1*fd82c4c4Schristos /* This file is automatically generated. DO NOT EDIT! */ 2*fd82c4c4Schristos /* Generated from: NetBSD: mknative-gdb,v 1.12 2020/09/17 16:54:31 christos Exp */ 3*fd82c4c4Schristos /* Generated from: NetBSD: mknative.common,v 1.16 2018/04/15 15:13:37 christos Exp */ 4*fd82c4c4Schristos 5*fd82c4c4Schristos /* DO NOT EDIT! GENERATED AUTOMATICALLY! */ 6*fd82c4c4Schristos /* Like <fcntl.h>, but with non-working flags defined to 0. 7*fd82c4c4Schristos 8*fd82c4c4Schristos Copyright (C) 2006-2020 Free Software Foundation, Inc. 9*fd82c4c4Schristos 10*fd82c4c4Schristos This program is free software: you can redistribute it and/or modify 11*fd82c4c4Schristos it under the terms of the GNU General Public License as published by 12*fd82c4c4Schristos the Free Software Foundation; either version 3 of the License, or 13*fd82c4c4Schristos (at your option) any later version. 14*fd82c4c4Schristos 15*fd82c4c4Schristos This program is distributed in the hope that it will be useful, 16*fd82c4c4Schristos but WITHOUT ANY WARRANTY; without even the implied warranty of 17*fd82c4c4Schristos MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*fd82c4c4Schristos GNU General Public License for more details. 19*fd82c4c4Schristos 20*fd82c4c4Schristos You should have received a copy of the GNU General Public License 21*fd82c4c4Schristos along with this program. If not, see <https://www.gnu.org/licenses/>. */ 22*fd82c4c4Schristos 23*fd82c4c4Schristos /* written by Paul Eggert */ 24*fd82c4c4Schristos 25*fd82c4c4Schristos #if __GNUC__ >= 3 26*fd82c4c4Schristos #pragma GCC system_header 27*fd82c4c4Schristos #endif 28*fd82c4c4Schristos 29*fd82c4c4Schristos 30*fd82c4c4Schristos #if defined __need_system_fcntl_h 31*fd82c4c4Schristos /* Special invocation convention. */ 32*fd82c4c4Schristos 33*fd82c4c4Schristos /* Needed before <sys/stat.h>. 34*fd82c4c4Schristos May also define off_t to a 64-bit type on native Windows. */ 35*fd82c4c4Schristos #include <sys/types.h> 36*fd82c4c4Schristos /* On some systems other than glibc, <sys/stat.h> is a prerequisite of 37*fd82c4c4Schristos <fcntl.h>. On glibc systems, we would like to avoid namespace pollution. 38*fd82c4c4Schristos But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an 39*fd82c4c4Schristos extern "C" { ... } block, which leads to errors in C++ mode with the 40*fd82c4c4Schristos overridden <sys/stat.h> from gnulib. These errors are known to be gone 41*fd82c4c4Schristos with g++ version >= 4.3. */ 42*fd82c4c4Schristos #if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && (defined __ICC || !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))) 43*fd82c4c4Schristos # include <sys/stat.h> 44*fd82c4c4Schristos #endif 45*fd82c4c4Schristos #include_next <fcntl.h> 46*fd82c4c4Schristos 47*fd82c4c4Schristos /* Native Windows platforms declare open(), creat() in <io.h>. */ 48*fd82c4c4Schristos #if (0 || 1 || defined GNULIB_POSIXCHECK) \ 49*fd82c4c4Schristos && (defined _WIN32 && ! defined __CYGWIN__) 50*fd82c4c4Schristos # include <io.h> 51*fd82c4c4Schristos #endif 52*fd82c4c4Schristos 53*fd82c4c4Schristos #else 54*fd82c4c4Schristos /* Normal invocation convention. */ 55*fd82c4c4Schristos 56*fd82c4c4Schristos #ifndef _GL_FCNTL_H 57*fd82c4c4Schristos 58*fd82c4c4Schristos /* Needed before <sys/stat.h>. 59*fd82c4c4Schristos May also define off_t to a 64-bit type on native Windows. */ 60*fd82c4c4Schristos #include <sys/types.h> 61*fd82c4c4Schristos /* On some systems other than glibc, <sys/stat.h> is a prerequisite of 62*fd82c4c4Schristos <fcntl.h>. On glibc systems, we would like to avoid namespace pollution. 63*fd82c4c4Schristos But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an 64*fd82c4c4Schristos extern "C" { ... } block, which leads to errors in C++ mode with the 65*fd82c4c4Schristos overridden <sys/stat.h> from gnulib. These errors are known to be gone 66*fd82c4c4Schristos with g++ version >= 4.3. */ 67*fd82c4c4Schristos #if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && (defined __ICC || !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))) 68*fd82c4c4Schristos # include <sys/stat.h> 69*fd82c4c4Schristos #endif 70*fd82c4c4Schristos /* The include_next requires a split double-inclusion guard. */ 71*fd82c4c4Schristos #include_next <fcntl.h> 72*fd82c4c4Schristos 73*fd82c4c4Schristos /* Native Windows platforms declare open(), creat() in <io.h>. */ 74*fd82c4c4Schristos #if (0 || 1 || defined GNULIB_POSIXCHECK) \ 75*fd82c4c4Schristos && (defined _WIN32 && ! defined __CYGWIN__) 76*fd82c4c4Schristos # include <io.h> 77*fd82c4c4Schristos #endif 78*fd82c4c4Schristos 79*fd82c4c4Schristos #ifndef _GL_FCNTL_H 80*fd82c4c4Schristos #define _GL_FCNTL_H 81*fd82c4c4Schristos 82*fd82c4c4Schristos #ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */ 83*fd82c4c4Schristos # include <unistd.h> 84*fd82c4c4Schristos #endif 85*fd82c4c4Schristos 86*fd82c4c4Schristos 87*fd82c4c4Schristos /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ 88*fd82c4c4Schristos /* C++ compatible function declaration macros. 89*fd82c4c4Schristos Copyright (C) 2010-2020 Free Software Foundation, Inc. 90*fd82c4c4Schristos 91*fd82c4c4Schristos This program is free software: you can redistribute it and/or modify it 92*fd82c4c4Schristos under the terms of the GNU General Public License as published 93*fd82c4c4Schristos by the Free Software Foundation; either version 3 of the License, or 94*fd82c4c4Schristos (at your option) any later version. 95*fd82c4c4Schristos 96*fd82c4c4Schristos This program is distributed in the hope that it will be useful, 97*fd82c4c4Schristos but WITHOUT ANY WARRANTY; without even the implied warranty of 98*fd82c4c4Schristos MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 99*fd82c4c4Schristos General Public License for more details. 