git
/
gcc
mirror of git://gcc.gnu.org/git/gcc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
166,349 Commits 77 Branches 206 Tags 2.3 GiB
Commit Graph

173 Commits

Author SHA1 Message Date
Jonathan Wakely da29d2a36e PR libstdc++/67843 set shared_ptr lock policy at build-time 
This resolves a longstanding issue where the lock policy for shared_ptr
reference counting depends on compilation options when the header is
included, so that different -march options can cause ABI changes. For
example, objects compiled with -march=armv7 will use atomics to
synchronize reference counts, and objects compiled with -march=armv5t
will use a mutex. That means the shared_ptr control block will have a
different layout in different objects, causing ODR violations and
undefined behaviour. This was the root cause of PR libstdc++/42734 as
well as PR libstdc++/67843.

The solution is to decide on the lock policy at build time, when
libstdc++ is configured. The configure script checks for the
availability of the necessary atomic built-ins for the target and fixes
that choice permanently. Different -march flags used to compile user
code will not cause changes to the lock policy. This results in an ABI
change for certain compilations, but only where there was already an ABI
incompatibility between the libstdc++.so library and objects built with
an incompatible -march option. In general, this means a more stable ABI
that isn't silently altered when -march flags make addition atomic ops
available.

To force a target to use "atomic" or "mutex" the new configure option
--with-libstdcxx-lock-policy can be used.

In order to turn ODR violations into linker errors, the uses of
shared_ptr in filesystem directory iterators have been replaced
with __shared_ptr, and explicit instantiations are declared. This
ensures that object files using those types cannot link to libstdc++
libs unless they use the same lock policy.

	PR libstdc++/67843
	* acinclude.m4 (GLIBCXX_ENABLE_LOCK_POLICY): Add new macro
	that defines _GLIBCXX_HAVE_ATOMIC_LOCK_POLICY.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Use GLIBCXX_ENABLE_LOCK_POLICY.
	* doc/xml/manual/configure.xml: Document new configure option.
	* include/bits/fs_dir.h (directory_iterator): Use __shared_ptr
	instead of shared_ptr.
	(recursive_directory_iterator): Likewise.
	(__shared_ptr<_Dir>): Add explicit instantiation declaration.
	(__shared_ptr<recursive_directory_iterator::_Dir_stack>): Likewise.
	* include/bits/shared_ptr_base.h (__allocate_shared, __make_shared):
	Add default template argument for _Lock_policy template parameter.
	* include/ext/concurrence.h (__default_lock_policy): Check macro
	_GLIBCXX_HAVE_ATOMIC_LOCK_POLICY instead of checking if the current
	target supports the builtins for compare-and-swap.
	* src/filesystem/std-dir.cc (__shared_ptr<_Dir>): Add explicit
	instantiation definition.
	(__shared_ptr<recursive_directory_iterator::_Dir_stack>): Likewise.
	(directory_iterator, recursive_directory_iterator): Use __make_shared
	instead of make_shared.

From-SVN: r266533
 2018-11-27 23:25:56 +00:00
Joseph Myers 22e0527251 Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 
This patch updates GCC to use autoconf 2.69 and automake 1.15.1.
(That's not the latest automake version, but it's the one used by
binutils-gdb, with which consistency is desirable, and in any case
seems a useful incremental update that should make a future update to
1.16.1 easier.)

The changes are generally similar to the binutils-gdb ones, and are
copied from there where shared files and directories are involved
(there are some further changes to such shared directories, however,
which I'd expect to apply to binutils-gdb once this patch is in GCC).
Largely, obsolete AC_PREREQ calls are removed, while many
AC_LANG_SOURCE calls are added to avoid warnings from aclocal and
autoconf.  Multilib support is no longer included in core automake,
meaning that multilib.am needs copying from automake's contrib
directory into the GCC source tree.  Autoconf 2.69 has Go support, so
local copies of that support are removed.  I hope the D support will
soon be submitted to upstream autoconf so the local copy of that can
be removed in a future update.  Changes to how automake generates
runtest calls mean quotes are removed from RUNTEST definitions in five
lib*/testsuite/Makefile.am files (libatomic, libgomp, libitm,
libphobos, libvtv; some others have RUNTEST definitions without
quotes, which are still OK); libgo and libphobos also get
-Wno-override added to AM_INIT_AUTOMAKE so those overrides of RUNTEST
do not generate automake warnings.

Note that the regeneration did not include regeneration of
fixincludes/config.h.in (attempting such regeneration resulted in all
the USED_FOR_TARGET conditionals disappearing; and I don't see
anything in the fixincludes/ directory that would result in such
conditionals being generated, unlike in the gcc/ directory).  Also
note that libvtv/testsuite/other-tests/Makefile.in was not
regenerated; that directory is not listed as a subdirectory for which
Makefile.in gets regenerated by calling "automake" in libvtv/, so I'm
not sure how it's meant to be regenerated.

While I mostly fixed warnings should running aclocal / automake /
autoconf, there were various such warnings from automake in the
libgfortran, libgo, libgomp, liboffloadmic, libsanitizer, libphobos
directories that I did not fix, preferring to leave those to the
relevant subsystem maintainers.  Specifically, most of those warnings
were of the following form (example from libgfortran):

Makefile.am:48: warning: source file 'caf/single.c' is in a subdirectory,
Makefile.am:48: but option 'subdir-objects' is disabled
automake: warning: possible forward-incompatibility.
automake: At least a source file is in a subdirectory, but the 'subdir-objects'
automake: automake option hasn't been enabled.  For now, the corresponding output
automake: object file(s) will be placed in the top-level directory.  However,
automake: this behaviour will change in future Automake versions: they
will
automake: unconditionally cause object files to be placed in the same subdirectory
automake: of the corresponding sources.
automake: You are advised to start using 'subdir-objects' option throughout your
automake: project, to avoid future incompatibilities.

I think it's best for the relevant maintainers to add subdir-objects
and do any other associated Makefile.am changes needed.  In some cases
the paths in the warnings involved ../; I don't know if that adds any
extra complications to the use of subdir-objects.

I've tested this with native, cross and Canadian cross builds.  The
risk of any OS-specific issues should I hope be rather lower than if a
libtool upgrade were included (we *should* do such an upgrade at some
point, but it's more complicated - it involves identifying all our
local libtool changes to see if any aren't included in the upstream
version we update to, and reverting an upstream libtool patch that's
inappropriate for use in GCC); I think it would be better to get this
update into GCC so that people can test in different configurations
and we can fix any issues found, rather than to try to get more and
more testing done before it goes in.

top level:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* multilib.am: New file.  From automake.

	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* libtool.m4: Use AC_LANG_SOURCE.
	* configure.ac: Remove AC_PREREQ, use AC_LANG_SOURCE.
	* ar-lib: New file.
	* test-driver: New file.
	* configure: Re-generate.

config:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* math.m4, tls.m4: Use AC_LANG_SOURCE.

	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* override.m4 (_GCC_AUTOCONF_VERSION): Bump from 2.64 to 2.69.

fixincludes:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* aclocal.m4, configure: Regenerate.

gcc:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.  Use single
	line for second argument of AC_DEFINE_UNQUOTED.
	* doc/install.texi (Tools/packages necessary for modifying GCC):
	Update to autoconf 2.69 and automake 1.15.1.
	* aclocal.m4, config.in, configure: Regenerate.

gnattools:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* configure: Regenerate.

gotools:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* config/go.m4: Remove file.
	* Makefile.am (ACLOCAL_AMFLAGS): Do not use -I ./config.
	* configure.ac:  Remove AC_PREREQ.  Do not include config/go.m4.
	* Makefile.in, aclocal.m4, configure: Regenerate.

intl:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* configure.ac: Add AC_USE_SYSTEM_EXTENSIONS, remove AC_PREREQ.
	* configure: Re-generate.
	* config.h.in: Re-generate.
	* aclocal.m4: Re-generate.

libada:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* configure: Regenerate.

libatomic:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* acinclude.m4: Use AC_LANG_SOURCE.
	* configure.ac: Remove AC_PREREQ.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

libbacktrace:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.

libcc1:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure: Regenerate.

libcpp:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* aclocal.m4, config.in, configure: Regenerate.

libdecnumber:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* configure.ac: Remove AC_PREREQ.
	* configure: Re-generate.
	* aclocal.m4.

libffi:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	(AUTOMAKE_OPTIONS): Add info-in-builddir.
	(CLEANFILES): Remove doc/libffi.info.
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure, fficonfig.h.in,
	include/Makefile.in, man/Makefile.in, testsuite/Makefile.in:
	Regenerate.

libgcc:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* configure: Regenerate.

libgfortran:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.

libgo [logically part of this change but omitted from the commit]:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* config/go.m4: Remove file.
	* config/libtool.m4: Use AC_LANG_SOURCE.
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.  Use
	-Wno-override in AM_INIT_AUTOMAKE call.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

libgomp:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am
	(AUTOMAKE_OPTIONS): Add info-in-builddir.
	(CLEANFILES): Remove libgomp.info.
	* configure.ac: Remove AC_PREREQ.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

libhsail-rt:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure: Regenerate.

libiberty:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* configure.ac: Remove AC_PREREQ.
	* configure: Re-generate.
	* config.in: Re-generate.

libitm:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	(AUTOMAKE_OPTIONS): Add info-in-builddir.
	(CLEANFILES): Remove libitm.info.
	* configure.ac: Remove AC_PREREQ.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

libobjc:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* aclocal.m4, config.h.in, configure: Regenerate.

liboffloadmic:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.
	* plugin/Makefile.am: Include multilib.am.
	* plugin/configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure, plugin/Makefile.in,
	plugin/aclocal.m4, plugin/configure: Regenerate.

libphobos:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.  Use -Wno-override in
	AM_INIT_AUTOMAKE call.
	* m4/autoconf.m4: Add extra argument to AC_LANG_DEFINE call.
	* m4/druntime/os.m4: Use AC_LANG_SOURCE.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, libdruntime/Makefile.in,
	src/Makefile.in, testsuite/Makefile.in: Regenerate.

libquadmath:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	(AUTOMAKE_OPTIONS): Remove 1.8.  Add info-in-builddir.
	(all-local): Define outside conditional code.
	(CLEANFILES): Remove libquadmath.info.
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.

libsanitizer:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* Makefile.in, aclocal.m4, asan/Makefile.in, configure,
	interception/Makefile.in, libbacktrace/Makefile.in,
	lsan/Makefile.in, sanitizer_common/Makefile.in, tsan/Makefile.in,
	ubsan/Makefile.in: Regenerate.

libssp:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	(AUTOMAKE_OPTIONS): Remove 1.9.5.
	* configure.ac: Remove AC_PREREQ.  Quote argument to
	AC_RUN_IFELSE.
	* Makefile.in, aclocal.m4, configure: Regenerate.

libstdc++-v3:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure, doc/Makefile.in,
	include/Makefile.in, libsupc++/Makefile.in, po/Makefile.in,
	python/Makefile.in, src/Makefile.in, src/c++11/Makefile.in,
	src/c++17/Makefile.in, src/c++98/Makefile.in,
	src/filesystem/Makefile.in, testsuite/Makefile.in: Regenerate.

libvtv:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

lto-plugin:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.

zlib:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.

	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* configure.ac: Modernize AC_INIT call, remove AC_PREREQ.
	* Makefile.am (AUTOMAKE_OPTIONS): Remove 1.8, cygnus, add foreign.
	* Makefile.in: Re-generate.
	* aclocal.m4: Re-generate.
	* configure: Re-generate.

