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aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
aoqi@0 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
aoqi@0 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | * |
aoqi@0 | 23 | */ |
aoqi@0 | 24 | |
aoqi@1 | 25 | /* |
aoqi@1 | 26 | * This file has been modified by Loongson Technology in 2015. These |
aoqi@1 | 27 | * modifications are Copyright (c) 2015 Loongson Technology, and are made |
aoqi@1 | 28 | * available on the same license terms set forth above. |
aoqi@1 | 29 | */ |
aoqi@1 | 30 | |
aoqi@0 | 31 | #ifndef SHARE_VM_C1_C1_FRAMEMAP_HPP |
aoqi@0 | 32 | #define SHARE_VM_C1_C1_FRAMEMAP_HPP |
aoqi@0 | 33 | |
aoqi@0 | 34 | #include "asm/assembler.hpp" |
aoqi@0 | 35 | #include "c1/c1_Defs.hpp" |
aoqi@0 | 36 | #include "c1/c1_LIR.hpp" |
aoqi@0 | 37 | #include "code/vmreg.hpp" |
aoqi@0 | 38 | #include "memory/allocation.hpp" |
aoqi@0 | 39 | #include "runtime/frame.hpp" |
aoqi@0 | 40 | #include "runtime/synchronizer.hpp" |
aoqi@0 | 41 | #include "utilities/globalDefinitions.hpp" |
aoqi@0 | 42 | |
aoqi@0 | 43 | class ciMethod; |
aoqi@0 | 44 | class CallingConvention; |
aoqi@0 | 45 | class BasicTypeArray; |
aoqi@0 | 46 | class BasicTypeList; |
aoqi@0 | 47 | |
aoqi@0 | 48 | //-------------------------------------------------------- |
aoqi@0 | 49 | // FrameMap |
aoqi@0 | 50 | //-------------------------------------------------------- |
aoqi@0 | 51 | |
aoqi@0 | 52 | // This class is responsible of mapping items (locals, monitors, spill |
aoqi@0 | 53 | // slots and registers to their frame location |
aoqi@0 | 54 | // |
aoqi@0 | 55 | // The monitors are specified by a consecutive index, although each monitor entry |
aoqi@0 | 56 | // occupies two words. The monitor_index is 0.._num_monitors |
aoqi@0 | 57 | // The spill index is similar to local index; it is in range 0..(open) |
aoqi@0 | 58 | // |
aoqi@0 | 59 | // The CPU registers are mapped using a fixed table; register with number 0 |
aoqi@0 | 60 | // is the most used one. |
aoqi@0 | 61 | |
aoqi@0 | 62 | |
aoqi@0 | 63 | // stack grow direction --> SP |
aoqi@0 | 64 | // +----------+---+----------+-------+------------------------+-----+ |
aoqi@0 | 65 | // |arguments | x | monitors | spill | reserved argument area | ABI | |
aoqi@0 | 66 | // +----------+---+----------+-------+------------------------+-----+ |
aoqi@0 | 67 | // |
aoqi@0 | 68 | // x = ABI area (SPARC) or return adress and link (i486) |
aoqi@0 | 69 | // ABI = ABI area (SPARC) or nothing (i486) |
aoqi@0 | 70 | |
aoqi@0 | 71 | |
aoqi@0 | 72 | class LIR_OprDesc; |
aoqi@0 | 73 | typedef LIR_OprDesc* LIR_Opr; |
aoqi@0 | 74 | |
aoqi@0 | 75 | |
aoqi@0 | 76 | class FrameMap : public CompilationResourceObj { |
aoqi@0 | 77 | public: |
aoqi@0 | 78 | enum { |
aoqi@0 | 79 | nof_cpu_regs = pd_nof_cpu_regs_frame_map, |
