github.com/afumu/libc@v0.0.6/poll/poll_linux_arm.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_arm.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_POSIX_C_SOURCE   = 200809
    33  	X_POSIX_SOURCE     = 1
    34  	X_STDC_PREDEF_H    = 1
    35  	X_SYS_CDEFS_H      = 1
    36  	X_SYS_POLL_H       = 1
    37  	Linux              = 1
    38  	Unix               = 1
    39  )
    40  
    41  type Ptrdiff_t = int32 /* <builtin>:3:26 */
    42  
    43  type Size_t = uint32 /* <builtin>:9:23 */
    44  
    45  type Wchar_t = uint32 /* <builtin>:15:24 */
    46  
    47  type X__builtin_va_list = uintptr /* <builtin>:46:14 */
    48  type X__float128 = float64        /* <builtin>:47:21 */
    49  
    50  // Compatibility definitions for System V `poll' interface.
    51  //    Copyright (C) 1994-2020 Free Software Foundation, Inc.
    52  //    This file is part of the GNU C Library.
    53  //
    54  //    The GNU C Library is free software; you can redistribute it and/or
    55  //    modify it under the terms of the GNU Lesser General Public
    56  //    License as published by the Free Software Foundation; either
    57  //    version 2.1 of the License, or (at your option) any later version.
    58  //
    59  //    The GNU C Library is distributed in the hope that it will be useful,
    60  //    but WITHOUT ANY WARRANTY; without even the implied warranty of
    61  //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    62  //    Lesser General Public License for more details.
    63  //
    64  //    You should have received a copy of the GNU Lesser General Public
    65  //    License along with the GNU C Library; if not, see
    66  //    <https://www.gnu.org/licenses/>.
    67  
    68  // Copyright (C) 1991-2020 Free Software Foundation, Inc.
    69  //    This file is part of the GNU C Library.
    70  //
    71  //    The GNU C Library is free software; you can redistribute it and/or
    72  //    modify it under the terms of the GNU Lesser General Public
    73  //    License as published by the Free Software Foundation; either
    74  //    version 2.1 of the License, or (at your option) any later version.
    75  //
    76  //    The GNU C Library is distributed in the hope that it will be useful,
    77  //    but WITHOUT ANY WARRANTY; without even the implied warranty of
    78  //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    79  //    Lesser General Public License for more details.
    80  //
    81  //    You should have received a copy of the GNU Lesser General Public
    82  //    License along with the GNU C Library; if not, see
    83  //    <https://www.gnu.org/licenses/>.
    84  
    85  // These are defined by the user (or the compiler)
    86  //    to specify the desired environment:
    87  //
    88  //    __STRICT_ANSI__	ISO Standard C.
    89  //    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
    90  //    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
    91  //    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
    92  //    __STDC_WANT_LIB_EXT2__
    93  // 			Extensions to ISO C99 from TR 27431-2:2010.
    94  //    __STDC_WANT_IEC_60559_BFP_EXT__
    95  // 			Extensions to ISO C11 from TS 18661-1:2014.
    96  //    __STDC_WANT_IEC_60559_FUNCS_EXT__
    97  // 			Extensions to ISO C11 from TS 18661-4:2015.
    98  //    __STDC_WANT_IEC_60559_TYPES_EXT__
    99  // 			Extensions to ISO C11 from TS 18661-3:2015.
   100  //
   101  //    _POSIX_SOURCE	IEEE Std 1003.1.
   102  //    _POSIX_C_SOURCE	If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
   103  // 			if >=199309L, add IEEE Std 1003.1b-1993;
   104  // 			if >=199506L, add IEEE Std 1003.1c-1995;
   105  // 			if >=200112L, all of IEEE 1003.1-2004
   106  // 			if >=200809L, all of IEEE 1003.1-2008
   107  //    _XOPEN_SOURCE	Includes POSIX and XPG things.  Set to 500 if
   108  // 			Single Unix conformance is wanted, to 600 for the
   109  // 			sixth revision, to 700 for the seventh revision.
   110  //    _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
   111  //    _LARGEFILE_SOURCE	Some more functions for correct standard I/O.
   112  //    _LARGEFILE64_SOURCE	Additional functionality from LFS for large files.
