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I'm working with an embedded Linux deployment and am using a cross compiler tool chain that doesn't compile I2C library function calls.
How do I determine the precise versions of the libraries on the system so that I may rebuild the tool chain?
I don't intend to replace the libraries deployed, as I do know they work (including I2C), so I believe I need the following:
I think I can assume from the following that the binutils library is version 2.2.5. The kernel is modded for which I've the source.
root@dev-box />ls /lib/ -al
drwxrwxrwx 3 root root 1024 Apr 27 09:44 .
drwxrwxrwx 14 root root 1024 Jan 1 1970 ..
-rwxrwxrwx 1 root root 105379 Jan 1 1970 ld-2.2.5.so
lrwxrwxrwx 1 root root 16 Jan 1 1970 ld-linux.so.2 -> /lib/ld-2.2.5.so
lrwxrwxrwx 1 root root 16 Jan 1 1970 ld.so.1 -> /lib/ld-2.2.5.so
-rwxrwxrwx 1 root root 1288601 Jan 1 1970 libc.so.6
-rwxrwxrwx 1 root root 25441 Jan 1 1970 libcrypt.so.1
-rwxrwxrwx 1 root root 14303 Jan 1 1970 libdl.so.2
-rwxrwxrwx 1 root root 36800 Jan 1 1970 libgcc_s.so.1
-rwxrwxrwx 1 root root 530401 Jan 1 1970 libm.so.6
-rwxrwxrwx 1 root root 86626 Jan 1 1970 libnsl.so.1
-rwxrwxrwx 1 root root 17533 Jan 1 1970 libnss_dns.so.2
-rwxrwxrwx 1 root root 46324 Jan 1 1970 libnss_files.so.2
-rwxrwxrwx 1 root root 98633 Jan 1 1970 libpthread.so.0
-rwxrwxrwx 1 root root 69966 Jan 1 1970 libresolv.so.2
-rwxrwxrwx 1 root root 12897 Jan 1 1970 libutil.so.1
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Or from the command line, you can first search for the name of the associated package using dpkg -S /usr/lib/libnuma. so. 1 , which probably returns libnuma1 as the package name. Then run apt-cache showpkg libnuma1 to find the package version.
so. 6 you can call the so file with the –version to get its version information e.g.: lsof -p $$ | grep libc | awk ' { print $NF" --version"; } ' | sh GNU C Library stable release version 2.11.
So, in a way, we can have multiple versions of glibc on our machine and have a libglib-2.0.so link to a specific version. The linker will look for the soname field in the shared object and embed it in the resulting binary. The soname field specifies the filename for our target shared library.
To know the current installed version of glibc, please compile and run the following C code.
#include <stdio.h>
#include <gnu/libc-version.h>
int main (void) { puts (gnu_get_libc_version ()); return 0; }
Cheers !!!
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