100*fd82c4c4Schristos 101*fd82c4c4Schristos You should have received a copy of the GNU General Public License 102*fd82c4c4Schristos along with this program. If not, see <https://www.gnu.org/licenses/>. */ 103*fd82c4c4Schristos 104*fd82c4c4Schristos #ifndef _GL_CXXDEFS_H 105*fd82c4c4Schristos #define _GL_CXXDEFS_H 106*fd82c4c4Schristos 107*fd82c4c4Schristos /* Begin/end the GNULIB_NAMESPACE namespace. */ 108*fd82c4c4Schristos #if defined __cplusplus && defined GNULIB_NAMESPACE 109*fd82c4c4Schristos # define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE { 110*fd82c4c4Schristos # define _GL_END_NAMESPACE } 111*fd82c4c4Schristos #else 112*fd82c4c4Schristos # define _GL_BEGIN_NAMESPACE 113*fd82c4c4Schristos # define _GL_END_NAMESPACE 114*fd82c4c4Schristos #endif 115*fd82c4c4Schristos 116*fd82c4c4Schristos /* The three most frequent use cases of these macros are: 117*fd82c4c4Schristos 118*fd82c4c4Schristos * For providing a substitute for a function that is missing on some 119*fd82c4c4Schristos platforms, but is declared and works fine on the platforms on which 120*fd82c4c4Schristos it exists: 121*fd82c4c4Schristos 122*fd82c4c4Schristos #if @GNULIB_FOO@ 123*fd82c4c4Schristos # if !@HAVE_FOO@ 124*fd82c4c4Schristos _GL_FUNCDECL_SYS (foo, ...); 125*fd82c4c4Schristos # endif 126*fd82c4c4Schristos _GL_CXXALIAS_SYS (foo, ...); 127*fd82c4c4Schristos _GL_CXXALIASWARN (foo); 128*fd82c4c4Schristos #elif defined GNULIB_POSIXCHECK 129*fd82c4c4Schristos ... 130*fd82c4c4Schristos #endif 131*fd82c4c4Schristos 132*fd82c4c4Schristos * For providing a replacement for a function that exists on all platforms, 133*fd82c4c4Schristos but is broken/insufficient and needs to be replaced on some platforms: 134*fd82c4c4Schristos 135*fd82c4c4Schristos #if @GNULIB_FOO@ 136*fd82c4c4Schristos # if @REPLACE_FOO@ 137*fd82c4c4Schristos # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 138*fd82c4c4Schristos # undef foo 139*fd82c4c4Schristos # define foo rpl_foo 140*fd82c4c4Schristos # endif 141*fd82c4c4Schristos _GL_FUNCDECL_RPL (foo, ...); 142*fd82c4c4Schristos _GL_CXXALIAS_RPL (foo, ...); 143*fd82c4c4Schristos # else 144*fd82c4c4Schristos _GL_CXXALIAS_SYS (foo, ...); 145*fd82c4c4Schristos # endif 146*fd82c4c4Schristos _GL_CXXALIASWARN (foo); 147*fd82c4c4Schristos #elif defined GNULIB_POSIXCHECK 148*fd82c4c4Schristos ... 149*fd82c4c4Schristos #endif 150*fd82c4c4Schristos 151*fd82c4c4Schristos * For providing a replacement for a function that exists on some platforms 152*fd82c4c4Schristos but is broken/insufficient and needs to be replaced on some of them and 153*fd82c4c4Schristos is additionally either missing or undeclared on some other platforms: 154*fd82c4c4Schristos 155*fd82c4c4Schristos #if @GNULIB_FOO@ 156*fd82c4c4Schristos # if @REPLACE_FOO@ 157*fd82c4c4Schristos # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 158*fd82c4c4Schristos # undef foo 159*fd82c4c4Schristos # define foo rpl_foo 160*fd82c4c4Schristos # endif 161*fd82c4c4Schristos _GL_FUNCDECL_RPL (foo, ...); 162*fd82c4c4Schristos _GL_CXXALIAS_RPL (foo, ...); 163*fd82c4c4Schristos # else 164*fd82c4c4Schristos # if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@ 165*fd82c4c4Schristos _GL_FUNCDECL_SYS (foo, ...); 166*fd82c4c4Schristos # endif 167*fd82c4c4Schristos _GL_CXXALIAS_SYS (foo, ...); 168*fd82c4c4Schristos # endif 169*fd82c4c4Schristos _GL_CXXALIASWARN (foo); 170*fd82c4c4Schristos #elif defined GNULIB_POSIXCHECK 171*fd82c4c4Schristos ... 172*fd82c4c4Schristos #endif 173*fd82c4c4Schristos */ 174*fd82c4c4Schristos 175*fd82c4c4Schristos /* _GL_EXTERN_C declaration; 176*fd82c4c4Schristos performs the declaration with C linkage. */ 177*fd82c4c4Schristos #if defined __cplusplus 178*fd82c4c4Schristos # define _GL_EXTERN_C extern "C" 179*fd82c4c4Schristos #else 180*fd82c4c4Schristos # define _GL_EXTERN_C extern 181*fd82c4c4Schristos #endif 182*fd82c4c4Schristos 183*fd82c4c4Schristos /* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes); 184*fd82c4c4Schristos declares a replacement function, named rpl_func, with the given prototype, 185*fd82c4c4Schristos consisting of return type, parameters, and attributes. 186*fd82c4c4Schristos Example: 187*fd82c4c4Schristos _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...) 188*fd82c4c4Schristos _GL_ARG_NONNULL ((1))); 189*fd82c4c4Schristos */ 190*fd82c4c4Schristos #define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \ 191*fd82c4c4Schristos _GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes) 192*fd82c4c4Schristos #define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \ 193*fd82c4c4Schristos _GL_EXTERN_C rettype rpl_func parameters_and_attributes 194*fd82c4c4Schristos 195*fd82c4c4Schristos /* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes); 196*fd82c4c4Schristos declares the system function, named func, with the given prototype, 197*fd82c4c4Schristos consisting of return type, parameters, and attributes. 198*fd82c4c4Schristos Example: 199*fd82c4c4Schristos _GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...) 200*fd82c4c4Schristos _GL_ARG_NONNULL ((1))); 201*fd82c4c4Schristos */ 202*fd82c4c4Schristos #define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \ 203*fd82c4c4Schristos _GL_EXTERN_C rettype func parameters_and_attributes 204*fd82c4c4Schristos 205*fd82c4c4Schristos /* _GL_CXXALIAS_RPL (func, rettype, parameters); 206*fd82c4c4Schristos declares a C++ alias called GNULIB_NAMESPACE::func 207*fd82c4c4Schristos that redirects to rpl_func, if GNULIB_NAMESPACE is defined. 