module": 353, "io_destroy": 228, "io_setup": 227, "io_submit": 230, "memfd_create": 360, "perf_event_open": 319, }, "riscv32": { "bpf": 280, "finit_module": 273, "io_destroy": 1, "io_setup": 0, "io_submit": 2, "kexec_file_load": 294, "memfd_create": 279, "perf_event_open": 241, }, "riscv64": { "bpf": 280, "finit_module": 273, "io_destroy": 1, "io_setup": 0, "io_submit": 2, "kexec_file_load": 294, "memfd_create": 279, "perf_event_open": 241, }, "s390": { "bpf": 351, "finit_module": 344, "io_destroy": 244, "io_setup": 243, "io_submit": 246, "kexec_file_load": 381, "memfd_create": 350, "perf_event_open": 331, }, "s390x": { "bpf": 351, "finit_module": 344, "io_destroy": 244, "io_setup": 243, "io_submit": 246, "kexec_file_load": 381, "memfd_create": 350, "perf_event_open": 331, }, "sh": { "bpf": 375, "finit_module": 368, "io_destroy": 246, "io_setup": 245, "io_submit": 248, "memfd_create": 374, "perf_event_open": 336, }, "sparc": { "bpf": 349, "finit_module": 342, "io_destroy": 269, "io_setup": 268, "io_submit": 270, "memfd_create": 348, "perf_event_open": 327, }, "sparc64": { "bpf": 349, "finit_module": 342, "io_destroy": 269, "io_setup": 268, "io_submit": 270, "memfd_create": 348, "perf_event_open": 327, }, "xtensa": { "bpf": 340, "finit_module": 332, "io_destroy": 240, "io_setup": 239, "io_submit": 241, "memfd_create": 339, "perf_event_open": 327, }, }.get(NORMALIZED_MACHINE_NAME, {}) _IOC_NONE = { "alpha": 1, "mips": 1, "mips64": 1, "ppc": 1, "ppc64": 1, "sparc": 1, "sparc64": 1, }.get(NORMALIZED_MACHINE_NAME, 0) _IOC_READ = { "parisc": 1, "parisc64": 1, }.get(NORMALIZED_MACHINE_NAME, 2) _IOC_WRITE = { "alpha": 4, "mips": 4, "mips64": 4, "parisc": 2, "parisc64": 2, "ppc": 4, "ppc64": 4, "sparc": 4, "sparc64": 4, }.get(NORMALIZED_MACHINE_NAME, 1) _IOC_NRBITS = 8 _IOC_TYPEBITS = 8 _IOC_SIZEBITS = { "alpha": 13, "mips": 13, "mips64": 13, "ppc": 13, "ppc64": 13, "sparc": 13, "sparc64": 13, }.get(NORMALIZED_MACHINE_NAME, 14) _IOC_DIRBITS = { "alpha": 3, "mips": 3, "mips64": 3, "ppc": 3, "ppc64": 3, "sparc": 3, "sparc64": 3, }.get(NORMALIZED_MACHINE_NAME, 2) _IOC_NRSHIFT = 0 _IOC_TYPESHIFT = _IOC_NRSHIFT + _IOC_NRBITS _IOC_SIZESHIFT = _IOC_TYPESHIFT + _IOC_TYPEBITS _IOC_DIRSHIFT = _IOC_SIZESHIFT + _IOC_SIZEBITS def _IOC(dir: int, type: int, nr: int, size: int) -> int: return ( (dir << _IOC_DIRSHIFT) | (type << _IOC_TYPESHIFT) | (nr << _IOC_NRSHIFT) | (size << _IOC_SIZESHIFT) ) def _IO(type: int, nr: int) -> int: return _IOC(_IOC_NONE, type, nr, 0) def _IOR(type: int, nr: int, size: int) -> int: return _IOC(_IOC_READ, type, nr, size) def _IOW(type: int, nr: int, size: int) -> int: return _IOC(_IOC_WRITE, type, nr, size) def _IOWR(type: int, nr: int, size: int) -> int: return _IOC(_IOC_READ | _IOC_WRITE, type, nr, size) _SIGNALS_BY_MACHINE_NAME_TMP = {} for _name in ( "aarch64", "arc", "csky", "hexagon", "i386", "loongarch", "loongarch64", "m68k", "microblaze", "nios2", "openrisc", "ppc", "ppc64", "riscv32", "riscv64", "s390", "s390x", "sh", "x86_64", ): _SIGNALS_BY_MACHINE_NAME_TMP[_name] = types.MappingProxyType( { "SIGHUP": 1, "SIGINT": 2, "SIGQUIT": 3, "SIGILL": 4, "SIGTRAP": 5, "SIGABRT": 6, "SIGIOT": 6, "SIGBUS": 7, "SIGFPE": 8, "SIGKILL": 9, "SIGUSR1": 10, "SIGSEGV": 11, "SIGUSR2": 12, "SIGPIPE": 13, "SIGALRM": 14, "SIGTERM": 15, "SIGSTKFLT": 16, "SIGCHLD": 17, "SIGCLD": 17, "SIGCONT": 18, "SIGSTOP": 19, "SIGTSTP": 20, "SIGTTIN": 21, "SIGTTOU": 22, "SIGURG": 23, "SIGXCPU": 24, "SIGXFSZ": 25, "SIGVTALRM": 26, "SIGPROF": 27, "SIGWINCH": 28, "SIGIO": 29, "SIGPOLL": 29, "SIGPWR": 30, "SIGSYS": 31, "SIGUNUSED": 31, "SIGRTMIN": 32, "SIGRTMAX": 64, } ) _SIGNALS_BY_MACHINE_NAME_TMP["alpha"] = types.MappingProxyType( { "SIGHUP": 1, "SIGINT": 2, "SIGQUIT": 3, "SIGILL": 4, "SIGTRAP": 5, "SIGABRT": 6, "SIGIOT": 6, "SIGEMT": 7, "SIGFPE": 8, "SIGKILL": 9, "SIGBUS": 10, "SIGSEGV": 11, "SIGSYS": 12, "SIGUNUSED": 12, "SIGPIPE": 13, "SIGALRM": 14, "SIGTERM": 15, "SIGURG": 16, "SIGSTOP": 17, "SIGTSTP": 18, "SIGCONT": 19, "SIGCHLD": 20, "SIGCLD": 20, "SIGTTIN": 21, "SIGTTOU": 22, "SIGIO": 23, "SIGPOLL": 23, "SIGXCPU": 24, "SIGXFSZ": 25, "SIGVTALRM": 26, "SIGPROF": 27, "SIGWINCH": 28, "SIGPWR": 29, "SIGINFO": 29, "SIGUSR1": 30, "SIGUSR2": 31, "SIGRTMIN": 32, "SIGRTMAX": 64, } ) _SIGNALS_BY_MACHINE_NAME_TMP["arm"] = types.MappingProxyType( { "SIGHUP": 1, "SIGINT": 2, "SIGQUIT": 3, "SIGILL": 4, "SIGTRAP": 5, "SIGABRT": 6, "SIGIOT": 6, "SIGBUS": 7, "SIGFPE": 8, "SIGKILL": 9, "SIGUSR1": 10, "SIGSEGV": 11, "SIGUSR2": 12, "SIGPIPE": 13, "SIGALRM": 