Re: [prelink-cross] error while loading shared libraries: ld-linux.so.3

[Mark Hatle <mark.hatle@windriver.com>]

On 6/16/15 5:56 PM, Florian Boehmak wrote:
>> The error indicates that it found a library required called 'ld-linux.so.3', but
>> could not find that in the "path".  (The path generally being the sysroot path
>> passed to the rtld.)
> 
> I tried to move the files to their location in sysroot:
> 
> arm-2012.03/arm-none-linux-gnueabi/libc/usr/local/include/world.h
> arm-2012.03/arm-none-linux-gnueabi/libc/usr/local/lib/libworld.so
> arm-2012.03/arm-none-linux-gnueabi/libc/usr/local/bin/hello
> arm-2012.03/arm-none-linux-gnueabi/libc/etc/prelink.conf
> 
> 
>> What command did you use to run the prelinker?  And does your sysroot contain
>> the /lib/ld-linux.so.3?
> 
> prelink command:
> 
> PATH=/usr/local/sbin prelink --verbose
> --root=arm-2012.03/arm-none-linux-gnueabi/libc
> --cache-file=/etc/cache/prelink.cache --config-file=/etc/prelink.conf
> --ld-library-path="/usr/local/lib;/lib;/usr/lib;" -h /usr/local/bin/hello
> 

/usr/local/bin/hello is going to look at the absolute location, not that patch
within that specific sysroot.  Any files passed in should have the on-host path
names specified.  This allows for you to prelink an app based on rootfs where
the app is not present.

The normal mechanism used by the Yocto Project is:

[path]/prelink --root ${IMAGE_ROOTFS} -amR -N -c /etc/prelink.conf

This will process the entire contents of the IMAGE_ROOTFS.

--Mark

> error message:
> 
> prelink: /lib/libdl-2.15.so <http://libdl-2.15.so> is not present in any config
> file directories, nor was specified on command line
> prelink: /lib/libc-2.15.so <http://libc-2.15.so> is not present in any config
> file directories, nor was specified on command line
> prelink: /lib/libgcc_s.so.1 is not present in any config file directories, nor
> was specified on command line
> prelink: /lib/ld-2.15.so <http://ld-2.15.so> is not present in any config file
> directories, nor was specified on command line
> Laying out 1 libraries in virtual address space 41000000-50000000
> Assigned virtual address space slots for libraries:
> /usr/local/lib/libworld.so                                   41000000-410086d0
> prelink: Could not prelink /usr/lib/bin/localedef because its dependency
> /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/POSIX_V6_ILP32_OFFBIG because its
> dependency /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/zdump because its dependency
> /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/POSIX_V7_ILP32_OFF32 because its
> dependency /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/local/lib/libworld.so because its dependency
> /lib/libgcc_s.so.1 could not be prelinked
> prelink: Could not prelink /usr/local/bin/hello because its dependency
> /usr/local/lib/libworld.so could not be prelinked
> prelink: Could not prelink /usr/lib/bin/pldd because its dependency
> /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/zic because its dependency
> /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/sprof because its dependency
> /lib/libdl.so.2 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/POSIX_V6_ILP32_OFF32 because its
> dependency /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/gdbserver because its dependency
> /lib/libdl.so.2 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/XBS5_ILP32_OFFBIG because its dependency
> /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/XBS5_ILP32_OFF32 because its dependency
> /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/makedb because its dependency
> /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/pcprofiledump because its dependency
> /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/iconv because its dependency
> /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/locale because its dependency
> /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/gencat because its dependency
> /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/POSIX_V7_ILP32_OFFBIG because its
> dependency /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/rpcgen because its dependency
> /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/getent because its dependency
> /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/getconf because its dependency
> /lib/libc.so.6 could not be prelinked
> prelink: Could not prelink /usr/lib/bin/iconvconfig because its dependency
> /lib/libc.so.6 could not be prelinked
> 
> 
> prelink.conf
> 
> -l /lib 
> -h /lib 
> -l /usr/lib
> -h /usr/lib
> -l /usr/local/lib
> -h /usr/local/lib
> 
> 
> Now there is no error message from rtld and libworld.so seems to be found. But
> what's the problem with the folling libraries?
> 
> libdl-2.15.so <http://libdl-2.15.so>
> libc-2.15.so <http://libc-2.15.so>
> libgcc_s.so.1
> ld-2.15.so <http://ld-2.15.so>
> 
> 
> I can see them in this folder arm-2012.03/arm-none-linux-gnueabi/libc/lib:
> 
> -rwxr-xr-x 1 developer users  177212 10. Jun 18:43 ld-2.15.so <http://ld-2.15.so>
> lrwxrwxrwx 1 developer users      10 10. Jun 18:43 ld-linux.so.3 -> ld-2.15.so
> <http://ld-2.15.so>
> -rwxr-xr-x 1 developer users 1777390 10. Jun 18:43 libc-2.15.so
> <http://libc-2.15.so>
> lrwxrwxrwx 1 developer users      12 10. Jun 18:43 libc.so.6 -> libc-2.15.so
> <http://libc-2.15.so>
> -rwxr-xr-x 1 developer users   26841 10. Jun 18:43 libdl-2.15.so
> <http://libdl-2.15.so>
> lrwxrwxrwx 1 developer users      13 10. Jun 18:43 libdl.so.2 -> libdl-2.15.so
> <http://libdl-2.15.so>
> -rw-r--r-- 1 developer users     135 10. Jun 18:43 libgcc_s.so
> -rw-r--r-- 1 developer users 3190583 10. Jun 18:43 libgcc_s.so.1
> lrwxrwxrwx 1 developer users      13 10. Jun 18:43 libld-linux.so.3 -> ld-linux.so.3
> 
> 
> 
> I have also put the code on github for reference. Where is the mistake? - I
> think we are almost there :-)
> https://github.com/fnbk/prelink-cross-example/tree/shared-library
> 
> 
> Greetings
> Florian
> 
> 
>