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Re: getrandom not replaced
|
From: |
Po Lu |
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Subject: |
Re: getrandom not replaced |
|
Date: |
Mon, 26 Dec 2022 10:50:40 +0800 |
|
User-agent: |
Gnus/5.13 (Gnus v5.13) |
Paul Eggert <eggert@cs.ucla.edu> writes:
> What's the output of gcc -E?
Which of armv7a-unknown-linux-android19-clang -E or gcc -E on the host
do you mean?
> Also, it sounds like lib/sys/random.h wasn't generated correctly;
> what's in that file?
Here it is, thanks.
/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
/* Substitute for <sys/random.h>.
Copyright (C) 2020-2022 Free Software Foundation, Inc.
This file is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
This file is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
# if __GNUC__ >= 3
#pragma GCC system_header
# endif
#ifndef _GL_SYS_RANDOM_H
#if 1
/* On uClibc < 1.0.35, <sys/random.h> assumes prior inclusion of <stddef.h>.
Do not use __UCLIBC__ here, as it might not be defined yet.
But avoid namespace pollution on glibc systems. */
# ifndef __GLIBC__
# include <stddef.h>
# endif
/* On Mac OS X 10.5, <sys/random.h> assumes prior inclusion of <sys/types.h>.
On Max OS X 10.13, <sys/random.h> assumes prior inclusion of a file that
includes <Availability.h>, such as <stdlib.h> or <unistd.h>. */
# if defined __APPLE__ && defined __MACH__ /* Mac OS X */
# include <sys/types.h>
# include <stdlib.h>
# endif
/* The include_next requires a split double-inclusion guard. */
# include_next <sys/random.h>
#endif
#ifndef _GL_SYS_RANDOM_H
#define _GL_SYS_RANDOM_H
#include <sys/types.h>
/* Define the GRND_* constants. */
#ifndef GRND_NONBLOCK
# define GRND_NONBLOCK 1
# define GRND_RANDOM 2
#endif
/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
/* C++ compatible function declaration macros.
Copyright (C) 2010-2022 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef _GL_CXXDEFS_H
#define _GL_CXXDEFS_H
/* Begin/end the GNULIB_NAMESPACE namespace. */
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE {
# define _GL_END_NAMESPACE }
#else
# define _GL_BEGIN_NAMESPACE
# define _GL_END_NAMESPACE
#endif
/* The three most frequent use cases of these macros are:
* For providing a substitute for a function that is missing on some
platforms, but is declared and works fine on the platforms on which
it exists:
#if @GNULIB_FOO@
# if !@HAVE_FOO@
_GL_FUNCDECL_SYS (foo, ...);
# endif
_GL_CXXALIAS_SYS (foo, ...);
_GL_CXXALIASWARN (foo);
#elif defined GNULIB_POSIXCHECK
...
#endif
* For providing a replacement for a function that exists on all platforms,
but is broken/insufficient and needs to be replaced on some platforms:
#if @GNULIB_FOO@
# if @REPLACE_FOO@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef foo
# define foo rpl_foo
# endif
_GL_FUNCDECL_RPL (foo, ...);
_GL_CXXALIAS_RPL (foo, ...);
# else
_GL_CXXALIAS_SYS (foo, ...);
# endif
_GL_CXXALIASWARN (foo);
#elif defined GNULIB_POSIXCHECK
...
#endif
* For providing a replacement for a function that exists on some platforms
but is broken/insufficient and needs to be replaced on some of them and
is additionally either missing or undeclared on some other platforms:
#if @GNULIB_FOO@
# if @REPLACE_FOO@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef foo
# define foo rpl_foo
# endif
_GL_FUNCDECL_RPL (foo, ...);
_GL_CXXALIAS_RPL (foo, ...);
# else
# if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@
_GL_FUNCDECL_SYS (foo, ...);
# endif
_GL_CXXALIAS_SYS (foo, ...);
# endif
_GL_CXXALIASWARN (foo);
#elif defined GNULIB_POSIXCHECK
...
#endif
*/
/* _GL_EXTERN_C declaration;
performs the declaration with C linkage. */
#if defined __cplusplus
# define _GL_EXTERN_C extern "C"
#else
# define _GL_EXTERN_C extern
#endif
/* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes);
declares a replacement function, named rpl_func, with the given prototype,
consisting of return type, parameters, and attributes.
Example:
_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
_GL_ARG_NONNULL ((1)));
*/
#define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \
_GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes)
#define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \
_GL_EXTERN_C rettype rpl_func parameters_and_attributes
/* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes);
declares the system function, named func, with the given prototype,
consisting of return type, parameters, and attributes.
Example:
_GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...)
