[llvm] [WebAssembly] Support multiple `.init_array` fragments when writing Wasm objects (PR #111008)

[Sam Clegg via llvm-commits]

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@@ -1769,6 +1769,11 @@ uint64_t WasmObjectWriter::writeOneObject(MCAssembler &Asm,
       WS.setIndex(InvalidIndex);
       continue;
     }
+    // Contents of .init_array sections are handled elsewhere.
+    if (WS.isDefined() &&
+        WS.getSection().getName().starts_with(".init_array")) {
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sbc100 wrote:

What will happen though if there is a reference to the `p_init` symbol though, either within the object itself, or in some other object.   Would this result in a relocation with against a non-existent symbol?

https://github.com/llvm/llvm-project/pull/111008