Debug stub: suspend/resume threads on Linux

src/trusted/gdb_rsp/test.cc

Index: src/trusted/gdb_rsp/test.cc
diff --git a/src/trusted/gdb_rsp/test.cc b/src/trusted/gdb_rsp/test.cc
index 4e1a880d32b0eab0eba19d9830dfed5999062b93..cea31aa0f921f9b53ecc5fd715840f58c4a8b0ec 100644
--- a/src/trusted/gdb_rsp/test.cc
+++ b/src/trusted/gdb_rsp/test.cc
@@ -103,6 +103,12 @@ IThread* IThread::Create(uint32_t id, struct NaClAppThread *) {
   return new ThreadMock(id);
 }
 
+void IThread::SuspendAll(uint32_t) {
+}
+
+void IThread::ResumeAll(uint32_t) {
+}
+
 
 bool port::IPlatform::GetMemory(uint64_t addr, uint32_t len, void *dst) {
   intptr_t iptr = static_cast<intptr_t>(addr);