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2019-05-29PR libstdc++/85494 use rdseed and rand_s in std::random_deviceJonathan Wakely1-0/+3
Add support for additional sources of randomness to std::random_device, to allow using RDSEED for Intel CPUs and rand_s for Windows. When supported these can be selected using the tokens "rdseed" and "rand_s". For *-w64-mingw32 targets the "default" token will now use rand_s, and for other i?86-*-* and x86_64-*-* targets it will try to use "rdseed" first, then "rdrand", and finally "/dev/urandom". To simplify the declaration of std::random_device in <bits/random.h> the constructors now unconditionally call _M_init instead of _M_init_pretr1, and the function call operator now unconditionally calls _M_getval. The library code now decides whether _M_init and _M_getval should use a real source of randomness or the mt19937 engine. Existing code compiled against old libstdc++ headers will still call _M_init_pretr1 and _M_getval_pretr1, but those functions now forward to _M_init and _M_getval if a real source of randomness is available. This means existing code compiled for mingw-w64 will start to use rand_s just by linking to a new libstdc++.dll. * acinclude.m4 (GLIBCXX_CHECK_X86_RDSEED): Define macro to check if the assembler supports rdseed. * config.h.in: Regenerate. * configure: Regenerate. * configure.ac: Use GLIBCXX_CHECK_X86_RDSEED. * config/os/mingw32-w64/os_defines.h (_GLIBCXX_USE_CRT_RAND_S): Define. * doc/html/*: Regenerate. * doc/xml/manual/status_cxx2011.xml: Document new tokens. * include/bits/random.h (random_device::random_device()): Always call _M_init rather than _M_init_pretr1. (random_device::random_device(const string&)): Likewise. (random_device::operator()()): Always call _M_getval(). (random_device::_M_file): Replace first member of union with an anonymous struct, with _M_file as its first member. * src/c++11/random.cc [_GLIBCXX_X86_RDRAND] (USE_RDRAND): Define. [_GLIBCXX_X86_RDSEED] (USE_RDSEED): Define. (USE_MT19937): Define if none of the above are defined. (USE_POSIX_FILE_IO): Define. (_M_strtoul): Remove. [USE_RDSEED] (__x86_rdseed): Define new function. [_GLIBCXX_USE_CRT_RAND_S] (__winxp_rand_s): Define new function. (random_device::_M_init(const string&)): Initialize new union members. Add support for "rdseed" and "rand_s" tokens. Decide what the "default" token does according to which USE_* macros are defined. [USE_POSIX_FILE_IO]: Store a file descriptor. [USE_MT19937]: Forward to _M_init_pretr1 instead. (random_device::_M_init_pretr1(const string&)) [USE_MT19937]: Inline code from _M_strtoul. [!USE_MT19937]: Call _M_init, transforming the old default token or numeric tokens to "default". (random_device::_M_fini()) [USE_POSIX_FILE_IO]: Use close not fclose. (random_device::_M_getval()): Use new union members to obtain a random number from the stored function pointer or file descriptor. [USE_MT19937]: Obtain a value from the mt19937 engine. (random_device::_M_getval_pretr1()): Call _M_getval(). (random_device::_M_getentropy()) [USE_POSIX_FILE_IO]: Use _M_fd instead of fileno. [!USE_MT19937] (mersenne_twister): Do not instantiate when not needed. * testsuite/26_numerics/random/random_device/85494.cc: New test. From-SVN: r271740
2019-03-11PR libstdc++/89460 Fix Networking TS test failures on HP-UXJonathan Wakely1-0/+3
Check for availability of POSIX sockatmark before using it. Rename _S_ntoh overloads that are ambiguous when passed an integral type that is neither uint16_t nor uint32_t. PR libstdc++/89460 * configure.ac: Check for sockatmark. * crossconfig.m4: Check for sockatmark. * config.h.in: Regenerate. * configure: Regenerate. * include/experimental/internet (address_v4::_S_hton): Rename overloaded functions to _S_hton_16 and _S_ntoh_16. (address_v4::_S_ntoh): Rename to _S_ntoh_16 and _S_ntoh_32. (basic_endpoint): Adjust calls to _S_hton and _S_ntoh. * include/experimental/socket (basic_socket::at_mark): Check _GLIBCXX_HAVE_SOCKATMARK. From-SVN: r269588
