how to choose dynamic linker for a.out file?

surfer41 · 06-30-2008, 09:29 PM

How can i tell gcc to use a different dynamic-linker while linking
a.out file? I mean i've installed new gcc in a separate folder.
The newly installed gcc uses /lib/ld-linux.so.2 which i don't want.
Is there anyway to choose another linker for a.out without chroot?

sk8guitar · 07-01-2008, 10:17 AM

any reason you want to use something other than ld?

surfer41 · 07-01-2008, 01:18 PM

> any reason you want to use something other than ld?

I am trying to install gnome-2.22. i installed gcc,binutils,glib etc.
on a separate folder. when i invoke gcc it uses the default(old)
dynamic linker. So i was wondering how can i make the new gcc use
new dynamic linker by default?

bigearsbilly · 07-01-2008, 06:20 PM

why not just install the new gcc etc. as default?
it should be backward compatible.

osor · 07-03-2008, 02:32 PM

You should be able to modify such conditions (at least temporarily) using a specs file. For example,

Code:

$ gcc -dumpspecs | sed -e 's#/lib/ld-linux.so.2#/path/to/other/loader#g' > specfile
$ gcc -specs=specfile -o test test.c
$ readelf -l test | grep "Requesting program interpreter"
      [Requesting program interpreter: /path/to/other/loader]
$ CC="gcc -specs=specfile" ./configure
$ make
…

A more permanent solution would be to pass the correct configure options when building your toolchain in the first place.