Tue, 15 Nov 2011 20:17:33 +0100
7110152: assert(size_in_words <= (julong)max_jint) failed: no overflow
Summary: Reduce what arrayOopDesc::max_array_length() returns to avoid int overflow
Reviewed-by: kvn, dholmes, tonyp
duke@435 | 1 | /* |
never@2462 | 2 | * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 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. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef SHARE_VM_OOPS_METHODOOP_HPP |
stefank@2314 | 26 | #define SHARE_VM_OOPS_METHODOOP_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "classfile/vmSymbols.hpp" |
stefank@2314 | 29 | #include "code/compressedStream.hpp" |
stefank@2314 | 30 | #include "compiler/oopMap.hpp" |
stefank@2314 | 31 | #include "interpreter/invocationCounter.hpp" |
stefank@2314 | 32 | #include "oops/constMethodOop.hpp" |
stefank@2314 | 33 | #include "oops/constantPoolOop.hpp" |
stefank@2314 | 34 | #include "oops/instanceKlass.hpp" |
stefank@2314 | 35 | #include "oops/oop.hpp" |
stefank@2314 | 36 | #include "oops/typeArrayOop.hpp" |
stefank@2314 | 37 | #include "utilities/accessFlags.hpp" |
stefank@2314 | 38 | #include "utilities/growableArray.hpp" |
stefank@2314 | 39 | |
duke@435 | 40 | // A methodOop represents a Java method. |
duke@435 | 41 | // |
duke@435 | 42 | // Memory layout (each line represents a word). Note that most applications load thousands of methods, |
duke@435 | 43 | // so keeping the size of this structure small has a big impact on footprint. |
duke@435 | 44 | // |
duke@435 | 45 | // We put all oops and method_size first for better gc cache locality. |
duke@435 | 46 | // |
duke@435 | 47 | // The actual bytecodes are inlined after the end of the methodOopDesc struct. |
duke@435 | 48 | // |
duke@435 | 49 | // There are bits in the access_flags telling whether inlined tables are present. |
duke@435 | 50 | // Note that accessing the line number and local variable tables is not performance critical at all. |
duke@435 | 51 | // Accessing the checked exceptions table is used by reflection, so we put that last to make access |
duke@435 | 52 | // to it fast. |
duke@435 | 53 | // |
duke@435 | 54 | // The line number table is compressed and inlined following the byte codes. It is found as the first |
duke@435 | 55 | // byte following the byte codes. The checked exceptions table and the local variable table are inlined |
duke@435 | 56 | // after the line number table, and indexed from the end of the method. We do not compress the checked |
duke@435 | 57 | // exceptions table since the average length is less than 2, and do not bother to compress the local |
duke@435 | 58 | // variable table either since it is mostly absent. |
duke@435 | 59 | // |
duke@435 | 60 | // Note that native_function and signature_handler has to be at fixed offsets (required by the interpreter) |
duke@435 | 61 | // |
duke@435 | 62 | // |------------------------------------------------------| |
duke@435 | 63 | // | header | |
duke@435 | 64 | // | klass | |
duke@435 | 65 | // |------------------------------------------------------| |
duke@435 | 66 | // | constMethodOop (oop) | |
duke@435 | 67 | // | constants (oop) | |
duke@435 | 68 | // |------------------------------------------------------| |
duke@435 | 69 | // | methodData (oop) | |
duke@435 | 70 | // | interp_invocation_count | |
duke@435 | 71 | // |------------------------------------------------------| |
duke@435 | 72 | // | access_flags | |
duke@435 | 73 | // | vtable_index | |
duke@435 | 74 | // |------------------------------------------------------| |
duke@435 | 75 | // | result_index (C++ interpreter only) | |
duke@435 | 76 | // |------------------------------------------------------| |
duke@435 | 77 | // | method_size | max_stack | |
duke@435 | 78 | // | max_locals | size_of_parameters | |
duke@435 | 79 | // |------------------------------------------------------| |
iveresov@2138 | 80 | // | intrinsic_id, (unused) | throwout_count | |
duke@435 | 81 | // |------------------------------------------------------| |
iveresov@2138 | 82 | // | num_breakpoints | (unused) | |
duke@435 | 83 | // |------------------------------------------------------| |
duke@435 | 84 | // | invocation_counter | |
duke@435 | 85 | // | backedge_counter | |
duke@435 | 86 | // |------------------------------------------------------| |
iveresov@2630 | 87 | // | prev_time (tiered only, 64 bit wide) | |
iveresov@2630 | 88 | // | | |
iveresov@2630 | 89 | // |------------------------------------------------------| |
iveresov@2630 | 90 | // | rate (tiered) | |
