Mercurial > hg > truffle
annotate src/cpu/ppc/vm/frame_ppc.cpp @ 14822:39daeb102dce
Baseline compiler emitPrologue.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Wed, 19 Mar 2014 17:07:22 +0100 |
parents | 67fa91961822 |
children | 58cf34613a72 |
rev | line source |
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14408
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1 /* |
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2 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. |
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3 * Copyright 2012, 2013 SAP AG. All rights reserved. |
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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5 * |
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6 * This code is free software; you can redistribute it and/or modify it |
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7 * under the terms of the GNU General Public License version 2 only, as |
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8 * published by the Free Software Foundation. |
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9 * |
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10 * This code is distributed in the hope that it will be useful, but WITHOUT |
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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13 * version 2 for more details (a copy is included in the LICENSE file that |
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14 * accompanied this code). |
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15 * |
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16 * You should have received a copy of the GNU General Public License version |
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17 * 2 along with this work; if not, write to the Free Software Foundation, |
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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19 * |
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
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23 * |
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24 */ |
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25 |
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26 #include "precompiled.hpp" |
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27 #include "interpreter/interpreter.hpp" |
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28 #include "memory/resourceArea.hpp" |
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29 #include "oops/markOop.hpp" |
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30 #include "oops/method.hpp" |
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31 #include "oops/oop.inline.hpp" |
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32 #include "runtime/frame.inline.hpp" |
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33 #include "runtime/handles.inline.hpp" |
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34 #include "runtime/javaCalls.hpp" |
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35 #include "runtime/monitorChunk.hpp" |
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36 #include "runtime/signature.hpp" |
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37 #include "runtime/stubCodeGenerator.hpp" |
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38 #include "runtime/stubRoutines.hpp" |
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39 #include "vmreg_ppc.inline.hpp" |
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40 #ifdef COMPILER1 |
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41 #include "c1/c1_Runtime1.hpp" |
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42 #include "runtime/vframeArray.hpp" |
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43 #endif |
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44 |
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45 #ifndef CC_INTERP |
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46 #error "CC_INTERP must be defined on PPC64" |
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47 #endif |
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48 |
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49 #ifdef ASSERT |
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50 void RegisterMap::check_location_valid() { |
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51 } |
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52 #endif // ASSERT |
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53 |
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54 bool frame::safe_for_sender(JavaThread *thread) { |
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55 bool safe = false; |
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56 address cursp = (address)sp(); |
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57 address curfp = (address)fp(); |
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58 if ((cursp != NULL && curfp != NULL && |
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59 (cursp <= thread->stack_base() && cursp >= thread->stack_base() - thread->stack_size())) && |
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60 (curfp <= thread->stack_base() && curfp >= thread->stack_base() - thread->stack_size())) { |
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61 safe = true; |
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62 } |
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63 return safe; |
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64 } |
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65 |
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66 bool frame::is_interpreted_frame() const { |
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67 return Interpreter::contains(pc()); |
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68 } |
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69 |
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70 frame frame::sender_for_entry_frame(RegisterMap *map) const { |
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71 assert(map != NULL, "map must be set"); |
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72 // Java frame called from C; skip all C frames and return top C |
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73 // frame of that chunk as the sender. |
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74 JavaFrameAnchor* jfa = entry_frame_call_wrapper()->anchor(); |
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75 assert(!entry_frame_is_first(), "next Java fp must be non zero"); |
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76 assert(jfa->last_Java_sp() > _sp, "must be above this frame on stack"); |
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77 map->clear(); |
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78 assert(map->include_argument_oops(), "should be set by clear"); |
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79 |
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80 if (jfa->last_Java_pc() != NULL) { |
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81 frame fr(jfa->last_Java_sp(), jfa->last_Java_pc()); |