14, "SIGTERM": 15, "SIGSTKFLT": 16, "SIGCHLD": 17, "SIGCLD": 17, "SIGCONT": 18, "SIGSTOP": 19, "SIGTSTP": 20, "SIGTTIN": 21, "SIGTTOU": 22, "SIGURG": 23, "SIGXCPU": 24, "SIGXFSZ": 25, "SIGVTALRM": 26, "SIGPROF": 27, "SIGWINCH": 28, "SIGIO": 29, "SIGPOLL": 29, "SIGPWR": 30, "SIGSYS": 31, "SIGUNUSED": 31, "SIGRTMIN": 32, "SIGSWI": 32, "SIGRTMAX": 64, } ) for _name in ("mips", "mips64"): _SIGNALS_BY_MACHINE_NAME_TMP[_name] = types.MappingProxyType( { "SIGHUP": 1, "SIGINT": 2, "SIGQUIT": 3, "SIGILL": 4, "SIGTRAP": 5, "SIGABRT": 6, "SIGIOT": 6, "SIGEMT": 7, "SIGFPE": 8, "SIGKILL": 9, "SIGBUS": 10, "SIGSEGV": 11, "SIGSYS": 12, "SIGUNUSED": 12, "SIGPIPE": 13, "SIGALRM": 14, "SIGTERM": 15, "SIGUSR1": 16, "SIGUSR2": 17, "SIGCHLD": 18, "SIGCLD": 18, "SIGPWR": 19, "SIGWINCH": 20, "SIGURG": 21, "SIGIO": 22, "SIGPOLL": 22, "SIGSTOP": 23, "SIGTSTP": 24, "SIGCONT": 25, "SIGTTIN": 26, "SIGTTOU": 27, "SIGVTALRM": 28, "SIGPROF": 29, "SIGXCPU": 30, "SIGXFSZ": 31, "SIGRTMIN": 32, "SIGRTMAX": 128, } ) for _name in ("parisc", "parisc64"): _SIGNALS_BY_MACHINE_NAME_TMP[_name] = types.MappingProxyType( { "SIGHUP": 1, "SIGINT": 2, "SIGQUIT": 3, "SIGILL": 4, "SIGTRAP": 5, "SIGABRT": 6, "SIGIOT": 6, "SIGSTKFLT": 7, "SIGFPE": 8, "SIGKILL": 9, "SIGBUS": 10, "SIGSEGV": 11, "SIGXCPU": 12, "SIGPIPE": 13, "SIGALRM": 14, "SIGTERM": 15, "SIGUSR1": 16, "SIGUSR2": 17, "SIGCHLD": 18, "SIGCLD": 18, "SIGPWR": 19, "SIGVTALRM": 20, "SIGPROF": 21, "SIGIO": 22, "SIGPOLL": 22, "SIGWINCH": 23, "SIGSTOP": 24, "SIGTSTP": 25, "SIGCONT": 26, "SIGTTIN": 27, "SIGTTOU": 28, "SIGURG": 29, "SIGXFSZ": 30, "SIGSYS": 31, "SIGUNUSED": 31, "SIGRTMIN": 32, "SIGRTMAX": 64, } ) for _name in ("sparc", "sparc64"): _SIGNALS_BY_MACHINE_NAME_TMP[_name] = types.MappingProxyType( { "SIGHUP": 1, "SIGINT": 2, "SIGQUIT": 3, "SIGILL": 4, "SIGTRAP": 5, "SIGABRT": 6, "SIGIOT": 6, "SIGEMT": 7, "SIGFPE": 8, "SIGKILL": 9, "SIGBUS": 10, "SIGSEGV": 11, "SIGSYS": 12, "SIGUNUSED": 12, "SIGPIPE": 13, "SIGALRM": 14, "SIGTERM": 15, "SIGURG": 16, "SIGSTOP": 17, "SIGTSTP": 18, "SIGCONT": 19, "SIGCHLD": 20, "SIGCLD": 20, "SIGTTIN": 21, "SIGTTOU": 22, "SIGIO": 23, "SIGPOLL": 23, "SIGXCPU": 24, "SIGXFSZ": 25, "SIGVTALRM": 26, "SIGPROF": 27, "SIGWINCH": 28, "SIGPWR": 29, "SIGLOST": 29, "SIGUSR1": 