1 /* 2 * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef CPU_SPARC_VM_FRAME_SPARC_INLINE_HPP 26 #define CPU_SPARC_VM_FRAME_SPARC_INLINE_HPP 27 28 #include "asm/macroAssembler.hpp" 29 #include "code/vmreg.inline.hpp" 30 #include "utilities/align.hpp" 31 32 // Inline functions for SPARC frames: 33 34 // Constructors 35 36 inline frame::frame() { 37 _pc = NULL; 38 _sp = NULL; 39 _younger_sp = NULL; 40 _cb = NULL; 41 _deopt_state = unknown; 42 _sp_adjustment_by_callee = 0; 43 } 44 45 // Accessors: 46 47 inline bool frame::equal(frame other) const { 48 bool ret = sp() == other.sp() 49 && fp() == other.fp() 50 && pc() == other.pc(); 51 assert(!ret || ret && cb() == other.cb() && _deopt_state == other._deopt_state, "inconsistent construction"); 52 return ret; 53 } 54 55 // Return unique id for this frame. The id must have a value where we can distinguish 56 // identity and younger/older relationship. NULL represents an invalid (incomparable) 57 // frame. 58 inline intptr_t* frame::id(void) const { return unextended_sp(); } 59 60 // Relationals on frames based 61 // Return true if the frame is younger (more recent activation) than the frame represented by id 62 inline bool frame::is_younger(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id"); 63 return this->id() < id ; } 64 65 // Return true if the frame is older (less recent activation) than the frame represented by id 66 inline bool frame::is_older(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id"); 67 return this->id() > id ; } 68 69 inline int frame::frame_size(RegisterMap* map) const { return sender_sp() - sp(); } 70 71 inline intptr_t* frame::link() const { return (intptr_t *)(fp()[FP->sp_offset_in_saved_window()] + STACK_BIAS); } 72 73 inline intptr_t* frame::unextended_sp() const { return sp() + _sp_adjustment_by_callee; } 74 75 // return address: 76 77 inline address frame::sender_pc() const { return *I7_addr() + pc_return_offset; } 78 79 inline address* frame::I7_addr() const { return (address*) &sp()[ I7->sp_offset_in_saved_window()]; } 80 inline address* frame::I0_addr() const { return (address*) &sp()[ I0->sp_offset_in_saved_window()]; } 81 82 inline address* frame::O7_addr() const { return (address*) &younger_sp()[ I7->sp_offset_in_saved_window()]; } 83 inline address* frame::O0_addr() const { return (address*) &younger_sp()[ I0->sp_offset_in_saved_window()]; } 84 85 inline intptr_t* frame::sender_sp() const { return fp(); } 86 87 inline intptr_t* frame::real_fp() const { return fp(); } 88 89 inline intptr_t** frame::interpreter_frame_locals_addr() const { 90 return (intptr_t**) sp_addr_at( Llocals->sp_offset_in_saved_window()); 91 } 92 93 inline intptr_t* frame::interpreter_frame_bcp_addr() const { 94 return (intptr_t*) sp_addr_at( Lbcp->sp_offset_in_saved_window()); 95 } 96 97 inline intptr_t* frame::interpreter_frame_mdp_addr() const { 98 // %%%%% reinterpreting ImethodDataPtr as a mdx 99 return (intptr_t*) sp_addr_at( ImethodDataPtr->sp_offset_in_saved_window()); 100 } 101 102 // bottom(base) of the expression stack (highest address) 103 inline intptr_t* frame::interpreter_frame_expression_stack() const { 104 return (intptr_t*)interpreter_frame_monitors() - 1; 105 } 106 107 // top of expression stack (lowest address) 108 inline intptr_t* frame::interpreter_frame_tos_address() const { 109 return *interpreter_frame_esp_addr() + 1; 110 } 111 112 inline BasicObjectLock** frame::interpreter_frame_monitors_addr() const { 113 return (BasicObjectLock**) sp_addr_at(Lmonitors->sp_offset_in_saved_window()); 114 } 115 inline intptr_t** frame::interpreter_frame_esp_addr() const { 116 return (intptr_t**)sp_addr_at(Lesp->sp_offset_in_saved_window()); 117 } 118 119 inline void frame::interpreter_frame_set_tos_address( intptr_t* x ) { 120 *interpreter_frame_esp_addr() = x - 1; 121 } 122 123 // monitor elements 124 125 // in keeping with Intel side: end is lower in memory than begin; 126 // and beginning element is oldest element 127 // Also begin is one past last monitor. 128 129 inline BasicObjectLock* frame::interpreter_frame_monitor_begin() const { 130 int rounded_vm_local_words = align_up((int)frame::interpreter_frame_vm_local_words, WordsPerLong); 131 return (BasicObjectLock *)fp_addr_at(-rounded_vm_local_words); 132 } 133 134 inline BasicObjectLock* frame::interpreter_frame_monitor_end() const { 135 return interpreter_frame_monitors(); 136 } 137 138 139 inline void frame::interpreter_frame_set_monitor_end(BasicObjectLock* value) { 140 interpreter_frame_set_monitors(value); 141 } 142 143 inline int frame::interpreter_frame_monitor_size() { 144 return align_up(BasicObjectLock::size(), WordsPerLong); 145 } 146 147 inline Method** frame::interpreter_frame_method_addr() const { 148 return (Method**)sp_addr_at( Lmethod->sp_offset_in_saved_window()); 149 } 150 151 inline BasicObjectLock* frame::interpreter_frame_monitors() const { 152 return *interpreter_frame_monitors_addr(); 153 } 154 155 inline void frame::interpreter_frame_set_monitors(BasicObjectLock* monitors) { 156 *interpreter_frame_monitors_addr() = monitors; 157 } 158 159 inline oop* frame::interpreter_frame_mirror_addr() const { 160 return (oop*)(fp() + interpreter_frame_mirror_offset); 161 } 162 163 // Constant pool cache 164 165 // where LcpoolCache is saved: 166 inline ConstantPoolCache** frame::interpreter_frame_cpoolcache_addr() const { 167 return (ConstantPoolCache**)sp_addr_at(LcpoolCache->sp_offset_in_saved_window()); 168 } 169 170 inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const { 171 return (ConstantPoolCache**)sp_addr_at( LcpoolCache->sp_offset_in_saved_window()); 172 } 173 174 inline oop* frame::interpreter_frame_temp_oop_addr() const { 175 return (oop *)(fp() + interpreter_frame_oop_temp_offset); 176 } 177 178 179 inline JavaCallWrapper** frame::entry_frame_call_wrapper_addr() const { 180 // note: adjust this code if the link argument in StubGenerator::call_stub() changes! 181 const Argument link = Argument(0, false); 182 return (JavaCallWrapper**)&sp()[link.as_in().as_register()->sp_offset_in_saved_window()]; 183 } 184 185 186 inline oop frame::saved_oop_result(RegisterMap* map) const { 187 return *((oop*) map->location(O0->as_VMReg())); 188 } 189 190 inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) { 191 *((oop*) map->location(O0->as_VMReg())) = obj; 192 } 193 194 #endif // CPU_SPARC_VM_FRAME_SPARC_INLINE_HPP