commit c9dee84d81e4672dee5dd08890c904d1ab841e56
author Christopher Ferris <cferris@google.com> Fri Nov 03 14:50:27 2017 -0700
committer Christopher Ferris <cferris@google.com> Tue Nov 07 13:22:39 2017 -0800
tree b71dfd2d4adf1041b6420cef62492494d00e864c
parent 1e0b9672defa3504915741c8d4cec3cc73f89568

Add support for only a .eh_frame.

Static executables only have a .eh_frame section and no .eh_frame_hdr
section. Add support for this by rearranging the class hierarchy and
creating a DwarfEhFrameWithHdr class and a DwarfEhFrame class to handle
the different cases.

Add new unit tests for DwarfEhFrame and for the new functionality.

Bug: 68820189

Test: Passes new unit tests, unwinds static executables.
Change-Id: I63d7cb8c52a686e96579a2266e18c0d06bbb6e63

libunwindstack/Android.bp

diff --git a/libunwindstack/Android.bp b/libunwindstack/Android.bp
index c885c3f..40364fe 100644
--- a/libunwindstack/Android.bp
+++ b/libunwindstack/Android.bp
@@ -48,8 +48,7 @@
     srcs: [
         "ArmExidx.cpp",
         "DwarfCfa.cpp",
-        "DwarfDebugFrame.cpp",
-        "DwarfEhFrame.cpp",
+        "DwarfEhFrameWithHdr.cpp",
         "DwarfMemory.cpp",
         "DwarfOp.cpp",
         "DwarfSection.cpp",
@@ -106,6 +105,7 @@
         "tests/DwarfCfaTest.cpp",
         "tests/DwarfDebugFrameTest.cpp",
         "tests/DwarfEhFrameTest.cpp",
+        "tests/DwarfEhFrameWithHdrTest.cpp",
         "tests/DwarfMemoryTest.cpp",
         "tests/DwarfOpLogTest.cpp",
         "tests/DwarfOpTest.cpp",