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* [yaml2obj][obj2yaml] - Add support for dumping/parsing .dynamic sections.George Rimar2019-02-091-10/+17
| | | | | | | | | This teaches the tools to parse and dump the .dynamic section and its dynamic tags. Differential revision: https://reviews.llvm.org/D57691 llvm-svn: 353606
* [elfabi] Add support for reading dynamic symbols from binariesArmando Montanez2019-01-241-2/+3
| | | | | | | | | | | | | | | | | This patch adds initial support for reading dynamic symbols from ELF binaries. Currently, STT_NOTYPE, STT_OBJECT, STT_FUNC, and STT_TLS are explicitly supported. Other symbol types are mapped to ELFSymbolType::Unknown to improve signal/noise ratio. Symbols must meet two criteria to be read into in an ELFStub: - The symbol's binding must be STB_GLOBAL or STB_WEAK. - The symbol's visibility must be STV_DEFAULT or STV_PROTECTED. This filters out symbols that aren't of interest during compile-time linking against a shared object. This change uses DT_HASH and DT_GNU_HASH to determine the size of .dynsym. Using hash tables to determine the number of symbols in .dynsym allows llvm-elfabi to work on binaries without relying on section headers. Differential Revision: https://reviews.llvm.org/D56031 llvm-svn: 352121
* [elfabi] Add support for reading DT_NEEDED from binariesArmando Montanez2019-01-181-0/+47
This patch gives elfabi the ability to read DT_NEEDED entries from ELF binaries to populate NeededLibs in TextAPI's ELFStub. Differential Revision: https://reviews.llvm.org/D55852 llvm-svn: 351592
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