Fri, 30 Aug 2013 09:50:49 +0100
Merge
kamg@2232 | 1 | /* |
kamg@3992 | 2 | * Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved. |
kamg@2232 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
kamg@2232 | 4 | * |
kamg@2232 | 5 | * This code is free software; you can redistribute it and/or modify it |
kamg@2232 | 6 | * under the terms of the GNU General Public License version 2 only, as |
kamg@2232 | 7 | * published by the Free Software Foundation. |
kamg@2232 | 8 | * |
kamg@2232 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
kamg@2232 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
kamg@2232 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
kamg@2232 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
kamg@2232 | 13 | * accompanied this code). |
kamg@2232 | 14 | * |
kamg@2232 | 15 | * You should have received a copy of the GNU General Public License version |
kamg@2232 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
kamg@2232 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
kamg@2232 | 18 | * |
kamg@2232 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
kamg@2232 | 20 | * or visit www.oracle.com if you need additional information or have any |
kamg@2232 | 21 | * questions. |
kamg@2232 | 22 | * |
kamg@2232 | 23 | */ |
kamg@2232 | 24 | |
stefank@2314 | 25 | #ifndef SHARE_VM_CLASSFILE_STACKMAPTABLEFORMAT_HPP |
stefank@2314 | 26 | #define SHARE_VM_CLASSFILE_STACKMAPTABLEFORMAT_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "classfile/verificationType.hpp" |
stefank@2314 | 29 | |
kamg@2232 | 30 | // These classes represent the stack-map substructures described in the JVMS |
kamg@2232 | 31 | // (hence the non-conforming naming scheme). |
kamg@2232 | 32 | |
kamg@2232 | 33 | // These classes work with the types in their compressed form in-place (as they |
kamg@2232 | 34 | // would appear in the classfile). No virtual methods or fields allowed. |
kamg@2232 | 35 | |
kamg@2232 | 36 | class verification_type_info { |
kamg@2232 | 37 | private: |
kamg@2232 | 38 | // u1 tag |
kamg@2232 | 39 | // u2 cpool_index || u2 bci (for ITEM_Object & ITEM_Uninitailized only) |
kamg@2232 | 40 | |
kamg@2232 | 41 | address tag_addr() const { return (address)this; } |
kamg@2232 | 42 | address cpool_index_addr() const { return tag_addr() + sizeof(u1); } |
kamg@2232 | 43 | address bci_addr() const { return cpool_index_addr(); } |
kamg@2232 | 44 | |
kamg@2232 | 45 | protected: |
kamg@2232 | 46 | // No constructors - should be 'private', but GCC issues a warning if it is |
kamg@2232 | 47 | verification_type_info() {} |
kamg@2232 | 48 | verification_type_info(const verification_type_info&) {} |
kamg@2232 | 49 | |
kamg@2232 | 50 | public: |
kamg@2232 | 51 | |
kamg@2232 | 52 | static verification_type_info* at(address addr) { |
kamg@2232 | 53 | return (verification_type_info*)addr; |
kamg@2232 | 54 | } |
kamg@2232 | 55 | |
kamg@2232 | 56 | static verification_type_info* create_at(address addr, u1 tag) { |
kamg@2232 | 57 | verification_type_info* vti = (verification_type_info*)addr; |
kamg@2232 | 58 | vti->set_tag(tag); |
kamg@2232 | 59 | return vti; |
kamg@2232 | 60 | } |
kamg@2232 | 61 | |
kamg@2232 | 62 | static verification_type_info* create_object_at(address addr, u2 cp_idx) { |
kamg@2232 | 63 | verification_type_info* vti = (verification_type_info*)addr; |
kamg@2232 | 64 | vti->set_tag(ITEM_Object); |
kamg@2232 | 65 | vti->set_cpool_index(cp_idx); |
kamg@2232 | 66 | return vti; |
kamg@2232 | 67 | } |
kamg@2232 | 68 | |
kamg@2232 | 69 | static verification_type_info* create_uninit_at(address addr, u2 bci) { |
kamg@2232 | 70 | verification_type_info* vti = (verification_type_info*)addr; |
kamg@2232 | 71 | vti->set_tag(ITEM_Uninitialized); |
kamg@2232 | 72 | vti->set_bci(bci); |
kamg@2232 | 73 | return vti; |
kamg@2232 | 74 | } |
kamg@2232 | 75 | |
kamg@2232 | 76 | static size_t calculate_size(u1 tag) { |
kamg@2232 | 77 | if (tag == ITEM_Object || tag == ITEM_Uninitialized) { |
kamg@2232 | 78 | return sizeof(u1) + sizeof(u2); |
kamg@2232 | 79 | } else { |
kamg@2232 | 80 | return sizeof(u1); |
kamg@2232 | 81 | } |
kamg@2232 | 82 | } |
kamg@2232 | 83 | |
kamg@2232 | 84 | static size_t max_size() { return sizeof(u1) + sizeof(u2); } |
kamg@2232 | 85 | |
kamg@2232 | 86 | u1 tag() const { return *(u1*)tag_addr(); } |
kamg@2232 | 87 | void set_tag(u1 tag) { *((u1*)tag_addr()) = tag; } |
kamg@2232 | 88 | |
kamg@2232 | 89 | bool is_object() const { return tag() == ITEM_Object; } |
kamg@2232 | 90 | bool is_uninitialized() const { return tag() == ITEM_Uninitialized; } |
kamg@2232 | 91 | |
kamg@2232 | 92 | u2 cpool_index() const { |
kamg@2232 | 93 | assert(is_object(), "This type has no cp_index"); |
kamg@2232 | 94 | return Bytes::get_Java_u2(cpool_index_addr()); |
kamg@2232 | 95 | } |
kamg@2232 | 96 | void set_cpool_index(u2 idx) { |
kamg@2232 | 97 | assert(is_object(), "This type has no cp_index"); |
kamg@2232 | 98 | Bytes::put_Java_u2(cpool_index_addr(), idx); |
kamg@2232 | 99 | } |
kamg@2232 | 100 | |
kamg@2232 | 101 | u2 bci() const { |
kamg@2232 | 102 | assert(is_uninitialized(), "This type has no bci"); |
kamg@2232 | 103 | return Bytes::get_Java_u2(bci_addr()); |
kamg@2232 | 104 | } |
kamg@2232 | 105 | |
kamg@2232 | 106 | void set_bci(u2 bci) { |
kamg@2232 | 107 | assert(is_uninitialized(), "This type has no bci"); |
kamg@2232 | 108 | Bytes::put_Java_u2(bci_addr(), bci); |
kamg@2232 | 109 | } |
kamg@2232 | 110 | |
kamg@2232 | 111 | void copy_from(verification_type_info* from) { |
