[PATCH] D132743: [ELF] Add ability to get a symbol by name from the GNU_HASH table section

[Joseph Huber via Phabricator via llvm-commits]

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The `SHT_GNU_HASH` section contains information used to identify symbols
using only their name. Previous support was added for the sys-V hash
table section. This patch expands this support to apply to the GNU hash
table as well. So now this function works with both hash table methods.
Implementation derived from description at
https://flapenguin.me/elf-dt-gnu-hash.

Depends on D132696 <https://reviews.llvm.org/D132696>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D132743

Files:
  llvm/include/llvm/Object/ELF.h
  llvm/unittests/Object/ELFObjectFileTest.cpp

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