   113  //    _FILE_OFFSET_BITS=N	Select default filesystem interface.
   114  //    _ATFILE_SOURCE	Additional *at interfaces.
   115  //    _GNU_SOURCE		All of the above, plus GNU extensions.
   116  //    _DEFAULT_SOURCE	The default set of features (taking precedence over
   117  // 			__STRICT_ANSI__).
   118  //
   119  //    _FORTIFY_SOURCE	Add security hardening to many library functions.
   120  // 			Set to 1 or 2; 2 performs stricter checks than 1.
   121  //
   122  //    _REENTRANT, _THREAD_SAFE
   123  // 			Obsolete; equivalent to _POSIX_C_SOURCE=199506L.
   124  //
   125  //    The `-ansi' switch to the GNU C compiler, and standards conformance
   126  //    options such as `-std=c99', define __STRICT_ANSI__.  If none of
   127  //    these are defined, or if _DEFAULT_SOURCE is defined, the default is
   128  //    to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
   129  //    200809L, as well as enabling miscellaneous functions from BSD and
   130  //    SVID.  If more than one of these are defined, they accumulate.  For
   131  //    example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together
   132  //    give you ISO C, 1003.1, and 1003.2, but nothing else.
   133  //
   134  //    These are defined by this file and are used by the
   135  //    header files to decide what to declare or define:
   136  //
   137  //    __GLIBC_USE (F)	Define things from feature set F.  This is defined
   138  // 			to 1 or 0; the subsequent macros are either defined
   139  // 			or undefined, and those tests should be moved to
   140  // 			__GLIBC_USE.
   141  //    __USE_ISOC11		Define ISO C11 things.
   142  //    __USE_ISOC99		Define ISO C99 things.
   143  //    __USE_ISOC95		Define ISO C90 AMD1 (C95) things.
   144  //    __USE_ISOCXX11	Define ISO C++11 things.
   145  //    __USE_POSIX		Define IEEE Std 1003.1 things.
   146  //    __USE_POSIX2		Define IEEE Std 1003.2 things.
   147  //    __USE_POSIX199309	Define IEEE Std 1003.1, and .1b things.
   148  //    __USE_POSIX199506	Define IEEE Std 1003.1, .1b, .1c and .1i things.
   149  //    __USE_XOPEN		Define XPG things.
   150  //    __USE_XOPEN_EXTENDED	Define X/Open Unix things.
   151  //    __USE_UNIX98		Define Single Unix V2 things.
   152  //    __USE_XOPEN2K        Define XPG6 things.
   153  //    __USE_XOPEN2KXSI     Define XPG6 XSI things.
   154  //    __USE_XOPEN2K8       Define XPG7 things.
   155  //    __USE_XOPEN2K8XSI    Define XPG7 XSI things.
   156  //    __USE_LARGEFILE	Define correct standard I/O things.
   157  //    __USE_LARGEFILE64	Define LFS things with separate names.
   158  //    __USE_FILE_OFFSET64	Define 64bit interface as default.
   159  //    __USE_MISC		Define things from 4.3BSD or System V Unix.
   160  //    __USE_ATFILE		Define *at interfaces and AT_* constants for them.
   161  //    __USE_GNU		Define GNU extensions.
   162  //    __USE_FORTIFY_LEVEL	Additional security measures used, according to level.
   163  //
   164  //    The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
   165  //    defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
   166  //    only for compatibility.  All new code should use the other symbols
   167  //    to test for features.
   168  //
   169  //    All macros listed above as possibly being defined by this file are
   170  //    explicitly undefined if they are not explicitly defined.
   171  //    Feature-test macros that are not defined by the user or compiler
   172  //    but are implied by the other feature-test macros defined (or by the
   173  //    lack of any definitions) are defined by the file.
   174  //
   175  //    ISO C feature test macros depend on the definition of the macro
   176  //    when an affected header is included, not when the first system
   177  //    header is included, and so they are handled in
   178  //    <bits/libc-header-start.h>, which does not have a multiple include
   179  //    guard.  Feature test macros that can be handled from the first
   180  //    system header included are handled here.
   181  
   182  // Undefine everything, so we get a clean slate.
   183  
   184  // Suppress kernel-name space pollution unless user expressedly asks
   185  //    for it.
