--- old/src/os_cpu/solaris_sparc/vm/os_solaris_sparc.cpp	2013-06-05 10:55:39.000000000 +0200
+++ new/src/os_cpu/solaris_sparc/vm/os_solaris_sparc.cpp	2013-06-05 10:55:39.000000000 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -194,6 +194,11 @@
   return NULL;
 }
 
+address os::Solaris::ucontext_get_pc(ucontext_t *uc) {
+  return (address) uc->uc_mcontext.gregs[REG_PC];
+}
+
+
 // For Forte Analyzer AsyncGetCallTrace profiling support - thread
 // is currently interrupted by SIGPROF.
 //
@@ -265,22 +270,6 @@
   }
 }
 
-
-void GetThreadPC_Callback::execute(OSThread::InterruptArguments *args) {
-  Thread*     thread = args->thread();
-  ucontext_t* uc     = args->ucontext();
-  intptr_t* sp;
-
-  assert(ProfileVM && thread->is_VM_thread(), "just checking");
-
-  // Skip the mcontext corruption verification. If if occasionally
-  // things get corrupt, it is ok for profiling - we will just get an unresolved
-  // function name
-  ExtendedPC new_addr((address)uc->uc_mcontext.gregs[REG_PC]);
-  _addr = new_addr;
-}
-
-
 static int threadgetstate(thread_t tid, int *flags, lwpid_t *lwp, stack_t *ss, gregset_t rs, lwpstatus_t *lwpstatus) {
   char lwpstatusfile[PROCFILE_LENGTH];
   int lwpfd, err;
@@ -358,13 +347,8 @@
   guarantee(sig != os::Solaris::SIGinterrupt(), "Can not chain VM interrupt signal, try -XX:+UseAltSigs");
 
   if (sig == os::Solaris::SIGasync()) {
-    if (thread) {
-      OSThread::InterruptArguments args(thread, uc);
-      thread->osthread()->do_interrupt_callbacks_at_interrupt(&args);
-      return true;
-    } else if (vmthread) {
-      OSThread::InterruptArguments args(vmthread, uc);
-      vmthread->osthread()->do_interrupt_callbacks_at_interrupt(&args);
+    if (thread || vmthread) {
+      OSThread::SR_handler(t, uc);
       return true;
     } else if (os::Solaris::chained_handler(sig, info, ucVoid)) {
       return true;