Christian PERRIER <bubulle@debian.org> (2013-01-12): > ----- Forwarded message from Joe Seymour <jseymour@codesourcery.com> ----- > > Date: Sat, 12 Jan 2013 13:13:56 +0000 > From: Joe Seymour <jseymour@codesourcery.com> > To: debian-boot@lists.debian.org > Subject: [PATCH] Fix undefined reference to __dso_handle problem encountered with librt.so > X-Mailing-List: <debian-boot@lists.debian.org> archive/latest/170862 > X-CRM114-Status: Good ( pR: 18.8078 ) > > [Please CC me on any responses] > > When using mklibs on a simple test application I encountered the following error > when mklibs attempts to build a reduced librt.so: > > /usr/lib64/libpthread_nonshared.a(pthread_atfork.oS): relocation R_X86_64_PC32 > against undefined hidden symbol `__dso_handle' can not be used when making a > shared object > ld: final link failed: Bad value > > Examining the link map for librt.so, when built by EGLIBC, I see the > __dso_handle definition used by it comes from crtbeginS.o, which isn't included > in the link because mklibs passes -nostartfiles. > > In order to create a reduced librt.so that as closely as possible resembles the > original, it makes sense to include crtbeginS.o when dealing with librt.so.1. > This patch does that. crtendS.o is included as a requisite of crtbeginS.o. In a sid chroot I'm getting this, which looks to me like there's no big issue with librt.so.1? (sid-amd64-devel)kibi@wodi:~/debian-installer/installer/build$ for i in $(find tmp/netboot-gtk/tree/ -type f); do if objdump -x $i 2>/dev/null|grep NEEDED|grep -qs librt.so.1; then echo $i; fi; done tmp/netboot-gtk/tree/sbin/rdnssd tmp/netboot-gtk/tree/lib/x86_64-linux-gnu/libudev.so.1.3.5 tmp/netboot-gtk/tree/lib/systemd/systemd-udevd tmp/netboot-gtk/tree/lib/libudev.so.1 tmp/netboot-gtk/tree/lib/udev/ata_id tmp/netboot-gtk/tree/lib/udev/scsi_id tmp/netboot-gtk/tree/lib/udev/cdrom_id tmp/netboot-gtk/tree/usr/lib/libcairo.so.2.11200.16 tmp/netboot-gtk/tree/usr/lib/libasound.so.2.0.0 tmp/netboot-gtk/tree/usr/bin/espeakup tmp/netboot-gtk/tree/bin/udevadm tmp/netboot-gtk/tree/bin/rdisc6 If you're still having any issues with it, it would be nice to describe a complete test case. Mraw, KiBi.
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