Re: Still seeing "DWARF version 0 unhandled" (was: Re: No debugsource generated, weird DWARF errors)

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Hi Richard,

On Tue, Aug 04, 2020 at 09:55:45AM +0100, Richard W.M. Jones wrote:
> In https://kojipkgs.fedoraproject.org//work/tasks/5877/48605877/build.log
> (from https://koji.fedoraproject.org/koji/taskinfo?taskID=48605877)
> I'm still seeing errors like:
> 
>   /usr/lib/rpm/debugedit: /builddir/build/BUILDROOT/ocaml-ppx-tools-versioned-5.4.0-5.fc33.x86_64/usr/lib64/ocaml/ppx_tools_versioned/metaquot_409/ppx.exe: DWARF version 0 unhandled
> 
> This is with binutils 2.35-10.fc33 which AFAIK should fix this.
> [...]
>   + gcc -O2 -fno-strict-aliasing -fwrapv -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -Wall -Wdeclaration-after-statement -Werror -fno-common -fexcess-precision=standard -fno-tree-vrp -ffunction-sections -D_FILE_OFFSET_BITS=64 -D_REENTRANT -DCAML_NAME_SPACE  -Wl,-E -o '.ppx/344604af5ef56e11f45ae295381bcce7/ppx.exe'  '-L/usr/lib64/ocaml/compiler-libs' '-L/usr/lib64/ocaml/ocaml-migrate-parsetree' '-L/usr/lib64/ocaml/ppx_derivers' '-L/usr/lib64/ocaml/result' '-L.' '-L.ppx_tools_versioned.objs/byte' '-L.ppx_tools_versioned.objs/native' '-L.ppx_tools_versioned_metaquot_409.objs/byte' '-L.ppx_tools_versioned_metaquot_409.objs/native' '-L/usr/lib64/ocaml'  '/tmp/camlstartup93ae0f.o' '/usr/lib64/ocaml/std_exit.o' '.ppx/344604af5ef56e11f45ae295381bcce7/_ppx.o' 'ppx_tools_versioned_metaquot_409.a' 'ppx_tools_versioned.a' '/usr/lib64/ocaml/ocaml-migrate-parsetree/migrate_parsetree.a' '/usr/lib64/ocaml/ppx_derivers/ppx_derivers.a' '/usr/lib64/ocaml/result/result.a' '/usr/lib64/ocaml/compiler-libs/ocamlcommon.a' '/usr/lib64/ocaml/stdlib.a' '/usr/lib64/ocaml/libasmrun.a' -Wl,-z,relro -Wl,--as-needed  -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -lm -ldl 
> 
> Not sure how to diagnose this further.  None of this is reproducible
> for me locally even with all the same Rawhide packages installed.

If I had to guess, then I would guess that one of the static libraries
under /usr/lib/64/ocaml/*.a contain bad DWARF. Might it be that one of
those was build with a bad binutils gas?

Cheers,

Mark
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