[PATCH] Add .eh_frame_hdr search to Linux unwinder.

[Saleem Abdulrasool]

Looks like it should be okay beyond the inline comments.


REPOSITORY
  rL LLVM

================
Comment at: src/Unwind/EHHeaderParser.hpp:34
@@ +33,3 @@
+  struct EHHeaderInfo {
+    pint_t ehFramePtr;
+    size_t fdeCount;
----------------
Can you change these to the specification specified names?  It makes it easier to cross-reference.

================
Comment at: src/Unwind/config.h:86
@@ -85,3 +85,3 @@
   #define _LIBUNWIND_SUPPORT_COMPACT_UNWIND 0
-  #define _LIBUNWIND_SUPPORT_DWARF_UNWIND   0
-  #define _LIBUNWIND_SUPPORT_DWARF_INDEX    0
+  #define _LIBUNWIND_SUPPORT_DWARF_UNWIND !defined(__arm__) || \
+                                          defined(__ARM_DWARF_EH__)
----------------
Does clang-format format this statement this way?

http://reviews.llvm.org/D6848

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