libatomic/ChangeLog: * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * configure: Regenerate. * testsuite/Makefile.in: Regenerate. libcc1/ChangeLog: * Makefile.in: Regenerate. * aclocal.m4: Regenerate. libffi/ChangeLog: * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * configure: Regenerate. * include/Makefile.in: Regenerate. * man/Makefile.in: Regenerate. * testsuite/Makefile.in: Regenerate. libgcobol/ChangeLog: * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * configure: Regenerate. libgfortran/ChangeLog: * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * configure: Regenerate. libgm2/ChangeLog: * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * configure: Regenerate. * libm2cor/Makefile.in: Regenerate. * libm2iso/Makefile.in: Regenerate. * libm2log/Makefile.in: Regenerate. * libm2min/Makefile.in: Regenerate. * libm2pim/Makefile.in: Regenerate. libgomp/ChangeLog: * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * configure: Regenerate. * testsuite/Makefile.in: Regenerate. libgrust/ChangeLog: * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * configure: Regenerate. * libformat_parser/Makefile.in: Regenerate. * libproc_macro_internal/Makefile.in: Regenerate. libitm/ChangeLog: * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * configure: Regenerate. * testsuite/Makefile.in: Regenerate. libobjc/ChangeLog: * aclocal.m4: Regenerate. * configure: Regenerate. libphobos/ChangeLog: * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * configure: Regenerate. * libdruntime/Makefile.in: Regenerate. * src/Makefile.in: Regenerate. * testsuite/Makefile.in: Regenerate. libquadmath/ChangeLog: * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * configure: Regenerate. libsanitizer/ChangeLog: * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * asan/Makefile.in: Regenerate. * configure: Regenerate. * hwasan/Makefile.in: Regenerate. * interception/Makefile.in: Regenerate. * libbacktrace/Makefile.in: Regenerate. * lsan/Makefile.in: Regenerate. * sanitizer_common/Makefile.in: Regenerate. * tsan/Makefile.in: Regenerate. * ubsan/Makefile.in: Regenerate. libssp/ChangeLog: * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * configure: Regenerate. libstdc++-v3/ChangeLog: * Makefile.in: Regenerate. * aclocal.m4: 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++17/Makefile.in: Regenerate. * src/c++20/Makefile.in: Regenerate. * src/c++23/Makefile.in: Regenerate. * src/c++26/Makefile.in: Regenerate. * src/c++98/Makefile.in: Regenerate. * src/experimental/Makefile.in: Regenerate. * src/filesystem/Makefile.in: Regenerate. * src/libbacktrace/Makefile.in: Regenerate. * testsuite/Makefile.in: Regenerate. libvtv/ChangeLog: * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * configure: Regenerate. * testsuite/Makefile.in: Regenerate. lto-plugin/ChangeLog: * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * configure: Regenerate.
Several of the 19_diagnostics/stacktrace tests FAIL on Solaris/SPARC (32 and 64-bit), Solaris/x86 (32-bit only), and several other targets: FAIL: 19_diagnostics/stacktrace/current.cc -std=gnu++23 execution test FAIL: 19_diagnostics/stacktrace/current.cc -std=gnu++26 execution test FAIL: 19_diagnostics/stacktrace/entry.cc -std=gnu++23 execution test FAIL: 19_diagnostics/stacktrace/entry.cc -std=gnu++26 execution test FAIL: 19_diagnostics/stacktrace/output.cc -std=gnu++23 execution test FAIL: 19_diagnostics/stacktrace/output.cc -std=gnu++26 execution test FAIL: 19_diagnostics/stacktrace/stacktrace.cc -std=gnu++23 execution test FAIL: 19_diagnostics/stacktrace/stacktrace.cc -std=gnu++26 execution test As it turns out, both the copy of libbacktrace in libstdc++ and the testcases proper need to compiled with -funwind-tables, as is done for libbacktrace itself. This isn't an issue on Linux/x86_64 and Solaris/amd64 since 64-bit x86 always defaults to -funwind-tables. 32-bit x86 does, too, when -fomit-frame-pointer is enabled as on Linux/i686, but unlike Solaris/i386. So this patch always enables the option both for the libbacktrace copy and the testcases. Tested on i386-pc-solaris2.11, sparc-sun-solaris2.11, and x86_64-pc-linux-gnu. 2024-05-23 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> libstdc++-v3: PR libstdc++/111641 * src/libbacktrace/Makefile.am (AM_CFLAGS): Add -funwind-tables. * src/libbacktrace/Makefile.in: Regenerate. * testsuite/19_diagnostics/stacktrace/current.cc (dg-options): Add -funwind-tables. * testsuite/19_diagnostics/stacktrace/entry.cc: Likewise. * testsuite/19_diagnostics/stacktrace/hash.cc: Likewise. * testsuite/19_diagnostics/stacktrace/output.cc: Likewise. * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Likewise.