_GL_ARG_NONNULL ((1)));
*/
#define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \
_GL_EXTERN_C rettype func parameters_and_attributes
/* _GL_CXXALIAS_RPL (func, rettype, parameters);
declares a C++ alias called GNULIB_NAMESPACE::func
that redirects to rpl_func, if GNULIB_NAMESPACE is defined.
Example:
_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
Wrapping rpl_func in an object with an inline conversion operator
avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is
actually used in the program. */
#define _GL_CXXALIAS_RPL(func,rettype,parameters) \
_GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters)
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
namespace GNULIB_NAMESPACE \
{ \
static const struct _gl_ ## func ## _wrapper \
{ \
typedef rettype (*type) parameters; \
\
inline operator type () const \
{ \
return ::rpl_func; \
} \
} func = {}; \
} \
_GL_EXTERN_C int _gl_cxxalias_dummy
#else
# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
_GL_EXTERN_C int _gl_cxxalias_dummy
#endif
/* _GL_CXXALIAS_MDA (func, rettype, parameters);
is to be used when func is a Microsoft deprecated alias, on native Windows.
It declares a C++ alias called GNULIB_NAMESPACE::func
that redirects to _func, if GNULIB_NAMESPACE is defined.
Example:
_GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...));
*/
#define _GL_CXXALIAS_MDA(func,rettype,parameters) \
_GL_CXXALIAS_RPL_1 (func, _##func, rettype, parameters)
/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters);
is like _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters);
except that the C function rpl_func may have a slightly different
declaration. A cast is used to silence the "invalid conversion" error
that would otherwise occur. */
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
namespace GNULIB_NAMESPACE \
{ \
static const struct _gl_ ## func ## _wrapper \
{ \
typedef rettype (*type) parameters; \
\
inline operator type () const \
{ \
return reinterpret_cast<type>(::rpl_func); \
} \
} func = {}; \
} \
_GL_EXTERN_C int _gl_cxxalias_dummy
#else
# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
_GL_EXTERN_C int _gl_cxxalias_dummy
#endif
/* _GL_CXXALIAS_MDA_CAST (func, rettype, parameters);
is like _GL_CXXALIAS_MDA (func, rettype, parameters);
except that the C function func may have a slightly different declaration.
A cast is used to silence the "invalid conversion" error that would
otherwise occur. */
#define _GL_CXXALIAS_MDA_CAST(func,rettype,parameters) \
_GL_CXXALIAS_RPL_CAST_1 (func, _##func, rettype, parameters)
/* _GL_CXXALIAS_SYS (func, rettype, parameters);
declares a C++ alias called GNULIB_NAMESPACE::func
that redirects to the system provided function func, if GNULIB_NAMESPACE
is defined.
Example:
_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
Wrapping func in an object with an inline conversion operator
avoids a reference to func unless GNULIB_NAMESPACE::func is
actually used in the program. */
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
namespace GNULIB_NAMESPACE \
{ \
static const struct _gl_ ## func ## _wrapper \
{ \
typedef rettype (*type) parameters; \
\
inline operator type () const \
{ \
return ::func; \
} \
} func = {}; \
} \
_GL_EXTERN_C int _gl_cxxalias_dummy
#else
# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
_GL_EXTERN_C int _gl_cxxalias_dummy
#endif
/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters);
is like _GL_CXXALIAS_SYS (func, rettype, parameters);
except that the C function func may have a slightly different declaration.
A cast is used to silence the "invalid conversion" error that would
otherwise occur. */
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
namespace GNULIB_NAMESPACE \
{ \
static const struct _gl_ ## func ## _wrapper \
{ \
typedef rettype (*type) parameters; \
\
inline operator type () const \
{ \
return reinterpret_cast<type>(::func); \
} \
} func = {}; \
} \
_GL_EXTERN_C int _gl_cxxalias_dummy
#else
# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
_GL_EXTERN_C int _gl_cxxalias_dummy
#endif
/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2);
is like _GL_CXXALIAS_SYS (func, rettype, parameters);
except that the C function is picked among a set of overloaded functions,
namely the one with rettype2 and parameters2. Two consecutive casts
are used to silence the "cannot find a match" and "invalid conversion"
errors that would otherwise occur. */
#if defined __cplusplus && defined GNULIB_NAMESPACE
/* The outer cast must be a reinterpret_cast.
The inner cast: When the function is defined as a set of overloaded
functions, it works as a static_cast<>, choosing the designated variant.