2019-02-14Add std::timespec and std::timespec_get for C++17Jonathan Wakely1-0/+3
* configure.ac: Check for C11 timespec_get function. * crossconfig.m4 (freebsd, linux, gnu, cygwin, solaris, netbsd) (openbsd): Likewise * config.h.in: Regenerate. * configure: Regenerate. * include/c_global/ctime (timespec, timespec_get): Add to namespace std for C++17 and up. From-SVN: r268879
2019-01-07Fix build for systems without POSIX truncateJonathan Wakely1-0/+3
Older versions of newlib do not provide truncate so add a configure check for it, and provide a fallback definition. There were also some missing exports in the linker script, which went unnoticed because there are no tests for some functions. A new link-only test checks that every filesystem operation function is defined by the library. * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for truncate. * config.h.in: Regenerate. * config/abi/pre/gnu.ver: Order patterns for filesystem operations alphabetically and add missing entries for copy_symlink, hard_link_count, rename, and resize_file. * configure: Regenerate. * src/c++17/fs_ops.cc (resize_file): Remove #if so posix::truncate is used unconditionally. * src/filesystem/ops-common.h (__gnu_posix::truncate) [!_GLIBCXX_HAVE_TRUNCATE]: Provide fallback definition that only supports truncating to zero length. * testsuite/27_io/filesystem/operations/all.cc: New test. * testsuite/27_io/filesystem/operations/resize_file.cc: New test. From-SVN: r267647
2019-01-06PR libstdc++/86756 Move rest of std::filesystem to libstdc++.soJonathan Wakely1-0/+6
Move std::filesystem directory iterators and operations from libstdc++fs.a to main libstdc++ library. These components have many dependencies on OS support, which is not available on all targets. Some additional autoconf checks and conditional compilation is needed to ensure the files will build for all targets. Previously this code was not compiled without --enable-libstdcxx-filesystem-ts but the C++17 components should be available for all hosted builds. The tests for these components no longer need to link to libstdc++fs.a, but are not expected to pass on all targets. To avoid numerous failures on targets which are not expected to pass the tests (due to missing OS functionality) leave the dg-require-filesystem-ts directives in place for now. This will ensure the tests only run for builds where the filesystem-ts library is built, which presumably means some level of OS support is present. PR libstdc++/86756 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for utime and lstat and define _GLIBCXX_USE_UTIME and _GLIBCXX_USE_LSTAT. * config.h.in: Regenerate. * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export symbols for remaining std::filesystem types and functions. * configure: Regenerate. * src/c++17/Makefile.am: Add C++17 filesystem sources. * src/c++17/Makefile.in: Regenerate. * src/c++17/cow-fs_dir.cc: Move src/filesystem/cow-std-dir.cc to here, and change name of included file. * src/c++17/cow-fs_ops.cc: Move src/filesystem/cow-std-ops.cc to here, and change name of included file. * src/c++17/fs_dir.cc: Move src/filesystem/std-dir.cc to here. Change path to dir-common.h. * src/c++17/fs_ops.cc: Move src/filesystem/std-ops.cc to here. Change path to ops-common.h. Disable -Wunused-parameter warnings. (internal_file_clock): Define unconditionally. [!_GLIBCXX_HAVE_SYS_STAT_H] (internal_file_clock::from_stat): Do not define. (do_copy_file, do_space): Move definitions to ops.common.h. (copy, file_size, hard_link_count, last_write_time, space): Only perform operation when _GLIBCXX_HAVE_SYS_STAT_H is defined, otherwise report an error. (last_write_time, read_symlink): Remove unused attributes from parameters. * src/filesystem/Makefile.am: Remove C++17 filesystem sources. * src/filesystem/Makefile.in: Regenerate. * src/filesystem/cow-std-dir.cc: Move to src/c++17/cow-fs_dir.cc. * src/filesystem/cow-std-ops.cc: Move to src/c++17/cow-fs_ops.cc. * src/filesystem/std-dir.cc: Move to src/c++17/fs_dir.cc. * src/filesystem/std-ops.cc: Move to src/c++17/fs_ops.cc. * src/filesystem/dir-common.h [!