Re: [crosstool-ng] Request for ldd

[Thomas Petazzoni <thomas dot petazzoni at free-electrons dot com>]

Hi,

Thanks for the answer.

Le Fri, 24 Oct 2008 12:57:28 +0200,
Marc Kleine-Budde <mkl@pengutronix.de> a Ãcrit :

> $CROSS-readelf -d

As Yann said, this doesn't resolve the path to the libraries, and it
also doesn't seem to recursively resolve the library dependencies (i.e
a binary depending on liba, which then depends on libb. readelf -d will
only show liba, while ldd will show both liba and libb).

> just copy the ldd from the host to the target, it's a script. Maybe
> you have to adjust some lines here and there

Thanks, I discovered that ldd on my host is a shell script, I never had
a look at it. The problem is that it seems to use /lib/ld-linux.so.2 in
standalone mode to resolve the dependencies, but the standalone mode is
not implemented in uClibc version of /lib/ld-linux.so.2.

In the uClibc source code, there is a standalone version of ldd, in
utils/ldd.c. Maybe this version of ldd could be cross-compiled by
crosstool-ng and placed somewhere in the installation directory of the
toolchain, so that one could copy it to the target if needed.

Sincerly,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers and embedded Linux development,
consulting, training and support.
http://free-electrons.com

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