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copied!<p>So the solution we have for now is as follows:</p> <p>test.cpp</p> <pre><code>#include <cmath> #include <vector> #include <typeinfo> struct private_struct { float f; }; float private_function(float f) { return std::abs(f); } void other_private_function() { std::vector<private_struct> f(1); } extern "C" void __attribute__ ((visibility ("default"))) public_function2() { other_private_function(); } extern "C" float __attribute__ ((visibility ("default"))) public_function1(float f) { return private_function(f); } </code></pre> <p>exports.version</p> <pre><code>LIBTEST { global: public*; local: *; }; </code></pre> <p>compiled with</p> <pre><code>g++ -shared test.cpp -o libtest.so -fvisibility=hidden -fvisibility-inlines-hidden -s -Wl,--version-script=exports.version </code></pre> <p>gives </p> <pre><code>00000000 A LIBTEST w _Jv_RegisterClasses U _Unwind_Resume U std::__throw_bad_alloc() U operator delete(void*) U operator new(unsigned int) w __cxa_finalize w __gmon_start__ U __gxx_personality_v0 000005db T public_function1 00000676 T public_function2 </code></pre> <p>Which is fairly close to what we're looking for. There are a few gotchas though:</p> <ul> <li>We have to ensure we don't use the "exported" prefix (in this simple example "public", but obviously something more useful in our case) in the internal code.</li> <li>Many symbol names still end up in the string table, which appears to be down to RTTI, -fno-rtti makes them go away in my simple tests, but is a rather nuclear solution.</li> </ul> <p>I'm happy to accept any better solutions anyone comes up with!</p>

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