From-SVN: r265695
 2018-10-31 17:03:16 +00:00
Jonathan Wakely 82a0f2fd10 Use autoconf to check for features needed by Networking TS 
* config.h.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Check for headers used by Networking TS.
	* include/experimental/executor: Include <condition_variable>
	instead of <mutex>.
	* include/experimental/internet: Use autoconf macros for available
	headers.  Include <sys/socket.h> for.  Remove <cstring> and use
	__builtin_memcpy and __builtin_strchr.
	(resolver_errc) [!_GLIBCXX_HAVE_NETDB_H]: Do not define.
	(address_v4::to_string, address_v6::to_string)
	[!_GLIBCXX_HAVE_ARPA_INET_H]: Likewise.
	(basic_resolver_results) [!_GLIBCXX_HAVE_NETDB_H]: Make private
	constructors report errors.
	[!_GLIBCXX_HAVE_NETINET_TCP_H] (tcp::no_delay): Do not define.
	* include/experimental/io_context: Likewise.
	* include/experimental/socket: Likewise.
	[!_GLIBCXX_HAVE_SYS_SOCKET_H, !_GLIBCXX_HAVE_POLL_H] (socket_base): Do
	not define nested types when relevant header not available.
	(__socket_impl::native_non_blocking) [!_GLIBCXX_HAVE_FCNTL_H]: Report
	an error.
	(__basic_socket_impl::open, __basic_socket_impl::local_endpoint)
	(__basic_socket_impl::bind) [!_GLIBCXX_HAVE_SYS_SOCKET_H]: Likewise.
	(__basic_socket_impl::io_control) [!_GLIBCXX_HAVE_SYS_IOCTL_H]:
	Likewise.
	(basic_socket::at_mark, basic_socket::shutdown)
	(basic_socket::remote_endpoint, basic_socket::connect)
	(basic_socket::async_connect) [!_GLIBCXX_HAVE_SYS_SOCKET_H]: Likewise.
	(basic_socket::available) [_GLIBCXX_HAVE_SYS_IOCTL_H]: Check macro
	for <sys/ioctl.h> availability.
	(basic_socket::wait) [!_GLIBCXX_HAVE_POLL_H]: Likewise.
	(basic_datagram_socket::receive, basic_datagram_socket::async_receive)
	(basic_datagram_socket::receive_from)
	(basic_datagram_socket::async_receive_from)
	(basic_datagram_socket::send, basic_datagram_socket::async_send)
	(basic_datagram_socket::send_to, basic_datagram_socket::async_send_to)
	[!_GLIBCXX_HAVE_SYS_SOCKET_H]: Likewise.
	(basic_stream_socket::receive, basic_stream_socket::async_receive)
	(basic_stream_socket::send, basic_stream_socket::async_send)
	[!_GLIBCXX_HAVE_SYS_SOCKET_H]: Likewise.
	(basic_socket_acceptor::listen, basic_socket_acceptor::accept)
	(basic_socket_acceptor::async_accept) [!_GLIBCXX_HAVE_SYS_SOCKET_H]:
	Likewise.
	(basic_socket_acceptor::wait) [!_GLIBCXX_HAVE_POLL_H]: Likewise.

From-SVN: r265203
 2018-10-16 17:12:32 +01:00
Jonathan Wakely 5ae2c32a8a Define _GLIBCXX_USE_DEV_RANDOM as replacement for _GLIBCXX_USE_RANDOM_TR1 
Define and use a new macro with a more descriptive name. Only use the
old macro in <tr1/random.h>.

	* acinclude.m4 (GLIBCXX_CHECK_RANDOM_TR1): Replace with ...
	(GLIBCXX_CHECK_DEV_RANDOM): New macro with more descriptive name.
	Define _GLIBCXX_USE_DEV_RANDOM as well as _GLIBCXX_USE_RANDOM_TR1.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Use GLIBCXX_CHECK_DEV_RANDOM instead of
	GLIBCXX_CHECK_RANDOM_TR1.
	crossconfig.m4: Likewise.
	* include/bits/random.h (random_device): Use _GLIBCXX_USE_DEV_RANDOM
	instead of _GLIBCXX_USE_RANDOM_TR1.
	* testsuite/26_numerics/random/random_device/cons/token.cc: Likewise.

From-SVN: r265197
 2018-10-16 15:49:29 +01:00
Jonathan Wakely 9db03bee15 Revert "libstdc++-v3: Have aligned_alloc() on Newlib" 
This reverts commit r263461 / 2e920cd849
because aligned_alloc is not defined for baremetal newlib targets, see
https://gcc.gnu.org/ml/libstdc++/2018-08/msg00065.html

Revert
2018-08-10  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	PR target/85904
	* configure.ac: Define HAVE_ALIGNED_ALLOC if building for
	Newlib.
	* configure: Regenerate.

From-SVN: r263513
 2018-08-13 19:54:21 +01:00
Sebastian Huber ee6ad3e788 libstdc++-v3: Have aligned_alloc() on Newlib 
While building for Newlib, some configure checks must be hard coded.
The aligned_alloc() is supported since 2015 in Newlib.

libstdc++-v3/

	PR target/85904
	* configure.ac: Define HAVE_ALIGNED_ALLOC if building for
	Newlib.
	* configure: Regenerate.

From-SVN: r263461
 2018-08-10 06:27:35 +00:00
Jonathan Wakely 9fbd2e55a1 Add -D_GLIBCXX_ASSERTIONS to DEBUG_FLAGS 
Enable assertions in the extra debug library built when
--enable-libstdcxx-debug is used. Replace some Debug Mode assertions
in src/c++11/futex.cc with __glibcxx_assert, because the library will
never be built with Debug Mode.

	* configure: Regenerate.
	* configure.ac: Add -D_GLIBCXX_ASSERTIONS to default DEBUG_FLAGS.
	* src/c++11/futex.cc: Use __glibcxx_assert instead of
	_GLIBCXX_DEBUG_ASSERT.

From-SVN: r263235
 2018-08-01 20:52:46 +01:00
Jonathan Wakely c3be340eb6 PR libstdc++/86450 use -Wabi=2 and simplify -Werror use 
Use -Wabi=2 to fix warnings about -Wabi having no effect on its own.
This requires suppressing two warnings in src/c++11/debug.cc which do
not affect the library ABI.

Previously libstdc++ defaulted to --enable-werror but the -Werror flag
was not actually added unless --enable-maintainer-mode was used. This is
not documented and not the expected behaviour. This removes any special
treatment for maintainer-mode, makes -Werror depend directly on
--enable-werror, and changes the default to --enable-werror=no.

	PR libstdc++/86450
	* acinclude.m4 (GLIBCXX_CHECK_COMPILER_FEATURES): Don't define WERROR.
	(GLIBCXX_EXPORT_FLAGS): Use -Wabi=2 instead of -Wabi.
	* configure: Regenerate.
	* configure.ac: Change GLIBCXX_ENABLE_WERROR default to "no".
	* doc/Makefile.in: Regenerate.
	* fragment.am: Set WERROR_FLAG to -Werror instead of $(WERROR).
	* include/Makefile.in: Regenerate.
	* libsupc++/Makefile.in: Regenerate.
	* po/Makefile.in: Regenerate.
	* python/Makefile.in: Regenerate.
	* src/Makefile.in: Regenerate.
	* src/c++11/Makefile.in: Regenerate.
	* src/c++11/debug.cc: Use diagnostic pragmas to suppress warnings
	from -Wabi=2 that don't affect exported symbols.
	* src/c++98/Makefile.in: Regenerate.
	* src/filesystem/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.

From-SVN: r262824
 2018-07-17 14:18:47 +01:00
Jonathan Wakely 7314856c61 Fix bootstrap failure for bare metal due to autoconf link tests 
The AC_CHECK_FUNCS tests cause the build to fail for bare metal cross
compilers, where link tests are not allowed. Replace them with
GCC_TRY_COMPILE_OR_LINK tests instead. Skip all the Filesystem
dependency checks if not building the filesystem library.

	* acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Only check when
	enable_libstdcxx_filesystem_ts = yes. Check for link, readlink and
	symlink.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Remove AC_CHECK_FUNCS for link, readlink and symlink.

From-SVN: r261704
 2018-06-18 17:01:24 +01:00
Jonathan Wakely 9534a5e62d PR libstdc++/78870 support std::filesystem on Windows 
PR libstdc++/78870 support std::filesystem on Windows
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Check for link, readlink and symlink.
	* include/bits/fs_path.h (path::operator/=(const path&)): Move
	definition out of class body.
	(path::is_absolute(), path::_M_append(path)): Likewise.
	(operator<<(basic_ostream, const path&)): Use std::quoted directly.
	(operator>>(basic_istream, path&)): Likewise.
	(u8path): Reorder definitions and fix Windows implementation.
	(path::is_absolute()): Define inline and fix for Windows.
	[!_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::operator/=(const path&)):
	Define POSIX version inline.
	(path::_M_append(path)): Define inline.
	* include/experimental/bits/fs_path.h (path::is_absolute()): Move
	definition out of class body.
	(operator<<(basic_ostream, const path&)): Fix type of delimiter and
	escape characters.
	(operator>>(basic_istream, path&)): Likewise.
	(path::is_absolute()): Define inline and fix for Windows.
	* src/filesystem/dir-common.h (__gnu_posix): New namespace.
	(__gnu_posix::char_type, __gnu_posix::DIR, __gnu_posix::dirent)
	(__gnu_posix::opendir, __gnu_posix::readdir, __gnu_posix::closedir):
	Define as adaptors for Windows functions/types or as
	using-declarations for POSIX functions/types.
	(_Dir_base, get_file_type): Qualify names to use declarations from
	__gnu_posix namespace.
	(_Dir_base::is_dor_or_dotdot): New helper functions.
	* src/filesystem/dir.cc (_Dir, recursive_directory_iterator): Qualify
	names to use declarations from __gnu_posix namespace.
	* src/filesystem/ops-common.h (__gnu_posix): New nested namespace.
	(__gnu_posix::open, __gnu_posix::close, __gnu_posix::stat_type)
	(__gnu_posix::stat, __gnu_posix::lstat, __gnu_posix::mode_t)
	(__gnu_posix::chmod, __gnu_posix::mkdir, __gnu_posix::getcwd)
	(__gnu_posix::chdir, __gnu_posix::utimbuf, __gnu_posix::utime)
	(__gnu_posix::rename, __gnu_posix::truncate, __gnu_posix::char_type):
	Define as adaptors for Windows functions/types or as
	using-declarations for POSIX functions/types.
	(stat_type, do_copy_file): Qualify names to use declarations from
	__gnu_posix namespace.
	(do_space): Declare new function.
	(make_file_type): Only use S_ISLNK if defined.
	* src/filesystem/ops.cc (char_ptr, filesystem::canonical): Use
	path::value_type not char.
	(filesystem::copy, create_dir, filesystem::create_directory): Qualify
	names to use declarations from __gnu_posix namespace.
	(filesystem::create_hard_link): Check HAVE_LINK autoconf macro and
	add implementation for Windows.
	(filesystem::create_symlink): Check HAVE_SYMLINK autoconf macro.
	(filesystem::current_path(error_code&)): Use __gnu_posix::getcwd.
	[!_PC_PATH_MAX]: Don't use pathconf.
	[PATH_MAX]: Use if defined.
	(filesystem::current_path(const path&, error_code&))
	(filesystem::equivalent, do_stat, filesystem::hard_link_count)
	(filesystem::last_write_time, filesystem::permissions): Use names
	from __gnu_posix.
	(filesystem::read_symlink): Check HAVE_READLINK autoconf macro.
	(filesystem::remove) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Add
	implementation for Windows.
	(filesystem::rename, filesystem::resize_file): Use names from
	__gnu_posix.
	(filesystem::space): Use do_space.
	[_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Get absolute path to directory.
	(filesystem::status, filesystem::symlink_status): Use names from
	__gnu_posix.
	(filesystem::temp_directory_path): Add implementation for Windows.
	* src/filesystem/path.cc (dot): Define constant.
	(path::replace_extension): Use dot.
	(path::_M_find_extension): Likewise. Use path::string_type not
	std::string.
	(path::_M_split_cmpts): Use dot.
	(filesystem_error::_M_get_what): Use u8string() not native().
	* src/filesystem/std-dir.cc (_Dir, recursive_directory_iterator):
	Qualify names to use declarations from __gnu_posix namespace.
	* src/filesystem/std-ops.cc (filesystem::absolute(const path&)): Use
	correct error_code.
	(filesystem::absolute(const path&, error_code&)): Add implementation
	for Windows.
	(char_ptr, filesystem::canonical): Use path::value_type not char.
	(do_copy_file): Use names from __gnu_posix.
	[_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Do not use fchmod, fchmodat or
	sendfile.
	(filesystem::copy, create_dir, filesystem::create_directory): Qualify
	names to use declarations from __gnu_posix namespace.
	(filesystem::create_hard_link): Check HAVE_LINK autoconf macro and
	add implementation for Windows.
	(filesystem::create_symlink): Check HAVE_SYMLINK autoconf macro.
	(filesystem::current_path(error_code&)): Use __gnu_posix::getcwd.
	[!_PC_PATH_MAX]: Don't use pathconf.
	[PATH_MAX]: Use if defined.
	(filesystem::current_path(const path&, error_code&))
	(filesystem::equivalent, do_stat, filesystem::hard_link_count)
	(filesystem::last_write_time, filesystem::permissions): Use names
	from __gnu_posix.
	(filesystem::read_symlink): Check HAVE_READLINK autoconf macro.
	(filesystem::remove) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Add
	implementation for Windows.
	(filesystem::rename, filesystem::resize_file): Use names from
	__gnu_posix.
	(do_space): Define.
	(filesystem::space): Use do_space.
	(filesystem::status, filesystem::symlink_status): Use names from
	__gnu_posix.
	(filesystem::temp_directory_path): Add implementation for Windows.
	* src/filesystem/std-path.cc
	[_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::operator/=(const path&)):
	Define for Windows.
	(dot): Define constant.
	(path::replace_extension, is_dot): Use dot.
	(path::lexically_normal): Check _M_type instead of calling
	non-existent function.
	(path::_M_find_extension): Use dot. Use path::string_type not
	std::string.
	(path::_M_split_cmpts): Use dot.
	(filesystem_error::_M_get_what): Use u8string() not native().
	* testsuite/27_io/filesystem/iterators/directory_iterator.cc: Do not
	use symlinks.
	* testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
	Likewise.
	* testsuite/27_io/filesystem/operations/absolute.cc: Use
	__gnu_test::root_path() instead of "/" and add Windows-specific tests.
	* testsuite/27_io/filesystem/operations/canonical.cc: Use
	path::string() to get narrow string, not path::native().
	* testsuite/27_io/filesystem/operations/copy.cc: Construct fstreams
	with std::filesystem::path not std::basic_string.
	* testsuite/27_io/filesystem/operations/copy_file.cc: Likewise.
	* testsuite/27_io/filesystem/operations/exists.cc: Use
	__gnu_test::root_path() instead of "/".
	* testsuite/27_io/filesystem/operations/is_empty.cc: Construct
	fstreams with std::filesystem::path not std::basic_string.
	* testsuite/27_io/filesystem/operations/last_write_time.cc: Use
	path::string() to get narrow string.
	* testsuite/27_io/filesystem/operations/space.cc: Check results for
	errors, expect sensible values otherwise.
	* testsuite/27_io/filesystem/operations/temp_directory_path.cc: Add
	helpers for adjusting the environment on Windows.
	* testsuite/27_io/filesystem/path/append/path.cc: Test
	Windows-specific behaviour.
	* testsuite/27_io/filesystem/path/construct/format.cc: Fix creation
	of path::string_type objects.
	* testsuite/27_io/filesystem/path/construct/locale.cc: Compare native
	string to wide string on Windows.
	* testsuite/27_io/filesystem/path/decompose/root_directory.cc: Allow
	for backslash as root-directory.
	* testsuite/27_io/filesystem/path/decompose/stem.cc: Use
	path::string() to get narrow string.
	* testsuite/27_io/filesystem/path/itr/traversal.cc: Test Windows-style
	paths.
	* testsuite/27_io/filesystem/path/native/string.cc: Use string_type
	not std::string.
	* testsuite/27_io/filesystem/path/query/is_absolute.cc: Adjust for
	different definintion of absolute paths on Windows.
	* testsuite/experimental/filesystem/iterators/directory_iterator.cc:
	Do not use symlinks.
	* testsuite/experimental/filesystem/operations/absolute.cc: Test
	Windows behaviour.
	* testsuite/experimental/filesystem/operations/copy.cc: Construct
	fstreams with NTCTS not std::basic_string.
	* testsuite/experimental/filesystem/operations/copy_file.cc: Likewise.
	* testsuite/experimental/filesystem/operations/exists.cc: Use
	__gnu_test::root_path() instead of "/".
	* testsuite/experimental/filesystem/operations/is_empty.cc: Construct
	fstreams with NTCTS not std::basic_string.
	* testsuite/experimental/filesystem/operations/last_write_time.cc:
	Use path::string() to get narrow string.
	* testsuite/experimental/filesystem/operations/space.cc: Use
	__gnu_test::root_path() instead of "/".
	* testsuite/experimental/filesystem/operations/temp_directory_path.cc:
	Add helpers for adjusting the environment on Windows.
	* testsuite/experimental/filesystem/path/append/path.cc: Use
	path::string() to get narrow strings for comparisons.
	* testsuite/experimental/filesystem/path/concat/path.cc: Likewise.
	* testsuite/experimental/filesystem/path/decompose/root_directory.cc:
	Likewise.
	* testsuite/experimental/filesystem/path/decompose/stem.cc: Likewise.
	* testsuite/experimental/filesystem/path/native/string.cc: Use
	string_type not std::string.
	* testsuite/experimental/filesystem/path/query/is_absolute.cc:
	Adjust for different definintion of absolute paths on Windows.
	* testsuite/util/testsuite_fs.h (__gnu_test::root_path()): New
	function.
	(__gnu_test::scoped_file): Construct fstreams with NTCTS not
	std::basic_string.

