Wed, 11 Jan 2012 17:34:02 -0500
7115199: Add event tracing hooks and Java Flight Recorder infrastructure
Summary: Added a nop tracing infrastructure, JFR makefile changes and other infrastructure used only by JFR.
Reviewed-by: acorn, sspitsyn
Contributed-by: markus.gronlund@oracle.com
jrose@1145 | 1 | /* |
twisti@2436 | 2 | * Copyright (c) 2008, 2011, Oracle and/or its affiliates. All rights reserved. |
jrose@1145 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
jrose@1145 | 4 | * |
jrose@1145 | 5 | * This code is free software; you can redistribute it and/or modify it |
jrose@1145 | 6 | * under the terms of the GNU General Public License version 2 only, as |
jrose@1145 | 7 | * published by the Free Software Foundation. |
jrose@1145 | 8 | * |
jrose@1145 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
jrose@1145 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
jrose@1145 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
jrose@1145 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
jrose@1145 | 13 | * accompanied this code). |
jrose@1145 | 14 | * |
jrose@1145 | 15 | * You should have received a copy of the GNU General Public License version |
jrose@1145 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
jrose@1145 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
jrose@1145 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
jrose@1145 | 22 | * |
jrose@1145 | 23 | */ |
jrose@1145 | 24 | |
stefank@2314 | 25 | #ifndef SHARE_VM_PRIMS_METHODHANDLES_HPP |
stefank@2314 | 26 | #define SHARE_VM_PRIMS_METHODHANDLES_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "classfile/javaClasses.hpp" |
stefank@2314 | 29 | #include "classfile/vmSymbols.hpp" |
stefank@2314 | 30 | #include "runtime/frame.inline.hpp" |
stefank@2314 | 31 | #include "runtime/globals.hpp" |
stefank@2314 | 32 | #include "runtime/interfaceSupport.hpp" |
stefank@2314 | 33 | |
jrose@1145 | 34 | class MacroAssembler; |
jrose@1145 | 35 | class Label; |
jrose@1145 | 36 | class MethodHandleEntry; |
jrose@1145 | 37 | |
jrose@1145 | 38 | class MethodHandles: AllStatic { |
jrose@1145 | 39 | // JVM support for MethodHandle, MethodType, and related types |
jrose@2639 | 40 | // in java.lang.invoke and sun.invoke. |
jrose@2639 | 41 | // See also javaClasses for layouts java_lang_invoke_Method{Handle,Type,Type::Form}. |
jrose@1145 | 42 | public: |
jrose@1145 | 43 | enum EntryKind { |
jrose@1474 | 44 | _raise_exception, // stub for error generation from other stubs |
jrose@1145 | 45 | _invokestatic_mh, // how a MH emulates invokestatic |
jrose@1145 | 46 | _invokespecial_mh, // ditto for the other invokes... |
jrose@1145 | 47 | _invokevirtual_mh, |
jrose@1145 | 48 | _invokeinterface_mh, |
jrose@1145 | 49 | _bound_ref_mh, // reference argument is bound |
jrose@1145 | 50 | _bound_int_mh, // int argument is bound (via an Integer or Float) |
jrose@1145 | 51 | _bound_long_mh, // long argument is bound (via a Long or Double) |
jrose@1145 | 52 | _bound_ref_direct_mh, // same as above, with direct linkage to methodOop |
jrose@1145 | 53 | _bound_int_direct_mh, |
jrose@1145 | 54 | _bound_long_direct_mh, |
jrose@1145 | 55 | |
jrose@1145 | 56 | _adapter_mh_first, // adapter sequence goes here... |
jrose@2639 | 57 | _adapter_retype_only = _adapter_mh_first + java_lang_invoke_AdapterMethodHandle::OP_RETYPE_ONLY, |
jrose@2639 | 58 | _adapter_retype_raw = _adapter_mh_first + java_lang_invoke_AdapterMethodHandle::OP_RETYPE_RAW, |
jrose@2639 | 59 | _adapter_check_cast = _adapter_mh_first + java_lang_invoke_AdapterMethodHandle::OP_CHECK_CAST, |
jrose@2639 | 60 | _adapter_prim_to_prim = _adapter_mh_first + java_lang_invoke_AdapterMethodHandle::OP_PRIM_TO_PRIM, |
jrose@2639 | 61 | _adapter_ref_to_prim = _adapter_mh_first + java_lang_invoke_AdapterMethodHandle::OP_REF_TO_PRIM, |
jrose@2639 | 62 | _adapter_prim_to_ref = _adapter_mh_first + java_lang_invoke_AdapterMethodHandle::OP_PRIM_TO_REF, |
jrose@2639 | 63 | _adapter_swap_args = _adapter_mh_first + java_lang_invoke_AdapterMethodHandle::OP_SWAP_ARGS, |
jrose@2639 | 64 | _adapter_rot_args = _adapter_mh_first + java_lang_invoke_AdapterMethodHandle::OP_ROT_ARGS, |
jrose@2639 | 65 | _adapter_dup_args = _adapter_mh_first + java_lang_invoke_AdapterMethodHandle::OP_DUP_ARGS, |
jrose@2639 | 66 | _adapter_drop_args = _adapter_mh_first + java_lang_invoke_AdapterMethodHandle::OP_DROP_ARGS, |
jrose@2639 | 67 | _adapter_collect_args = _adapter_mh_first + java_lang_invoke_AdapterMethodHandle::OP_COLLECT_ARGS, |
jrose@2639 | 68 | _adapter_spread_args = _adapter_mh_first + java_lang_invoke_AdapterMethodHandle::OP_SPREAD_ARGS, |
never@2895 | 69 | _adapter_fold_args = _adapter_mh_first + java_lang_invoke_AdapterMethodHandle::OP_FOLD_ARGS, |
never@2895 | 70 | _adapter_unused_13 = _adapter_mh_first + 13, //hole in the CONV_OP enumeration |
jrose@2639 | 71 | _adapter_mh_last = _adapter_mh_first + java_lang_invoke_AdapterMethodHandle::CONV_OP_LIMIT - 1, |
jrose@1145 | 72 | |
jrose@1145 | 73 | // Optimized adapter types |
jrose@1145 | 74 | |
jrose@1145 | 75 | // argument list reordering |
jrose@1145 | 76 | _adapter_opt_swap_1, |
jrose@1145 | 77 | _adapter_opt_swap_2, |
jrose@1145 | 78 | _adapter_opt_rot_1_up, |
jrose@1145 | 79 | _adapter_opt_rot_1_down, |
jrose@1145 | 80 | _adapter_opt_rot_2_up, |
jrose@1145 | 81 | _adapter_opt_rot_2_down, |
jrose@1145 | 82 | // primitive single to single: |
jrose@1145 | 83 | _adapter_opt_i2i, // i2c, i2z, i2b, i2s |
jrose@1145 | 84 | // primitive double to single: |
jrose@1145 | 85 | _adapter_opt_l2i, |
jrose@1145 | 86 | _adapter_opt_d2f, |
jrose@1145 | 87 | // primitive single to double: |
jrose@1145 | 88 | _adapter_opt_i2l, |
jrose@1145 | 89 | _adapter_opt_f2d, |
jrose@1145 | 90 | // conversion between floating point and integer type is handled by Java |
jrose@1145 | 91 | |
jrose@1145 | 92 | // reference to primitive: |
jrose@1145 | 93 | _adapter_opt_unboxi, |
jrose@1145 | 94 | _adapter_opt_unboxl, |
jrose@1145 | 95 | |
never@2895 | 96 | // %% Maybe tame the following with a VM_SYMBOLS_DO type macro? |
never@2895 | 97 | |
never@2895 | 98 | // how a blocking adapter returns (platform-dependent) |
never@2895 | 99 | _adapter_opt_return_ref, |
never@2895 | 100 | _adapter_opt_return_int, |
never@2895 | 101 | _adapter_opt_return_long, |
never@2895 | 102 | _adapter_opt_return_float, |
never@2895 | 103 | _adapter_opt_return_double, |
never@2895 | 104 | _adapter_opt_return_void, |
never@2895 | 105 | _adapter_opt_return_S0_ref, // return ref to S=0 (last slot) |
never@2895 | 106 | _adapter_opt_return_S1_ref, // return ref to S=1 (2nd-to-last slot) |