208*fd82c4c4Schristos Example: 209*fd82c4c4Schristos _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...)); 210*fd82c4c4Schristos 211*fd82c4c4Schristos Wrapping rpl_func in an object with an inline conversion operator 212*fd82c4c4Schristos avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is 213*fd82c4c4Schristos actually used in the program. */ 214*fd82c4c4Schristos #define _GL_CXXALIAS_RPL(func,rettype,parameters) \ 215*fd82c4c4Schristos _GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters) 216*fd82c4c4Schristos #if defined __cplusplus && defined GNULIB_NAMESPACE 217*fd82c4c4Schristos # define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ 218*fd82c4c4Schristos namespace GNULIB_NAMESPACE \ 219*fd82c4c4Schristos { \ 220*fd82c4c4Schristos static const struct _gl_ ## func ## _wrapper \ 221*fd82c4c4Schristos { \ 222*fd82c4c4Schristos typedef rettype (*type) parameters; \ 223*fd82c4c4Schristos \ 224*fd82c4c4Schristos inline operator type () const \ 225*fd82c4c4Schristos { \ 226*fd82c4c4Schristos return ::rpl_func; \ 227*fd82c4c4Schristos } \ 228*fd82c4c4Schristos } func = {}; \ 229*fd82c4c4Schristos } \ 230*fd82c4c4Schristos _GL_EXTERN_C int _gl_cxxalias_dummy 231*fd82c4c4Schristos #else 232*fd82c4c4Schristos # define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ 233*fd82c4c4Schristos _GL_EXTERN_C int _gl_cxxalias_dummy 234*fd82c4c4Schristos #endif 235*fd82c4c4Schristos 236*fd82c4c4Schristos /* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters); 237*fd82c4c4Schristos is like _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters); 238*fd82c4c4Schristos except that the C function rpl_func may have a slightly different 239*fd82c4c4Schristos declaration. A cast is used to silence the "invalid conversion" error 240*fd82c4c4Schristos that would otherwise occur. */ 241*fd82c4c4Schristos #if defined __cplusplus && defined GNULIB_NAMESPACE 242*fd82c4c4Schristos # define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \ 243*fd82c4c4Schristos namespace GNULIB_NAMESPACE \ 244*fd82c4c4Schristos { \ 245*fd82c4c4Schristos static const struct _gl_ ## func ## _wrapper \ 246*fd82c4c4Schristos { \ 247*fd82c4c4Schristos typedef rettype (*type) parameters; \ 248*fd82c4c4Schristos \ 249*fd82c4c4Schristos inline operator type () const \ 250*fd82c4c4Schristos { \ 251*fd82c4c4Schristos return reinterpret_cast<type>(::rpl_func); \ 252*fd82c4c4Schristos } \ 253*fd82c4c4Schristos } func = {}; \ 254*fd82c4c4Schristos } \ 255*fd82c4c4Schristos _GL_EXTERN_C int _gl_cxxalias_dummy 256*fd82c4c4Schristos #else 257*fd82c4c4Schristos # define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \ 258*fd82c4c4Schristos _GL_EXTERN_C int _gl_cxxalias_dummy 259*fd82c4c4Schristos #endif 260*fd82c4c4Schristos 261*fd82c4c4Schristos /* _GL_CXXALIAS_SYS (func, rettype, parameters); 262*fd82c4c4Schristos declares a C++ alias called GNULIB_NAMESPACE::func 263*fd82c4c4Schristos that redirects to the system provided function func, if GNULIB_NAMESPACE 264*fd82c4c4Schristos is defined. 265*fd82c4c4Schristos Example: 266*fd82c4c4Schristos _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...)); 267*fd82c4c4Schristos 268*fd82c4c4Schristos Wrapping func in an object with an inline conversion operator 269*fd82c4c4Schristos avoids a reference to func unless GNULIB_NAMESPACE::func is 270*fd82c4c4Schristos actually used in the program. */ 271*fd82c4c4Schristos #if defined __cplusplus && defined GNULIB_NAMESPACE 272*fd82c4c4Schristos # define _GL_CXXALIAS_SYS(func,rettype,parameters) \ 273*fd82c4c4Schristos namespace GNULIB_NAMESPACE \ 274*fd82c4c4Schristos { \ 275*fd82c4c4Schristos static const struct _gl_ ## func ## _wrapper \ 276*fd82c4c4Schristos { \ 277*fd82c4c4Schristos typedef rettype (*type) parameters; \ 278*fd82c4c4Schristos \ 279*fd82c4c4Schristos inline operator type () const \ 280*fd82c4c4Schristos { \ 281*fd82c4c4Schristos return ::func; \ 282*fd82c4c4Schristos } \ 283*fd82c4c4Schristos } func = {}; \ 284*fd82c4c4Schristos } \ 285*fd82c4c4Schristos _GL_EXTERN_C int _gl_cxxalias_dummy 286*fd82c4c4Schristos #else 287*fd82c4c4Schristos # define _GL_CXXALIAS_SYS(func,rettype,parameters) \ 288*fd82c4c4Schristos _GL_EXTERN_C int _gl_cxxalias_dummy 289*fd82c4c4Schristos #endif 290*fd82c4c4Schristos 291*fd82c4c4Schristos /* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters); 292*fd82c4c4Schristos is like _GL_CXXALIAS_SYS (func, rettype, parameters); 293*fd82c4c4Schristos except that the C function func may have a slightly different declaration. 294*fd82c4c4Schristos A cast is used to silence the "invalid conversion" error that would 295*fd82c4c4Schristos otherwise occur. */ 296*fd82c4c4Schristos #if defined __cplusplus && defined GNULIB_NAMESPACE 297*fd82c4c4Schristos # define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \ 298*fd82c4c4Schristos namespace GNULIB_NAMESPACE \ 299*fd82c4c4Schristos { \ 300*fd82c4c4Schristos static const struct _gl_ ## func ## _wrapper \ 301*fd82c4c4Schristos { \ 302*fd82c4c4Schristos typedef rettype (*type) parameters; \ 303*fd82c4c4Schristos \ 304*fd82c4c4Schristos inline operator type () const \ 305*fd82c4c4Schristos { \ 306*fd82c4c4Schristos return reinterpret_cast<type>(::func); \ 307*fd82c4c4Schristos } \ 308*fd82c4c4Schristos } func = {}; \ 309*fd82c4c4Schristos } \ 310*fd82c4c4Schristos _GL_EXTERN_C int _gl_cxxalias_dummy 311*fd82c4c4Schristos #else 312*fd82c4c4Schristos # define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \ 313*fd82c4c4Schristos _GL_EXTERN_C int _gl_cxxalias_dummy 314*fd82c4c4Schristos #endif 315*fd82c4c4Schristos 316*fd82c4c4Schristos /* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2); 317*fd82c4c4Schristos is like _GL_CXXALIAS_SYS (func, rettype, parameters); 318*fd82c4c4Schristos except that the C function is picked among a set of overloaded functions, 319*fd82c4c4Schristos namely the one with rettype2 and parameters2. Two consecutive casts 320*fd82c4c4Schristos are used to silence the "cannot find a match" and "invalid conversion" 321*fd82c4c4Schristos errors that would otherwise occur. */ 322*fd82c4c4Schristos #if defined __cplusplus && defined GNULIB_NAMESPACE 323*fd82c4c4Schristos /* The outer cast must be a reinterpret_cast. 324*fd82c4c4Schristos The inner cast: When the function is defined as a set of overloaded 325*fd82c4c4Schristos functions, it works as a static_cast<>, choosing the designated variant. 