_GLIBCXX_HAVE_DIRENT_H]: Define dummy types and functions instead of using #error. * src/filesystem/dir.cc [!_GLIBCXX_HAVE_DIRENT_H]: Use #error. * src/filesystem/ops-common.h [!_GLIBCXX_USE_LSTAT] (lstat): Define in terms of stat. [!_GLIBCXX_HAVE_UNISTD_H]: Define dummy types and functions. (do_copy_file, do_space): Move definitions here from std-ops.cc. * src/filesystem/ops.cc: Adjust calls to do_copy_file and do_space to account for new namespace. * testsuite/27_io/filesystem/directory_entry/86597.cc: Remove -lstdc++fs from dg-options. * testsuite/27_io/filesystem/directory_entry/lwg3171.cc: Likewise. * testsuite/27_io/filesystem/file_status/1.cc: Likewise. * testsuite/27_io/filesystem/filesystem_error/cons.cc: Likewise. * testsuite/27_io/filesystem/filesystem_error/copy.cc: Likewise. * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Likewise. * testsuite/27_io/filesystem/iterators/pop.cc: Likewise. * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc: Likewise. * testsuite/27_io/filesystem/operations/absolute.cc: Likewise. * testsuite/27_io/filesystem/operations/canonical.cc: Likewise. * testsuite/27_io/filesystem/operations/copy.cc: Likewise. * testsuite/27_io/filesystem/operations/copy_file.cc: Likewise. * testsuite/27_io/filesystem/operations/create_directories.cc: Likewise. * testsuite/27_io/filesystem/operations/create_directory.cc: Likewise. * testsuite/27_io/filesystem/operations/create_symlink.cc: Likewise. * testsuite/27_io/filesystem/operations/current_path.cc: Likewise. * testsuite/27_io/filesystem/operations/equivalent.cc: Likewise. * testsuite/27_io/filesystem/operations/exists.cc: Likewise. * testsuite/27_io/filesystem/operations/file_size.cc: Likewise. * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise. * testsuite/27_io/filesystem/operations/last_write_time.cc: Likewise. * testsuite/27_io/filesystem/operations/permissions.cc: Likewise. * testsuite/27_io/filesystem/operations/proximate.cc: Likewise. * testsuite/27_io/filesystem/operations/read_symlink.cc: Likewise. * testsuite/27_io/filesystem/operations/relative.cc: Likewise. * testsuite/27_io/filesystem/operations/remove.cc: Likewise. * testsuite/27_io/filesystem/operations/remove_all.cc: Likewise. * testsuite/27_io/filesystem/operations/space.cc: Likewise. * testsuite/27_io/filesystem/operations/status.cc: Likewise. * testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise. * testsuite/27_io/filesystem/operations/temp_directory_path.cc: Likewise. * testsuite/27_io/filesystem/operations/weakly_canonical.cc: Likewise. From-SVN: r267616
2018-11-27PR libstdc++/67843 set shared_ptr lock policy at build-timeJonathan Wakely1-0/+3
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
2018-10-16Use autoconf to check for features needed by Networking TSJonathan Wakely1-0/+18
* 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
2018-10-16Define _GLIBCXX_USE_DEV_RANDOM as replacement for _GLIBCXX_USE_RANDOM_TR1Jonathan Wakely1-0/+4
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
2018-06-18Fix bootstrap failure for bare metal due to autoconf link testsJonathan Wakely1-3/+3
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
2018-05-31PR libstdc++/78870 support std::filesystem on WindowsJonathan Wakely1-0/+9
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
2018-05-21Add support for opening file streams from wide character stringsJonathan Wakely1-0/+3
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
2018-05-01PR libstdc++/84654 Disable __float128 specializations for -mno-float128Tulio Magno Quites Machado Filho1-3/+0
