gtsocial-umbx

signal_linux_s390x.go (93840B)

---

 // Code generated by 'ccgo signal/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o signal/signal_linux_s390x.go -pkgname signal', DO NOT EDIT.
 
 package signal
 
 import (
 	"math"
 	"reflect"
 	"sync/atomic"
 	"unsafe"
 )
 
 var _ = math.Pi
 var _ reflect.Kind
 var _ atomic.Value
 var _ unsafe.Pointer
 
 const (
 	MINSIGSTKSZ                  = 2048
 	NGREG                        = 27
 	NSIG                         = 65
 	SA_INTERRUPT                 = 0x20000000
 	SA_NOCLDSTOP                 = 1
 	SA_NOCLDWAIT                 = 2
 	SA_NODEFER                   = 0x40000000
 	SA_NOMASK                    = 1073741824
 	SA_ONESHOT                   = 2147483648
 	SA_ONSTACK                   = 0x08000000
 	SA_RESETHAND                 = 0x80000000
 	SA_RESTART                   = 0x10000000
 	SA_SIGINFO                   = 4
 	SA_STACK                     = 134217728
 	SIGABRT                      = 6
 	SIGALRM                      = 14
 	SIGBUS                       = 7
 	SIGCHLD                      = 17
 	SIGCLD                       = 17
 	SIGCONT                      = 18
 	SIGFPE                       = 8
 	SIGHUP                       = 1
 	SIGILL                       = 4
 	SIGINT                       = 2
 	SIGIO                        = 29
 	SIGIOT                       = 6
 	SIGKILL                      = 9
 	SIGPIPE                      = 13
 	SIGPOLL                      = 29
 	SIGPROF                      = 27
 	SIGPWR                       = 30
 	SIGQUIT                      = 3
 	SIGSEGV                      = 11
 	SIGSTKFLT                    = 16
 	SIGSTKSZ                     = 8192
 	SIGSTOP                      = 19
 	SIGSYS                       = 31
 	SIGTERM                      = 15
 	SIGTRAP                      = 5
 	SIGTSTP                      = 20
 	SIGTTIN                      = 21
 	SIGTTOU                      = 22
 	SIGURG                       = 23
 	SIGUSR1                      = 10
 	SIGUSR2                      = 12
 	SIGVTALRM                    = 26
 	SIGWINCH                     = 28
 	SIGXCPU                      = 24
 	SIGXFSZ                      = 25
 	SIG_BLOCK                    = 0
 	SIG_SETMASK                  = 2
 	SIG_UNBLOCK                  = 1
 	X_ASM_GENERIC_INT_LL64_H     = 0
 	X_ASM_S390_SIGCONTEXT_H      = 0
 	X_ATFILE_SOURCE              = 1
 	X_BITS_ENDIANNESS_H          = 1
 	X_BITS_ENDIAN_H              = 1
 	X_BITS_PTHREADTYPES_ARCH_H   = 1
 	X_BITS_PTHREADTYPES_COMMON_H = 1
 	X_BITS_SIGACTION_H           = 1
 	X_BITS_SIGCONTEXT_H          = 1
 	X_BITS_SIGEVENT_CONSTS_H     = 1
 	X_BITS_SIGINFO_ARCH_H        = 1
 	X_BITS_SIGINFO_CONSTS_H      = 1
 	X_BITS_SIGNUM_GENERIC_H      = 1
 	X_BITS_SIGNUM_H              = 1
 	X_BITS_SIGSTACK_H            = 1
 	X_BITS_SIGTHREAD_H           = 1
 	X_BITS_SS_FLAGS_H            = 1
 	X_BITS_TIME64_H              = 1
 	X_BITS_TYPESIZES_H           = 1
 	X_BITS_TYPES_H               = 1
 	X_BSD_SIZE_T_                = 0
 	X_BSD_SIZE_T_DEFINED_        = 0
 	X_DEFAULT_SOURCE             = 1
 	X_FEATURES_H                 = 1
 	X_FILE_OFFSET_BITS           = 64
 	X_GCC_SIZE_T                 = 0
 	X_LINUX_POSIX_TYPES_H        = 0
 	X_LINUX_TYPES_H              = 0
 	X_LP64                       = 1
 	X_NSIG                       = 65
 	X_POSIX_C_SOURCE             = 200809
 	X_POSIX_SOURCE               = 1
 	X_RWLOCK_INTERNAL_H          = 0
 	X_S390_TYPES_H               = 0
 	X_SIGCONTEXT_NSIG            = 64
 	X_SIGCONTEXT_NSIG_BPW        = 64
 	X_SIGCONTEXT_NSIG_WORDS      = 1
 	X_SIGNAL_H                   = 0
 	X_SIZET_                     = 0
 	X_SIZE_T                     = 0
 	X_SIZE_T_                    = 0
 	X_SIZE_T_DECLARED            = 0
 	X_SIZE_T_DEFINED             = 0
 	X_SIZE_T_DEFINED_            = 0
 	X_STDC_PREDEF_H              = 1
 	X_STRUCT_TIMESPEC            = 1
 	X_SYS_CDEFS_H                = 1
 	X_SYS_SIZE_T_H               = 0
 	X_SYS_UCONTEXT_H             = 1
 	X_THREAD_MUTEX_INTERNAL_H    = 1
 	X_THREAD_SHARED_TYPES_H      = 1
 	X_T_SIZE                     = 0
 	X_T_SIZE_                    = 0
 	Linux                        = 1
 	Unix                         = 1
 )
 
 // POSIX names to access some of the members.
 
 // sigevent constants.  Linux version.
 //    Copyright (C) 1997-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // `sigev_notify' values.
 const ( /* sigevent-consts.h:27:1: */
 	SIGEV_SIGNAL = 0 // Notify via signal.
 	SIGEV_NONE   = 1 // Other notification: meaningless.
 	SIGEV_THREAD = 2 // Deliver via thread creation.
 
 	SIGEV_THREAD_ID = 4
 )
 
 // `si_code' values for SIGSEGV signal.
 const ( /* siginfo-consts.h:119:1: */
 	SEGV_MAPERR  = 1 // Address not mapped to object.
 	SEGV_ACCERR  = 2 // Invalid permissions for mapped object.
 	SEGV_BNDERR  = 3 // Bounds checking failure.
 	SEGV_PKUERR  = 4 // Protection key checking failure.
 	SEGV_ACCADI  = 5 // ADI not enabled for mapped object.
 	SEGV_ADIDERR = 6 // Disrupting MCD error.
 	SEGV_ADIPERR = 7
 )
 
 // `si_code' values for SIGBUS signal.
 const ( /* siginfo-consts.h:138:1: */
 	BUS_ADRALN    = 1 // Invalid address alignment.
 	BUS_ADRERR    = 2 // Non-existant physical address.
 	BUS_OBJERR    = 3 // Object specific hardware error.
 	BUS_MCEERR_AR = 4 // Hardware memory error: action required.
 	BUS_MCEERR_AO = 5
 )
 
 // `si_code' values for SIGCHLD signal.
 const ( /* siginfo-consts.h:172:1: */
 	CLD_EXITED    = 1 // Child has exited.
 	CLD_KILLED    = 2 // Child was killed.
 	CLD_DUMPED    = 3 // Child terminated abnormally.
 	CLD_TRAPPED   = 4 // Traced child has trapped.
 	CLD_STOPPED   = 5 // Child has stopped.
 	CLD_CONTINUED = 6
 )
 
 // `si_code' values for SIGPOLL signal.
 const ( /* siginfo-consts.h:189:1: */
 	POLL_IN  = 1 // Data input available.
 	POLL_OUT = 2 // Output buffers available.
 	POLL_MSG = 3 // Input message available.
 	POLL_ERR = 4 // I/O error.
 	POLL_PRI = 5 // High priority input available.
 	POLL_HUP = 6
 )
 
 // X/Open requires some more fields with fixed names.
 
 // siginfo constants.  Linux version.
 //    Copyright (C) 1997-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Most of these constants are uniform across all architectures, but there
 //    is one exception.
 // Architecture-specific adjustments to siginfo_t.
 
