--- old/src/hotspot/os_cpu/solaris_x86/thread_solaris_x86.cpp	2020-05-01 02:30:09.704923401 -0700
+++ /dev/null	2020-03-09 18:57:19.455001459 -0700
@@ -1,104 +0,0 @@
-/*
- * Copyright (c) 2003, 2020, 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.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#include "precompiled.hpp"
-#include "memory/metaspaceShared.hpp"
-#include "runtime/frame.inline.hpp"
-#include "runtime/thread.inline.hpp"
-
-frame JavaThread::pd_last_frame() {
-  assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");
-  vmassert(_anchor.last_Java_pc() != NULL, "not walkable");
-  return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp(), _anchor.last_Java_pc());
-}
-
-// For Forte Analyzer AsyncGetCallTrace profiling support - thread is
-// currently interrupted by SIGPROF
-bool JavaThread::pd_get_top_frame_for_signal_handler(frame* fr_addr,
-  void* ucontext, bool isInJava) {
-  assert(Thread::current() == this, "caller must be current thread");
-  return pd_get_top_frame(fr_addr, ucontext, isInJava);
-}
-
-bool JavaThread::pd_get_top_frame_for_profiling(frame* fr_addr,
-  void* ucontext, bool isInJava) {
-  return pd_get_top_frame(fr_addr, ucontext, isInJava);
-}
-
-bool JavaThread::pd_get_top_frame(frame* fr_addr,
-  void* ucontext, bool isInJava) {
-  assert(this->is_Java_thread(), "must be JavaThread");
-  JavaThread* jt = (JavaThread *)this;
-
-  // There is small window where last_Java_frame is not walkable or safe
-  if (jt->has_last_Java_frame() && jt->frame_anchor()->walkable()) {
-    *fr_addr = jt->pd_last_frame();
-    return true;
-  }
-
-  ucontext_t* uc = (ucontext_t*) ucontext;
-
-  // We always want to use the initial frame we create from the ucontext as
-  // it certainly signals where we currently are. However that frame may not
-  // be safe for calling sender. In that case if we have a last_Java_frame
-  // then the forte walker will switch to that frame as the virtual sender
-  // for the frame we create here which is not sender safe.
-
-  intptr_t* ret_fp;
-  intptr_t* ret_sp;
-  ExtendedPC addr = os::Solaris::fetch_frame_from_ucontext(this, uc, &ret_sp, &ret_fp);
-
-  // Something would really have to be screwed up to get a NULL pc
-
-  if (addr.pc() == NULL) {
-    assert(false, "NULL pc from signal handler!");
-    return false;
-  }
-
-  if (MetaspaceShared::is_in_trampoline_frame(addr.pc())) {
-    // In the middle of a trampoline call. Bail out for safety.
-    // This happens rarely so shouldn't affect profiling.
-    return false;
-  }
-
-  // If sp and fp are nonsense just leave them out
-
-  if (!jt->is_in_full_stack((address)ret_sp)) {
-    ret_sp = NULL;
-    ret_fp = NULL;
-  } else {
-    // sp is reasonable is fp reasonable?
-    if (!jt->is_in_stack_range_incl((address)ret_fp, (address)ret_sp)) {
-      ret_fp = NULL;
-    }
-  }
-
-  frame ret_frame(ret_sp, ret_fp, addr.pc());
-
-  *fr_addr = ret_frame;
-  return true;
-
-}
-
-void JavaThread::cache_global_variables() { }