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| author | Sam Clegg <sbc@chromium.org> | 2024-08-19 21:52:17 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-08-19 21:52:17 -0700 |
| commit | 2a6136e552d24b6bf665c42a6e32efc0b2d88fbf (patch) | |
| tree | b7d9248a47553484ea96fd958bd0cbc7482f385b /lld/wasm/Writer.cpp | |
| parent | 5403123197f8e331d3c2c24d82439ca1fe7e702d (diff) | |
| download | llvm-upstream/main.zip llvm-upstream/main.tar.gz llvm-upstream/main.tar.bz2 | |
[llvm-objcopy][WebAssembly] Allow --strip-debug to operate on relocatable files. (#102978)upstream/main
This change is enough to allow `--strip-debug` to work on object files,
without breaking the relocation information or symbol table.
A more complete version of this change would instead reconstruct the
symbol table and relocation sections, but that is much larger change.
Bug: #102002
Diffstat (limited to 'lld/wasm/Writer.cpp')
| -rw-r--r-- | lld/wasm/Writer.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lld/wasm/Writer.cpp b/lld/wasm/Writer.cpp index 6a66a29..6beef81 100644 --- a/lld/wasm/Writer.cpp +++ b/lld/wasm/Writer.cpp @@ -138,6 +138,11 @@ void Writer::calculateCustomSections() { // Exclude COMDAT sections that are not selected for inclusion if (section->discarded) continue; + // Ignore empty custom sections. In particular objcopy/strip will + // sometimes replace stripped sections with empty custom sections to + // avoid section re-numbering. + if (section->getSize() == 0) + continue; StringRef name = section->name; // These custom sections are known the linker and synthesized rather than // blindly copied. |