From 06d314917fcf44bae9f1178b225e9280caec17ea Mon Sep 17 00:00:00 2001
From: Colin Cross <ccross@android.com>
Date: Thu, 15 Dec 2016 12:55:03 -0800
Subject: [PATCH] Fix unused parameter warning for mips builds

libbacktrace_offline was inheriting -Wno-unused-parameter from llvm's
makefiles.  Fix an unused parameter warning when compiling for an
unsupported architecture, and return false since *value wasn't
written.

Test: lunch aosp_mips-eng && mma -j
Change-Id: I7df990f01e1025ca17ec3717107df56d2349f3cb
---
 libbacktrace/BacktraceOffline.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libbacktrace/BacktraceOffline.cpp b/libbacktrace/BacktraceOffline.cpp
index 9e95563b0..5e543286e 100644
--- a/libbacktrace/BacktraceOffline.cpp
+++ b/libbacktrace/BacktraceOffline.cpp
@@ -34,6 +34,7 @@ extern "C" {
 #include <vector>
 
 #include <android-base/file.h>
+#include <android-base/macros.h>
 #include <backtrace/Backtrace.h>
 #include <backtrace/BacktraceMap.h>
 #include <ziparchive/zip_archive.h>
@@ -534,6 +535,10 @@ bool BacktraceOffline::ReadReg(size_t reg, uint64_t* value) {
     default:
       result = false;
   }
+#else
+  UNUSED(reg);
+  UNUSED(value);
+  result = false;
 #endif
   return result;
 }