326*fd82c4c4Schristos When the function is defined as a single variant, it works as a 327*fd82c4c4Schristos reinterpret_cast<>. The parenthesized cast syntax works both ways. */ 328*fd82c4c4Schristos # define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \ 329*fd82c4c4Schristos namespace GNULIB_NAMESPACE \ 330*fd82c4c4Schristos { \ 331*fd82c4c4Schristos static const struct _gl_ ## func ## _wrapper \ 332*fd82c4c4Schristos { \ 333*fd82c4c4Schristos typedef rettype (*type) parameters; \ 334*fd82c4c4Schristos \ 335*fd82c4c4Schristos inline operator type () const \ 336*fd82c4c4Schristos { \ 337*fd82c4c4Schristos return reinterpret_cast<type>((rettype2 (*) parameters2)(::func)); \ 338*fd82c4c4Schristos } \ 339*fd82c4c4Schristos } func = {}; \ 340*fd82c4c4Schristos } \ 341*fd82c4c4Schristos _GL_EXTERN_C int _gl_cxxalias_dummy 342*fd82c4c4Schristos #else 343*fd82c4c4Schristos # define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \ 344*fd82c4c4Schristos _GL_EXTERN_C int _gl_cxxalias_dummy 345*fd82c4c4Schristos #endif 346*fd82c4c4Schristos 347*fd82c4c4Schristos /* _GL_CXXALIASWARN (func); 348*fd82c4c4Schristos causes a warning to be emitted when ::func is used but not when 349*fd82c4c4Schristos GNULIB_NAMESPACE::func is used. func must be defined without overloaded 350*fd82c4c4Schristos variants. */ 351*fd82c4c4Schristos #if defined __cplusplus && defined GNULIB_NAMESPACE 352*fd82c4c4Schristos # define _GL_CXXALIASWARN(func) \ 353*fd82c4c4Schristos _GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE) 354*fd82c4c4Schristos # define _GL_CXXALIASWARN_1(func,namespace) \ 355*fd82c4c4Schristos _GL_CXXALIASWARN_2 (func, namespace) 356*fd82c4c4Schristos /* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>, 357*fd82c4c4Schristos we enable the warning only when not optimizing. */ 358*fd82c4c4Schristos # if !__OPTIMIZE__ 359*fd82c4c4Schristos # define _GL_CXXALIASWARN_2(func,namespace) \ 360*fd82c4c4Schristos _GL_WARN_ON_USE (func, \ 361*fd82c4c4Schristos "The symbol ::" #func " refers to the system function. " \ 362*fd82c4c4Schristos "Use " #namespace "::" #func " instead.") 363*fd82c4c4Schristos # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING 364*fd82c4c4Schristos # define _GL_CXXALIASWARN_2(func,namespace) \ 365*fd82c4c4Schristos extern __typeof__ (func) func 366*fd82c4c4Schristos # else 367*fd82c4c4Schristos # define _GL_CXXALIASWARN_2(func,namespace) \ 368*fd82c4c4Schristos _GL_EXTERN_C int _gl_cxxalias_dummy 369*fd82c4c4Schristos # endif 370*fd82c4c4Schristos #else 371*fd82c4c4Schristos # define _GL_CXXALIASWARN(func) \ 372*fd82c4c4Schristos _GL_EXTERN_C int _gl_cxxalias_dummy 373*fd82c4c4Schristos #endif 374*fd82c4c4Schristos 375*fd82c4c4Schristos /* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes); 376*fd82c4c4Schristos causes a warning to be emitted when the given overloaded variant of ::func 377*fd82c4c4Schristos is used but not when GNULIB_NAMESPACE::func is used. */ 378*fd82c4c4Schristos #if defined __cplusplus && defined GNULIB_NAMESPACE 379*fd82c4c4Schristos # define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \ 380*fd82c4c4Schristos _GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \ 381*fd82c4c4Schristos GNULIB_NAMESPACE) 382*fd82c4c4Schristos # define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \ 383*fd82c4c4Schristos _GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace) 384*fd82c4c4Schristos /* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>, 385*fd82c4c4Schristos we enable the warning only when not optimizing. */ 386*fd82c4c4Schristos # if !__OPTIMIZE__ 387*fd82c4c4Schristos # define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ 388*fd82c4c4Schristos _GL_WARN_ON_USE_CXX (func, rettype, parameters_and_attributes, \ 389*fd82c4c4Schristos "The symbol ::" #func " refers to the system function. " \ 390*fd82c4c4Schristos "Use " #namespace "::" #func " instead.") 391*fd82c4c4Schristos # else 392*fd82c4c4Schristos # define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ 393*fd82c4c4Schristos _GL_EXTERN_C int _gl_cxxalias_dummy 394*fd82c4c4Schristos # endif 395*fd82c4c4Schristos #else 396*fd82c4c4Schristos # define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \ 397*fd82c4c4Schristos _GL_EXTERN_C int _gl_cxxalias_dummy 398*fd82c4c4Schristos #endif 399*fd82c4c4Schristos 400*fd82c4c4Schristos #endif /* _GL_CXXDEFS_H */ 401*fd82c4c4Schristos 402*fd82c4c4Schristos /* The definition of _GL_ARG_NONNULL is copied here. */ 403*fd82c4c4Schristos /* A C macro for declaring that specific arguments must not be NULL. 404*fd82c4c4Schristos Copyright (C) 2009-2020 Free Software Foundation, Inc. 405*fd82c4c4Schristos 406*fd82c4c4Schristos This program is free software: you can redistribute it and/or modify it 407*fd82c4c4Schristos under the terms of the GNU General Public License as published 408*fd82c4c4Schristos by the Free Software Foundation; either version 3 of the License, or 409*fd82c4c4Schristos (at your option) any later version. 410*fd82c4c4Schristos 411*fd82c4c4Schristos This program is distributed in the hope that it will be useful, 412*fd82c4c4Schristos but WITHOUT ANY WARRANTY; without even the implied warranty of 413*fd82c4c4Schristos MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 414*fd82c4c4Schristos General Public License for more details. 415*fd82c4c4Schristos 416*fd82c4c4Schristos You should have received a copy of the GNU General Public License 417*fd82c4c4Schristos along with this program. If not, see <https://www.gnu.org/licenses/>. */ 418*fd82c4c4Schristos 419*fd82c4c4Schristos /* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools 420*fd82c4c4Schristos that the values passed as arguments n, ..., m must be non-NULL pointers. 