[sanitizers] Log all output to CrashReport on OS X

Log all of sanitizers' output (not just ASan bug reports) to CrashReport,
which simplifies diagnosing failed checks as well as other errors. This
also allows to strip the color sequences early from the printed buffer,
which is more efficient than what we had perviously.

Differential Revision: http://reviews.llvm.org/D15396

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@256988 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 2 deletions

diff --git a/lib/sanitizer_common/sanitizer_linux_libcdep.cc b/lib/sanitizer_common/sanitizer_linux_libcdep.cc
index 0bb66c9d6..8cf2c73b1 100644
--- a/lib/sanitizer_common/sanitizer_linux_libcdep.cc
+++ b/lib/sanitizer_common/sanitizer_linux_libcdep.cc
@@ -524,13 +524,13 @@ void AndroidLogInit() {
   atomic_store(&android_log_initialized, 1, memory_order_release);
 }
 
-bool ShouldLogAfterPrintf() {
+static bool ShouldLogAfterPrintf() {
   return atomic_load(&android_log_initialized, memory_order_acquire);
 }
 #else
 void AndroidLogInit() {}
 
-bool ShouldLogAfterPrintf() { return true; }
+static bool ShouldLogAfterPrintf() { return true; }
 #endif  // SANITIZER_ANDROID
 
 void WriteOneLineToSyslog(const char *s) {
@@ -541,6 +541,11 @@ void WriteOneLineToSyslog(const char *s) {
 #endif
 }
 
+void LogMessageOnPrintf(const char *str) {
+  if (common_flags()->log_to_syslog && ShouldLogAfterPrintf())
+    WriteToSyslog(str);
+}
+
 #endif // SANITIZER_LINUX
 
 } // namespace __sanitizer