ERROR: ld.so: object LD_PRELOAD cannot be preloaded: ignored
The linker takes some environment variables into account. one is LD_PRELOAD
from man 8 ld-linux
:
LD_PRELOAD
A whitespace-separated list of additional, user-specified, ELF
shared libraries to be loaded before all others. This can be
used to selectively override functions in other shared
libraries. For setuid/setgid ELF binaries, only libraries in
the standard search directories that are also setgid will be
loaded.
Therefore the linker will try to load libraries listed in the LD_PRELOAD
variable before others are loaded.
What could be the case that inside the variable is listed a library that can't be pre-loaded. look inside your .bashrc
or .bash_profile
environment where the LD_PRELOAD
is set and remove that library from the variable.
If you want to make sure that the library is loaded if and only if the program lunar-calendar-gtk
is launched, you can apply this:
You set the environment variable per command by prefixing the command with it:
$ LD_PRELOAD="liblunar-calendar-preload.so" printenv "LD_PRELOAD"
liblunar-calendar-preload.so
$ printenv "LD_PRELOAD"
$
You can then choose to put this in a shell script and make lunar-calendar-gtk
a symlink to this shell script, replaceing the original referencee. This effectively makes sure that the library is loaded everytime the original application is executed.
You will have to rename the original lunar-calendar-gtk
to something else, which might not be too intriguing as it possibly may cause issues with uninstallation and upgrading. However, I found it useful with a former version of Skype.
Thanks for the responses. I think I've solved the problem just now.
Since LD_PRELOAD is for setting some library proloaded, I check the library that ld preloads with LD_PRELOAD, one of which is "liblunar-calendar-preload.so", that is not existing in the path "/usr/lib/liblunar-calendar-preload.so", but I find a similar library "liblunar-calendar-preload-2.0.so", which is a difference version of the former one.
Then I guess maybe liblunar-calendar-preload.so was updated to a 2.0 version when the system updated, leaving LD_PRELOAD remain to be "/usr/lib/liblunar-calendar-preload.so". Thus the preload library name was not updated to the newest version.
To avoid changing environment variable, I create a symbolic link under the path "/usr/lib"
sudo ln -s liblunar-calendar-preload-2.0.so liblunar-calendar-preload.so
Then I restart bash, the error is gone.
It means the path you input caused an error. In your LD_PRELOAD
command, modify the path like the error tips:
/usr/lib/liblunar-calendar-preload.so
You can check /etc/ld.so.preload file content
I fix it by:
echo "" > /etc/ld.so.preload