Hello, RE2 - it is "Resident Evil 2" game?
Dmitry Kovalenko. вт, 20 авг. 2019, 4:27 Adriano dos Santos Fernandes <adrian...@gmail.com>: > Hi! > > When linking optimized static build of re2 with Firebird in Linux, crash > happens when destroying some RE2 objects. > > I have tracked the problem: > - Firebird (libEngine or executables) defines new/delete operators and > hides them through version script > - re2 uses libstdc++ std::string (for example), that uses basic_string > with default allocator > - libstdc++ exports basic_string template with default allocator > - re2 then allocates std::string internal objects with libstdc++ new > operator > - re2 object is destroyed and calls Firebird's delete operator > > It seems there are three ways to fix the problem: > > 1) Link Firebird executables and shared libraries with -static-libstdc++. > > 2) Link shared re2 within Firebird. This is what happens with ICU, it > then calls libstdc++ operator new/delete. But since re2 is C++ library I > prefer to not do that and always static link the internal version. > > 3) Exports new/delete operators in Firebird version scripts. Not sure > this is good thing and will work always. > > For me the better option is (1) and this will also avoid problems when > installing binaries compiled in different OS versions. > > AFAIK Windows also uses dynamic std c++ library and theoretically be > susceptible to the problem, but at least in basic tests it works. > However I'm not 100% sure it has no problem. > > Comments, please. > > > Adriano > > > Firebird-Devel mailing list, web interface at > https://lists.sourceforge.net/lists/listinfo/firebird-devel >
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