Bug 910291

Summary:	media-libs/libdv-1.0.0-r4 - fails to build with mold as system linker
Product:	Gentoo Linux	Reporter:	Bob Deblier <bob.deblier>
Component:	Current packages	Assignee:	Gentoo Media-video project <media-video>
Status:	RESOLVED FIXED
Severity:	minor	CC:	marcin.deranek
Priority:	Normal
Version:	unspecified
Hardware:	AMD64
OS:	Linux
See Also:	https://github.com/rui314/mold/issues/271
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:
Bug Blocks:	830404
Attachments:	build log

Description Bob Deblier 2023-07-13 10:06:43 UTC

ebuild info:

[ebuild   R    ] media-libs/libdv-1.0.0-r4::gentoo  ABI_X86="32 (64) (-x32)" 0 KiB

Problem seems to occur during the 32-bit linking stage.


Reproducible: Always

Steps to Reproduce:
1. set up mold as system linker
2. emerge media-libs/libdv
3. link error
Actual Results:  

/bin/sh ../libtool --silent  --tag=CC   --mode=link x86_64-pc-linux-gnu-gcc -m32 -mfpmath=sse  -O2 -pipe -march=native -Wall -version-info 4:3:0 -fuse-ld=mold -Wl,-O1 -Wl,--as-needed -o libdv.la -rpath /usr/lib dv.lo dct.lo idct_248.lo weighting.lo quant.lo vlc.lo place.lo parse.lo bitstream.lo YUY2.lo YV12.lo rgb.lo audio.lo util.lo encode.lo headers.lo enc_input.lo enc_audio_input.lo enc_output.lo vlc_x86.lo quant_x86.lo idct_block_mmx.lo dct_block_mmx.lo rgbtoyuv.lo encode_x86.lo transpose_x86.lo  -lrt -lm 
mold: error: duplicate symbol: .libs/dct_block_mmx.o: .libs/vlc_x86.o: __i686.get_pc_thunk.bp
mold: error: duplicate symbol: .libs/rgbtoyuv.o: .libs/vlc_x86.o: __i686.get_pc_thunk.bp
mold: error: duplicate symbol: .libs/idct_block_mmx.o: .libs/vlc_x86.o: __i686.get_pc_thunk.bp
collect2: error: ld returned 1 exit status


Expected Results:  
Successful linking & emerge.

Can work around this by using GNU ld.

Comment 1 Bob Deblier 2023-07-13 10:07:40 UTC

Created attachment 865452 [details]
build log

Comment 2 Bob Deblier 2023-07-13 10:33:06 UTC

Probably to-be-linked with bug 830404.

Comment 3 Marcin Deranek 2024-11-20 17:32:41 UTC

Seems to be related to https://github.com/rui314/mold/issues/271

Comment 4 Larry the Git Cow gentoo-dev

2025-01-04 16:17:19 UTC

The bug has been closed via the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=b7deee8cade4462ff88a83acfe0a996c158af32a

commit b7deee8cade4462ff88a83acfe0a996c158af32a
Author:     Sam James <sam@gentoo.org>
AuthorDate: 2025-01-04 15:53:08 +0000
Commit:     Sam James <sam@gentoo.org>
CommitDate: 2025-01-04 15:54:59 +0000

    media-libs/libdv: misc fixes
    
    * Build with -std=gnu89 (bug #927212)
    
      I'm going to take a look at the patches attached there and may apply
      them in a new revision, but I wanted to get this out with the various
      fixes so far in stable first.
    
    * Force bfd (bug #910291)
    
    * Build with -fno-strict-aliasing -fno-aggressive-loop-optimizations (bug #877709)
    
    Bug: https://bugs.gentoo.org/877709
    Bug: https://bugs.gentoo.org/927212
    Closes: https://bugs.gentoo.org/910291
    Signed-off-by: Sam James <sam@gentoo.org>

 .../libdv/{libdv-1.0.0-r4.ebuild => libdv-1.0.0-r5.ebuild}     | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)