2018-05-01 Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com> PR libstdc++/84654 * acinclude.m4: Set ENABLE_FLOAT128 instead of _GLIBCXX_USE_FLOAT128. * config.h.in: Remove references to _GLIBCXX_USE_FLOAT128. * configure: Regenerate. * include/Makefile.am: Replace the value of _GLIBCXX_USE_FLOAT128 based on ENABLE_FLOAT128. * include/Makefile.in: Regenerate. * include/bits/c++config: Define _GLIBCXX_USE_FLOAT128. [!defined(__FLOAT128__) && !defined(__SIZEOF_FLOAT128__)]: Undefine _GLIBCXX_USE_FLOAT128. From-SVN: r259813
2018-01-18configure.ac (AC_CHECK_HEADERS): Add linux/types.h.Uros Bizjak1-0/+3
* 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
2017-05-23PR libstdc++/67578 Implement non-trivial std::random_device::entropyXi Ruoyao1-0/+3
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
2017-03-15Fix typo in config.h.in commentJonathan Wakely1-1/+1
* acinclude.m4 (GLIBCXX_CHECK_S_ISREG_OR_S_IFREG): Fix typo in comment. * config.h.in: Regenerate. * configure: Regenerate. * doc/Makefile.in: Regenerate. From-SVN: r246165
2017-01-09PR79017 workaround incomplete C99 math on darwinJonathan Wakely1-0/+3
PR libstdc++/79017 * acinclude.m4 (GLIBCXX_CHECK_C99_TR1): Check for llrint and llround functions separately on darwin and if they're missing define _GLIBCXX_NO_C99_ROUNDING_FUNCS. * config.h.in: Regenerate. * configure: Regenerate. * include/c_global/cmath [_GLIBCXX_NO_C99_ROUNDING_FUNCS] (llrint) (llrintf, llrintl, llround, llroundf, llroundl): Do not define. From-SVN: r244231
2017-01-04PR78968 add configure check for __cxa_thread_atexit in libcJonathan Wakely1-0/+3
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
2017-01-04Support exception propagation without lock-free atomic intPauli Nieminen1-0/+3
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
2016-11-21Don't define libstdc++-internal macros in Solaris 10+ <math.h>Rainer Orth1-2/+7
libstdc++-v3: * acinclude.m4 (GLIBCXX_CHECK_MATH11_PROTO): Update comments. (__CORRECT_ISO_CPP11_MATH_H_PROTO): Rename to ... (__CORRECT_ISO_CPP11_MATH_H_PROTO_FP): ... this. Add test for C++11 <math.h> integral overloads. * configure: Regenerate. * config.h.in: Regenerate. * include/c_global/cmath [__cplusplus >= 201103L]: Reflect __CORRECT_ISO_CPP11_MATH_H_PROTO to __CORRECT_ISO_CPP11_MATH_H_PROTO_FP rename. * include/c_global/cmath [_GLIBCXX_USE_C99_MATH && !_GLIBCXX_USE_C99_FP_MACROS_DYNAMIC && __cplusplus >= 201103L] (std::fpclassify): Wrap in !__CORRECT_ISO_CPP11_MATH_H_PROTO_INT. (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. [__cplusplus >= 201103L && _GLIBCXX_USE_C99_MATH_TR1] (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 && __cplusplus >= 201103L]: Reflect __CORRECT_ISO_CPP11_MATH_H_PROTO to __CORRECT_ISO_CPP11_MATH_H_PROTO_FP rename. fixincludes: * inclhack.def (solaris_math_12): New fix. (hpux11_fabsf): Replace bypass by *-hp-hpux11* mach selector. * fixincl.x: Regenerate. * tests/base/math.h [SOLARIS_MATH_12_CHECK]: New test. From-SVN: r242671
2016-09-30libstdc++/77795 Only declare ::gets for C++98 and C++11Jonathan Wakely1-1/+1
PR libstdc++/77795 * acinclude.m4 (GLIBCXX_CHECK_STDIO_PROTO): Use -std=gnu++11 to check for gets. * config.h.in: Regenerate. * configure: Regenerate. * include/c_global/cstdio [!_GLIBCXX_HAVE_GETS] (gets): Only declare for C++98 and C++11. * include/c_std/cstdio [!_GLIBCXX_HAVE_GETS] (gets): Likewise. * testsuite/27_io/headers/cstdio/functions_neg.cc: New test. From-SVN: r240672
2016-09-09Implement P0035R4, C++17 new of over-aligned types.Jason Merrill1-0/+12
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
2016-05-25Fix configure test for sendfile()Jonathan Wakely1-1/+1
* acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Fix test for sendfile. * configure: Regenerate. * config.h.in: Regenerate. From-SVN: r236730
2016-02-04Test for C99 stdlib.h functions with -std=c++98Jonathan Wakely1-0/+4
