--set-interpreter problem (ubuntu 14 64 bits)

[YannSuissa]

Hi,

Here is what i do :

patchelf --set-interpreter libs_myexe/ld-linux-x86-64.so.2 ./myexe

After it i check with :

ldd myexe | grep ld-linux
libs_myexe/ld-linux-x86-64.so.2 => /lib64/ld-linux-x86-64.so.2 (0x00007f2b025b4000)

It doesn't use the right on when i start the program, because the new path should be the contrary?
ie : /lib64/ld-linux-x86-64.so.2 => libs_myexe/ld-linux-x86-64.so.2

I do something wrong?
Thanks

[mburr]

I think that what's happening is that ldd is a script that ultimately runs /lib64/ld-linux-x86-64.so.2 to produce the output about the library dependencies. The line of output that mentions ld-linux will always report the /lib64/ld-linux-x86-64.so.2 as the target because it's the loader that is actually loaded and running when you invoke ldd.

See http://unix.stackexchange.com/a/76514/7084 for some more details.

Use

readelf -l  myexe  | grep interpreter

to reliably see what's in the executable file, and use ls -l on what's displayed there if you want to know if and what the name is ultimately linked to.