Attachment #40951 for bug #67578

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Lines 267-272 Link Here

(-)a/libstdc++-v3/config.h.in (+3 lines)
267	/* Define if futex syscall is available. */	267	/* Define if futex syscall is available. */
268	#undef HAVE_LINUX_FUTEX	268	#undef HAVE_LINUX_FUTEX
269		269
		270	/* Define to 1 if you have the <linux/random.h> header file. */
		271	#undef HAVE_LINUX_RANDOM_H
		272
270	/* Define to 1 if you have the <locale.h> header file. */	273	/* Define to 1 if you have the <locale.h> header file. */
271	#undef HAVE_LOCALE_H	274	#undef HAVE_LOCALE_H
272		275

Lines 444-449 FUNC:_ZNKSt13basic_fstreamIwSt11char_traitsIwEE7is_openEv@GLIBCXX_3.4 Link Here

(-)a/libstdc++-v3/config/abi/post/i386-linux-gnu/baseline_symbols.txt (+1 lines)
444	FUNC:_ZNKSt13basic_istreamIwSt11char_traitsIwEE6gcountEv@@GLIBCXX_3.4	444	FUNC:_ZNKSt13basic_istreamIwSt11char_traitsIwEE6gcountEv@@GLIBCXX_3.4
445	FUNC:_ZNKSt13basic_istreamIwSt11char_traitsIwEE6sentrycvbEv@@GLIBCXX_3.4	445	FUNC:_ZNKSt13basic_istreamIwSt11char_traitsIwEE6sentrycvbEv@@GLIBCXX_3.4
446	FUNC:_ZNKSt13basic_ostreamIwSt11char_traitsIwEE6sentrycvbEv@@GLIBCXX_3.4	446	FUNC:_ZNKSt13basic_ostreamIwSt11char_traitsIwEE6sentrycvbEv@@GLIBCXX_3.4
		447	FUNC:_ZNKSt13random_device13_M_getentropyEv@@GLIBCXX_3.4.23
447	FUNC:_ZNKSt13runtime_error4whatEv@@GLIBCXX_3.4	448	FUNC:_ZNKSt13runtime_error4whatEv@@GLIBCXX_3.4
448	FUNC:_ZNKSt14basic_ifstreamIcSt11char_traitsIcEE5rdbufEv@@GLIBCXX_3.4	449	FUNC:_ZNKSt14basic_ifstreamIcSt11char_traitsIcEE5rdbufEv@@GLIBCXX_3.4
449	FUNC:_ZNKSt14basic_ifstreamIcSt11char_traitsIcEE7is_openEv@@GLIBCXX_3.4.5	450	FUNC:_ZNKSt14basic_ifstreamIcSt11char_traitsIcEE7is_openEv@@GLIBCXX_3.4.5

Lines 444-449 FUNC:_ZNKSt13basic_fstreamIwSt11char_traitsIwEE7is_openEv@GLIBCXX_3.4 Link Here

(-)a/libstdc++-v3/config/abi/post/i486-linux-gnu/baseline_symbols.txt (+1 lines)
444	FUNC:_ZNKSt13basic_istreamIwSt11char_traitsIwEE6gcountEv@@GLIBCXX_3.4	444	FUNC:_ZNKSt13basic_istreamIwSt11char_traitsIwEE6gcountEv@@GLIBCXX_3.4
445	FUNC:_ZNKSt13basic_istreamIwSt11char_traitsIwEE6sentrycvbEv@@GLIBCXX_3.4	445	FUNC:_ZNKSt13basic_istreamIwSt11char_traitsIwEE6sentrycvbEv@@GLIBCXX_3.4
446	FUNC:_ZNKSt13basic_ostreamIwSt11char_traitsIwEE6sentrycvbEv@@GLIBCXX_3.4	446	FUNC:_ZNKSt13basic_ostreamIwSt11char_traitsIwEE6sentrycvbEv@@GLIBCXX_3.4
		447	FUNC:_ZNKSt13random_device13_M_getentropyEv@@GLIBCXX_3.4.23
447	FUNC:_ZNKSt13runtime_error4whatEv@@GLIBCXX_3.4	448	FUNC:_ZNKSt13runtime_error4whatEv@@GLIBCXX_3.4
448	FUNC:_ZNKSt14basic_ifstreamIcSt11char_traitsIcEE5rdbufEv@@GLIBCXX_3.4	449	FUNC:_ZNKSt14basic_ifstreamIcSt11char_traitsIcEE5rdbufEv@@GLIBCXX_3.4
449	FUNC:_ZNKSt14basic_ifstreamIcSt11char_traitsIcEE7is_openEv@@GLIBCXX_3.4.5	450	FUNC:_ZNKSt14basic_ifstreamIcSt11char_traitsIcEE7is_openEv@@GLIBCXX_3.4.5