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82 return fr; |
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83 } |
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84 // Last_java_pc is not set, if we come here from compiled code. The |
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85 // constructor retrieves the PC from the stack. |
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86 frame fr(jfa->last_Java_sp()); |
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87 return fr; |
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88 } |
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89 |
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90 frame frame::sender_for_interpreter_frame(RegisterMap *map) const { |
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91 // Pass callers initial_caller_sp as unextended_sp. |
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92 return frame(sender_sp(), sender_pc(), (intptr_t*)((parent_ijava_frame_abi *)callers_abi())->initial_caller_sp); |
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93 } |
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94 |
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95 frame frame::sender_for_compiled_frame(RegisterMap *map) const { |
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96 assert(map != NULL, "map must be set"); |
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97 |
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98 // Frame owned by compiler. |
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99 address pc = *compiled_sender_pc_addr(_cb); |
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100 frame caller(compiled_sender_sp(_cb), pc); |
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101 |
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102 // Now adjust the map. |
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103 |
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104 // Get the rest. |
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105 if (map->update_map()) { |
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106 // Tell GC to use argument oopmaps for some runtime stubs that need it. |
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107 map->set_include_argument_oops(_cb->caller_must_gc_arguments(map->thread())); |
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108 if (_cb->oop_maps() != NULL) { |
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109 OopMapSet::update_register_map(this, map); |
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110 } |
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111 } |
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112 |
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113 return caller; |
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114 } |
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115 |
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116 intptr_t* frame::compiled_sender_sp(CodeBlob* cb) const { |
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117 return sender_sp(); |
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118 } |
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119 |
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120 address* frame::compiled_sender_pc_addr(CodeBlob* cb) const { |
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121 return sender_pc_addr(); |
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122 } |
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123 |
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124 frame frame::sender(RegisterMap* map) const { |
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125 // Default is we do have to follow them. The sender_for_xxx will |
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126 // update it accordingly. |
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127 map->set_include_argument_oops(false); |
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128 |
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129 if (is_entry_frame()) return sender_for_entry_frame(map); |
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130 if (is_interpreted_frame()) return sender_for_interpreter_frame(map); |
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131 assert(_cb == CodeCache::find_blob(pc()),"Must be the same"); |
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132 |
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133 if (_cb != NULL) { |
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134 return sender_for_compiled_frame(map); |
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135 } |
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136 // Must be native-compiled frame, i.e. the marshaling code for native |
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137 // methods that exists in the core system. |
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138 return frame(sender_sp(), sender_pc()); |
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139 } |
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140 |
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141 void frame::patch_pc(Thread* thread, address pc) { |
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142 if (TracePcPatching) { |
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143 tty->print_cr("patch_pc at address " PTR_FORMAT " [" PTR_FORMAT " -> " PTR_FORMAT "]", |
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144 &((address*) _sp)[-1], ((address*) _sp)[-1], pc); |
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145 } |
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146 own_abi()->lr = (uint64_t)pc; |
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147 _cb = CodeCache::find_blob(pc); |
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148 if (_cb != NULL && _cb->is_nmethod() && ((nmethod*)_cb)->is_deopt_pc(_pc)) { |
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149 address orig = (((nmethod*)_cb)->get_original_pc(this)); |
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150 assert(orig == _pc, "expected original to be stored before patching"); |
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151 _deopt_state = is_deoptimized; |
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152 // Leave _pc as is. |
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153 } else { |
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154 _deopt_state = not_deoptimized; |
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155 _pc = pc; |
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156 } |
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157 } |
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158 |
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159 void frame::pd_gc_epilog() { |
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160 if (is_interpreted_frame()) { |
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161 // Set constant pool cache entry for interpreter. |
