GCC modified for the FreeChainXenon project
4099d6501e
This change tightens and documents the use of libc_internal, then strengthens the VxWorks crtstuff objects for the support of shared libraries. In particular: - Define __dso_handle, which libstdc++.so requires, - Provide _init and _fini functions to run through the init/fini arrays for shared libs in configurations which HAVE_INITFINI_ARRAY_SUPPORT. The init/fini functions are provided by libc_internal.a for static links but with slightly different names and we don't want to risk dragging other libc_internal contents in the closure accidentally so make sure we don't link with it. As for the !vxworks crtstuff, the new shared libs specific bits are conditioned by a CRTSTUFFS_O macro, for which we provide new Makefile fragment. The bits to actually use the fragment and the shared objects will be added by a forthcoming change, as part of a more general configury update for shared libs. The change also adds guards the eh table registration code in vxcrtstuff so the objects can be used for either init/fini or eh tables independently. 2021-12-07 Fred Konrad <konrad@adacore.com> Olivier Hainque <hainque@adacore.com> gcc/ * config/vxworks.h (VXWORKS_BASE_LIBS_RTP): Guard -lc_internal on !shared+!non-static and document. (VXWORKS_LIB_SPEC): Remove the bits intended to drag the init/fini functions from libc_internal in the shared lib case. (VX_CRTBEGIN_SPEC/VX_CRTEND_SPEC): Use vxcrtstuff objects also in configurations with shared lib and INITFINI_ARRAY support. libgcc/ * config/t-vxcrtstuffS: New Makefile fragment. * config/vxcrtstuff.c: Provide __dso_handle. Provide _init/_fini functions for INITFINI_ARRAY support in shared libs and guard the definition of eh table registration functions on conditions indicating they are needed. |
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| c++tools | ||
| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
| libcc1 | ||
| libcody | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
| libgomp | ||
| libiberty | ||
| libitm | ||
| libobjc | ||
| liboffloadmic | ||
| libphobos | ||
| libquadmath | ||
| libsanitizer | ||
| libssp | ||
| libstdc++-v3 | ||
| libvtv | ||
| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| .dir-locals.el | ||
| .gitattributes | ||
| .gitignore | ||
| ABOUT-NLS | ||
| ar-lib | ||
| ChangeLog | ||
| ChangeLog.jit | ||
| ChangeLog.tree-ssa | ||
| compile | ||
| config-ml.in | ||
| config.guess | ||
| config.rpath | ||
| config.sub | ||
| configure | ||
| configure.ac | ||
| COPYING | ||
| COPYING.LIB | ||
| COPYING.RUNTIME | ||
| COPYING3 | ||
| COPYING3.LIB | ||
| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
| libtool.m4 | ||
| ltgcc.m4 | ||
| ltmain.sh | ||
| ltoptions.m4 | ||
| ltsugar.m4 | ||
| ltversion.m4 | ||
| lt~obsolete.m4 | ||
| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
| Makefile.tpl | ||
| missing | ||
| mkdep | ||
| mkinstalldirs | ||
| move-if-change | ||
| multilib.am | ||
| README | ||
| symlink-tree | ||
| test-driver | ||
| ylwrap | ||
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.