Lines 444-449 FUNC:_ZNKSt13basic_fstreamIwSt11char_traitsIwEE7is_openEv@GLIBCXX_3.4 Link Here

(-)a/libstdc++-v3/config/abi/post/x86_64-linux-gnu/baseline_symbols.txt (+1 lines)
444	FUNC:_ZNKSt13basic_istreamIwSt11char_traitsIwEE6gcountEv@@GLIBCXX_3.4	444	FUNC:_ZNKSt13basic_istreamIwSt11char_traitsIwEE6gcountEv@@GLIBCXX_3.4
445	FUNC:_ZNKSt13basic_istreamIwSt11char_traitsIwEE6sentrycvbEv@@GLIBCXX_3.4	445	FUNC:_ZNKSt13basic_istreamIwSt11char_traitsIwEE6sentrycvbEv@@GLIBCXX_3.4
446	FUNC:_ZNKSt13basic_ostreamIwSt11char_traitsIwEE6sentrycvbEv@@GLIBCXX_3.4	446	FUNC:_ZNKSt13basic_ostreamIwSt11char_traitsIwEE6sentrycvbEv@@GLIBCXX_3.4
		447	FUNC:_ZNKSt13random_device13_M_getentropyEv@@GLIBCXX_3.4.23
447	FUNC:_ZNKSt13runtime_error4whatEv@@GLIBCXX_3.4	448	FUNC:_ZNKSt13runtime_error4whatEv@@GLIBCXX_3.4
448	FUNC:_ZNKSt14basic_ifstreamIcSt11char_traitsIcEE5rdbufEv@@GLIBCXX_3.4	449	FUNC:_ZNKSt14basic_ifstreamIcSt11char_traitsIcEE5rdbufEv@@GLIBCXX_3.4
449	FUNC:_ZNKSt14basic_ifstreamIcSt11char_traitsIcEE7is_openEv@@GLIBCXX_3.4.5	450	FUNC:_ZNKSt14basic_ifstreamIcSt11char_traitsIcEE7is_openEv@@GLIBCXX_3.4.5

Lines 1965-1970 GLIBCXX_3.4.23 { Link Here

(-)a/libstdc++-v3/config/abi/pre/gnu.ver (+3 lines)
1965	_ZNSt13__future_base13_State_baseV211_Make_ready6_M_setEv;	1965	_ZNSt13__future_base13_State_baseV211_Make_ready6_M_setEv;
1966	#endif	1966	#endif
1967		1967
		1968	# std::random_device::_M_getentropy() const
		1969	_ZNKSt13random_device13_M_getentropyEv;
		1970
1968	} GLIBCXX_3.4.22;	1971	} GLIBCXX_3.4.22;
1969		1972
1970	# Symbols in the support library (libsupc++) have their own tag.	1973	# Symbols in the support library (libsupc++) have their own tag.

Lines 18391-18397 else Link Here

(-)a/libstdc++-v3/configure (-2 / +2 lines)
18391	cat confdefs.h - <<_ACEOF >conftest.$ac_ext	18391	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
18392	/* end confdefs.h. */	18392	/* end confdefs.h. */
18393	#define _GLIBCXX_INCLUDE_NEXT_C_HEADERS	18393	#define _GLIBCXX_INCLUDE_NEXT_C_HEADERS
18394	#include <math.h>	18394	#include <math.h>
18395	#undef isnan	18395	#undef isnan
18396	namespace std {	18396	namespace std {
18397	using ::isnan;	18397	using ::isnan;
Lines 21795-21801 for ac_header in endian.h execinfo.h float.h fp.h ieeefp.h inttypes.h \ Link Here
21795	locale.h machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \	21795	locale.h machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \
21796	strings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \	21796	strings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \
21797	sys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \	21797	sys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \
21798	wchar.h wctype.h	21798	wchar.h wctype.h linux/random.h
21799	do :	21799	do :
21800	as_ac_Header=`$as_echo "ac_cv_header_$ac_header" \| $as_tr_sh`	21800	as_ac_Header=`$as_echo "ac_cv_header_$ac_header" \| $as_tr_sh`
21801	ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"	21801	ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"

