[llvm-dev] Bug 23231 - support symbol version script / --version-script option

Rafael EspĂ­ndola via llvm-dev llvm-dev at lists.llvm.org
Wed Jun 1 15:46:11 PDT 2016

On 1 June 2016 at 15:37, Rui Ueyama <ruiu at google.com> wrote:
> George,
> If you have bandwidth to work on it, please go ahead. One think I'd note is
> to start with minimal implementation that is sufficient enough to read and
> create versioned symbols for minimal version script file. We do not need any
> wildcard pattern matching (except "local: *", but even this can be
> implemented later). The initial implementation shouldn't support version
> hierarchies as well.
> As to algorithm, implement an algorithm that works O(n) where n is the
> number of symbols in a version script file. That means you want to iterate
> over symbols in a version script file instead of interating over symbols in
> the linker's symbol table.

I would also skip matching version in names in the first version (@ver
and @@ver).


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