github.com/afumu/libc@v0.0.6/poll/poll_linux_arm64.go (about)

     1  // Code generated by 'ccgo poll/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 poll/poll_linux_arm64.go -pkgname poll', DO NOT EDIT.
     2  
     3  package poll
     4  
     5  import (
     6  	"math"
     7  	"reflect"
     8  	"sync/atomic"
     9  	"unsafe"
    10  )
    11  
    12  var _ = math.Pi
    13  var _ reflect.Kind
    14  var _ atomic.Value
    15  var _ unsafe.Pointer
    16  
    17  const (
    18  	POLLERR            = 0x008
    19  	POLLHUP            = 0x010
    20  	POLLIN             = 0x001
    21  	POLLNVAL           = 0x020
    22  	POLLOUT            = 0x004
    23  	POLLPRI            = 0x002
    24  	POLLRDBAND         = 0x080
    25  	POLLRDNORM         = 0x040
    26  	POLLWRBAND         = 0x200
    27  	POLLWRNORM         = 0x100
    28  	X_ATFILE_SOURCE    = 1
    29  	X_DEFAULT_SOURCE   = 1
    30  	X_FEATURES_H       = 1
    31  	X_FILE_OFFSET_BITS = 64
    32  	X_LP64             = 1
    33  	X_POSIX_C_SOURCE   = 200809
    34  	X_POSIX_SOURCE     = 1
    35  	X_STDC_PREDEF_H    = 1
    36  	X_SYS_CDEFS_H      = 1
    37  	X_SYS_POLL_H       = 1
    38  	Linux              = 1
    39  	Unix               = 1
    40  )
    41  
    42  type Ptrdiff_t = int64 /* <builtin>:3:26 */
    43  
    44  type Size_t = uint64 /* <builtin>:9:23 */
    45  
    46  type Wchar_t = uint32 /* <builtin>:15:24 */
    47  
    48  type X__int128_t = struct {
    49  	Flo int64
    50  	Fhi int64
    51  } /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
    52  type X__uint128_t = struct {
    53  	Flo uint64
    54  	Fhi uint64
    55  } /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
    56  
    57  type X__builtin_va_list = uintptr /* <builtin>:46:14 */
    58  type X__float128 = float64        /* <builtin>:47:21 */
    59  
    60  // Compatibility definitions for System V `poll' interface.
    61  //    Copyright (C) 1994-2020 Free Software Foundation, Inc.
    62  //    This file is part of the GNU C Library.
    63  //
    64  //    The GNU C Library is free software; you can redistribute it and/or
    65  //    modify it under the terms of the GNU Lesser General Public
    66  //    License as published by the Free Software Foundation; either
    67  //    version 2.1 of the License, or (at your option) any later version.
    68  //
    69  //    The GNU C Library is distributed in the hope that it will be useful,
    70  //    but WITHOUT ANY WARRANTY; without even the implied warranty of
    71  //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    72  //    Lesser General Public License for more details.
    73  //
    74  //    You should have received a copy of the GNU Lesser General Public
    75  //    License along with the GNU C Library; if not, see
    76  //    <https://www.gnu.org/licenses/>.
    77  
    78  // Copyright (C) 1991-2020 Free Software Foundation, Inc.
    79  //    This file is part of the GNU C Library.
    80  //
    81  //    The GNU C Library is free software; you can redistribute it and/or
    82  //    modify it under the terms of the GNU Lesser General Public
    83  //    License as published by the Free Software Foundation; either
    84  //    version 2.1 of the License, or (at your option) any later version.
    85  //
    86  //    The GNU C Library is distributed in the hope that it will be useful,
    87  //    but WITHOUT ANY WARRANTY; without even the implied warranty of
    88  //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    89  //    Lesser General Public License for more details.
    90  //
    91  //    You should have received a copy of the GNU Lesser General Public
    92  //    License along with the GNU C Library; if not, see
    93  //    <https://www.gnu.org/licenses/>.
    94  
    95  // These are defined by the user (or the compiler)
    96  //    to specify the desired environment:
    97  //
    98  //    __STRICT_ANSI__	ISO Standard C.
    99  //    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
   100  //    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
   101  //    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
   102  //    __STDC_WANT_LIB_EXT2__
   103  // 			Extensions to ISO C99 from TR 27431-2:2010.
   104  //    __STDC_WANT_IEC_60559_BFP_EXT__
   105  // 			Extensions to ISO C11 from TS 18661-1:2014.
