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3 Commits

Author SHA1 Message Date
Igor Kudrin ed9851a0a6 [DWARF] Better detect errors in Address Range Tables. 
The patch tries to cover most remaining cases of wrong data.

Differential Revision: https://reviews.llvm.org/D71932
 2020-01-23 12:41:05 +07:00
Igor Kudrin 6332990721 [DWARF] Support DWARF64 in DWARFDebugArangeSet. 
This allows parsing Address Range Tables in the 64-bit DWARF format.

Differential Revision: https://reviews.llvm.org/D71876
 2020-01-23 12:41:05 +07:00
Igor Kudrin dcff3961c2 [DWARF] Return Error from DWARFDebugArangeSet::extract(). 
This helps to detect and report parsing errors better.
The patch follows the ideas of LLDB's patches D59370 and D59381.

It adds tests for valid and some invalid cases. More checks and
tests to come. Note that the patch fixes validation of the Length
field because the value does not include the field itself.

The existing users are updated to show the error messages.

Differential Revision: https://reviews.llvm.org/D71875
 2020-01-23 12:41:05 +07:00