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 inline jint frame::interpreter_frame_expression_stack_direction() { return -1; } 103 104 // bottom(base) of the expression stack (highest address) 105 inline intptr_t* frame::interpreter_frame_expression_stack() const { 106 return (intptr_t*)interpreter_frame_monitors() - 1; 107 } 108 109 // top of expression stack (lowest address) 110 inline intptr_t* frame::interpreter_frame_tos_address() const { 111 return *interpreter_frame_esp_addr() + 1; 112 } 113 114 inline BasicObjectLock** frame::interpreter_frame_monitors_addr() const { 115 return (BasicObjectLock**) sp_addr_at(Lmonitors->sp_offset_in_saved_window()); 116 } 117 inline intptr_t** frame::interpreter_frame_esp_addr() const { 118 return (intptr_t**)sp_addr_at(Lesp->sp_offset_in_saved_window()); 119 } 120 121 inline void frame::interpreter_frame_set_tos_address( intptr_t* x ) { 122 *interpreter_frame_esp_addr() = x - 1; 123 } 124 125 // monitor elements 126 127 // in keeping with Intel side: end is lower in memory than begin; 128 // and beginning element is oldest element 129 // Also begin is one past last monitor. 130 131 inline BasicObjectLock* frame::interpreter_frame_monitor_begin() const { 132 int rounded_vm_local_words = align_up((int)frame::interpreter_frame_vm_local_words, WordsPerLong); 133 return (BasicObjectLock *)fp_addr_at(-rounded_vm_local_words); 134 } 135 136 inline BasicObjectLock* frame::interpreter_frame_monitor_end() const { 137 return interpreter_frame_monitors(); 138 } 139 140 141 inline void frame::interpreter_frame_set_monitor_end(BasicObjectLock* value) { 142 interpreter_frame_set_monitors(value); 143 } 144 145 inline int frame::interpreter_frame_monitor_size() { 146 return align_up(BasicObjectLock::size(), WordsPerLong); 147 } 148 149 inline Method** frame::interpreter_frame_method_addr() const { 150 return (Method**)sp_addr_at( Lmethod->sp_offset_in_saved_window()); 151 } 152 153 inline BasicObjectLock* frame::interpreter_frame_monitors() const { 154 return *interpreter_frame_monitors_addr(); 155 } 156 157 inline void frame::interpreter_frame_set_monitors(BasicObjectLock* monitors) { 158 *interpreter_frame_monitors_addr() = monitors; 159 } 160 161 inline oop* frame::interpreter_frame_mirror_addr() const { 162 return (oop*)(fp() + interpreter_frame_mirror_offset); 163 } 164 165 // Constant pool cache 166 167 // where LcpoolCache is saved: 168 inline ConstantPoolCache** frame::interpreter_frame_cpoolcache_addr() const { 169 return (ConstantPoolCache**)sp_addr_at(LcpoolCache->sp_offset_in_saved_window()); 170 } 171 172 inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const { 173 return (ConstantPoolCache**)sp_addr_at( LcpoolCache->sp_offset_in_saved_window()); 174 } 175 176 inline oop* frame::interpreter_frame_temp_oop_addr() const { 177 return (oop *)(fp() + interpreter_frame_oop_temp_offset); 178 } 179 180 181 inline JavaCallWrapper** frame::entry_frame_call_wrapper_addr() const { 182 // note: adjust this code if the link argument in StubGenerator::call_stub() changes! 183 const Argument link = Argument(0, false); 184 return (JavaCallWrapper**)&sp()[link.as_in().as_register()->sp_offset_in_saved_window()]; 185 } 186 187 188 inline oop frame::saved_oop_result(RegisterMap* map) const { 189 return *((oop*) map->location(O0->as_VMReg())); 190 } 191 192 inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) { 193 *((oop*) map->location(O0->as_VMReg())) = obj; 194 } 195 196 #endif // CPU_SPARC_VM_FRAME_SPARC_INLINE_HPP