kamg@2232 | 112 | set_tag(from->tag()); |
kamg@2232 | 113 | if (from->is_object()) { |
kamg@2232 | 114 | set_cpool_index(from->cpool_index()); |
kamg@2232 | 115 | } else if (from->is_uninitialized()) { |
kamg@2232 | 116 | set_bci(from->bci()); |
kamg@2232 | 117 | } |
kamg@2232 | 118 | } |
kamg@2232 | 119 | |
kamg@2232 | 120 | size_t size() const { |
kamg@2232 | 121 | return calculate_size(tag()); |
kamg@2232 | 122 | } |
kamg@2232 | 123 | |
kamg@2232 | 124 | verification_type_info* next() { |
kamg@2232 | 125 | return (verification_type_info*)((address)this + size()); |
kamg@2232 | 126 | } |
kamg@2232 | 127 | |
kamg@2232 | 128 | // This method is used when reading unverified data in order to ensure |
kamg@2232 | 129 | // that we don't read past a particular memory limit. It returns false |
kamg@2232 | 130 | // if any part of the data structure is outside the specified memory bounds. |
kamg@2232 | 131 | bool verify(address start, address end) { |
kamg@2232 | 132 | return ((address)this >= start && |
kamg@2232 | 133 | (address)this < end && |
kamg@2232 | 134 | (bci_addr() + sizeof(u2) <= end || |
kamg@2232 | 135 | !is_object() && !is_uninitialized())); |
kamg@2232 | 136 | } |
kamg@2232 | 137 | |
kamg@2232 | 138 | void print_on(outputStream* st) { |
kamg@2232 | 139 | switch (tag()) { |
kamg@2232 | 140 | case ITEM_Top: st->print("Top"); break; |
kamg@2232 | 141 | case ITEM_Integer: st->print("Integer"); break; |
kamg@2232 | 142 | case ITEM_Float: st->print("Float"); break; |
kamg@2232 | 143 | case ITEM_Double: st->print("Double"); break; |
kamg@2232 | 144 | case ITEM_Long: st->print("Long"); break; |
kamg@2232 | 145 | case ITEM_Null: st->print("Null"); break; |
kamg@2232 | 146 | case ITEM_UninitializedThis: |
kamg@2232 | 147 | st->print("UninitializedThis"); break; |
kamg@2232 | 148 | case ITEM_Uninitialized: |
kamg@2232 | 149 | st->print("Uninitialized[#%d]", bci()); break; |
kamg@2232 | 150 | case ITEM_Object: |
kamg@2232 | 151 | st->print("Object[#%d]", cpool_index()); break; |
kamg@2232 | 152 | default: |
kamg@2232 | 153 | assert(false, "Bad verification_type_info"); |
kamg@2232 | 154 | } |
kamg@2232 | 155 | } |
kamg@2232 | 156 | }; |
kamg@2232 | 157 | |
kamg@2232 | 158 | #define FOR_EACH_STACKMAP_FRAME_TYPE(macro, arg1, arg2) \ |
kamg@2232 | 159 | macro(same_frame, arg1, arg2) \ |
kamg@2232 | 160 | macro(same_frame_extended, arg1, arg2) \ |
kamg@3992 | 161 | macro(same_locals_1_stack_item_frame, arg1, arg2) \ |
kamg@3992 | 162 | macro(same_locals_1_stack_item_extended, arg1, arg2) \ |
kamg@2232 | 163 | macro(chop_frame, arg1, arg2) \ |
kamg@2232 | 164 | macro(append_frame, arg1, arg2) \ |
kamg@2232 | 165 | macro(full_frame, arg1, arg2) |
kamg@2232 | 166 | |
kamg@2232 | 167 | #define SM_FORWARD_DECL(type, arg1, arg2) class type; |
kamg@2232 | 168 | FOR_EACH_STACKMAP_FRAME_TYPE(SM_FORWARD_DECL, x, x) |
kamg@2232 | 169 | #undef SM_FORWARD_DECL |
kamg@2232 | 170 | |
kamg@2232 | 171 | class stack_map_frame { |
kamg@2232 | 172 | protected: |
kamg@2232 | 173 | address frame_type_addr() const { return (address)this; } |
kamg@2232 | 174 | |
kamg@2232 | 175 | // No constructors - should be 'private', but GCC issues a warning if it is |
kamg@2232 | 176 | stack_map_frame() {} |
kamg@2232 | 177 | stack_map_frame(const stack_map_frame&) {} |
kamg@2232 | 178 | |
kamg@2232 | 179 | public: |
kamg@2232 | 180 | |
kamg@2232 | 181 | static stack_map_frame* at(address addr) { |
kamg@2232 | 182 | return (stack_map_frame*)addr; |
kamg@2232 | 183 | } |
kamg@2232 | 184 | |
kamg@2232 | 185 | stack_map_frame* next() const { |
kamg@2232 | 186 | return at((address)this + size()); |
kamg@2232 | 187 | } |
kamg@2232 | 188 | |
kamg@2232 | 189 | u1 frame_type() const { return *(u1*)frame_type_addr(); } |
kamg@2232 | 190 | void set_frame_type(u1 type) { *((u1*)frame_type_addr()) = type; } |
kamg@2232 | 191 | |
kamg@2232 | 192 | // pseudo-virtual methods |
kamg@2232 | 193 | inline size_t size() const; |
kamg@2232 | 194 | inline int offset_delta() const; |
kamg@2232 | 195 | inline void set_offset_delta(int offset_delta); |
kamg@2232 | 196 | inline int number_of_types() const; // number of types contained in the frame |
kamg@2232 | 197 | inline verification_type_info* types() const; // pointer to first type |
kamg@2232 | 198 | inline bool is_valid_offset(int offset_delta) const; |
kamg@2232 | 199 | |
kamg@2232 | 200 | // This method must be used when reading unverified data in order to ensure |
kamg@2232 | 201 | // that we don't read past a particular memory limit. It returns false |
kamg@2232 | 202 | // if any part of the data structure is outside the specified memory bounds. |
kamg@2232 | 203 | inline bool verify(address start, address end) const; |
kamg@3992 | 204 | |
kamg@3992 | 205 | inline void print_on(outputStream* st, int current_offset) const; |
kamg@2232 | 206 | |
kamg@2232 | 207 | // Create as_xxx and is_xxx methods for the subtypes |
kamg@2232 | 208 | #define FRAME_TYPE_DECL(stackmap_frame_type, arg1, arg2) \ |
kamg@2232 | 209 | inline stackmap_frame_type* as_##stackmap_frame_type() const; \ |
kamg@2232 | 210 | bool is_##stackmap_frame_type() { \ |
kamg@2232 | 211 | return as_##stackmap_frame_type() != NULL; \ |
kamg@2232 | 212 | } |
kamg@2232 | 213 | |
kamg@2232 | 214 | FOR_EACH_STACKMAP_FRAME_TYPE(FRAME_TYPE_DECL, x, x) |
kamg@2232 | 215 | #undef FRAME_TYPE_DECL |
kamg@2232 | 216 | }; |
kamg@2232 | 217 | |
kamg@2232 | 218 | class same_frame : public stack_map_frame { |
kamg@2232 | 219 | private: |
