[Swan-dev] Removed linked shared libraries on our binaries that were not required

Mon, 05 Oct 2015 11:40:36 -0700 


hi,

Daniel pointed out we were linking in a lot of libraries that we do not
need. Especially all the klips binaries ended up linking in nss, nspr
and gmp. Commit c32451cae7514 changes NSSLIBS and reduces this a lot.

I still see linking happening against libsmime3 and libssl3, which I
don't understand. We do not specifically specify these, so they must
come in via libnss3 or libnspr4. I am not sure if they can be prevented
or how to prevent it. Maybe Andrew can have a look at this.

Below is the diff of a sorted ldd output before and after this patch.
(Manually added the binary name in the diff for clarity)

Paul


addconn:

@@ -5,7 +5,6 @@
        libc.so.6 => /lib64/libc.so.6
        libdl.so.2 => /lib64/libdl.so.2
libevent-2.0.so.5 => /lib64/libevent-2.0.so.5 - libgmp.so.10 => /lib64/libgmp.so.10 
        libgssapi_krb5.so.2 => /lib64/libgssapi_krb5.so.2
        libk5crypto.so.3 => /lib64/libk5crypto.so.3
libkeyutils.so.1 => /lib64/libkeyutils.so.1 @@ -23,8 +22,6 @@ 
        libresolv.so.2 => /lib64/libresolv.so.2
        librt.so.1 => /lib64/librt.so.1
libselinux.so.1 => /lib64/libselinux.so.1 - libsmime3.so => /lib64/libsmime3.so - libssl3.so => /lib64/libssl3.so 
        libssl.so.10 => /lib64/libssl.so.10
        libunbound.so.2 => /lib64/libunbound.so.2
        libutil.so.1 => /lib64/libutil.so.1

eroute:

@@ -33,40 +30,17 @@
        /lib64/ld-linux-x86-64.so.2
libc.so.6 => /lib64/libc.so.6 - libdl.so.2 => /lib64/libdl.so.2 - libgmp.so.10 => /lib64/libgmp.so.10 - libnspr4.so => /lib64/libnspr4.so - libnss3.so => /lib64/libnss3.so - libnssutil3.so => /lib64/libnssutil3.so - libplc4.so => /lib64/libplc4.so - libplds4.so => /lib64/libplds4.so libpthread.so.0 => /lib64/libpthread.so.0 - librt.so.1 => /lib64/librt.so.1 - libsmime3.so => /lib64/libsmime3.so - libssl3.so => /lib64/libssl3.so - libz.so.1 => /lib64/libz.so.1 
        linux-vdso.so.1

ikeping:

        /lib64/ld-linux-x86-64.so.2
libc.so.6 => /lib64/libc.so.6 - libdl.so.2 => /lib64/libdl.so.2 - libgmp.so.10 => /lib64/libgmp.so.10 - libnspr4.so => /lib64/libnspr4.so - libnss3.so => /lib64/libnss3.so - libnssutil3.so => /lib64/libnssutil3.so - libplc4.so => /lib64/libplc4.so - libplds4.so => /lib64/libplds4.so libpthread.so.0 => /lib64/libpthread.so.0 - librt.so.1 => /lib64/librt.so.1 - libsmime3.so => /lib64/libsmime3.so - libssl3.so => /lib64/libssl3.so - libz.so.1 => /lib64/libz.so.1 
        linux-vdso.so.1

_import_crl:

        /lib64/ld-linux-x86-64.so.2
        libc.so.6 => /lib64/libc.so.6
libdl.so.2 => /lib64/libdl.so.2 - libgmp.so.10 => /lib64/libgmp.so.10 
        libnspr4.so => /lib64/libnspr4.so
        libnss3.so => /lib64/libnss3.so
libnssutil3.so => /lib64/libnssutil3.so @@ -74,41 +48,16 @@ 
        libplds4.so => /lib64/libplds4.so
        libpthread.so.0 => /lib64/libpthread.so.0
librt.so.1 => /lib64/librt.so.1 - libsmime3.so => /lib64/libsmime3.so - libssl3.so => /lib64/libssl3.so - libz.so.1 => /lib64/libz.so.1 
        linux-vdso.so.1

klipsdebug:

        /lib64/ld-linux-x86-64.so.2
libc.so.6 => /lib64/libc.so.6 - libdl.so.2 => /lib64/libdl.so.2 - libgmp.so.10 => /lib64/libgmp.so.10 - libnspr4.so => /lib64/libnspr4.so - libnss3.so => /lib64/libnss3.so - libnssutil3.so => /lib64/libnssutil3.so - libplc4.so => /lib64/libplc4.so - libplds4.so => /lib64/libplds4.so libpthread.so.0 => /lib64/libpthread.so.0 - librt.so.1 => /lib64/librt.so.1 - libsmime3.so => /lib64/libsmime3.so - libssl3.so => /lib64/libssl3.so - libz.so.1 => /lib64/libz.so.1 
        linux-vdso.so.1

