[systemd-devel] pcre in daemons

[Lennart Poettering]

On Wed, 26.02.14 16:22, Daniel J Walsh (dwalsh at redhat.com) wrote:

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> On 02/26/2014 03:05 PM, Zbigniew Jędrzejewski-Szmek wrote:
> > On Wed, Feb 26, 2014 at 08:54:34PM +0100, Thomas H.P. Andersen wrote:
> >> The todo says: "something pulls in pcre as shared object dependency into
> >> our daemons such as hostnamed"
> >> 
> >> Normal buiild: ldd ./systemd-hostnamed linux-vdso.so.1 =>
> >> (0x00007fff247bc000) libselinux.so.1 => /lib64/libselinux.so.1
> >> (0x00007f7ec47f7000) librt.so.1 => /lib64/librt.so.1
> >> (0x00007f7ec45ef000) libdl.so.2 => /lib64/libdl.so.2
> >> (0x00007f7ec43ea000) libpthread.so.0 => /lib64/libpthread.so.0
> >> (0x00007f7ec41cd000) libc.so.6 => /lib64/libc.so.6 (0x00007f7ec3e0e000) 
> >> /lib64/ld-linux-x86-64.so.2 (0x00007f7ec4a2f000) libpcre.so.1 =>
> >> /lib64/libpcre.so.1 (0x00007f7ec3ba7000) liblzma.so.5 =>
> >> /lib64/liblzma.so.5 (0x00007f7ec3982000)
> > It's a selinux problem (or not, if it actually uses pcre's). ldd
> > /lib64/libselinux.so.1 linux-vdso.so.1 =>  (0x00007fff58bfe000) 
> > libpcre.so.1 => /lib64/libpcre.so.1 (0x0000003803400000) liblzma.so.5 =>
> > /lib64/liblzma.so.5 (0x00000035d6800000) libdl.so.2 => /lib64/libdl.so.2
> > (0x00000035d2c00000) libc.so.6 => /lib64/libc.so.6 (0x00000035d2000000) 
> > /lib64/ld-linux-x86-64.so.2 (0x00000035d1800000) libpthread.so.0 =>
> > /lib64/libpthread.so.0 (0x00000035d2800000)
> > 
> > Zbyszek _______________________________________________ systemd-devel
> > mailing list systemd-devel at lists.freedesktop.org 
> > http://lists.freedesktop.org/mailman/listinfo/systemd-devel
> > 
> libselinux and systemd take advantage of pcre for speeding up the handling of
> reading in the  labeling file.

Not really. systemd doesn't use pcre at all, actually. It's only
libselinux. And for some reason that is pulled into our binary as
well...

Lennart

-- 
Lennart Poettering, Red Hat