[PATCH] D76352: [llvm-readobj] Derive dynamic symtab size from hash table

[James Henderson via Phabricator via llvm-commits]

jhenderson created this revision.
jhenderson added reviewers: grimar, MaskRay, rupprecht.
Herald added a subscriber: emaste.
Herald added a reviewer: espindola.
Herald added a reviewer: alexshap.
Herald added a project: LLVM.

If the section headers have been removed by a tool such as llvm-objcopy or llvm-strip, previously llvm-readobj/llvm-readelf would not dump the dynamic symbols when --dyn-symbols was specified. However, the nchain value of the DT_HASH data specifies the number of dynamic symbols, so if it is present, we can use that. This patch implements this behaviour.

Fixes https://bugs.llvm.org/show_bug.cgi?id=45089.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D76352

Files:
  llvm/test/tools/llvm-readobj/ELF/all.test
  llvm/test/tools/llvm-readobj/ELF/dyn-symbols.test
  llvm/tools/llvm-readobj/ELFDumper.cpp

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