   186  
   187  // Convenience macro to test the version of gcc.
   188  //    Use like this:
   189  //    #if __GNUC_PREREQ (2,8)
   190  //    ... code requiring gcc 2.8 or later ...
   191  //    #endif
   192  //    Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was
   193  //    added in 2.0.
   194  
   195  // Similarly for clang.  Features added to GCC after version 4.2 may
   196  //    or may not also be available in clang, and clang's definitions of
   197  //    __GNUC(_MINOR)__ are fixed at 4 and 2 respectively.  Not all such
   198  //    features can be queried via __has_extension/__has_feature.
   199  
   200  // Whether to use feature set F.
   201  
   202  // _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for
   203  //    _DEFAULT_SOURCE.  If _DEFAULT_SOURCE is present we do not
   204  //    issue a warning; the expectation is that the source is being
   205  //    transitioned to use the new macro.
   206  
   207  // If _GNU_SOURCE was defined by the user, turn on all the other features.
   208  
   209  // If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
   210  //    define _DEFAULT_SOURCE.
   211  
   212  // This is to enable the ISO C2X extension.
   213  
   214  // This is to enable the ISO C11 extension.
   215  
   216  // This is to enable the ISO C99 extension.
   217  
   218  // This is to enable the ISO C90 Amendment 1:1995 extension.
   219  
   220  // If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE
   221  //    is defined, use POSIX.1-2008 (or another version depending on
   222  //    _XOPEN_SOURCE).
   223  
   224  // Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
   225  //    defined in all multithreaded code.  GNU libc has not required this
   226  //    for many years.  We now treat them as compatibility synonyms for
   227  //    _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with
   228  //    comprehensive support for multithreaded code.  Using them never
   229  //    lowers the selected level of POSIX conformance, only raises it.
   230  
   231  // The function 'gets' existed in C89, but is impossible to use
   232  //    safely.  It has been removed from ISO C11 and ISO C++14.  Note: for
   233  //    compatibility with various implementations of <cstdio>, this test
   234  //    must consider only the value of __cplusplus when compiling C++.
   235  
   236  // GNU formerly extended the scanf functions with modified format
   237  //    specifiers %as, %aS, and %a[...] that allocate a buffer for the
   238  //    input using malloc.  This extension conflicts with ISO C99, which
   239  //    defines %a as a standalone format specifier that reads a floating-
   240  //    point number; moreover, POSIX.1-2008 provides the same feature
   241  //    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
   242  //
   243  //    We now follow C99 unless GNU extensions are active and the compiler
   244  //    is specifically in C89 or C++98 mode (strict or not).  For
   245  //    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
   246  //    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
   247  //    old extension.
   248  
   249  // Get definitions of __STDC_* predefined macros, if the compiler has
   250  //    not preincluded this header automatically.
   251  // Copyright (C) 1991-2020 Free Software Foundation, Inc.
   252  //    This file is part of the GNU C Library.
   253  //
   254  //    The GNU C Library is free software; you can redistribute it and/or
   255  //    modify it under the terms of the GNU Lesser General Public
   256  //    License as published by the Free Software Foundation; either
   257  //    version 2.1 of the License, or (at your option) any later version.
   258  //
   259  //    The GNU C Library is distributed in the hope that it will be useful,
   260  //    but WITHOUT ANY WARRANTY; without even the implied warranty of
   261  //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   262  //    Lesser General Public License for more details.
   263  //
   264  //    You should have received a copy of the GNU Lesser General Public
   265  //    License along with the GNU C Library; if not, see
   266  //    <https://www.gnu.org/licenses/>.
   267  
   268  // This macro indicates that the installed library is the GNU C Library.
   269  //    For historic reasons the value now is 6 and this will stay from now
   270  //    on.  The use of this variable is deprecated.  Use __GLIBC__ and
   271  //    __GLIBC_MINOR__ now (see below) when you want to test for a specific
   272  //    GNU C library version and use the values in <gnu/lib-names.h> to get
   273  //    the sonames of the shared libraries.
   274  
   275  // Major and minor version number of the GNU C library package.  Use
   276  //    these macros to test for features in specific releases.
   277  
   278  // This is here only because every header file already includes this one.