kamg@2232 | 220 | static int frame_type_to_offset_delta(u1 frame_type) { |
kamg@2232 | 221 | return frame_type + 1; } |
kamg@2232 | 222 | static u1 offset_delta_to_frame_type(int offset_delta) { |
kamg@2232 | 223 | return (u1)(offset_delta - 1); } |
kamg@2232 | 224 | |
kamg@2232 | 225 | public: |
kamg@2232 | 226 | |
kamg@2232 | 227 | static bool is_frame_type(u1 tag) { |
kamg@2232 | 228 | return tag < 64; |
kamg@2232 | 229 | } |
kamg@2232 | 230 | |
kamg@2232 | 231 | static same_frame* at(address addr) { |
kamg@2232 | 232 | assert(is_frame_type(*addr), "Wrong frame id"); |
kamg@2232 | 233 | return (same_frame*)addr; |
kamg@2232 | 234 | } |
kamg@2232 | 235 | |
kamg@2232 | 236 | static same_frame* create_at(address addr, int offset_delta) { |
kamg@2232 | 237 | same_frame* sm = (same_frame*)addr; |
kamg@2232 | 238 | sm->set_offset_delta(offset_delta); |
kamg@2232 | 239 | return sm; |
kamg@2232 | 240 | } |
kamg@2232 | 241 | |
kamg@2232 | 242 | static size_t calculate_size() { return sizeof(u1); } |
kamg@2232 | 243 | |
kamg@2232 | 244 | size_t size() const { return calculate_size(); } |
kamg@2232 | 245 | int offset_delta() const { return frame_type_to_offset_delta(frame_type()); } |
kamg@2232 | 246 | |
kamg@2232 | 247 | void set_offset_delta(int offset_delta) { |
kamg@2232 | 248 | assert(offset_delta <= 64, "Offset too large for same_frame"); |
kamg@2232 | 249 | set_frame_type(offset_delta_to_frame_type(offset_delta)); |
kamg@2232 | 250 | } |
kamg@2232 | 251 | |
kamg@2232 | 252 | int number_of_types() const { return 0; } |
kamg@2232 | 253 | verification_type_info* types() const { return NULL; } |
kamg@2232 | 254 | |
kamg@2232 | 255 | bool is_valid_offset(int offset_delta) const { |
kamg@2232 | 256 | return is_frame_type(offset_delta_to_frame_type(offset_delta)); |
kamg@2232 | 257 | } |
kamg@2232 | 258 | |
kamg@2232 | 259 | bool verify_subtype(address start, address end) const { |
kamg@2232 | 260 | return true; |
kamg@2232 | 261 | } |
kamg@2232 | 262 | |
kamg@3992 | 263 | void print_on(outputStream* st, int current_offset = -1) const { |
kamg@3992 | 264 | st->print("same_frame(@%d)", offset_delta() + current_offset); |
kamg@2232 | 265 | } |
kamg@2232 | 266 | }; |
kamg@2232 | 267 | |
kamg@2232 | 268 | class same_frame_extended : public stack_map_frame { |
kamg@2232 | 269 | private: |
kamg@2232 | 270 | enum { _frame_id = 251 }; |
kamg@2232 | 271 | address offset_delta_addr() const { return frame_type_addr() + sizeof(u1); } |
kamg@2232 | 272 | |
kamg@2232 | 273 | public: |
kamg@2232 | 274 | static bool is_frame_type(u1 tag) { |
kamg@2232 | 275 | return tag == _frame_id; |
kamg@2232 | 276 | } |
kamg@2232 | 277 | |
kamg@2232 | 278 | static same_frame_extended* at(address addr) { |
kamg@2232 | 279 | assert(is_frame_type(*addr), "Wrong frame type"); |
kamg@2232 | 280 | return (same_frame_extended*)addr; |
kamg@2232 | 281 | } |
kamg@2232 | 282 | |
kamg@2232 | 283 | static same_frame_extended* create_at(address addr, u2 offset_delta) { |
kamg@2232 | 284 | same_frame_extended* sm = (same_frame_extended*)addr; |
kamg@2232 | 285 | sm->set_frame_type(_frame_id); |
kamg@2232 | 286 | sm->set_offset_delta(offset_delta); |
kamg@2232 | 287 | return sm; |
kamg@2232 | 288 | } |
kamg@2232 | 289 | |
kamg@2232 | 290 | static size_t calculate_size() { return sizeof(u1) + sizeof(u2); } |
kamg@2232 | 291 | |
kamg@2232 | 292 | size_t size() const { return calculate_size(); } |
kamg@2232 | 293 | int offset_delta() const { |
kamg@2232 | 294 | return Bytes::get_Java_u2(offset_delta_addr()) + 1; |
kamg@2232 | 295 | } |
kamg@2232 | 296 | |
kamg@2232 | 297 | void set_offset_delta(int offset_delta) { |
kamg@2232 | 298 | Bytes::put_Java_u2(offset_delta_addr(), offset_delta - 1); |
kamg@2232 | 299 | } |
kamg@2232 | 300 | |
kamg@2232 | 301 | int number_of_types() const { return 0; } |
kamg@2232 | 302 | verification_type_info* types() const { return NULL; } |
kamg@2232 | 303 | bool is_valid_offset(int offset) const { return true; } |
kamg@2232 | 304 | |
kamg@2232 | 305 | bool verify_subtype(address start, address end) const { |
kamg@2232 | 306 | return frame_type_addr() + size() <= end; |
kamg@2232 | 307 | } |
kamg@2232 | 308 | |
kamg@3992 | 309 | void print_on(outputStream* st, int current_offset = -1) const { |
kamg@3992 | 310 | st->print("same_frame_extended(@%d)", offset_delta() + current_offset); |
kamg@2232 | 311 | } |
kamg@2232 | 312 | }; |
kamg@2232 | 313 | |
kamg@3992 | 314 | class same_locals_1_stack_item_frame : public stack_map_frame { |
kamg@2232 | 315 | private: |
kamg@2232 | 316 | address type_addr() const { return frame_type_addr() + sizeof(u1); } |
kamg@2232 | 317 | |
kamg@2232 | 318 | static int frame_type_to_offset_delta(u1 frame_type) { |
kamg@2232 | 319 | return frame_type - 63; } |
kamg@2232 | 320 | static u1 offset_delta_to_frame_type(int offset_delta) { |
kamg@2232 | 321 | return (u1)(offset_delta + 63); } |
kamg@2232 | 322 | |
kamg@2232 | 323 | public: |
kamg@2232 | 324 | static bool is_frame_type(u1 tag) { |
kamg@2232 | 325 | return tag >= 64 && tag < 128; |
kamg@2232 | 326 | } |
kamg@2232 | 327 | |
kamg@3992 | 328 | static same_locals_1_stack_item_frame* at(address addr) { |
kamg@2232 | 329 | assert(is_frame_type(*addr), "Wrong frame id"); |
kamg@3992 | 330 | return (same_locals_1_stack_item_frame*)addr; |
kamg@2232 | 331 | } |
kamg@2232 | 332 | |
kamg@3992 | 333 | static same_locals_1_stack_item_frame* create_at( |
kamg@2232 | 334 | address addr, int offset_delta, verification_type_info* vti) { |
