I have an executable file called reg with the following shared library dependencies:
[terminal]$ ldd ./reg linux-vdso.so.1 => (0x00007ffc40d90000) libpthread.so.0 => /lib64/libpthread.so.0 (0x0000003be0c00000) /usr/dep/packages/opt/intel/mkl/10.0.2.018/lib/em64t/libmkl_intel_lp64.so => not found
When executing the binary I get the following:
[terminal]$ ./reg ./reg: error while loading shared libraries: /usr/dep/packages/opt/intel/mkl/10.0.2.018/lib/em64t/libmkl_intel_lp64.so: cannot open shared object file: No such file or directory.
The thing is that I don’t have the administrative rights to create the specified directory path and place the library there. Moreover, I don’t have the source code so I can’t re-compile it either but I do have libmkl_intel_lp64.so library stored somewhere else. I tried using LD_PRELOAD environment variable but it still needs that library in that specific location. Is there a solution how could I solve this problem?
Thank you!
Answer
I don’t have the same binary you have but I made a little test and it
seems that patchelf
can work here. I have a hello
binary compiled
with -Wl,-rpath=/home/ja/c/hello-puts/make/lib
and libtest.so
as a
dependency:
$ ldd hello
linux-vdso.so.1 (0x00007ffedb4f0000)
libtest.so => /home/ja/c/hello-puts/make/lib/libtest.so (0x00007f04a2437000)
libc.so.6 => /lib64/libc.so.6 (0x00007f04a200f000)
/lib64/ld-linux-x86-64.so.2 (0x0000564a42e36000)
I run patchelf
with --make-needed-absolute
using patchelf
from https://github.com/dezgeg/patchelf/:
$ patchelf --make-needed-absolute hello
$ ldd hello
linux-vdso.so.1 (0x00007fff9baa3000)
/home/ja/c/hello-puts/make/lib/libtest.so (0x00007f81bd0e2000)
libc.so.6 => /lib64/libc.so.6 (0x00007f81bccba000)
/lib64/ld-linux-x86-64.so.2 (0x0000556714bb5000)
I think that’s what you have. I copied hello
to other machine and:
$ ldd ./hello
linux-vdso.so.1 => (0x00007fff92e7d000)
/home/ja/c/hello-puts/make/lib/libtest.so => not found
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007ff381c9b000)
/lib64/ld-linux-x86-64.so.2 (0x00007ff382065000)
I first removed a needed libtest.so
dependency:
$ patchelf --remove-needed /home/ja/c/hello-puts/make/lib/libtest.so hello
$ ldd hello
linux-vdso.so.1 => (0x00007ffdcedfb000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f60705c5000)
/lib64/ld-linux-x86-64.so.2 (0x00007f607098f000)
I tried to run hello
, it started but due to lazy binding done by the
interpreter only the first line of the expected output was shown:
$ ./hello
hello world
./hello: symbol lookup error: ./hello: undefined symbol: foo
I added libtest.so
again but without an absolute path:
$ patchelf --add-needed libtest.so hello
$ ldd hello
linux-vdso.so.1 => (0x00007ffda155c000)
libtest.so => not found
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007ffbdb8c3000)
/lib64/ld-linux-x86-64.so.2 (0x00007ffbdbc8d000)
I copied libtest.so
to $PWD
and was able to start hello
:
$ LD_LIBRARY_PATH=. ./hello
hello world
inside foo()
Attribution
Source : Link , Question Author : Donatas , Answer Author : Arkadiusz Drabczyk