jdk8-mips64-public/hotspot: src/cpu/ppc/vm/frame_ppc.inline.hpp@41b780b43b74 (annotated)

src/cpu/ppc/vm/frame_ppc.inline.hpp@41b780b43b74 (annotated)

src/cpu/ppc/vm/frame_ppc.inline.hpp

Wed, 27 Nov 2013 16:16:21 -0800

author: goetz
date: Wed, 27 Nov 2013 16:16:21 -0800
changeset 6490: 41b780b43b74
parent 6458: ec28f9c041ff
child 6495: 67fa91961822
permissions: -rw-r--r--

8029015: PPC64 (part 216): opto: trap based null and range checks
Summary: On PPC64 use tdi instruction that does a compare and raises SIGTRAP for NULL and range checks.
Reviewed-by: kvn

 /*
  * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2012, 2013 SAP AG. 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 CPU_PPC_VM_FRAME_PPC_INLINE_HPP
 #define CPU_PPC_VM_FRAME_PPC_INLINE_HPP
 #ifndef CC_INTERP
 #error "CC_INTERP must be defined on PPC64"
 #endif
 // Inline functions for ppc64 frames:
 // Find codeblob and set deopt_state.
 inline void frame::find_codeblob_and_set_pc_and_deopt_state(address pc) {
   assert(pc != NULL, "precondition: must have PC");
   _cb = CodeCache::find_blob(pc);
   _pc = pc;   // Must be set for get_deopt_original_pc()
   _fp = (intptr_t*)own_abi()->callers_sp;
   // Use _fp - frame_size, needs to be done between _cb and _pc initialization
   // and get_deopt_original_pc.
   adjust_unextended_sp();
   address original_pc = nmethod::get_deopt_original_pc(this);
   if (original_pc != NULL) {
     _pc = original_pc;
     _deopt_state = is_deoptimized;
   } else {
     _deopt_state = not_deoptimized;
   }
   assert(((uint64_t)_sp & 0xf) == 0, "SP must be 16-byte aligned");
 }
 // Constructors
 // Initialize all fields, _unextended_sp will be adjusted in find_codeblob_and_set_pc_and_deopt_state.
 inline frame::frame() : _sp(NULL), _unextended_sp(NULL), _fp(NULL), _cb(NULL), _pc(NULL), _deopt_state(unknown) {}
 inline frame::frame(intptr_t* sp) : _sp(sp), _unextended_sp(sp) {
   find_codeblob_and_set_pc_and_deopt_state((address)own_abi()->lr); // also sets _fp and adjusts _unextended_sp
 }
 inline frame::frame(intptr_t* sp, address pc) : _sp(sp), _unextended_sp(sp) {
   find_codeblob_and_set_pc_and_deopt_state(pc); // also sets _fp and adjusts _unextended_sp
 }
 inline frame::frame(intptr_t* sp, address pc, intptr_t* unextended_sp) : _sp(sp), _unextended_sp(unextended_sp) {
   find_codeblob_and_set_pc_and_deopt_state(pc); // also sets _fp and adjusts _unextended_sp
 }
 // Accessors
 // Return unique id for this frame. The id must have a value where we
 // can distinguish identity and younger/older relationship. NULL
 // represents an invalid (incomparable) frame.
 inline intptr_t* frame::id(void) const {
   // Use the _unextended_pc as the frame's ID. Because we have no
   // adapters, but resized compiled frames, some of the new code
   // (e.g. JVMTI) wouldn't work if we return the (current) SP of the
   // frame.
   return _unextended_sp;
 }
 // Return true if this frame is older (less recent activation) than
 // the frame represented by id.
 inline bool frame::is_older(intptr_t* id) const {
    assert(this->id() != NULL && id != NULL, "NULL frame id");
    // Stack grows towards smaller addresses on ppc64.
    return this->id() > id;
 }
 inline int frame::frame_size(RegisterMap* map) const {
   // Stack grows towards smaller addresses on PPC64: sender is at a higher address.
   return sender_sp() - sp();
 }
 // Return the frame's stack pointer before it has been extended by a
 // c2i adapter. This is needed by deoptimization for ignoring c2i adapter
 // frames.
 inline intptr_t* frame::unextended_sp() const {
   return _unextended_sp;
 }
 // All frames have this field.
 inline address frame::sender_pc() const {
   return (address)callers_abi()->lr;
 }
 inline address* frame::sender_pc_addr() const {
   return (address*)&(callers_abi()->lr);
 }
 // All frames have this field.
 inline intptr_t* frame::sender_sp() const {
   return (intptr_t*)callers_abi();
