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Summary: This change fixes a bug where `obj2yaml` can in some cases produce YAML that causes `yaml2obj` to error. The ELF YAML document structure has a `Sections` mapping, which contains three mappings, all of which are optional: `Local`, `Global`, and `Weak.` Any one of these can be missing, but if all three are missing, then `yaml2obj` errors. This change allows YAML input for cases like this one. I have tested this with check-llvm and check-lld, and all tests passed. This change is the result of test failures while working on D39582, which introduces a `DynamicSymbols` mapping, which will be empty at times. Reviewers: compnerd, jakehehrlich, silvas, kledzik, mehdi_amini, pcc Reviewed By: compnerd Subscribers: silvas, llvm-commits Differential Revision: https://reviews.llvm.org/D39908 llvm-svn: 318428
11 lines
244 B
YAML
11 lines
244 B
YAML
# Ensure yaml2obj doesn't error on empty optional mappings, such as Symbols
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# RUN: yaml2obj %s -o %t
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!ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_DYN
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Machine: EM_X86_64
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Symbols:
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