36100e0e95
This attempts to implement a partial workaround for the GDB bug https://sourceware.org/bugzilla/show_bug.cgi?id=28856 which causes GDB to crash when printing a frame with a std::error_code argument. By recognising the known error categories defined in the library and hardcoding their names we do not need to call cat->name() on the category. This has the additional benefit of also working when debugging a core file rather than a running process. For those known categories we can also cast the int value to the corresponding error code enum (e.g. future_errc) so that we show an enumerator instead of just an integer. For program-defined categories we just use the name of the dynamic type to identify the category, and print the value as an integer. Once the GDB bug is fixed and the virtual name() function can be called safely, that would be preferable. For now it's better to have an imperfect printer that doesn't crash GDB. This rewritten StdErrorCodePrinter needs gdb.Value.dynamic_type, so is only registered if that is supported, which means GDB 7.7 and later. libstdc++-v3/ChangeLog: * python/libstdcxx/v6/printers.py (StdErrorCodePrinter): Replace code that call cat->name() on std::error_category objects. Identify known categories by symbol name and use a hardcoded name. Print error code values as enumerators where appopriate. * testsuite/libstdc++-prettyprinters/cxx11.cc: Adjust expected name of custom category. Check io_errc and future_errc errors. |
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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.