commit df2906186b6952c57b1f662bfef0b65c9f8c2e0d
author Christopher Ferris <cferris@google.com> Wed Jan 22 19:21:07 2014 -0800
committer Christopher Ferris <cferris@google.com> Tue Jan 28 12:03:36 2014 -0800
tree e5ed8339b7fd42ff20047244f87106c8f1fa0d45
parent 6ddabb7a1cc3080ae773acb045f69b5e6afee87a

Re-enable libunwind for arm.

Update to handle the new optimized way that libunwind works.

In addition, a small refactor of the BacktraceMap code.

A few new tests of for good measure.

Change-Id: I2f9b4f5ad5a0dfe907b31febee76e4b9b94fb76f

libbacktrace/UnwindCurrent.cpp

diff --git a/libbacktrace/UnwindCurrent.cpp b/libbacktrace/UnwindCurrent.cpp
index d1195ee..17b71b9 100644
--- a/libbacktrace/UnwindCurrent.cpp
+++ b/libbacktrace/UnwindCurrent.cpp
@@ -25,6 +25,7 @@
 #include <libunwind.h>
 
 #include "UnwindCurrent.h"
+#include "UnwindMap.h"
 
 // Define the ucontext_t structures needed for each supported arch.
 #if defined(__arm__)
@@ -119,8 +120,8 @@
       }
 
       if (resolve) {
-        frame->func_name = backtrace_obj_->GetFunctionName(frame->pc, &frame->func_offset);
-        frame->map = backtrace_obj_->FindMap(frame->pc);
+        frame->func_name = GetFunctionName(frame->pc, &frame->func_offset);
+        frame->map = FindMap(frame->pc);
       } else {
         frame->map = NULL;
         frame->func_offset = 0;
@@ -171,10 +172,6 @@
 UnwindThread::~UnwindThread() {
 }
 
-bool UnwindThread::Init() {
-  return true;
-}
-
 void UnwindThread::ThreadUnwind(
     siginfo_t* /*siginfo*/, void* sigcontext, size_t num_ignore_frames) {
   ExtractContext(sigcontext);