pf_key:
        /lib64/ld-linux-x86-64.so.2
libc.so.6 => /lib64/libc.so.6 - libdl.so.2 => /lib64/libdl.so.2 - libgmp.so.10 => /lib64/libgmp.so.10 - libnspr4.so => /lib64/libnspr4.so - libnss3.so => /lib64/libnss3.so - libnssutil3.so => /lib64/libnssutil3.so - libplc4.so => /lib64/libplc4.so - libplds4.so => /lib64/libplds4.so libpthread.so.0 => /lib64/libpthread.so.0 - librt.so.1 => /lib64/librt.so.1 - libsmime3.so => /lib64/libsmime3.so - libssl3.so => /lib64/libssl3.so - libz.so.1 => /lib64/libz.so.1 
        linux-vdso.so.1

pluto:
/lib64/ld-linux-x86-64.so.2 @@ -162,7 +111,6 @@ 
        libc.so.6 => /lib64/libc.so.6
        libdl.so.2 => /lib64/libdl.so.2
libevent-2.0.so.5 => /lib64/libevent-2.0.so.5 - libgmp.so.10 => /lib64/libgmp.so.10 
        libgssapi_krb5.so.2 => /lib64/libgssapi_krb5.so.2
        libk5crypto.so.3 => /lib64/libk5crypto.so.3
libkeyutils.so.1 => /lib64/libkeyutils.so.1 @@ -180,8 +128,6 @@ 
        libresolv.so.2 => /lib64/libresolv.so.2
        librt.so.1 => /lib64/librt.so.1
libselinux.so.1 => /lib64/libselinux.so.1 - libsmime3.so => /lib64/libsmime3.so - libssl3.so => /lib64/libssl3.so 
        libssl.so.10 => /lib64/libssl.so.10
        libunbound.so.2 => /lib64/libunbound.so.2
libutil.so.1 => /lib64/libutil.so.1 @@ -200,9 +146,6 @@ 
        libplds4.so => /lib64/libplds4.so
        libpthread.so.0 => /lib64/libpthread.so.0
librt.so.1 => /lib64/librt.so.1 - libsmime3.so => /lib64/libsmime3.so - libssl3.so => /lib64/libssl3.so - libz.so.1 => /lib64/libz.so.1 
        linux-vdso.so.1

showhostkey:
/lib64/ld-linux-x86-64.so.2 @@ -216,55 +159,19 @@ 
        libplds4.so => /lib64/libplds4.so
        libpthread.so.0 => /lib64/libpthread.so.0
librt.so.1 => /lib64/librt.so.1 - libsmime3.so => /lib64/libsmime3.so - libssl3.so => /lib64/libssl3.so - libz.so.1 => /lib64/libz.so.1 
        linux-vdso.so.1

spi:

        /lib64/ld-linux-x86-64.so.2
libc.so.6 => /lib64/libc.so.6 - libdl.so.2 => /lib64/libdl.so.2 - libgmp.so.10 => /lib64/libgmp.so.10 - libnspr4.so => /lib64/libnspr4.so - libnss3.so => /lib64/libnss3.so - libnssutil3.so => /lib64/libnssutil3.so - libplc4.so => /lib64/libplc4.so - libplds4.so => /lib64/libplds4.so libpthread.so.0 => /lib64/libpthread.so.0 - librt.so.1 => /lib64/librt.so.1 - libsmime3.so => /lib64/libsmime3.so - libssl3.so => /lib64/libssl3.so - libz.so.1 => /lib64/libz.so.1 
        linux-vdso.so.1

spigrp:

        /lib64/ld-linux-x86-64.so.2
libc.so.6 => /lib64/libc.so.6 - libdl.so.2 => /lib64/libdl.so.2 - libgmp.so.10 => /lib64/libgmp.so.10 - libnspr4.so => /lib64/libnspr4.so - libnss3.so => /lib64/libnss3.so - libnssutil3.so => /lib64/libnssutil3.so - libplc4.so => /lib64/libplc4.so - libplds4.so => /lib64/libplds4.so libpthread.so.0 => /lib64/libpthread.so.0 - librt.so.1 => /lib64/librt.so.1 - libsmime3.so => /lib64/libsmime3.so - libssl3.so => /lib64/libssl3.so - libz.so.1 => /lib64/libz.so.1 
        linux-vdso.so.1

tncfg:

        /lib64/ld-linux-x86-64.so.2
libc.so.6 => /lib64/libc.so.6 - libdl.so.2 => /lib64/libdl.so.2 - libgmp.so.10 => /lib64/libgmp.so.10 - libnspr4.so => /lib64/libnspr4.so - libnss3.so => /lib64/libnss3.so - libnssutil3.so => /lib64/libnssutil3.so - libplc4.so => /lib64/libplc4.so - libplds4.so => /lib64/libplds4.so libpthread.so.0 => /lib64/libpthread.so.0 - librt.so.1 => /lib64/librt.so.1 - libsmime3.so => /lib64/libsmime3.so - libssl3.so => /lib64/libssl3.so - libz.so.1 => /lib64/libz.so.1 
        linux-vdso.so.1

whack:

@@ -8,7 +8,4 @@
        libplds4.so => /lib64/libplds4.so
        libpthread.so.0 => /lib64/libpthread.so.0
librt.so.1 => /lib64/librt.so.1 - libsmime3.so => /lib64/libsmime3.so - libssl3.so => /lib64/libssl3.so - libz.so.1 => /lib64/libz.so.1 
        linux-vdso.so.1

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