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Re: [libvirt] libvirt library binary name for linux



On 10/19/2010 11:25 PM, arnaud champion devatom fr wrote:
?I have tried libc.so and it doesn't contains _strdup, amybe it's strdup
instead I will try. Anyway I have a little question (a windowsian
question :) ). Under windows I have a tool named "depends.exe" with it,
I can sse what is exposed thru a dll, is there any equivalent under linux ?

Hmmm, two tools might be useful, but I don't personally know them in
much depth:

 + ldd
 + nm

ldd can be used on an executable file, to show which dynamic libraries
that file needs.  For example, if I have the program "/bin/bash":

  $ ldd /bin/bash
          linux-vdso.so.1 =>  (0x00007fff999ff000)
          libtinfo.so.5 => /lib64/libtinfo.so.5 (0x00000030cd600000)
          libdl.so.2 => /lib64/libdl.so.2 (0x00000030bc200000)
          libc.so.6 => /lib64/libc.so.6 (0x00000030bba00000)
          /lib64/ld-linux-x86-64.so.2 (0x00000030bb600000)

The "nm" program, can be used on a dynamic library to show which
symbols it provides.  For example, on /lib64/libc.so.6:

  $ nm /lib64/libc.so.6
  <snip>
  00000030bbd7ba60 B __daylight
  00000030bba2c550 T __dcgettext
  00000030bba2c550 t __dcgettext_internal
  00000030bba2d5e0 t __dcigettext
  00000030bba2dfc0 t __dcngettext
  00000030bba7c600 T __default_morecore
  00000030bba33140 t __default_sigpause
  00000030bba2c560 T __dgettext
  00000030bba95be0 t __difftime
  00000030bbb1e7c0 t __dl_iterate_phdr
  00000030bba2dfd0 t __dngettext
  00000030bba4f150 t __dprintf
  <snip - it is a long list>

Both nm and ldd can be given options, which change what they display.

Looking at the questions you are asking, they are a bit unusual.

There is nothing _wrong_ with your questions, but they make me curious
what you are trying to do.  If you are ok to explain the idea you are
trying, we might know of a better or easier way.  (no guarantees
though!)  :)

Regards and best wishes,

Justin Clift



Arnaud


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