From-SVN: r261034
 2018-05-31 20:20:24 +01:00
Jonathan Wakely b02923592a Add support for opening file streams from wide character strings 
C++17 added new overloads to <fstream> class templates to support
opening files from wide character strings "on systems where
filesystem::path::value_type is not char". This patch adds those
overloads conditional on _wfopen being available, and enables them for
pre-C++17 modes as well.

	Add support for opening file streams from wide character strings.
	* config/io/basic_file_stdio.cc [_GLIBCXX_HAVE__WFOPEN]
	(__basic_file<char>::open(const wchar_t*, ios_base::openmode)):
	Define new overload.
	* config/io/basic_file_stdio.h [_GLIBCXX_HAVE__WFOPEN]
	(__basic_file<char>::open(const wchar_t*, ios_base::openmode)):
	Declare new overload.
	* configure.ac: Check for _wfopen.
	* crossconfig.m4: Likewise.
	* configure: Regenerate.
	* config.h.in: Regenerate.
	* include/bits/fstream.tcc [_GLIBCXX_HAVE__WFOPEN]
	(basic_filebuf<C,T>::open(const wchar_t*, ios_base::openmode)):
	Define new overload.
	* include/std/fstream [_GLIBCXX_HAVE__WFOPEN]
	(basic_filebuf<C,T>::open(const wchar_t*, ios_base::openmode)):
	Declare new overload.
	[_GLIBCXX_HAVE__WFOPEN]
	(basic_ifstream<C,T>::basic_ifstream(const wchar_t*, openmode))
	(basic_ifstream<C,T>::basic_open(const wchar_t*, openmode))
	(basic_ofstream<C,T>::basic_ifstream(const wchar_t*, openmode))
	(basic_ofstream<C,T>::basic_open(const wchar_t*, openmode))
	(basic_fstream<C,T>::basic_ifstream(const wchar_t*, openmode))
	(basic_fstream<C,T>::basic_open(const wchar_t*, openmode)): Define
	new overloads.
	* testsuite/27_io/basic_filebuf/open/wchar_t/1.cc: New.
	* testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc: New.
	* testsuite/27_io/basic_ifstream/open/wchar_t/1.cc: New.
	* testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc: New.
	* testsuite/27_io/basic_ofstream/open/wchar_t/1.cc: New.
	* testsuite/27_io/basic_fstream/cons/wchar_t/1.cc: New.
	* testsuite/27_io/basic_fstream/open/wchar_t/1.cc: New.

From-SVN: r260479
 2018-05-21 18:18:35 +01:00
Jonathan Wakely 51f174c0ef PR libstdc++/81797 Add .NOTPARALLEL to include/Makefile for darwin 
PR libstdc++/81797
	* configure.ac (INCLUDE_DIR_NOTPARALLEL): Define.
	* configure: Regenerate.
	* include/Makefile.am (INCLUDE_DIR_NOTPARALLEL): Add .NOTPARALLEL when
	defined.
	* include/Makefile.in: Regenerate.

From-SVN: r257710
 2018-02-15 20:56:41 +00:00
Uros Bizjak dac867c90a configure.ac (AC_CHECK_HEADERS): Add linux/types.h. 
* configure.ac (AC_CHECK_HEADERS): Add linux/types.h.  Conditionally
	include linux/types.h when checking linux/random.h header.
	* config.h.in: Regenerate.
	* configure: Ditto.
	* src/c++11/random.cc: Conditionally include linux/types.h.

From-SVN: r256859
 2018-01-18 20:52:16 +01:00
Igor Tsimbalist 36101de964 Enable building libstdc++-v3 with Intel CET 
libstdc++-v3/
	* acinclude.m4: Add cet.m4.
	* configure.ac: Set CET_FLAGS. Update EXTRA_CFLAGS,
	EXTRA_CXX_FLAGS.
	* libsupc++/Makefile.am: Use Add EXTRA_CFLAGS.
	* Makefile.in: Regenerate.
	* configure: Likewise.
	* doc/Makefile.in: Likewise.
	* include/Makefile.in: Likewise.
	* libsupc++/Makefile.in: Likewise.
	* po/Makefile.in: Likewise.
	* python/Makefile.in: Likewise.
	* src/Makefile.in: Likewise.
	* src/c++11/Makefile.in: Likewise.
	* src/c++98/Makefile.in: Likewise.
	* src/filesystem/Makefile.in: Likewise.
	* testsuite/Makefile.in: Likewise.

From-SVN: r254895
 2017-11-17 22:28:10 +01:00
Xi Ruoyao 78aa76df40 PR libstdc++/67578 Implement non-trivial std::random_device::entropy 
2017-05-23  Xi Ruoyao  <ryxi@stu.xidian.edu.cn>
	    Jonathan Wakely  <jwakely@redhat.com>

	PR libstdc++/67578
	* acinclude.m4: Bump libtool_VERSION.
	* config/abi/pre/gnu.ver: Create GLIBCXX_3.4.24 with new symbol.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Add test for <linux/random.h>.
	* doc/xml/manual/abi.xml: Document new library version.
	* include/bits/random.h (random_device::entropy)
	[_GLIBCXX_USE_RANDOM_TR1]: Add call to new _M_getentropy member.
	(random_device::_M_getentropy): Declare.
	* src/c++11/random.cc (random_device::_M_getentropy): Define.
	* testsuite/util/testsuite_abi.cc: Add GLIBCXX_3.4.24 to known
	versions, and make it the latest version.

Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>

From-SVN: r248374
 2017-05-23 17:11:57 +01:00
Jakub Jelinek 3c36aa6ba2 re PR other/79046 (g++ -print-file-name=plugin uses full version number in path) 
PR other/79046
	* configure: Regenerated.
config/
	* acx.m4 (GCC_BASE_VER): New m4 function.
	(ACX_TOOL_DIRS): Require GCC_BASE_VER, for
	--with-gcc-major-version-only use just major number from BASE-VER.
gcc/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.in (version): Use @get_gcc_base_ver@ instead of cat to get
	version from BASE-VER file.
	(CFLAGS-gcc.o): Add -DBASEVER=$(BASEVER_s).
	(gcc.o): Depend on $(BASEVER).
	* common.opt (dumpfullversion): New option.
	* gcc.c (driver_handle_option): Handle OPT_dumpfullversion.
	* doc/invoke.texi: Document -dumpfullversion.
	* doc/install.texi: Document --with-gcc-major-version-only.
	* configure: Regenerated.
libatomic/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* testsuite/Makefile.in: Regenerated.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libgomp/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* testsuite/Makefile.in: Regenerated.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libgcc/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.in (version): Use @get_gcc_base_ver@ instead of cat to get
	version from BASE-VER file.
	* configure: Regenerated.
libssp/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
liboffloadmic/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* aclocal.m4: Include ../config/acx.m4.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libquadmath/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libmpx/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libada/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.in (version): Use @get_gcc_base_ver@ instead of cat to get
	version from BASE-VER file.
	* configure: Regenerated.
lto-plugin/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libitm/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* testsuite/Makefile.in: Regenerated.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
fixincludes/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.in (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* configure: Regenerated.
libcilkrts/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* aclocal.m4: Include ../config/acx.m4.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libcc1/
	* configure.ac: Add GCC_BASE_VER.  For --with-gcc-major-version-only
	use just major number from BASE-VER.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libobjc/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.in (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* configure: Regenerated.
libstdc++-v3/
	* configure.ac: Add GCC_BASE_VER.
	* fragment.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* po/Makefile.in: Regenerated.
	* libsupc++/Makefile.in: Regenerated.
	* testsuite/Makefile.in: Regenerated.
	* src/Makefile.in: Regenerated.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
	* include/Makefile.in: Regenerated.
	* doc/Makefile.in: Regenerated.
	* python/Makefile.in: Regenerated.
	* src/c++11/Makefile.in: Regenerated.
	* src/c++98/Makefile.in: Regenerated.
	* src/filesystem/Makefile.in: Regenerated.
libvtv/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* testsuite/Makefile.in: Regenerated.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libsanitizer/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* libbacktrace/Makefile.in: Regenerated.
	* interception/Makefile.in: Regenerated.
	* asan/Makefile.in: Regenerated.
	* ubsan/Makefile.in: Regenerated.
	* configure: Regenerated.
	* sanitizer_common/Makefile.in: Regenerated.
	* lsan/Makefile.in: Regenerated.
	* Makefile.in: Regenerated.
	* tsan/Makefile.in: Regenerated.
libgfortran/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* configure: Regenerated.
	* Makefile.in: Regenerated.

