Implement native call stub on ARM and native call redirection in ARM simulator.

runtime/vm/os_macos.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"
 #if defined(TARGET_OS_MACOS)
 
 #include "vm/os.h"
 
+#include <dlfcn.h>  // NOLINT
 #include <errno.h>  // NOLINT
 #include <limits.h>  // NOLINT
 #include <mach/mach.h>  // NOLINT
 #include <mach/clock.h>  // NOLINT
 #include <mach/mach_time.h>  // NOLINT
 #include <sys/time.h>  // NOLINT
 #include <sys/resource.h>  // NOLINT
 #include <unistd.h>  // NOLINT
 
 #include "platform/utils.h"
@@ skipping 163 matching lines @@
   errno = 0;
   *value = strtoll(str, &endptr, base);
   return ((errno == 0) && (endptr != str) && (*endptr == 0));
 }
 
 
 void OS::RegisterCodeObservers() {
 }
 
 
+const char* OS::ReverseLookupSymbol(uword address) {
+  // TODO(regis): This does not work for symbols of the main program.
+  // Passing -export-dynamic to the linker does not help.
+  Dl_info info;
+  if (dladdr(reinterpret_cast<void*>(address), &info)) {
+    return info.dli_sname;
+  } else {
+    return NULL;
+  }
+}
+
+
 void OS::PrintErr(const char* format, ...) {
   va_list args;
   va_start(args, format);
   VFPrint(stderr, format, args);
   va_end(args);
 }
 
 
 void OS::InitOnce() {
   // TODO(5411554): For now we check that initonce is called only once,
@@ skipping 14 matching lines @@
 }
 
 
 void OS::Exit(int code) {
   exit(code);
 }
 
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_MACOS)