This patch adds new command line option --undefined-glob to lld.
That option is a variant of --undefined but accepts wildcard
patterns so that all symbols that match with a given pattern are
handled as if they were given by -u.
-u foo is to force resolve symbol foo if foo is not a defined symbol
and there's a static archive that contains a definition of symbol foo.
Now, you can specify a wildcard pattern as an argument for --undefined-glob.
So, if you want to include all JNI symbols (which start with "Java_"), you
can do that by passing --undefined-glob "Java_*" to the linker, for example.
In this patch, I use the same glob pattern matcher as the version script
processor is using, so it does not only support * but also ? and [...].
Discussion thread: http://lists.llvm.org/pipermail/llvm-dev/2019-June/132961.html