 // Values for `si_code'.  Positive values are reserved for kernel-generated
 //
 //	signals.
 const ( /* siginfo-consts.h:35:1: */
 	SI_ASYNCNL  = -60 // Sent by asynch name lookup completion.
 	SI_DETHREAD = -7  // Sent by execve killing subsidiary
 	// 				   threads.
 	SI_TKILL   = -6 // Sent by tkill.
 	SI_SIGIO   = -5 // Sent by queued SIGIO.
 	SI_ASYNCIO = -4 // Sent by AIO completion.
 	SI_MESGQ   = -3 // Sent by real time mesq state change.
 	SI_TIMER   = -2 // Sent by timer expiration.
 	SI_QUEUE   = -1 // Sent by sigqueue.
 	SI_USER    = 0  // Sent by kill, sigsend.
 	SI_KERNEL  = 128
 )
 
 // `si_code' values for SIGILL signal.
 const ( /* siginfo-consts.h:71:1: */
 	ILL_ILLOPC   = 1 // Illegal opcode.
 	ILL_ILLOPN   = 2 // Illegal operand.
 	ILL_ILLADR   = 3 // Illegal addressing mode.
 	ILL_ILLTRP   = 4 // Illegal trap.
 	ILL_PRVOPC   = 5 // Privileged opcode.
 	ILL_PRVREG   = 6 // Privileged register.
 	ILL_COPROC   = 7 // Coprocessor error.
 	ILL_BADSTK   = 8 // Internal stack error.
 	ILL_BADIADDR = 9
 )
 
 // `si_code' values for SIGFPE signal.
 const ( /* siginfo-consts.h:94:1: */
 	FPE_INTDIV   = 1  // Integer divide by zero.
 	FPE_INTOVF   = 2  // Integer overflow.
 	FPE_FLTDIV   = 3  // Floating point divide by zero.
 	FPE_FLTOVF   = 4  // Floating point overflow.
 	FPE_FLTUND   = 5  // Floating point underflow.
 	FPE_FLTRES   = 6  // Floating point inexact result.
 	FPE_FLTINV   = 7  // Floating point invalid operation.
 	FPE_FLTSUB   = 8  // Subscript out of range.
 	FPE_FLTUNK   = 14 // Undiagnosed floating-point exception.
 	FPE_CONDTRAP = 15
 )
 
 // sigstack, sigaltstack definitions.
 //    Copyright (C) 1998-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Minimum stack size for a signal handler.
 
 // System default stack size.
 
 // ss_flags values for stack_t.  Linux version.
 //    Copyright (C) 1998-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Possible values for `ss_flags'.
 const ( /* ss_flags.h:27:1: */
 	SS_ONSTACK = 1
 	SS_DISABLE = 2
 )
 
 type Ptrdiff_t = int64 /* <builtin>:3:26 */
 
 type Size_t = uint64 /* <builtin>:9:23 */
 
 type Wchar_t = int32 /* <builtin>:15:24 */
 
 type X__int128_t = struct {
 	Flo int64
 	Fhi int64
 } /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
 type X__uint128_t = struct {
 	Flo uint64
 	Fhi uint64
 } /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
 
 type X__builtin_va_list = uintptr /* <builtin>:46:14 */
 type X__float128 = float64        /* <builtin>:47:21 */
 
 // Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 //	ISO C99 Standard: 7.14 Signal handling <signal.h>
 
 // Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // These are defined by the user (or the compiler)
 //    to specify the desired environment:
 //
 //    __STRICT_ANSI__	ISO Standard C.
 //    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
 //    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
 //    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
 //    __STDC_WANT_LIB_EXT2__
 // 			Extensions to ISO C99 from TR 27431-2:2010.
 //    __STDC_WANT_IEC_60559_BFP_EXT__
 // 			Extensions to ISO C11 from TS 18661-1:2014.
 //    __STDC_WANT_IEC_60559_FUNCS_EXT__
 // 			Extensions to ISO C11 from TS 18661-4:2015.
 //    __STDC_WANT_IEC_60559_TYPES_EXT__
 // 			Extensions to ISO C11 from TS 18661-3:2015.
 //
 //    _POSIX_SOURCE	IEEE Std 1003.1.
 //    _POSIX_C_SOURCE	If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
 // 			if >=199309L, add IEEE Std 1003.1b-1993;
 // 			if >=199506L, add IEEE Std 1003.1c-1995;
 // 			if >=200112L, all of IEEE 1003.1-2004
 // 			if >=200809L, all of IEEE 1003.1-2008
 //    _XOPEN_SOURCE	Includes POSIX and XPG things.  Set to 500 if
 // 			Single Unix conformance is wanted, to 600 for the
 // 			sixth revision, to 700 for the seventh revision.
 //    _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
 //    _LARGEFILE_SOURCE	Some more functions for correct standard I/O.
 //    _LARGEFILE64_SOURCE	Additional functionality from LFS for large files.
 //    _FILE_OFFSET_BITS=N	Select default filesystem interface.
 //    _ATFILE_SOURCE	Additional *at interfaces.
 //    _GNU_SOURCE		All of the above, plus GNU extensions.
 //    _DEFAULT_SOURCE	The default set of features (taking precedence over
 // 			__STRICT_ANSI__).
 //
 //    _FORTIFY_SOURCE	Add security hardening to many library functions.
 // 			Set to 1 or 2; 2 performs stricter checks than 1.
 //
 //    _REENTRANT, _THREAD_SAFE
 // 			Obsolete; equivalent to _POSIX_C_SOURCE=199506L.
 //
 //    The `-ansi' switch to the GNU C compiler, and standards conformance
 //    options such as `-std=c99', define __STRICT_ANSI__.  If none of
 //    these are defined, or if _DEFAULT_SOURCE is defined, the default is
 //    to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
 //    200809L, as well as enabling miscellaneous functions from BSD and
 //    SVID.  If more than one of these are defined, they accumulate.  For
 //    example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together
 //    give you ISO C, 1003.1, and 1003.2, but nothing else.
 //
 //    These are defined by this file and are used by the
 //    header files to decide what to declare or define:
 //
 //    __GLIBC_USE (F)	Define things from feature set F.  This is defined
 // 			to 1 or 0; the subsequent macros are either defined
 // 			or undefined, and those tests should be moved to
 // 			__GLIBC_USE.
 //    __USE_ISOC11		Define ISO C11 things.
 //    __USE_ISOC99		Define ISO C99 things.
 //    __USE_ISOC95		Define ISO C90 AMD1 (C95) things.
 //    __USE_ISOCXX11	Define ISO C++11 things.
 //    __USE_POSIX		Define IEEE Std 1003.1 things.
 //    __USE_POSIX2		Define IEEE Std 1003.2 things.
 //    __USE_POSIX199309	Define IEEE Std 1003.1, and .1b things.
 //    __USE_POSIX199506	Define IEEE Std 1003.1, .1b, .1c and .1i things.
 //    __USE_XOPEN		Define XPG things.
 //    __USE_XOPEN_EXTENDED	Define X/Open Unix things.
 //    __USE_UNIX98		Define Single Unix V2 things.
 //    __USE_XOPEN2K        Define XPG6 things.
 //    __USE_XOPEN2KXSI     Define XPG6 XSI things.
 //    __USE_XOPEN2K8       Define XPG7 things.
 //    __USE_XOPEN2K8XSI    Define XPG7 XSI things.
 //    __USE_LARGEFILE	Define correct standard I/O things.
 //    __USE_LARGEFILE64	Define LFS things with separate names.
 //    __USE_FILE_OFFSET64	Define 64bit interface as default.
 //    __USE_MISC		Define things from 4.3BSD or System V Unix.
 //    __USE_ATFILE		Define *at interfaces and AT_* constants for them.
 //    __USE_GNU		Define GNU extensions.
 //    __USE_FORTIFY_LEVEL	Additional security measures used, according to level.
 //
 //    The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
 //    defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
 //    only for compatibility.  All new code should use the other symbols
 //    to test for features.
 //
 //    All macros listed above as possibly being defined by this file are
 //    explicitly undefined if they are not explicitly defined.
 //    Feature-test macros that are not defined by the user or compiler
 //    but are implied by the other feature-test macros defined (or by the
 //    lack of any definitions) are defined by the file.
 //
 //    ISO C feature test macros depend on the definition of the macro
 //    when an affected header is included, not when the first system
 //    header is included, and so they are handled in
 //    <bits/libc-header-start.h>, which does not have a multiple include
 //    guard.  Feature test macros that can be handled from the first
 //    system header included are handled here.
 
