Lang Hames c48f1f6da6 [JITLink][ORC] Track eh-frame section size for registration/deregistration. ...

On MachO, processing of the eh-frame section should stop if the end of the
__eh_frame section is reached, regardless of whether or not there is a null CFI
length field at the end of the section. This patch tracks the eh-frame section
size and threads it through the appropriate APIs so that processing can be
terminated correctly.

No testcase yet: This patch is all API plumbing (rather than modification of
linked memory) which the existing infrastructure does not provide a way of
testing. Committing without a testcase until I have an idea of how to write
one.

llvm-svn: 370074

2019-08-27 15:50:32 +00:00

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