e69ac02037
There is no debug info when the DECL_IGNORED_P flag is set. But sometimes we have the line info of the function decl, as in the case of on virtual thunks. So instead of no line info at all, we emit at least the location of the function decl. On the other side, there are DECL_IGNORED_P functions which do not have any source line info at all. Remove those from the debug_range info, to make it clear for the debugger that the line info for these functions is invalid. This has the effect that the debugger will not step into the function without debug info. 2021-05-06 Bernd Edlinger <bernd.edlinger@hotmail.de> PR ipa/97937 * debug.h (gcc_debug_hooks): Add set_ignored_loc function pointer. * dwarf2out.h (dw_fde_node::ignored_debug): New data item. * dbxout.c (dbx_debug_hooks, xcoff_debug_hooks): Add dummy set_ignored_loc callbacks. * debug.c (do_nothing_debug_hooks): Likewise. * vmsdbgout.c (vmsdbg_debug_hooks): Likewise. * dwarf2out.c (text_section_used, cold_text_section_used): Remove. (in_text_section_p, last_text_label, last_cold_label, switch_text_ranges, switch_cold_ranges): New data items. (dwarf2out_note_section_used): Remove. (dwarf2out_begin_prologue): Set fde->ignored_debug and in_text_section_p. (mark_ignored_debug_section): New helper function. (dwarf2out_end_epilogue, dwarf2out_switch_text_section): Call mark_ignored_debug_section. (dwarf2_debug_hooks): Use dwarf2out_set_ignored_loc. (dwarf2_lineno_debug_hooks): Use dummy for set_ignored_loc. (size_of_aranges): Adjust formula for multi-part text ranges size. (output_aranges): Output multi-part text ranges. (dwarf2out_set_ignored_loc): New callback function. (dwarf2out_finish): Output multi-part text ranges. (dwarf2out_c_finalize): Clear new data items. * final.c (final_start_function_1): Call set_ignored_loc callback. (final_scan_insn_1): Likewise. * ggc-page.c (gt_ggc_mx): New helper function. * stringpool.c (gt_pch_nx): Likewise. |
||
|---|---|---|
| c++tools | ||
| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
| libcc1 | ||
| libcody | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
| libgomp | ||
| libhsail-rt | ||
| 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.