The EXE file compiled by rust cannot export related export functions

[zofoc]

I encountered a problem with the rust compiler. In the bin program made by rust, I exported a function in the main unit, but I couldn't find the exported function with a third-party tool. I also use several other languages to do the same thing, and I can find the relevant exported functions. The function is simple in the following format:
#[no_mangle]
pub extern "C" fn func1(data:String)->i32{}
My final question is, does our Rust compile exe files that cannot export related export functions? This is the only language I have found that exe files cannot export functions. Does trust add such functions

[nagisa]

This is probably a duplicate of #84161

[zofoc]

"This is a tracking issue for the RFC "2841" (rust-lang/rfcs#2841).
The feature gate for the issue is #![feature(export_executable_symbols)]. " and "Add the ability to export symbols from executables, not just dylibs, via a new compiler flag: -C export-executable-symbols"" , But none of them worked

[csmoe]

Could you test your code with rustc -Zexport-executable-symbols? it's not stabilized yet, and #![feature(export_executable_symbols)] is unneeded.

[jyn514]

I'm going to close this as a duplicate of #84161; feel free to reopen if you try -Zexport-executable-symbols and it doesn't fix your problem.