never@2895 | 107 | _adapter_opt_return_S2_ref, |
never@2895 | 108 | _adapter_opt_return_S3_ref, |
never@2895 | 109 | _adapter_opt_return_S4_ref, |
never@2895 | 110 | _adapter_opt_return_S5_ref, |
never@2895 | 111 | _adapter_opt_return_any, // dynamically select r/i/l/f/d |
never@2895 | 112 | _adapter_opt_return_FIRST = _adapter_opt_return_ref, |
never@2895 | 113 | _adapter_opt_return_LAST = _adapter_opt_return_any, |
never@2895 | 114 | |
never@2895 | 115 | // spreading (array length cases 0, 1, ...) |
never@2895 | 116 | _adapter_opt_spread_0, // spread empty array to N=0 arguments |
never@2895 | 117 | _adapter_opt_spread_1_ref, // spread Object[] to N=1 argument |
never@2895 | 118 | _adapter_opt_spread_2_ref, // spread Object[] to N=2 arguments |
never@2895 | 119 | _adapter_opt_spread_3_ref, // spread Object[] to N=3 arguments |
never@2895 | 120 | _adapter_opt_spread_4_ref, // spread Object[] to N=4 arguments |
never@2895 | 121 | _adapter_opt_spread_5_ref, // spread Object[] to N=5 arguments |
never@2895 | 122 | _adapter_opt_spread_ref, // spread Object[] to N arguments |
never@2895 | 123 | _adapter_opt_spread_byte, // spread byte[] or boolean[] to N arguments |
never@2895 | 124 | _adapter_opt_spread_char, // spread char[], etc., to N arguments |
never@2895 | 125 | _adapter_opt_spread_short, // spread short[], etc., to N arguments |
never@2895 | 126 | _adapter_opt_spread_int, // spread int[], short[], etc., to N arguments |
never@2895 | 127 | _adapter_opt_spread_long, // spread long[] to N arguments |
never@2895 | 128 | _adapter_opt_spread_float, // spread float[] to N arguments |
never@2895 | 129 | _adapter_opt_spread_double, // spread double[] to N arguments |
never@2895 | 130 | _adapter_opt_spread_FIRST = _adapter_opt_spread_0, |
never@2895 | 131 | _adapter_opt_spread_LAST = _adapter_opt_spread_double, |
never@2895 | 132 | |
never@2895 | 133 | // blocking filter/collect conversions |
never@2895 | 134 | // These collect N arguments and replace them (at slot S) by a return value |
never@2895 | 135 | // which is passed to the final target, along with the unaffected arguments. |
never@2895 | 136 | // collect_{N}_{T} collects N arguments at any position into a T value |
never@2895 | 137 | // collect_{N}_S{S}_{T} collects N arguments at slot S into a T value |
never@2895 | 138 | // collect_{T} collects any number of arguments at any position |
never@2895 | 139 | // filter_S{S}_{T} is the same as collect_1_S{S}_{T} (a unary collection) |
never@2895 | 140 | // (collect_2 is also usable as a filter, with long or double arguments) |
never@2895 | 141 | _adapter_opt_collect_ref, // combine N arguments, replace with a reference |
never@2895 | 142 | _adapter_opt_collect_int, // combine N arguments, replace with an int, short, etc. |
never@2895 | 143 | _adapter_opt_collect_long, // combine N arguments, replace with a long |
never@2895 | 144 | _adapter_opt_collect_float, // combine N arguments, replace with a float |
never@2895 | 145 | _adapter_opt_collect_double, // combine N arguments, replace with a double |
never@2895 | 146 | _adapter_opt_collect_void, // combine N arguments, replace with nothing |
never@2895 | 147 | // if there is a small fixed number to push, do so without a loop: |
never@2895 | 148 | _adapter_opt_collect_0_ref, // collect N=0 arguments, insert a reference |
never@2895 | 149 | _adapter_opt_collect_1_ref, // collect N=1 argument, replace with a reference |
never@2895 | 150 | _adapter_opt_collect_2_ref, // combine N=2 arguments, replace with a reference |
never@2895 | 151 | _adapter_opt_collect_3_ref, // combine N=3 arguments, replace with a reference |
never@2895 | 152 | _adapter_opt_collect_4_ref, // combine N=4 arguments, replace with a reference |
never@2895 | 153 | _adapter_opt_collect_5_ref, // combine N=5 arguments, replace with a reference |
never@2895 | 154 | // filters are an important special case because they never move arguments: |
never@2895 | 155 | _adapter_opt_filter_S0_ref, // filter N=1 argument at S=0, replace with a reference |
never@2895 | 156 | _adapter_opt_filter_S1_ref, // filter N=1 argument at S=1, replace with a reference |
never@2895 | 157 | _adapter_opt_filter_S2_ref, // filter N=1 argument at S=2, replace with a reference |
never@2895 | 158 | _adapter_opt_filter_S3_ref, // filter N=1 argument at S=3, replace with a reference |
never@2895 | 159 | _adapter_opt_filter_S4_ref, // filter N=1 argument at S=4, replace with a reference |
never@2895 | 160 | _adapter_opt_filter_S5_ref, // filter N=1 argument at S=5, replace with a reference |
never@2895 | 161 | // these move arguments, but they are important for boxing |
never@2895 | 162 | _adapter_opt_collect_2_S0_ref, // combine last N=2 arguments, replace with a reference |
never@2895 | 163 | _adapter_opt_collect_2_S1_ref, // combine N=2 arguments at S=1, replace with a reference |
never@2895 | 164 | _adapter_opt_collect_2_S2_ref, // combine N=2 arguments at S=2, replace with a reference |
never@2895 | 165 | _adapter_opt_collect_2_S3_ref, // combine N=2 arguments at S=3, replace with a reference |
never@2895 | 166 | _adapter_opt_collect_2_S4_ref, // combine N=2 arguments at S=4, replace with a reference |
never@2895 | 167 | _adapter_opt_collect_2_S5_ref, // combine N=2 arguments at S=5, replace with a reference |
never@2895 | 168 | _adapter_opt_collect_FIRST = _adapter_opt_collect_ref, |
never@2895 | 169 | _adapter_opt_collect_LAST = _adapter_opt_collect_2_S5_ref, |
never@2895 | 170 | |
never@2895 | 171 | // blocking folding conversions |
never@2895 | 172 | // these are like collects, but retain all the N arguments for the final target |
never@2895 | 173 | //_adapter_opt_fold_0_ref, // same as _adapter_opt_collect_0_ref |
never@2895 | 174 | // fold_{N}_{T} processes N arguments at any position into a T value, which it inserts |
never@2895 | 175 | // fold_{T} processes any number of arguments at any position |
never@2895 | 176 | _adapter_opt_fold_ref, // process N arguments, prepend a reference |
never@2895 | 177 | _adapter_opt_fold_int, // process N arguments, prepend an int, short, etc. |
never@2895 | 178 | _adapter_opt_fold_long, // process N arguments, prepend a long |
never@2895 | 179 | _adapter_opt_fold_float, // process N arguments, prepend a float |
never@2895 | 180 | _adapter_opt_fold_double, // process N arguments, prepend a double |
never@2895 | 181 | _adapter_opt_fold_void, // process N arguments, but leave the list unchanged |
never@2895 | 182 | _adapter_opt_fold_1_ref, // process N=1 argument, prepend a reference |
never@2895 | 183 | _adapter_opt_fold_2_ref, // process N=2 arguments, prepend a reference |