aoqi@0 | 80 | nof_fpu_regs = pd_nof_fpu_regs_frame_map, |
aoqi@0 | 81 | |
aoqi@0 | 82 | nof_cpu_regs_reg_alloc = pd_nof_cpu_regs_reg_alloc, |
aoqi@0 | 83 | nof_fpu_regs_reg_alloc = pd_nof_fpu_regs_reg_alloc, |
aoqi@0 | 84 | |
aoqi@0 | 85 | max_nof_caller_save_cpu_regs = pd_nof_caller_save_cpu_regs_frame_map, |
aoqi@0 | 86 | nof_caller_save_fpu_regs = pd_nof_caller_save_fpu_regs_frame_map, |
aoqi@0 | 87 | |
aoqi@0 | 88 | spill_slot_size_in_bytes = 4 |
aoqi@0 | 89 | }; |
aoqi@0 | 90 | |
aoqi@0 | 91 | #ifdef TARGET_ARCH_x86 |
aoqi@0 | 92 | # include "c1_FrameMap_x86.hpp" |
aoqi@0 | 93 | #endif |
aoqi@1 | 94 | #ifdef TARGET_ARCH_mips |
aoqi@1 | 95 | # include "c1_FrameMap_mips.hpp" |
aoqi@1 | 96 | #endif |
aoqi@0 | 97 | #ifdef TARGET_ARCH_sparc |
aoqi@0 | 98 | # include "c1_FrameMap_sparc.hpp" |
aoqi@0 | 99 | #endif |
aoqi@0 | 100 | #ifdef TARGET_ARCH_arm |
aoqi@0 | 101 | # include "c1_FrameMap_arm.hpp" |
aoqi@0 | 102 | #endif |
aoqi@0 | 103 | #ifdef TARGET_ARCH_ppc |
aoqi@0 | 104 | # include "c1_FrameMap_ppc.hpp" |
aoqi@0 | 105 | #endif |
aoqi@0 | 106 | |
aoqi@0 | 107 | |
aoqi@0 | 108 | friend class LIR_OprDesc; |
aoqi@0 | 109 | |
aoqi@0 | 110 | private: |
aoqi@0 | 111 | static bool _init_done; |
aoqi@0 | 112 | static Register _cpu_rnr2reg [nof_cpu_regs]; |
aoqi@0 | 113 | static int _cpu_reg2rnr [nof_cpu_regs]; |
aoqi@0 | 114 | |
aoqi@0 | 115 | static LIR_Opr _caller_save_cpu_regs [max_nof_caller_save_cpu_regs]; |
aoqi@0 | 116 | static LIR_Opr _caller_save_fpu_regs [nof_caller_save_fpu_regs]; |
aoqi@0 | 117 | |
aoqi@0 | 118 | int _framesize; |
aoqi@0 | 119 | int _argcount; |
aoqi@0 | 120 | int _num_monitors; |
aoqi@0 | 121 | int _num_spills; |
aoqi@0 | 122 | int _reserved_argument_area_size; |
aoqi@0 | 123 | int _oop_map_arg_count; |
aoqi@0 | 124 | |
aoqi@0 | 125 | CallingConvention* _incoming_arguments; |
aoqi@0 | 126 | intArray* _argument_locations; |
aoqi@0 | 127 | |
aoqi@0 | 128 | void check_spill_index (int spill_index) const { assert(spill_index >= 0, "bad index"); } |
aoqi@0 | 129 | void check_monitor_index (int monitor_index) const { assert(monitor_index >= 0 && |
aoqi@0 | 130 | monitor_index < _num_monitors, "bad index"); } |
aoqi@0 | 131 | |
aoqi@0 | 132 | static Register cpu_rnr2reg (int rnr) { |
aoqi@0 | 133 | assert(_init_done, "tables not initialized"); |
aoqi@0 | 134 | debug_only(cpu_range_check(rnr);) |
aoqi@0 | 135 | return _cpu_rnr2reg[rnr]; |
aoqi@0 | 136 | } |
aoqi@0 | 137 | |
aoqi@0 | 138 | static int cpu_reg2rnr (Register reg) { |
aoqi@0 | 139 | assert(_init_done, "tables not initialized"); |
aoqi@0 | 140 | debug_only(cpu_range_check(reg->encoding());) |
aoqi@0 | 141 | return _cpu_reg2rnr[reg->encoding()]; |
aoqi@0 | 142 | } |
aoqi@0 | 143 | |
aoqi@0 | 144 | static void map_register(int rnr, Register reg) { |