421*fd82c4c4Schristos n = 1 stands for the first argument, n = 2 for the second argument etc. */ 422*fd82c4c4Schristos #ifndef _GL_ARG_NONNULL 423*fd82c4c4Schristos # if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3 424*fd82c4c4Schristos # define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params)) 425*fd82c4c4Schristos # else 426*fd82c4c4Schristos # define _GL_ARG_NONNULL(params) 427*fd82c4c4Schristos # endif 428*fd82c4c4Schristos #endif 429*fd82c4c4Schristos 430*fd82c4c4Schristos /* The definition of _GL_WARN_ON_USE is copied here. */ 431*fd82c4c4Schristos /* A C macro for emitting warnings if a function is used. 432*fd82c4c4Schristos Copyright (C) 2010-2020 Free Software Foundation, Inc. 433*fd82c4c4Schristos 434*fd82c4c4Schristos This program is free software: you can redistribute it and/or modify it 435*fd82c4c4Schristos under the terms of the GNU General Public License as published 436*fd82c4c4Schristos by the Free Software Foundation; either version 3 of the License, or 437*fd82c4c4Schristos (at your option) any later version. 438*fd82c4c4Schristos 439*fd82c4c4Schristos This program is distributed in the hope that it will be useful, 440*fd82c4c4Schristos but WITHOUT ANY WARRANTY; without even the implied warranty of 441*fd82c4c4Schristos MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 442*fd82c4c4Schristos General Public License for more details. 443*fd82c4c4Schristos 444*fd82c4c4Schristos You should have received a copy of the GNU General Public License 445*fd82c4c4Schristos along with this program. If not, see <https://www.gnu.org/licenses/>. */ 446*fd82c4c4Schristos 447*fd82c4c4Schristos /* _GL_WARN_ON_USE (function, "literal string") issues a declaration 448*fd82c4c4Schristos for FUNCTION which will then trigger a compiler warning containing 449*fd82c4c4Schristos the text of "literal string" anywhere that function is called, if 450*fd82c4c4Schristos supported by the compiler. If the compiler does not support this 451*fd82c4c4Schristos feature, the macro expands to an unused extern declaration. 452*fd82c4c4Schristos 453*fd82c4c4Schristos _GL_WARN_ON_USE_ATTRIBUTE ("literal string") expands to the 454*fd82c4c4Schristos attribute used in _GL_WARN_ON_USE. If the compiler does not support 455*fd82c4c4Schristos this feature, it expands to empty. 456*fd82c4c4Schristos 457*fd82c4c4Schristos These macros are useful for marking a function as a potential 458*fd82c4c4Schristos portability trap, with the intent that "literal string" include 459*fd82c4c4Schristos instructions on the replacement function that should be used 460*fd82c4c4Schristos instead. 461*fd82c4c4Schristos _GL_WARN_ON_USE is for functions with 'extern' linkage. 462*fd82c4c4Schristos _GL_WARN_ON_USE_ATTRIBUTE is for functions with 'static' or 'inline' 463*fd82c4c4Schristos linkage. 464*fd82c4c4Schristos 465*fd82c4c4Schristos However, one of the reasons that a function is a portability trap is 466*fd82c4c4Schristos if it has the wrong signature. Declaring FUNCTION with a different 467*fd82c4c4Schristos signature in C is a compilation error, so this macro must use the 468*fd82c4c4Schristos same type as any existing declaration so that programs that avoid 469*fd82c4c4Schristos the problematic FUNCTION do not fail to compile merely because they 470*fd82c4c4Schristos included a header that poisoned the function. But this implies that 471*fd82c4c4Schristos _GL_WARN_ON_USE is only safe to use if FUNCTION is known to already 472*fd82c4c4Schristos have a declaration. Use of this macro implies that there must not 473*fd82c4c4Schristos be any other macro hiding the declaration of FUNCTION; but 474*fd82c4c4Schristos undefining FUNCTION first is part of the poisoning process anyway 475*fd82c4c4Schristos (although for symbols that are provided only via a macro, the result 476*fd82c4c4Schristos is a compilation error rather than a warning containing 477*fd82c4c4Schristos "literal string"). Also note that in C++, it is only safe to use if 478*fd82c4c4Schristos FUNCTION has no overloads. 479*fd82c4c4Schristos 480*fd82c4c4Schristos For an example, it is possible to poison 'getline' by: 481*fd82c4c4Schristos - adding a call to gl_WARN_ON_USE_PREPARE([[#include <stdio.h>]], 482*fd82c4c4Schristos [getline]) in configure.ac, which potentially defines 483*fd82c4c4Schristos HAVE_RAW_DECL_GETLINE 484*fd82c4c4Schristos - adding this code to a header that wraps the system <stdio.h>: 485*fd82c4c4Schristos #undef getline 486*fd82c4c4Schristos #if HAVE_RAW_DECL_GETLINE 487*fd82c4c4Schristos _GL_WARN_ON_USE (getline, "getline is required by POSIX 2008, but" 488*fd82c4c4Schristos "not universally present; use the gnulib module getline"); 489*fd82c4c4Schristos #endif 490*fd82c4c4Schristos 491*fd82c4c4Schristos It is not possible to directly poison global variables. But it is 492*fd82c4c4Schristos possible to write a wrapper accessor function, and poison that 493*fd82c4c4Schristos (less common usage, like &environ, will cause a compilation error 494*fd82c4c4Schristos rather than issue the nice warning, but the end result of informing 495*fd82c4c4Schristos the developer about their portability problem is still achieved): 496*fd82c4c4Schristos #if HAVE_RAW_DECL_ENVIRON 497*fd82c4c4Schristos static char *** 498*fd82c4c4Schristos rpl_environ (void) { return &environ; } 499*fd82c4c4Schristos _GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared"); 500*fd82c4c4Schristos # undef environ 501*fd82c4c4Schristos # define environ (*rpl_environ ()) 502*fd82c4c4Schristos #endif 503*fd82c4c4Schristos or better (avoiding contradictory use of 'static' and 'extern'): 504*fd82c4c4Schristos #if HAVE_RAW_DECL_ENVIRON 505*fd82c4c4Schristos static char *** 506*fd82c4c4Schristos _GL_WARN_ON_USE_ATTRIBUTE ("environ is not always properly declared") 507*fd82c4c4Schristos rpl_environ (void) { return &environ; } 