Hi,
I have a C++ library that compiles some code
<https://github.com/agarny/libopencor/blob/137c9d09a5df1f4af92678ca0971d438f2be730a/src/misc/compiler.cpp#L39-L221>
on the fly using an ORC JIT and it all works fine when my library is built
for *X86* or *AArch64*, but not when it is built for *wasm32* (using
*wasm32-unknown-unknown-elf* as the target triple). For *wasm32*, it looks
like the code gets compiled but I can't look up its symbols
<https://github.com/agarny/libopencor/blob/137c9d09a5df1f4af92678ca0971d438f2be730a/src/misc/compiler.cpp#L223-L244>
and
therefore can't run that code.
In my browser’s console, I am getting:
libopencor.js:8 >>> Compiler::function("initialiseVariables")
libopencor.js:8 - Looking up 'initialiseVariables'...
libopencor.js:8 LLVM ERROR: section already has a defining function:
.text.initialiseVariables
put_char @ libopencor.js:8
libopencor.js:8 Aborted()
abort @ libopencor.js:8
libopencor.js:8 Uncaught (in promise) RuntimeError: Aborted(). Build with
-sASSERTIONS for more info.
at abort (libopencor.js:8:6013)
at _abort (libopencor.js:8:133020)
at libopencor.wasm:0x16693f
at libopencor.wasm:0x2589f4e
at libopencor.wasm:0xd66725
at libopencor.wasm:0x25782f9
at libopencor.wasm:0x1c426bf
at libopencor.wasm:0x25c0cce
at libopencor.wasm:0x296f2b6
at libopencor.wasm:0x9d071b
I imagine that I must be doing something wrong (when compiling to *wasm32*),
but I can’t tell what it is. I tried to google for some sample code that
does what I am after, but to no avail.
FWIW, the *wasm32* version of my library is built using Emscripten to generate
an ES6 module
<https://github.com/agarny/libopencor/blob/137c9d09a5df1f4af92678ca0971d438f2be730a/src/CMakeLists.txt#L154-L161>
(using *EXPORT_ES6 <https://emsettings.surma.technology/#EXPORT_ES6>*),
making it possible to use my library from both Node.js and from a Web
browser. It all works fine, except for the fact that I cannot look up
symbols and therefore run code that was compiled on the fly.
So, would anyone have any idea of what I might be doing wrong? The fact
that I am able to do what I want when targeting *X86* or *AArch64* tells me
that I should be able to do the same when targeting *wasm32*...?
Cheers, Alan.
--
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 emscripten-discuss+unsubscr...@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/emscripten-discuss/3f08dae1-570e-4cdf-ab37-72b5122c49dfn%40googlegroups.com.
