Re: strange dynamic linking

[kaih@khms.westfalen.de (Kai Henningsen)]

hamish@debian.org (Hamish Moffatt)  wrote on 10.01.98 in <[🔎] 19980110102125.29958@yodeller>:

> I happened to copy the libc5 badblocks binaries onto my libc6
> system, for a project I'm working on, and for curiousity's sake,
> ran ldd on it;
>
> [10:12am] root@hamishpc:DLX.lilo/rd-tree/bin# ldd ./badblocks
>         libext2fs.so.2 => /lib/libext2fs.so.2 (0x4000b000)
>         libcom_err.so.2 => /lib/libcom_err.so.2 (0x4001b000)
>         libc.so.5 => /lib/libc.so.5 (0x4001d000)
>         libc.so.6 => /lib/libc.so.6 (0x400d9000)
>         ld-linux.so.2 => /lib/ld-linux.so.2 (0x40178000)
>
> Two versions of libc? Looking at the individual libraries,
>
> [10:12am] root@hamishpc:DLX.lilo/rd-tree/bin# ldd /lib/libext2fs.so.2
>         libc.so.6 => /lib/libc.so.6 (0x40013000)
>         /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x2aaaa000)
>         libcom_err.so.2 => /lib/libcom_err.so.2 (0x400b2000)
> [10:19am] root@hamishpc:DLX.lilo/rd-tree/bin# ldd /lib/libcom_err.so.2
>         libc.so.6 => /lib/libc.so.6 (0x40005000)
>         /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x2aaaa000)
>
> Is this a bug in something?

I'd suspect in libext2fs and libcomerr: if they're libc6 dependant, they  
ought to have different sonames from the libc5 dependant versions, so ldso  
won't try to use them for libc5 programs.

As there were several changes lately with these, which versions are you  
using?


MfG Kai


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