never@2895 | 184 | _adapter_opt_fold_3_ref, // process N=3 arguments, prepend a reference |
never@2895 | 185 | _adapter_opt_fold_4_ref, // process N=4 arguments, prepend a reference |
never@2895 | 186 | _adapter_opt_fold_5_ref, // process N=5 arguments, prepend a reference |
never@2895 | 187 | _adapter_opt_fold_FIRST = _adapter_opt_fold_ref, |
never@2895 | 188 | _adapter_opt_fold_LAST = _adapter_opt_fold_5_ref, |
jrose@1145 | 189 | |
never@3105 | 190 | _adapter_opt_profiling, |
never@3105 | 191 | |
jrose@1145 | 192 | _EK_LIMIT, |
jrose@1145 | 193 | _EK_FIRST = 0 |
jrose@1145 | 194 | }; |
jrose@1145 | 195 | |
jrose@1145 | 196 | public: |
jrose@1145 | 197 | static bool enabled() { return _enabled; } |
jrose@1145 | 198 | static void set_enabled(bool z); |
jrose@1145 | 199 | |
jrose@1145 | 200 | private: |
jrose@2639 | 201 | enum { // import java_lang_invoke_AdapterMethodHandle::CONV_OP_* |
jrose@2639 | 202 | CONV_OP_LIMIT = java_lang_invoke_AdapterMethodHandle::CONV_OP_LIMIT, |
jrose@2639 | 203 | CONV_OP_MASK = java_lang_invoke_AdapterMethodHandle::CONV_OP_MASK, |
never@2895 | 204 | CONV_TYPE_MASK = java_lang_invoke_AdapterMethodHandle::CONV_TYPE_MASK, |
jrose@2639 | 205 | CONV_VMINFO_MASK = java_lang_invoke_AdapterMethodHandle::CONV_VMINFO_MASK, |
jrose@2639 | 206 | CONV_VMINFO_SHIFT = java_lang_invoke_AdapterMethodHandle::CONV_VMINFO_SHIFT, |
jrose@2639 | 207 | CONV_OP_SHIFT = java_lang_invoke_AdapterMethodHandle::CONV_OP_SHIFT, |
jrose@2639 | 208 | CONV_DEST_TYPE_SHIFT = java_lang_invoke_AdapterMethodHandle::CONV_DEST_TYPE_SHIFT, |
jrose@2639 | 209 | CONV_SRC_TYPE_SHIFT = java_lang_invoke_AdapterMethodHandle::CONV_SRC_TYPE_SHIFT, |
jrose@2639 | 210 | CONV_STACK_MOVE_SHIFT = java_lang_invoke_AdapterMethodHandle::CONV_STACK_MOVE_SHIFT, |
jrose@2639 | 211 | CONV_STACK_MOVE_MASK = java_lang_invoke_AdapterMethodHandle::CONV_STACK_MOVE_MASK |
jrose@1145 | 212 | }; |
jrose@1145 | 213 | |
jrose@1145 | 214 | static bool _enabled; |
jrose@1145 | 215 | static MethodHandleEntry* _entries[_EK_LIMIT]; |
jrose@1145 | 216 | static const char* _entry_names[_EK_LIMIT+1]; |
jrose@1474 | 217 | static jobject _raise_exception_method; |
never@2895 | 218 | static address _adapter_return_handlers[CONV_TYPE_MASK+1]; |
jrose@1474 | 219 | |
twisti@1734 | 220 | // Adapters. |
twisti@1734 | 221 | static MethodHandlesAdapterBlob* _adapter_code; |
twisti@1734 | 222 | |
jrose@1145 | 223 | static bool ek_valid(EntryKind ek) { return (uint)ek < (uint)_EK_LIMIT; } |
jrose@1145 | 224 | static bool conv_op_valid(int op) { return (uint)op < (uint)CONV_OP_LIMIT; } |
jrose@1145 | 225 | |
jrose@1145 | 226 | public: |
jrose@1145 | 227 | static bool have_entry(EntryKind ek) { return ek_valid(ek) && _entries[ek] != NULL; } |
jrose@1145 | 228 | static MethodHandleEntry* entry(EntryKind ek) { assert(ek_valid(ek), "initialized"); |
jrose@1145 | 229 | return _entries[ek]; } |
jrose@1145 | 230 | static const char* entry_name(EntryKind ek) { assert(ek_valid(ek), "oob"); |
jrose@1145 | 231 | return _entry_names[ek]; } |
jrose@1145 | 232 | static EntryKind adapter_entry_kind(int op) { assert(conv_op_valid(op), "oob"); |
jrose@1145 | 233 | return EntryKind(_adapter_mh_first + op); } |
jrose@1145 | 234 | |
jrose@1145 | 235 | static void init_entry(EntryKind ek, MethodHandleEntry* me) { |
jrose@1145 | 236 | assert(ek_valid(ek), "oob"); |
jrose@1145 | 237 | assert(_entries[ek] == NULL, "no double initialization"); |
jrose@1145 | 238 | _entries[ek] = me; |
jrose@1145 | 239 | } |
jrose@1145 | 240 | |
twisti@1739 | 241 | // Some adapter helper functions. |
never@2895 | 242 | static EntryKind ek_original_kind(EntryKind ek) { |
never@2895 | 243 | if (ek <= _adapter_mh_last) return ek; |
twisti@1739 | 244 | switch (ek) { |
never@2895 | 245 | case _adapter_opt_swap_1: |
never@2895 | 246 | case _adapter_opt_swap_2: |
never@2895 | 247 | return _adapter_swap_args; |
never@2895 | 248 | case _adapter_opt_rot_1_up: |
never@2895 | 249 | case _adapter_opt_rot_1_down: |
never@2895 | 250 | case _adapter_opt_rot_2_up: |
never@2895 | 251 | case _adapter_opt_rot_2_down: |
never@2895 | 252 | return _adapter_rot_args; |
never@2895 | 253 | case _adapter_opt_i2i: |
never@2895 | 254 | case _adapter_opt_l2i: |
never@2895 | 255 | case _adapter_opt_d2f: |
never@2895 | 256 | case _adapter_opt_i2l: |
never@2895 | 257 | case _adapter_opt_f2d: |
never@2895 | 258 | return _adapter_prim_to_prim; |
never@2895 | 259 | case _adapter_opt_unboxi: |
never@2895 | 260 | case _adapter_opt_unboxl: |
never@2895 | 261 | return _adapter_ref_to_prim; |
twisti@1739 | 262 | } |
never@2895 | 263 | if (ek >= _adapter_opt_spread_FIRST && ek <= _adapter_opt_spread_LAST) |
never@2895 | 264 | return _adapter_spread_args; |
never@2895 | 265 | if (ek >= _adapter_opt_collect_FIRST && ek <= _adapter_opt_collect_LAST) |
never@2895 | 266 | return _adapter_collect_args; |
never@2895 | 267 | if (ek >= _adapter_opt_fold_FIRST && ek <= _adapter_opt_fold_LAST) |
never@2895 | 268 | return _adapter_fold_args; |
never@2895 | 269 | if (ek >= _adapter_opt_return_FIRST && ek <= _adapter_opt_return_LAST) |
never@2895 | 270 | return _adapter_opt_return_any; |
never@3105 | 271 | if (ek == _adapter_opt_profiling) |
never@3105 | 272 | return _adapter_retype_only; |
never@2895 | 273 | assert(false, "oob"); |
never@2895 | 274 | return _EK_LIMIT; |
twisti@1739 | 275 | } |
twisti@1739 | 276 | |
never@2895 | 277 | static bool ek_supported(MethodHandles::EntryKind ek); |
never@2895 | 278 | |
never@2895 | 279 | static BasicType ek_bound_mh_arg_type(EntryKind ek) { |
twisti@1739 | 280 | switch (ek) { |
never@2895 | 281 | case _bound_int_mh : // fall-thru |
never@2895 | 282 | case _bound_int_direct_mh : return T_INT; |
never@2895 | 283 | case _bound_long_mh : // fall-thru |
never@2895 | 284 | case _bound_long_direct_mh : return T_LONG; |
never@2895 | 285 | default : return T_OBJECT; |
twisti@1739 | 286 | } |
twisti@1739 | 287 | } |
twisti@1739 | 288 | |
never@2895 | 289 | static int ek_adapter_opt_swap_slots(EntryKind ek) { |
twisti@1739 | 290 | switch (ek) { |
never@2895 | 291 | case _adapter_opt_swap_1 : return 1; |
never@2895 | 292 | case _adapter_opt_swap_2 : return 2; |
never@2895 | 293 | case _adapter_opt_rot_1_up : return 1; |
never@2895 | 294 | case _adapter_opt_rot_1_down : return 1; |
never@2895 | 295 | case _adapter_opt_rot_2_up : return 2; |
never@2895 | 296 | case _adapter_opt_rot_2_down : return 2; |
never@2895 | 297 | default : ShouldNotReachHere(); return -1; |
never@2895 | 298 | } |
never@2895 | 299 | } |
never@2895 | 300 | |
never@2895 | 301 | static int ek_adapter_opt_swap_mode(EntryKind ek) { |
