Difference between revisions of "Ldd"
From Linuxintro
imported>ThorstenStaerk |
imported>ThorstenStaerk |
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libkutils.so.4 => '''./libkutils.so.4''' (0x00007f595da82000) | libkutils.so.4 => '''./libkutils.so.4''' (0x00007f595da82000) | ||
libkparts.so.4 => ./libkparts.so.4 (0x00007f595d831000) | libkparts.so.4 => ./libkparts.so.4 (0x00007f595d831000) | ||
| − | |||
= Usage = | = Usage = | ||
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= See also = | = See also = | ||
| − | [http://man-wiki.net/index.php/1:ldd ldd's man page] | + | * [[strace]] |
| + | * [[nm]] | ||
| + | * [http://man-wiki.net/index.php/1:ldd ldd's man page] | ||
Revision as of 09:54, 24 May 2009
ldd shows which libraries are used by an executable file.
- Example
itchy:~ # ldd /usr/local/bin/ktimetracker
linux-vdso.so.1 => (0x00007fffdb7ff000)
libkutils.so.4 => /usr/local/lib64/libkutils.so.4 (0x00007feed334b000)
libkparts.so.4 => /usr/local/lib64/libkparts.so.4 (0x00007feed30fa000)
libkcal.so.4 => /usr/local/lib64/libkcal.so.4 (0x00007feed2dd7000)
[...]
In this case, libkutils is loaded from /usr/local/lib64/libkutils.so.4 to memory address 0x00007feed334b000.
ldd uses the LD_LIBRARY_PATH variable to find out where to search for libraries:
tweedleburg:~/jail # ldd ktimetracker
linux-vdso.so.1 => (0x00007fffa7dff000)
libkutils.so.4 => /usr/lib64/libkutils.so.4 (0x00007fa69f8e1000)
libkparts.so.4 => /usr/lib64/libkparts.so.4 (0x00007fa69f69f000)
tweedleburg:~/jail # export LD_LIBRARY_PATH=.
tweedleburg:~/jail # ldd ktimetracker
linux-vdso.so.1 => (0x00007fff65fff000)
libkutils.so.4 => ./libkutils.so.4 (0x00007f595da82000)
libkparts.so.4 => ./libkparts.so.4 (0x00007f595d831000)
Usage
To find out all files that an executable file depends on:
ldd /usr/local/bin/ktimetracker | sed "s/^.* => //" | sed "s/ (0x.*//"
