frame_ppc.inline.hpp revision 9898:2794bc7859f5
1/* 2 * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved. 3 * Copyright 2012, 2015 SAP AG. All rights reserved. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 * 24 */ 25 26#ifndef CPU_PPC_VM_FRAME_PPC_INLINE_HPP 27#define CPU_PPC_VM_FRAME_PPC_INLINE_HPP 28 29#include "code/codeCache.hpp" 30#include "code/vmreg.inline.hpp" 31 32// Inline functions for ppc64 frames: 33 34// Find codeblob and set deopt_state. 35inline void frame::find_codeblob_and_set_pc_and_deopt_state(address pc) { 36 assert(pc != NULL, "precondition: must have PC"); 37 38 _cb = CodeCache::find_blob(pc); 39 _pc = pc; // Must be set for get_deopt_original_pc() 40 41 _fp = (intptr_t*)own_abi()->callers_sp; 42 43 address original_pc = nmethod::get_deopt_original_pc(this); 44 if (original_pc != NULL) { 45 _pc = original_pc; 46 _deopt_state = is_deoptimized; 47 } else { 48 _deopt_state = not_deoptimized; 49 } 50 51 assert(((uint64_t)_sp & 0xf) == 0, "SP must be 16-byte aligned"); 52} 53 54// Constructors 55 56// Initialize all fields, _unextended_sp will be adjusted in find_codeblob_and_set_pc_and_deopt_state. 57inline frame::frame() : _sp(NULL), _unextended_sp(NULL), _fp(NULL), _cb(NULL), _pc(NULL), _deopt_state(unknown) {} 58 59inline frame::frame(intptr_t* sp) : _sp(sp), _unextended_sp(sp) { 60 find_codeblob_and_set_pc_and_deopt_state((address)own_abi()->lr); // also sets _fp and adjusts _unextended_sp 61} 62 63inline frame::frame(intptr_t* sp, address pc) : _sp(sp), _unextended_sp(sp) { 64 find_codeblob_and_set_pc_and_deopt_state(pc); // also sets _fp and adjusts _unextended_sp 65} 66 67inline frame::frame(intptr_t* sp, address pc, intptr_t* unextended_sp) : _sp(sp), _unextended_sp(unextended_sp) { 68 find_codeblob_and_set_pc_and_deopt_state(pc); // also sets _fp and adjusts _unextended_sp 69} 70 71// Accessors 72 73// Return unique id for this frame. The id must have a value where we 74// can distinguish identity and younger/older relationship. NULL 75// represents an invalid (incomparable) frame. 76inline intptr_t* frame::id(void) const { 77 // Use _fp. _sp or _unextended_sp wouldn't be correct due to resizing. 78 return _fp; 79} 80 81// Return true if this frame is older (less recent activation) than 82// the frame represented by id. 83inline bool frame::is_older(intptr_t* id) const { 84 assert(this->id() != NULL && id != NULL, "NULL frame id"); 85 // Stack grows towards smaller addresses on ppc64. 86 return this->id() > id; 87} 88 89inline int frame::frame_size(RegisterMap* map) const { 90 // Stack grows towards smaller addresses on PPC64: sender is at a higher address. 91 return sender_sp() - sp(); 92} 93 94// Return the frame's stack pointer before it has been extended by a 95// c2i adapter. This is needed by deoptimization for ignoring c2i adapter 96// frames. 97inline intptr_t* frame::unextended_sp() const { 98 return _unextended_sp; 99} 100 101// All frames have this field. 102inline address frame::sender_pc() const { 103 return (address)callers_abi()->lr; 104} 105inline address* frame::sender_pc_addr() const { 106 return (address*)&(callers_abi()->lr); 107} 108 109// All frames have this field. 110inline intptr_t* frame::sender_sp() const { 111 return (intptr_t*)callers_abi(); 112} 113 114// All frames have this field. 115inline intptr_t* frame::link() const { 116 return (intptr_t*)callers_abi()->callers_sp; 117} 118 119inline intptr_t* frame::real_fp() const { 120 return fp(); 121} 122 123// Template Interpreter frame value accessors. 