kamg@3992 | 335 | same_locals_1_stack_item_frame* sm = (same_locals_1_stack_item_frame*)addr; |
kamg@2232 | 336 | sm->set_offset_delta(offset_delta); |
kamg@2232 | 337 | if (vti != NULL) { |
kamg@2232 | 338 | sm->set_type(vti); |
kamg@2232 | 339 | } |
kamg@2232 | 340 | return sm; |
kamg@2232 | 341 | } |
kamg@2232 | 342 | |
kamg@2232 | 343 | static size_t calculate_size(verification_type_info* vti) { |
kamg@2232 | 344 | return sizeof(u1) + vti->size(); |
kamg@2232 | 345 | } |
kamg@2232 | 346 | |
kamg@2232 | 347 | static size_t max_size() { |
kamg@2232 | 348 | return sizeof(u1) + verification_type_info::max_size(); |
kamg@2232 | 349 | } |
kamg@2232 | 350 | |
kamg@2232 | 351 | size_t size() const { return calculate_size(types()); } |
kamg@2232 | 352 | int offset_delta() const { return frame_type_to_offset_delta(frame_type()); } |
kamg@2232 | 353 | |
kamg@2232 | 354 | void set_offset_delta(int offset_delta) { |
kamg@2232 | 355 | assert(offset_delta > 0 && offset_delta <= 64, |
kamg@2232 | 356 | "Offset too large for this frame type"); |
kamg@2232 | 357 | set_frame_type(offset_delta_to_frame_type(offset_delta)); |
kamg@2232 | 358 | } |
kamg@2232 | 359 | |
kamg@2232 | 360 | void set_type(verification_type_info* vti) { |
kamg@2232 | 361 | verification_type_info* cur = types(); |
kamg@2232 | 362 | cur->copy_from(vti); |
kamg@2232 | 363 | } |
kamg@2232 | 364 | |
kamg@2232 | 365 | int number_of_types() const { return 1; } |
kamg@2232 | 366 | verification_type_info* types() const { |
kamg@2232 | 367 | return verification_type_info::at(type_addr()); |
kamg@2232 | 368 | } |
kamg@2232 | 369 | |
kamg@2232 | 370 | bool is_valid_offset(int offset_delta) const { |
kamg@2232 | 371 | return is_frame_type(offset_delta_to_frame_type(offset_delta)); |
kamg@2232 | 372 | } |
kamg@2232 | 373 | |
kamg@2232 | 374 | bool verify_subtype(address start, address end) const { |
kamg@2232 | 375 | return types()->verify(start, end); |
kamg@2232 | 376 | } |
kamg@2232 | 377 | |
kamg@3992 | 378 | void print_on(outputStream* st, int current_offset = -1) const { |
kamg@3992 | 379 | st->print("same_locals_1_stack_item_frame(@%d,", |
kamg@3992 | 380 | offset_delta() + current_offset); |
kamg@2232 | 381 | types()->print_on(st); |
kamg@2232 | 382 | st->print(")"); |
kamg@2232 | 383 | } |
kamg@2232 | 384 | }; |
kamg@2232 | 385 | |
kamg@3992 | 386 | class same_locals_1_stack_item_extended : public stack_map_frame { |
kamg@2232 | 387 | private: |
kamg@2232 | 388 | address offset_delta_addr() const { return frame_type_addr() + sizeof(u1); } |
kamg@2232 | 389 | address type_addr() const { return offset_delta_addr() + sizeof(u2); } |
kamg@2232 | 390 | |
kamg@2232 | 391 | enum { _frame_id = 247 }; |
kamg@2232 | 392 | |
kamg@2232 | 393 | public: |
kamg@2232 | 394 | static bool is_frame_type(u1 tag) { |
kamg@2232 | 395 | return tag == _frame_id; |
kamg@2232 | 396 | } |
kamg@2232 | 397 | |
kamg@3992 | 398 | static same_locals_1_stack_item_extended* at(address addr) { |
kamg@2232 | 399 | assert(is_frame_type(*addr), "Wrong frame id"); |
kamg@3992 | 400 | return (same_locals_1_stack_item_extended*)addr; |
kamg@2232 | 401 | } |
kamg@2232 | 402 | |
kamg@3992 | 403 | static same_locals_1_stack_item_extended* create_at( |
kamg@2232 | 404 | address addr, int offset_delta, verification_type_info* vti) { |
kamg@3992 | 405 | same_locals_1_stack_item_extended* sm = |
kamg@3992 | 406 | (same_locals_1_stack_item_extended*)addr; |
kamg@2232 | 407 | sm->set_frame_type(_frame_id); |
kamg@2232 | 408 | sm->set_offset_delta(offset_delta); |
kamg@2232 | 409 | if (vti != NULL) { |
kamg@2232 | 410 | sm->set_type(vti); |
kamg@2232 | 411 | } |
kamg@2232 | 412 | return sm; |
kamg@2232 | 413 | } |
kamg@2232 | 414 | |
kamg@2232 | 415 | static size_t calculate_size(verification_type_info* vti) { |
kamg@2232 | 416 | return sizeof(u1) + sizeof(u2) + vti->size(); |
kamg@2232 | 417 | } |
kamg@2232 | 418 | |
kamg@2232 | 419 | size_t size() const { return calculate_size(types()); } |
kamg@2232 | 420 | int offset_delta() const { |
kamg@2232 | 421 | return Bytes::get_Java_u2(offset_delta_addr()) + 1; |
kamg@2232 | 422 | } |
kamg@2232 | 423 | |
kamg@2232 | 424 | void set_offset_delta(int offset_delta) { |
kamg@2232 | 425 | Bytes::put_Java_u2(offset_delta_addr(), offset_delta - 1); |
kamg@2232 | 426 | } |
kamg@2232 | 427 | |
kamg@2232 | 428 | void set_type(verification_type_info* vti) { |
kamg@2232 | 429 | verification_type_info* cur = types(); |
kamg@2232 | 430 | cur->copy_from(vti); |
kamg@2232 | 431 | } |
kamg@2232 | 432 | |
kamg@2232 | 433 | int number_of_types() const { return 1; } |
kamg@2232 | 434 | verification_type_info* types() const { |
kamg@2232 | 435 | return verification_type_info::at(type_addr()); |
kamg@2232 | 436 | } |
kamg@2232 | 437 | bool is_valid_offset(int offset) { return true; } |
kamg@2232 | 438 | |
kamg@2232 | 439 | bool verify_subtype(address start, address end) const { |
kamg@2232 | 440 | return type_addr() < end && types()->verify(start, end); |
kamg@2232 | 441 | } |
kamg@2232 | 442 | |
kamg@3992 | 443 | void print_on(outputStream* st, int current_offset = -1) const { |
kamg@3992 | 444 | st->print("same_locals_1_stack_item_extended(@%d,", |
kamg@3992 | 445 | offset_delta() + current_offset); |
kamg@2232 | 446 | types()->print_on(st); |
kamg@2232 | 447 | st->print(")"); |
kamg@2232 | 448 | } |
kamg@2232 | 449 | }; |
kamg@2232 | 450 | |
kamg@2232 | 451 | class chop_frame : public stack_map_frame { |
kamg@2232 | 452 | private: |
