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 Tue, 14 Apr 2020 21:01:13 +0300 (MSK)
From: "Timur Safin" <tsafin@tarantool.org>
References: <cover.1586650013.git.v.shpilevoy@tarantool.org>
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Date: Tue, 14 Apr 2020 21:01:10 +0300
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Subject: Re: [Tarantool-patches] [PATCH 00/43] Unhide symbols
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To: 'Konstantin Osipov' <kostja.osipov@gmail.com>, 'Vladislav Shpilevoy' <v.shpilevoy@tarantool.org>
Cc: tarantool-patches@dev.tarantool.org

: Mons will be happy simply if we switch back to default gcc linking
: options, -fvisibility=3Ddefault, which is basically dropping
: -exported_symbols_list.
:=20
: --
: Konstantin Osipov, Moscow, Russia

Nope, this won't work the desired way - linker will get rid of symbol if =
it's default visible and unreferenced in the executable.

We used to have FFI hack for such case, which was deleted because =
explicitly exported symbol (via loader list) will be retained in the =
binary. If we explicitly export them in the code - we will get to the =
same result - unreferenced/"unused" symbol will be available for =
external access (e.g. from LuaJIT ffi).=20


Timur