Notice (2018-05-24): bugzilla.xamarin.com is now in
Please join us on
Visual Studio Developer Community and in the
Mono organizations on
GitHub to continue tracking issues. Bugzilla will remain
available for reference in read-only mode. We will continue to work
on open Bugzilla bugs, copy them to the new locations
as needed for follow-up, and add the new items under Related
Our sincere thanks to everyone who has contributed on this bug
tracker over the years. Thanks also for your understanding as we
make these adjustments and improvements for the future.
Please create a new report on
GitHub or Developer Community with
your current version information, steps to reproduce, and relevant error
messages or log files if you are hitting an issue that looks similar to
this resolved bug and you do not yet see a matching new report.
Mono exports several symbols with fairly generic names, which sometimes causes conflicts with third-party libraries defining the same symbols.
Here is a current list: https://gist.github.com/rolfbjarne/36e50db43d3d29eed8e8 (usually it's some of the Win32 symbols which cause problems).
We need a way to rename these symbols for iOS in order to be a good citizen. My guess is that this may affect Android as well, so a generic solution would be preferable.
I've tried hiding the non-prefixed symbols by merging the object files in the static mono library using ld (ld -r -exported_symbols_list <fileOfPublicSymbols> *.o), and while the resulting library works at least for a simple test case, the debug symbols are removed, and I could not find a way to prevent that (or add them back).
So I've come to the conclusion that the only solution is to fix the static mono library during the build, by either:
* Make consumers able to specify a custom mono-remap.h to remap any symbol.
* Make it a policy to only export symbols with a fixed set of prefixes.
I'm willing to implement the solution, once we've decided what to do.
Fixed the io-layer symbols at least, those usually are the ones causing the most problems.
In mono master 508417264359e6df50c9f9d86adad19b9535cc1b.
Updated list at https://gist.github.com/luhenry/37eb32f32a6a3d821f2e1ee832dfbb92 with Mono 18.104.22.168 (master/798c5efa52a)
Some of these symbols are global variables that could (should?) be prefixed with `mono_`.
Fixed in master with https://github.com/mono/mono/commit/34b4d35fb7882632d8da48ea8b47c3f9c98bf069