- Fix for issue 25950 (add registration of a thread exit callback)

runtime/vm/os_linux.cc

Index: runtime/vm/os_linux.cc
diff --git a/runtime/vm/os_linux.cc b/runtime/vm/os_linux.cc
index d97a3a77a32c773112a6c5a40b23252e9ae9ee7a..edfb890a73fac8ce8efd3b9c026eff25dec9854f 100644
--- a/runtime/vm/os_linux.cc
+++ b/runtime/vm/os_linux.cc
@@ -40,7 +40,7 @@ DEFINE_FLAG(bool, generate_perf_events_symbols, false,
 class PerfCodeObserver : public CodeObserver {
  public:
   PerfCodeObserver() : out_file_(NULL) {
-    Dart_FileOpenCallback file_open = Isolate::file_open_callback();
+    Dart_FileOpenCallback file_open = Dart::file_open_callback();
     if (file_open == NULL) {
       return;
     }
@@ -51,7 +51,7 @@ class PerfCodeObserver : public CodeObserver {
   }
 
   ~PerfCodeObserver() {
-    Dart_FileCloseCallback file_close = Isolate::file_close_callback();
+    Dart_FileCloseCallback file_close = Dart::file_close_callback();
     if ((file_close == NULL) || (out_file_ == NULL)) {
       return;
     }
@@ -67,7 +67,7 @@ class PerfCodeObserver : public CodeObserver {
                       uword prologue_offset,
                       uword size,
                       bool optimized) {
-    Dart_FileWriteCallback file_write = Isolate::file_write_callback();
+    Dart_FileWriteCallback file_write = Dart::file_write_callback();
     if ((file_write == NULL) || (out_file_ == NULL)) {
       return;
     }