[PATCH] D60882: [WebAssembly] Error on relocations against undefined data symbols.

[Sam Clegg via Phabricator via llvm-commits]

sbc100 created this revision.
Herald added subscribers: llvm-commits, sunfish, aheejin, jgravelle-google, dschuff.
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We can't meaningfully resolve certain types of relocations against
undefined data symbols.  Previously when `--allow-undefined` was used
we were treating such relocation much like weak data symbols and
simply inserting zeros.  This change turns such use cases in to an
error.

This means that `--allow-undefined` is no longer effective for data
symbols.

Fixes https://bugs.llvm.org/show_bug.cgi?id=40364


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D60882

Files:
  lld/test/wasm/undefined-data.ll
  lld/wasm/InputFiles.cpp
  lld/wasm/Writer.cpp

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