aoqi@0 | 145 | debug_only(cpu_range_check(rnr);) |
aoqi@0 | 146 | debug_only(cpu_range_check(reg->encoding());) |
aoqi@0 | 147 | _cpu_rnr2reg[rnr] = reg; |
aoqi@0 | 148 | _cpu_reg2rnr[reg->encoding()] = rnr; |
aoqi@0 | 149 | } |
aoqi@0 | 150 | |
aoqi@0 | 151 | void update_reserved_argument_area_size (int size) { |
aoqi@0 | 152 | assert(size >= 0, "check"); |
aoqi@0 | 153 | _reserved_argument_area_size = MAX2(_reserved_argument_area_size, size); |
aoqi@0 | 154 | } |
aoqi@0 | 155 | |
aoqi@0 | 156 | protected: |
aoqi@0 | 157 | #ifndef PRODUCT |
aoqi@0 | 158 | static void cpu_range_check (int rnr) { assert(0 <= rnr && rnr < nof_cpu_regs, "cpu register number is too big"); } |
aoqi@0 | 159 | static void fpu_range_check (int rnr) { assert(0 <= rnr && rnr < nof_fpu_regs, "fpu register number is too big"); } |
aoqi@0 | 160 | #endif |
aoqi@0 | 161 | |
aoqi@0 | 162 | |
aoqi@0 | 163 | ByteSize sp_offset_for_monitor_base(const int idx) const; |
aoqi@0 | 164 | |
aoqi@0 | 165 | Address make_new_address(ByteSize sp_offset) const; |
aoqi@0 | 166 | |
aoqi@0 | 167 | ByteSize sp_offset_for_slot(const int idx) const; |
aoqi@0 | 168 | ByteSize sp_offset_for_double_slot(const int idx) const; |
aoqi@0 | 169 | ByteSize sp_offset_for_spill(const int idx) const; |
aoqi@0 | 170 | ByteSize sp_offset_for_monitor_lock(int monitor_index) const; |
aoqi@0 | 171 | ByteSize sp_offset_for_monitor_object(int monitor_index) const; |
aoqi@0 | 172 | |
aoqi@0 | 173 | VMReg sp_offset2vmreg(ByteSize offset) const; |
aoqi@0 | 174 | |
aoqi@0 | 175 | // platform dependent hook used to check that frame is properly |
aoqi@0 | 176 | // addressable on the platform. Used by sparc to verify that all |
aoqi@0 | 177 | // stack addresses are expressable in a simm13. |
aoqi@0 | 178 | bool validate_frame(); |
aoqi@0 | 179 | |
aoqi@0 | 180 | static LIR_Opr map_to_opr(BasicType type, VMRegPair* reg, bool incoming); |
aoqi@0 | 181 | |
aoqi@0 | 182 | public: |
aoqi@0 | 183 | // Opr representing the stack_pointer on this platform |
aoqi@0 | 184 | static LIR_Opr stack_pointer(); |
aoqi@0 | 185 | |
aoqi@0 | 186 | // JSR 292 |
aoqi@0 | 187 | static LIR_Opr method_handle_invoke_SP_save_opr(); |
aoqi@0 | 188 | |
aoqi@0 | 189 | static BasicTypeArray* signature_type_array_for(const ciMethod* method); |
aoqi@0 | 190 | |
aoqi@0 | 191 | // for outgoing calls, these also update the reserved area to |
aoqi@0 | 192 | // include space for arguments and any ABI area. |
aoqi@0 | 193 | CallingConvention* c_calling_convention(const BasicTypeArray* signature); |
aoqi@0 | 194 | CallingConvention* java_calling_convention(const BasicTypeArray* signature, bool outgoing); |
aoqi@0 | 195 | |
aoqi@0 | 196 | // deopt support |
aoqi@0 | 197 | ByteSize sp_offset_for_orig_pc() { return sp_offset_for_monitor_base(_num_monitors); } |