PR libstdc++/69626 * acinclude.m4 (GLIBCXX_ENABLE_C99): Check C99 stdlib.h functions with -std=c++98 and define _GLIBCXX98_USE_C99_STDLIB. * config.h.in: Regenerate. * configure: Regenerate. * testsuite/21_strings/c_strings/char/69626.cc: New. From-SVN: r233161
2016-01-28re PR libstdc++/69450 (libstdc++-v3/include/math.h:66:1 2: error: 'constexpr ↵John David Anglin1-2/+5
bool std::isnan(double)' conflicts with a previous declaration) PR libstdc++/69450 * acinclude.m4 (GLIBCXX_CHECK_MATH11_PROTO): Split check for obsolete isinf and isnan functions into two independent checks. Check on hpux. * config.h.in: Regenerate. * configure: Regenerate. * include/c_global/cmath (isinf(double), isnan(double)): Use _GLIBCXX_HAVE_OBSOLETE_ISINF and _GLIBCXX_HAVE_OBSOLETE_ISNAN, respectively. From-SVN: r232925
2016-01-15libstdc++: Make certain exceptions transaction_safe.Torvald Riegel1-0/+3
From-SVN: r232454
2016-01-13Use ::isinf and ::isnan if libc defines themJonathan Wakely1-0/+3
PR libstdc++/48891 * acinclude.m4 (GLIBCXX_CHECK_MATH11_PROTO): Check for obsolete isinf and isnan functions. * config.h.in: Regenerate. * configure: Regenerate. * include/c_global/cmath (isinf(double), isnan(double)) [_GLIBCXX_HAVE_OBSOLETE_ISINF_ISNAN]: Import via using-directive. * testsuite/26_numerics/headers/cmath/48891.cc: New. From-SVN: r232327
2015-11-24Handle C++11 <math.h> overloads on Solaris 12Rainer Orth1-0/+5
* 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
2015-11-13More fine-grained autoconf checks for C99 libraryJennifer Yao1-9/+38
2015-11-13 Jennifer Yao <jenny.hyphen.fa@gmail.com> Jonathan Wakely <jwakely@redhat.com> PR libstdc++/58393 PR libstdc++/61580 * acinclude.m4 (GLIBCXX_ENABLE_C99): Perform tests twice, with -std=c++11 as well as -std=c++98, and define separate macros for each. Cache the results of checking for complex math and wide character functions. Reformat for readability. * config.h.in: Regenerate. * include/bits/c++config: Define _GLIBCXX_USE_C99_XXX macros to either _GLIBCXX98_USE_C99_XXX or _GLIBCXX11_USE_C99_XXX according to language standard in use. * config/locale/dragonfly/c_locale.h (std::__convert_from_v): Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDIO. * config/locale/generic/c_locale.h (std::__convert_from_v): Likewise. * config/locale/gnu/c_locale.h (std::__convert_from_v): Likewise. * config/os/bsd/dragonfly/os_defines.h: Define _GLIBCXX_USE_C99_STDIO, _GLIBCXX_USE_C99_STDLIB, and _GLIBCXX_USE_C99_WCHAR. * configure: Regenerate. * include/bits/basic_string.h: Make numeric conversion functions depend on _GLIBCXX_USE_C99_STDIO, _GLIBCXX_USE_C99_STDLIB, or _GLIBCXX_USE_C99_WCHAR, instead of _GLIBCXX_USE_C99. * include/ext/vstring.h: Likewise. * include/bits/locale_facets.tcc (std::num_put::_M_insert_float): Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDIO. * include/bits/locale_facets_nonio.tcc (std::money_put::do_put): Likewise. * include/c_compatibility/math.h: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_MATH. * include/c_compatibility/wchar.h: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_WCHAR. * include/c_global/cstdio: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDIO. * include/c_global/cstdlib: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDLIB. * include/c_global/cwchar: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_WCHAR. * include/c_std/cstdio: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDIO. * include/c_std/cstdlib: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDLIB. * include/c_std/cwchar: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_WCHAR. * include/tr1/cstdio: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDIO. * include/tr1/cstdlib: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDLIB. * include/tr1/cwchar: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_WCHAR. * include/tr1/stdlib.h: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDLIB. * src/c++98/locale_facets.cc (std::__num_base::_S_format_float): Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDIO. * testsuite/18_support/exception_ptr/60612-terminate.cc: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDLIB. * testsuite/18_support/exception_ptr/60612-unexpected.cc: Likewise. * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stod.cc (test01): Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_WCHAR. * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/ stof.cc: Likewise. * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/ stoi.cc: Likewise. * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/ stol.cc: Likewise. * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/ stold.cc: Likewise. * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/ stoll.cc: Likewise. * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/ stoul.cc: Likewise. * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/ stoull.cc: Likewise. * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/ to_wstring.cc: Likewise. * testsuite/26_numerics/headers/cstdlib/13943.cc: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDLIB. * testsuite/26_numerics/headers/cstdlib/types_std_c++0x.cc: Likewise. * testsuite/lib/libstdc++.exp (check_v3_target_string_conversions): Change preprocessor #if conditional so that it uses _GLIBCXX_USE_C99_STDIO, _GLIBCXX_USE_C99_STDLIB, and _GLIBCXX_USE_C99_WCHAR, instead of _GLIBCXX_USE_C99. * testsuite/tr1/8_c_compatibility/cmath/templates.cc: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_MATH. * testsuite/tr1/8_c_compatibility/cstdio/functions.cc: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDIO. * testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDLIB. * testsuite/tr1/8_c_compatibility/cstdlib/types_std_tr1.cc: Likewise. * testsuite/tr1/8_c_compatibility/cwchar/functions.cc: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_WCHAR. * testsuite/util/testsuite_fs.h: Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDIO. Co-Authored-By: Jonathan Wakely <jwakely@redhat.com> From-SVN: r230324
2015-09-23Fix semantics of Filesystem TS directory iteratorsJonathan Wakely1-3/+3
[class.directory_iterator] p4 and [directory_iterator.members] p4 require that only the default constructor and ignored permission denied errors can create the end iterator. * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Remove _GLIBCXX_ prefix from HAVE_STRUCT_DIRENT_D_TYPE. * config.h.in: Regenerate. * configure: Regenerate. * include/experimental/fs_dir.h (operator==, operator==): Use owner_before instead of pointer equality. (directory_iterator(std::shared_ptr<_Dir>, error_code*)): Remove. * src/filesystem/dir.cc (ErrorCode): Remove. (_Dir::advance): Change ErrorCode parameter to error_code*, add directory_options parameter and check it on error. (opendir): Rename to open_dir to avoid clashing with macro. Change ErrorCode parameter to error_code*. (make_shared_dir): Remove. (native_readdir) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Don't set errno. (directory_iterator(std::shared_ptr<_Dir>, error_code*)): Remove. (directory_iterator(const path&, directory_options, error_code*)): Pass options to _Dir::advance and create non-end iterator on error. (recursive_directory_iterator(const path&, directory_options, error_code*)): Clear error_code on ignored error, create non-end iterator otherwise. (recursive_directory_iterator::increment): Pass _M_options to _Dir::advance. (recursive_directory_iterator::pop): Likewise. * testsuite/experimental/filesystem/iterators/directory_iterator.cc: New. * testsuite/experimental/filesystem/iterators/ recursive_directory_iterator.cc: New. From-SVN: r228042
2015-09-16Implement filesystem::canonical() without realpathJonathan Wakely1-1/+1