never@2895 | 302 | switch (ek) { |
never@2895 | 303 | case _adapter_opt_swap_1 : return 0; |
never@2895 | 304 | case _adapter_opt_swap_2 : return 0; |
never@2895 | 305 | case _adapter_opt_rot_1_up : return 1; |
never@2895 | 306 | case _adapter_opt_rot_1_down : return -1; |
never@2895 | 307 | case _adapter_opt_rot_2_up : return 1; |
never@2895 | 308 | case _adapter_opt_rot_2_down : return -1; |
never@2895 | 309 | default : ShouldNotReachHere(); return 0; |
never@2895 | 310 | } |
never@2895 | 311 | } |
never@2895 | 312 | |
never@2895 | 313 | static int ek_adapter_opt_collect_count(EntryKind ek) { |
never@2895 | 314 | assert(ek >= _adapter_opt_collect_FIRST && ek <= _adapter_opt_collect_LAST || |
never@2895 | 315 | ek >= _adapter_opt_fold_FIRST && ek <= _adapter_opt_fold_LAST, ""); |
never@2895 | 316 | switch (ek) { |
never@2895 | 317 | case _adapter_opt_collect_0_ref : return 0; |
never@2895 | 318 | case _adapter_opt_filter_S0_ref : |
never@2895 | 319 | case _adapter_opt_filter_S1_ref : |
never@2895 | 320 | case _adapter_opt_filter_S2_ref : |
never@2895 | 321 | case _adapter_opt_filter_S3_ref : |
never@2895 | 322 | case _adapter_opt_filter_S4_ref : |
never@2895 | 323 | case _adapter_opt_filter_S5_ref : |
never@2895 | 324 | case _adapter_opt_fold_1_ref : |
never@2895 | 325 | case _adapter_opt_collect_1_ref : return 1; |
never@2895 | 326 | case _adapter_opt_collect_2_S0_ref : |
never@2895 | 327 | case _adapter_opt_collect_2_S1_ref : |
never@2895 | 328 | case _adapter_opt_collect_2_S2_ref : |
never@2895 | 329 | case _adapter_opt_collect_2_S3_ref : |
never@2895 | 330 | case _adapter_opt_collect_2_S4_ref : |
never@2895 | 331 | case _adapter_opt_collect_2_S5_ref : |
never@2895 | 332 | case _adapter_opt_fold_2_ref : |
never@2895 | 333 | case _adapter_opt_collect_2_ref : return 2; |
never@2895 | 334 | case _adapter_opt_fold_3_ref : |
never@2895 | 335 | case _adapter_opt_collect_3_ref : return 3; |
never@2895 | 336 | case _adapter_opt_fold_4_ref : |
never@2895 | 337 | case _adapter_opt_collect_4_ref : return 4; |
never@2895 | 338 | case _adapter_opt_fold_5_ref : |
never@2895 | 339 | case _adapter_opt_collect_5_ref : return 5; |
never@2895 | 340 | default : return -1; // sentinel value for "variable" |
never@2895 | 341 | } |
never@2895 | 342 | } |
never@2895 | 343 | |
never@2895 | 344 | static int ek_adapter_opt_collect_slot(EntryKind ek) { |
never@2895 | 345 | assert(ek >= _adapter_opt_collect_FIRST && ek <= _adapter_opt_collect_LAST || |
never@2895 | 346 | ek >= _adapter_opt_fold_FIRST && ek <= _adapter_opt_fold_LAST, ""); |
never@2895 | 347 | switch (ek) { |
never@2895 | 348 | case _adapter_opt_collect_2_S0_ref : |
never@2895 | 349 | case _adapter_opt_filter_S0_ref : return 0; |
never@2895 | 350 | case _adapter_opt_collect_2_S1_ref : |
never@2895 | 351 | case _adapter_opt_filter_S1_ref : return 1; |
never@2895 | 352 | case _adapter_opt_collect_2_S2_ref : |
never@2895 | 353 | case _adapter_opt_filter_S2_ref : return 2; |
never@2895 | 354 | case _adapter_opt_collect_2_S3_ref : |
never@2895 | 355 | case _adapter_opt_filter_S3_ref : return 3; |
never@2895 | 356 | case _adapter_opt_collect_2_S4_ref : |
never@2895 | 357 | case _adapter_opt_filter_S4_ref : return 4; |
never@2895 | 358 | case _adapter_opt_collect_2_S5_ref : |
never@2895 | 359 | case _adapter_opt_filter_S5_ref : return 5; |
never@2895 | 360 | default : return -1; // sentinel value for "variable" |
never@2895 | 361 | } |
never@2895 | 362 | } |
never@2895 | 363 | |
never@2895 | 364 | static BasicType ek_adapter_opt_collect_type(EntryKind ek) { |
never@2895 | 365 | assert(ek >= _adapter_opt_collect_FIRST && ek <= _adapter_opt_collect_LAST || |
never@2895 | 366 | ek >= _adapter_opt_fold_FIRST && ek <= _adapter_opt_fold_LAST, ""); |
never@2895 | 367 | switch (ek) { |
never@2895 | 368 | case _adapter_opt_fold_int : |
never@2895 | 369 | case _adapter_opt_collect_int : return T_INT; |
never@2895 | 370 | case _adapter_opt_fold_long : |
never@2895 | 371 | case _adapter_opt_collect_long : return T_LONG; |
never@2895 | 372 | case _adapter_opt_fold_float : |
never@2895 | 373 | case _adapter_opt_collect_float : return T_FLOAT; |
never@2895 | 374 | case _adapter_opt_fold_double : |
never@2895 | 375 | case _adapter_opt_collect_double : return T_DOUBLE; |
never@2895 | 376 | case _adapter_opt_fold_void : |
never@2895 | 377 | case _adapter_opt_collect_void : return T_VOID; |
never@2895 | 378 | default : return T_OBJECT; |
never@2895 | 379 | } |
never@2895 | 380 | } |
never@2895 | 381 | |
never@2895 | 382 | static int ek_adapter_opt_return_slot(EntryKind ek) { |
never@2895 | 383 | assert(ek >= _adapter_opt_return_FIRST && ek <= _adapter_opt_return_LAST, ""); |
never@2895 | 384 | switch (ek) { |
never@2895 | 385 | case _adapter_opt_return_S0_ref : return 0; |
never@2895 | 386 | case _adapter_opt_return_S1_ref : return 1; |
never@2895 | 387 | case _adapter_opt_return_S2_ref : return 2; |
never@2895 | 388 | case _adapter_opt_return_S3_ref : return 3; |
never@2895 | 389 | case _adapter_opt_return_S4_ref : return 4; |
never@2895 | 390 | case _adapter_opt_return_S5_ref : return 5; |
never@2895 | 391 | default : return -1; // sentinel value for "variable" |
never@2895 | 392 | } |
never@2895 | 393 | } |
never@2895 | 394 | |
never@2895 | 395 | static BasicType ek_adapter_opt_return_type(EntryKind ek) { |
never@2895 | 396 | assert(ek >= _adapter_opt_return_FIRST && ek <= _adapter_opt_return_LAST, ""); |
never@2895 | 397 | switch (ek) { |
never@2895 | 398 | case _adapter_opt_return_int : return T_INT; |
never@2895 | 399 | case _adapter_opt_return_long : return T_LONG; |
never@2895 | 400 | case _adapter_opt_return_float : return T_FLOAT; |
never@2895 | 401 | case _adapter_opt_return_double : return T_DOUBLE; |
never@2895 | 402 | case _adapter_opt_return_void : return T_VOID; |
never@2895 | 403 | case _adapter_opt_return_any : return T_CONFLICT; // sentinel value for "variable" |
never@2895 | 404 | default : return T_OBJECT; |
never@2895 | 405 | } |
never@2895 | 406 | } |
never@2895 | 407 | |
never@2895 | 408 | static int ek_adapter_opt_spread_count(EntryKind ek) { |
never@2895 | 409 | assert(ek >= _adapter_opt_spread_FIRST && ek <= _adapter_opt_spread_LAST, ""); |
never@2895 | 410 | switch (ek) { |
never@2895 | 411 | case _adapter_opt_spread_0 : return 0; |
never@2895 | 412 | case _adapter_opt_spread_1_ref : return 1; |
never@2895 | 413 | case _adapter_opt_spread_2_ref : return 2; |
never@2895 | 414 | case _adapter_opt_spread_3_ref : return 3; |
never@2895 | 415 | case _adapter_opt_spread_4_ref : return 4; |
never@2895 | 416 | case _adapter_opt_spread_5_ref : return 5; |
