src/os_cpu/solaris_x86/vm/os_solaris_x86.cpp

rev 4773 : 8005849: JEP 167: Event-Based JVM Tracing
Reviewed-by: acorn, coleenp, sla
Contributed-by: Karen Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>

@@ -1,7 +1,7 @@
 /*
- * 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
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -181,10 +181,14 @@
 // Assumes ucontext is valid
 intptr_t* os::Solaris::ucontext_get_fp(ucontext_t *uc) {
   return (intptr_t*)uc->uc_mcontext.gregs[REG_FP];
 }
 
+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.
 //
 // The difference between this and os::fetch_frame_from_context() is that
 // here we try to skip nested signal frames.

@@ -250,26 +254,10 @@
   } else {
     return os::get_sender_for_C_frame(&myframe);
   }
 }
 
-// This is a simple callback that just fetches a PC for an interrupted thread.
-// The thread need not be suspended and the fetched PC is just a hint.
-// This one is currently used for profiling the VMThread ONLY!
-
-// Must be synchronous
-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");
-
-  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;
 
   if (err = os::Solaris::thr_getstate(tid, flags, lwp, ss, rs))

@@ -417,18 +405,12 @@
   }
 
   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;
     } else {
       // If os::Solaris::SIGasync not chained, and this is a non-vm and