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Auto merge of #43344 - tlively:wasm-debug, r=alexcrichton

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Pass debugging arguments to emcc

Tells emcc to enable assertions and debugging information for
wasm32-experimental-emscripten. This makes the codegen issues caused by
LLVM bug 33824 manifest more frequently at runtime and improves the wasm
debugging experience.
This commit is contained in:
bors 2017-07-22 11:02:49 +00:00
commit e49a9483de
1 changed files with 4 additions and 1 deletions
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5
src/librustc_back/target/wasm32_experimental_emscripten.rs
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@ -18,7 +18,10 @@ pub fn target() -> Result<Target, String> {
vec!["-s".to_string(),
"WASM=1".to_string(),
"-s".to_string(),
"ERROR_ON_UNDEFINED_SYMBOLS=1".to_string()]);
"ASSERTIONS=1".to_string(),
"-s".to_string(),
"ERROR_ON_UNDEFINED_SYMBOLS=1".to_string(),
"-g3".to_string()]);
let opts = TargetOptions {
linker: cmd("emcc"),