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Re: How can I know if libraries are old?
- From: "Dr. David Kirkby" <david dot kirkby at onetel dot net>
- To: gcc-help at gcc dot gnu dot org
- Date: Thu, 21 Oct 2010 17:53:53 +0100
- Subject: Re: How can I know if libraries are old?
- References: <4CBEF2F8.7060800@onetel.net> <AANLkTikcszSxmS9omgPnAUp9EA2L3ntmkNphqX=6Rmpx@mail.gmail.com> <4CBF87F9.2010503@onetel.net> <mcr62ww4bmm.fsf@google.com> <4CC02A23.6070308@onetel.net> <mcrhbgf33ev.fsf@google.com>
- Reply-to: gcc-help at gcc dot gnu dot org
On 10/21/10 05:40 PM, Ian Lance Taylor wrote:
"Dr. David Kirkby"<david.kirkby@onetel.net> writes:
drkirkby@hawk:~$ elfdump -v /usr/local/gcc-4.5.0/lib/libstdc++.so.6
Version Needed Section: .SUNW_version
index file version
[2] libm.so.2 SUNW_1.2
[3] libgcc_s.so.1 GCC_3.0 [ INFO ]
[4] GCC_3.3 [ INFO ]
[5] GCC_4.2.0
drkirkby@hawk:~$
So why is this showing 4.2.0 when gcc 4.5.0 was used to build this?
Perhaps that's the latest API ???
Please reply to the mailing list, not just to me. Thanks.
I replied to you, since you replied only to me - not the list! I've set to
"reply-to" field as the list now. IMHO, that should be the default, but I think
that is like religion - you will never get agreement over it.
That is telling you that it does not need anything from libgcc_s.so.1
that is more recent than that is available in gcc_4.2.0. That is
normal.
But this is uninteresting. What I was hoping it would show you is the
versions *defined* by libstdc++.so.6, not the versions that it uses.
I suppose it's possible that libstdc++.so.6 doesn't define any versions
on Solaris; what happens when you run elfdump -v on libgcc_s.so.1? Do
you see version definitions, or only version uses?
Ian
drkirkby@hawk:~$ elfdump -v /usr/local/gcc-4.5.0/lib/libgcc_s.so.1
Version Definition Section: .SUNW_version
index version dependency
[1] libgcc_s.so.1 [ BASE ]
[2] GCC_3.0
[3] GCC_3.3 GCC_3.0
[4] GCC_3.3.1 GCC_3.3
[5] GCC_3.4 GCC_3.3.1
[6] GCC_3.4.2 GCC_3.4
[7] GCC_4.0.0 GCC_3.4.2
[8] GCC_4.2.0 GCC_4.0.0
[9] GCC_4.3.0 GCC_4.2.0
[10] GCC_4.5.0 GCC_4.3.0
Version Needed Section: .SUNW_version
index file version
[11] libc.so.1 SUNW_1.1
[12] SUNW_0.9 [ INFO ]
[13] SYSVABI_1.3 [ INFO ]
And here's what I thought was a library from gcc 3 4.3, though that seems highly
unlikely due to the references of gcc versions up to 4.3.
drkirkby@hawk:~$ elfdump -v /usr/lib/libgcc_s.so.1
Version Definition Section: .SUNW_version
index version dependency
[1] libgcc_s.so.1 [ BASE ]
[2] GCC_3.0
[3] GCC_3.3 GCC_3.0
[4] GCC_3.3.1 GCC_3.3
[5] GCC_3.4 GCC_3.3.1
[6] GCC_3.4.2 GCC_3.4
[7] GCC_4.0.0 GCC_3.4.2
[8] GCC_4.2.0 GCC_4.0.0
[9] GCC_4.3.0 GCC_4.2.0
Version Needed Section: .SUNW_version
index file version
[10] libc.so.1 SUNW_1.1
[11] SUNW_0.9 [ INFO ]
[12] SYSVABI_1.3 [ INFO ]
drkirkby@hawk:~$
Dave