aoqi@0 | 198 | |
aoqi@0 | 199 | static LIR_Opr as_opr(Register r) { |
aoqi@0 | 200 | return LIR_OprFact::single_cpu(cpu_reg2rnr(r)); |
aoqi@0 | 201 | } |
aoqi@0 | 202 | static LIR_Opr as_oop_opr(Register r) { |
aoqi@0 | 203 | return LIR_OprFact::single_cpu_oop(cpu_reg2rnr(r)); |
aoqi@0 | 204 | } |
aoqi@0 | 205 | |
aoqi@0 | 206 | static LIR_Opr as_metadata_opr(Register r) { |
aoqi@0 | 207 | return LIR_OprFact::single_cpu_metadata(cpu_reg2rnr(r)); |
aoqi@0 | 208 | } |
aoqi@0 | 209 | |
aoqi@0 | 210 | FrameMap(ciMethod* method, int monitors, int reserved_argument_area_size); |
aoqi@0 | 211 | bool finalize_frame(int nof_slots); |
aoqi@0 | 212 | |
aoqi@0 | 213 | int reserved_argument_area_size () const { return _reserved_argument_area_size; } |
aoqi@0 | 214 | int framesize () const { assert(_framesize != -1, "hasn't been calculated"); return _framesize; } |
aoqi@0 | 215 | ByteSize framesize_in_bytes () const { return in_ByteSize(framesize() * 4); } |
aoqi@0 | 216 | int num_monitors () const { return _num_monitors; } |
aoqi@0 | 217 | int num_spills () const { assert(_num_spills >= 0, "not set"); return _num_spills; } |
aoqi@0 | 218 | int argcount () const { assert(_argcount >= 0, "not set"); return _argcount; } |
aoqi@0 | 219 | |
aoqi@0 | 220 | int oop_map_arg_count() const { return _oop_map_arg_count; } |
aoqi@0 | 221 | |
aoqi@0 | 222 | CallingConvention* incoming_arguments() const { return _incoming_arguments; } |
aoqi@0 | 223 | |
aoqi@0 | 224 | // convenience routines |
aoqi@0 | 225 | Address address_for_slot(int index, int sp_adjust = 0) const { |
aoqi@0 | 226 | return make_new_address(sp_offset_for_slot(index) + in_ByteSize(sp_adjust)); |
aoqi@0 | 227 | } |
aoqi@0 | 228 | Address address_for_double_slot(int index, int sp_adjust = 0) const { |
aoqi@0 | 229 | return make_new_address(sp_offset_for_double_slot(index) + in_ByteSize(sp_adjust)); |
aoqi@0 | 230 | } |
aoqi@0 | 231 | Address address_for_monitor_lock(int monitor_index) const { |
aoqi@0 | 232 | return make_new_address(sp_offset_for_monitor_lock(monitor_index)); |
aoqi@0 | 233 | } |
aoqi@0 | 234 | Address address_for_monitor_object(int monitor_index) const { |
aoqi@0 | 235 | return make_new_address(sp_offset_for_monitor_object(monitor_index)); |
aoqi@0 | 236 | } |
aoqi@0 | 237 | |
aoqi@0 | 238 | // Creates Location describing desired slot and returns it via pointer |
aoqi@0 | 239 | // to Location object. Returns true if the stack frame offset was legal |
aoqi@0 | 240 | // (as defined by Location::legal_offset_in_bytes()), false otherwise. |
aoqi@0 | 241 | // Do not use the returned location if this returns false. |
aoqi@0 | 242 | bool location_for_sp_offset(ByteSize byte_offset_from_sp, |
aoqi@0 | 243 | Location::Type loc_type, Location* loc) const; |
aoqi@0 | 244 | |