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162 Method* m = interpreter_frame_method(); |
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163 |
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164 *interpreter_frame_cpoolcache_addr() = m->constants()->cache(); |
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165 } |
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166 } |
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167 |
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168 bool frame::is_interpreted_frame_valid(JavaThread* thread) const { |
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169 // Is there anything to do? |
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170 assert(is_interpreted_frame(), "Not an interpreted frame"); |
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171 return true; |
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172 } |
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173 |
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174 BasicType frame::interpreter_frame_result(oop* oop_result, jvalue* value_result) { |
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175 assert(is_interpreted_frame(), "interpreted frame expected"); |
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176 Method* method = interpreter_frame_method(); |
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177 BasicType type = method->result_type(); |
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178 |
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179 if (method->is_native()) { |
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180 // Prior to calling into the runtime to notify the method exit the possible |
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181 // result value is saved into the interpreter frame. |
14445 | 182 #ifdef CC_INTERP |
14408
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183 interpreterState istate = get_interpreterState(); |
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184 address lresult = (address)istate + in_bytes(BytecodeInterpreter::native_lresult_offset()); |
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185 address fresult = (address)istate + in_bytes(BytecodeInterpreter::native_fresult_offset()); |
14445 | 186 #endif |
14408
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187 |
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188 switch (method->result_type()) { |
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189 case T_OBJECT: |
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190 case T_ARRAY: { |
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191 oop* obj_p = *(oop**)lresult; |
14433
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192 oop obj = (obj_p == NULL) ? (oop)NULL : *obj_p; |
14408
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193 assert(obj == NULL || Universe::heap()->is_in(obj), "sanity check"); |
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194 *oop_result = obj; |
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195 break; |
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196 } |
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197 // We use std/stfd to store the values. |
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198 case T_BOOLEAN : value_result->z = (jboolean) *(unsigned long*)lresult; break; |
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199 case T_INT : value_result->i = (jint) *(long*)lresult; break; |
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200 case T_CHAR : value_result->c = (jchar) *(unsigned long*)lresult; break; |
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201 case T_SHORT : value_result->s = (jshort) *(long*)lresult; break; |
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202 case T_BYTE : value_result->z = (jbyte) *(long*)lresult; break; |
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203 case T_LONG : value_result->j = (jlong) *(long*)lresult; break; |
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204 case T_FLOAT : value_result->f = (jfloat) *(double*)fresult; break; |
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205 case T_DOUBLE : value_result->d = (jdouble) *(double*)fresult; break; |
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206 case T_VOID : /* Nothing to do */ break; |
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207 default : ShouldNotReachHere(); |
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208 } |
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209 } else { |
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210 intptr_t* tos_addr = interpreter_frame_tos_address(); |
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211 switch (method->result_type()) { |
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212 case T_OBJECT: |
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213 case T_ARRAY: { |
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214 oop obj = *(oop*)tos_addr; |
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215 assert(obj == NULL || Universe::heap()->is_in(obj), "sanity check"); |
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216 *oop_result = obj; |
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|
217 } |
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218 case T_BOOLEAN : value_result->z = (jboolean) *(jint*)tos_addr; break; |
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219 case T_BYTE : value_result->b = (jbyte) *(jint*)tos_addr; break; |
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220 case T_CHAR : value_result->c = (jchar) *(jint*)tos_addr; break; |
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221 case T_SHORT : value_result->s = (jshort) *(jint*)tos_addr; break; |
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222 case T_INT : value_result->i = *(jint*)tos_addr; break; |
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223 case T_LONG : value_result->j = *(jlong*)tos_addr; break; |
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224 case T_FLOAT : value_result->f = *(jfloat*)tos_addr; break; |
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225 case T_DOUBLE : value_result->d = *(jdouble*)tos_addr; break; |
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|
226 case T_VOID : /* Nothing to do */ break; |
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|
227 default : ShouldNotReachHere(); |
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|
228 } |
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|
229 } |
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|
230 return type; |
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|
231 } |
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|
232 |
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|
233 #ifndef PRODUCT |
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|
234 |
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235 void frame::describe_pd(FrameValues& values, int frame_no) { |
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|
236 if (is_interpreted_frame()) { |
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|
