:: Re: [DNG] recursive ldd?
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Autore: David Hoppenbrouwers
Data:  
To: dng
Oggetto: Re: [DNG] recursive ldd?
linux-vdso is provided by the kernel.

https://www.kernel.org/doc/Documentation/ABI/stable/vdso

David

On 09/04/2024 15:02, Didier Kryn wrote:
> Le 09/04/2024 à 13:46, Ralph Ronnquist via Dng a écrit :
>> On Tue, Apr 09, 2024 at 05:57:56AM -0400, Steve Litt wrote:
>>> Hi all,
>>>
>>> I'm doing a little research on the xz problem, and want to use ldd to
>>> find all dependent object files, direct and indirect. I found nothing
>>> in the ldd man page telling me I can do this.
>>>
>>> Before I write a nasty Python program to parse and recurse ldd output,
>>> does anybody know an equivalent of a recursive ldd?
>>>
>>> Also, is there an apt command that can show all dependencies, direct or
>>> indirect, of a given command?
>> "... ldd shows the entire dependency tree of the executable"
>>
>> Ralph.
>
>     I tried by curiosity the example given by the man page.
>
> $ ldd /bin/ls
>     linux-vdso.so.1 (0x00007ffef69ed000)
>     libgtk3-nocsd.so.0 => /usr/lib/x86_64-linux-gnu/libgtk3-nocsd.so.0 (0x00007fe00a94c000)
>     libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007fe00a91e000)
>     libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fe00a73d000)
>     libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fe00a738000)
>     libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fe00a733000)
>     libpcre2-8.so.0 => /usr/lib/x86_64-linux-gnu/libpcre2-8.so.0 (0x00007fe00a697000)
>     /lib64/ld-linux-x86-64.so.2 (0x00007fe00a995000)
> $
>
> The first dependency, linux-vdso.so.1 simply does not exist on my
> system. So, how can it work?
>
> I wonder what dependencies on GTK3, on libpthreads and on perl-like
> regex are doing here in a basic unix tool.
>
> --     Didier
>
>
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