On 04/20/2016 07:02 AM, Yury Gribov wrote:
Pedro,
Do you think the above is doable for gdb?
I don't know -- I'm already juggling too many balls in the
air, and I'm afraid that if that depends on me, it'll take a
while before I'll manage to try.
Since gdb's use of private symbols is not an isolated incident,
I don't think we should try to clean up all packages that make
use of private symbols, in a rush. Instead, I think readline
needs to take a staged approach:
- Export all the private symbols that programs are using today.
Simply accept today's reality. The dynamic symbol table of
libreadline.so still shrinks, precedent for visibility
annotations is still set, and private symbol leakage
is contained, because future software will no longer be
able to abuse all the other private symbols that are
not exported.
- In some future release, stop exporting the symbols.
That would of course leave the
problem of linking older gdb with new readline which will need to be
resolved by distros.
Right.
Thanks,
Pedro Alves