   106  //    __STDC_WANT_IEC_60559_FUNCS_EXT__
   107  // 			Extensions to ISO C11 from TS 18661-4:2015.
   108  //    __STDC_WANT_IEC_60559_TYPES_EXT__
   109  // 			Extensions to ISO C11 from TS 18661-3:2015.
   110  //
   111  //    _POSIX_SOURCE	IEEE Std 1003.1.
   112  //    _POSIX_C_SOURCE	If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
   113  // 			if >=199309L, add IEEE Std 1003.1b-1993;
   114  // 			if >=199506L, add IEEE Std 1003.1c-1995;
   115  // 			if >=200112L, all of IEEE 1003.1-2004
   116  // 			if >=200809L, all of IEEE 1003.1-2008
   117  //    _XOPEN_SOURCE	Includes POSIX and XPG things.  Set to 500 if
   118  // 			Single Unix conformance is wanted, to 600 for the
   119  // 			sixth revision, to 700 for the seventh revision.
   120  //    _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
   121  //    _LARGEFILE_SOURCE	Some more functions for correct standard I/O.
   122  //    _LARGEFILE64_SOURCE	Additional functionality from LFS for large files.
   123  //    _FILE_OFFSET_BITS=N	Select default filesystem interface.
   124  //    _ATFILE_SOURCE	Additional *at interfaces.
   125  //    _GNU_SOURCE		All of the above, plus GNU extensions.
   126  //    _DEFAULT_SOURCE	The default set of features (taking precedence over
   127  // 			__STRICT_ANSI__).
   128  //
   129  //    _FORTIFY_SOURCE	Add security hardening to many library functions.
   130  // 			Set to 1 or 2; 2 performs stricter checks than 1.
   131  //
   132  //    _REENTRANT, _THREAD_SAFE
   133  // 			Obsolete; equivalent to _POSIX_C_SOURCE=199506L.
   134  //
   135  //    The `-ansi' switch to the GNU C compiler, and standards conformance
   136  //    options such as `-std=c99', define __STRICT_ANSI__.  If none of
   137  //    these are defined, or if _DEFAULT_SOURCE is defined, the default is
   138  //    to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
   139  //    200809L, as well as enabling miscellaneous functions from BSD and
   140  //    SVID.  If more than one of these are defined, they accumulate.  For
   141  //    example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together
   142  //    give you ISO C, 1003.1, and 1003.2, but nothing else.
   143  //
   144  //    These are defined by this file and are used by the
   145  //    header files to decide what to declare or define:
   146  //
   147  //    __GLIBC_USE (F)	Define things from feature set F.  This is defined
   148  // 			to 1 or 0; the subsequent macros are either defined
   149  // 			or undefined, and those tests should be moved to
   150  // 			__GLIBC_USE.
   151  //    __USE_ISOC11		Define ISO C11 things.
   152  //    __USE_ISOC99		Define ISO C99 things.
   153  //    __USE_ISOC95		Define ISO C90 AMD1 (C95) things.
   154  //    __USE_ISOCXX11	Define ISO C++11 things.
   155  //    __USE_POSIX		Define IEEE Std 1003.1 things.
   156  //    __USE_POSIX2		Define IEEE Std 1003.2 things.
   157  //    __USE_POSIX199309	Define IEEE Std 1003.1, and .1b things.
   158  //    __USE_POSIX199506	Define IEEE Std 1003.1, .1b, .1c and .1i things.
   159  //    __USE_XOPEN		Define XPG things.
   160  //    __USE_XOPEN_EXTENDED	Define X/Open Unix things.
   161  //    __USE_UNIX98		Define Single Unix V2 things.
   162  //    __USE_XOPEN2K        Define XPG6 things.
   163  //    __USE_XOPEN2KXSI     Define XPG6 XSI things.
   164  //    __USE_XOPEN2K8       Define XPG7 things.
   165  //    __USE_XOPEN2K8XSI    Define XPG7 XSI things.
   166  //    __USE_LARGEFILE	Define correct standard I/O things.
   167  //    __USE_LARGEFILE64	Define LFS things with separate names.
   168  //    __USE_FILE_OFFSET64	Define 64bit interface as default.
   169  //    __USE_MISC		Define things from 4.3BSD or System V Unix.
   170  //    __USE_ATFILE		Define *at interfaces and AT_* constants for them.
   171  //    __USE_GNU		Define GNU extensions.
   172  //    __USE_FORTIFY_LEVEL	Additional security measures used, according to level.
