Date: Sun, 29 Nov 2015 01:23:04 -0500 (EST) From: Daniel Eischen <eischen@vigrid.com> To: current@freebsd.org Subject: librt symbol versioning breakage (was Re: Build failure, undefined reference to __mq_oshandle) Message-ID: <Pine.GSO.4.64.1511290118120.18517@sea.ntplx.net> In-Reply-To: <Pine.GSO.4.64.1511271637140.12007@sea.ntplx.net> References: <Pine.GSO.4.64.1511271432140.11500@sea.ntplx.net> <Pine.GSO.4.64.1511271634290.12007@sea.ntplx.net> <Pine.GSO.4.64.1511271637140.12007@sea.ntplx.net>
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On Fri, 27 Nov 2015, Daniel Eischen wrote: > Damn, please use deischen@freebsd.org for replies. > > On Fri, 27 Nov 2015, Daniel Eischen wrote: > >> On Fri, 27 Nov 2015, Daniel Eischen wrote: >> >>> $ uname -a >>> FreeBSD vega 11.0-CURRENT FreeBSD 11.0-CURRENT #0 r277320: Mon Jan 19 >>> 09:02:50 EST 2015 >>> deischen@vega:/usr/FreeBSD/svn/obj/usr/FreeBSD/svn/src/sys/vega amd64 >>> >>> Upgrading to today's current, 'rm -rf /usr/obj/*; make -j8 buildworld' >>> fails here: >>> >>> ===> lib/libc/tests/gen/execve (buildconfig) >>> --- all_subdir_tests --- >>> --- all_subdir_mqueue --- >>> mqtest3.o: In function `main': >>> /usr/FreeBSD/svn/src/tests/sys/mqueue/mqtest3.c:(.text+0x139): undefined >>> reference to `__mq_oshandle' >>> /usr/FreeBSD/svn/src/tests/sys/mqueue/mqtest3.c:(.text+0x14c): undefined >>> reference to `__mq_oshandle' >>> /usr/FreeBSD/svn/src/tests/sys/mqueue/mqtest3.c:(.text+0x16c): undefined >>> reference to `__mq_oshandle' >>> /usr/FreeBSD/svn/src/tests/sys/mqueue/mqtest3.c:(.text+0x3e6): undefined >>> reference to `__mq_oshandle' >>> /usr/FreeBSD/svn/src/tests/sys/mqueue/mqtest3.c:(.text+0x3f9): undefined >>> reference to `__mq_oshandle' >>> mqtest3.o:/usr/FreeBSD/svn/src/tests/sys/mqueue/mqtest3.c:(.text+0x40f): >>> more undefined references to `__mq_oshandle' follow >>> cc: error: linker command failed with exit code 1 (use -v to see >>> invocation) >>> >>> Going to try make [-j1], next, but anyone come across this? >> >> Still fails. >> >> Why do the tests in tests/sys/mqueue/ try to use non-public APIs? So I found out that sometime in the last year or so, symbol versioning for librt was broken and leaking symbols that shouldn't have been leaked. I've just committed a fix for this. Do a 'readelf -sw /usr/lib/librt.so.1 | grep GLOBAL | grep -v UND' and see the non FBSD_foo symbols that shouldn't be there. -- DE
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