 // Undefine everything, so we get a clean slate.
 
 // Suppress kernel-name space pollution unless user expressedly asks
 //    for it.
 
 // Convenience macro to test the version of gcc.
 //    Use like this:
 //    #if __GNUC_PREREQ (2,8)
 //    ... code requiring gcc 2.8 or later ...
 //    #endif
 //    Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was
 //    added in 2.0.
 
 // Similarly for clang.  Features added to GCC after version 4.2 may
 //    or may not also be available in clang, and clang's definitions of
 //    __GNUC(_MINOR)__ are fixed at 4 and 2 respectively.  Not all such
 //    features can be queried via __has_extension/__has_feature.
 
 // Whether to use feature set F.
 
 // _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for
 //    _DEFAULT_SOURCE.  If _DEFAULT_SOURCE is present we do not
 //    issue a warning; the expectation is that the source is being
 //    transitioned to use the new macro.
 
 // If _GNU_SOURCE was defined by the user, turn on all the other features.
 
 // If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
 //    define _DEFAULT_SOURCE.
 
 // This is to enable the ISO C2X extension.
 
 // This is to enable the ISO C11 extension.
 
 // This is to enable the ISO C99 extension.
 
 // This is to enable the ISO C90 Amendment 1:1995 extension.
 
 // If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE
 //    is defined, use POSIX.1-2008 (or another version depending on
 //    _XOPEN_SOURCE).
 
 // Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
 //    defined in all multithreaded code.  GNU libc has not required this
 //    for many years.  We now treat them as compatibility synonyms for
 //    _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with
 //    comprehensive support for multithreaded code.  Using them never
 //    lowers the selected level of POSIX conformance, only raises it.
 
 // The function 'gets' existed in C89, but is impossible to use
 //    safely.  It has been removed from ISO C11 and ISO C++14.  Note: for
 //    compatibility with various implementations of <cstdio>, this test
 //    must consider only the value of __cplusplus when compiling C++.
 
 // GNU formerly extended the scanf functions with modified format
 //    specifiers %as, %aS, and %a[...] that allocate a buffer for the
 //    input using malloc.  This extension conflicts with ISO C99, which
 //    defines %a as a standalone format specifier that reads a floating-
 //    point number; moreover, POSIX.1-2008 provides the same feature
 //    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
 //
 //    We now follow C99 unless GNU extensions are active and the compiler
 //    is specifically in C89 or C++98 mode (strict or not).  For
 //    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
 //    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
 //    old extension.
 
 // Get definitions of __STDC_* predefined macros, if the compiler has
 //    not preincluded this header automatically.
 // Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // This macro indicates that the installed library is the GNU C Library.
 //    For historic reasons the value now is 6 and this will stay from now
 //    on.  The use of this variable is deprecated.  Use __GLIBC__ and
 //    __GLIBC_MINOR__ now (see below) when you want to test for a specific
 //    GNU C library version and use the values in <gnu/lib-names.h> to get
 //    the sonames of the shared libraries.
 
 // Major and minor version number of the GNU C library package.  Use
 //    these macros to test for features in specific releases.
 
 // This is here only because every header file already includes this one.
 // Copyright (C) 1992-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // We are almost always included from features.h.
 
 // The GNU libc does not support any K&R compilers or the traditional mode
 //    of ISO C compilers anymore.  Check for some of the combinations not
 //    anymore supported.
 
 // Some user header file might have defined this before.
 
 // All functions, except those with callbacks or those that
 //    synchronize memory, are leaf functions.
 
 // GCC can always grok prototypes.  For C++ programs we add throw()
 //    to help it optimize the function calls.  But this works only with
 //    gcc 2.8.x and egcs.  For gcc 3.2 and up we even mark C functions
 //    as non-throwing using a function attribute since programs can use
 //    the -fexceptions options for C code as well.
 
 // Compilers that are not clang may object to
 //        #if defined __clang__ && __has_extension(...)
 //    even though they do not need to evaluate the right-hand side of the &&.
 
 // These two macros are not used in glibc anymore.  They are kept here
 //    only because some other projects expect the macros to be defined.
 
 // For these things, GCC behaves the ANSI way normally,
 //    and the non-ANSI way under -traditional.
 
 // This is not a typedef so `const __ptr_t' does the right thing.
 
 // C++ needs to know that types and declarations are C, not C++.
 
 // Fortify support.
 
 // Support for flexible arrays.
 //    Headers that should use flexible arrays only if they're "real"
 //    (e.g. only if they won't affect sizeof()) should test
 //    #if __glibc_c99_flexarr_available.
 
 // __asm__ ("xyz") is used throughout the headers to rename functions
 //    at the assembly language level.  This is wrapped by the __REDIRECT
 //    macro, in order to support compilers that can do this some other
 //    way.  When compilers don't support asm-names at all, we have to do
 //    preprocessor tricks instead (which don't have exactly the right
 //    semantics, but it's the best we can do).
 //
 //    Example:
 //    int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid);
 
 //
 // #elif __SOME_OTHER_COMPILER__
 //
 // # define __REDIRECT(name, proto, alias) name proto; 	_Pragma("let " #name " = " #alias)
 
 // GCC has various useful declarations that can be made with the
 //    `__attribute__' syntax.  All of the ways we use this do fine if
 //    they are omitted for compilers that don't understand it.
 
 // At some point during the gcc 2.96 development the `malloc' attribute
 //    for functions was introduced.  We don't want to use it unconditionally
 //    (although this would be possible) since it generates warnings.
 
 // Tell the compiler which arguments to an allocation function
 //    indicate the size of the allocation.
 
 // At some point during the gcc 2.96 development the `pure' attribute
 //    for functions was introduced.  We don't want to use it unconditionally
 //    (although this would be possible) since it generates warnings.
 
 // This declaration tells the compiler that the value is constant.
 
 // At some point during the gcc 3.1 development the `used' attribute
 //    for functions was introduced.  We don't want to use it unconditionally
 //    (although this would be possible) since it generates warnings.
 
 // Since version 3.2, gcc allows marking deprecated functions.
 
 // Since version 4.5, gcc also allows one to specify the message printed
 //    when a deprecated function is used.  clang claims to be gcc 4.2, but
 //    may also support this feature.
 
 // At some point during the gcc 2.8 development the `format_arg' attribute
 //    for functions was introduced.  We don't want to use it unconditionally
 //    (although this would be possible) since it generates warnings.
 //    If several `format_arg' attributes are given for the same function, in
 //    gcc-3.0 and older, all but the last one are ignored.  In newer gccs,
 //    all designated arguments are considered.
 
 // At some point during the gcc 2.97 development the `strfmon' format
 //    attribute for functions was introduced.  We don't want to use it
 //    unconditionally (although this would be possible) since it
 //    generates warnings.
 
 // The nonull function attribute allows to mark pointer parameters which
 //    must not be NULL.
 
 // If fortification mode, we warn about unused results of certain
 //    function calls which can lead to problems.
 
 // Forces a function to be always inlined.
 // The Linux kernel defines __always_inline in stddef.h (283d7573), and
 //    it conflicts with this definition.  Therefore undefine it first to
 //    allow either header to be included first.
 
 // Associate error messages with the source location of the call site rather
 //    than with the source location inside the function.
 
 // GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
 //    inline semantics, unless -fgnu89-inline is used.  Using __GNUC_STDC_INLINE__
 //    or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
 //    older than 4.3 may define these macros and still not guarantee GNU inlining
 //    semantics.
 //
 //    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
 //    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
 //    __GNUC_GNU_INLINE__ macro definitions.
 
 // GCC 4.3 and above allow passing all anonymous arguments of an
 //    __extern_always_inline function to some other vararg function.
 
 // It is possible to compile containing GCC extensions even if GCC is
 //    run in pedantic mode if the uses are carefully marked using the
 //    `__extension__' keyword.  But this is not generally available before
 //    version 2.8.
 