never@2895 | 417 | default : return -1; // sentinel value for "variable" |
never@2895 | 418 | } |
never@2895 | 419 | } |
never@2895 | 420 | |
never@2895 | 421 | static BasicType ek_adapter_opt_spread_type(EntryKind ek) { |
never@2895 | 422 | assert(ek >= _adapter_opt_spread_FIRST && ek <= _adapter_opt_spread_LAST, ""); |
never@2895 | 423 | switch (ek) { |
never@2895 | 424 | // (there is no _adapter_opt_spread_boolean; we use byte) |
never@2895 | 425 | case _adapter_opt_spread_byte : return T_BYTE; |
never@2895 | 426 | case _adapter_opt_spread_char : return T_CHAR; |
never@2895 | 427 | case _adapter_opt_spread_short : return T_SHORT; |
never@2895 | 428 | case _adapter_opt_spread_int : return T_INT; |
never@2895 | 429 | case _adapter_opt_spread_long : return T_LONG; |
never@2895 | 430 | case _adapter_opt_spread_float : return T_FLOAT; |
never@2895 | 431 | case _adapter_opt_spread_double : return T_DOUBLE; |
never@2895 | 432 | default : return T_OBJECT; |
twisti@1739 | 433 | } |
twisti@1739 | 434 | } |
twisti@1739 | 435 | |
jrose@1474 | 436 | static methodOop raise_exception_method() { |
jrose@1474 | 437 | oop rem = JNIHandles::resolve(_raise_exception_method); |
jrose@1474 | 438 | assert(rem == NULL || rem->is_method(), ""); |
jrose@1474 | 439 | return (methodOop) rem; |
jrose@1474 | 440 | } |
jrose@1474 | 441 | static void set_raise_exception_method(methodOop rem) { |
jrose@1474 | 442 | assert(_raise_exception_method == NULL, ""); |
jrose@1474 | 443 | _raise_exception_method = JNIHandles::make_global(Handle(rem)); |
jrose@1474 | 444 | } |
jrose@2941 | 445 | static methodOop resolve_raise_exception_method(TRAPS); |
jrose@2941 | 446 | // call raise_exception_method from C code: |
jrose@2941 | 447 | static void raise_exception(int code, oop actual, oop required, TRAPS); |
jrose@1474 | 448 | |
jrose@1145 | 449 | static jint adapter_conversion(int conv_op, BasicType src, BasicType dest, |
jrose@1145 | 450 | int stack_move = 0, int vminfo = 0) { |
jrose@1145 | 451 | assert(conv_op_valid(conv_op), "oob"); |
jrose@1145 | 452 | jint conv = ((conv_op << CONV_OP_SHIFT) |
jrose@1145 | 453 | | (src << CONV_SRC_TYPE_SHIFT) |
jrose@1145 | 454 | | (dest << CONV_DEST_TYPE_SHIFT) |
jrose@1145 | 455 | | (stack_move << CONV_STACK_MOVE_SHIFT) |
jrose@1145 | 456 | | (vminfo << CONV_VMINFO_SHIFT) |
jrose@1145 | 457 | ); |
jrose@1145 | 458 | assert(adapter_conversion_op(conv) == conv_op, "decode conv_op"); |
jrose@1145 | 459 | assert(adapter_conversion_src_type(conv) == src, "decode src"); |
jrose@1145 | 460 | assert(adapter_conversion_dest_type(conv) == dest, "decode dest"); |
jrose@1145 | 461 | assert(adapter_conversion_stack_move(conv) == stack_move, "decode stack_move"); |
jrose@1145 | 462 | assert(adapter_conversion_vminfo(conv) == vminfo, "decode vminfo"); |
jrose@1145 | 463 | return conv; |
jrose@1145 | 464 | } |
jrose@1145 | 465 | static int adapter_conversion_op(jint conv) { |
jrose@1145 | 466 | return ((conv >> CONV_OP_SHIFT) & 0xF); |
jrose@1145 | 467 | } |
jrose@1145 | 468 | static BasicType adapter_conversion_src_type(jint conv) { |
jrose@1145 | 469 | return (BasicType)((conv >> CONV_SRC_TYPE_SHIFT) & 0xF); |
jrose@1145 | 470 | } |
jrose@1145 | 471 | static BasicType adapter_conversion_dest_type(jint conv) { |
jrose@1145 | 472 | return (BasicType)((conv >> CONV_DEST_TYPE_SHIFT) & 0xF); |
jrose@1145 | 473 | } |
jrose@1145 | 474 | static int adapter_conversion_stack_move(jint conv) { |
jrose@1145 | 475 | return (conv >> CONV_STACK_MOVE_SHIFT); |
jrose@1145 | 476 | } |
jrose@1145 | 477 | static int adapter_conversion_vminfo(jint conv) { |
jrose@1145 | 478 | return (conv >> CONV_VMINFO_SHIFT) & CONV_VMINFO_MASK; |
jrose@1145 | 479 | } |
jrose@1145 | 480 | |
jrose@1862 | 481 | // Bit mask of conversion_op values. May vary by platform. |
jrose@1862 | 482 | static int adapter_conversion_ops_supported_mask(); |
jrose@1862 | 483 | |
never@2895 | 484 | static bool conv_op_supported(int conv_op) { |
never@2895 | 485 | assert(conv_op_valid(conv_op), ""); |
never@2895 | 486 | return ((adapter_conversion_ops_supported_mask() & nth_bit(conv_op)) != 0); |
never@2895 | 487 | } |
never@2895 | 488 | |
jrose@1145 | 489 | // Offset in words that the interpreter stack pointer moves when an argument is pushed. |
jrose@1145 | 490 | // The stack_move value must always be a multiple of this. |
jrose@1145 | 491 | static int stack_move_unit() { |
twisti@1861 | 492 | return frame::interpreter_frame_expression_stack_direction() * Interpreter::stackElementWords; |
jrose@1145 | 493 | } |
jrose@1145 | 494 | |
never@2895 | 495 | // Adapter frame traversal. (Implementation-specific.) |
never@2895 | 496 | static frame ricochet_frame_sender(const frame& fr, RegisterMap* reg_map); |
never@2895 | 497 | static void ricochet_frame_oops_do(const frame& fr, OopClosure* blk, const RegisterMap* reg_map); |
never@2895 | 498 | |
jrose@1145 | 499 | enum { CONV_VMINFO_SIGN_FLAG = 0x80 }; |
twisti@2204 | 500 | // Shift values for prim-to-prim conversions. |
twisti@2204 | 501 | static int adapter_prim_to_prim_subword_vminfo(BasicType dest) { |
twisti@2204 | 502 | if (dest == T_BOOLEAN) return (BitsPerInt - 1); // boolean is 1 bit |
twisti@2204 | 503 | if (dest == T_CHAR) return (BitsPerInt - BitsPerShort); |
twisti@2204 | 504 | if (dest == T_BYTE) return (BitsPerInt - BitsPerByte ) | CONV_VMINFO_SIGN_FLAG; |
twisti@2204 | 505 | if (dest == T_SHORT) return (BitsPerInt - BitsPerShort) | CONV_VMINFO_SIGN_FLAG; |
twisti@2204 | 506 | return 0; // case T_INT |
twisti@2204 | 507 | } |
twisti@2204 | 508 | // Shift values for unboxing a primitive. |
twisti@2204 | 509 | static int adapter_unbox_subword_vminfo(BasicType dest) { |
twisti@2204 | 510 | if (dest == T_BOOLEAN) return (BitsPerInt - BitsPerByte ); // implemented as 1 byte |
twisti@2204 | 511 | if (dest == T_CHAR) return (BitsPerInt - BitsPerShort); |
twisti@2204 | 512 | if (dest == T_BYTE) return (BitsPerInt - BitsPerByte ) | CONV_VMINFO_SIGN_FLAG; |
twisti@2204 | 513 | if (dest == T_SHORT) return (BitsPerInt - BitsPerShort) | CONV_VMINFO_SIGN_FLAG; |
jrose@1145 | 514 | return 0; // case T_INT |
jrose@1145 | 515 | } |
jrose@1145 | 516 | // Here is the transformation the i2i adapter must perform: |
jrose@1145 | 517 | static int truncate_subword_from_vminfo(jint value, int vminfo) { |
bdelsart@3142 | 518 | int shift = vminfo & ~CONV_VMINFO_SIGN_FLAG; |
bdelsart@3142 | 519 | jint tem = value << shift; |
jrose@1145 | 520 | if ((vminfo & CONV_VMINFO_SIGN_FLAG) != 0) { |
bdelsart@3142 | 521 | return (jint)tem >> shift; |
jrose@1145 | 522 | } else { |
bdelsart@3142 | 523 | return (juint)tem >> shift; |
