On 04/04/2012 02:55 AM, Mohd. Bilal Husain wrote:
Passed a dumb sample rust bitcode to emscripten, got js functions#.
Realized I need to run on core modules too for printing simple hello
world. Took io from libcore, decimated code to avoid few build errors,
emcc throws error
Unclear type in struct
Anyways, need to figure out how to build native modules and core lib,
std lib; and how to map these modules to imports in a sample hello-world.
I did some tinkering this weekend and found the following:
* Rust code needs to be compiled for 32-bit targets. Emscripten is not
heavily tested for 64-bit targets.
* rustc should be invoked with --no-asm-comments because emscripten does
not like asm
* We were generating some bogus ll asm, fixed by #2167
* Emscripten doesn't handle quoted labels, fixed in my branch:
https://github.com/brson/emscripten/tree/rust
* Emscripten doesn't handle the `frem` instruction, also in my branch
* Emscripten doesn't handle empty structs in some situations, filed
here: https://github.com/kripken/emscripten/issues/364
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