508*fd82c4c4Schristos # undef environ 509*fd82c4c4Schristos # define environ (*rpl_environ ()) 510*fd82c4c4Schristos #endif 511*fd82c4c4Schristos */ 512*fd82c4c4Schristos #ifndef _GL_WARN_ON_USE 513*fd82c4c4Schristos 514*fd82c4c4Schristos # if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) 515*fd82c4c4Schristos /* A compiler attribute is available in gcc versions 4.3.0 and later. */ 516*fd82c4c4Schristos # define _GL_WARN_ON_USE(function, message) \ 517*fd82c4c4Schristos extern __typeof__ (function) function __attribute__ ((__warning__ (message))) 518*fd82c4c4Schristos # define _GL_WARN_ON_USE_ATTRIBUTE(message) \ 519*fd82c4c4Schristos __attribute__ ((__warning__ (message))) 520*fd82c4c4Schristos # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING 521*fd82c4c4Schristos /* Verify the existence of the function. */ 522*fd82c4c4Schristos # define _GL_WARN_ON_USE(function, message) \ 523*fd82c4c4Schristos extern __typeof__ (function) function 524*fd82c4c4Schristos # define _GL_WARN_ON_USE_ATTRIBUTE(message) 525*fd82c4c4Schristos # else /* Unsupported. */ 526*fd82c4c4Schristos # define _GL_WARN_ON_USE(function, message) \ 527*fd82c4c4Schristos _GL_WARN_EXTERN_C int _gl_warn_on_use 528*fd82c4c4Schristos # define _GL_WARN_ON_USE_ATTRIBUTE(message) 529*fd82c4c4Schristos # endif 530*fd82c4c4Schristos #endif 531*fd82c4c4Schristos 532*fd82c4c4Schristos /* _GL_WARN_ON_USE_CXX (function, rettype, parameters_and_attributes, "string") 533*fd82c4c4Schristos is like _GL_WARN_ON_USE (function, "string"), except that in C++ mode the 534*fd82c4c4Schristos function is declared with the given prototype, consisting of return type, 535*fd82c4c4Schristos parameters, and attributes. 536*fd82c4c4Schristos This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does 537*fd82c4c4Schristos not work in this case. */ 538*fd82c4c4Schristos #ifndef _GL_WARN_ON_USE_CXX 539*fd82c4c4Schristos # if !defined __cplusplus 540*fd82c4c4Schristos # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ 541*fd82c4c4Schristos _GL_WARN_ON_USE (function, msg) 542*fd82c4c4Schristos # else 543*fd82c4c4Schristos # if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) 544*fd82c4c4Schristos # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ 545*fd82c4c4Schristos extern rettype function parameters_and_attributes \ 546*fd82c4c4Schristos __attribute__ ((__warning__ (msg))) 547*fd82c4c4Schristos # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING 548*fd82c4c4Schristos /* Verify the existence of the function. */ 549*fd82c4c4Schristos # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ 550*fd82c4c4Schristos extern rettype function parameters_and_attributes 551*fd82c4c4Schristos # else /* Unsupported. */ 552*fd82c4c4Schristos # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ 553*fd82c4c4Schristos _GL_WARN_EXTERN_C int _gl_warn_on_use 554*fd82c4c4Schristos # endif 555*fd82c4c4Schristos # endif 556*fd82c4c4Schristos #endif 557*fd82c4c4Schristos 558*fd82c4c4Schristos /* _GL_WARN_EXTERN_C declaration; 559*fd82c4c4Schristos performs the declaration with C linkage. */ 560*fd82c4c4Schristos #ifndef _GL_WARN_EXTERN_C 561*fd82c4c4Schristos # if defined __cplusplus 562*fd82c4c4Schristos # define _GL_WARN_EXTERN_C extern "C" 563*fd82c4c4Schristos # else 564*fd82c4c4Schristos # define _GL_WARN_EXTERN_C extern 565*fd82c4c4Schristos # endif 566*fd82c4c4Schristos #endif 567*fd82c4c4Schristos 568*fd82c4c4Schristos 569*fd82c4c4Schristos /* Declare overridden functions. */ 570*fd82c4c4Schristos 571*fd82c4c4Schristos #if 0 572*fd82c4c4Schristos # if 0 573*fd82c4c4Schristos # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 574*fd82c4c4Schristos # undef creat 575*fd82c4c4Schristos # define creat rpl_creat 576*fd82c4c4Schristos # endif 577*fd82c4c4Schristos _GL_FUNCDECL_RPL (creat, int, (const char *filename, mode_t mode) 578*fd82c4c4Schristos _GL_ARG_NONNULL ((1))); 579*fd82c4c4Schristos _GL_CXXALIAS_RPL (creat, int, (const char *filename, mode_t mode)); 580*fd82c4c4Schristos # else 581*fd82c4c4Schristos _GL_CXXALIAS_SYS (creat, int, (const char *filename, mode_t mode)); 582*fd82c4c4Schristos # endif 583*fd82c4c4Schristos _GL_CXXALIASWARN (creat); 584*fd82c4c4Schristos #elif defined GNULIB_POSIXCHECK 585*fd82c4c4Schristos # undef creat 586*fd82c4c4Schristos /* Assume creat is always declared. */ 587*fd82c4c4Schristos _GL_WARN_ON_USE (creat, "creat is not always POSIX compliant - " 588*fd82c4c4Schristos "use gnulib module creat for portability"); 589*fd82c4c4Schristos #endif 590*fd82c4c4Schristos 591*fd82c4c4Schristos #if 1 592*fd82c4c4Schristos # if 0 593*fd82c4c4Schristos # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 594*fd82c4c4Schristos # undef fcntl 595*fd82c4c4Schristos # define fcntl rpl_fcntl 596*fd82c4c4Schristos # endif 597*fd82c4c4Schristos _GL_FUNCDECL_RPL (fcntl, int, (int fd, int action, ...)); 598*fd82c4c4Schristos _GL_CXXALIAS_RPL (fcntl, int, (int fd, int action, ...)); 599*fd82c4c4Schristos # if !GNULIB_defined_rpl_fcntl 600*fd82c4c4Schristos # define GNULIB_defined_rpl_fcntl 1 601*fd82c4c4Schristos # endif 602*fd82c4c4Schristos # else 603*fd82c4c4Schristos # if !1 604*fd82c4c4Schristos _GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...)); 605*fd82c4c4Schristos # if !GNULIB_defined_fcntl 606*fd82c4c4Schristos # define GNULIB_defined_fcntl 1 607*fd82c4c4Schristos # endif 608*fd82c4c4Schristos # endif 609*fd82c4c4Schristos _GL_CXXALIAS_SYS (fcntl, int, (int fd, int action, ...)); 610*fd82c4c4Schristos # endif 611*fd82c4c4Schristos _GL_CXXALIASWARN (fcntl); 612*fd82c4c4Schristos #elif defined GNULIB_POSIXCHECK 613*fd82c4c4Schristos # undef fcntl 614*fd82c4c4Schristos # if HAVE_RAW_DECL_FCNTL 615*fd82c4c4Schristos _GL_WARN_ON_USE (fcntl, "fcntl is not always POSIX compliant - " 616*fd82c4c4Schristos "use gnulib module fcntl for portability"); 617*fd82c4c4Schristos # endif 618*fd82c4c4Schristos #endif 619*fd82c4c4Schristos 620*fd82c4c4Schristos #if 1 621*fd82c4c4Schristos # if 0 622*fd82c4c4Schristos # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 623*fd82c4c4Schristos # undef open 624*fd82c4c4Schristos # define open rpl_open 625*fd82c4c4Schristos # endif 626*fd82c4c4Schristos _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...) 