iveresov@2630 | 91 | // |------------------------------------------------------| |
duke@435 | 92 | // | code (pointer) | |
duke@435 | 93 | // | i2i (pointer) | |
duke@435 | 94 | // | adapter (pointer) | |
duke@435 | 95 | // | from_compiled_entry (pointer) | |
duke@435 | 96 | // | from_interpreted_entry (pointer) | |
duke@435 | 97 | // |------------------------------------------------------| |
duke@435 | 98 | // | native_function (present only if native) | |
duke@435 | 99 | // | signature_handler (present only if native) | |
duke@435 | 100 | // |------------------------------------------------------| |
duke@435 | 101 | |
duke@435 | 102 | |
duke@435 | 103 | class CheckedExceptionElement; |
duke@435 | 104 | class LocalVariableTableElement; |
duke@435 | 105 | class AdapterHandlerEntry; |
duke@435 | 106 | class methodDataOopDesc; |
duke@435 | 107 | |
duke@435 | 108 | class methodOopDesc : public oopDesc { |
duke@435 | 109 | friend class methodKlass; |
duke@435 | 110 | friend class VMStructs; |
duke@435 | 111 | private: |
duke@435 | 112 | constMethodOop _constMethod; // Method read-only data. |
duke@435 | 113 | constantPoolOop _constants; // Constant pool |
duke@435 | 114 | methodDataOop _method_data; |
iveresov@2138 | 115 | int _interpreter_invocation_count; // Count of times invoked (reused as prev_event_count in tiered) |
duke@435 | 116 | AccessFlags _access_flags; // Access flags |
duke@435 | 117 | int _vtable_index; // vtable index of this method (see VtableIndexFlag) |
duke@435 | 118 | // note: can have vtables with >2**16 elements (because of inheritance) |
duke@435 | 119 | #ifdef CC_INTERP |
duke@435 | 120 | int _result_index; // C++ interpreter needs for converting results to/from stack |
duke@435 | 121 | #endif |
duke@435 | 122 | u2 _method_size; // size of this object |
duke@435 | 123 | u2 _max_stack; // Maximum number of entries on the expression stack |
duke@435 | 124 | u2 _max_locals; // Number of local variables used by this method |
duke@435 | 125 | u2 _size_of_parameters; // size of the parameter block (receiver + arguments) in words |
jrose@1291 | 126 | u1 _intrinsic_id; // vmSymbols::intrinsic_id (0 == _none) |
duke@435 | 127 | u2 _interpreter_throwout_count; // Count of times method was exited via exception while interpreting |
duke@435 | 128 | u2 _number_of_breakpoints; // fullspeed debugging support |
duke@435 | 129 | InvocationCounter _invocation_counter; // Incremented before each activation of the method - used to trigger frequency-based optimizations |
duke@435 | 130 | InvocationCounter _backedge_counter; // Incremented before each backedge taken - used to trigger frequencey-based optimizations |
iveresov@2138 | 131 | |
iveresov@2630 | 132 | #ifdef TIERED |
iveresov@2630 | 133 | jlong _prev_time; // Previous time the rate was acquired |
iveresov@2630 | 134 | float _rate; // Events (invocation and backedge counter increments) per millisecond |
iveresov@2630 | 135 | #endif |
iveresov@2630 | 136 | |
duke@435 | 137 | #ifndef PRODUCT |
duke@435 | 138 | int _compiled_invocation_count; // Number of nmethod invocations so far (for perf. debugging) |
duke@435 | 139 | #endif |
duke@435 | 140 | // Entry point for calling both from and to the interpreter. |
duke@435 | 141 | address _i2i_entry; // All-args-on-stack calling convention |
duke@435 | 142 | // Adapter blob (i2c/c2i) for this methodOop. Set once when method is linked. |
duke@435 | 143 | AdapterHandlerEntry* _adapter; |
duke@435 | 144 | // Entry point for calling from compiled code, to compiled code if it exists |
duke@435 | 145 | // or else the interpreter. |
duke@435 | 146 | volatile address _from_compiled_entry; // Cache of: _code ? _code->entry_point() : _adapter->c2i_entry() |
duke@435 | 147 | // The entry point for calling both from and to compiled code is |
duke@435 | 148 | // "_code->entry_point()". Because of tiered compilation and de-opt, this |
duke@435 | 149 | // field can come and go. It can transition from NULL to not-null at any |
duke@435 | 150 | // time (whenever a compile completes). It can transition from not-null to |
duke@435 | 151 | // NULL only at safepoints (because of a de-opt). |
duke@435 | 152 | nmethod* volatile _code; // Points to the corresponding piece of native code |
duke@435 | 153 | volatile address _from_interpreted_entry; // Cache of _code ? _adapter->i2c_entry() : _i2i_entry |
duke@435 | 154 | |
duke@435 | 155 | public: |
jmasa@953 | 156 | |
duke@435 | 157 | // accessors for instance variables |
duke@435 | 158 | constMethodOop constMethod() const { return _constMethod; } |