From-SVN: r244521
 2017-01-17 10:38:48 +01:00
Rainer Orth 1ec62aa9e1 Build libgo with -Wa,-nH if possible (PR go/78978) [non-libgo parts] 
libstdc++-v3:
	PR go/78978
	* acinclude.m4 (GLIBCXX_CHECK_ASSEMBLER_HWCAP): Remove.
	* configure.ac: Call GCC_CHECK_ASSEMBLER_HWCAP instead of
	GLIBCXX_CHECK_ASSEMBLER_HWCAP.
	* fragment.am (CONFIG_CXXFLAGS): Use HWCAP_CFLAGS instead of
	HWCAP_FLAGS.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* Makefile.in, doc/Makefile.in, include/Makefile.in,
	libsupc++/Makefile.in, po/Makefile.in, python/Makefile.in,
	src/Makefile.in, src/c++11/Makefile.in, src/c++98/Makefile.in,
	src/filesystem/Makefile.in, testsuite/Makefile.in: Regenerate.

	config:
	PR go/78978
	* hwcaps.m4 (GCC_CHECK_ASSEMBLER_HWCAP): New macro.

From-SVN: r244162
 2017-01-06 14:33:47 +00:00
Jonathan Wakely 2a792efe7f PR78968 add configure check for __cxa_thread_atexit in libc 
PR libstdc++/78968
	* config.h.in: Regenerate.
	* configure: Likewise.
	* configure.ac: Check for __cxa_thread_atexit.
	* libsupc++/atexit_thread.cc [_GLIBCXX_HAVE___CXA_THREAD_ATEXIT]:
	Don't define __cxa_thread_atexit if libc provides it.

From-SVN: r244057
 2017-01-04 15:41:19 +00:00
Pauli Nieminen ed3cb49703 Support exception propagation without lock-free atomic int 
2017-01-04  Pauli Nieminen  <suokkos@gmail.com>
	    Jonathan Wakely  <jwakely@redhat.com>

	PR libstdc++/64735
	* acinclude.m4 (GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER): Define.
	* config.h.in: Regenerate.
	* config/abi/pre/gnu.ver [HAVE_EXCEPTION_PTR_SINCE_GCC46]
	(GLIBCXX_3.4.15, GLIBCXX_3.4.21, CXXABI_1.3.3, CXXABI_1.3.5): Make
	exports for exception_ptr, nested_exception, and future conditional.
	[HAVE_EXCEPTION_PTR_SINCE_GCC46] (GLIBCXX_3.4.23, CXXABI_1.3.11): Add
	exports for exception_ptr, nested_exception, and future conditional.
	* configure: Regenerate.
	* configure.ac: Use GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER.
	* include/std/future: Remove check for ATOMIC_INT_LOCK_FREE
	* libsupc++/eh_atomics.h: New file for internal use only.
	(__eh_atomic_inc, __eh_atomic_dec): New.
	* libsupc++/eh_ptr.cc (exception_ptr::_M_addref)
	(exception_ptr::_M_release) (__gxx_dependent_exception_cleanup)
	(rethrow_exception): Use eh_atomics.h reference counting helpers.
	* libsupc++/eh_throw.cc (__gxx_exception_cleanup): Likewise.
	* libsupc++/eh_tm.cc (free_any_cxa_exception): Likewise.
	* libsupc++/exception: Remove check for ATOMIC_INT_LOCK_FREE.
	* libsupc++/exception_ptr.h: Likewise.
	* libsupc++/guard.cc: Include header for ATOMIC_INT_LOCK_FREE macro.
	* libsupc++/nested_exception.cc: Remove check for
	ATOMIC_INT_LOCK_FREE.
	* libsupc++/nested_exception.h: Likewise.
	* src/c++11/future.cc: Likewise.
	* testsuite/18_support/exception_ptr/*: Remove atomic builtins checks.
	* testsuite/18_support/nested_exception/*: Likewise.
	* testsuite/30_threads/async/*: Likewise.
	* testsuite/30_threads/future/*: Likewise.
	* testsuite/30_threads/headers/future/types_std_c++0x.cc: Likewise.
	* testsuite/30_threads/packaged_task/*: Likewise.
	* testsuite/30_threads/promise/*: Likewise.
	* testsuite/30_threads/shared_future/*: Likewise.

Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>

From-SVN: r244051
 2017-01-04 10:54:59 +00:00
Alan Modra 6d49b790fd Disable .gnu.attributes tags in compatibility-ldbl.o 
compatibility-ldbl.o is compiled with -mlong-double-64.  When
long double .gnu.attributes tags are checked by the linker, it
complains about the mismatch between this file and others in
libstdc++.

	* configure.ac (LONG_DOUBLE_COMPAT_FLAGS): New ACSUBST.
	* src/Makefile.am (compatibility-ldbl.o, compatibility-ldbl.lo):
	Use LONG_DOUBLE_COMPAT_FLAGS.
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* doc/Makefile.in: Regenerate.
	* include/Makefile.in: Regenerate.
	* libsupc++/Makefile.in: Regenerate.
	* po/Makefile.in: Regenerate.
	* python/Makefile.in: Regenerate.
	* src/Makefile.in: Regenerate.
	* src/c++11/Makefile.in: Regenerate.
	* src/c++98/Makefile.in: Regenerate.
	* src/filesystem/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.

From-SVN: r240602
 2016-09-29 07:33:17 +09:30
Jason Merrill 7be8d66369 * configure.ac: Define HAVE_MEMALIGN for newlib. 
From-SVN: r240435
 2016-09-23 10:34:51 -04:00
Jason Merrill af63ba4b30 Implement P0035R4, C++17 new of over-aligned types. 
gcc/cp/
	* cp-tree.h (enum cp_tree_index): Add CPTI_ALIGN_TYPE.
	(align_type_node): New macro.
	* call.c (build_operator_new_call): Handle C++17 aligned new.
	(second_parm_is_size_t, build_op_delete_call): Likewise.
	(non_placement_deallocation_fn_p): Likewise. Rename to
	usual_deallocation_fn_p.
	(aligned_allocation_fn_p, aligned_deallocation_fn_p): New.
	* decl.c (cxx_init_decl_processing): Add aligned new support.
	* init.c (type_has_new_extended_alignment): New.
	(build_new_1): Handle aligned new.
	* tree.c (vec_copy_and_insert): New.
gcc/c-family/
	* c.opt: Add -faligned-new and -Waligned-new.
	* c-common.c (max_align_t_align): Split out from...
	(cxx_fundamental_alignment_p): ...here.
	* c-common.h: Declare it.
	* c-cppbuiltin.c (c_cpp_builtins): Handle aligned new.
libstdc++-v3/
	* libsupc++/new: Declare aligned new/delete operators.
	* config/abi/pre/gnu.ver: Export them.
	* configure.ac: Check for aligned_alloc, posix_memalign, memalign,
	_aligned_malloc.
	* libsupc++/new_opa.cc: New.
	* libsupc++/new_opant.cc: New.
	* libsupc++/new_opva.cc: New.
	* libsupc++/new_opva.cc: New.
	* libsupc++/del_opa.cc: New.
	* libsupc++/del_opant.cc: New.
	* libsupc++/del_opsa.cc: New.
	* libsupc++/del_opva.cc: New.
	* libsupc++/del_opvant.cc: New.
	* libsupc++/del_opvsa.cc: New.
	* libsupc++/Makefile.am: Build them.

From-SVN: r240056
 2016-09-09 17:22:15 -04:00
Torvald Riegel a04d5fc95d libstdc++: Make certain exceptions transaction_safe. 
From-SVN: r232454
 2016-01-15 22:42:41 +00:00
Rainer Orth ef3a75060e Handle C++11 <math.h> overloads on Solaris 12 
* acinclude.m4 (GLIBCXX_CHECK_MATH11_PROTO): New test.
	* configure.ac: Use it.
	* configure: Regenerate.
	* config.h.in: Regenerate.

	* include/c_global/cmath [__cplusplus >= 201103L]
	(std::fpclassify): Wrap in !__CORRECT_ISO_CPP11_MATH_H_PROTO.
	(std::isfinite): Likewise.
	(std::isinf): Likewise.
	(std::isnan): Likewise.
	(std::isnormal): Likewise.
	(std::signbit): Likewise.
	(std::isgreater): Likewise.
	(std::isgreaterequal): Likewise.
	(std::isless): Likewise.
	(std::islessequal): Likewise.
	(std::islessgreater): Likewise.
	(std::isunordered): Likewise.
	(std::acosh): Likewise.
	(std::asinh): Likewise.
	(std::atanh): Likewise.
	(std::cbrt): Likewise.
	(std::copysign): Likewise.
	(std::erf): Likewise.
	(std::erfc): Likewise.
	(std::exp2): Likewise.
	(std::expm1): Likewise.
	(std::fdim): Likewise.
	(std::fma): Likewise.
	(std::fmax): Likewise.
	(std::fmin): Likewise.
	(std::hypot): Likewise.
	(std::ilogb): Likewise.
	(std::lgamma): Likewise.
	(std::llrint): Likewise.
	(std::llround): Likewise.
	(std::log1p): Likewise.
	(std::log2): Likewise.
	(std::logb): Likewise.
	(std::lrint): Likewise.
	(std::lround): Likewise.
	(std::nearbyint): Likewise.
	(std::nextafter): Likewise.
	(std::nexttoward): Likewise.
	(std::remainder): Likewise.
	(std::remquo): Likewise.
	(std::rint): Likewise.
	(std::round): Likewise.
	(std::scalbln): Likewise.
	(std::scalbn): Likewise.
	(std::tgamma): Likewise.
	(std::trunc): Likewise.
	* include/tr1/cmath [_GLIBCXX_USE_C99_MATH_TR1] (std::tr1::acosh):
	Wrap in !__CORRECT_ISO_CPP11_MATH_H_PROTO.
	(std::tr1::asinh): Likewise.
	(std::tr1::atanh): Likewise.
	(std::tr1::cbrt): Likewise.
	(std::tr1::copysign): Likewise.
	(std::tr1::erf): Likewise.
	(std::tr1::erfc): Likewise.
	(std::tr1::exp2): Likewise.
	(std::tr1::expm1): Likewise.
	(std::tr1::fabs): Likewise.
	(std::tr1::fdim): Likewise.
	(std::tr1::fma): Likewise.
	(std::tr1::fmax): Likewise.
	(std::tr1::fmin): Likewise.
	(std::tr1::hypot): Likewise.
	(std::tr1::ilogb): Likewise.
	(std::tr1::lgamma): Likewise.
	(std::tr1::llrint): Likewise.
	(std::tr1::llround): Likewise.
	(std::tr1::log1p): Likewise.
	(std::tr1::log2): Likewise.
	(std::tr1::logb): Likewise.
	(std::tr1::lrint): Likewise.
	(std::tr1::lround): Likewise.
	(std::tr1::nearbyint): Likewise.
	(std::tr1::nextafter): Likewise.
	(std::tr1::nexttoward): Likewise.
	(std::tr1::remainder): Likewise.
	(std::tr1::remquo): Likewise.
	(std::tr1::rint): Likewise.
	(std::tr1::scalbln): Likewise.
	(std::tr1::scalbn): Likewise.
	(std::tr1::tgamma): Likewise.
	(std::tr1::trunc): Likewise.
	(std::tr1::pow): Likewise.

	* testsuite/26_numerics/headers/cmath/c99_classification_macros_c.cc:
	Restrict dg-xfail-if, dg-excess-errors to *-*-solaris2.1[01]*.

From-SVN: r230807
 2015-11-24 13:15:43 +00:00
Edward Smith-Rowland 20b5f0b3e6 Add C++11 header <cuchar>. 
2015-09-04  Edward Smith-Rowland  <3dw4rd@verizon.net>
	    Jonathan Wakely  <jwakely@redhat.com>

	* acinclude.m4 (GLIBCXX_CHECK_UCHAR_H): Define.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Check for <uchar.h>.
	* include/Makefile.am: Add new headers.
	* include/Makefile.in: Regenerate.
	* include/c/cuchar: New.
	* include/c_compatibility/uchar.h: New.
	* include/c_global/cuchar: New.
	* include/c_std/cuchar: New.
	* include/precompiled/stdc++.h: Include <cuchar>.
	* testsuite/17_intro/headers/c++200x/stdc++.cc: Include <uchar.h>.
	* testsuite/17_intro/headers/c++200x/stdc++_multiple_inclusion.cc:
	Include <uchar.h>.

Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>

From-SVN: r227488
 2015-09-04 12:13:34 +01:00
Jonathan Wakely 0b9fc9fee8 re PR libstdc++/66018 (opendir configure test not working when GCC_NO_EXECUTABLES) 
PR libstdc++/66018
	* acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for struct
	dirent.d_type.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* configure.ac (AC_STRUCT_DIRENT_D_TYPE): Remove.