   279  // Copyright (C) 1992-2020 Free Software Foundation, Inc.
   280  //    This file is part of the GNU C Library.
   281  //
   282  //    The GNU C Library is free software; you can redistribute it and/or
   283  //    modify it under the terms of the GNU Lesser General Public
   284  //    License as published by the Free Software Foundation; either
   285  //    version 2.1 of the License, or (at your option) any later version.
   286  //
   287  //    The GNU C Library is distributed in the hope that it will be useful,
   288  //    but WITHOUT ANY WARRANTY; without even the implied warranty of
   289  //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   290  //    Lesser General Public License for more details.
   291  //
   292  //    You should have received a copy of the GNU Lesser General Public
   293  //    License along with the GNU C Library; if not, see
   294  //    <https://www.gnu.org/licenses/>.
   295  
   296  // We are almost always included from features.h.
   297  
   298  // The GNU libc does not support any K&R compilers or the traditional mode
   299  //    of ISO C compilers anymore.  Check for some of the combinations not
   300  //    anymore supported.
   301  
   302  // Some user header file might have defined this before.
   303  
   304  // All functions, except those with callbacks or those that
   305  //    synchronize memory, are leaf functions.
   306  
   307  // GCC can always grok prototypes.  For C++ programs we add throw()
   308  //    to help it optimize the function calls.  But this works only with
   309  //    gcc 2.8.x and egcs.  For gcc 3.2 and up we even mark C functions
   310  //    as non-throwing using a function attribute since programs can use
   311  //    the -fexceptions options for C code as well.
   312  
   313  // Compilers that are not clang may object to
   314  //        #if defined __clang__ && __has_extension(...)
   315  //    even though they do not need to evaluate the right-hand side of the &&.
   316  
   317  // These two macros are not used in glibc anymore.  They are kept here
   318  //    only because some other projects expect the macros to be defined.
   319  
   320  // For these things, GCC behaves the ANSI way normally,
   321  //    and the non-ANSI way under -traditional.
   322  
   323  // This is not a typedef so `const __ptr_t' does the right thing.
   324  
   325  // C++ needs to know that types and declarations are C, not C++.
   326  
   327  // Fortify support.
   328  
   329  // Support for flexible arrays.
   330  //    Headers that should use flexible arrays only if they're "real"
   331  //    (e.g. only if they won't affect sizeof()) should test
   332  //    #if __glibc_c99_flexarr_available.
   333  
   334  // __asm__ ("xyz") is used throughout the headers to rename functions
   335  //    at the assembly language level.  This is wrapped by the __REDIRECT
   336  //    macro, in order to support compilers that can do this some other
   337  //    way.  When compilers don't support asm-names at all, we have to do
   338  //    preprocessor tricks instead (which don't have exactly the right
   339  //    semantics, but it's the best we can do).
   340  //
   341  //    Example:
   342  //    int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid);
   343  
   344  //
   345  // #elif __SOME_OTHER_COMPILER__
   346  //
   347  // # define __REDIRECT(name, proto, alias) name proto; 	_Pragma("let " #name " = " #alias)
   348  
   349  // GCC has various useful declarations that can be made with the
   350  //    `__attribute__' syntax.  All of the ways we use this do fine if
   351  //    they are omitted for compilers that don't understand it.
   352  
   353  // At some point during the gcc 2.96 development the `malloc' attribute
   354  //    for functions was introduced.  We don't want to use it unconditionally
   355  //    (although this would be possible) since it generates warnings.
   356  
   357  // Tell the compiler which arguments to an allocation function
   358  //    indicate the size of the allocation.
   359  
   360  // At some point during the gcc 2.96 development the `pure' attribute
   361  //    for functions was introduced.  We don't want to use it unconditionally
   362  //    (although this would be possible) since it generates warnings.
   363  
   364  // This declaration tells the compiler that the value is constant.
   365  
   366  // At some point during the gcc 3.1 development the `used' attribute
   367  //    for functions was introduced.  We don't want to use it unconditionally
   368  //    (although this would be possible) since it generates warnings.
   369  
   370  // Since version 3.2, gcc allows marking deprecated functions.