jrose@1145 | 524 | } |
jrose@1145 | 525 | } |
jrose@1145 | 526 | |
jrose@1145 | 527 | static inline address from_compiled_entry(EntryKind ek); |
jrose@1145 | 528 | static inline address from_interpreted_entry(EntryKind ek); |
jrose@1145 | 529 | |
jrose@1145 | 530 | // helpers for decode_method. |
twisti@2806 | 531 | static methodOop decode_methodOop(methodOop m, int& decode_flags_result); |
twisti@2806 | 532 | static methodHandle decode_vmtarget(oop vmtarget, int vmindex, oop mtype, KlassHandle& receiver_limit_result, int& decode_flags_result); |
twisti@2806 | 533 | static methodHandle decode_MemberName(oop mname, KlassHandle& receiver_limit_result, int& decode_flags_result); |
twisti@2806 | 534 | static methodHandle decode_MethodHandle(oop mh, KlassHandle& receiver_limit_result, int& decode_flags_result); |
twisti@2806 | 535 | static methodHandle decode_DirectMethodHandle(oop mh, KlassHandle& receiver_limit_result, int& decode_flags_result); |
twisti@2806 | 536 | static methodHandle decode_BoundMethodHandle(oop mh, KlassHandle& receiver_limit_result, int& decode_flags_result); |
twisti@2806 | 537 | static methodHandle decode_AdapterMethodHandle(oop mh, KlassHandle& receiver_limit_result, int& decode_flags_result); |
jrose@1145 | 538 | |
jrose@1145 | 539 | // Find out how many stack slots an mh pushes or pops. |
jrose@1145 | 540 | // The result is *not* reported as a multiple of stack_move_unit(); |
jrose@1145 | 541 | // It is a signed net number of pushes (a difference in vmslots). |
jrose@1145 | 542 | // To compare with a stack_move value, first multiply by stack_move_unit(). |
jrose@1145 | 543 | static int decode_MethodHandle_stack_pushes(oop mh); |
jrose@1145 | 544 | |
jrose@1145 | 545 | public: |
jrose@1145 | 546 | // working with member names |
jrose@1145 | 547 | static void resolve_MemberName(Handle mname, TRAPS); // compute vmtarget/vmindex from name/type |
jrose@1145 | 548 | static void expand_MemberName(Handle mname, int suppress, TRAPS); // expand defc/name/type if missing |
jrose@1862 | 549 | static Handle new_MemberName(TRAPS); // must be followed by init_MemberName |
jrose@1145 | 550 | static void init_MemberName(oop mname_oop, oop target); // compute vmtarget/vmindex from target |
jrose@1862 | 551 | static void init_MemberName(oop mname_oop, methodOop m, bool do_dispatch = true); |
jrose@1145 | 552 | static void init_MemberName(oop mname_oop, klassOop field_holder, AccessFlags mods, int offset); |
coleenp@2497 | 553 | static int find_MemberNames(klassOop k, Symbol* name, Symbol* sig, |
jrose@1145 | 554 | int mflags, klassOop caller, |
jrose@1145 | 555 | int skip, objArrayOop results); |
jrose@1145 | 556 | // bit values for suppress argument to expand_MemberName: |
jrose@1145 | 557 | enum { _suppress_defc = 1, _suppress_name = 2, _suppress_type = 4 }; |
jrose@1145 | 558 | |
twisti@1734 | 559 | // Generate MethodHandles adapters. |
twisti@2436 | 560 | static void generate_adapters(); |
twisti@1734 | 561 | |
twisti@1734 | 562 | // Called from InterpreterGenerator and MethodHandlesAdapterGenerator. |
jrose@1145 | 563 | static address generate_method_handle_interpreter_entry(MacroAssembler* _masm); |
twisti@2436 | 564 | static void generate_method_handle_stub(MacroAssembler* _masm, EntryKind ek); |
jrose@1145 | 565 | |
jrose@1145 | 566 | // argument list parsing |
jrose@1145 | 567 | static int argument_slot(oop method_type, int arg); |
jrose@1145 | 568 | static int argument_slot_count(oop method_type) { return argument_slot(method_type, -1); } |
jrose@1145 | 569 | static int argument_slot_to_argnum(oop method_type, int argslot); |
jrose@1145 | 570 | |
jrose@1145 | 571 | // Runtime support |
jrose@1145 | 572 | enum { // bit-encoded flags from decode_method or decode_vmref |
jrose@1145 | 573 | _dmf_has_receiver = 0x01, // target method has leading reference argument |
jrose@1145 | 574 | _dmf_does_dispatch = 0x02, // method handle performs virtual or interface dispatch |
jrose@1145 | 575 | _dmf_from_interface = 0x04, // peforms interface dispatch |
jrose@1145 | 576 | _DMF_DIRECT_MASK = (_dmf_from_interface*2 - _dmf_has_receiver), |
jrose@1145 | 577 | _dmf_binds_method = 0x08, |
jrose@1145 | 578 | _dmf_binds_argument = 0x10, |
jrose@1145 | 579 | _DMF_BOUND_MASK = (_dmf_binds_argument*2 - _dmf_binds_method), |
jrose@1145 | 580 | _dmf_adapter_lsb = 0x20, |
jrose@1145 | 581 | _DMF_ADAPTER_MASK = (_dmf_adapter_lsb << CONV_OP_LIMIT) - _dmf_adapter_lsb |
jrose@1145 | 582 | }; |
twisti@2806 | 583 | static methodHandle decode_method(oop x, KlassHandle& receiver_limit_result, int& decode_flags_result); |
jrose@1145 | 584 | enum { |
jrose@1145 | 585 | // format of query to getConstant: |
jrose@1145 | 586 | GC_JVM_PUSH_LIMIT = 0, |
jrose@1474 | 587 | GC_JVM_STACK_MOVE_UNIT = 1, |
jrose@1862 | 588 | GC_CONV_OP_IMPLEMENTED_MASK = 2, |
never@2954 | 589 | GC_OP_ROT_ARGS_DOWN_LIMIT_BIAS = 3, |
never@3105 | 590 | GC_COUNT_GWT = 4, |
jrose@1145 | 591 | |
jrose@1145 | 592 | // format of result from getTarget / encode_target: |
jrose@1145 | 593 | ETF_HANDLE_OR_METHOD_NAME = 0, // all available data (immediate MH or method) |
jrose@1145 | 594 | ETF_DIRECT_HANDLE = 1, // ultimate method handle (will be a DMH, may be self) |
jrose@1145 | 595 | ETF_METHOD_NAME = 2, // ultimate method as MemberName |
never@2954 | 596 | ETF_REFLECT_METHOD = 3, // ultimate method as java.lang.reflect object (sans refClass) |
jrose@2982 | 597 | ETF_FORCE_DIRECT_HANDLE = 64, |
jrose@2982 | 598 | ETF_COMPILE_DIRECT_HANDLE = 65, |
never@2954 | 599 | |
never@2954 | 600 | // ad hoc constants |
never@2954 | 601 | OP_ROT_ARGS_DOWN_LIMIT_BIAS = -1 |
jrose@1145 | 602 | }; |
jrose@1145 | 603 | static int get_named_constant(int which, Handle name_box, TRAPS); |
jrose@1145 | 604 | static oop encode_target(Handle mh, int format, TRAPS); // report vmtarget (to Java code) |
jrose@1145 | 605 | static bool class_cast_needed(klassOop src, klassOop dst); |
jrose@1145 | 606 | |
jrose@1862 | 607 | static instanceKlassHandle resolve_instance_klass(oop java_mirror_oop, TRAPS); |
jrose@1862 | 608 | static instanceKlassHandle resolve_instance_klass(jclass java_mirror_jh, TRAPS) { |
jrose@1862 | 609 | return resolve_instance_klass(JNIHandles::resolve(java_mirror_jh), THREAD); |
jrose@1862 | 610 | } |
jrose@1862 | 611 | |
jrose@1145 | 612 | private: |
jrose@1145 | 613 | // These checkers operate on a pair of whole MethodTypes: |
jrose@1145 | 614 | static const char* check_method_type_change(oop src_mtype, int src_beg, int src_end, |
jrose@1145 | 615 | int insert_argnum, oop insert_type, |
jrose@1145 | 616 | int change_argnum, oop change_type, |