 // __restrict is known in EGCS 1.2 and above.
 
 // ISO C99 also allows to declare arrays as non-overlapping.  The syntax is
 //      array_name[restrict]
 //    GCC 3.1 supports this.
 
 // Describes a char array whose address can safely be passed as the first
 //    argument to strncpy and strncat, as the char array is not necessarily
 //    a NUL-terminated string.
 
 // Undefine (also defined in libc-symbols.h).
 // Copies attributes from the declaration or type referenced by
 //    the argument.
 
 // Determine the wordsize from the preprocessor defines.
 
 // Properties of long double type.  ldbl-opt version.
 //    Copyright (C) 2016-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License  published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // __glibc_macro_warning (MESSAGE) issues warning MESSAGE.  This is
 //    intended for use in preprocessor macros.
 //
 //    Note: MESSAGE must be a _single_ string; concatenation of string
 //    literals is not supported.
 
 // Generic selection (ISO C11) is a C-only feature, available in GCC
 //    since version 4.9.  Previous versions do not provide generic
 //    selection, even though they might set __STDC_VERSION__ to 201112L,
 //    when in -std=c11 mode.  Thus, we must check for !defined __GNUC__
 //    when testing __STDC_VERSION__ for generic selection support.
 //    On the other hand, Clang also defines __GNUC__, so a clang-specific
 //    check is required to enable the use of generic selection.
 
 // If we don't have __REDIRECT, prototypes will be missing if
 //    __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64].
 
 // Decide whether we can define 'extern inline' functions in headers.
 
 // This is here only because every header file already includes this one.
 //    Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
 //    <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
 //    that will always return failure (and set errno to ENOSYS).
 // This file is automatically generated.
 //    This file selects the right generated file of `__stub_FUNCTION' macros
 //    based on the architecture being compiled for.
 
 // Determine the wordsize from the preprocessor defines.
 
 // This file is automatically generated.
 //    It defines a symbol `__stub_FUNCTION' for each function
 //    in the C library which is a stub, meaning it will fail
 //    every time called, usually setting errno to ENOSYS.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
 //    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Determine the wordsize from the preprocessor defines.
 
 // Bit size of the time_t type at glibc build time, general case.
 //    Copyright (C) 2018-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Determine the wordsize from the preprocessor defines.
 
 // Size in bits of the 'time_t' type of the default ABI.
 
 // Convenience types.
 type X__u_char = uint8   /* types.h:31:23 */
 type X__u_short = uint16 /* types.h:32:28 */
 type X__u_int = uint32   /* types.h:33:22 */
 type X__u_long = uint64  /* types.h:34:27 */
 
 // Fixed-size types, underlying types depend on word size and compiler.
 type X__int8_t = int8     /* types.h:37:21 */
 type X__uint8_t = uint8   /* types.h:38:23 */
 type X__int16_t = int16   /* types.h:39:26 */
 type X__uint16_t = uint16 /* types.h:40:28 */
 type X__int32_t = int32   /* types.h:41:20 */
 type X__uint32_t = uint32 /* types.h:42:22 */
 type X__int64_t = int64   /* types.h:44:25 */
 type X__uint64_t = uint64 /* types.h:45:27 */
 
 // Smallest types with at least a given width.
 type X__int_least8_t = X__int8_t     /* types.h:52:18 */
 type X__uint_least8_t = X__uint8_t   /* types.h:53:19 */
 type X__int_least16_t = X__int16_t   /* types.h:54:19 */
 type X__uint_least16_t = X__uint16_t /* types.h:55:20 */
 type X__int_least32_t = X__int32_t   /* types.h:56:19 */
 type X__uint_least32_t = X__uint32_t /* types.h:57:20 */
 type X__int_least64_t = X__int64_t   /* types.h:58:19 */
 type X__uint_least64_t = X__uint64_t /* types.h:59:20 */
 
 // quad_t is also 64 bits.
 type X__quad_t = int64    /* types.h:63:18 */
 type X__u_quad_t = uint64 /* types.h:64:27 */
 
 // Largest integral types.
 type X__intmax_t = int64   /* types.h:72:18 */
 type X__uintmax_t = uint64 /* types.h:73:27 */
 
 // The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
 //    macros for each of the OS types we define below.  The definitions
 //    of those macros must use the following macros for underlying types.
 //    We define __S<SIZE>_TYPE and __U<SIZE>_TYPE for the signed and unsigned
 //    variants of each of the following integer types on this machine.
 //
 // 	16		-- "natural" 16-bit type (always short)
 // 	32		-- "natural" 32-bit type (always int)
 // 	64		-- "natural" 64-bit type (long or long long)
 // 	LONG32		-- 32-bit type, traditionally long
 // 	QUAD		-- 64-bit type, traditionally long long
 // 	WORD		-- natural type of __WORDSIZE bits (int or long)
 // 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
 //
 //    We distinguish WORD/LONGWORD, 32/LONG32, and 64/QUAD so that the
 //    conventional uses of `long' or `long long' type modifiers match the
 //    types we define, even when a less-adorned type would be the same size.
 //    This matters for (somewhat) portably writing printf/scanf formats for
 //    these types, where using the appropriate l or ll format modifiers can
 //    make the typedefs and the formats match up across all GNU platforms.  If
 //    we used `long' when it's 64 bits where `long long' is expected, then the
 //    compiler would warn about the formats not matching the argument types,
 //    and the programmer changing them to shut up the compiler would break the
 //    program's portability.
 //
 //    Here we assume what is presently the case in all the GCC configurations
 //    we support: long long is always 64 bits, long is always word/address size,
 //    and int is always 32 bits.
 
 // No need to mark the typedef with __extension__.
 // bits/typesizes.h -- underlying types for *_t.  Linux/s390 version.
 //    Copyright (C) 2003-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // See <bits/types.h> for the meaning of these macros.  This file exists so
 //    that <bits/types.h> need not vary across different GNU platforms.
 
 // size_t is unsigned long int on s390 -m31.
 
 // Tell the libc code that off_t and off64_t are actually the same type
 //    for all ABI purposes, even if possibly expressed as different base types
 //    for C type-checking purposes.
 
 // Same for ino_t and ino64_t.
 
 // And for __rlim_t and __rlim64_t.
 
 // And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.
 
 // Number of descriptors that can fit in an `fd_set'.
 
 // bits/time64.h -- underlying types for __time64_t.  Generic version.
 //    Copyright (C) 2018-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Define __TIME64_T_TYPE so that it is always a 64-bit type.
 
 // If we already have 64-bit time type then use it.
 
 type X__dev_t = uint64                     /* types.h:145:25 */ // Type of device numbers.
 type X__uid_t = uint32                     /* types.h:146:25 */ // Type of user identifications.
 type X__gid_t = uint32                     /* types.h:147:25 */ // Type of group identifications.
 type X__ino_t = uint64                     /* types.h:148:25 */ // Type of file serial numbers.
 type X__ino64_t = uint64                   /* types.h:149:27 */ // Type of file serial numbers (LFS).
 type X__mode_t = uint32                    /* types.h:150:26 */ // Type of file attribute bitmasks.
 type X__nlink_t = uint64                   /* types.h:151:27 */ // Type of file link counts.
 type X__off_t = int64                      /* types.h:152:25 */ // Type of file sizes and offsets.
 type X__off64_t = int64                    /* types.h:153:27 */ // Type of file sizes and offsets (LFS).
 type X__pid_t = int32                      /* types.h:154:25 */ // Type of process identifications.
 type X__fsid_t = struct{ F__val [2]int32 } /* types.h:155:26 */ // Type of file system IDs.
 type X__clock_t = int64                    /* types.h:156:27 */ // Type of CPU usage counts.
 type X__rlim_t = uint64                    /* types.h:157:26 */ // Type for resource measurement.
 type X__rlim64_t = uint64                  /* types.h:158:28 */ // Type for resource measurement (LFS).
 type X__id_t = uint32                      /* types.h:159:24 */ // General type for IDs.
 type X__time_t = int64                     /* types.h:160:26 */ // Seconds since the Epoch.
 type X__useconds_t = uint32                /* types.h:161:30 */ // Count of microseconds.
 type X__suseconds_t = int64                /* types.h:162:31 */ // Signed count of microseconds.
 
 type X__daddr_t = int32 /* types.h:164:27 */ // The type of a disk address.
 type X__key_t = int32   /* types.h:165:25 */ // Type of an IPC key.
 