From-SVN: r223194
 2015-05-14 12:47:19 +01:00
Eric Botcazou 9b92a9f3b6 sjlj.m4: New file. 
config/
	* sjlj.m4: New file.
libgcc/
	* configure.ac: Include config/sjlj.m4.
	Remove manual SJLJ check, add GCC_CHECK_SJLJ_EXCEPTIONS and adjust.
	* config.in: Regenerate.
	* configure: Likewise.
	* config.host: Replace enable_sjlj_exceptions by ac_cv_sjlj_exceptions.
libjava/
	* configure.ac: Include config/sjlj.m4.
	Remove manual SJLJ check, add GCC_CHECK_SJLJ_EXCEPTIONS and adjust.
	* include/config.h.in: Regenerate.
	* configure: Likewise.
	* exception.cc: Replace SJLJ_EXCEPTIONS by __USING_SJLJ_EXCEPTIONS__.
	* stacktrace.cc: Likewise.
	* include/default-signal.h: Likewise.
	* sysdep/i386/backtrace.h: Likewise.
libobjc/
	* configure.ac: Remove manual SJLJ check.
	* config.h.in: Regenerate.
	* configure: Likewise.
	* exception.c: Replace SJLJ_EXCEPTIONS by __USING_SJLJ_EXCEPTIONS__.
libstdc++-v3/
	* acinclude.m4 (GLIBCXX_ENABLE_SJLJ_EXCEPTIONS): Delete.
	* configure.ac: Remove GLIBCXX_ENABLE_SJLJ_EXCEPTIONS.
	* config.h.in: Regenerate.
	* configure: Likewise.
	* libsupc++/eh_personality.cc: Replace _GLIBCXX_SJLJ_EXCEPTIONS by
	__USING_SJLJ_EXCEPTIONS__.
	* libsupc++/eh_throw.cc: Likewise.
	* libsupc++/eh_ptr.cc: Likewise.
	* doc/html/manual/appendix_porting.html: Remove
	GLIBCXX_ENABLE_SJLJ_EXCEPTIONS
	* doc/xml/manual/build_hacking.xml: Likewise.
	* doc/html/manual/configure.html: Remove --enable-sjlj-exceptions.
	* doc/xml/manual/configure.xml: Likewise.

From-SVN: r223181
 2015-05-13 21:15:31 +00:00
Jonathan Wakely bf53e6a9dd acinclude.m4 (GLIBCXX_ENABLE_FILESYSTEM_TS): Disable when <dirent.h> is not available. 
* acinclude.m4 (GLIBCXX_ENABLE_FILESYSTEM_TS): Disable when <dirent.h>
	is not available.
	(GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for fchmodat.
	* configure: Regenerate.
	* config.h.in: Regenerate.
	* configure.ac: Check for utime.h
	* include/experimental/fs_path.h (path::string<>)
	[_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Remove stray typename keyword.
	* src/filesystem/dir.cc [!_GLIBCXX_HAVE_DIRENT_H] (DIR, opendir,
	closedir, dirent, readdir_r): Replace dummy functions with #error.
	(native_readdir, _Dir::advance): Use readdir when readdir_r is missing.
	* src/filesystem/ops.cc (do_stat, is_set): Make inline.
	(last_write_time) [!_GLIBCXX_USE_UTIMENSAT]: Use utime.
	(permissions) [!_GLIBCXX_USE_FCHMODAT]: Use chmod.
	(space, temp_directory_path) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Set
	error_code.

From-SVN: r222703
 2015-05-01 20:48:00 +01:00
Jonathan Wakely 0ca7ba9aa6 Implement N4100 File System TS 
* acinclude.m4 (GLIBCXX_ENABLE_FILESYSTEM_TS): Define.
	(GLIBCXX_CHECK_FILESYSTEM_DEPS): Define.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Enable filesystem TS and check its dependencies.
	* include/Makefile.am: Add new headers.
	* include/Makefile.in: Regenerate.
	* include/bits/locale_conv.h (__do_str_code_cvt, __str_codecvt_in,
	__str_codecvt_out): Move code conversion logic from wstring_convert
	into new global functions.
	(wstring_convert::to_bytes, wstring_convert::from_bytes): Use new
	functions.
	(wstring_convert::_M_conv): Remove.
	* include/bits/quoted_string.h (_Quoted_string): Split out of iomanip.
	* include/experimental/filesystem: New.
	* include/experimental/fs_dir.h: New.
	* include/experimental/fs_fwd.h: New.
	* include/experimental/fs_ops.h: New.
	* include/experimental/fs_path.h: New.
	* include/std/iomanip (_Quoted_string): Move to bits/quoted_string.h.
	* python/libstdcxx/v6/printers.py (StdExpPathPrinter): Add.
	* src/Makefile.am (SUBDIRS): Add filesystem.
	* src/Makefile.in: Regenerate.
	* src/filesystem/Makefile.am: New.
	* src/filesystem/Makefile.in: New.
	* src/filesystem/dir.cc: New.
	* src/filesystem/ops.cc: New.
	* src/filesystem/path.cc: New.
	* testsuite/experimental/filesystem/operations/absolute.cc: New.
	* testsuite/experimental/filesystem/operations/copy.cc: New.
	* testsuite/experimental/filesystem/operations/current_path.cc: New.
	* testsuite/experimental/filesystem/path/append/path.cc: New.
	* testsuite/experimental/filesystem/path/assign/assign.cc: New.
	* testsuite/experimental/filesystem/path/assign/copy.cc: New.
	* testsuite/experimental/filesystem/path/compare/compare.cc: New.
	* testsuite/experimental/filesystem/path/compare/path.cc: New.
	* testsuite/experimental/filesystem/path/compare/strings.cc: New.
	* testsuite/experimental/filesystem/path/concat/path.cc: New.
	* testsuite/experimental/filesystem/path/concat/strings.cc: New.
	* testsuite/experimental/filesystem/path/construct/copy.cc: New.
	* testsuite/experimental/filesystem/path/construct/default.cc: New.
	* testsuite/experimental/filesystem/path/construct/locale.cc: New.
	* testsuite/experimental/filesystem/path/construct/range.cc: New.
	* testsuite/experimental/filesystem/path/decompose/extension.cc: New.
	* testsuite/experimental/filesystem/path/decompose/filename.cc: New.
	* testsuite/experimental/filesystem/path/decompose/parent_path.cc:
	New.
	* testsuite/experimental/filesystem/path/decompose/relative_path.cc:
	New.
	* testsuite/experimental/filesystem/path/decompose/root_directory.cc:
	New.
	* testsuite/experimental/filesystem/path/decompose/root_name.cc:
	New.
	* testsuite/experimental/filesystem/path/decompose/root_path.cc:
	New.
	* testsuite/experimental/filesystem/path/decompose/stem.cc: New.
	* testsuite/experimental/filesystem/path/generic/generic_string.cc:
	New.
	* testsuite/experimental/filesystem/path/itr/traversal.cc: New.
	* testsuite/experimental/filesystem/path/modifiers/clear.cc: New.
	* testsuite/experimental/filesystem/path/modifiers/make_preferred.cc:
	New.
	* testsuite/experimental/filesystem/path/modifiers/remove_filename.cc:
	New.
	* testsuite/experimental/filesystem/path/modifiers/replace_extension.cc:
	New.
	* testsuite/experimental/filesystem/path/modifiers/replace_filename.cc:
	New.
	* testsuite/experimental/filesystem/path/modifiers/swap.cc: New.
	* testsuite/experimental/filesystem/path/nonmember/hash_value.cc: New.
	* testsuite/experimental/filesystem/path/query/empty.cc: New.
	* testsuite/experimental/filesystem/path/query/has_extension.cc: New.
	* testsuite/experimental/filesystem/path/query/has_filename.cc: New.
	* testsuite/experimental/filesystem/path/query/has_parent_path.cc:
	New.
	* testsuite/experimental/filesystem/path/query/has_relative_path.cc:
	New.
	* testsuite/experimental/filesystem/path/query/has_root_directory.cc:
	New.
	* testsuite/experimental/filesystem/path/query/has_root_name.cc:
	New.
	* testsuite/experimental/filesystem/path/query/has_root_path.cc:
	New.
	* testsuite/experimental/filesystem/path/query/has_stem.cc: New.
	* testsuite/experimental/filesystem/path/query/is_relative.cc: New.
	* testsuite/util/testsuite_fs.h: New.