   173  //
   174  //    The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
   175  //    defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
   176  //    only for compatibility.  All new code should use the other symbols
   177  //    to test for features.
   178  //
   179  //    All macros listed above as possibly being defined by this file are
   180  //    explicitly undefined if they are not explicitly defined.
   181  //    Feature-test macros that are not defined by the user or compiler
   182  //    but are implied by the other feature-test macros defined (or by the
   183  //    lack of any definitions) are defined by the file.
   184  //
   185  //    ISO C feature test macros depend on the definition of the macro
   186  //    when an affected header is included, not when the first system
   187  //    header is included, and so they are handled in
   188  //    <bits/libc-header-start.h>, which does not have a multiple include
   189  //    guard.  Feature test macros that can be handled from the first
   190  //    system header included are handled here.
   191  
   192  // Undefine everything, so we get a clean slate.
   193  
   194  // Suppress kernel-name space pollution unless user expressedly asks
   195  //    for it.
   196  
   197  // Convenience macro to test the version of gcc.
   198  //    Use like this:
   199  //    #if __GNUC_PREREQ (2,8)
   200  //    ... code requiring gcc 2.8 or later ...
   201  //    #endif
   202  //    Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was
   203  //    added in 2.0.
   204  
   205  // Similarly for clang.  Features added to GCC after version 4.2 may
   206  //    or may not also be available in clang, and clang's definitions of
   207  //    __GNUC(_MINOR)__ are fixed at 4 and 2 respectively.  Not all such
   208  //    features can be queried via __has_extension/__has_feature.
   209  
   210  // Whether to use feature set F.
   211  
   212  // _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for
   213  //    _DEFAULT_SOURCE.  If _DEFAULT_SOURCE is present we do not
   214  //    issue a warning; the expectation is that the source is being
   215  //    transitioned to use the new macro.
   216  
   217  // If _GNU_SOURCE was defined by the user, turn on all the other features.
   218  
   219  // If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
   220  //    define _DEFAULT_SOURCE.
   221  
   222  // This is to enable the ISO C2X extension.
   223  
   224  // This is to enable the ISO C11 extension.
   225  
   226  // This is to enable the ISO C99 extension.
   227  
   228  // This is to enable the ISO C90 Amendment 1:1995 extension.
   229  
   230  // If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE
   231  //    is defined, use POSIX.1-2008 (or another version depending on
   232  //    _XOPEN_SOURCE).
   233  
   234  // Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
   235  //    defined in all multithreaded code.  GNU libc has not required this
   236  //    for many years.  We now treat them as compatibility synonyms for
   237  //    _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with
   238  //    comprehensive support for multithreaded code.  Using them never
   239  //    lowers the selected level of POSIX conformance, only raises it.
   240  
   241  // The function 'gets' existed in C89, but is impossible to use
   242  //    safely.  It has been removed from ISO C11 and ISO C++14.  Note: for
   243  //    compatibility with various implementations of <cstdio>, this test
   244  //    must consider only the value of __cplusplus when compiling C++.
   245  
   246  // GNU formerly extended the scanf functions with modified format
   247  //    specifiers %as, %aS, and %a[...] that allocate a buffer for the
   248  //    input using malloc.  This extension conflicts with ISO C99, which
   249  //    defines %a as a standalone format specifier that reads a floating-
   250  //    point number; moreover, POSIX.1-2008 provides the same feature
   251  //    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
   252  //
   253  //    We now follow C99 unless GNU extensions are active and the compiler
   254  //    is specifically in C89 or C++98 mode (strict or not).  For
   255  //    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
   256  //    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
   257  //    old extension.
   258  
   259  // Get definitions of __STDC_* predefined macros, if the compiler has
   260  //    not preincluded this header automatically.
   261  // Copyright (C) 1991-2020 Free Software Foundation, Inc.
   262  //    This file is part of the GNU C Library.
   263  //
   264  //    The GNU C Library is free software; you can redistribute it and/or
   265  //    modify it under the terms of the GNU Lesser General Public
   266  //    License as published by the Free Software Foundation; either
   267  //    version 2.1 of the License, or (at your option) any later version.
   268  //
   269  //    The GNU C Library is distributed in the hope that it will be useful,
   270  //    but WITHOUT ANY WARRANTY; without even the implied warranty of
   271  //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   272  //    Lesser General Public License for more details.
   273  //
   274  //    You should have received a copy of the GNU Lesser General Public
   275  //    License along with the GNU C Library; if not, see
   276  //    <https://www.gnu.org/licenses/>.