   371  
   372  // Since version 4.5, gcc also allows one to specify the message printed
   373  //    when a deprecated function is used.  clang claims to be gcc 4.2, but
   374  //    may also support this feature.
   375  
   376  // At some point during the gcc 2.8 development the `format_arg' 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  //    If several `format_arg' attributes are given for the same function, in
   380  //    gcc-3.0 and older, all but the last one are ignored.  In newer gccs,
   381  //    all designated arguments are considered.
   382  
   383  // At some point during the gcc 2.97 development the `strfmon' format
   384  //    attribute for functions was introduced.  We don't want to use it
   385  //    unconditionally (although this would be possible) since it
   386  //    generates warnings.
   387  
   388  // The nonull function attribute allows to mark pointer parameters which
   389  //    must not be NULL.
   390  
   391  // If fortification mode, we warn about unused results of certain
   392  //    function calls which can lead to problems.
   393  
   394  // Forces a function to be always inlined.
   395  // The Linux kernel defines __always_inline in stddef.h (283d7573), and
   396  //    it conflicts with this definition.  Therefore undefine it first to
   397  //    allow either header to be included first.
   398  
   399  // Associate error messages with the source location of the call site rather
   400  //    than with the source location inside the function.
   401  
   402  // GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
   403  //    inline semantics, unless -fgnu89-inline is used.  Using __GNUC_STDC_INLINE__
   404  //    or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
   405  //    older than 4.3 may define these macros and still not guarantee GNU inlining
   406  //    semantics.
   407  //
   408  //    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
   409  //    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
   410  //    __GNUC_GNU_INLINE__ macro definitions.
   411  
   412  // GCC 4.3 and above allow passing all anonymous arguments of an
   413  //    __extern_always_inline function to some other vararg function.
   414  
   415  // It is possible to compile containing GCC extensions even if GCC is
   416  //    run in pedantic mode if the uses are carefully marked using the
   417  //    `__extension__' keyword.  But this is not generally available before
   418  //    version 2.8.
   419  
   420  // __restrict is known in EGCS 1.2 and above.
   421  
   422  // ISO C99 also allows to declare arrays as non-overlapping.  The syntax is
   423  //      array_name[restrict]
   424  //    GCC 3.1 supports this.
   425  
   426  // Describes a char array whose address can safely be passed as the first
   427  //    argument to strncpy and strncat, as the char array is not necessarily
   428  //    a NUL-terminated string.
   429  
   430  // Undefine (also defined in libc-symbols.h).
   431  // Copies attributes from the declaration or type referenced by
   432  //    the argument.
   433  
   434  // Copyright (C) 1999-2020 Free Software Foundation, Inc.
   435  //    This file is part of the GNU C Library.
   436  //
   437  //    The GNU C Library is free software; you can redistribute it and/or
   438  //    modify it under the terms of the GNU Lesser General Public
   439  //    License as published by the Free Software Foundation; either
   440  //    version 2.1 of the License, or (at your option) any later version.
   441  //
   442  //    The GNU C Library is distributed in the hope that it will be useful,
   443  //    but WITHOUT ANY WARRANTY; without even the implied warranty of
   444  //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   445  //    Lesser General Public License for more details.
   446  //
   447  //    You should have received a copy of the GNU Lesser General Public
   448  //    License along with the GNU C Library; if not, see
   449  //    <https://www.gnu.org/licenses/>.
   450  
   451  // Properties of long double type.
   452  //    Copyright (C) 2016-2020 Free Software Foundation, Inc.
   453  //    This file is part of the GNU C Library.
   454  //
   455  //    The GNU C Library is free software; you can redistribute it and/or
   456  //    modify it under the terms of the GNU Lesser General Public
   457  //    License  published by the Free Software Foundation; either
   458  //    version 2.1 of the License, or (at your option) any later version.
   459  //
   460  //    The GNU C Library is distributed in the hope that it will be useful,
   461  //    but WITHOUT ANY WARRANTY; without even the implied warranty of
   462  //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   463  //    Lesser General Public License for more details.
   464  //
   465  //    You should have received a copy of the GNU Lesser General Public
   466  //    License along with the GNU C Library; if not, see
   467  //    <https://www.gnu.org/licenses/>.
   468  
   469  // This header is included by <sys/cdefs.h>.
