[clang] [libunwind] [lld] [llvm] [wasm] Toolchain support for `wasm32-wali-linux-musl` target (PR #156087)

[Sam Clegg via llvm-commits]

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@@ -249,6 +249,9 @@ aliasname:                                                                     \
 #define WEAK_ALIAS(name, aliasname)
 #define NO_EXEC_STACK_DIRECTIVE
 
+#elif defined(__wasm__)
+#define NO_EXEC_STACK_DIRECTIVE
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sbc100 wrote:

This file looks like its only being included from `UnwindRegistersRestore.S` and `UnwindRegistersSave.S`, neither of which looks like they have wasm support.

Maybe the `#if !defined(__USING_SJLJ_EXCEPTIONS__) && !defined(__wasm__)` should be moved up so this header doesn't get included instead?

https://github.com/llvm/llvm-project/pull/156087