forked from OSchip/llvm-project
95e72765c1
Summary: This behavior is specified in the Section 6.4.2.3 (Register Rule instructions) of the DWARF4 spec. We were not doing that, which meant that any register rule which was relying on the cfa value being there was not evaluated correctly (it was aborted due to "out of bounds" access). I'm not sure how come this wasn't noticed before, but I guess this has something to do with the fact that dwarf unwind expressions are not used very often, and when they are, the situation is so complicated that the CFA is of no use. I noticed this when I started emitting dwarf expressions for the unwind information present in breakpad symbol files. Reviewers: jasonmolenda, clayborg Subscribers: aprantl, lldb-commits Differential Revision: https://reviews.llvm.org/D61018 llvm-svn: 360158 |
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