kamg@2232 | 453 | address offset_delta_addr() const { return frame_type_addr() + sizeof(u1); } |
kamg@2232 | 454 | |
kamg@2232 | 455 | static int frame_type_to_chops(u1 frame_type) { |
kamg@2232 | 456 | int chop = 251 - frame_type; |
kamg@2232 | 457 | return chop; |
kamg@2232 | 458 | } |
kamg@2232 | 459 | |
kamg@2232 | 460 | static u1 chops_to_frame_type(int chop) { |
kamg@2232 | 461 | return 251 - chop; |
kamg@2232 | 462 | } |
kamg@2232 | 463 | |
kamg@2232 | 464 | public: |
kamg@2232 | 465 | static bool is_frame_type(u1 tag) { |
kamg@2232 | 466 | return frame_type_to_chops(tag) > 0 && frame_type_to_chops(tag) < 4; |
kamg@2232 | 467 | } |
kamg@2232 | 468 | |
kamg@2232 | 469 | static chop_frame* at(address addr) { |
kamg@2232 | 470 | assert(is_frame_type(*addr), "Wrong frame id"); |
kamg@2232 | 471 | return (chop_frame*)addr; |
kamg@2232 | 472 | } |
kamg@2232 | 473 | |
kamg@2232 | 474 | static chop_frame* create_at(address addr, int offset_delta, int chops) { |
kamg@2232 | 475 | chop_frame* sm = (chop_frame*)addr; |
kamg@2232 | 476 | sm->set_chops(chops); |
kamg@2232 | 477 | sm->set_offset_delta(offset_delta); |
kamg@2232 | 478 | return sm; |
kamg@2232 | 479 | } |
kamg@2232 | 480 | |
kamg@2232 | 481 | static size_t calculate_size() { |
kamg@2232 | 482 | return sizeof(u1) + sizeof(u2); |
kamg@2232 | 483 | } |
kamg@2232 | 484 | |
kamg@2232 | 485 | size_t size() const { return calculate_size(); } |
kamg@2232 | 486 | int offset_delta() const { |
kamg@2232 | 487 | return Bytes::get_Java_u2(offset_delta_addr()) + 1; |
kamg@2232 | 488 | } |
kamg@2232 | 489 | void set_offset_delta(int offset_delta) { |
kamg@2232 | 490 | Bytes::put_Java_u2(offset_delta_addr(), offset_delta - 1); |
kamg@2232 | 491 | } |
kamg@2232 | 492 | |
kamg@2232 | 493 | int chops() const { |
kamg@2232 | 494 | int chops = frame_type_to_chops(frame_type()); |
kamg@2232 | 495 | assert(chops > 0 && chops < 4, "Invalid number of chops in frame"); |
kamg@2232 | 496 | return chops; |
kamg@2232 | 497 | } |
kamg@2232 | 498 | void set_chops(int chops) { |
kamg@2232 | 499 | assert(chops > 0 && chops <= 3, "Bad number of chops"); |
kamg@2232 | 500 | set_frame_type(chops_to_frame_type(chops)); |
kamg@2232 | 501 | } |
kamg@2232 | 502 | |
kamg@2232 | 503 | int number_of_types() const { return 0; } |
kamg@2232 | 504 | verification_type_info* types() const { return NULL; } |
kamg@2232 | 505 | bool is_valid_offset(int offset) { return true; } |
kamg@2232 | 506 | |
kamg@2232 | 507 | bool verify_subtype(address start, address end) const { |
kamg@2232 | 508 | return frame_type_addr() + size() <= end; |
kamg@2232 | 509 | } |
kamg@2232 | 510 | |
kamg@3992 | 511 | void print_on(outputStream* st, int current_offset = -1) const { |
kamg@3992 | 512 | st->print("chop_frame(@%d,%d)", offset_delta() + current_offset, chops()); |
kamg@2232 | 513 | } |
kamg@2232 | 514 | }; |
kamg@2232 | 515 | |
kamg@2232 | 516 | class append_frame : public stack_map_frame { |
kamg@2232 | 517 | private: |
kamg@2232 | 518 | address offset_delta_addr() const { return frame_type_addr() + sizeof(u1); } |
kamg@2232 | 519 | address types_addr() const { return offset_delta_addr() + sizeof(u2); } |
kamg@2232 | 520 | |
kamg@2232 | 521 | static int frame_type_to_appends(u1 frame_type) { |
kamg@2232 | 522 | int append = frame_type - 251; |
kamg@2232 | 523 | return append; |
kamg@2232 | 524 | } |
kamg@2232 | 525 | |
kamg@2232 | 526 | static u1 appends_to_frame_type(int appends) { |
kamg@2232 | 527 | assert(appends > 0 && appends < 4, "Invalid append amount"); |
kamg@2232 | 528 | return 251 + appends; |
kamg@2232 | 529 | } |
kamg@2232 | 530 | |
kamg@2232 | 531 | public: |
kamg@2232 | 532 | static bool is_frame_type(u1 tag) { |
kamg@2232 | 533 | return frame_type_to_appends(tag) > 0 && frame_type_to_appends(tag) < 4; |
kamg@2232 | 534 | } |
kamg@2232 | 535 | |
kamg@2232 | 536 | static append_frame* at(address addr) { |
kamg@2232 | 537 | assert(is_frame_type(*addr), "Wrong frame id"); |
kamg@2232 | 538 | return (append_frame*)addr; |
kamg@2232 | 539 | } |
kamg@2232 | 540 | |
kamg@2232 | 541 | static append_frame* create_at( |
kamg@2232 | 542 | address addr, int offset_delta, int appends, |
kamg@2232 | 543 | verification_type_info* types) { |
kamg@2232 | 544 | append_frame* sm = (append_frame*)addr; |
kamg@2232 | 545 | sm->set_appends(appends); |
kamg@2232 | 546 | sm->set_offset_delta(offset_delta); |
kamg@2232 | 547 | if (types != NULL) { |
kamg@2232 | 548 | verification_type_info* cur = sm->types(); |
kamg@2232 | 549 | for (int i = 0; i < appends; ++i) { |
kamg@2232 | 550 | cur->copy_from(types); |
kamg@2232 | 551 | cur = cur->next(); |
kamg@2232 | 552 | types = types->next(); |
kamg@2232 | 553 | } |
kamg@2232 | 554 | } |
kamg@2232 | 555 | return sm; |
kamg@2232 | 556 | } |
kamg@2232 | 557 | |
kamg@2232 | 558 | static size_t calculate_size(int appends, verification_type_info* types) { |
kamg@2232 | 559 | size_t sz = sizeof(u1) + sizeof(u2); |
kamg@2232 | 560 | for (int i = 0; i < appends; ++i) { |
kamg@2232 | 561 | sz += types->size(); |
kamg@2232 | 562 | types = types->next(); |
kamg@2232 | 563 | } |
kamg@2232 | 564 | return sz; |
kamg@2232 | 565 | } |
kamg@2232 | 566 | |
kamg@2232 | 567 | static size_t max_size() { |
kamg@2232 | 568 | return sizeof(u1) + sizeof(u2) + 3 * verification_type_info::max_size(); |
kamg@2232 | 569 | } |
kamg@2232 | 570 | |
kamg@2232 | 571 | size_t size() const { return calculate_size(number_of_types(), types()); } |
kamg@2232 | 572 | int offset_delta() const { |
kamg@2232 | 573 | return Bytes::get_Java_u2(offset_delta_addr()) + 1; |