 // Clock ID used in clock and timer functions.
 type X__clockid_t = int32 /* types.h:168:29 */
 
 // Timer ID returned by `timer_create'.
 type X__timer_t = uintptr /* types.h:171:12 */
 
 // Type to represent block size.
 type X__blksize_t = int64 /* types.h:174:29 */
 
 // Types from the Large File Support interface.
 
 // Type to count number of disk blocks.
 type X__blkcnt_t = int64   /* types.h:179:28 */
 type X__blkcnt64_t = int64 /* types.h:180:30 */
 
 // Type to count file system blocks.
 type X__fsblkcnt_t = uint64   /* types.h:183:30 */
 type X__fsblkcnt64_t = uint64 /* types.h:184:32 */
 
 // Type to count file system nodes.
 type X__fsfilcnt_t = uint64   /* types.h:187:30 */
 type X__fsfilcnt64_t = uint64 /* types.h:188:32 */
 
 // Type of miscellaneous file system fields.
 type X__fsword_t = int64 /* types.h:191:28 */
 
 type X__ssize_t = int64 /* types.h:193:27 */ // Type of a byte count, or error.
 
 // Signed long type used in system calls.
 type X__syscall_slong_t = int64 /* types.h:196:33 */
 // Unsigned long type used in system calls.
 type X__syscall_ulong_t = uint64 /* types.h:198:33 */
 
 // These few don't really vary by system, they always correspond
 //
 //	to one of the other defined types.
 type X__loff_t = X__off64_t /* types.h:202:19 */ // Type of file sizes and offsets (LFS).
 type X__caddr_t = uintptr   /* types.h:203:14 */
 
 // Duplicates info from stdint.h but this is used in unistd.h.
 type X__intptr_t = int64 /* types.h:206:25 */
 
 // Duplicate info from sys/socket.h.
 type X__socklen_t = uint32 /* types.h:209:23 */
 
 // C99: An integer type that can be accessed as an atomic entity,
 //
 //	even in the presence of asynchronous interrupts.
 //	It is not currently necessary for this to be machine-specific.
 type X__sig_atomic_t = int32 /* types.h:214:13 */
 
 // Seconds since the Epoch, visible to user code when time_t is too
 //    narrow only for consistency with the old way of widening too-narrow
 //    types.  User code should never use __time64_t.
 
 // Signal number definitions.  Linux version.
 //    Copyright (C) 1995-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Signal number constants.  Generic template.
 //    Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Fake signal functions.
 
 // We define here all the signal names listed in POSIX (1003.1-2008);
 //    as of 1003.1-2013, no additional signals have been added by POSIX.
 //    We also define here signal names that historically exist in every
 //    real-world POSIX variant (e.g. SIGWINCH).
 //
 //    Signals in the 1-15 range are defined with their historical numbers.
 //    For other signals, we use the BSD numbers.
 //    There are two unallocated signal numbers in the 1-31 range: 7 and 29.
 //    Signal number 0 is reserved for use as kill(pid, 0), to test whether
 //    a process exists without sending it a signal.
 
 // ISO C99 signals.
 
 // Historical signals specified by POSIX.
 
 // New(er) POSIX signals (1003.1-2008, 1003.1-2013).
 
 // Nonstandard signals found in all modern POSIX systems
 //    (including both BSD and Linux).
 
 // Archaic names for compatibility.
 
 // Not all systems support real-time signals.  bits/signum.h indicates
 //    that they are supported by overriding __SIGRTMAX to a value greater
 //    than __SIGRTMIN.  These constants give the kernel-level hard limits,
 //    but some real-time signals may be used internally by glibc.  Do not
 //    use these constants in application code; use SIGRTMIN and SIGRTMAX
 //    (defined in signal.h) instead.
 
 // Biggest signal number + 1 (including real-time signals).
 
 // Adjustments and additions to the signal number constants for
 //    most Linux systems.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
 //    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // An integral type that can be modified atomically, without the
 //
 //	possibility of a signal arriving in the middle of the operation.
 type Sig_atomic_t = X__sig_atomic_t /* sig_atomic_t.h:8:24 */
 
 type X__sigset_t = struct{ F__val [16]uint64 } /* __sigset_t.h:8:3 */
 
 // A set of signals to be blocked, unblocked, or waited for.
 type Sigset_t = X__sigset_t /* sigset_t.h:7:20 */
 
 type Pid_t = X__pid_t /* signal.h:40:17 */
 type Uid_t = X__uid_t /* signal.h:46:17 */
 
 // We need `struct timespec' later on.
 // NB: Include guard matches what <linux/time.h> uses.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
 //    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // Endian macros for string.h functions
 //    Copyright (C) 1992-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <http://www.gnu.org/licenses/>.
 
 // Definitions for byte order, according to significance of bytes,
 //    from low addresses to high addresses.  The value is what you get by
 //    putting '4' in the most significant byte, '3' in the second most
 //    significant byte, '2' in the second least significant byte, and '1'
 //    in the least significant byte, and then writing down one digit for
 //    each byte, starting with the byte at the lowest address at the left,
 //    and proceeding to the byte with the highest address at the right.
 
 // This file defines `__BYTE_ORDER' for the particular machine.
 
 // S/390 is big-endian.
 
 // Some machines may need to use a different endianness for floating point
 //    values.
 
 // POSIX.1b structure for a time value.  This is like a `struct timeval' but
 //
 //	has nanoseconds instead of microseconds.
 type Timespec = struct {
 	Ftv_sec  X__time_t
 	Ftv_nsec X__syscall_slong_t
 } /* struct_timespec.h:10:1 */
 
 // Determine the wordsize from the preprocessor defines.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
 //    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // Define __sigval_t.
 //    Copyright (C) 1997-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Type for data associated with a signal.
 type Sigval = struct {
 	F__ccgo_pad1 [0]uint64
 	Fsival_int   int32
 	F__ccgo_pad2 [4]byte
 } /* __sigval_t.h:24:1 */
 
 type X__sigval_t = Sigval /* __sigval_t.h:30:22 */
 
 // Some fields of siginfo_t have architecture-specific variations.
 // Architecture-specific adjustments to siginfo_t.
 
 // This architecture has no adjustments to make to siginfo_t.
 
 type Siginfo_t = struct {
 	Fsi_signo  int32
 	Fsi_errno  int32
 	Fsi_code   int32
 	F__pad0    int32
 	F_sifields struct {
 		F__ccgo_pad1 [0]uint64
 		F_pad        [28]int32
 	}
 } /* siginfo_t.h:124:5 */
 
 // Architectures might also add architecture-specific constants.
 //    These are all considered GNU extensions.
 
 // Define __sigval_t.
 //    Copyright (C) 1997-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // To avoid sigval_t (not a standard type name) having C++ name
 //    mangling depending on whether the selected standard includes union
 //    sigval, it should not be defined at all when using a standard for
 //    which the sigval name is not reserved; in that case, headers should
 //    not include <bits/types/sigval_t.h> and should use only the
 //    internal __sigval_t name.
 
 type Sigval_t = X__sigval_t /* sigval_t.h:16:20 */
 
 // Determine the wordsize from the preprocessor defines.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
 //    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // Define __sigval_t.
 //    Copyright (C) 1997-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Forward declaration.
 type Pthread_attr_t1 = struct {
 	F__ccgo_pad1 [0]uint64
 	F__size      [56]uint8
 } /* sigevent_t.h:17:9 */
 
 // Determine the wordsize from the preprocessor defines.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
 //    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // Define __sigval_t.
 //    Copyright (C) 1997-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Forward declaration.
 type Pthread_attr_t = Pthread_attr_t1 /* sigevent_t.h:17:30 */
 
 // Structure to transport application-defined values with signals.
 type Sigevent = struct {
 	Fsigev_value  X__sigval_t
 	Fsigev_signo  int32
 	Fsigev_notify int32
 	F_sigev_un    struct {
 		F__ccgo_pad1 [0]uint64
 		F_pad        [12]int32
 	}
 } /* sigevent_t.h:22:9 */
 
 // Structure to transport application-defined values with signals.
 type Sigevent_t = Sigevent /* sigevent_t.h:42:5 */
 
 // Type of a signal handler.
 type X__sighandler_t = uintptr /* signal.h:72:14 */
 
 // 4.4 BSD uses the name `sig_t' for this.
 type Sig_t = X__sighandler_t /* signal.h:190:24 */
 
 // Get the system-specific definitions of `struct sigaction'
 //    and the `SA_*' and `SIG_*'. constants.
 // Definitions for 31 & 64 bit S/390 sigaction.
 //    Copyright (C) 2001-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Determine the wordsize from the preprocessor defines.
 