30, "SIGUSR2": 31, "SIGRTMIN": 32, "SIGRTMAX": 64, } ) _SIGNALS_BY_MACHINE_NAME_TMP["xtensa"] = types.MappingProxyType( { "SIGHUP": 1, "SIGINT": 2, "SIGQUIT": 3, "SIGILL": 4, "SIGTRAP": 5, "SIGABRT": 6, "SIGIOT": 6, "SIGBUS": 7, "SIGFPE": 8, "SIGKILL": 9, "SIGUSR1": 10, "SIGSEGV": 11, "SIGUSR2": 12, "SIGPIPE": 13, "SIGALRM": 14, "SIGTERM": 15, "SIGSTKFLT": 16, "SIGCHLD": 17, "SIGCLD": 17, "SIGCONT": 18, "SIGSTOP": 19, "SIGTSTP": 20, "SIGTTIN": 21, "SIGTTOU": 22, "SIGURG": 23, "SIGXCPU": 24, "SIGXFSZ": 25, "SIGVTALRM": 26, "SIGPROF": 27, "SIGWINCH": 28, "SIGIO": 29, "SIGPOLL": 29, "SIGPWR": 30, "SIGSYS": 31, "SIGUNUSED": 31, "SIGRTMIN": 32, "SIGRTMAX": 63, } ) SIGNALS_BY_MACHINE_NAME = types.MappingProxyType(_SIGNALS_BY_MACHINE_NAME_TMP) del _SIGNALS_BY_MACHINE_NAME_TMP _SIGACTION_FLAGS_BY_MACHINE_NAME_TMP = {} for _name in ( "aarch64", "arc", "nios2", "ppc", "ppc64", "s390", "s390x", "sh", "xtensa", ): _SIGACTION_FLAGS_BY_MACHINE_NAME_TMP[_name] = types.MappingProxyType( { "SA_NOCLDSTOP": 0x1, "SA_NOCLDWAIT": 0x2, "SA_SIGINFO": 0x4, "SA_UNSUPPORTED": 0x400, "SA_EXPOSE_TAGBITS": 0x800, "SA_IMMUTABLE": 0x800000, "SA_RESTORER": 0x4000000, "SA_ONSTACK": 0x8000000, "SA_STACK": 0x8000000, "SA_RESTART": 0x10000000, "SA_NODEFER": 0x40000000, "SA_NOMASK": 0x40000000, "SA_RESETHAND": 0x80000000, "SA_ONESHOT": 0x80000000, } ) _SIGACTION_FLAGS_BY_MACHINE_NAME_TMP["alpha"] = types.MappingProxyType( { "SA_ONSTACK": 0x1, "SA_STACK": 0x1, "SA_RESTART": 0x2, "SA_NOCLDSTOP": 0x4, "SA_NODEFER": 0x8, "SA_NOMASK": 0x8, "SA_RESETHAND": 0x10, "SA_ONESHOT": 0x10, "SA_NOCLDWAIT": 0x20, "SA_SIGINFO": 0x40, "SA_UNSUPPORTED": 0x400, "SA_EXPOSE_TAGBITS": 0x800, "SA_IMMUTABLE": 0x800000, } ) _SIGACTION_FLAGS_BY_MACHINE_NAME_TMP["arm"] = types.MappingProxyType( { "SA_NOCLDSTOP": 0x1, "SA_NOCLDWAIT": 0x2, "SA_SIGINFO": 0x4, "SA_UNSUPPORTED": 0x400, "SA_EXPOSE_TAGBITS": 0x800, "SA_IMMUTABLE": 0x800000, "SA_THIRTYTWO": 0x2000000, "SA_RESTORER": 0x4000000, "SA_ONSTACK": 0x8000000, "SA_STACK": 0x8000000, "SA_RESTART": 0x10000000, "SA_NODEFER": 0x40000000, "SA_NOMASK": 0x40000000, "SA_RESETHAND": 0x80000000, "SA_ONESHOT": 0x80000000, } ) for _name in ( "csky", "hexagon", "loongarch", "loongarch64", "m68k", "microblaze", "openrisc", "riscv32", "riscv64", ): _SIGACTION_FLAGS_BY_MACHINE_NAME_TMP[_name] = types.MappingProxyType( { "SA_NOCLDSTOP": 