   277  
   278  // This macro indicates that the installed library is the GNU C Library.
   279  //    For historic reasons the value now is 6 and this will stay from now
   280  //    on.  The use of this variable is deprecated.  Use __GLIBC__ and
   281  //    __GLIBC_MINOR__ now (see below) when you want to test for a specific
   282  //    GNU C library version and use the values in <gnu/lib-names.h> to get
   283  //    the sonames of the shared libraries.
   284  
   285  // Major and minor version number of the GNU C library package.  Use
   286  //    these macros to test for features in specific releases.
   287  
   288  // This is here only because every header file already includes this one.
   289  // Copyright (C) 1992-2020 Free Software Foundation, Inc.
   290  //    This file is part of the GNU C Library.
   291  //
   292  //    The GNU C Library is free software; you can redistribute it and/or
   293  //    modify it under the terms of the GNU Lesser General Public
   294  //    License as published by the Free Software Foundation; either
   295  //    version 2.1 of the License, or (at your option) any later version.
   296  //
   297  //    The GNU C Library is distributed in the hope that it will be useful,
   298  //    but WITHOUT ANY WARRANTY; without even the implied warranty of
   299  //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   300  //    Lesser General Public License for more details.
   301  //
   302  //    You should have received a copy of the GNU Lesser General Public
   303  //    License along with the GNU C Library; if not, see
   304  //    <https://www.gnu.org/licenses/>.
   305  
   306  // We are almost always included from features.h.
   307  
   308  // The GNU libc does not support any K&R compilers or the traditional mode
   309  //    of ISO C compilers anymore.  Check for some of the combinations not
   310  //    anymore supported.
   311  
   312  // Some user header file might have defined this before.
   313  
   314  // All functions, except those with callbacks or those that
   315  //    synchronize memory, are leaf functions.
   316  
   317  // GCC can always grok prototypes.  For C++ programs we add throw()
   318  //    to help it optimize the function calls.  But this works only with
   319  //    gcc 2.8.x and egcs.  For gcc 3.2 and up we even mark C functions
   320  //    as non-throwing using a function attribute since programs can use
   321  //    the -fexceptions options for C code as well.
   322  
   323  // Compilers that are not clang may object to
   324  //        #if defined __clang__ && __has_extension(...)
   325  //    even though they do not need to evaluate the right-hand side of the &&.
   326  
   327  // These two macros are not used in glibc anymore.  They are kept here
   328  //    only because some other projects expect the macros to be defined.
   329  
   330  // For these things, GCC behaves the ANSI way normally,
   331  //    and the non-ANSI way under -traditional.
   332  
   333  // This is not a typedef so `const __ptr_t' does the right thing.
   334  
   335  // C++ needs to know that types and declarations are C, not C++.
   336  
   337  // Fortify support.
   338  
   339  // Support for flexible arrays.
   340  //    Headers that should use flexible arrays only if they're "real"
   341  //    (e.g. only if they won't affect sizeof()) should test
   342  //    #if __glibc_c99_flexarr_available.
   343  
   344  // __asm__ ("xyz") is used throughout the headers to rename functions
   345  //    at the assembly language level.  This is wrapped by the __REDIRECT
   346  //    macro, in order to support compilers that can do this some other
   347  //    way.  When compilers don't support asm-names at all, we have to do
   348  //    preprocessor tricks instead (which don't have exactly the right
   349  //    semantics, but it's the best we can do).
   350  //
   351  //    Example:
   352  //    int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid);
   353  
   354  //
   355  // #elif __SOME_OTHER_COMPILER__
   356  //
   357  // # define __REDIRECT(name, proto, alias) name proto; 	_Pragma("let " #name " = " #alias)
   358  
   359  // GCC has various useful declarations that can be made with the
   360  //    `__attribute__' syntax.  All of the ways we use this do fine if
   361  //    they are omitted for compilers that don't understand it.
   362  
   363  // At some point during the gcc 2.96 development the `malloc' attribute
   364  //    for functions was introduced.  We don't want to use it unconditionally
   365  //    (although this would be possible) since it generates warnings.
   366  
   367  // Tell the compiler which arguments to an allocation function
   368  //    indicate the size of the allocation.
   369  
   370  // At some point during the gcc 2.96 development the `pure' attribute
   371  //    for functions was introduced.  We don't want to use it unconditionally
   372  //    (although this would be possible) since it generates warnings.
   373  
   374  // This declaration tells the compiler that the value is constant.