jrose@1145 | 617 | int delete_argnum, |
jrose@1474 | 618 | oop dst_mtype, int dst_beg, int dst_end, |
jrose@1474 | 619 | bool raw = false); |
jrose@1145 | 620 | static const char* check_method_type_insertion(oop src_mtype, |
jrose@1145 | 621 | int insert_argnum, oop insert_type, |
jrose@1145 | 622 | oop dst_mtype) { |
jrose@1145 | 623 | oop no_ref = NULL; |
jrose@1145 | 624 | return check_method_type_change(src_mtype, 0, -1, |
jrose@1145 | 625 | insert_argnum, insert_type, |
jrose@1145 | 626 | -1, no_ref, -1, dst_mtype, 0, -1); |
jrose@1145 | 627 | } |
jrose@1145 | 628 | static const char* check_method_type_conversion(oop src_mtype, |
jrose@1145 | 629 | int change_argnum, oop change_type, |
jrose@1145 | 630 | oop dst_mtype) { |
jrose@1145 | 631 | oop no_ref = NULL; |
jrose@1145 | 632 | return check_method_type_change(src_mtype, 0, -1, -1, no_ref, |
jrose@1145 | 633 | change_argnum, change_type, |
jrose@1145 | 634 | -1, dst_mtype, 0, -1); |
jrose@1145 | 635 | } |
jrose@1474 | 636 | static const char* check_method_type_passthrough(oop src_mtype, oop dst_mtype, bool raw) { |
jrose@1145 | 637 | oop no_ref = NULL; |
jrose@1145 | 638 | return check_method_type_change(src_mtype, 0, -1, |
jrose@1145 | 639 | -1, no_ref, -1, no_ref, -1, |
jrose@1474 | 640 | dst_mtype, 0, -1, raw); |
jrose@1145 | 641 | } |
jrose@1145 | 642 | |
jrose@1145 | 643 | // These checkers operate on pairs of argument or return types: |
jrose@1145 | 644 | static const char* check_argument_type_change(BasicType src_type, klassOop src_klass, |
jrose@1145 | 645 | BasicType dst_type, klassOop dst_klass, |
jrose@1474 | 646 | int argnum, bool raw = false); |
jrose@1145 | 647 | |
jrose@1145 | 648 | static const char* check_argument_type_change(oop src_type, oop dst_type, |
jrose@1474 | 649 | int argnum, bool raw = false) { |
jrose@1145 | 650 | klassOop src_klass = NULL, dst_klass = NULL; |
jrose@1145 | 651 | BasicType src_bt = java_lang_Class::as_BasicType(src_type, &src_klass); |
jrose@1145 | 652 | BasicType dst_bt = java_lang_Class::as_BasicType(dst_type, &dst_klass); |
jrose@1145 | 653 | return check_argument_type_change(src_bt, src_klass, |
jrose@1474 | 654 | dst_bt, dst_klass, argnum, raw); |
jrose@1145 | 655 | } |
jrose@1145 | 656 | |
jrose@1474 | 657 | static const char* check_return_type_change(oop src_type, oop dst_type, bool raw = false) { |
jrose@1474 | 658 | return check_argument_type_change(src_type, dst_type, -1, raw); |
jrose@1145 | 659 | } |
jrose@1145 | 660 | |
jrose@1145 | 661 | static const char* check_return_type_change(BasicType src_type, klassOop src_klass, |
jrose@1145 | 662 | BasicType dst_type, klassOop dst_klass) { |
jrose@1145 | 663 | return check_argument_type_change(src_type, src_klass, dst_type, dst_klass, -1); |
jrose@1145 | 664 | } |
jrose@1145 | 665 | |
jrose@1145 | 666 | static const char* check_method_receiver(methodOop m, klassOop passed_recv_type); |
jrose@1145 | 667 | |
jrose@1145 | 668 | // These verifiers can block, and will throw an error if the checking fails: |
jrose@1145 | 669 | static void verify_vmslots(Handle mh, TRAPS); |
jrose@1145 | 670 | static void verify_vmargslot(Handle mh, int argnum, int argslot, TRAPS); |
jrose@1145 | 671 | |
jrose@1145 | 672 | static void verify_method_type(methodHandle m, Handle mtype, |
jrose@1145 | 673 | bool has_bound_oop, |
jrose@1145 | 674 | KlassHandle bound_oop_type, |
jrose@1145 | 675 | TRAPS); |
jrose@1145 | 676 | |
jrose@1145 | 677 | static void verify_method_signature(methodHandle m, Handle mtype, |
jrose@1145 | 678 | int first_ptype_pos, |
jrose@1145 | 679 | KlassHandle insert_ptype, TRAPS); |
jrose@1145 | 680 | |
jrose@1145 | 681 | static void verify_DirectMethodHandle(Handle mh, methodHandle m, TRAPS); |
jrose@1145 | 682 | static void verify_BoundMethodHandle(Handle mh, Handle target, int argnum, |
jrose@1145 | 683 | bool direct_to_method, TRAPS); |
jrose@1145 | 684 | static void verify_BoundMethodHandle_with_receiver(Handle mh, methodHandle m, TRAPS); |
jrose@1145 | 685 | static void verify_AdapterMethodHandle(Handle mh, int argnum, TRAPS); |
jrose@1145 | 686 | |
jrose@1145 | 687 | public: |
jrose@1145 | 688 | |
jrose@1145 | 689 | // Fill in the fields of a DirectMethodHandle mh. (MH.type must be pre-filled.) |
jrose@1145 | 690 | static void init_DirectMethodHandle(Handle mh, methodHandle method, bool do_dispatch, TRAPS); |
jrose@1145 | 691 | |
jrose@1145 | 692 | // Fill in the fields of a BoundMethodHandle mh. (MH.type, BMH.argument must be pre-filled.) |
jrose@1145 | 693 | static void init_BoundMethodHandle(Handle mh, Handle target, int argnum, TRAPS); |
jrose@1145 | 694 | static void init_BoundMethodHandle_with_receiver(Handle mh, |
jrose@1145 | 695 | methodHandle original_m, |
jrose@1145 | 696 | KlassHandle receiver_limit, |
jrose@1145 | 697 | int decode_flags, |
jrose@1145 | 698 | TRAPS); |
jrose@1145 | 699 | |
jrose@1145 | 700 | // Fill in the fields of an AdapterMethodHandle mh. (MH.type must be pre-filled.) |
jrose@1145 | 701 | static void init_AdapterMethodHandle(Handle mh, Handle target, int argnum, TRAPS); |
never@2895 | 702 | static void ensure_vmlayout_field(Handle target, TRAPS); |
jrose@1145 | 703 | |
jrose@1145 | 704 | #ifdef ASSERT |
jrose@1145 | 705 | static bool spot_check_entry_names(); |
jrose@1145 | 706 | #endif |
jrose@1145 | 707 | |
jrose@1145 | 708 | private: |
jrose@1145 | 709 | static methodHandle dispatch_decoded_method(methodHandle m, |
jrose@1145 | 710 | KlassHandle receiver_limit, |
jrose@1145 | 711 | int decode_flags, |
jrose@1145 | 712 | KlassHandle receiver_klass, |
jrose@1145 | 713 | TRAPS); |
jrose@1145 | 714 | |
twisti@2903 | 715 | public: |
twisti@2903 | 716 | static bool is_float_fixed_reinterpretation_cast(BasicType src, BasicType dst); |
jrose@1145 | 717 | static bool same_basic_type_for_arguments(BasicType src, BasicType dst, |
jrose@1474 | 718 | bool raw = false, |
jrose@1145 | 719 | bool for_return = false); |
jrose@1474 | 720 | static bool same_basic_type_for_returns(BasicType src, BasicType dst, bool raw = false) { |
jrose@1474 | 721 | return same_basic_type_for_arguments(src, dst, raw, true); |
jrose@1145 | 722 | } |
jrose@1145 | 723 | |
never@2895 | 724 | static Symbol* convert_to_signature(oop type_str, bool polymorphic, TRAPS); |
never@2895 | 725 | |
never@2895 | 726 | #ifdef TARGET_ARCH_x86 |
never@2895 | 727 | # include "methodHandles_x86.hpp" |
never@2895 | 728 | #endif |
never@2895 | 729 | #ifdef TARGET_ARCH_sparc |
never@2950 | 730 | # include "methodHandles_sparc.hpp" |
never@2895 | 731 | #endif |
never@2895 | 732 | #ifdef TARGET_ARCH_zero |