0x1, "SA_NOCLDWAIT": 0x2, "SA_SIGINFO": 0x4, "SA_UNSUPPORTED": 0x400, "SA_EXPOSE_TAGBITS": 0x800, "SA_IMMUTABLE": 0x800000, "SA_ONSTACK": 0x8000000, "SA_STACK": 0x8000000, "SA_RESTART": 0x10000000, "SA_NODEFER": 0x40000000, "SA_NOMASK": 0x40000000, "SA_RESETHAND": 0x80000000, "SA_ONESHOT": 0x80000000, } ) for _name in ("i386", "x86_64"): _SIGACTION_FLAGS_BY_MACHINE_NAME_TMP[_name] = types.MappingProxyType( { "SA_NOCLDSTOP": 0x1, "SA_NOCLDWAIT": 0x2, "SA_SIGINFO": 0x4, "SA_UNSUPPORTED": 0x400, "SA_EXPOSE_TAGBITS": 0x800, "SA_IMMUTABLE": 0x800000, "SA_X32_ABI": 0x1000000, "SA_IA32_ABI": 0x2000000, "SA_RESTORER": 0x4000000, "SA_ONSTACK": 0x8000000, "SA_STACK": 0x8000000, "SA_RESTART": 0x10000000, "SA_NODEFER": 0x40000000, "SA_NOMASK": 0x40000000, "SA_RESETHAND": 0x80000000, "SA_ONESHOT": 0x80000000, } ) for _name in ("mips", "mips64"): _SIGACTION_FLAGS_BY_MACHINE_NAME_TMP[_name] = types.MappingProxyType( { "SA_NOCLDSTOP": 0x1, "SA_SIGINFO": 0x8, "SA_UNSUPPORTED": 0x400, "SA_EXPOSE_TAGBITS": 0x800, "SA_NOCLDWAIT": 0x10000, "SA_IMMUTABLE": 0x800000, "SA_ONSTACK": 0x8000000, "SA_STACK": 0x8000000, "SA_RESTART": 0x10000000, "SA_NODEFER": 0x40000000, "SA_NOMASK": 0x40000000, "SA_RESETHAND": 0x80000000, "SA_ONESHOT": 0x80000000, } ) for _name in ("parisc", "parisc64"): _SIGACTION_FLAGS_BY_MACHINE_NAME_TMP[_name] = types.MappingProxyType( { "SA_ONSTACK": 0x1, "SA_STACK": 0x1, "SA_RESETHAND": 0x4, "SA_ONESHOT": 0x4, "SA_NOCLDSTOP": 0x8, "SA_SIGINFO": 0x10, "SA_NODEFER": 0x20, "SA_NOMASK": 0x20, "SA_RESTART": 0x40, "SA_NOCLDWAIT": 0x80, "SA_UNSUPPORTED": 0x400, "SA_EXPOSE_TAGBITS": 0x800, "SA_IMMUTABLE": 0x800000, } ) for _name in ("sparc", "sparc64"): _SIGACTION_FLAGS_BY_MACHINE_NAME_TMP[_name] = types.MappingProxyType( { "SA_ONSTACK": 0x1, "SA_STACK": 0x1, "SA_RESTART": 0x2, "SA_RESETHAND": 0x4, "SA_ONESHOT": 0x4, "SA_NOCLDSTOP": 0x8, "SA_NODEFER": 0x20, "SA_NOMASK": 0x20, "SA_NOCLDWAIT": 0x100, "SA_SIGINFO": 0x200, "SA_UNSUPPORTED": 0x400, "SA_EXPOSE_TAGBITS": 0x800, "SA_IMMUTABLE": 0x800000, } ) SIGACTION_FLAGS_BY_MACHINE_NAME = types.MappingProxyType( _SIGACTION_FLAGS_BY_MACHINE_NAME_TMP ) del _SIGACTION_FLAGS_BY_MACHINE_NAME_TMP