When the function is defined as a single variant, it works as a
reinterpret_cast<>. The parenthesized cast syntax works both ways. */
# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
namespace GNULIB_NAMESPACE \
{ \
static const struct _gl_ ## func ## _wrapper \
{ \
typedef rettype (*type) parameters; \
\
inline operator type () const \
{ \
return reinterpret_cast<type>((rettype2 (*) parameters2)(::func)); \
} \
} func = {}; \
} \
_GL_EXTERN_C int _gl_cxxalias_dummy
#else
# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
_GL_EXTERN_C int _gl_cxxalias_dummy
#endif
/* _GL_CXXALIASWARN (func);
causes a warning to be emitted when ::func is used but not when
GNULIB_NAMESPACE::func is used. func must be defined without overloaded
variants. */
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIASWARN(func) \
_GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE)
# define _GL_CXXALIASWARN_1(func,namespace) \
_GL_CXXALIASWARN_2 (func, namespace)
/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
we enable the warning only when not optimizing. */
# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
# define _GL_CXXALIASWARN_2(func,namespace) \
_GL_WARN_ON_USE (func, \
"The symbol ::" #func " refers to the system function. " \
"Use " #namespace "::" #func " instead.")
# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
# define _GL_CXXALIASWARN_2(func,namespace) \
extern __typeof__ (func) func
# else
# define _GL_CXXALIASWARN_2(func,namespace) \
_GL_EXTERN_C int _gl_cxxalias_dummy
# endif
#else
# define _GL_CXXALIASWARN(func) \
_GL_EXTERN_C int _gl_cxxalias_dummy
#endif
/* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes);
causes a warning to be emitted when the given overloaded variant of ::func
is used but not when GNULIB_NAMESPACE::func is used. */
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
_GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \
GNULIB_NAMESPACE)
# define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \
_GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace)
/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
we enable the warning only when not optimizing. */
# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace)
\
_GL_WARN_ON_USE_CXX (func, rettype, rettype, parameters_and_attributes, \
"The symbol ::" #func " refers to the system function.
" \
"Use " #namespace "::" #func " instead.")
# else
# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace)
\
_GL_EXTERN_C int _gl_cxxalias_dummy
# endif
#else
# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
_GL_EXTERN_C int _gl_cxxalias_dummy
#endif
#endif /* _GL_CXXDEFS_H */
/* The definition of _GL_ARG_NONNULL is copied here. */
/* A C macro for declaring that specific arguments must not be NULL.
Copyright (C) 2009-2022 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
that the values passed as arguments n, ..., m must be non-NULL pointers.
n = 1 stands for the first argument, n = 2 for the second argument etc. */
#ifndef _GL_ARG_NONNULL
# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__
# define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
# else
# define _GL_ARG_NONNULL(params)
# endif
#endif
/* The definition of _GL_WARN_ON_USE is copied here. */
/* A C macro for emitting warnings if a function is used.
Copyright (C) 2010-2022 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* _GL_WARN_ON_USE (function, "literal string") issues a declaration
for FUNCTION which will then trigger a compiler warning containing
the text of "literal string" anywhere that function is called, if
supported by the compiler. If the compiler does not support this
feature, the macro expands to an unused extern declaration.
_GL_WARN_ON_USE_ATTRIBUTE ("literal string") expands to the
attribute used in _GL_WARN_ON_USE. If the compiler does not support
this feature, it expands to empty.
These macros are useful for marking a function as a potential
portability trap, with the intent that "literal string" include
instructions on the replacement function that should be used
instead.
_GL_WARN_ON_USE is for functions with 'extern' linkage.
_GL_WARN_ON_USE_ATTRIBUTE is for functions with 'static' or 'inline'
linkage.
However, one of the reasons that a function is a portability trap is
if it has the wrong signature. Declaring FUNCTION with a different
signature in C is a compilation error, so this macro must use the
same type as any existing declaration so that programs that avoid
the problematic FUNCTION do not fail to compile merely because they
included a header that poisoned the function. But this implies that
_GL_WARN_ON_USE is only safe to use if FUNCTION is known to already
have a declaration. Use of this macro implies that there must not
be any other macro hiding the declaration of FUNCTION; but
undefining FUNCTION first is part of the poisoning process anyway
(although for symbols that are provided only via a macro, the result
is a compilation error rather than a warning containing
"literal string"). Also note that in C++, it is only safe to use if
FUNCTION has no overloads.