kamg@2232 | 574 | } |
kamg@2232 | 575 | |
kamg@2232 | 576 | void set_offset_delta(int offset_delta) { |
kamg@2232 | 577 | Bytes::put_Java_u2(offset_delta_addr(), offset_delta - 1); |
kamg@2232 | 578 | } |
kamg@2232 | 579 | |
kamg@2232 | 580 | void set_appends(int appends) { |
kamg@2232 | 581 | assert(appends > 0 && appends < 4, "Bad number of appends"); |
kamg@2232 | 582 | set_frame_type(appends_to_frame_type(appends)); |
kamg@2232 | 583 | } |
kamg@2232 | 584 | |
kamg@2232 | 585 | int number_of_types() const { |
kamg@2232 | 586 | int appends = frame_type_to_appends(frame_type()); |
kamg@2232 | 587 | assert(appends > 0 && appends < 4, "Invalid number of appends in frame"); |
kamg@2232 | 588 | return appends; |
kamg@2232 | 589 | } |
kamg@2232 | 590 | verification_type_info* types() const { |
kamg@2232 | 591 | return verification_type_info::at(types_addr()); |
kamg@2232 | 592 | } |
kamg@2232 | 593 | bool is_valid_offset(int offset) const { return true; } |
kamg@2232 | 594 | |
kamg@2232 | 595 | bool verify_subtype(address start, address end) const { |
kamg@2232 | 596 | verification_type_info* vti = types(); |
kamg@2232 | 597 | if ((address)vti < end && vti->verify(start, end)) { |
kamg@2232 | 598 | int nof = number_of_types(); |
kamg@2232 | 599 | vti = vti->next(); |
kamg@2232 | 600 | if (nof < 2 || vti->verify(start, end)) { |
kamg@2232 | 601 | vti = vti->next(); |
kamg@2232 | 602 | if (nof < 3 || vti->verify(start, end)) { |
kamg@2232 | 603 | return true; |
kamg@2232 | 604 | } |
kamg@2232 | 605 | } |
kamg@2232 | 606 | } |
kamg@2232 | 607 | return false; |
kamg@2232 | 608 | } |
kamg@2232 | 609 | |
kamg@3992 | 610 | void print_on(outputStream* st, int current_offset = -1) const { |
kamg@3992 | 611 | st->print("append_frame(@%d,", offset_delta() + current_offset); |
kamg@2232 | 612 | verification_type_info* vti = types(); |
kamg@2232 | 613 | for (int i = 0; i < number_of_types(); ++i) { |
kamg@2232 | 614 | vti->print_on(st); |
kamg@2232 | 615 | if (i != number_of_types() - 1) { |
kamg@2232 | 616 | st->print(","); |
kamg@2232 | 617 | } |
kamg@2232 | 618 | vti = vti->next(); |
kamg@2232 | 619 | } |
kamg@2232 | 620 | st->print(")"); |
kamg@2232 | 621 | } |
kamg@2232 | 622 | }; |
kamg@2232 | 623 | |
kamg@2232 | 624 | class full_frame : public stack_map_frame { |
kamg@2232 | 625 | private: |
kamg@2232 | 626 | address offset_delta_addr() const { return frame_type_addr() + sizeof(u1); } |
kamg@2232 | 627 | address num_locals_addr() const { return offset_delta_addr() + sizeof(u2); } |
kamg@2232 | 628 | address locals_addr() const { return num_locals_addr() + sizeof(u2); } |
kamg@2232 | 629 | address stack_slots_addr(address end_of_locals) const { |
kamg@2232 | 630 | return end_of_locals; } |
kamg@2232 | 631 | address stack_addr(address end_of_locals) const { |
kamg@2232 | 632 | return stack_slots_addr(end_of_locals) + sizeof(u2); } |
kamg@2232 | 633 | |
kamg@2232 | 634 | enum { _frame_id = 255 }; |
kamg@2232 | 635 | |
kamg@2232 | 636 | public: |
kamg@2232 | 637 | static bool is_frame_type(u1 tag) { |
kamg@2232 | 638 | return tag == _frame_id; |
kamg@2232 | 639 | } |
kamg@2232 | 640 | |
kamg@2232 | 641 | static full_frame* at(address addr) { |
kamg@2232 | 642 | assert(is_frame_type(*addr), "Wrong frame id"); |
kamg@2232 | 643 | return (full_frame*)addr; |
kamg@2232 | 644 | } |
kamg@2232 | 645 | |
kamg@2232 | 646 | static full_frame* create_at( |
kamg@2232 | 647 | address addr, int offset_delta, int num_locals, |
kamg@2232 | 648 | verification_type_info* locals, |
kamg@2232 | 649 | int stack_slots, verification_type_info* stack) { |
kamg@2232 | 650 | full_frame* sm = (full_frame*)addr; |
kamg@2232 | 651 | sm->set_frame_type(_frame_id); |
kamg@2232 | 652 | sm->set_offset_delta(offset_delta); |
kamg@2232 | 653 | sm->set_num_locals(num_locals); |
kamg@2232 | 654 | if (locals != NULL) { |
kamg@2232 | 655 | verification_type_info* cur = sm->locals(); |
kamg@2232 | 656 | for (int i = 0; i < num_locals; ++i) { |
kamg@2232 | 657 | cur->copy_from(locals); |
kamg@2232 | 658 | cur = cur->next(); |
kamg@2232 | 659 | locals = locals->next(); |
kamg@2232 | 660 | } |
kamg@2232 | 661 | address end_of_locals = (address)cur; |
kamg@2232 | 662 | sm->set_stack_slots(end_of_locals, stack_slots); |
kamg@2232 | 663 | cur = sm->stack(end_of_locals); |
kamg@2232 | 664 | for (int i = 0; i < stack_slots; ++i) { |
kamg@2232 | 665 | cur->copy_from(stack); |
kamg@2232 | 666 | cur = cur->next(); |
kamg@2232 | 667 | stack = stack->next(); |
kamg@2232 | 668 | } |
kamg@2232 | 669 | } |
kamg@2232 | 670 | return sm; |
kamg@2232 | 671 | } |
kamg@2232 | 672 | |
kamg@2232 | 673 | static size_t calculate_size( |
kamg@2232 | 674 | int num_locals, verification_type_info* locals, |
kamg@2232 | 675 | int stack_slots, verification_type_info* stack) { |
kamg@2232 | 676 | size_t sz = sizeof(u1) + sizeof(u2) + sizeof(u2) + sizeof(u2); |
kamg@2232 | 677 | verification_type_info* vti = locals; |
kamg@2232 | 678 | for (int i = 0; i < num_locals; ++i) { |
kamg@2232 | 679 | sz += vti->size(); |
kamg@2232 | 680 | vti = vti->next(); |
kamg@2232 | 681 | } |
kamg@2232 | 682 | vti = stack; |
kamg@2232 | 683 | for (int i = 0; i < stack_slots; ++i) { |
kamg@2232 | 684 | sz += vti->size(); |
kamg@2232 | 685 | vti = vti->next(); |
kamg@2232 | 686 | } |
kamg@2232 | 687 | return sz; |
kamg@2232 | 688 | } |
kamg@2232 | 689 | |
kamg@2232 | 690 | static size_t max_size(int locals, int stack) { |
kamg@2232 | 691 | return sizeof(u1) + 3 * sizeof(u2) + |