124 125inline frame::ijava_state* frame::get_ijava_state() const { 126 return (ijava_state*) ((uintptr_t)fp() - ijava_state_size); 127} 128 129inline intptr_t** frame::interpreter_frame_locals_addr() const { 130 return (intptr_t**) &(get_ijava_state()->locals); 131} 132inline intptr_t* frame::interpreter_frame_bcp_addr() const { 133 return (intptr_t*) &(get_ijava_state()->bcp); 134} 135inline intptr_t* frame::interpreter_frame_mdp_addr() const { 136 return (intptr_t*) &(get_ijava_state()->mdx); 137} 138// Pointer beyond the "oldest/deepest" BasicObjectLock on stack. 139inline BasicObjectLock* frame::interpreter_frame_monitor_end() const { 140 return (BasicObjectLock *) get_ijava_state()->monitors; 141} 142 143inline BasicObjectLock* frame::interpreter_frame_monitor_begin() const { 144 return (BasicObjectLock *) get_ijava_state(); 145} 146 147// Return register stack slot addr at which currently interpreted method is found. 148inline Method** frame::interpreter_frame_method_addr() const { 149 return (Method**) &(get_ijava_state()->method); 150} 151inline ConstantPoolCache** frame::interpreter_frame_cpoolcache_addr() const { 152 return (ConstantPoolCache**) &(get_ijava_state()->cpoolCache); 153} 154inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const { 155 return (ConstantPoolCache**) &(get_ijava_state()->cpoolCache); 156} 157 158inline oop* frame::interpreter_frame_temp_oop_addr() const { 159 return (oop *) &(get_ijava_state()->oop_tmp); 160} 161inline intptr_t* frame::interpreter_frame_esp() const { 162 return (intptr_t*) get_ijava_state()->esp; 163} 164 165// Convenient setters 166inline void frame::interpreter_frame_set_monitor_end(BasicObjectLock* end) { get_ijava_state()->monitors = (intptr_t) end;} 167inline void frame::interpreter_frame_set_cpcache(ConstantPoolCache* cp) { *frame::interpreter_frame_cpoolcache_addr() = cp; } 168inline void frame::interpreter_frame_set_esp(intptr_t* esp) { get_ijava_state()->esp = (intptr_t) esp; } 169inline void frame::interpreter_frame_set_top_frame_sp(intptr_t* top_frame_sp) { get_ijava_state()->top_frame_sp = (intptr_t) top_frame_sp; } 170inline void frame::interpreter_frame_set_sender_sp(intptr_t* sender_sp) { get_ijava_state()->sender_sp = (intptr_t) sender_sp; } 171 172inline intptr_t* frame::interpreter_frame_expression_stack() const { 173 return (intptr_t*)interpreter_frame_monitor_end() - 1; 174} 175 176inline jint frame::interpreter_frame_expression_stack_direction() { 177 return -1; 178} 179 180// top of expression stack 181inline intptr_t* frame::interpreter_frame_tos_address() const { 182 return ((intptr_t*) get_ijava_state()->esp) + Interpreter::stackElementWords; 183} 184 185inline intptr_t* frame::interpreter_frame_tos_at(jint offset) const { 186 return &interpreter_frame_tos_address()[offset]; 187} 188 189inline int frame::interpreter_frame_monitor_size() { 190 // Number of stack slots for a monitor. 191 return round_to(BasicObjectLock::size(), // number of stack slots 192 WordsPerLong); // number of stack slots for a Java long 193} 194 195inline int frame::interpreter_frame_monitor_size_in_bytes() { 196 return frame::interpreter_frame_monitor_size() * wordSize; 197} 198 199// entry frames 200 201inline intptr_t* frame::entry_frame_argument_at(int offset) const { 202 // Since an entry frame always calls the interpreter first, the 203 // parameters are on the stack and relative to known register in the 204 // entry frame. 205 intptr_t* tos = (intptr_t*)get_entry_frame_locals()->arguments_tos_address; 206 return &tos[offset + 1]; // prepushed tos 207} 208 209inline JavaCallWrapper** frame::entry_frame_call_wrapper_addr() const { 210 return (JavaCallWrapper**)&get_entry_frame_locals()->call_wrapper_address; 211} 212 213inline oop frame::saved_oop_result(RegisterMap* map) const { 214 return *((oop*)map->location(R3->as_VMReg())); 215} 216 217inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) { 218 *((oop*)map->location(R3->as_VMReg())) = obj; 219} 220 221#endif // CPU_PPC_VM_FRAME_PPC_INLINE_HPP 222