 // Structure describing the action to be taken when a signal arrives.
 type Sigaction = struct {
 	F__sigaction_handler struct{ Fsa_handler X__sighandler_t }
 	F__glibc_reserved0   int32
 	Fsa_flags            int32
 	Fsa_restorer         uintptr
 	Fsa_mask             X__sigset_t
 } /* sigaction.h:30:1 */
 
 // Get machine-dependent `struct sigcontext' and signal subcodes.
 // Copyright (C) 1996-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Kernel headers before 2.1.1 define a struct sigcontext_struct, but
 //    we need sigcontext.
 
 // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
 //  S390 version
 //    Copyright IBM Corp. 1999, 2000
 
 // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
 
 // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
 //  S390 version
 //
 //  Derived from "include/asm-i386/types.h"
 
 // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
 // asm-generic/int-ll64.h
 //
 // Integer declarations for architectures which use "long long"
 // for 64-bit types.
 
 // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
 
 // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
 
 // There seems to be no way of detecting this automatically from user
 // space, so 64 bit architectures should override this in their
 // bitsperlong.h. In particular, an architecture that supports
 // both 32 and 64 bit user space must not rely on CONFIG_64BIT
 // to decide it, but rather check a compiler provided macro.
 
 // __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
 // header files exported to user space
 
 type X__s8 = int8  /* int-ll64.h:20:25 */
 type X__u8 = uint8 /* int-ll64.h:21:23 */
 
 type X__s16 = int16  /* int-ll64.h:23:26 */
 type X__u16 = uint16 /* int-ll64.h:24:24 */
 
 type X__s32 = int32  /* int-ll64.h:26:24 */
 type X__u32 = uint32 /* int-ll64.h:27:22 */
 
 type X__s64 = int64  /* int-ll64.h:30:44 */
 type X__u64 = uint64 /* int-ll64.h:31:42 */
 
 // A address type so that arithmetic can be done on it & it can be upgraded to
 //
 //	64 bit when necessary
 type Addr_t = uint64 /* types.h:18:23 */
 type Saddr_t = int64 /* types.h:19:25 */
 
 type X__vector128 = struct{ Fu [4]X__u32 } /* types.h:23:3 */
 
 // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
 
 // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
 
 // This allows for 1024 file descriptors: if NR_OPEN is ever grown
 // beyond that you'll have to change this too. But 1024 fd's seem to be
 // enough even for such "real" unices like OSF/1, so hopefully this is
 // one limit that doesn't have to be changed [again].
 //
 // Note that POSIX wants the FD_CLEAR(fd,fdsetp) defines to be in
 // <sys/time.h> (and thus <linux/time.h>) - but this is a more logical
 // place for them. Solved by having dummy defines in <sys/time.h>.
 
 // This macro may have been defined in <gnu/types.h>. But we always
 // use the one here.
 
 type X__kernel_fd_set = struct{ Ffds_bits [16]uint64 } /* posix_types.h:27:3 */
 
 // Type of a signal handler.
 type X__kernel_sighandler_t = uintptr /* posix_types.h:30:14 */
 
 // Type of a SYSV IPC key.
 type X__kernel_key_t = int32 /* posix_types.h:33:13 */
 type X__kernel_mqd_t = int32 /* posix_types.h:34:13 */
 
 // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
 //  S390 version
 //
 
 // This file is generally used by user-level software, so you need to
 // be a little careful about namespace pollution etc.  Also, we cannot
 // assume GCC is being used.
 
 type X__kernel_size_t = uint64 /* posix_types.h:16:25 */
 type X__kernel_ssize_t = int64 /* posix_types.h:17:25 */
 
 type X__kernel_old_dev_t = uint16 /* posix_types.h:20:24 */
 
 type X__kernel_ino_t = uint32    /* posix_types.h:35:25 */
 type X__kernel_mode_t = uint32   /* posix_types.h:36:25 */
 type X__kernel_ipc_pid_t = int32 /* posix_types.h:37:25 */
 type X__kernel_uid_t = uint32    /* posix_types.h:38:25 */
 type X__kernel_gid_t = uint32    /* posix_types.h:39:25 */
 type X__kernel_ptrdiff_t = int64 /* posix_types.h:40:25 */
 type X__kernel_sigset_t = uint64 /* posix_types.h:41:25 */ // at least 32 bits
 
 // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
 
 // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
 
 // This file is generally used by user-level software, so you need to
 // be a little careful about namespace pollution etc.
 //
 // First the types that are often defined in different ways across
 // architectures, so that you can override them.
 
 type X__kernel_long_t = int64   /* posix_types.h:15:15 */
 type X__kernel_ulong_t = uint64 /* posix_types.h:16:23 */
 
 type X__kernel_pid_t = int32 /* posix_types.h:28:14 */
 
 type X__kernel_suseconds_t = X__kernel_long_t /* posix_types.h:41:26 */
 
 type X__kernel_daddr_t = int32 /* posix_types.h:45:14 */
 
 type X__kernel_uid32_t = uint32 /* posix_types.h:49:22 */
 type X__kernel_gid32_t = uint32 /* posix_types.h:50:22 */
 
 type X__kernel_old_uid_t = X__kernel_uid_t /* posix_types.h:54:24 */
 type X__kernel_old_gid_t = X__kernel_gid_t /* posix_types.h:55:24 */
 
 // Most 32 bit architectures use "unsigned int" size_t,
 // and all 64 bit architectures use "unsigned long" size_t.
 
 type X__kernel_fsid_t = struct{ Fval [2]int32 } /* posix_types.h:81:3 */
 
 // anything below here should be completely generic
 type X__kernel_off_t = X__kernel_long_t      /* posix_types.h:87:25 */
 type X__kernel_loff_t = int64                /* posix_types.h:88:19 */
 type X__kernel_old_time_t = X__kernel_long_t /* posix_types.h:89:25 */
 type X__kernel_time_t = X__kernel_long_t     /* posix_types.h:90:25 */
 type X__kernel_time64_t = int64              /* posix_types.h:91:19 */
 type X__kernel_clock_t = X__kernel_long_t    /* posix_types.h:92:25 */
 type X__kernel_timer_t = int32               /* posix_types.h:93:14 */
 type X__kernel_clockid_t = int32             /* posix_types.h:94:14 */
 type X__kernel_caddr_t = uintptr             /* posix_types.h:95:14 */
 type X__kernel_uid16_t = uint16              /* posix_types.h:96:24 */
 type X__kernel_gid16_t = uint16              /* posix_types.h:97:24 */
 
 // Below are truly Linux-specific types that should never collide with
 // any application/library that wants linux/types.h.
 
 type X__le16 = X__u16 /* types.h:24:25 */
 type X__be16 = X__u16 /* types.h:25:25 */
 type X__le32 = X__u32 /* types.h:26:25 */
 type X__be32 = X__u32 /* types.h:27:25 */
 type X__le64 = X__u64 /* types.h:28:25 */
 type X__be64 = X__u64 /* types.h:29:25 */
 
 type X__sum16 = X__u16 /* types.h:31:25 */
 type X__wsum = X__u32  /* types.h:32:25 */
 
 // aligned_u64 should be used in defining kernel<->userspace ABIs to avoid
 // common 32/64-bit compat problems.
 // 64-bit values align to 4-byte boundaries on x86_32 (and possibly other
 // architectures) and to 8-byte boundaries on 64-bit architectures.  The new
 // aligned_64 type enforces 8-byte alignment so that structs containing
 // aligned_64 values have the same alignment on 32-bit and 64-bit architectures.
 // No conversions are necessary between 32-bit user-space and a 64-bit kernel.
 