Lines 237-243 AC_CHECK_HEADERS([endian.h execinfo.h float.h fp.h ieeefp.h inttypes.h \ Link Here

(-)a/libstdc++-v3/configure.ac (-1 / +1 lines)
237	locale.h machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \	237	locale.h machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \
238	strings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \	238	strings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \
239	sys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \	239	sys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \
240	wchar.h wctype.h])	240	wchar.h wctype.h linux/random.h])
241		241
242	# Only do link tests if native. Else, hardcode.	242	# Only do link tests if native. Else, hardcode.
243	if $GLIBCXX_IS_NATIVE; then	243	if $GLIBCXX_IS_NATIVE; then

Lines 1603-1609 _GLIBCXX_BEGIN_NAMESPACE_VERSION Link Here

(-)a/libstdc++-v3/include/bits/random.h (-1 / +8 lines)
1603		1603
1604	double	1604	double
1605	entropy() const noexcept	1605	entropy() const noexcept
1606	{ return 0.0; }	1606	{
		1607	#ifdef _GLIBCXX_USE_RANDOM_TR1
		1608	return this->_M_getentropy();
		1609	#else
		1610	return 0.0;
		1611	#endif
		1612	}
1607		1613
1608	result_type	1614	result_type
1609	operator()()	1615	operator()()
Lines 1627-1632 _GLIBCXX_BEGIN_NAMESPACE_VERSION Link Here
1627		1633
1628	result_type _M_getval();	1634	result_type _M_getval();
1629	result_type _M_getval_pretr1();	1635	result_type _M_getval_pretr1();
		1636	double _M_getentropy() const noexcept;
1630		1637
1631	union	1638	union
1632	{	1639	{

Lines 38-43 Link Here

(-)a/libstdc++-v3/src/c++11/random.cc (-1 / +36 lines)
38	# include <unistd.h>	38	# include <unistd.h>
39	#endif	39	#endif
40		40
		41	#ifdef _GLIBCXX_HAVE_SYS_IOCTL_H
		42	# include <sys/ioctl.h>
		43	#endif
		44
		45	#ifdef _GLIBCXX_HAVE_LINUX_RANDOM_H
		46	# include <linux/random.h>
		47	#endif
		48
41	namespace std _GLIBCXX_VISIBILITY(default)	49	namespace std _GLIBCXX_VISIBILITY(default)
42	{	50	{
43	namespace	51	namespace
Lines 161-166 namespace std _GLIBCXX_VISIBILITY(default) Link Here
161	return _M_mt();	169	return _M_mt();
162	}	170	}
163		171
		172	double
		173	random_device::_M_getentropy() const noexcept
		174	{
		175	#if defined _GLIBCXX_HAVE_SYS_IOCTL_H && \
		176	defined _GLIBCXX_HAVE_LINUX_RANDOM_H
		177	if (!_M_file)
		178	return 0.0;
		179
		180	int fd = fileno(static_cast<FILE *>(_M_file));
		181	if (fd < 0)
		182	return 0.0;
		183
		184	int ent;
		185	if (ioctl(fd, RNDGETENTCNT, &ent) < 0)
		186	return 0.0;
		187
		188	if (ent < 0)
		189	return 0.0;
		190
		191	if (static_cast<unsigned>(ent) > sizeof(result_type) * 8)
		192	return static_cast<double>(sizeof(result_type) * 8);
		193
		194	return static_cast<double>(ent);
		195	#else
		196	return 0.0;
		197	#endif
		198	}
		199
164	template class mersenne_twister_engine<	200	template class mersenne_twister_engine<
165	uint_fast32_t,	201	uint_fast32_t,
166	32, 624, 397, 31,	202	32, 624, 397, 31,
167	-

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