 }
 // All frames have this field.
 inline intptr_t* frame::link() const {
   return (intptr_t*)callers_abi()->callers_sp;
 }
 inline intptr_t* frame::real_fp() const {
   return fp();
 }
 #ifdef CC_INTERP
 inline interpreterState frame::get_interpreterState() const {
   return (interpreterState)(((address)callers_abi())
                             - frame::interpreter_frame_cinterpreterstate_size_in_bytes());
 }
 inline intptr_t** frame::interpreter_frame_locals_addr() const {
   interpreterState istate = get_interpreterState();
   return (intptr_t**)&istate->_locals;
 }
 inline intptr_t* frame::interpreter_frame_bcx_addr() const {
   interpreterState istate = get_interpreterState();
   return (intptr_t*)&istate->_bcp;
 }
 inline intptr_t* frame::interpreter_frame_mdx_addr() const {
   interpreterState istate = get_interpreterState();
   return (intptr_t*)&istate->_mdx;
 }
 inline intptr_t* frame::interpreter_frame_expression_stack() const {
   return (intptr_t*)interpreter_frame_monitor_end() - 1;
 }
 inline jint frame::interpreter_frame_expression_stack_direction() {
   return -1;
 }
 // top of expression stack
 inline intptr_t* frame::interpreter_frame_tos_address() const {
   interpreterState istate = get_interpreterState();
   return istate->_stack + 1;
 }
 inline intptr_t* frame::interpreter_frame_tos_at(jint offset) const {
   return &interpreter_frame_tos_address()[offset];
 }
 // monitor elements
 // in keeping with Intel side: end is lower in memory than begin;
 // and beginning element is oldest element
 // Also begin is one past last monitor.
 inline BasicObjectLock* frame::interpreter_frame_monitor_begin() const {
   return get_interpreterState()->monitor_base();
 }
 inline BasicObjectLock* frame::interpreter_frame_monitor_end() const {
   return (BasicObjectLock*)get_interpreterState()->stack_base();
 }
 inline int frame::interpreter_frame_cinterpreterstate_size_in_bytes() {
   // Size of an interpreter object. Not aligned with frame size.
   return round_to(sizeof(BytecodeInterpreter), 8);
 }
 inline Method** frame::interpreter_frame_method_addr() const {
   interpreterState istate = get_interpreterState();
   return &istate->_method;
 }
 // Constant pool cache
 inline ConstantPoolCache** frame::interpreter_frame_cpoolcache_addr() const {
   interpreterState istate = get_interpreterState();
   return &istate->_constants; // should really use accessor
 }
 inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const {
   interpreterState istate = get_interpreterState();
   return &istate->_constants;
 }
 #endif // CC_INTERP
 inline int frame::interpreter_frame_monitor_size() {
   // Number of stack slots for a monitor.
   return round_to(BasicObjectLock::size(),  // number of stack slots
                   WordsPerLong);            // number of stack slots for a Java long
 }
 inline int frame::interpreter_frame_monitor_size_in_bytes() {
   return frame::interpreter_frame_monitor_size() * wordSize;
 }
 // entry frames
 inline intptr_t* frame::entry_frame_argument_at(int offset) const {
   // Since an entry frame always calls the interpreter first, the
   // parameters are on the stack and relative to known register in the
   // entry frame.
   intptr_t* tos = (intptr_t*)get_entry_frame_locals()->arguments_tos_address;
   return &tos[offset + 1]; // prepushed tos
 }
 inline JavaCallWrapper** frame::entry_frame_call_wrapper_addr() const {
   return (JavaCallWrapper**)&get_entry_frame_locals()->call_wrapper_address;
 }
 inline oop frame::saved_oop_result(RegisterMap* map) const {
   return *((oop*)map->location(R3->as_VMReg()));
 }
 inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) {
   *((oop*)map->location(R3->as_VMReg())) = obj;
 }
 #endif // CPU_PPC_VM_FRAME_PPC_INLINE_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/cpu/ppc/vm/frame_ppc.inline.hpp@41b780b43b74 (annotated)

src/cpu/ppc/vm/frame_ppc.inline.hpp