Christopher Ferris f6f691b63c Update the Unwinder object and add tests. ... Changes: - Remove unused GetReturnAddressFromDefault function and tests. - Modify the unwinder to stop when a pc/sp in a device map. - Modify the unwinder to skip initial frames based on map names. - Unit tests that exercise all of the paths in the unwinder code. - Move the test Elf/ElfInterface objects into their own file. - Update RegsFake to handle extra cases. - Modify libbacktrace code to use this unwinder. The new unwinder does not implement the ignore frame functionality since this is not used very often and is better implemented using a skip frames in named libraries functionality. Test: Ran new unit tests, ran backtrace tests. Change-Id: Ifd65e9acd66ac5e2d0e04bd32a9ad870b54610ff		2017-10-04 14:40:14 -07:00
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unwindstack	Update the Unwinder object and add tests.	2017-10-04 14:40:14 -07:00