From-SVN: r222654
 2015-04-30 20:11:52 +01:00
Jonathan Wakely 34a2b7558b New std::string implementation. 
* acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_CXX11_ABI): Remove.
	(GLIBCXX_ENABLE_LIBSTDCXX_DUAL_ABI, GLIBCXX_DEFAULT_ABI): Add.
	* configure.ac: Use new macros.
	* configure: Regenerate.
	* Makefile.in: Regenerate.
	* doc/Makefile.in: Regenerate.
	* libsupc++/Makefile.in: Regenerate.
	* po/Makefile.in: Regenerate.
	* src/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.
	* include/Makefile.am: Set _GLIBCXX_USE_DUAL_ABI.
	* include/Makefile.in: Regenerate.
	* config/abi/pre/gnu.ver: Export symbols related to new std::string.
	Tighten old patterns to not match new symbols.
	* config/locale/generic/monetary_members.cc: Guard some definitions
	to not compile with new ABI.
	* config/locale/gnu/monetary_members.cc: Likewise.
	* config/locale/gnu/numeric_members.cc: Prevent double-free.
	* config/os/gnu-linux/ldbl-extra.ver: Add new __gnu_cxx_ldbl128
	exports. Tighten old patterns.
	* doc/xml/manual/configure.xml: Document new configure options.
	* doc/html/*: Regenerate.
	* include/bits/basic_string.h (__cxx11::basic_string): Define new
	non-reference-counted implementation in inline namespace __cxx11.
	(stoi, stol, stoll, stof, stod, stold, to_string): Conditionally use
	inline namespace.
	(literals::string_literals::operator"): Conditionally use abi-tag.
	* include/bits/basic_string.tcc (__cxx11::basic_string): Define.
	* include/bits/c++config: Define _GLIBCXX_USE_DUAL_ABI and
	LDBL_CXX11_ABI namespace macros.
	* include/bits/locale_classes.h (locale::name()): Use abi_tag when
	new ABI is in use.
	(locale::_S_twinned_facets): New static member.
	(locale::facet::__shim): Declare new type.
	(locale::_facet::_M_sso_shim, locale::_facet::_M_cow_shim): New
	functions for creating shims.
	(locale::_Impl::_M_facet_unchecked): New member function for use
	during construction.
	(locale::_Impl::_M_init_extra): New member functions to create second
	version of some facets.
	(collate, collate_byname): Use abi_tag when new ABI is in use.
	* include/bits/locale_facets.h: Add _GLIBCXX_NUM_CXX11_FACETS macro.
	(numpunct, numpunct_byname): Use __cxx11 namespace.
	(num_get::_M_extract_float, num_get::_M_extract_int): Use abi_tag
	when new ABI is in use.
	(num_get::__do_get, num_put::__do_put): Do not declare long double
	compat functions for new ABI.
	* include/bits/locale_facets.tcc (num_get, num_put): Use abi_tag on
	definitions.
	(numpunct, numpunct_byname): Qualify explicit instantiations.
	* include/bits/locale_facets_nonio.h (time_get, time_get_byname,
	moneypunct, moneypunct_byname, money_get, money_put, messages,
	messages_byname): Use new inline namespace macros.
	(money_get::__do_get, money_put::__do_put): Do not declare long
	double compat functions for new ABI.
	* include/bits/locale_facets_nonio.tcc (money_get, money_put): Use
	new namespace macros.
	(money_get::__do_get, money_put::__do_put): Do not define for new ABI.
	* include/bits/localefwd.h (numpunct, numpunct_byname, collate,
	collate_byname, time_get, time_get_byname, moneypunct,
	moneypunct_byname, money_get, money_put, messages, messages_byname):
	Use new namespace macros.
	* include/bits/regex.h: Use inline namespace macros.
	* include/bits/stl_list.h (_List_base, list): Use inline namespace
	instead of abi-tag.
	* include/bits/stringfwd.h (basic_string): Use namespace macros.
	* include/std/iosfwd (basic_stringbuf, basic_istringstream,
	basic_ostringstream, basic_stringstream): Likewise.
	* include/std/sstream: Likewise.
	(basic_stringbuf::__xfer_bufptrs): Update streambuf pointers on move.
	* include/std/stdexcept (__cow_string, __sso_string): New types for
	indirectly using std::string with either ABI.
	(logic_error, runtime_error): Replace std::string member with
	__cow_string when new ABI is in use. Declare non-inline copy
	constructor and assignment operator. Declare const char* constructors.
	(domain_error, invalid_argument, length_error, out_of_range,
	range_error, overflow_error, underflow_error): Declare const char*
	constructors.
	* include/std/system_error (error_category): Replace with new
	definition in inline namespace _V2.
	(error_code::message, error_condition::message): Use abi_tag on
	functions returning std::string.
	* python/libstdcxx/v6/printers.py (StdStringPrinter): Handle new ABI.
	* src/c++11/Makefile.am: Add new files.
	* src/c++11/Makefile.in: Regenerate.
	* src/c++11/compatibility-c++0x.cc: Compile with old std::string ABI.
	Define old error_category symbols.
	* src/c++11/cow-fstream-inst.cc: New. Instantiate fstream members
	using old std::string ABI.
	* src/c++11/cow-locale_init.cc (locale::_Impl::_M_init_extra): Define.
	* src/c++11/cow-shim_facets.cc: Define shim facets using old ABI.
	* src/c++11/cow-sstream-inst.cc: Instantiate stringstreams using old
	std::string ABI.
	* src/c++11/cow-stdexcept.cc: Define new constructors and assignment
	operators.
	(__cow_string, error_category::_M_message): Define.
	* src/c++11/cow-string-inst.cc: Explicit instantiations using old
	std::string. Include src/c++98/istream-string.cc.
	* src/c++11/cow-wstring-inst.cc: Explicit instantiations using old
	std::wstring.
	* src/c++11/cxx11-hash_tr1.cc: Explicit instantiations using new
	string.
	* src/c++11/cxx11-ios_failure.cc: Add sanity check.
	* src/c++11/cxx11-locale-inst.cc: Instantiate facets using new
	std::string.
	* src/c++11/cxx11-shim_facets.cc: Define shim facets using new ABI.
	* src/c++11/cxx11-stdexcept.cc: Define constructors taking new
	std::string.
	* src/c++11/cxx11-wlocale-inst.cc: Instantiate facets using
	new std::wstring.
	* src/c++11/fstream-inst.cc: Compile with new ABI.
	* src/c++11/functexcept.cc: Compile with old ABI.
	* src/c++11/random.cc: Compile with new ABI.
	* src/c++11/sstream-inst.cc: Compile with new ABI.
	* src/c++11/string-inst.cc: Explicit instantiations for new string.
	* src/c++11/system_error.cc (__sso_string, error_category::_M_message):
	Define.
	* src/c++11/wstring-inst.cc: Compile with new ABI.
	* src/c++98/Makefile.am: Compile some host files twice for old and
	new std::string. Add new files.
	* src/c++98/Makefile.in: Regenerate.
	* src/c++98/compatibility-ldbl.cc: Compile with old ABI.
	* src/c++98/compatibility.cc: Likewise.
	* src/c++98/concept-inst.cc: Likewise.
	* src/c++98/hash_tr1.cc: Likewise.
	* src/c++98/istream-string.cc: New file defining functions that
	work with istream and std::string moved from ...
	* src/c++98/istream.cc: ... here.
	* src/c++98/cow-istream-string.cc: Recompile istream-string.cc with
	old ABI.
	* src/c++98/locale-inst.cc: Adjust facet instantiations to work for
	either ABI.
	* src/c++98/locale.cc (locale::_M_install_facet,
	locale::_M_install_cache): Handle twinned facets.
	* src/c++98/locale-facets.cc: Compile with old std::string ABI.
	(__verify_grouping): Define new overload and old std::string version.
	* src/c++98/locale_init.cc: Initialize twinned facets.
	* src/c++98/localename.cc: Likewise.
	* src/c++98/misc-inst.cc: Instantiate C++98-only std::string members.
	(__verify_grouping): Define new std::string version.
	* src/c++98/stdexcept.cc: Compile with old std::string ABI.
	* src/c++98/wlocale-inst.cc: Likewise.
	* testsuite/18_support/50594.cc: Adjust to work with SSO strings.
	* testsuite/21_strings/basic_string/capacity/1.cc: Likewise.
	* testsuite/21_strings/basic_string/capacity/char/1.cc: Likewise.
	* testsuite/21_strings/basic_string/capacity/char/18654.cc: Likewise.
	* testsuite/21_strings/basic_string/capacity/char/2.cc: Likewise.
	* testsuite/21_strings/basic_string/capacity/wchar_t/1.cc: Likewise.
	* testsuite/21_strings/basic_string/capacity/wchar_t/18654.cc:
	Likewise.
	* testsuite/21_strings/headers/string/synopsis.cc: Use inline
	namespace macros.
	* testsuite/23_containers/headers/list/synopsis.cc: Likewise.
	* testsuite/27_io/basic_ios/copyfmt/char/1.cc: Set dg-options so
	correct exception type can be caught.
	* testsuite/27_io/basic_ios/exceptions/char/1.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_arithmetic/char/
	exceptions_failbit.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/
	exceptions_failbit.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_other/char/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_other/wchar_t/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_istream/sentry/char/12297.cc: Likewise.
	* testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/char/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/wchar_t/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/ios_base/storage/2.cc: Likewise.
	* testsuite/27_io/ios_base/failure/cxx11.cc: Disable for old ABI.
	* testsuite/ext/profile/mutex_extensions_neg.cc: Adjust dg-error.
	* testsuite/libstdc++-prettyprinters/libfundts.cc: Use old ABI.
	* testsuite/libstdc++-prettyprinters/simple.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/simple11.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/whatis.cc: Likewise.
	* testsuite/util/exception/safety.h: Adjust member function types
	for new std::string.
	* testsuite/util/testsuite_abi.cc: Add new version and ignore
	__float128 symbols in __cxx11 namespace.

From-SVN: r218964
 2014-12-19 18:16:39 +00:00
Marc Glisse bb59f396f8 re PR libstdc++/43622 (Incomplete C++ library support for __float128) 
2014-11-18  Marc Glisse  <marc.glisse@inria.fr>

	PR libstdc++/43622
gcc/cp/
	* rtti.c (emit_support_tinfos): Handle __float128.
libstdc++-v3/
	* config/abi/pre/float128.ver: New file.
	* configure.ac: Use float128.ver when relevant.
	* configure: Regenerate.
	* testsuite/util/testsuite_abi.cc (check_version): Accept new
	CXXABI_FLOAT128 version.

From-SVN: r217735
 2014-11-18 20:20:53 +00:00
Jonathan Wakely 375f837be1 re PR libstdc++/49561 ([C++0x] std::list::size complexity) 
PR libstdc++/49561
	* acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_CXX11_ABI): Define.
	* configure.ac: Use GLIBCXX_ENABLE_LIBSTDCXX_CXX11_ABI.
	* configure: Regenerate.
	* include/Makefile.am (stamp-cxx11-abi): New target.
	(c++config.h): Set _GLIBCXX_USE_CXX11_ABI macro.
	* include/Makefile.in: Regenerate.
	* include/bits/c++config: Add _GLIBCXX_USE_CXX11_ABI placeholder and
	define _GLIBCXX_DEFAULT_ABI_TAG.
	* include/bits/list.tcc (list::emplace(const_iterator, _Args&...)):
	Increment size.
	(list::emplace(const_iterator, const value_type&)): Likewise.
	(list::merge(list&), list::merge(list&, _StrictWeakOrdering)): Adjust
	list sizes.
	* include/bits/stl_list.h (_List_base, list): Add ABI tag macro.
	(_List_base::_M_size): New data member in cxx11 ABI mode.
	(_List_base::_S_distance(_List_node_base*, _List_node_base*)): New
	function.
	(_List_base::_M_get_size(), _List_base::_M_set_size(size_t),
	_List_base::_M_inc_size(size_t), _List_base::_M_dec_size(size_t),
	_List_base::_M_distance, _List_base::_M_node_count): New functions for
	accessing list size correctly for the ABI mode.
	(_List_base::_List_base(_List_base&&)): Copy size and reset source.
	(_List_base::_M_init()): Initialize size member.
	(list::size()): Use _List_base::_M_node_count.
	(list::swap(list&)): Swap sizes.
	(list::splice(iterator, list&)): Update sizes.
	(list::splice(iterator, list&, iterator)): Likewise.
	(list::insert(iterator, const value_type&)): Update size.
	(list::insert(iterator, _Args&&...)): Likewise.
	(list::_M_erase(iterator)): Likewise.
	* testsuite/23_containers/list/requirements/dr438/assign_neg.cc:
	Adjust.
	* testsuite/23_containers/list/requirements/dr438/constructor_1_neg.cc:
	Adjust.
	* testsuite/23_containers/list/requirements/dr438/constructor_2_neg.cc:
	Adjust.
	* testsuite/23_containers/list/requirements/dr438/insert_neg.cc:
	Adjust.
	* testsuite/ext/profile/mutex_extensions_neg.cc: Adjust.

From-SVN: r216094
 2014-10-10 16:33:57 +01:00
Bernhard Reutner-Fischer 7370b9df65 acinclude.m4 (GLIBCXX_CHECK_TMPNAM): New check for tmpnam function. 
2014-01-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>
	    Steve Ellcey  <sellcey@mips.com>

	* acinclude.m4 (GLIBCXX_CHECK_TMPNAM): New check for tmpnam
	function.
	* configure.ac: Use GLIBCXX_CHECK_TMPNAM.
	* (configure, config.h.in): Regenerate.
	* include/c_global/cstdio: Guard ::tmpnam with _GLIBCXX_USE_TMPNAM

Co-Authored-By: Steve Ellcey <sellcey@mips.com>

From-SVN: r207009
 2014-01-23 21:17:15 +00:00
Steve Ellcey 5e5f34bf63 configure.ac: Add header checks for fenv.h and complex.h. 
2013-10-31  Steve Ellcey  <sellcey@mips.com>

	* configure.ac: Add header checks for fenv.h and complex.h.
	* configure: Regenerate.

From-SVN: r204270
 2013-10-31 17:12:35 +00:00
Caroline Tice 2077db1be5 Commit the vtable verification feature. 
Commit the vtable verification feature.  This feature is designed to
detect, at run time, if/when the vtable pointer in a C++ object has
been corrupted, before allowing virtual calls through that pointer. 
If pointer corruption is detected, execution of the program is halted.

libstdc++-v3 ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        * fragment.am: Add XTEMPLATE_FLAGS.
        * configure.ac: Add definitions for --enable-vtable-verify.
        * acinclude.m4:  Add --enable-vtable-verify and
        --disable-vtable-verify; define --enable-vtable-verify; define
        VTV_CXXFLAGS, VTV_PCH_CXXFLAGS and VTV_CXXLINKFLAGS.
        * config/abi/pre/gnu.ver: Export symbols for vtable verification.
        * libsupc++/Makefile.am: Define vtv_sources and add it to
        libsupc___la_SOURCES and libsupc__convenience_la_SOURCES.
        * libsupc++/vtv_stubs.cc: New file.
        * include/Makefile.am: Add VTV_PCH_CXXFLAGS to PCHFLAGS.
        * src/Makefile.am: Add VTV_CXXFLAGS to AM_CXXFLAGS; add
        VTV_CXXLINKFLAGS to CXXLINK.
        * src/c++98/Makefile.am: Comment out XTEMPLATE_FLAGS; add VTV_CXXFLAGS
        to AM_CXXFLAGS; add VTV_CXXXLINKFLAGS to CXXLINK.
        * src/C++11/Makefile.am: Ditto.
        * doc/xml/manual/configure.xml: Add entry for --enable-vtable-verify.
        * scripts/testsuite_flags.in: Add cxxvtvflags to Usage; cause
        cxxvtvflags to use VTV_CXXFLAGS and VTV_CXXLINKFLAGS.
        * testsuite/lib/libstdc++.exp: Add cxxvtvflags; add code to locate
        libvtv if --enable-vtable-verify was used; set cxxvtvflags; add
        cxxvtvflags to cxx_final.
        * testsuite/18_support/bad_exception/23591_thread-1.c: Add
        -fvtable-verify=none to compiler flags.
        * testsuite/17_intro/freestanding.cc: Add -fvtable-verify=none
        to compiler flags.
        * configure: Regenerated.
        * Makefile.in: Regenerated.
        * python/Makefile.in: Regenerated.
        * include/Makefile.in: Regenerated.
        * libsupc++/Makefile.in: Regenerated.
        * config.h.in: Regenerated.
        * po/Makefile.in: Regenerated.
        * src/Makefile.in: Regenerated.
        * src/c++98/Makefile.in: Regenerated.
        * src/c++11/Makefile.in: Regenerated.
        * doc/Makefile.in: Regenerated.
        * testsuite/Makefile.in: Regenerated.