 type X__poll_t = uint32 /* types.h:47:28 */
 
 // Has to be at least _NSIG_WORDS from asm/signal.h
 // Size of stack frame allocated when calling signal handler.
 
 type X_psw_t = struct {
 	Fmask uint64
 	Faddr uint64
 } /* sigcontext.h:45:32 */
 
 type X_s390_regs_common = struct {
 	Fpsw  X_psw_t
 	Fgprs [16]uint64
 	Facrs [16]uint32
 } /* sigcontext.h:52:3 */
 
 type X_s390_fp_regs = struct {
 	Ffpc  uint32
 	Fpad  uint32
 	Ffprs [16]float64
 } /* sigcontext.h:59:3 */
 
 type X_sigregs = struct {
 	Fregs   X_s390_regs_common
 	Ffpregs X_s390_fp_regs
 } /* sigcontext.h:65:3 */
 
 type X_sigregs_ext = struct {
 	Fvxrs_low   [16]uint64
 	Fvxrs_high  [16]X__vector128
 	F__reserved [128]uint8
 } /* sigcontext.h:75:3 */
 
 type Sigcontext = struct {
 	Foldmask [1]uint64
 	Fsregs   uintptr
 } /* sigcontext.h:77:1 */
 
 // Wide character type.
 //    Locale-writers should change this as necessary to
 //    be big enough to hold unique values not between 0 and 127,
 //    and not (wchar_t) -1, for each defined multibyte character.
 
 // Define this type if we are doing the whole job,
 //    or if we want this type in particular.
 
 // A null pointer constant.
 
 // Define stack_t.  Linux version.
 //    Copyright (C) 1998-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Copyright (C) 1989-2020 Free Software Foundation, Inc.
 //
 // This file is part of GCC.
 //
 // GCC is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
 // the Free Software Foundation; either version 3, or (at your option)
 // any later version.
 //
 // GCC is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 // GNU General Public License for more details.
 //
 // Under Section 7 of GPL version 3, you are granted additional
 // permissions described in the GCC Runtime Library Exception, version
 // 3.1, as published by the Free Software Foundation.
 //
 // You should have received a copy of the GNU General Public License and
 // a copy of the GCC Runtime Library Exception along with this program;
 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 // <http://www.gnu.org/licenses/>.
 
 // ISO C Standard:  7.17  Common definitions  <stddef.h>
 
 // Any one of these symbols __need_* means that GNU libc
 //    wants us just to define one data type.  So don't define
 //    the symbols that indicate this file's entire job has been done.
 
 // This avoids lossage on SunOS but only if stdtypes.h comes first.
 //    There's no way to win with the other order!  Sun lossage.
 
 // Sequent's header files use _PTRDIFF_T_ in some conflicting way.
 //    Just ignore it.
 
 // On VxWorks, <type/vxTypesBase.h> may have defined macros like
 //    _TYPE_size_t which will typedef size_t.  fixincludes patched the
 //    vxTypesBase.h so that this macro is only defined if _GCC_SIZE_T is
 //    not defined, and so that defining this macro defines _GCC_SIZE_T.
 //    If we find that the macros are still defined at this point, we must
 //    invoke them so that the type is defined as expected.
 
 // In case nobody has defined these types, but we aren't running under
 //    GCC 2.00, make sure that __PTRDIFF_TYPE__, __SIZE_TYPE__, and
 //    __WCHAR_TYPE__ have reasonable values.  This can happen if the
 //    parts of GCC is compiled by an older compiler, that actually
 //    include gstddef.h, such as collect2.
 
 // Signed type of difference of two pointers.
 
 // Define this type if we are doing the whole job,
 //    or if we want this type in particular.
 
 // Unsigned type of `sizeof' something.
 
 // Define this type if we are doing the whole job,
 //    or if we want this type in particular.
 
 // Wide character type.
 //    Locale-writers should change this as necessary to
 //    be big enough to hold unique values not between 0 and 127,
 //    and not (wchar_t) -1, for each defined multibyte character.
 
 // Define this type if we are doing the whole job,
 //    or if we want this type in particular.
 
 // A null pointer constant.
 
 // Structure describing a signal stack.
 type Stack_t = struct {
 	Fss_sp       uintptr
 	Fss_flags    int32
 	F__ccgo_pad1 [4]byte
 	Fss_size     Size_t
 } /* stack_t.h:31:5 */
 
 // This will define `ucontext_t' and `mcontext_t'.
 // Copyright (C) 2000-2020 Free Software Foundation, Inc.
 //    Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Define stack_t.  Linux version.
 //    Copyright (C) 1998-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Type for a program status word.
 type X__psw_t = struct {
 	Fmask uint64
 	Faddr uint64
 } /* ucontext.h:39:36 */
 
 // Type for a general-purpose register.
 type Greg_t = uint64 /* ucontext.h:42:23 */
 
 // And the whole bunch of them.  We should have used `struct s390_regs',
 //
 //	but to avoid name space pollution and since the tradition says that
 //	the register set is an array, we make gregset_t a simple array
 //	that has the same size as s390_regs.  This is needed for the
 //	elf_prstatus structure.
 //
 // Must match kernels psw_t alignment.
 type Gregset_t = [27]Greg_t /* ucontext.h:58:16 */
 
 type Fpreg_t = struct{ Fd float64 } /* ucontext.h:64:5 */
 
 // Register set for the floating-point registers.
 type Fpregset_t = struct {
 	Ffpc         uint32
 	F__ccgo_pad1 [4]byte
 	Ffprs        [16]Fpreg_t
 } /* ucontext.h:71:5 */
 
 // Context to describe whole processor state.
 type Mcontext_t = struct {
 	Fpsw    X__psw_t
 	Fgregs  [16]uint64
 	Faregs  [16]uint32
 	Ffpregs Fpregset_t
 } /* ucontext.h:80:5 */
 
 // Userlevel context.
 type Ucontext_t1 = struct {
 	Fuc_flags    uint64
 	Fuc_link     uintptr
 	Fuc_stack    Stack_t
 	Fuc_mcontext Mcontext_t
 	Fuc_sigmask  Sigset_t
 } /* ucontext.h:83:9 */
 
 // Userlevel context.
 type Ucontext_t = Ucontext_t1 /* ucontext.h:90:5 */
 
 // Define struct sigstack.
 //    Copyright (C) 1998-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Structure describing a signal stack (obsolete).
 type Sigstack = struct {
 	Fss_sp       uintptr
 	Fss_onstack  int32
 	F__ccgo_pad1 [4]byte
 } /* struct_sigstack.h:23:1 */
 
 // Some of the functions for handling signals in threaded programs must
 //    be defined here.
 // Declaration of common pthread types for all architectures.
 //    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // For internal mutex and condition variable definitions.
 // Common threading primitives definitions for both POSIX and C11.
 //    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Arch-specific definitions.  Each architecture must define the following
 //    macros to define the expected sizes of pthread data types:
 //
 //    __SIZEOF_PTHREAD_ATTR_T        - size of pthread_attr_t.
 //    __SIZEOF_PTHREAD_MUTEX_T       - size of pthread_mutex_t.
 //    __SIZEOF_PTHREAD_MUTEXATTR_T   - size of pthread_mutexattr_t.
 //    __SIZEOF_PTHREAD_COND_T        - size of pthread_cond_t.
 //    __SIZEOF_PTHREAD_CONDATTR_T    - size of pthread_condattr_t.
 //    __SIZEOF_PTHREAD_RWLOCK_T      - size of pthread_rwlock_t.
 //    __SIZEOF_PTHREAD_RWLOCKATTR_T  - size of pthread_rwlockattr_t.
 //    __SIZEOF_PTHREAD_BARRIER_T     - size of pthread_barrier_t.
 //    __SIZEOF_PTHREAD_BARRIERATTR_T - size of pthread_barrierattr_t.
 //
 //    The additional macro defines any constraint for the lock alignment
 //    inside the thread structures:
 //
 //    __LOCK_ALIGNMENT - for internal lock/futex usage.
 //
 //    Same idea but for the once locking primitive:
 //
 //    __ONCE_ALIGNMENT - for pthread_once_t/once_flag definition.
 
