[scudo] Add some logs for Android

Summary:
Namely, set the abort message, and allow to write the message to syslog if the
option is enabled.

Reviewers: alekseyshl

Reviewed By: alekseyshl

Subscribers: delcypher, #sanitizers, llvm-commits

Differential Revision: https://reviews.llvm.org/D48902

llvm-svn: 336445

diff --git a/compiler-rt/lib/scudo/scudo_utils.cpp b/compiler-rt/lib/scudo/scudo_utils.cpp
index 42c6260..d5788d2 100644 (file)
--- a/compiler-rt/lib/scudo/scudo_utils.cpp
+++ b/compiler-rt/lib/scudo/scudo_utils.cpp
@@ -50,6 +50,9 @@ FORMAT(1, 2) void NORETURN dieWithMessage(const char *Format, ...) {
   internal_memcpy(Message, ScudoError, PrefixSize);
   VSNPrintf(Message + PrefixSize, sizeof(Message) - PrefixSize, Format, Args);
   va_end(Args);
+  LogMessageOnPrintf(Message);
+  if (common_flags()->abort_on_error)
+    SetAbortMessage(Message);
   RawWrite(Message);
   Die();
 }