top level ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        * configure.ac: Add target-libvtv to target_libraries; disable libvtv
        on non-linux systems; add target-libvtv to noconfigdirs; add
        libsupc++/.libs to C++ library search paths.
        * configure: Regenerated.
        * Makefile.def: Add libvtv to target_modules; make libvtv depend on
        libstdc++ and libgcc.
        * Makefile.in: Regenerated.

include/ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        * vtv-change-permission.h: New file.

contrib/ChangeLog:
2013-08-06  Caroline Tice4  <cmtice@google.com>

        * gcc_update: Add libvtv files.

libgcc/ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        config.host (extra_parts): Add vtv_start.o, vtv_end.o
        vtv_start_preinit.o and vtv_end_preinit.o.
        configure.ac: Add code to check/set enable_vtable_verify.
        Makefile.in: Add rules to build vtv_*.o, if enable_vtable_verify is
        true.
        vtv_start_preinit.c: New file.
        vtv_end_preinit.c: New file.
        vtv_start.c: New file.
        vtv_end.c: New file.
        configure: Regenerated.

gcc/ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        * gcc.c (VTABLE_VERIFICATION_SPEC): New definition.
        (LINK_COMMAND_SPEC): Add VTABLE_VERIFICATION_SPEC.
        * tree-pass.h: Add pass_vtable_verify.
        * varasm.c (assemble_variable): Add code to properly set the comdat
        section and name for the .vtable_map_vars section.
        (assemble_vtyv_preinit_initializer): New function.
        (default_sectin_type_flags):  Make sure .vtable_map_vars section has
        LINK_ONCE flag.
        * output.h: Add function decl for assemble_vtv_preinit_initializer.
        * vtable-verify.c: New file.
        * vtable-verify.h: New file.
        * flag-types.h (enum vtv_priority): Defintions for flag_vtable_verify
        initialiation levels.
        * timevar.def (TV_VTABLE_VERIFICATION): New definition.
        * passes.def: Insert pass_vtable_verify.
        * aclocal.m4: Reorder includes.
        * doc/invoke.texi: Add documentation for the flags -fvtable-verify=,
	-fvtv-debug and -fvtv-counts.
        * config/gnu-user.h (GNU_USER_TARGET_STARTFILE_SPEC): Add vtv_start*.o,
as appropriate, if -fvtable-verify=... is used.
        (GNU_USER_TARGET_ENDFILE_SPEC): Add vtv_end*.o as appropriate, if
        -fvtable-verify=... is used.
        * Makefile.in (OBJS):  Add vtable-verify.o to list.
        (vtable-verify.o): Add new build rule.
        (GTFILES): Add vtable-verify.c to list.
        * common.opt (fvtable-verify=): New flag.
        (vtv_priority): Values for fvtable-verify= flag.
        (fvtv-counts): New flag.
(fvtv-debug): New flag.
        * tree.h (save_vtable_map_decl): New extern function decl.


gcc/cp/ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        * Make-lang.in (*CXX_AND_OBJCXX_OBJS):  Add vtable-class-hierarchy.o to
        list.
        (vtable-class-hierarchy.o): Add build rule.
        * cp-tree.h (vtv_start_verification_constructor_init_function): New
        extern function decl.
        (vtv_finish_verification_constructor_init_function): New extern
        function decl.
        (build_vtbl_address): New extern function decl.
        (get_mangled_vtable_map_var_name): New extern function decl.
        (vtv_compute_class_hierarchy_transitive_closure): New extern function
        decl.
        (vtv_generate_init_routine): New extern function decl.
        (vtv_save_class_info): New extern function decl.
        (vtv_recover_class_info): New extern function decl.
        (vtv_build_vtable_verify_fndecl): New extern function decl.
        * class.c (finish_struct_1): Add call to vtv_save_class_info if
        flag_vtable_verify is true.
        * config-lang.in: Add vtable-class-hierarchy.c to gtfiles list.
        * vtable-class-hierarchy.c: New file.
        * mangle.c (get_mangled_vtable_map_var_name):  New function.
        * decl2.c (start_objects): Update function comment.
        (cp_write_global_declarations): Call vtv_recover_class_info,
        vtv_compute_class_hierarchy_transitive_closure and
        vtv_build_vtable_verify_fndecl, before calling
        finalize_compilation_unit, and call vtv_generate_init_rount after, IFF
        flag_vtable_verify is true.
        (vtv_start_verification_constructor_init_function): New function.
        (vtv_finish_verification_constructor_init_function): New function.
        * init.c (build_vtbl_address): Remove static qualifier from function.

libvtv/ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        Initial check-in of new vtable verification feature.
        * configure.ac : New file.
        * acinclude.m4 : New file.
        * Makefile.am : New file.
        * aclocal.m4 : New file.
        * configure.tgt : New file.
        * configure: New file (generated).
        * Makefile.in: New file (generated).
        * vtv_set.h : New file.
        * vtv_utils.cc : New file.
        * vtv_utils.h : New file.
        * vtv_malloc.cc : New file.
        * vtv_rts.cc : New file.
        * vtv_malloc.h : New file.
        * vtv_rts.h : New file.
        * vtv_fail.cc : New file.
        * vtv_fail.h : New file.
        * vtv_map.h : New file.
        * scripts/run-testsuite.sh : New file.
        * scripts/sum-vtv-counts.c : New file.
        * testsuite/parts-test-main.h : New file.
        * testusite/dataentry.cc : New file.
        * testsuite/temp_deriv.cc : New file.
        * testsuite/register_pair.cc : New file.
        * testsuite/virtual_inheritance.cc : New file.
        * testsuite/field-test.cc : New file.
        * testsuite/nested_vcall_test.cc : New file.
        * testsuite/template-list-iostream.cc : New file.
        * testsuite/register_pair_inserts.cc : New file.
        * testsuite/register_pair_inserts_mt.cc : New file.
        * testsuite/event.list : New file.
        * testsuite/parts-test-extra-parts-views.cc : New file.
        * testsuite/parts-test-extra-parts-views.h : New file.
        * testsuite/environment-fail-32.s : New file.
        * testsuite/parts-test-extra-parts.h : New file.
        * testsuite/temp_deriv2.cc : New file.
        * testsuite/dlopen_mt.cc : New file.
        * testsuite/event.h : New file.
        * testsuite/template-list.cc : New file.
        * testsuite/replace-fail.cc : New file.
        * testsuite/Makefile.am : New file.
        * testsuite/Makefile.in: New file (generated).
        * testsuite/mempool_negative.c : New file.
        * testsuite/parts-test-main.cc : New file.
        * testsuite/event-private.cc : New file.
        * testsuite/thunk.cc : New file.
        * testsuite/event-defintiions.cc : New file.
        * testsuite/event-private.h : New file.
        * testsuite/parts-test.list : New file.
        * testusite/register_pair_mt.cc : New file.
        * testsuite/povray-derived.cc : New file.
        * testsuite/event-main.cc : New file.
        * testsuite/environment.cc : New file.
        * testsuite/template-list2.cc : New file.
        * testsuite/thunk_vtable_map_attack.cc : New file.
        * testsuite/parts-test-extra-parts.cc : New file.
        * testsuite/environment-fail-64.s : New file.
        * testsuite/dlopen.cc : New file.
        * testsuite/so.cc : New file.
        * testsuite/temp_deriv3.cc : New file.
        * testsuite/const_vtable.cc : New file.
        * testsuite/mempool_positive.c : New file.
        * testsuite/dup_name.cc : New file.

From-SVN: r201555
 2013-08-06 20:38:59 -07:00
Jonathan Wakely 88b1a02566 acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Add KIND=auto to enable features if target OS is known to support them. 
* acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Add KIND=auto to
	enable features if target OS is known to support them.
	* configure.ac (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Default to 'auto'.
	* configure: Regenerate.

From-SVN: r199183
 2013-05-22 09:12:45 +01:00
Tom Tromey d74e340d7c configure, [...]: Rebuild. 
* configure, config.h.in: Rebuild.
	* configure.ac: Use GLIBCXX_CHECK_SDT_H.  Don't check for
	sys/sdt.h.
	* acinclude.m4 (GLIBCXX_CHECK_SDT_H): New defun.

From-SVN: r197649
 2013-04-09 20:55:17 +00:00
Tom Tromey 83c214a835 unwind-cxx.h: Include sys/sdt.h if detected. 
* libsupc++/unwind-cxx.h: Include sys/sdt.h if detected.
	(PROBE2): New macro.
	* libsupc++/eh_throw.cc (__cxa_throw, __cxa_rethrow): Add probe.
	* libsupc++/eh_catch.cc (__cxa_begin_catch): Add probe.
	* configure.ac: Check for sys/sdt.h.
	* configure, config.h.in: Rebuild.

From-SVN: r196674
 2013-03-15 09:55:07 +01:00
Jason Merrill bed152e374 configure.ac: Check for __cxa_thread_atexit_impl. 
* configure.ac: Check for __cxa_thread_atexit_impl.
	* libsupc++/atexit_thread.cc (__cxa_thread_atexit): Just forward
	to it if available.
	* config.h.in, configure: Regenerate.

From-SVN: r196276
 2013-02-25 23:39:04 -05:00
Ulrich Drepper 48c7b524c1 Optimize bulk mode for normal_distribution<double> for SSE3. 
2012-09-26  Ulrich Drepper  <drepper@gmail.com>

	Optimize bulk mode for normal_distribution<double> for SSE3.
	* configure.host: Define cpu_opt_bits_random.
	* configure.ac: Substitute CPU_OPT_BITS_RANDOM.
	* include/Makefile.am (bits_headers): Add ${bits_host_headers}.
	(bits_host_headers): Define.
	* include/bits/random.tcc: Move __details::_Power_of_2 to...
	* include/bits/random.h: ...here.
	* include/std/random: Include <bits/opt_random.h>.
	* config/cpu/i486/opt/bits/opt_random.h: New file.
	* config/cpu/generic/opt/bits/opt_random.h: New file.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
	* aclocal.m4: Regenerated.
	* doc/Makefile.in: Regenerated.
	* include/Makefile.in: Regenerated.
	* libsupc++/Makefile.in: Regenerated.
	* po/Makefile.in: Regenerated.
	* python/Makefile.in: Regenerated.
	* src/Makefile.in: Regenerated.
	* src/c++11/Makefile.in: Regenerated.
	* src/c++98/Makefile.in: Regenerated.
	* testsuite/Makefile.in: Regenerated.

	* config/cpu/generic/opt/ext/opt_random.h: Fix comment.

From-SVN: r191758
 2012-09-26 13:10:26 +00:00
Benjamin Kosnik ac6d1200be re PR libstdc++/28811 (--with-pic vs static libraries and libstdc++) 
2012-09-18  Benjamin Kosnik  <bkoz@redhat.com>

        PR libstdc++/28811
        PR libstdc++/54482
        * configure.ac (glibcxx_lt_pic_flag,
          glibcxx_compiler_pic_flag,
          glibcxx_compiler_shared_flag): New. Use them.
        (lt_prog_compiler_pic_CXX): Set via glibcxx_*_flag(s) above.
        (pic_mode): Set to default.
        (PIC_CXXFLAGS): Remove.
        * Makefile.am (PICFLAG, PICFLAG_FOR_TARGET): Remove. Comment.
        * libsupc++/Makefile.am: Use glibcxx_ld_pic_flag and
          glibcxx_compiler_shared_flag. Comment.
        * src/c++11/Makefile.am: Same.
        * src/c++98/Makefile.am: Same.
        * src/Makefile.am: Use glibcxx_compiler_pic_flag.

        * Makefile.in: Regenerated.
        * aclocal.m4: Same.
        * configure: Same.
        * doc/Makefile.in: Same.
        * include/Makefile.in: Same.
        * libsupc++/Makefile.in: Same.
        * po/Makefile.in: Same.
        * python/Makefile.in: Same.
        * src/Makefile.in: Same.
        * src/c++11/Makefile.in: Same.
        * src/c++98/Makefile.in: Same.
        * testsuite/Makefile.in: Same.

        * src/c++11/compatibility-atomic-c++0x.cc: Use
          _GLIBCXX_SHARED instead of PIC to designate shared-only
          code blocks.
        * src/c++11/compatibility-c++0x.cc: Same.
        * src/c++11/compatibility-thread-c++0x.cc: Same.
        * src/c++98/compatibility-list-2.cc: Same.
        * src/c++98/compatibility.cc: : Same.

        * testsuite/17_intro/shared_with_static_deps.cc: New.

        * doc/xml/manual/build_hacking.xml: Separate configure from
        make/build issues, add build details.

