tree d50cf188a4df626b8e9718469575e7ff17671dd7
parent fc1cf90741e59d5615a7dcea1813f38bfa3a2eec
author Christopher Ferris <cferris@google.com> 1529603042 -0700
committer Christopher Ferris <cferris@google.com> 1530136341 -0700

Refactor the DwarfSection classes.

Modify the code for the no header sections because it turns out that
it is not okay to assume that the fdes are non-overlapping. It's necessary
to read the fdes in order and match as you go.

Modify the code so that it only reads until it finds the given pc rather than
reading all of the cie/fde entries at once.

Rewrote the tests to verify the new behavior.

Bug: 68998033
Bug: 110235461

Test: Ran libbacktrace/libunwindstack unit tests.
Test: Unwind the mediaserver process on a walleye and verify it
Test: unwinds properly.

Change-Id: I7bb59d1db72c13fa34caa9735ec34c1a60e20ed2