wasm-opt demangling

[Stanislav]

Hi,

I generated WASM with C++ function names (DEMANGLE_SUPPORT is enabled).

After using wasm-opt, all symbolic names are replaced with numeric indices.

I tested wasm-opt with not optimizing parameters:

wasm-opt --optimize-level 0 --shrink-level 0 source.wasm -o dest.wasm

but the result hasn’t changed.

Is there any way to save demangle C++ function names when using wasm-opt?

Thanks

[Alon Zakai]

wasm-opt has a "-g" parameter, which makes it save debug info like function names. Does adding -g fix it?

(Also to get function names in a wasm file in the first place, emcc must be run with --profiling, or --profiling-funcs, -g, or a similar option.)

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[Stanislav]

Adding "-g" works prefectly.
Thank you.

On Tue, Nov 26, 2019 at 1:15:55 Alon Zakai wrote:

wasm-opt has a "-g" parameter, which makes it save debug info like function names. Does adding -g fix it?

(Also to get function names in a wasm file in the first place, emcc must be run with --profiling, or --profiling-funcs, -g, or a similar option.)

On Tue, Nov 26, 2019 at 7:46 PM Stanislav <sta...@gmail.com> wrote:

Hi,

I generated WASM with C++ function names (DEMANGLE_SUPPORT is enabled).

After using wasm-opt, all symbolic names are replaced with numeric indices.

I tested wasm-opt with not optimizing parameters:

wasm-opt --optimize-level 0 --shrink-level 0 source.wasm -o dest.wasm

but the result hasn’t changed.

Is there any way to save demangle C++ function names when using wasm-opt?

Thanks

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