From-SVN: r191509
 2012-09-20 02:10:22 +00:00
Ulrich Drepper 9bf714c23f configure.ac: Substitute CPU_OPT_EXT_RANDOM. 
* configure.ac: Substitute CPU_OPT_EXT_RANDOM.
	* configure.host: Define cpu_opt_ext_random to location of the
	optimized version of <ext/random>.
	* include/Makefile.am (ext_headers): Add ${ext_host_headers}.
	(ext_host_headers): Define.
	* include/ext/random (simd_fast_mersenne_twister_engine<>
	::operator==): Don't define function here.
	* include/ext/random.tcc (simd_fast_mersenne_twister_engine): Don't
	define code using SSE2 here.  Define generic code only if
	_GLIBCXX_OPT_HAVE_RANDOM_SFMT_GEN_READ is not defined.
	(simd_fast_mersenne_twister_engine<>
	::operator==): Define here if
	_GLIBCXX_OPT_HAVE_RANDOM_SFMT_OPERATOREQUAL is not defined.
	* config/cpu/generic/opt/ext/opt_random.h: New file.
	* config/cpu/i486/opt/ext/opt_random.h: New file.
	* libsupc++/Makefile.in: Regenerated.
	* testsuite/Makefile.in: Regenerated.
	* po/Makefile.in: Regenerated.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
	* doc/Makefile.in: Regenerated.
	* aclocal.m4: Regenerated.
	* python/Makefile.in: Regenerated.
	* include/Makefile.in: Regenerated.
	* src/c++98/Makefile.in: Regenerated.
	* src/c++11/Makefile.in: Regenerated.
	* src/Makefile.in: Regenerated.

From-SVN: r191384
 2012-09-17 13:02:39 +00:00
Rainer Orth 9520425b6b Clear hardware capabilities on libstdc++.so with Sun as 
* acinclude.m4 (GLIBCXX_CHECK_ASSEMBLER_HWCAP): Define.
	* configure.ac: Call GLIBCXX_CHECK_ASSEMBLER_HWCAP.
	* fragment.am (CONFIG_CXXFLAGS): Add $(HWCAP_FLAGS).
	* configure: Regenerate.
	* Makefile.in: Regenerate.
	* doc/Makefile.in: Regenerate.
	* include/Makefile.in: Regenerate.
	* libsupc++/Makefile.in: Regenerate.
	* po/Makefile.in: Regenerate.
	* python/Makefile.in: Regenerate.
	* src/Makefile.in: Regenerate.
	* src/c++11/Makefile.in: Regenerate.
	* src/c++98/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.

From-SVN: r191218
 2012-09-12 12:38:15 +00:00
Sebastian Huber 5a86d36fcc re PR libstdc++/43852 (Embedded systems friendly libstdc++) 
2012-09-10  Sebastian Huber  <sebastian.huber@embedded-brains.de>
	    Jonathan Wakely  <jwakely.gcc@gmail.com>

	PR libstdc++/43852
	* acinclude.m4 (GLIBCXX_ENABLE_VERBOSE): Define.
	* configure.ac (GLIBCXX_ENABLE_VERBOSE): Use it.
	* config.h.in: Regenerate.
	* configure: Likewise.
	* libsupc++/eh_term_handler.cc (_GLIBCXX_VERBOSE): Check new macro.
	* libsupc++/pure.cc (_GLIBCXX_VERBOSE): Likewise.
	* doc/xml/manual/configure.xml (--disable-libstdcxx-verbose): Document.
	* doc/html/manual/configure.html: Regenerate.

Co-Authored-By: Jonathan Wakely <jwakely.gcc@gmail.com>

From-SVN: r191121
 2012-09-10 00:08:48 +01:00
Ulrich Drepper 3ca6351daa re PR bootstrap/54419 (Compiling libstdc++-v3/src/c++11/random.cc fails on platforms not knowing rdrand) 
2012-09-09  Ulrich Drepper  <drepper@gmail.com>
	    Dominique d'Humieres  <dominiq@lps.ens.fr>
	    Jack Howarth  <howarth@bromo.med.uc.edu>

	PR bootstrap/54419
	* acinclude.m4: Define GLIBCXX_CHECK_X86_RDRAND.
	* configure.ac: Use GLIBCXX_CHECK_X86_RDRAND to test for rdrand
	support in assembler.
	* src/c++11/random.cc (__x86_rdrand): Depend on _GLIBCXX_X86_RDRAND.
	(random_device::_M_init): Likewise.
	(random_device::_M_getval): Likewise.
	* configure: Regenerated.
	* config.h.in: Regenerated.

Co-Authored-By: Dominique d'Humieres <dominiq@lps.ens.fr>
Co-Authored-By: Jack Howarth <howarth@bromo.med.uc.edu>

From-SVN: r191111
 2012-09-09 18:20:42 +01:00
Benjamin Kosnik 8d24c97565 re PR libstdc++/54102 (generated html vs. utf8) 
2012-08-28  Benjamin Kosnik  <bkoz@redhat.com>

	PR libstdc++/54102
	* doc/xsl/customization.xsl.in: New.
	* configure.ac: Output local copy of customization xsl.
	* doc/Makefile.am (stamp-html-single-docbook): Use XSL_LOCAL_STYLE.
	(stamp-html-docbook): Set stringparam to UTF-8.
	* Makefile.in: Regenerated.
	* configure: Same.
	* doc/Makefile.in: Same.

From-SVN: r190768
 2012-08-29 01:37:16 +00:00
Rainer Orth 7888f2660e Remove obsolete Solaris 8 support 
libstdc++-v3:
	* config/os/solaris/solaris2.8: Rename to ...
	* config/os/solaris/solaris2.9: ... this.
	* config/abi/post/solaris2.8: Rename to ...
	* config/abi/post/solaris2.9: ... this.
	* configure.host (os_include_dir): Remove solaris2.8.
	Reflect renaming.
	(abi_baseline_pair): Remove *-*-solaris2.8.
	Reflect renaming.

	* configure.ac (GLIBCXX_CHECK_MATH_PROTO): Remove
	(GLIBCXX_CHECK_STDLIB_PROTO): Remove.
	* acinclude.m4 (GLIBCXX_CHECK_MATH_PROTO): Remove
	(GLIBCXX_CHECK_STDLIB_PROTO): Remove.
	(GLIBCXX_CHECK_GTHREADS): Remove Solaris 8 handling.
	* crossconfig.m4 (GLIBCXX_CROSSCONFIG): Remove *-solaris2.8
	handling.
	* configure: Regenerate.
	* config.h.in: Regenerate.

	* config/os/solaris/solaris2.9/os_defines.h
	(__CORRECT_ISO_CPP_MATH_H_PROTO): Define.
	(__CORRECT_ISO_CPP_STDLIB_H_PROTO): Define.
	* include/c_global/cmath: Rename __CORRECT_ISO_CPP_MATH_H_PROTO1
	to __CORRECT_ISO_CPP_MATH_H_PROTO.
	[!__CORRECT_ISO_CPP_MATH_H_PROTO2]: Remove.
	* include/tr1/cmath: Rename __CORRECT_ISO_CPP_MATH_H_PROTO1 to
	__CORRECT_ISO_CPP_MATH_H_PROTO.

	* doc/xml/manual/configure.xml (Configure, --enable-libstdcxx-threads):
	Remove Solaris 8 reference.

	* testsuite/27_io/basic_istream/extractors_arithmetic/char/12.cc:
	Don't xfail on *-*-solaris2.8.
	* testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/12.cc:
	Likewise.
	* testsuite/ext/enc_filebuf/char/13598.cc: Don't xfail on
	*-*-solaris2.8.

	libjava:
	* configure.ac (THREADLIBS): Remove *-*-solaris2.8 handling.
	* configure: Regenerate.

	libgcc:
	* config/i386/sol2-unwind.h (x86_fallback_frame_state): Remove
	Solaris 8 handling.
	* config/sparc/sol2-unwind.h (sparc64_is_sighandler): Remove
	Solaris 8 handling.
	(sparc_is_sighandler): Likewise.

	libcpp:
	* lex.c: Remove Solaris 8 reference.

	gcc/testsuite:
	* g++.dg/warn/miss-format-1.C: Remove *-*-solaris2.8 handling.
	* gcc.dg/c99-stdint-6.c: Likewise.
	* gcc.dg/lto/20090210_0.c: Likewise.
	* gcc.dg/pr28796-2.c: Don't skip on sparc*-sun-solaris2.8.
	* gcc.dg/pragma-init-fini.c: Don't skip on i?86-*-solaris2.8.
	* gcc.dg/pragma-init-fini-2.c: Likewise.
	* gcc.dg/torture/pr47917.c: Remove *-*-solaris2.8 handling.
	* gcc.target/i386/pr22076.c: Remove i?86-*-solaris2.8 handling.
	* gcc.target/i386/pr22152.c: Likewise.
	* gcc.target/i386/vect8-ret.c: Likewise.
	* lib/target-supports.exp (add_options_for_tls): Remove Solaris 8
	handling.

	gcc:
	* config.gcc (enable_obsolete): Remove *-*-solaris2.8*.
	(*-*-solaris2.[0-8], *-*-solaris2.[0-8].*): Mark unsupported.
	(i[34567]86-*-solaris2*, x86_64-*-solaris2.1[0-9]*): Remove
	Solaris 8 support.
	* configure.ac (gcc_cv_ld_hidden): Remove *-*-solaris2.8*.
	(ld_tls_support): Remove Solaris 8 references.
	(lwp_dir, lwp_spec): Remove support for alternate thread library.
	* acinclude.m4 (gcc_cv_initfini_array): Remove *-*-solaris2.*
	tests.
	* configure: Regenerate.
	* config.in: Regenerate.

	* config/sol2.h (LINK_SPEC): Remove LIB_THREAD_LDFLAGS_SPEC.
	* config/i386/sol2.h: Remove Solaris 8 references.

	* doc/install.texi (Specific, i?86-*-solaris2.[89]): Rename to ...
	(i?86-*-solaris2.9): ... this.
	Remove Solaris 8 references.
	(Specific, *-*-solaris2*): Document Solaris 8 removal.
	Remove Solaris 8 references.

	fixincludes:
	* inclhack.def (math_exception): Remove duplicate.
	(solaris_cond_init): Remove.
	(solaris_sys_va_list): Remove Solaris 8 support.
	* fixincl.x: Regenerate.
	* tests/base/pthread.h [SOLARIS_COND_INIT_CHECK]: Remove.

From-SVN: r185392
 2012-03-14 17:08:03 +00:00
Benjamin Kosnik 1b6ce36fe8 re PR libstdc++/51785 (gets not anymore declared) 
2012-03-01  Benjamin Kosnik  <bkoz@redhat.com>
            Ramana Radhakrishnan <ramana@gcc.gnu.org>

	PR libstdc++/51785
	* acinclude.m4 (GLIBCXX_CHECK_STDIO_PROTO): New.
	* configure.ac: Call it.
	* configure: Regenerate.
	* config.h.in: Same.
	* config/os/gnu-linux/os_defines.h: Conditionally undefine
	_GLIBCXX_HAVE_GETS.
	* include/c_global/cstdio: Conditionally declare deprecated gets.
	* include/c_std/cstdio: Same.

Co-Authored-By: Ramana Radhakrishnan <ramana@gcc.gnu.org>

From-SVN: r184774
 2012-03-02 07:13:55 +00:00
Benjamin Kosnik b124c5c482 re PR libstdc++/47058 ("--enable-maintainer-mode --disable-werror" wrongly upgrades warnings to errors in libstdc++) 
2012-02-17  Benjamin Kosnik  <bkoz@redhat.com>

	PR libstdc++/47058
	* acinclude.m4 (GLIBCXX_ENABLE_WERROR): New.
	(GLIBCXX_EXPORT_FLAGS): Add -Wabi to WARN_FLAGS
	* configure.ac: Use it.
	* fragment.am: Set WERROR_FLAG conditionally on --disable-werror.
	* configure: Regenerate.
	* python/Makefile.in: Same.
	* Makefile.in: Same.
	* doc/Makefile.in: Same.
	* include/Makefile.in: Same.
	* po/Makefile.in: Same.
	* python/Makefile.in: Same.
	* src/Makefile.in: Same.
	* src/c++11/Makefile.in: Same.
	* src/c++98/Makefile.in: Same.
	* testsuite/Makefile.in: Same.

From-SVN: r184349
 2012-02-17 20:26:32 +00:00
Rainer Orth bae868fba9 Disable gthreads on Solaris 8/9 (PR libstdc++/52189) 
PR libstdc++/52189
	* acinclude.m4 (GLIBCXX_CHECK_GTHREADS): Handle
	--enable-libstdcxx-threads.
	Disable on Solaris 8/9 with symbol versioning.
	* configure.ac (GLIBCXX_CHECK_GTHREADS): Move after
	GLIBCXX_ENABLE_SYMVERS.
	* configure: Regenerate.
	* doc/xml/manual/configure.xml (--enable-libstdcxx-threads): Explain.

From-SVN: r184335
 2012-02-17 13:38:15 +00:00