@@ -1,3 +1,6 @@
+2012-11-21 Kostya Serebryany <email@example.com>
+ * README.gcc: Extend the README.gcc with mode details.
2012-11-20 Konstantin Serebryany <firstname.lastname@example.org>
@@ -1,4 +1,15 @@
-The AddressSanitizer (http://code.google.com/p/address-sanitizer) is
-a project developed by Google Inc. The source files of the project
-are hosted at http://llvm.org/svn/llvm-project/compiler-rt. These files
-are the ones in the asan subdirectory of that project.
+AddressSanitizer (http://code.google.com/p/address-sanitizer) and
+ThreadSanitizer (http://code.google.com/p/thread-sanitizer/) are
+projects initially developed by Google Inc.
+Both tools consist of a compiler module and a run-time library.
+The sources of the run-time library for these projects are hosted at
+http://llvm.org/svn/llvm-project/compiler-rt in the following directories:
+Trivial and urgent fixes (portability, build fixes, etc) may go directly to the
+GCC tree. All non-trivial changes, functionality improvements, etc should go
+through the upstream tree first and then be merged back to the GCC tree.