   470  //
   471  //    If long double is ABI-compatible with double, it should define
   472  //    __NO_LONG_DOUBLE_MATH to 1; otherwise, it should leave
   473  //    __NO_LONG_DOUBLE_MATH undefined.
   474  //
   475  //    If this build of the GNU C Library supports both long double
   476  //    ABI-compatible with double and some other long double format not
   477  //    ABI-compatible with double, it should define
   478  //    __LONG_DOUBLE_MATH_OPTIONAL to 1; otherwise, it should leave
   479  //    __LONG_DOUBLE_MATH_OPTIONAL undefined.
   480  //
   481  //    If __NO_LONG_DOUBLE_MATH is already defined, this header must not
   482  //    define anything; this is needed to work with the definition of
   483  //    __NO_LONG_DOUBLE_MATH in nldbl-compat.h.
   484  
   485  // In the default version of this header, long double is
   486  //    ABI-compatible with double.
   487  
   488  // __glibc_macro_warning (MESSAGE) issues warning MESSAGE.  This is
   489  //    intended for use in preprocessor macros.
   490  //
   491  //    Note: MESSAGE must be a _single_ string; concatenation of string
   492  //    literals is not supported.
   493  
   494  // Generic selection (ISO C11) is a C-only feature, available in GCC
   495  //    since version 4.9.  Previous versions do not provide generic
   496  //    selection, even though they might set __STDC_VERSION__ to 201112L,
   497  //    when in -std=c11 mode.  Thus, we must check for !defined __GNUC__
   498  //    when testing __STDC_VERSION__ for generic selection support.
   499  //    On the other hand, Clang also defines __GNUC__, so a clang-specific
   500  //    check is required to enable the use of generic selection.
   501  
   502  // If we don't have __REDIRECT, prototypes will be missing if
   503  //    __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64].
   504  
   505  // Decide whether we can define 'extern inline' functions in headers.
   506  
   507  // This is here only because every header file already includes this one.
   508  //    Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
   509  //    <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
   510  //    that will always return failure (and set errno to ENOSYS).
   511  // This file is automatically generated.
   512  //    This file selects the right generated file of `__stub_FUNCTION' macros
   513  //    based on the architecture being compiled for.
   514  
   515  // This file is automatically generated.
   516  //    It defines a symbol `__stub_FUNCTION' for each function
   517  //    in the C library which is a stub, meaning it will fail
   518  //    every time called, usually setting errno to ENOSYS.
   519  
   520  // Get the platform dependent bits of `poll'.
   521  // Copyright (C) 1997-2020 Free Software Foundation, Inc.
   522  //    This file is part of the GNU C Library.
   523  //
   524  //    The GNU C Library is free software; you can redistribute it and/or
   525  //    modify it under the terms of the GNU Lesser General Public
   526  //    License as published by the Free Software Foundation; either
   527  //    version 2.1 of the License, or (at your option) any later version.
   528  //
   529  //    The GNU C Library is distributed in the hope that it will be useful,
   530  //    but WITHOUT ANY WARRANTY; without even the implied warranty of
   531  //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   532  //    Lesser General Public License for more details.
   533  //
   534  //    You should have received a copy of the GNU Lesser General Public
   535  //    License along with the GNU C Library; if not, see
   536  //    <https://www.gnu.org/licenses/>.
   537  
   538  // Event types that can be polled for.  These bits may be set in `events'
   539  //    to indicate the interesting event types; they will appear in `revents'
   540  //    to indicate the status of the file descriptor.
   541  
   542  // These values are defined in XPG4.2.
   543  
   544  // Event types always implicitly polled for.  These bits need not be set in
   545  //    `events', but they will appear in `revents' to indicate the status of
   546  //    the file descriptor.
   547  
   548  // Type used for the number of file descriptors.
   549  type Nfds_t = uint32 /* poll.h:33:27 */
   550  
   551  // Data structure describing a polling request.
   552  type Pollfd = struct {
   553  	Ffd      int32
   554  	Fevents  int16
   555  	Frevents int16
   556  } /* poll.h:36:1 */
   557  
   558  // Define some inlines helping to catch common problems.
   559  
   560  var _ uint8 /* gen.c:2:13: */