   375  
   376  // At some point during the gcc 3.1 development the `used' attribute
   377  //    for functions was introduced.  We don't want to use it unconditionally
   378  //    (although this would be possible) since it generates warnings.
   379  
   380  // Since version 3.2, gcc allows marking deprecated functions.
   381  
   382  // Since version 4.5, gcc also allows one to specify the message printed
   383  //    when a deprecated function is used.  clang claims to be gcc 4.2, but
   384  //    may also support this feature.
   385  
   386  // At some point during the gcc 2.8 development the `format_arg' attribute
   387  //    for functions was introduced.  We don't want to use it unconditionally
   388  //    (although this would be possible) since it generates warnings.
   389  //    If several `format_arg' attributes are given for the same function, in
   390  //    gcc-3.0 and older, all but the last one are ignored.  In newer gccs,
   391  //    all designated arguments are considered.
   392  
   393  // At some point during the gcc 2.97 development the `strfmon' format
   394  //    attribute for functions was introduced.  We don't want to use it
   395  //    unconditionally (although this would be possible) since it
   396  //    generates warnings.
   397  
   398  // The nonull function attribute allows to mark pointer parameters which
   399  //    must not be NULL.
   400  
   401  // If fortification mode, we warn about unused results of certain
   402  //    function calls which can lead to problems.
   403  
   404  // Forces a function to be always inlined.
   405  // The Linux kernel defines __always_inline in stddef.h (283d7573), and
   406  //    it conflicts with this definition.  Therefore undefine it first to
   407  //    allow either header to be included first.
   408  
   409  // Associate error messages with the source location of the call site rather
   410  //    than with the source location inside the function.
   411  
   412  // GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
   413  //    inline semantics, unless -fgnu89-inline is used.  Using __GNUC_STDC_INLINE__
   414  //    or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
   415  //    older than 4.3 may define these macros and still not guarantee GNU inlining
   416  //    semantics.
   417  //
   418  //    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
   419  //    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
   420  //    __GNUC_GNU_INLINE__ macro definitions.
   421  
   422  // GCC 4.3 and above allow passing all anonymous arguments of an
   423  //    __extern_always_inline function to some other vararg function.
   424  
   425  // It is possible to compile containing GCC extensions even if GCC is
   426  //    run in pedantic mode if the uses are carefully marked using the
   427  //    `__extension__' keyword.  But this is not generally available before
   428  //    version 2.8.
   429  
   430  // __restrict is known in EGCS 1.2 and above.
   431  
   432  // ISO C99 also allows to declare arrays as non-overlapping.  The syntax is
   433  //      array_name[restrict]
   434  //    GCC 3.1 supports this.
   435  
   436  // Describes a char array whose address can safely be passed as the first
   437  //    argument to strncpy and strncat, as the char array is not necessarily
   438  //    a NUL-terminated string.
   439  
   440  // Undefine (also defined in libc-symbols.h).
   441  // Copies attributes from the declaration or type referenced by
   442  //    the argument.
   443  
   444  // Determine the wordsize from the preprocessor defines.
   445  //
   446  //    Copyright (C) 2016-2020 Free Software Foundation, Inc.
   447  //    This file is part of the GNU C Library.
   448  //
   449  //    The GNU C Library is free software; you can redistribute it and/or
   450  //    modify it under the terms of the GNU Lesser General Public
   451  //    License as published by the Free Software Foundation; either
   452  //    version 2.1 of the License, or (at your option) any later version.
   453  //
   454  //    The GNU C Library is distributed in the hope that it will be useful,
   455  //    but WITHOUT ANY WARRANTY; without even the implied warranty of
   456  //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   457  //    Lesser General Public License for more details.
   458  //
   459  //    You should have received a copy of the GNU Lesser General Public
   460  //    License along with the GNU C Library; if not, see
   461  //    <https://www.gnu.org/licenses/>.
   462  
   463  // Properties of long double type.  ldbl-128 version.
   464  //    Copyright (C) 2016-2020 Free Software Foundation, Inc.
   465  //    This file is part of the GNU C Library.
   466  //
   467  //    The GNU C Library is free software; you can redistribute it and/or
   468  //    modify it under the terms of the GNU Lesser General Public
   469  //    License  published by the Free Software Foundation; either
   470  //    version 2.1 of the License, or (at your option) any later version.
   471  //
   472  //    The GNU C Library is distributed in the hope that it will be useful,
   473  //    but WITHOUT ANY WARRANTY; without even the implied warranty of
   474  //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   475  //    Lesser General Public License for more details.