627*fd82c4c4Schristos _GL_ARG_NONNULL ((1))); 628*fd82c4c4Schristos _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...)); 629*fd82c4c4Schristos # else 630*fd82c4c4Schristos _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...)); 631*fd82c4c4Schristos # endif 632*fd82c4c4Schristos /* On HP-UX 11, in C++ mode, open() is defined as an inline function with a 633*fd82c4c4Schristos default argument. _GL_CXXALIASWARN does not work in this case. */ 634*fd82c4c4Schristos # if !defined __hpux 635*fd82c4c4Schristos _GL_CXXALIASWARN (open); 636*fd82c4c4Schristos # endif 637*fd82c4c4Schristos #elif defined GNULIB_POSIXCHECK 638*fd82c4c4Schristos # undef open 639*fd82c4c4Schristos /* Assume open is always declared. */ 640*fd82c4c4Schristos _GL_WARN_ON_USE (open, "open is not always POSIX compliant - " 641*fd82c4c4Schristos "use gnulib module open for portability"); 642*fd82c4c4Schristos #endif 643*fd82c4c4Schristos 644*fd82c4c4Schristos #if 1 645*fd82c4c4Schristos # if 0 646*fd82c4c4Schristos # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 647*fd82c4c4Schristos # undef openat 648*fd82c4c4Schristos # define openat rpl_openat 649*fd82c4c4Schristos # endif 650*fd82c4c4Schristos _GL_FUNCDECL_RPL (openat, int, 651*fd82c4c4Schristos (int fd, char const *file, int flags, /* mode_t mode */ ...) 652*fd82c4c4Schristos _GL_ARG_NONNULL ((2))); 653*fd82c4c4Schristos _GL_CXXALIAS_RPL (openat, int, 654*fd82c4c4Schristos (int fd, char const *file, int flags, /* mode_t mode */ ...)); 655*fd82c4c4Schristos # else 656*fd82c4c4Schristos # if !1 657*fd82c4c4Schristos _GL_FUNCDECL_SYS (openat, int, 658*fd82c4c4Schristos (int fd, char const *file, int flags, /* mode_t mode */ ...) 659*fd82c4c4Schristos _GL_ARG_NONNULL ((2))); 660*fd82c4c4Schristos # endif 661*fd82c4c4Schristos _GL_CXXALIAS_SYS (openat, int, 662*fd82c4c4Schristos (int fd, char const *file, int flags, /* mode_t mode */ ...)); 663*fd82c4c4Schristos # endif 664*fd82c4c4Schristos _GL_CXXALIASWARN (openat); 665*fd82c4c4Schristos #elif defined GNULIB_POSIXCHECK 666*fd82c4c4Schristos # undef openat 667*fd82c4c4Schristos # if HAVE_RAW_DECL_OPENAT 668*fd82c4c4Schristos _GL_WARN_ON_USE (openat, "openat is not portable - " 669*fd82c4c4Schristos "use gnulib module openat for portability"); 670*fd82c4c4Schristos # endif 671*fd82c4c4Schristos #endif 672*fd82c4c4Schristos 673*fd82c4c4Schristos 674*fd82c4c4Schristos /* Fix up the FD_* macros, only known to be missing on mingw. */ 675*fd82c4c4Schristos 676*fd82c4c4Schristos #ifndef FD_CLOEXEC 677*fd82c4c4Schristos # define FD_CLOEXEC 1 678*fd82c4c4Schristos #endif 679*fd82c4c4Schristos 680*fd82c4c4Schristos /* Fix up the supported F_* macros. Intentionally leave other F_* 681*fd82c4c4Schristos macros undefined. Only known to be missing on mingw. */ 682*fd82c4c4Schristos 683*fd82c4c4Schristos #ifndef F_DUPFD_CLOEXEC 684*fd82c4c4Schristos # define F_DUPFD_CLOEXEC 0x40000000 685*fd82c4c4Schristos /* Witness variable: 1 if gnulib defined F_DUPFD_CLOEXEC, 0 otherwise. */ 686*fd82c4c4Schristos # define GNULIB_defined_F_DUPFD_CLOEXEC 1 687*fd82c4c4Schristos #else 688*fd82c4c4Schristos # define GNULIB_defined_F_DUPFD_CLOEXEC 0 689*fd82c4c4Schristos #endif 690*fd82c4c4Schristos 691*fd82c4c4Schristos #ifndef F_DUPFD 692*fd82c4c4Schristos # define F_DUPFD 1 693*fd82c4c4Schristos #endif 694*fd82c4c4Schristos 695*fd82c4c4Schristos #ifndef F_GETFD 696*fd82c4c4Schristos # define F_GETFD 2 697*fd82c4c4Schristos #endif 698*fd82c4c4Schristos 699*fd82c4c4Schristos /* Fix up the O_* macros. */ 700*fd82c4c4Schristos 701*fd82c4c4Schristos /* AIX 7.1 with XL C 12.1 defines O_CLOEXEC, O_NOFOLLOW, and O_TTY_INIT 702*fd82c4c4Schristos to values outside 'int' range, so omit these misdefinitions. 703*fd82c4c4Schristos But avoid namespace pollution on non-AIX systems. */ 704*fd82c4c4Schristos #ifdef _AIX 705*fd82c4c4Schristos # include <limits.h> 706*fd82c4c4Schristos # if defined O_CLOEXEC && ! (INT_MIN <= O_CLOEXEC && O_CLOEXEC <= INT_MAX) 707*fd82c4c4Schristos # undef O_CLOEXEC 708*fd82c4c4Schristos # endif 709*fd82c4c4Schristos # if defined O_NOFOLLOW && ! (INT_MIN <= O_NOFOLLOW && O_NOFOLLOW <= INT_MAX) 710*fd82c4c4Schristos # undef O_NOFOLLOW 711*fd82c4c4Schristos # endif 712*fd82c4c4Schristos # if defined O_TTY_INIT && ! (INT_MIN <= O_TTY_INIT && O_TTY_INIT <= INT_MAX) 713*fd82c4c4Schristos # undef O_TTY_INIT 714*fd82c4c4Schristos # endif 715*fd82c4c4Schristos #endif 716*fd82c4c4Schristos 717*fd82c4c4Schristos #if !defined O_DIRECT && defined O_DIRECTIO 718*fd82c4c4Schristos /* Tru64 spells it 'O_DIRECTIO'. */ 719*fd82c4c4Schristos # define O_DIRECT O_DIRECTIO 720*fd82c4c4Schristos #endif 721*fd82c4c4Schristos 722*fd82c4c4Schristos #if !defined O_CLOEXEC && defined O_NOINHERIT 723*fd82c4c4Schristos /* Mingw spells it 'O_NOINHERIT'. */ 724*fd82c4c4Schristos # define O_CLOEXEC O_NOINHERIT 725*fd82c4c4Schristos #endif 726*fd82c4c4Schristos 727*fd82c4c4Schristos #ifndef O_CLOEXEC 728*fd82c4c4Schristos # define O_CLOEXEC 0x40000000 /* Try to not collide with system O_* flags. */ 729*fd82c4c4Schristos # define GNULIB_defined_O_CLOEXEC 1 730*fd82c4c4Schristos #else 731*fd82c4c4Schristos # define GNULIB_defined_O_CLOEXEC 0 732*fd82c4c4Schristos #endif 733*fd82c4c4Schristos 734*fd82c4c4Schristos #ifndef O_DIRECT 735*fd82c4c4Schristos # define O_DIRECT 0 736*fd82c4c4Schristos #endif 737*fd82c4c4Schristos 738*fd82c4c4Schristos #ifndef O_DIRECTORY 739*fd82c4c4Schristos # define O_DIRECTORY 0 740*fd82c4c4Schristos #endif 741*fd82c4c4Schristos 742*fd82c4c4Schristos #ifndef O_DSYNC 743*fd82c4c4Schristos # define O_DSYNC 0 744*fd82c4c4Schristos #endif 745*fd82c4c4Schristos 746*fd82c4c4Schristos #ifndef O_EXEC 747*fd82c4c4Schristos # define O_EXEC O_RDONLY /* This is often close enough in older systems. */ 748*fd82c4c4Schristos #endif 749*fd82c4c4Schristos 750*fd82c4c4Schristos #ifndef O_IGNORE_CTTY 751*fd82c4c4Schristos # define O_IGNORE_CTTY 0 752*fd82c4c4Schristos #endif 753*fd82c4c4Schristos 754*fd82c4c4Schristos #ifndef O_NDELAY 755*fd82c4c4Schristos # define O_NDELAY 0 756*fd82c4c4Schristos #endif 757*fd82c4c4Schristos 758*fd82c4c4Schristos #ifndef O_NOATIME 759*fd82c4c4Schristos # define O_NOATIME 0 760*fd82c4c4Schristos #endif 761*fd82c4c4Schristos 762*fd82c4c4Schristos #ifndef O_NONBLOCK 763*fd82c4c4Schristos # define O_NONBLOCK O_NDELAY 764*fd82c4c4Schristos #endif 765*fd82c4c4Schristos 766*fd82c4c4Schristos /* If the gnulib module 'nonblocking' is in use, guarantee a working non-zero 767*fd82c4c4Schristos value of O_NONBLOCK. Otherwise, O_NONBLOCK is defined (above) to O_NDELAY 768*fd82c4c4Schristos or to 0 as fallback. */ 769*fd82c4c4Schristos #if 0 770*fd82c4c4Schristos # if O_NONBLOCK 771*fd82c4c4Schristos # define GNULIB_defined_O_NONBLOCK 0 772*fd82c4c4Schristos # else 773*fd82c4c4Schristos # define GNULIB_defined_O_NONBLOCK 1 774*fd82c4c4Schristos # undef O_NONBLOCK 775*fd82c4c4Schristos # define O_NONBLOCK 0x40000000 776*fd82c4c4Schristos # endif 777*fd82c4c4Schristos #endif 778*fd82c4c4Schristos 779*fd82c4c4Schristos #ifndef O_NOCTTY 780*fd82c4c4Schristos # define O_NOCTTY 0 781*fd82c4c4Schristos #endif 782*fd82c4c4Schristos 783*fd82c4c4Schristos #ifndef O_NOFOLLOW 784*fd82c4c4Schristos # define O_NOFOLLOW 0 785*fd82c4c4Schristos #endif 786*fd82c4c4Schristos 787*fd82c4c4Schristos #ifndef O_NOLINK 788*fd82c4c4Schristos # define O_NOLINK 0 789*fd82c4c4Schristos #endif 790*fd82c4c4Schristos 791*fd82c4c4Schristos #ifndef O_NOLINKS 792*fd82c4c4Schristos # define O_NOLINKS 0 793*fd82c4c4Schristos #endif 794*fd82c4c4Schristos 795*fd82c4c4Schristos #ifndef O_NOTRANS 796*fd82c4c4Schristos # define O_NOTRANS 0 797*fd82c4c4Schristos #endif 798*fd82c4c4Schristos 799*fd82c4c4Schristos #ifndef O_RSYNC 800*fd82c4c4Schristos # define O_RSYNC 0 801*fd82c4c4Schristos #endif 802*fd82c4c4Schristos 803*fd82c4c4Schristos #ifndef O_SEARCH 804*fd82c4c4Schristos # define O_SEARCH O_RDONLY /* This is often close enough in older systems. */ 805*fd82c4c4Schristos #endif 806*fd82c4c4Schristos 807*fd82c4c4Schristos #ifndef O_SYNC 808*fd82c4c4Schristos # define O_SYNC 0 809*fd82c4c4Schristos #endif 810*fd82c4c4Schristos 811*fd82c4c4Schristos #ifndef O_TTY_INIT 812*fd82c4c4Schristos # define O_TTY_INIT 0 813*fd82c4c4Schristos #endif 814*fd82c4c4Schristos 815*fd82c4c4Schristos #if ~O_ACCMODE & (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH) 816*fd82c4c4Schristos # undef O_ACCMODE 817*fd82c4c4Schristos # define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH) 818*fd82c4c4Schristos #endif 819*fd82c4c4Schristos 820*fd82c4c4Schristos /* For systems that distinguish between text and binary I/O. 821*fd82c4c4Schristos O_BINARY is usually declared in fcntl.h */ 822*fd82c4c4Schristos #if !defined O_BINARY && defined _O_BINARY 823*fd82c4c4Schristos /* For MSC-compatible compilers. */ 824*fd82c4c4Schristos # define O_BINARY _O_BINARY 825*fd82c4c4Schristos # define O_TEXT _O_TEXT 826*fd82c4c4Schristos #endif 827*fd82c4c4Schristos 828*fd82c4c4Schristos #if defined __BEOS__ || defined __HAIKU__ 829*fd82c4c4Schristos /* BeOS 5 and Haiku have O_BINARY and O_TEXT, but they have no effect. */ 830*fd82c4c4Schristos # undef O_BINARY 831*fd82c4c4Schristos # undef O_TEXT 832*fd82c4c4Schristos #endif 833*fd82c4c4Schristos 834*fd82c4c4Schristos #ifndef O_BINARY 835*fd82c4c4Schristos # define O_BINARY 0 836*fd82c4c4Schristos # define O_TEXT 0 837*fd82c4c4Schristos #endif 838*fd82c4c4Schristos 839*fd82c4c4Schristos /* Fix up the AT_* macros. */ 840*fd82c4c4Schristos 841*fd82c4c4Schristos /* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive. Its 842*fd82c4c4Schristos value exceeds INT_MAX, so its use as an int doesn't conform to the 843*fd82c4c4Schristos C standard, and GCC and Sun C complain in some cases. If the bug 844*fd82c4c4Schristos is present, undef AT_FDCWD here, so it can be redefined below. */ 845*fd82c4c4Schristos #if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553 846*fd82c4c4Schristos # undef AT_FDCWD 847*fd82c4c4Schristos #endif 848*fd82c4c4Schristos 849*fd82c4c4Schristos /* Use the same bit pattern as Solaris 9, but with the proper 850*fd82c4c4Schristos signedness. The bit pattern is important, in case this actually is 851*fd82c4c4Schristos Solaris with the above workaround. */ 852*fd82c4c4Schristos #ifndef AT_FDCWD 853*fd82c4c4Schristos # define AT_FDCWD (-3041965) 854*fd82c4c4Schristos #endif 855*fd82c4c4Schristos 856*fd82c4c4Schristos /* Use the same values as Solaris 9. This shouldn't matter, but 857*fd82c4c4Schristos there's no real reason to differ. */ 858*fd82c4c4Schristos #ifndef AT_SYMLINK_NOFOLLOW 859*fd82c4c4Schristos # define AT_SYMLINK_NOFOLLOW 4096 860*fd82c4c4Schristos #endif 861*fd82c4c4Schristos 862*fd82c4c4Schristos #ifndef AT_REMOVEDIR 863*fd82c4c4Schristos # define AT_REMOVEDIR 1 864*fd82c4c4Schristos #endif 865*fd82c4c4Schristos 866*fd82c4c4Schristos /* Solaris 9 lacks these two, so just pick unique values. */ 867*fd82c4c4Schristos #ifndef AT_SYMLINK_FOLLOW 868*fd82c4c4Schristos # define AT_SYMLINK_FOLLOW 2 869*fd82c4c4Schristos #endif 870*fd82c4c4Schristos 871*fd82c4c4Schristos #ifndef AT_EACCESS 872*fd82c4c4Schristos # define AT_EACCESS 4 873*fd82c4c4Schristos #endif 874*fd82c4c4Schristos 875*fd82c4c4Schristos 876*fd82c4c4Schristos #endif /* _GL_FCNTL_H */ 877*fd82c4c4Schristos #endif /* _GL_FCNTL_H */ 878*fd82c4c4Schristos #endif 879