[Bug debug/63239] DWARF does not represent C++ deleted methods
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63239
Francois-Xavier Coudert fxcoudert at gcc dot gnu.org changed:
What|Removed |Added
Status|RESOLVED|REOPENED
Last reconfirmed||2014-11-21
CC||fxcoudert at gcc dot gnu.org
Resolution|FIXED |---
Ever confirmed|0 |1
--- Comment #4 from Francois-Xavier Coudert fxcoudert at gcc dot gnu.org ---
The testcase fails on x86_64-apple-darwin14. With g++ -O -std=c++11 -g -dA
a.c, we have the following optimized tree dump:
;; Function void bar() (_Z3barv, funcdef_no=3, decl_uid=2126, cgraph_uid=3,
symbol_order=3)
void bar() ()
{
bb 2:
# DEBUG this = foo
return;
}
The assembler (see attachment) does not contain DW_AT_GNU_deleted.
[Bug debug/63239] DWARF does not represent C++ deleted methods
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63239 --- Comment #5 from Francois-Xavier Coudert fxcoudert at gcc dot gnu.org --- Created attachment 34063 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=34063action=edit Assembler generated at -O -std=c++11 -g -dA
[Bug debug/63239] DWARF does not represent C++ deleted methods
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63239 --- Comment #6 from Mark Wielaard mark at gcc dot gnu.org --- It looks like for some reason Darwin defaults to some ancient (v2) strict version of DWARF. Please try adding -gno-strict-dwarf -gdwarf-4 to gcc/testsuite/g++.dg/debug/dwarf2/deleted-member-function.C dg-options.
[Bug debug/63239] DWARF does not represent C++ deleted methods
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63239 --- Comment #7 from Jakub Jelinek jakub at gcc dot gnu.org --- (In reply to Mark Wielaard from comment #6) It looks like for some reason Darwin defaults to some ancient (v2) strict version of DWARF. Please try adding -gno-strict-dwarf -gdwarf-4 to gcc/testsuite/g++.dg/debug/dwarf2/deleted-member-function.C dg-options. The reason for that is that Darwin has a set of tools that crash or otherwise break on valid DWARF 3 or DWARF 4 or various extensions. So using -gdwarf-2 and -gstrict-dwarf by default is necessary because of badly written toolchain.
[Bug debug/63239] DWARF does not represent C++ deleted methods
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63239 --- Comment #8 from Francois-Xavier Coudert fxcoudert at gcc dot gnu.org --- (In reply to Jakub Jelinek from comment #7) So using -gdwarf-2 and -gstrict-dwarf by default is necessary because of badly written toolchain. I had tried -gdwarf-4, but didn't know about -gstrict-dwarf. Will commit the obvious patch, then.
[Bug debug/63239] DWARF does not represent C++ deleted methods
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63239 --- Comment #9 from Francois-Xavier Coudert fxcoudert at gcc dot gnu.org --- Author: fxcoudert Date: Fri Nov 21 13:27:57 2014 New Revision: 217918 URL: https://gcc.gnu.org/viewcvs?rev=217918root=gccview=rev Log: PR debug/63239 * g++.dg/debug/dwarf2/deleted-member-function.C: Pass -gno-strict-dwarf on darwin. Modified: trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/g++.dg/debug/dwarf2/deleted-member-function.C
[Bug debug/63239] DWARF does not represent C++ deleted methods
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63239 --- Comment #10 from Jakub Jelinek jakub at gcc dot gnu.org --- You should pass -gno-strict-dwarf unconditionally, I think vxworks has similar defaults as darwin.
[Bug debug/63239] DWARF does not represent C++ deleted methods
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63239 --- Comment #11 from Francois-Xavier Coudert fxcoudert at gcc dot gnu.org --- Author: fxcoudert Date: Fri Nov 21 13:32:08 2014 New Revision: 217920 URL: https://gcc.gnu.org/viewcvs?rev=217920root=gccview=rev Log: PR debug/63239 * g++.dg/debug/dwarf2/deleted-member-function.C: Pass -gno-strict-dwarf. Modified: trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/g++.dg/debug/dwarf2/deleted-member-function.C
[Bug debug/63239] DWARF does not represent C++ deleted methods
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63239 Francois-Xavier Coudert fxcoudert at gcc dot gnu.org changed: What|Removed |Added Status|REOPENED|RESOLVED Resolution|--- |FIXED --- Comment #12 from Francois-Xavier Coudert fxcoudert at gcc dot gnu.org --- (In reply to Jakub Jelinek from comment #10) You should pass -gno-strict-dwarf unconditionally, I think vxworks has similar defaults as darwin. OK, it's true it cannot hurt as we're not calling the assembler anyway.
[Bug debug/63239] DWARF does not represent C++ deleted methods
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63239 --- Comment #2 from Mark Wielaard mark at gcc dot gnu.org --- Author: mark Date: Sun Oct 5 15:25:03 2014 New Revision: 215901 URL: https://gcc.gnu.org/viewcvs?rev=215901root=gccview=rev Log: PR debug/63239 Add DWARF representation for C++11 deleted member function. include/ChangeLog * dwarf2.def (DW_AT_GNU_deleted): New attribute. gcc/ChangeLog * dwarf2out.c (gen_subprogram_die): When a member function is explicitly deleted then add a DW_AT_GNU_deleted attribute. * langhooks.h (struct lang_hooks_for_decls): Add function_decl_deleted_p langhook. * langhooks-def.h (LANG_HOOKS_FUNCTION_DECL_DELETED_P): Define. (LANG_HOOKS_DECLS): Add LANG_HOOKS_FUNCTION_DECL_DELETED_P. gcc/cp/ChangeLog * cp-objcp-common.h (LANG_HOOKS_FUNCTION_DECL_DELETED_P): Define. (cp_function_decl_deleted_p): New prototype. * cp-objcp-common.c (cp_function_deleted_p): New function. gcc/testsuite/ChangeLog * g++.dg/debug/dwarf2/deleted-member-function.C: New testcase. Added: trunk/gcc/testsuite/g++.dg/debug/dwarf2/deleted-member-function.C Modified: trunk/gcc/ChangeLog trunk/gcc/cp/ChangeLog trunk/gcc/cp/cp-objcp-common.c trunk/gcc/cp/cp-objcp-common.h trunk/gcc/dwarf2out.c trunk/gcc/langhooks-def.h trunk/gcc/langhooks.h trunk/gcc/testsuite/ChangeLog trunk/include/ChangeLog trunk/include/dwarf2.def
[Bug debug/63239] DWARF does not represent C++ deleted methods
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63239 Mark Wielaard mark at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED --- Comment #3 from Mark Wielaard mark at gcc dot gnu.org --- https://gcc.gnu.org/ml/gcc-patches/2014-10/msg00272.html
[Bug debug/63239] DWARF does not represent C++ deleted methods
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63239 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added CC||dodji at gcc dot gnu.org, ||jakub at gcc dot gnu.org, ||jason at gcc dot gnu.org --- Comment #1 from Jakub Jelinek jakub at gcc dot gnu.org --- Perhaps we need some DWARF extension for this?