   476  //
   477  //    You should have received a copy of the GNU Lesser General Public
   478  //    License along with the GNU C Library; if not, see
   479  //    <https://www.gnu.org/licenses/>.
   480  
   481  // long double is distinct from double, so there is nothing to
   482  //    define here.
   483  
   484  // __glibc_macro_warning (MESSAGE) issues warning MESSAGE.  This is
   485  //    intended for use in preprocessor macros.
   486  //
   487  //    Note: MESSAGE must be a _single_ string; concatenation of string
   488  //    literals is not supported.
   489  
   490  // Generic selection (ISO C11) is a C-only feature, available in GCC
   491  //    since version 4.9.  Previous versions do not provide generic
   492  //    selection, even though they might set __STDC_VERSION__ to 201112L,
   493  //    when in -std=c11 mode.  Thus, we must check for !defined __GNUC__
   494  //    when testing __STDC_VERSION__ for generic selection support.
   495  //    On the other hand, Clang also defines __GNUC__, so a clang-specific
   496  //    check is required to enable the use of generic selection.
   497  
   498  // If we don't have __REDIRECT, prototypes will be missing if
   499  //    __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64].
   500  
   501  // Decide whether we can define 'extern inline' functions in headers.
   502  
   503  // This is here only because every header file already includes this one.
   504  //    Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
   505  //    <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
   506  //    that will always return failure (and set errno to ENOSYS).
   507  // This file is automatically generated.
   508  //    This file selects the right generated file of `__stub_FUNCTION' macros
   509  //    based on the architecture being compiled for.
   510  
   511  // Determine the wordsize from the preprocessor defines.
   512  //
   513  //    Copyright (C) 2016-2020 Free Software Foundation, Inc.
   514  //    This file is part of the GNU C Library.
   515  //
   516  //    The GNU C Library is free software; you can redistribute it and/or
   517  //    modify it under the terms of the GNU Lesser General Public
   518  //    License as published by the Free Software Foundation; either
   519  //    version 2.1 of the License, or (at your option) any later version.
   520  //
   521  //    The GNU C Library is distributed in the hope that it will be useful,
   522  //    but WITHOUT ANY WARRANTY; without even the implied warranty of
   523  //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   524  //    Lesser General Public License for more details.
   525  //
   526  //    You should have received a copy of the GNU Lesser General Public
   527  //    License along with the GNU C Library; if not, see
   528  //    <https://www.gnu.org/licenses/>.
   529  
   530  // This file is automatically generated.
   531  //    It defines a symbol `__stub_FUNCTION' for each function
   532  //    in the C library which is a stub, meaning it will fail
   533  //    every time called, usually setting errno to ENOSYS.
   534  
   535  // Get the platform dependent bits of `poll'.
   536  // Copyright (C) 1997-2020 Free Software Foundation, Inc.
   537  //    This file is part of the GNU C Library.
   538  //
   539  //    The GNU C Library is free software; you can redistribute it and/or
   540  //    modify it under the terms of the GNU Lesser General Public
   541  //    License as published by the Free Software Foundation; either
   542  //    version 2.1 of the License, or (at your option) any later version.
   543  //
   544  //    The GNU C Library is distributed in the hope that it will be useful,
   545  //    but WITHOUT ANY WARRANTY; without even the implied warranty of
   546  //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   547  //    Lesser General Public License for more details.
   548  //
   549  //    You should have received a copy of the GNU Lesser General Public
   550  //    License along with the GNU C Library; if not, see
   551  //    <https://www.gnu.org/licenses/>.
   552  
   553  // Event types that can be polled for.  These bits may be set in `events'
   554  //    to indicate the interesting event types; they will appear in `revents'
   555  //    to indicate the status of the file descriptor.
   556  
   557  // These values are defined in XPG4.2.
   558  
   559  // Event types always implicitly polled for.  These bits need not be set in
   560  //    `events', but they will appear in `revents' to indicate the status of
   561  //    the file descriptor.
   562  
   563  // Type used for the number of file descriptors.
   564  type Nfds_t = uint64 /* poll.h:33:27 */
   565  
   566  // Data structure describing a polling request.
   567  type Pollfd = struct {
   568  	Ffd      int32
   569  	Fevents  int16
   570  	Frevents int16
   571  } /* poll.h:36:1 */
   572  
   573  // Define some inlines helping to catch common problems.
   574  
   575  var _ uint8 /* gen.c:2:13: */