Have a look at EMSCRIPTEN_KEEPALIVE: https://emscripten.org/docs/api_reference/emscripten.h.html#c.EMSCRIPTEN_KEEPALIVE, this prevents a C/C++ function from being removed even when it isn't referenced by other C/C++ code (normally this is used to call C functions from the JS side).
On Thursday, 2 May 2019 08:16:43 UTC+2, Duan Bing wrote: > > I declare an external function in C source file, but never used by the > code, then compile it to wasm by EMCC. there is no doubt the external > function will be eliminated by the compiler. > > Is there any approach to keep this external function and then be compiled > to an import function in wasm? > > The motivation to remain the external function is that I want to insert > some wasm code in the wasm file after it's generated. > > Thanks all! > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