 // Machine-specific pthread type layouts.  Generic version.
 //    Copyright (C) 2019-2020 Free Software Foundation, Inc.
 //
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <http://www.gnu.org/licenses/>.
 
 // Determine the wordsize from the preprocessor defines.
 
 // Common definition of pthread_mutex_t.
 
 type X__pthread_internal_list = struct {
 	F__prev uintptr
 	F__next uintptr
 } /* thread-shared-types.h:49:9 */
 
 // Some of the functions for handling signals in threaded programs must
 //    be defined here.
 // Declaration of common pthread types for all architectures.
 //    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // For internal mutex and condition variable definitions.
 // Common threading primitives definitions for both POSIX and C11.
 //    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 // Arch-specific definitions.  Each architecture must define the following
 //    macros to define the expected sizes of pthread data types:
 //
 //    __SIZEOF_PTHREAD_ATTR_T        - size of pthread_attr_t.
 //    __SIZEOF_PTHREAD_MUTEX_T       - size of pthread_mutex_t.
 //    __SIZEOF_PTHREAD_MUTEXATTR_T   - size of pthread_mutexattr_t.
 //    __SIZEOF_PTHREAD_COND_T        - size of pthread_cond_t.
 //    __SIZEOF_PTHREAD_CONDATTR_T    - size of pthread_condattr_t.
 //    __SIZEOF_PTHREAD_RWLOCK_T      - size of pthread_rwlock_t.
 //    __SIZEOF_PTHREAD_RWLOCKATTR_T  - size of pthread_rwlockattr_t.
 //    __SIZEOF_PTHREAD_BARRIER_T     - size of pthread_barrier_t.
 //    __SIZEOF_PTHREAD_BARRIERATTR_T - size of pthread_barrierattr_t.
 //
 //    The additional macro defines any constraint for the lock alignment
 //    inside the thread structures:
 //
 //    __LOCK_ALIGNMENT - for internal lock/futex usage.
 //
 //    Same idea but for the once locking primitive:
 //
 //    __ONCE_ALIGNMENT - for pthread_once_t/once_flag definition.
 
 // Machine-specific pthread type layouts.  Generic version.
 //    Copyright (C) 2019-2020 Free Software Foundation, Inc.
 //
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <http://www.gnu.org/licenses/>.
 
 // Determine the wordsize from the preprocessor defines.
 
 // Common definition of pthread_mutex_t.
 
 type X__pthread_list_t = X__pthread_internal_list /* thread-shared-types.h:53:3 */
 
 type X__pthread_internal_slist = struct{ F__next uintptr } /* thread-shared-types.h:55:9 */
 
 type X__pthread_slist_t = X__pthread_internal_slist /* thread-shared-types.h:58:3 */
 
 // Arch-specific mutex definitions.  A generic implementation is provided
 //    by sysdeps/nptl/bits/struct_mutex.h.  If required, an architecture
 //    can override it by defining:
 //
 //    1. struct __pthread_mutex_s (used on both pthread_mutex_t and mtx_t
 //       definition).  It should contains at least the internal members
 //       defined in the generic version.
 //
 //    2. __LOCK_ALIGNMENT for any extra attribute for internal lock used with
 //       atomic operations.
 //
 //    3. The macro __PTHREAD_MUTEX_INITIALIZER used for static initialization.
 //       It should initialize the mutex internal flag.
 
 // S390 internal mutex struct definitions.
 //    Copyright (C) 2019-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <http://www.gnu.org/licenses/>.
 
 type X__pthread_mutex_s = struct {
 	F__lock    int32
 	F__count   uint32
 	F__owner   int32
 	F__nusers  uint32
 	F__kind    int32
 	F__spins   int16
 	F__elision int16
 	F__list    X__pthread_list_t
 } /* struct_mutex.h:22:1 */
 
 // Arch-sepecific read-write lock definitions.  A generic implementation is
 //    provided by struct_rwlock.h.  If required, an architecture can override it
 //    by defining:
 //
 //    1. struct __pthread_rwlock_arch_t (used on pthread_rwlock_t definition).
 //       It should contain at least the internal members defined in the
 //       generic version.
 //
 //    2. The macro __PTHREAD_RWLOCK_INITIALIZER used for static initialization.
 //       It should initialize the rwlock internal type.
 
 // S390 internal rwlock struct definitions.
 //    Copyright (C) 2019-2020 Free Software Foundation, Inc.
 //
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <http://www.gnu.org/licenses/>.
 
 type X__pthread_rwlock_arch_t = struct {
 	F__readers       uint32
 	F__writers       uint32
 	F__wrphase_futex uint32
 	F__writers_futex uint32
 	F__pad3          uint32
 	F__pad4          uint32
 	F__cur_writer    int32
 	F__shared        int32
 	F__pad1          uint64
 	F__pad2          uint64
 	F__flags         uint32
 	F__ccgo_pad1     [4]byte
 } /* struct_rwlock.h:23:1 */
 
 // Common definition of pthread_cond_t.
 
 type X__pthread_cond_s = struct {
 	F__0            struct{ F__wseq uint64 }
 	F__8            struct{ F__g1_start uint64 }
 	F__g_refs       [2]uint32
 	F__g_size       [2]uint32
 	F__g1_orig_size uint32
 	F__wrefs        uint32
 	F__g_signals    [2]uint32
 } /* thread-shared-types.h:92:1 */
 
 // Thread identifiers.  The structure of the attribute type is not
 //
 //	exposed on purpose.
 type Pthread_t = uint64 /* pthreadtypes.h:27:27 */
 
 // Data structures for mutex handling.  The structure of the attribute
 //
 //	type is not exposed on purpose.
 type Pthread_mutexattr_t = struct {
 	F__ccgo_pad1 [0]uint32
 	F__size      [4]uint8
 } /* pthreadtypes.h:36:3 */
 
 // Data structure for condition variable handling.  The structure of
 //
 //	the attribute type is not exposed on purpose.
 type Pthread_condattr_t = struct {
 	F__ccgo_pad1 [0]uint32
 	F__size      [4]uint8
 } /* pthreadtypes.h:45:3 */
 
 // Keys for thread-specific data
 type Pthread_key_t = uint32 /* pthreadtypes.h:49:22 */
 
 // Once-only execution
 type Pthread_once_t = int32 /* pthreadtypes.h:53:30 */
 
 type Pthread_mutex_t = struct{ F__data X__pthread_mutex_s } /* pthreadtypes.h:72:3 */
 
 type Pthread_cond_t = struct{ F__data X__pthread_cond_s } /* pthreadtypes.h:80:3 */
 
 // Data structure for reader-writer lock variable handling.  The
 //
 //	structure of the attribute type is deliberately not exposed.
 type Pthread_rwlock_t = struct{ F__data X__pthread_rwlock_arch_t } /* pthreadtypes.h:91:3 */
 
 type Pthread_rwlockattr_t = struct {
 	F__ccgo_pad1 [0]uint64
 	F__size      [8]uint8
 } /* pthreadtypes.h:97:3 */
 
 // POSIX spinlock data type.
 type Pthread_spinlock_t = int32 /* pthreadtypes.h:103:22 */
 
 // POSIX barriers data type.  The structure of the type is
 //
 //	deliberately not exposed.
 type Pthread_barrier_t = struct {
 	F__ccgo_pad1 [0]uint64
 	F__size      [32]uint8
 } /* pthreadtypes.h:112:3 */
 
 type Pthread_barrierattr_t = struct {
 	F__ccgo_pad1 [0]uint32
 	F__size      [4]uint8
 } /* pthreadtypes.h:118:3 */
 
 // System-specific extensions.
 // System-specific extensions of <signal.h>, Linux version.
 //    Copyright (C) 2019-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
 //    modify it under the terms of the GNU Lesser General Public
 //    License as published by the Free Software Foundation; either
 //    version 2.1 of the License, or (at your option) any later version.
 //
 //    The GNU C Library is distributed in the hope that it will be useful,
 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
 //    <https://www.gnu.org/licenses/>.
 
 var _ uint8 /* gen.c:2:13: */