237 #ifdef CC_INTERP |
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238 interpreterState istate = get_interpreterState(); |
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|
239 values.describe(frame_no, (intptr_t*)istate, "istate"); |
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240 values.describe(frame_no, (intptr_t*)&(istate->_thread), " thread"); |
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|
241 values.describe(frame_no, (intptr_t*)&(istate->_bcp), " bcp"); |
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242 values.describe(frame_no, (intptr_t*)&(istate->_locals), " locals"); |
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|
243 values.describe(frame_no, (intptr_t*)&(istate->_constants), " constants"); |
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|
244 values.describe(frame_no, (intptr_t*)&(istate->_method), err_msg(" method = %s", istate->_method->name_and_sig_as_C_string())); |
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245 values.describe(frame_no, (intptr_t*)&(istate->_mdx), " mdx"); |
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|
246 values.describe(frame_no, (intptr_t*)&(istate->_stack), " stack"); |
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|
247 values.describe(frame_no, (intptr_t*)&(istate->_msg), err_msg(" msg = %s", BytecodeInterpreter::C_msg(istate->_msg))); |
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|
248 values.describe(frame_no, (intptr_t*)&(istate->_result), " result"); |
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|
249 values.describe(frame_no, (intptr_t*)&(istate->_prev_link), " prev_link"); |
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|
250 values.describe(frame_no, (intptr_t*)&(istate->_oop_temp), " oop_temp"); |
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|
251 values.describe(frame_no, (intptr_t*)&(istate->_stack_base), " stack_base"); |
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252 values.describe(frame_no, (intptr_t*)&(istate->_stack_limit), " stack_limit"); |
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253 values.describe(frame_no, (intptr_t*)&(istate->_monitor_base), " monitor_base"); |
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|
254 values.describe(frame_no, (intptr_t*)&(istate->_frame_bottom), " frame_bottom"); |
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|
255 values.describe(frame_no, (intptr_t*)&(istate->_last_Java_pc), " last_Java_pc"); |
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|
256 values.describe(frame_no, (intptr_t*)&(istate->_last_Java_fp), " last_Java_fp"); |
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|
257 values.describe(frame_no, (intptr_t*)&(istate->_last_Java_sp), " last_Java_sp"); |
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|
258 values.describe(frame_no, (intptr_t*)&(istate->_self_link), " self_link"); |
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|
259 values.describe(frame_no, (intptr_t*)&(istate->_native_fresult), " native_fresult"); |
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260 values.describe(frame_no, (intptr_t*)&(istate->_native_lresult), " native_lresult"); |
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261 #else |
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262 Unimplemented(); |
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263 #endif |
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264 } |
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265 } |
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266 #endif |
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267 |
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268 void frame::adjust_unextended_sp() { |
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269 // If we are returning to a compiled MethodHandle call site, the |
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270 // saved_fp will in fact be a saved value of the unextended SP. The |
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271 // simplest way to tell whether we are returning to such a call site |
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272 // is as follows: |
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273 |
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274 if (is_compiled_frame() && false /*is_at_mh_callsite()*/) { // TODO PPC port |
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275 // If the sender PC is a deoptimization point, get the original |
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276 // PC. For MethodHandle call site the unextended_sp is stored in |
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277 // saved_fp. |
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278 _unextended_sp = _fp - _cb->frame_size(); |
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279 |
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280 #ifdef ASSERT |
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281 nmethod *sender_nm = _cb->as_nmethod_or_null(); |
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282 assert(sender_nm && *_sp == *_unextended_sp, "backlink changed"); |
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283 |
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284 intptr_t* sp = _unextended_sp; // check if stack can be walked from here |
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285 for (int x = 0; x < 5; ++x) { // check up to a couple of backlinks |
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286 intptr_t* prev_sp = *(intptr_t**)sp; |
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287 if (prev_sp == 0) break; // end of stack |
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288 assert(prev_sp>sp, "broken stack"); |
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289 sp = prev_sp; |
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290 } |
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291 |
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292 if (sender_nm->is_deopt_mh_entry(_pc)) { // checks for deoptimization |
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293 address original_pc = sender_nm->get_original_pc(this); |
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294 assert(sender_nm->insts_contains(original_pc), "original PC must be in nmethod"); |
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295 assert(sender_nm->is_method_handle_return(original_pc), "must be"); |
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296 } |
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297 #endif |
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298 } |
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299 } |
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300 |
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301 intptr_t *frame::initial_deoptimization_info() { |
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302 // unused... but returns fp() to minimize changes introduced by 7087445 |
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303 return fp(); |
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304 } |