Add lsan function stubs for darwin

Summary:
This patch provides stubs for all of the lsan platform-specific
functions which need to be implemented for darwin. Currently
all of these functions are stubs, for the purpose of fixing
compilation.

Reviewers: kcc, glider, kubamracek

Subscribers: mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D29784

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@294983 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 81 insertions, 1 deletions

diff --git a/lib/lsan/CMakeLists.txt b/lib/lsan/CMakeLists.txt
index b782f2421..e78bf6d3e 100644
--- a/lib/lsan/CMakeLists.txt
+++ b/lib/lsan/CMakeLists.txt
@@ -5,7 +5,8 @@ append_rtti_flag(OFF LSAN_CFLAGS)
 
 set(LSAN_COMMON_SOURCES
   lsan_common.cc
-  lsan_common_linux.cc)
+  lsan_common_linux.cc
+  lsan_common_mac.cc)
 
 set(LSAN_SOURCES
   lsan.cc
diff --git a/lib/lsan/lsan_common_mac.cc b/lib/lsan/lsan_common_mac.cc
new file mode 100644
index 000000000..c9e50ae36
--- /dev/null
+++ b/lib/lsan/lsan_common_mac.cc
@@ -0,0 +1,40 @@
+//=-- lsan_common_mac.cc --------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of LeakSanitizer.
+// Implementation of common leak checking functionality. Darwin-specific code.
+//
+//===----------------------------------------------------------------------===//
+
+#include "sanitizer_common/sanitizer_platform.h"
+#include "lsan_common.h"
+
+#if CAN_SANITIZE_LEAKS && SANITIZER_MAC
+namespace __lsan {
+
+void InitializePlatformSpecificModules() {
+  CHECK(0 && "unimplemented");
+}
+
+// Scans global variables for heap pointers.
+void ProcessGlobalRegions(Frontier *frontier) {
+  CHECK(0 && "unimplemented");
+}
+
+void ProcessPlatformSpecificAllocations(Frontier *frontier) {
+  CHECK(0 && "unimplemented");
+}
+
+void DoStopTheWorld(StopTheWorldCallback callback, void *argument) {
+  CHECK(0 && "unimplemented");
+}
+
+} // namespace __lsan
+
+#endif // CAN_SANITIZE_LEAKS && SANITIZER_MAC
diff --git a/lib/sanitizer_common/CMakeLists.txt b/lib/sanitizer_common/CMakeLists.txt
index 32d0a6c66..6cdc91897 100644
--- a/lib/sanitizer_common/CMakeLists.txt
+++ b/lib/sanitizer_common/CMakeLists.txt
@@ -25,6 +25,7 @@ set(SANITIZER_SOURCES_NOTERMINATION
   sanitizer_stackdepot.cc
   sanitizer_stacktrace.cc
   sanitizer_stacktrace_printer.cc
+  sanitizer_stoptheworld_mac.cc
   sanitizer_suppressions.cc
   sanitizer_symbolizer.cc
   sanitizer_symbolizer_libbacktrace.cc
diff --git a/lib/sanitizer_common/sanitizer_stoptheworld_mac.cc b/lib/sanitizer_common/sanitizer_stoptheworld_mac.cc
new file mode 100644
index 000000000..4cccc295e
--- /dev/null
+++ b/lib/sanitizer_common/sanitizer_stoptheworld_mac.cc
@@ -0,0 +1,38 @@
+//===-- sanitizer_stoptheworld_mac.cc -------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// See sanitizer_stoptheworld.h for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "sanitizer_platform.h"
+
+#if SANITIZER_MAC && (defined(__x86_64__) || defined(__aarch64__))
+
+#include "sanitizer_stoptheworld.h"
+
+namespace __sanitizer {
+void StopTheWorld(StopTheWorldCallback callback, void *argument) {
+  CHECK(0 && "unimplemented");
+}
+
+int SuspendedThreadsList::GetRegistersAndSP(uptr index,
+                                            uptr *buffer,
+                                            uptr *sp) const {
+  CHECK(0 && "unimplemented");
+  return 0;
+}
+
+uptr SuspendedThreadsList::RegisterCount() {
+  CHECK(0 && "unimplemented");
+  return 0;
+}
+} // namespace __sanitizer
+
+#endif  // SANITIZER_MAC && (defined(__x86_64__) || defined(__aarch64__))