On Sun, 29 Nov 2015, Konstantin Belousov wrote:
On Sun, Nov 29, 2015 at 01:23:04AM -0500, Daniel Eischen wrote:
On Fri, 27 Nov 2015, Daniel Eischen wrote:
Damn, please use deisc...@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.
I did the following on the librt from the HEAD of about month ago:
pooma% ls -l netboot/sandy/usr/lib/librt.so.1
-r--r--r-- 1 root wheel 23704 Oct 24 23:35 netboot/sandy/usr/lib/librt.so.1
pooma% readelf -sw netboot/sandy/usr/lib/librt.so.1 | grep GLOBAL | grep -v UND
| grep -v FBSDpriv | grep FBSD
97: 0000000000000000 0 OBJECT GLOBAL DEFAULT ABS FBSD_1.0
But I think that your commit is the good change.
Can you check librt.so.1 in your buildworld temporary build
environment?
$ readelf -sW /usr/obj/usr/FreeBSD/svn/src/tmp/usr/lib/librt.so.1 \
grep -v UND | grep GLOBAL
There has to be a reason that tests/sys/mqueue/mqtest[3-4].c build
without error when they reference __mq_oshandle. That symbol is
not exported from librt.
Hmm, looks like libc and libthr are also the same (leaky) in the
temporary build environment (TBE). So something broke when building
the TBE libraries.
For r277320 on my system Jan 19, 2015, the TBE libraries must have
been built correctly because mqtests[3-4] failed with unresolved
references to __mq_oshandle.
--
DE
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