Re: [announce] kexec for linux 2.6.6
From: Ulrich Drepper
Date: Wed May 12 2004 - 00:02:57 EST
> And if anyone has suggestions for handling a variable/moving
> syscall number (target), I'm interested in hearing them.
If all architectures would finally get a vdso implementation you could
just add the necessary stub in the vdso, add a symbol in the symbol
table of the vdso, and use in the userlevel code
sym = dlsym (RTLD_DEFAULT, "the_symbol_name")
If the returned value is not NULL the symbol exists.
I've described this many times as one of the huge advantages of vdsos,
hopefully this time it clicks.
â Ulrich Drepper â Red Hat, Inc. â 444 Castro St â Mountain View, CA â
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