PR libstdc++/67173 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check _XOPEN_VERSION and PATH_MAX for _GLIBCXX_USE_REALPATH. * config.h.in: Regenerate. * configure: Regenerate. * src/filesystem/ops.cc: (canonical) [!_GLIBCXX_USE_REALPATH]: Add alternative implementation. * testsuite/experimental/filesystem/operations/canonical.cc: New. * testsuite/experimental/filesystem/operations/exists.cc: Add more tests. * testsuite/experimental/filesystem/operations/absolute.cc: Add test variables. * testsuite/experimental/filesystem/operations/copy.cc: Likewise. * testsuite/experimental/filesystem/operations/current_path.cc: Likewise. * testsuite/experimental/filesystem/operations/file_size.cc: Likewise. * testsuite/experimental/filesystem/operations/status.cc: Likewise. * testsuite/experimental/filesystem/operations/temp_directory_path.cc: Likewise. From-SVN: r227836
2015-09-04Add C++11 header <cuchar>.Edward Smith-Rowland1-0/+7
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
2015-05-14re PR libstdc++/66011 (call to '__open_missing_mode' declared with attribute ↵Jonathan Wakely1-0/+6
error) PR libstdc++/66011 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for fchmod and sendfile. * config.h.in: Regenerate. * configure: Regenerate. * src/filesystem/ops.cc (do_copy_file): Fix arguments to open(). Do not return after copying contents. Use fchmod, fchmodat, and sendfile when available. (current_path, permissions, space): Use errno not return value. From-SVN: r223196
2015-05-14re PR libstdc++/66018 (opendir configure test not working when ↵Jonathan Wakely1-16/+4
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
2015-05-13sjlj.m4: New file.Eric Botcazou1-3/+0
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
2015-05-01acinclude.m4 (GLIBCXX_ENABLE_FILESYSTEM_TS): Disable when <dirent.h> is not ↵Jonathan Wakely1-0/+6
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
2015-04-30Implement N4100 File System TSJonathan Wakely1-0/+34
* 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
2015-03-18acinclude.m4 (GLIBCXX_CHECK_GTHREADS): Check for pthread_rwlock_t.Jonathan Wakely1-0/+3
2015-03-18 Jonathan Wakely <jwakely@redhat.com> Torvald Riegel <triegel@redhat.com> * acinclude.m4 (GLIBCXX_CHECK_GTHREADS): Check for pthread_rwlock_t. * config.h.in: Regenerate. * configure: Regenerate. * include/std/shared_mutex: Check _GLIBCXX_USE_PTHREAD_RWLOCK_T. (shared_timed_mutex::_M_rwlock): Use PTHREAD_RWLOCK_INITIALIZER. (shared_timed_mutex::lock_shared()): Retry on EAGAIN. (shared_timed_mutex::try_lock_shared_until()): Retry on EAGAIN and EDEADLK. Co-Authored-By: Torvald Riegel <triegel@redhat.com> From-SVN: r221484
2014-01-23acinclude.m4 (GLIBCXX_CHECK_TMPNAM): New check for tmpnam function.Bernhard Reutner-Fischer1-0/+3
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
2013-08-06Commit the vtable verification feature.Caroline Tice1-3/+4
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
2013-05-24chrono.cc: If _GLIBCXX_USE_CLOCK_GETTIME_SYSCALL, include unistd.h and ↵Jakub Jelinek1-0/+3
sys/syscall.h. * src/c++11/chrono.cc: If _GLIBCXX_USE_CLOCK_GETTIME_SYSCALL, include unistd.h and sys/syscall.h. If _GLIBCXX_COMPATIBILITY_CXX0X, don't define system_clock::is_steady, system_clock::now() and steady_clock::is_steady. (std::chrono::system_clock::now()): If _GLIBCXX_USE_CLOCK_GETTIME_SYSCALL, call syscall (SYS_clock_gettime, ...) instead of clock_gettime (...). (std::chrono::system_clock::now()): Likewise. Add weak attribute if _GLIBCXX_COMPATIBILITY_CXX0X and compatibility-chrono.cc will be non-empty. * src/Makefile.am (cxx11_sources): Add compatibility-chrono.cc. (compatibility-chrono.lo, compatibility-chrono.o): New goals. * src/c++11/compatibility-chrono.cc: New file. * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): On linux*, check for syscall (SYS_clock_gettime, CLOCK_MONOTONIC, &tp). * testsuite/util/testsuite_abi.cc (check_version): Add GLIBCXX_3.4.20 version and make it the latest. * config/abi/pre/gnu.ver (_ZNSt6chrono12steady_clock3nowEv): Export also @@GLIBCXX_3.4.19. Move all symbols so far