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llvm-project/llvm/test/tools/llvm-objdump/eh_frame_zero_cie.test

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[DebugInfo] Support zero-length CIE in the _eh_frame parser MCJIT emits zero-length CIE at the end of the _eh_frame section. This change ensures that parser inside DebugInfo will not crash and correctly record such cases. We are now recording DW_EH_PE_omit as a default value for FDE and LSDA encodings. Also Offset != EndAugmentationOffset assertion check will only happen if augmentation string had 'z' letter in it. Differential Revision: http://reviews.llvm.org/D16588 llvm-svn: 258931
2016-01-27 22:05:35 +08:00
# RUN: llvm-objdump -dwarf=frames %p/Inputs/eh_frame_zero_cie.o 2>/dev/null | FileCheck %s
# CHECK: .eh_frame contents:
[DebugInfo] Fix dumping CIE ID in .eh_frame sections. We do not keep the actual value of the CIE ID field, because it is predefined, and use a constant when dumping a CIE record. The issue was that the predefined value is different for .debug_frame and .eh_frame sections, but we always printed the one which corresponds to .debug_frame. The patch fixes that by choosing an appropriate constant to print. See the following for more information about .eh_frame sections: https://refspecs.linuxfoundation.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/ehframechpt.html Differential Revision: https://reviews.llvm.org/D73627
2020-01-29 22:28:46 +08:00
# CHECK: 00000000 00000000 00000000 CIE
[DebugInfo] Support zero-length CIE in the _eh_frame parser MCJIT emits zero-length CIE at the end of the _eh_frame section. This change ensures that parser inside DebugInfo will not crash and correctly record such cases. We are now recording DW_EH_PE_omit as a default value for FDE and LSDA encodings. Also Offset != EndAugmentationOffset assertion check will only happen if augmentation string had 'z' letter in it. Differential Revision: http://reviews.llvm.org/D16588 llvm-svn: 258931
2016-01-27 22:05:35 +08:00
# CHECK: Version: 0
# CHECK: Augmentation: ""
# CHECK: Code alignment factor: 0
# CHECK: Data alignment factor: 0
# CHECK: Return address column: 0