On Tue, Aug 28, 2018 at 4:56 PM, Till Schneidereit <t...@tillschneidereit.net> wrote: > On Tue, Aug 28, 2018 at 3:20 PM Mike Hommey <m...@glandium.org> wrote: >> We don't LTO across languages on any platform yet. Rust is LTOed on all >> platforms, which removes a bunch of its symbols. Everything that is >> exposed for C/C++ from Rust, though, is left alone. That's likely to >> stay true even with cross-language LTO, because as far as the linker is >> concerned, those FFI symbols might be used by code that link against >> libxul, so it would still export them. We'd essentially need the >> equivalent to -fvisibility=hidden for Rust for that to stop being true.
Exporting Rust FFI symbols from libxul seems bad not just for binary size but also in terms of giving contact surface to invasive third-party Windows software. Do we have a bug on file tracking the hiding of FFI symbols from the outside of libxul? -- Henri Sivonen hsivo...@mozilla.com _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