aoqi@0 | 245 | bool location_for_monitor_lock (int monitor_index, Location* loc) const { |
aoqi@0 | 246 | return location_for_sp_offset(sp_offset_for_monitor_lock(monitor_index), Location::normal, loc); |
aoqi@0 | 247 | } |
aoqi@0 | 248 | bool location_for_monitor_object(int monitor_index, Location* loc) const { |
aoqi@0 | 249 | return location_for_sp_offset(sp_offset_for_monitor_object(monitor_index), Location::oop, loc); |
aoqi@0 | 250 | } |
aoqi@0 | 251 | bool locations_for_slot (int index, Location::Type loc_type, |
aoqi@0 | 252 | Location* loc, Location* second = NULL) const; |
aoqi@0 | 253 | |
aoqi@0 | 254 | VMReg slot_regname(int index) const { |
aoqi@0 | 255 | return sp_offset2vmreg(sp_offset_for_slot(index)); |
aoqi@0 | 256 | } |
aoqi@0 | 257 | VMReg monitor_object_regname(int monitor_index) const { |
aoqi@0 | 258 | return sp_offset2vmreg(sp_offset_for_monitor_object(monitor_index)); |
aoqi@0 | 259 | } |
aoqi@0 | 260 | VMReg regname(LIR_Opr opr) const; |
aoqi@0 | 261 | |
aoqi@0 | 262 | static LIR_Opr caller_save_cpu_reg_at(int i) { |
aoqi@0 | 263 | assert(i >= 0 && i < max_nof_caller_save_cpu_regs, "out of bounds"); |
aoqi@0 | 264 | return _caller_save_cpu_regs[i]; |
aoqi@0 | 265 | } |
aoqi@0 | 266 | |
aoqi@0 | 267 | static LIR_Opr caller_save_fpu_reg_at(int i) { |
aoqi@0 | 268 | assert(i >= 0 && i < nof_caller_save_fpu_regs, "out of bounds"); |
aoqi@0 | 269 | return _caller_save_fpu_regs[i]; |
aoqi@0 | 270 | } |
aoqi@0 | 271 | |
aoqi@0 | 272 | static void initialize(); |
aoqi@0 | 273 | }; |
aoqi@0 | 274 | |
aoqi@0 | 275 | // CallingConvention |
aoqi@0 | 276 | //-------------------------------------------------------- |
aoqi@0 | 277 | |
aoqi@0 | 278 | class CallingConvention: public ResourceObj { |
aoqi@0 | 279 | private: |
aoqi@0 | 280 | LIR_OprList* _args; |
aoqi@0 | 281 | int _reserved_stack_slots; |
aoqi@0 | 282 | |
aoqi@0 | 283 | public: |
aoqi@0 | 284 | CallingConvention (LIR_OprList* args, int reserved_stack_slots) |
aoqi@0 | 285 | : _args(args) |
aoqi@0 | 286 | , _reserved_stack_slots(reserved_stack_slots) {} |
aoqi@0 | 287 | |
aoqi@0 | 288 | LIR_OprList* args() { return _args; } |
aoqi@0 | 289 | |
aoqi@0 | 290 | LIR_Opr at(int i) const { return _args->at(i); } |
aoqi@0 | 291 | int length() const { return _args->length(); } |
aoqi@0 | 292 | |
aoqi@0 | 293 | // Indicates number of real frame slots used by arguments passed on stack. |
aoqi@0 | 294 | int reserved_stack_slots() const { return _reserved_stack_slots; } |
aoqi@0 | 295 | |
aoqi@0 | 296 | #ifndef PRODUCT |
aoqi@0 | 297 | void print () const { |
aoqi@0 | 298 | for (int i = 0; i < length(); i++) { |
aoqi@0 | 299 | at(i)->print(); |
aoqi@0 | 300 | } |
aoqi@0 | 301 | } |
aoqi@0 | 302 | #endif // PRODUCT |
aoqi@0 | 303 | }; |
aoqi@0 | 304 | |
aoqi@0 | 305 | #endif // SHARE_VM_C1_C1_FRAMEMAP_HPP |