duke@435: /*
sla@5237:  * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #ifndef OS_CPU_LINUX_X86_VM_THREAD_LINUX_X86_HPP
stefank@2314: #define OS_CPU_LINUX_X86_VM_THREAD_LINUX_X86_HPP
stefank@2314: 
duke@435:  private:
duke@435:   void pd_initialize() {
duke@435:     _anchor.clear();
duke@435:   }
duke@435: 
duke@435:   frame pd_last_frame() {
duke@435:     assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");
kevinw@8877:     assert(_anchor.last_Java_pc() != NULL, "not walkable");
kevinw@8877:     return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp(), _anchor.last_Java_pc());
duke@435:   }
duke@435: 
duke@435:  public:
duke@435:   // Mutators are highly dangerous....
duke@435:   intptr_t* last_Java_fp()                       { return _anchor.last_Java_fp(); }
duke@435:   void  set_last_Java_fp(intptr_t* fp)           { _anchor.set_last_Java_fp(fp);   }
duke@435: 
duke@435:   void set_base_of_stack_pointer(intptr_t* base_sp) {
duke@435:   }
duke@435: 
duke@435:   static ByteSize last_Java_fp_offset()          {
duke@435:     return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_fp_offset();
duke@435:   }
duke@435: 
duke@435:   intptr_t* base_of_stack_pointer() {
duke@435:     return NULL;
duke@435:   }
duke@435:   void record_base_of_stack_pointer() {
duke@435:   }
duke@435: 
duke@435:   bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext,
duke@435:     bool isInJava);
duke@435: 
sla@5237:   bool pd_get_top_frame_for_profiling(frame* fr_addr, void* ucontext, bool isInJava);
sla@5237: private:
sla@5237:   bool pd_get_top_frame(frame* fr_addr, void* ucontext, bool isInJava);
sla@5237: public:
sla@5237: 
duke@435:   // These routines are only used on cpu architectures that
duke@435:   // have separate register stacks (Itanium).
duke@435:   static bool register_stack_overflow() { return false; }
duke@435:   static void enable_register_stack_guard() {}
duke@435:   static void disable_register_stack_guard() {}
stefank@2314: 
stefank@2314: #endif // OS_CPU_LINUX_X86_VM_THREAD_LINUX_X86_HPP