[sr #107608] duplicate entries in symbol script

[Andreas Metzler]

URL:
  <http://savannah.gnu.org/support/?107608>

                 Summary: duplicate entries in symbol script
                 Project: GnuTLS
            Submitted by: ametzler
            Submitted on: Mo 28 Feb 2011 20:07:23 CET
                Category: None
                Priority: 5 - Normal
                Severity: 2 - Minor
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
        Operating System: GNU/Linux

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Details:

Quoting lib/libgnutls.map from 2.10.5:
-------------------------
GNUTLS_2_8
{
  global:
[...]
    gnutls_session_ticket_key_generate;
    gnutls_session_ticket_enable_client;
    gnutls_session_ticket_enable_server;
} GNUTLS_1_4;

GNUTLS_2_10
{
  global:
    gnutls_session_ticket_key_generate;
    gnutls_session_ticket_enable_client;
    gnutls_session_ticket_enable_server;
[...]
--------------------------

Note how the three symbols are listed in both GNUTLS_2_8 and GNUTLS_2_10
sections. Only one of the entries is actually used, GNU binutils (both ld and
gold) use the first match, as can be seen in the final binaries:

ametzler at argenau:/tmp/GNUTLS/gnutls.git$ objdump -T
/tmp/GNUTLS/libgnutls26_2.10.5-1/usr/lib/libgnutls.so.26.16.14 | grep -E
'gnutls_session_ticket_enable_client|gnutls_session_ticket_enable_server|gnutls_session_ticket_key_generate'
00046310 g    DF .text  0000006a  GNUTLS_2_8 
gnutls_session_ticket_enable_client
00046f80 g    DF .text  00000102  GNUTLS_2_8 
gnutls_session_ticket_key_generate
00046e80 g    DF .text  000000f6  GNUTLS_2_8 
gnutls_session_ticket_enable_server

gold actually warns about this error:

/usr/bin/ld: warning: using 'GNUTLS_2_8' as version for
'|gnutls_session_ticket_enable_client' which is also named in version
'GNUTLS_2_10' in script
/usr/bin/ld: warning: using 'GNUTLS_2_8' as version for
'gnutls_session_ticket_enable_server' which is also named in version
'GNUTLS_2_10' in script
/usr/bin/ld: warning: using 'GNUTLS_2_8' as version for
'gnutls_session_ticket_key_generate' which is also named in version
'GNUTLS_2_10

Trivial patch for remotes/origin/gnutls_2_10_x attached. The issue is also
present in HEAD.



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File Attachments:


-------------------------------------------------------
Date: Mo 28 Feb 2011 20:07:23 CET  Name:
0001-fix-duplicate-symbols-in-version-script.patch  Size: 904B   By: ametzler
bugfix
<http://savannah.gnu.org/support/download.php?file_id=22810>

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