Add lsan function stubs for darwin

[fjricci]

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.

[kubamracek]

Can you insert something like CHECK(0 && "unimplemented") into all those functions? Just to make sure nobody actually tries to call them until they're implemented.

[kubamracek]

lib/lsan/lsan_common_mac.cc

12

Please update comment.

lib/sanitizer_common/sanitizer_stoptheworld_mac.cc

11–12

Please update comment.

[fjricci]

Address comments

[kubamracek]

LGTM.

lib/lsan/CMakeLists.txt

 include_directories(..)
 
 set(LSAN_CFLAGS ${SANITIZER_COMMON_CFLAGS})
 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
   lsan_allocator.cc
   lsan_interceptors.cc
   lsan_preinit.cc
   lsan_thread.cc)
 

lib/lsan/lsan_common_mac.cc

+//=-- 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

lib/sanitizer_common/CMakeLists.txt

set(SANITIZER_SOURCES_NOTERMINATION
   sanitizer_printf.cc
   sanitizer_procmaps_common.cc
   sanitizer_procmaps_freebsd.cc
   sanitizer_procmaps_linux.cc
   sanitizer_procmaps_mac.cc
   sanitizer_stackdepot.cc
   sanitizer_stacktrace.cc
   sanitizer_stacktrace_printer.cc
+  sanitizer_stoptheworld_mac.cc
   sanitizer_suppressions.cc
   sanitizer_symbolizer.cc
   sanitizer_symbolizer_libbacktrace.cc
   sanitizer_symbolizer_mac.cc
   sanitizer_symbolizer_win.cc
   sanitizer_tls_get_addr.cc
   sanitizer_thread_registry.cc
   sanitizer_win.cc)

lib/sanitizer_common/sanitizer_stoptheworld_mac.cc

+//===-- 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__))