kamg@2232 | 692 | (locals + stack) * verification_type_info::max_size(); |
kamg@2232 | 693 | } |
kamg@2232 | 694 | |
kamg@2232 | 695 | size_t size() const { |
kamg@2232 | 696 | address eol = end_of_locals(); |
kamg@2232 | 697 | return calculate_size(num_locals(), locals(), stack_slots(eol), stack(eol)); |
kamg@2232 | 698 | } |
kamg@2232 | 699 | |
kamg@2232 | 700 | int offset_delta() const { |
kamg@2232 | 701 | return Bytes::get_Java_u2(offset_delta_addr()) + 1; |
kamg@2232 | 702 | } |
kamg@2232 | 703 | int num_locals() const { return Bytes::get_Java_u2(num_locals_addr()); } |
kamg@2232 | 704 | verification_type_info* locals() const { |
kamg@2232 | 705 | return verification_type_info::at(locals_addr()); |
kamg@2232 | 706 | } |
kamg@2232 | 707 | address end_of_locals() const { |
kamg@2232 | 708 | verification_type_info* vti = locals(); |
kamg@2232 | 709 | for (int i = 0; i < num_locals(); ++i) { |
kamg@2232 | 710 | vti = vti->next(); |
kamg@2232 | 711 | } |
kamg@2232 | 712 | return (address)vti; |
kamg@2232 | 713 | } |
kamg@2232 | 714 | int stack_slots(address end_of_locals) const { |
kamg@2232 | 715 | return Bytes::get_Java_u2(stack_slots_addr(end_of_locals)); |
kamg@2232 | 716 | } |
kamg@2232 | 717 | verification_type_info* stack(address end_of_locals) const { |
kamg@2232 | 718 | return verification_type_info::at(stack_addr(end_of_locals)); |
kamg@2232 | 719 | } |
kamg@2232 | 720 | |
kamg@2232 | 721 | void set_offset_delta(int offset_delta) { |
kamg@2232 | 722 | Bytes::put_Java_u2(offset_delta_addr(), offset_delta - 1); |
kamg@2232 | 723 | } |
kamg@2232 | 724 | void set_num_locals(int num_locals) { |
kamg@2232 | 725 | Bytes::put_Java_u2(num_locals_addr(), num_locals); |
kamg@2232 | 726 | } |
kamg@2232 | 727 | void set_stack_slots(address end_of_locals, int stack_slots) { |
kamg@2232 | 728 | Bytes::put_Java_u2(stack_slots_addr(end_of_locals), stack_slots); |
kamg@2232 | 729 | } |
kamg@2232 | 730 | |
kamg@2232 | 731 | // These return only the locals. Extra processing is required for stack |
kamg@2232 | 732 | // types of full frames. |
kamg@2232 | 733 | int number_of_types() const { return num_locals(); } |
kamg@2232 | 734 | verification_type_info* types() const { return locals(); } |
kamg@2232 | 735 | bool is_valid_offset(int offset) { return true; } |
kamg@2232 | 736 | |
kamg@2232 | 737 | bool verify_subtype(address start, address end) const { |
kamg@2232 | 738 | verification_type_info* vti = types(); |
kamg@2232 | 739 | if ((address)vti >= end) { |
kamg@2232 | 740 | return false; |
kamg@2232 | 741 | } |
kamg@2232 | 742 | int count = number_of_types(); |
kamg@2232 | 743 | for (int i = 0; i < count; ++i) { |
kamg@2232 | 744 | if (!vti->verify(start, end)) { |
kamg@2232 | 745 | return false; |
kamg@2232 | 746 | } |
kamg@2232 | 747 | vti = vti->next(); |
kamg@2232 | 748 | } |
kamg@2232 | 749 | address eol = (address)vti; |
kamg@2232 | 750 | if (eol + sizeof(u2) > end) { |
kamg@2232 | 751 | return false; |
kamg@2232 | 752 | } |
kamg@2232 | 753 | count = stack_slots(eol); |
kamg@2232 | 754 | vti = stack(eol); |
kamg@2232 | 755 | for (int i = 0; i < stack_slots(eol); ++i) { |
kamg@2232 | 756 | if (!vti->verify(start, end)) { |
kamg@2232 | 757 | return false; |
kamg@2232 | 758 | } |
kamg@2232 | 759 | vti = vti->next(); |
kamg@2232 | 760 | } |
kamg@2232 | 761 | return true; |
kamg@2232 | 762 | } |
kamg@2232 | 763 | |
kamg@3992 | 764 | void print_on(outputStream* st, int current_offset = -1) const { |
kamg@3992 | 765 | st->print("full_frame(@%d,{", offset_delta() + current_offset); |
kamg@2232 | 766 | verification_type_info* vti = locals(); |
kamg@2232 | 767 | for (int i = 0; i < num_locals(); ++i) { |
kamg@2232 | 768 | vti->print_on(st); |
kamg@2232 | 769 | if (i != num_locals() - 1) { |
kamg@2232 | 770 | st->print(","); |
kamg@2232 | 771 | } |
kamg@2232 | 772 | vti = vti->next(); |
kamg@2232 | 773 | } |
kamg@2232 | 774 | st->print("},{"); |
kamg@2232 | 775 | address end_of_locals = (address)vti; |
kamg@2232 | 776 | vti = stack(end_of_locals); |
kamg@2232 | 777 | int ss = stack_slots(end_of_locals); |
kamg@2232 | 778 | for (int i = 0; i < ss; ++i) { |
kamg@2232 | 779 | vti->print_on(st); |
kamg@2232 | 780 | if (i != ss - 1) { |
kamg@2232 | 781 | st->print(","); |
kamg@2232 | 782 | } |
kamg@2232 | 783 | vti = vti->next(); |
kamg@2232 | 784 | } |
kamg@2232 | 785 | st->print("})"); |
kamg@2232 | 786 | } |
kamg@2232 | 787 | }; |
kamg@2232 | 788 | |
kamg@2232 | 789 | #define VIRTUAL_DISPATCH(stack_frame_type, func_name, args) \ |
kamg@2232 | 790 | stack_frame_type* item_##stack_frame_type = as_##stack_frame_type(); \ |
kamg@2232 | 791 | if (item_##stack_frame_type != NULL) { \ |
kamg@2232 | 792 | return item_##stack_frame_type->func_name args; \ |
kamg@2232 | 793 | } |
kamg@2232 | 794 | |
kamg@2232 | 795 | #define VOID_VIRTUAL_DISPATCH(stack_frame_type, func_name, args) \ |
kamg@2232 | 796 | stack_frame_type* item_##stack_frame_type = as_##stack_frame_type(); \ |
kamg@2232 | 797 | if (item_##stack_frame_type != NULL) { \ |
kamg@2232 | 798 | item_##stack_frame_type->func_name args; \ |
kamg@2232 | 799 | return; \ |
kamg@2232 | 800 | } |
kamg@2232 | 801 | |
kamg@2232 | 802 | size_t stack_map_frame::size() const { |
kamg@2232 | 803 | FOR_EACH_STACKMAP_FRAME_TYPE(VIRTUAL_DISPATCH, size, ()); |
kamg@2232 | 804 | return 0; |
kamg@2232 | 805 | } |
kamg@2232 | 806 | |
kamg@2232 | 807 | int stack_map_frame::offset_delta() const { |
kamg@2232 | 808 | FOR_EACH_STACKMAP_FRAME_TYPE(VIRTUAL_DISPATCH, offset_delta, ()); |