For an example, it is possible to poison 'getline' by:
- adding a call to gl_WARN_ON_USE_PREPARE([[#include <stdio.h>]],
[getline]) in configure.ac, which potentially defines
HAVE_RAW_DECL_GETLINE
- adding this code to a header that wraps the system <stdio.h>:
#undef getline
#if HAVE_RAW_DECL_GETLINE
_GL_WARN_ON_USE (getline, "getline is required by POSIX 2008, but"
"not universally present; use the gnulib module getline");
#endif
It is not possible to directly poison global variables. But it is
possible to write a wrapper accessor function, and poison that
(less common usage, like &environ, will cause a compilation error
rather than issue the nice warning, but the end result of informing
the developer about their portability problem is still achieved):
#if HAVE_RAW_DECL_ENVIRON
static char ***
rpl_environ (void) { return &environ; }
_GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared");
# undef environ
# define environ (*rpl_environ ())
#endif
or better (avoiding contradictory use of 'static' and 'extern'):
#if HAVE_RAW_DECL_ENVIRON
static char ***
_GL_WARN_ON_USE_ATTRIBUTE ("environ is not always properly declared")
rpl_environ (void) { return &environ; }
# undef environ
# define environ (*rpl_environ ())
#endif
*/
#ifndef _GL_WARN_ON_USE
# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
/* A compiler attribute is available in gcc versions 4.3.0 and later. */
# define _GL_WARN_ON_USE(function, message) \
_GL_WARN_EXTERN_C __typeof__ (function) function __attribute__ ((__warning__
(message)))
# define _GL_WARN_ON_USE_ATTRIBUTE(message) \
__attribute__ ((__warning__ (message)))
# elif __clang_major__ >= 4
/* Another compiler attribute is available in clang. */
# define _GL_WARN_ON_USE(function, message) \
_GL_WARN_EXTERN_C __typeof__ (function) function \
__attribute__ ((__diagnose_if__ (1, message, "warning")))
# define _GL_WARN_ON_USE_ATTRIBUTE(message) \
__attribute__ ((__diagnose_if__ (1, message, "warning")))
# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
/* Verify the existence of the function. */
# define _GL_WARN_ON_USE(function, message) \
_GL_WARN_EXTERN_C __typeof__ (function) function
# define _GL_WARN_ON_USE_ATTRIBUTE(message)
# else /* Unsupported. */
# define _GL_WARN_ON_USE(function, message) \
_GL_WARN_EXTERN_C int _gl_warn_on_use
# define _GL_WARN_ON_USE_ATTRIBUTE(message)
# endif
#endif
/* _GL_WARN_ON_USE_CXX (function, rettype_gcc, rettype_clang,
parameters_and_attributes, "message")
is like _GL_WARN_ON_USE (function, "message"), except that in C++ mode the
function is declared with the given prototype, consisting of return type,
parameters, and attributes.
This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does
not work in this case. */
#ifndef _GL_WARN_ON_USE_CXX
# if !defined __cplusplus
# define
_GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg)
\
_GL_WARN_ON_USE (function, msg)
# else
# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
/* A compiler attribute is available in gcc versions 4.3.0 and later. */
# define
_GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg)
\
extern rettype_gcc function parameters_and_attributes \
__attribute__ ((__warning__ (msg)))
# elif __clang_major__ >= 4
/* Another compiler attribute is available in clang. */
# define
_GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg)
\
extern rettype_clang function parameters_and_attributes \
__attribute__ ((__diagnose_if__ (1, msg, "warning")))
# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
/* Verify the existence of the function. */
# define
_GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg)
\
extern rettype_gcc function parameters_and_attributes
# else /* Unsupported. */
# define
_GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg)
\
_GL_WARN_EXTERN_C int _gl_warn_on_use
# endif
# endif
#endif
/* _GL_WARN_EXTERN_C declaration;
performs the declaration with C linkage. */
#ifndef _GL_WARN_EXTERN_C
# if defined __cplusplus
# define _GL_WARN_EXTERN_C extern "C"
# else
# define _GL_WARN_EXTERN_C extern
# endif
#endif
/* Declare overridden functions. */
#if 1
/* Fill a buffer with random bytes. */
# if 0
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef getrandom
# define getrandom rpl_getrandom
# endif
_GL_FUNCDECL_RPL (getrandom, ssize_t,
(void *buffer, size_t length, unsigned int flags)
_GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (getrandom, ssize_t,
(void *buffer, size_t length, unsigned int flags));
# else
# if !0
_GL_FUNCDECL_SYS (getrandom, ssize_t,
(void *buffer, size_t length, unsigned int flags)
_GL_ARG_NONNULL ((1)));
# endif
_GL_CXXALIAS_SYS (getrandom, ssize_t,
(void *buffer, size_t length, unsigned int flags));
# endif
# if __GLIBC__ + (__GLIBC_MINOR__ >= 25) > 2
_GL_CXXALIASWARN (getrandom);
# endif
#elif defined GNULIB_POSIXCHECK
# undef getrandom
# if HAVE_RAW_DECL_GETRANDOM
_GL_WARN_ON_USE (getrandom, "getrandom is unportable - "
"use gnulib module getrandom for portability");
# endif
#endif
#endif /* _GL_SYS_RANDOM_H */
#endif /* _GL_SYS_RANDOM_H */