commit c91e6f9e5fcc9e4965ddd0d3b178edb0287cd930
author Yi Kong <yikong@google.com> Mon Dec 17 12:51:36 2018 -0800
committer Yi Kong <yikong@google.com> Mon Dec 17 12:51:36 2018 -0800
tree 3eb84743d6354538ca7e7b061271f60fcf41f15f
parent 567c45e10ea1186822768d6da2cc64f47e467c6b

[libbacktrace] Fix sign-compare warning

static_cast GetThreadId result to pid_t.

Test: m checkbuild
Change-Id: Id3f541c1cb6cad9471e0cedf2ca49ce0fc38df38

libbacktrace/BacktraceCurrent.cpp

diff --git a/libbacktrace/BacktraceCurrent.cpp b/libbacktrace/BacktraceCurrent.cpp
index 39cb995..038b59e 100644
--- a/libbacktrace/BacktraceCurrent.cpp
+++ b/libbacktrace/BacktraceCurrent.cpp
@@ -76,7 +76,7 @@
     return UnwindFromContext(num_ignore_frames, ucontext);
   }
 
-  if (Tid() != android::base::GetThreadId()) {
+  if (Tid() != static_cast<pid_t>(android::base::GetThreadId())) {
     return UnwindThread(num_ignore_frames);
   }