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Rollup merge of #131830 - hoodmane:emscripten-wasm-eh, r=workingjubilee

Add support for wasm exception handling to Emscripten target

This is a draft because we need some additional setting for the Emscripten target to select between the old exception handling and the new exception handling. I don't know how to add a setting like that, would appreciate advice from Rust folks. We could maybe choose to use the new exception handling if `Ctarget-feature=+exception-handling` is passed? I tried this but I get errors from llvm so I'm not doing it right.
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Jacob Pratt 2025-01-06 22:04:13 -05:00 committed by GitHub
commit 4e4a93c2dd
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21 changed files with 131 additions and 10 deletions

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@ -37,6 +37,7 @@ const GATED_CFGS: &[GatedCfg] = &[
(sym::sanitizer_cfi_normalize_integers, sym::cfg_sanitizer_cfi, Features::cfg_sanitizer_cfi),
// this is consistent with naming of the compiler flag it's for
(sym::fmt_debug, sym::fmt_debug, Features::fmt_debug),
(sym::emscripten_wasm_eh, sym::cfg_emscripten_wasm_eh, Features::cfg_emscripten_wasm_eh),
];
/// Find a gated cfg determined by the `pred`icate which is given the cfg's name.