Tobias Powalowski wrote:
Am Mittwoch 11 März 2009 schrieb Allan McRae:
Gerardo Exequiel Pozzi wrote:
Pierre Schmitz wrote:
Does anybody know what this message in dmesg is about? Was syslog-ng compiled for i686?
warning: `syslog-ng' uses 32-bit capabilities (legacy support in use)
Very out-of-date libcap, not only syslog-ng, also proftpd, vsftpd, pulseaudio, ntpd, virtualbox, etc, etc...
http://www.archlinux.org/packages/extra/i686/libcap/ (for linux 2.4)
Need to have libcap2 package for kernel 2.6 in Arch Linux http://www.kernel.org/pub/linux/libs/security/linux-privs/
I was confused about this as libcap is in [extra] so how can it make problems with a package in [core]?
So going from this comment in the bug report about libcap (http://bugs.archlinux.org/task/11917#comment41046) I get...
readelf -s /usr/sbin/syslog-ng | grep cap
33: 00000000 0 FUNC GLOBAL DEFAULT UND capset@GLIBC_2.1 (4) 177: 00000000 0 FUNC GLOBAL DEFAULT UND capget@GLIBC_2.1 (4) 473: 08228bd8 4 OBJECT GLOBAL DEFAULT 26 OPENSSL_ia32cap_P
Looks like libcap is a soft dep there. How?
Then rebuild in clean chroot:
readelf -s syslog-ng | grep cap
467: 08221b18 4 OBJECT GLOBAL DEFAULT 26 OPENSSL_ia32cap_P
And then the dmesg warning goes away... So, the lesson to learn is to _always build in a clean chroot_!
Allan
hrm i normally build in chroots, seems somehow this one slipped into it. Shall i add it as makedepend?
Yes, is a makedepends, capget, capset are glibc symbols. But these symbols are defined in sys/capability.h (that are part of libcap) don't confuse with linux/capability.h So you can make syslog-ng with capabilities, and don't have libcap installed. ;) See libc.so ;) # readelf -s /lib/libc.so.6 | grep cap 1745: 000d10e0 67 FUNC GLOBAL DEFAULT 11 capset@@GLIBC_2.1 1923: 000d1090 67 FUNC GLOBAL DEFAULT 11 capget@@GLIBC_2.1 3801: 000d1090 67 FUNC LOCAL DEFAULT 11 __GI_capget 4043: 000d10e0 67 FUNC LOCAL DEFAULT 11 __GI_capset 5388: 000d10e0 67 FUNC GLOBAL DEFAULT 11 capset 6337: 000d1090 67 FUNC GLOBAL DEFAULT 11 capget Allan: I hope you have cleared up the confusion. -- Gerardo Exequiel Pozzi ( djgera ) http://www.djgera.com.ar KeyID: 0x1B8C330D Key fingerprint = 0CAA D5D4 CD85 4434 A219 76ED 39AB 221B 1B8C 330D