kamg@2232 | 809 | return 0; |
kamg@2232 | 810 | } |
kamg@2232 | 811 | |
kamg@2232 | 812 | void stack_map_frame::set_offset_delta(int offset_delta) { |
kamg@2232 | 813 | FOR_EACH_STACKMAP_FRAME_TYPE( |
kamg@2232 | 814 | VOID_VIRTUAL_DISPATCH, set_offset_delta, (offset_delta)); |
kamg@2232 | 815 | } |
kamg@2232 | 816 | |
kamg@2232 | 817 | int stack_map_frame::number_of_types() const { |
kamg@2232 | 818 | FOR_EACH_STACKMAP_FRAME_TYPE(VIRTUAL_DISPATCH, number_of_types, ()); |
kamg@2232 | 819 | return 0; |
kamg@2232 | 820 | } |
kamg@2232 | 821 | |
kamg@2232 | 822 | verification_type_info* stack_map_frame::types() const { |
kamg@2232 | 823 | FOR_EACH_STACKMAP_FRAME_TYPE(VIRTUAL_DISPATCH, types, ()); |
kamg@2232 | 824 | return NULL; |
kamg@2232 | 825 | } |
kamg@2232 | 826 | |
kamg@2232 | 827 | bool stack_map_frame::is_valid_offset(int offset) const { |
kamg@2232 | 828 | FOR_EACH_STACKMAP_FRAME_TYPE(VIRTUAL_DISPATCH, is_valid_offset, (offset)); |
kamg@2232 | 829 | return true; |
kamg@2232 | 830 | } |
kamg@2232 | 831 | |
kamg@2232 | 832 | bool stack_map_frame::verify(address start, address end) const { |
kamg@2232 | 833 | if (frame_type_addr() >= start && frame_type_addr() < end) { |
kamg@2232 | 834 | FOR_EACH_STACKMAP_FRAME_TYPE( |
kamg@2232 | 835 | VIRTUAL_DISPATCH, verify_subtype, (start, end)); |
kamg@2232 | 836 | } |
kamg@2232 | 837 | return false; |
kamg@2232 | 838 | } |
kamg@2232 | 839 | |
kamg@3992 | 840 | void stack_map_frame::print_on(outputStream* st, int offs = -1) const { |
kamg@3992 | 841 | FOR_EACH_STACKMAP_FRAME_TYPE(VOID_VIRTUAL_DISPATCH, print_on, (st, offs)); |
kamg@2232 | 842 | } |
kamg@2232 | 843 | |
kamg@2232 | 844 | #undef VIRTUAL_DISPATCH |
kamg@2232 | 845 | #undef VOID_VIRTUAL_DISPATCH |
kamg@2232 | 846 | |
kamg@2232 | 847 | #define AS_SUBTYPE_DEF(stack_frame_type, arg1, arg2) \ |
kamg@2232 | 848 | stack_frame_type* stack_map_frame::as_##stack_frame_type() const { \ |
kamg@2232 | 849 | if (stack_frame_type::is_frame_type(frame_type())) { \ |
kamg@2232 | 850 | return (stack_frame_type*)this; \ |
kamg@2232 | 851 | } else { \ |
kamg@2232 | 852 | return NULL; \ |
kamg@2232 | 853 | } \ |
kamg@2232 | 854 | } |
kamg@2232 | 855 | |
kamg@2232 | 856 | FOR_EACH_STACKMAP_FRAME_TYPE(AS_SUBTYPE_DEF, x, x) |
kamg@2232 | 857 | #undef AS_SUBTYPE_DEF |
kamg@2232 | 858 | |
kamg@3992 | 859 | class stack_map_table { |
kamg@3992 | 860 | private: |
kamg@3992 | 861 | address number_of_entries_addr() const { |
kamg@3992 | 862 | return (address)this; |
kamg@3992 | 863 | } |
kamg@3992 | 864 | address entries_addr() const { |
kamg@3992 | 865 | return number_of_entries_addr() + sizeof(u2); |
kamg@3992 | 866 | } |
kamg@3992 | 867 | |
kamg@3992 | 868 | protected: |
kamg@3992 | 869 | // No constructors - should be 'private', but GCC issues a warning if it is |
kamg@3992 | 870 | stack_map_table() {} |
kamg@3992 | 871 | stack_map_table(const stack_map_table&) {} |
kamg@3992 | 872 | |
kamg@3992 | 873 | public: |
kamg@3992 | 874 | |
kamg@3992 | 875 | static stack_map_table* at(address addr) { |
kamg@3992 | 876 | return (stack_map_table*)addr; |
kamg@3992 | 877 | } |
kamg@3992 | 878 | |
kamg@3992 | 879 | u2 number_of_entries() const { |
kamg@3992 | 880 | return Bytes::get_Java_u2(number_of_entries_addr()); |
kamg@3992 | 881 | } |
kamg@3992 | 882 | stack_map_frame* entries() const { |
kamg@3992 | 883 | return stack_map_frame::at(entries_addr()); |
kamg@3992 | 884 | } |
kamg@3992 | 885 | |
kamg@3992 | 886 | void set_number_of_entries(u2 num) { |
kamg@3992 | 887 | Bytes::put_Java_u2(number_of_entries_addr(), num); |
kamg@3992 | 888 | } |
kamg@3992 | 889 | }; |
kamg@3992 | 890 | |
kamg@2232 | 891 | class stack_map_table_attribute { |
kamg@2232 | 892 | private: |
kamg@2232 | 893 | address name_index_addr() const { |
kamg@2232 | 894 | return (address)this; } |
kamg@2232 | 895 | address attribute_length_addr() const { |
kamg@2232 | 896 | return name_index_addr() + sizeof(u2); } |
kamg@3992 | 897 | address stack_map_table_addr() const { |
kamg@2232 | 898 | return attribute_length_addr() + sizeof(u4); } |
kamg@2232 | 899 | |
kamg@2232 | 900 | protected: |
kamg@2232 | 901 | // No constructors - should be 'private', but GCC issues a warning if it is |
kamg@2232 | 902 | stack_map_table_attribute() {} |
kamg@2232 | 903 | stack_map_table_attribute(const stack_map_table_attribute&) {} |
kamg@2232 | 904 | |
kamg@2232 | 905 | public: |
kamg@2232 | 906 | |
kamg@2232 | 907 | static stack_map_table_attribute* at(address addr) { |
kamg@2232 | 908 | return (stack_map_table_attribute*)addr; |
kamg@2232 | 909 | } |
kamg@2232 | 910 | |
kamg@2232 | 911 | u2 name_index() const { |
kamg@3992 | 912 | return Bytes::get_Java_u2(name_index_addr()); } |
kamg@2232 | 913 | u4 attribute_length() const { |
kamg@3992 | 914 | return Bytes::get_Java_u4(attribute_length_addr()); } |
kamg@3992 | 915 | stack_map_table* table() const { |
kamg@3992 | 916 | return stack_map_table::at(stack_map_table_addr()); |
kamg@2232 | 917 | } |
kamg@2232 | 918 | |
kamg@2232 | 919 | void set_name_index(u2 idx) { |
kamg@2232 | 920 | Bytes::put_Java_u2(name_index_addr(), idx); |
kamg@2232 | 921 | } |
kamg@2232 | 922 | void set_attribute_length(u4 len) { |
kamg@2232 | 923 | Bytes::put_Java_u4(attribute_length_addr(), len); |
kamg@2232 | 924 | } |
kamg@2232 | 925 | }; |
stefank@2314 | 926 | |
kamg@3992 | 927 | #undef FOR_EACH_STACKMAP_FRAME_TYPE |
kamg@3992 | 928 | |
stefank@2314 | 929 | #endif // SHARE_VM_CLASSFILE_STACKMAPTABLEFORMAT_HPP |