Bug 743306 - Part 1: On Android, log MOZ_Assert messages to logcat because...

Bug 743306 - Part 1: On Android, log MOZ_Assert messages to logcat because stderr is directed to /dev/null. r=glandium

--HG--
extra : rebase_source : 1dda421f84116784539d6ca65fb1d9092506b0bd

mfbt/Assertions.cpp

@@ -47,6 +47,10 @@
 #include <signal.h>
 #endif
 
+#ifdef ANDROID
+#include <android/log.h>
+#endif
+
 /* Implementations of runtime and static assertion macros for C and C++. */
 
 extern "C" {
@@ -83,8 +87,13 @@ MOZ_Crash()
 MOZ_EXPORT_API(void)
 MOZ_Assert(const char* s, const char* file, int ln)
 {
+#ifdef ANDROID
+  __android_log_print(ANDROID_LOG_FATAL, "MOZ_Assert",
+                      "Assertion failure: %s, at %s:%d\n", s, file, ln);
+#else
   fprintf(stderr, "Assertion failure: %s, at %s:%d\n", s, file, ln);
   fflush(stderr);
+#endif
   MOZ_Crash();
 }