added for GCC 4.9 to @@GLIBCXX_3.4.20 instead. * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Regenerated. * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Regenerated. * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Regenerated. * config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt: Regenerated. * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Regenerated. * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Regenerated. * config/abi/post/powerpc-linux-gnu/baseline_symbols.txt: Regenerated. * config/abi/post/s390-linux-gnu/baseline_symbols.txt: Regenerated. * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Regenerated. * config/abi/post/solaris2.10/baseline_symbols.txt: Regenerated. * config/abi/post/solaris2.10/amd64/baseline_symbols.txt: Regenerated. * config/abi/post/solaris2.10/sparcv9/baseline_symbols.txt: Regenerated. * config/abi/post/solaris2.9/baseline_symbols.txt: Regenerated. * config/abi/post/solaris2.9/sparcv9/baseline_symbols.txt: Regenerated. * config.h.in: Regenerated. * src/Makefile.in: Regenerated. * configure: Regenerated. From-SVN: r199307
2013-04-09configure, [...]: Rebuild.Tom Tromey1-1/+1
* 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
2013-03-15unwind-cxx.h: Include sys/sdt.h if detected.Tom Tromey1-0/+3
* 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
2013-02-25configure.ac: Check for __cxa_thread_atexit_impl.Jason Merrill1-0/+3
* 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
2013-02-11linkage.m4 (GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE): New.Jason Merrill1-0/+6
* linkage.m4 (GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE): New. (GLIBCXX_CHECK_STDLIB_SUPPORT): Check for atexit and at_quick_exit. * include/c_std/cstdlib: Add atexit and at_quick_exit. * include/c_global/cstdlib: Add atexit and at_quick_exit. * testsuite/18_support/quick_exit/quick_exit.cc: New. From-SVN: r195948
2012-12-20re PR libstdc++/55741 (bootstrap fails in libstdc++-v3/src/c++11/thread.cc)Jonathan Wakely1-0/+3
PR libstdc++/55741 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Check for Sleep. * config.h.in: Regenerate. * configure: Regenerate. * src/c++11/thread.cc (__sleep_for): Use Sleep if available. From-SVN: r194635
2012-11-23re PR libstdc++/52680 (std::this_thread::sleep_for #ifdef'd out by ↵Jonathan Wakely1-0/+6
_GLIBCXX_USE_NANOSLEEP) PR libstdc++/52680 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Check for usleep and sleep if nanosleep is not available. Bump libtool revision. * config.h.in: Regenerate. * configure: Likewise. * config/abi/pre/gnu.ver (GLIBCXX_3.4.18): Add __sleep_for. * include/std/thread (this_thread::__sleep_for): Add. (this_thread::yield, this_thread::sleep_until, this_thread::sleep_for): Declare unconditionally. * src/c++11/thread.cc (this_thread::__sleep_for): Define. * testsuite/lib/libstdc++.exp (check_v3_target_nanosleep): Rename to check_v3_target_sleep. * testsuite/lib/dg-options.exp (dg-require-nanosleep): Rename to dg-require-sleep. * testsuite/30_threads/condition_variable_any/53830.cc: Update. * testsuite/30_threads/this_thread/2.cc: Likewise. * testsuite/30_threads/this_thread/3.cc: Likewise. * testsuite/30_threads/this_thread/4.cc: Likewise. * testsuite/30_threads/async/54297.cc: Likewise. From-SVN: r193769
2012-09-10re PR libstdc++/43852 (Embedded systems friendly libstdc++)Sebastian Huber1-0/+3
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
2012-09-09re PR bootstrap/54419 (Compiling libstdc++-v3/src/c++11/random.cc fails on ↵Ulrich Drepper1-0/+3
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
2012-03-14Remove obsolete Solaris 8 supportRainer Orth1-15/+0
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
2012-03-02re PR libstdc++/51785 (gets not anymore declared)Benjamin Kosnik1-0/+3
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
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