In order for std::stacktrace to be used in a shared library, the libbacktrace symbols need to be built with -fPIC. Add the libtool -prefer-pic flag to the commands in src/libbacktrace/Makefile so that the archive contains PIC objects. libstdc++-v3/ChangeLog: PR libstdc++/111936 * src/libbacktrace/Makefile.am: Add -prefer-pic to libtool compile commands. * src/libbacktrace/Makefile.in: Regenerate.
This consolidates the three static archives for extensions into one, so that -lstdc++exp can be used to provide the definitions of all unstable library features. The libstdc++_libbacktrace.a archive is now just a "noinst" convenience library that is only used during the build, not installed. Its contents are added to libstdc++exp.a, along with the new non-inline definitions of std::stacktrace symbols. The libstdc++fs.a archive is still installed, but its contents are duplicated in libstdc++exp.a now. This means -lstdc++exp can be used instead of -lstdc++fs. For targets using the GNU linker we should consider replacing libstdc++fs.a with a linker script that does INPUT(libstdc++exp.a). The tests for <experimental/filesystem> could be changed to use -lstdc++exp instead of -lstdc++fs, which would allow removing src/filesystem/.libs from the LDFLAGS in scripts/testsuite_flags.in, but that can be done at a later date. libstdc++-v3/ChangeLog: * acinclude.m4 (GLIBCXX_CONFIGURE): Add c++23 directory. * configure: Regenerate. * doc/html/manual/*: Regenerate. * doc/xml/manual/using.xml: Update documentation on linking. * include/std/stacktrace: Remove declarations of libbacktrace APIs. (stacktrace_entry::_S_err_handler, stacktrace_entry::_S_init): Remove. (stacktrace_entry::_Info): New class. (stacktrace_entry::_M_get_info): Use _Info. (__stacktrace_impl): New class. (basic_stacktrace): Derive from __stacktrace_impl. (basic_stacktrace::current): Use __stacktrace_impl::_S_current. * scripts/testsuite_flags.in: Adjust LDFLAGS to find libstdc++exp instead of libstdc++_libbacktrace. * src/Makefile.am (SUBDIRS): Add c++23 directory. * src/Makefile.in: Regenerate. * src/c++20/Makefile.am: Fix comment. * src/c++20/Makefile.in: Regenerate. * src/c++23/Makefile.am: New file. * src/c++23/Makefile.in: New file. * src/c++23/stacktrace.cc: New file with definitions of stacktrace_entry::_Info and __stacktrace_impl members. * src/experimental/Makefile.am: Use LIBADD to include other libraries. * src/experimental/Makefile.in: Regenerate. * src/libbacktrace/Makefile.am: Use noinst_LTLIBRARIES. * src/libbacktrace/Makefile.in: Regenerate. * testsuite/19_diagnostics/stacktrace/current.cc: Adjust dg-options to use -lstdc++exp. * testsuite/19_diagnostics/stacktrace/entry.cc: Likewise. * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Likewise. * testsuite/23_containers/vector/debug/assign4_backtrace_neg.cc: Likewise.
The -Werror flag should depend on the --enable-werror configure option. libstdc++-v3/ChangeLog: * src/libbacktrace/Makefile.am: Remove -Werror. * src/libbacktrace/Makefile.in: Regenerate.
libbacktrace/ChangeLog: * Makefile.in: Regenerate. libgomp/ChangeLog: * Makefile.in: Regenerate. * configure: Regenerate. libphobos/ChangeLog: * Makefile.in: Regenerate. * libdruntime/Makefile.in: Regenerate. libstdc++-v3/ChangeLog: * src/libbacktrace/Makefile.in: Regenerate.