--- old/src/hotspot/os_cpu/solaris_x86/thread_solaris_x86.hpp	2020-05-01 02:30:10.504938789 -0700
+++ /dev/null	2020-03-09 18:57:19.455001459 -0700
@@ -1,62 +0,0 @@
-/*
- * Copyright (c) 1999, 2019, 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.
- *
- */
-
-#ifndef OS_CPU_SOLARIS_X86_THREAD_SOLARIS_X86_HPP
-#define OS_CPU_SOLARIS_X86_THREAD_SOLARIS_X86_HPP
-
- private:
-  void pd_initialize()                           { _anchor.clear(); }
-
-  frame pd_last_frame();
-
- public:
-  // Mutators are highly dangerous....
-  intptr_t* last_Java_fp()                       { return _anchor.last_Java_fp(); }
-  void  set_last_Java_fp(intptr_t* fp)           { _anchor.set_last_Java_fp(fp);   }
-
-  void set_base_of_stack_pointer(intptr_t* base_sp)  {}
-
-  static ByteSize last_Java_fp_offset()          {
-    return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_fp_offset();
-  }
-
-  intptr_t* base_of_stack_pointer()                  { return NULL; }
-  void record_base_of_stack_pointer()            {}
-
-  bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext,
-    bool isInJava);
-  bool pd_get_top_frame_for_profiling(frame* fr_addr, void* ucontext,
-    bool isInJava);
-private:
-  bool pd_get_top_frame(frame* fr_addr, void* ucontext,
-    bool isInJava);
-public:
-
-  // These routines are only used on cpu architectures that
-  // have separate register stacks (Itanium).
-  static bool register_stack_overflow() { return false; }
-  static void enable_register_stack_guard() {}
-  static void disable_register_stack_guard() {}
-
-#endif // OS_CPU_SOLARIS_X86_THREAD_SOLARIS_X86_HPP