Not loading VDSO.so is one of the famous bugs you encounter while using gdb and glibc >2.2.
No, it's not. The problem here is simply a useless warning, which you can safely ignore.
I found a work-around here Here, but I didn't understand it so how to apply it.
You didn't find a "workaround". You found a patch to GDB, which disables the warning.
To apply it, use the patch
command, and then build your own GDB. But it is much simpler to just ignore the warning in the first place.
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