Date: Fri, 25 Aug 2017 11:07:56 -0700 From: Ryan Libby <rlibby@gmail.com> To: John Baldwin <jhb@freebsd.org> Cc: src-committers <src-committers@freebsd.org>, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r322824 - in head: lib/clang share/mk usr.bin/clang Message-ID: <CAHgpiFwzK5FyB6GDSXdGReO=wAQOAFDxqtQRNZWSR4WHz4ULEA@mail.gmail.com> In-Reply-To: <201708232330.v7NNUPpV052276@repo.freebsd.org> References: <201708232330.v7NNUPpV052276@repo.freebsd.org>
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On Wed, Aug 23, 2017 at 4:30 PM, John Baldwin <jhb@freebsd.org> wrote: > Author: jhb > Date: Wed Aug 23 23:30:25 2017 > New Revision: 322824 > URL: https://svnweb.freebsd.org/changeset/base/322824 > > Log: > Improve the coverage of debug symbols for MK_DEBUG_FILES. > > - Include debug symbols in static libraries. This permits binaries > to include debug symbols for functions obtained from static libraries. > - Permit the C/C++ compiler flags added for MK_DEBUG_FILES to be > overridden by setting DEBUG_FILES_CFLAGS. Use this to limit the debug > information for llvm libraries and binaries. > > Reviewed by: emaste > Sponsored by: DARPA / AFRL > Differential Revision: https://reviews.freebsd.org/D12025 > > Added: > head/lib/clang/Makefile.inc (contents, props changed) > Modified: > head/share/mk/bsd.lib.mk > head/share/mk/bsd.prog.mk > head/share/mk/bsd.sys.mk > head/usr.bin/clang/Makefile.inc This causes llvm to emit hundreds of new warnings [1] for "DWARF2 only supports one section per compilation unit" Are these expected? Are they a concern? Should we silence them? Is this an upstream llvm bug [2]? [1] https://ci.freebsd.org/job/FreeBSD-head-amd64-build/4719/warnings9Result/new/ $ grep -A 1 "warning: DWARF2 only supports one section" consoleText.txt | grep -o "\.section.*" | sort | uniq -c 3 .section .fini,"ax",@progbits 6 .section .init 4 .section .init,"ax",@progbits 17 .section .note.GNU-stack,"",@progbits 2785 .section .note.GNU-stack,"",%progbits 2 .section .reloc, "a" 21 .section .rodata 1 .section __xen_guest [2] https://lists.freebsd.org/pipermail/freebsd-toolchain/2016-March/002122.html
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