never@2950 | 733 | # include "methodHandles_zero.hpp" |
never@2895 | 734 | #endif |
never@2895 | 735 | #ifdef TARGET_ARCH_arm |
bdelsart@2917 | 736 | # include "methodHandles_arm.hpp" |
never@2895 | 737 | #endif |
never@2895 | 738 | #ifdef TARGET_ARCH_ppc |
bdelsart@2917 | 739 | # include "methodHandles_ppc.hpp" |
never@2895 | 740 | #endif |
never@2895 | 741 | |
never@2895 | 742 | #ifdef TARGET_ARCH_NYI_6939861 |
never@2895 | 743 | // Here are some backward compatible declarations until the 6939861 ports are updated. |
never@2895 | 744 | #define _adapter_flyby (_EK_LIMIT + 10) |
never@2895 | 745 | #define _adapter_ricochet (_EK_LIMIT + 11) |
never@2895 | 746 | #define _adapter_opt_spread_1 _adapter_opt_spread_1_ref |
never@2895 | 747 | #define _adapter_opt_spread_more _adapter_opt_spread_ref |
never@2895 | 748 | enum { |
jrose@1145 | 749 | _INSERT_NO_MASK = -1, |
jrose@1145 | 750 | _INSERT_REF_MASK = 0, |
jrose@1145 | 751 | _INSERT_INT_MASK = 1, |
jrose@1145 | 752 | _INSERT_LONG_MASK = 3 |
jrose@1145 | 753 | }; |
never@2895 | 754 | static void get_ek_bound_mh_info(EntryKind ek, BasicType& arg_type, int& arg_mask, int& arg_slots) { |
never@2895 | 755 | arg_type = ek_bound_mh_arg_type(ek); |
never@2895 | 756 | arg_mask = 0; |
never@2895 | 757 | arg_slots = type2size[arg_type];; |
never@2895 | 758 | } |
never@2895 | 759 | static void get_ek_adapter_opt_swap_rot_info(EntryKind ek, int& swap_bytes, int& rotate) { |
never@2895 | 760 | int swap_slots = ek_adapter_opt_swap_slots(ek); |
never@2895 | 761 | rotate = ek_adapter_opt_swap_mode(ek); |
never@2895 | 762 | swap_bytes = swap_slots * Interpreter::stackElementSize; |
never@2895 | 763 | } |
never@2895 | 764 | static int get_ek_adapter_opt_spread_info(EntryKind ek) { |
never@2895 | 765 | return ek_adapter_opt_spread_count(ek); |
never@2895 | 766 | } |
never@2895 | 767 | |
jrose@1145 | 768 | static void insert_arg_slots(MacroAssembler* _masm, |
jrose@1145 | 769 | RegisterOrConstant arg_slots, |
jrose@1145 | 770 | int arg_mask, |
twisti@1739 | 771 | Register argslot_reg, |
twisti@1858 | 772 | Register temp_reg, Register temp2_reg, Register temp3_reg = noreg); |
jrose@1145 | 773 | |
jrose@1145 | 774 | static void remove_arg_slots(MacroAssembler* _masm, |
jrose@1145 | 775 | RegisterOrConstant arg_slots, |
twisti@1739 | 776 | Register argslot_reg, |
twisti@1858 | 777 | Register temp_reg, Register temp2_reg, Register temp3_reg = noreg); |
jrose@2148 | 778 | |
jrose@2148 | 779 | static void trace_method_handle(MacroAssembler* _masm, const char* adaptername) PRODUCT_RETURN; |
never@2895 | 780 | #endif //TARGET_ARCH_NYI_6939861 |
jrose@1145 | 781 | }; |
jrose@1145 | 782 | |
jrose@1145 | 783 | |
jrose@2639 | 784 | // Access methods for the "entry" field of a java.lang.invoke.MethodHandle. |
jrose@1145 | 785 | // The field is primarily a jump target for compiled calls. |
jrose@1145 | 786 | // However, we squirrel away some nice pointers for other uses, |
jrose@1145 | 787 | // just before the jump target. |
jrose@1145 | 788 | // Aspects of a method handle entry: |
jrose@1145 | 789 | // - from_compiled_entry - stub used when compiled code calls the MH |
jrose@1145 | 790 | // - from_interpreted_entry - stub used when the interpreter calls the MH |
jrose@1145 | 791 | // - type_checking_entry - stub for runtime casting between MHForm siblings (NYI) |
jrose@1145 | 792 | class MethodHandleEntry { |
jrose@1145 | 793 | public: |
jrose@1145 | 794 | class Data { |
jrose@1145 | 795 | friend class MethodHandleEntry; |
jrose@1145 | 796 | size_t _total_size; // size including Data and code stub |
jrose@1145 | 797 | MethodHandleEntry* _type_checking_entry; |
jrose@1145 | 798 | address _from_interpreted_entry; |
jrose@1145 | 799 | MethodHandleEntry* method_entry() { return (MethodHandleEntry*)(this + 1); } |
jrose@1145 | 800 | }; |
jrose@1145 | 801 | |
jrose@1145 | 802 | Data* data() { return (Data*)this - 1; } |
jrose@1145 | 803 | |
jrose@1145 | 804 | address start_address() { return (address) data(); } |
jrose@1145 | 805 | address end_address() { return start_address() + data()->_total_size; } |
jrose@1145 | 806 | |
jrose@1145 | 807 | address from_compiled_entry() { return (address) this; } |
jrose@1145 | 808 | |
jrose@1145 | 809 | address from_interpreted_entry() { return data()->_from_interpreted_entry; } |
jrose@1145 | 810 | void set_from_interpreted_entry(address e) { data()->_from_interpreted_entry = e; } |
jrose@1145 | 811 | |
jrose@1145 | 812 | MethodHandleEntry* type_checking_entry() { return data()->_type_checking_entry; } |
jrose@1145 | 813 | void set_type_checking_entry(MethodHandleEntry* e) { data()->_type_checking_entry = e; } |
jrose@1145 | 814 | |
jrose@1145 | 815 | void set_end_address(address end_addr) { |
jrose@1145 | 816 | size_t total_size = end_addr - start_address(); |
jrose@1145 | 817 | assert(total_size > 0 && total_size < 0x1000, "reasonable end address"); |
jrose@1145 | 818 | data()->_total_size = total_size; |
jrose@1145 | 819 | } |
jrose@1145 | 820 | |
jrose@1145 | 821 | // Compiler support: |
jrose@1145 | 822 | static int from_interpreted_entry_offset_in_bytes() { |
jrose@1145 | 823 | return (int)( offset_of(Data, _from_interpreted_entry) - sizeof(Data) ); |
jrose@1145 | 824 | } |
jrose@1145 | 825 | static int type_checking_entry_offset_in_bytes() { |
jrose@1145 | 826 | return (int)( offset_of(Data, _from_interpreted_entry) - sizeof(Data) ); |
jrose@1145 | 827 | } |
jrose@1145 | 828 | |
jrose@1145 | 829 | static address start_compiled_entry(MacroAssembler* _masm, |
jrose@1145 | 830 | address interpreted_entry = NULL); |
jrose@1145 | 831 | static MethodHandleEntry* finish_compiled_entry(MacroAssembler* masm, address start_addr); |
jrose@1145 | 832 | }; |
jrose@1145 | 833 | |
jrose@1145 | 834 | address MethodHandles::from_compiled_entry(EntryKind ek) { return entry(ek)->from_compiled_entry(); } |
jrose@1145 | 835 | address MethodHandles::from_interpreted_entry(EntryKind ek) { return entry(ek)->from_interpreted_entry(); } |
twisti@1734 | 836 | |
twisti@1734 | 837 | |
twisti@1734 | 838 | //------------------------------------------------------------------------------ |
twisti@1734 | 839 | // MethodHandlesAdapterGenerator |
twisti@1734 | 840 | // |
twisti@1734 | 841 | class MethodHandlesAdapterGenerator : public StubCodeGenerator { |
twisti@1734 | 842 | public: |
never@2954 | 843 | MethodHandlesAdapterGenerator(CodeBuffer* code) : StubCodeGenerator(code, PrintMethodHandleStubs) {} |
twisti@1734 | 844 | |
twisti@2436 | 845 | void generate(); |
twisti@1734 | 846 | }; |
stefank@2314 | 847 | |
stefank@2314 | 848 | #endif // SHARE_VM_PRIMS_METHODHANDLES_HPP |