[all-commits] [llvm/llvm-project] 74c611: [lld][WebAssembly] Skip BSS when combining data se...

[Sam Clegg via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 74c6111631ceb14a70bf833da66df9fb5d871436
      https://github.com/llvm/llvm-project/commit/74c6111631ceb14a70bf833da66df9fb5d871436
  Author: Sam Clegg <sbc at chromium.org>
  Date:   2025-02-20 (Thu, 20 Feb 2025)

  Changed paths:
    M lld/test/wasm/data-segments.ll
    M lld/wasm/OutputSections.cpp
    M lld/wasm/Writer.cpp

  Log Message:
  -----------
  [lld][WebAssembly] Skip BSS when combining data segments (#127735)

In most circumstances BSS segments are not required in the output binary
but combineOutputSegments was erroneously including them. This meant
that PIC binaries were including the BSS data as zero in the binary.

Fixes: https://github.com/emscripten-core/emscripten/issues/23683



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