duke@435 | 159 | void set_constMethod(constMethodOop xconst) { oop_store_without_check((oop*)&_constMethod, (oop)xconst); } |
duke@435 | 160 | |
duke@435 | 161 | |
duke@435 | 162 | static address make_adapters(methodHandle mh, TRAPS); |
duke@435 | 163 | volatile address from_compiled_entry() const { return (address)OrderAccess::load_ptr_acquire(&_from_compiled_entry); } |
duke@435 | 164 | volatile address from_interpreted_entry() const{ return (address)OrderAccess::load_ptr_acquire(&_from_interpreted_entry); } |
duke@435 | 165 | |
duke@435 | 166 | // access flag |
duke@435 | 167 | AccessFlags access_flags() const { return _access_flags; } |
duke@435 | 168 | void set_access_flags(AccessFlags flags) { _access_flags = flags; } |
duke@435 | 169 | |
duke@435 | 170 | // name |
coleenp@2497 | 171 | Symbol* name() const { return _constants->symbol_at(name_index()); } |
duke@435 | 172 | int name_index() const { return constMethod()->name_index(); } |
duke@435 | 173 | void set_name_index(int index) { constMethod()->set_name_index(index); } |
duke@435 | 174 | |
duke@435 | 175 | // signature |
coleenp@2497 | 176 | Symbol* signature() const { return _constants->symbol_at(signature_index()); } |
duke@435 | 177 | int signature_index() const { return constMethod()->signature_index(); } |
duke@435 | 178 | void set_signature_index(int index) { constMethod()->set_signature_index(index); } |
duke@435 | 179 | |
duke@435 | 180 | // generics support |
coleenp@2497 | 181 | Symbol* generic_signature() const { int idx = generic_signature_index(); return ((idx != 0) ? _constants->symbol_at(idx) : (Symbol*)NULL); } |
duke@435 | 182 | int generic_signature_index() const { return constMethod()->generic_signature_index(); } |
duke@435 | 183 | void set_generic_signature_index(int index) { constMethod()->set_generic_signature_index(index); } |
duke@435 | 184 | |
duke@435 | 185 | // annotations support |
duke@435 | 186 | typeArrayOop annotations() const { return instanceKlass::cast(method_holder())->get_method_annotations_of(method_idnum()); } |
duke@435 | 187 | typeArrayOop parameter_annotations() const { return instanceKlass::cast(method_holder())->get_method_parameter_annotations_of(method_idnum()); } |
duke@435 | 188 | typeArrayOop annotation_default() const { return instanceKlass::cast(method_holder())->get_method_default_annotations_of(method_idnum()); } |
duke@435 | 189 | |
duke@435 | 190 | #ifdef CC_INTERP |
duke@435 | 191 | void set_result_index(BasicType type); |
duke@435 | 192 | int result_index() { return _result_index; } |
duke@435 | 193 | #endif |
duke@435 | 194 | |
duke@435 | 195 | // Helper routine: get klass name + "." + method name + signature as |
duke@435 | 196 | // C string, for the purpose of providing more useful NoSuchMethodErrors |
duke@435 | 197 | // and fatal error handling. The string is allocated in resource |
duke@435 | 198 | // area if a buffer is not provided by the caller. |
duke@435 | 199 | char* name_and_sig_as_C_string(); |
duke@435 | 200 | char* name_and_sig_as_C_string(char* buf, int size); |
duke@435 | 201 | |
duke@435 | 202 | // Static routine in the situations we don't have a methodOop |
coleenp@2497 | 203 | static char* name_and_sig_as_C_string(Klass* klass, Symbol* method_name, Symbol* signature); |
coleenp@2497 | 204 | static char* name_and_sig_as_C_string(Klass* klass, Symbol* method_name, Symbol* signature, char* buf, int size); |
duke@435 | 205 | |
never@2462 | 206 | Bytecodes::Code java_code_at(int bci) const { |
never@2462 | 207 | return Bytecodes::java_code_at(this, bcp_from(bci)); |
never@2462 | 208 | } |
never@2462 | 209 | Bytecodes::Code code_at(int bci) const { |
never@2462 | 210 | return Bytecodes::code_at(this, bcp_from(bci)); |
never@2462 | 211 | } |
never@2462 | 212 | |
duke@435 | 213 | // JVMTI breakpoints |
never@2462 | 214 | Bytecodes::Code orig_bytecode_at(int bci) const; |
duke@435 | 215 | void set_orig_bytecode_at(int bci, Bytecodes::Code code); |
duke@435 | 216 | void set_breakpoint(int bci); |
duke@435 | 217 | void clear_breakpoint(int bci); |
duke@435 | 218 | void clear_all_breakpoints(); |
duke@435 | 219 | // Tracking number of breakpoints, for fullspeed debugging. |
duke@435 | 220 | // Only mutated by VM thread. |
duke@435 | 221 | u2 number_of_breakpoints() const { return _number_of_breakpoints; } |
duke@435 | 222 | void incr_number_of_breakpoints() { ++_number_of_breakpoints; } |
duke@435 | 223 | void decr_number_of_breakpoints() { --_number_of_breakpoints; } |
duke@435 | 224 | // Initialization only |
duke@435 | 225 | void clear_number_of_breakpoints() { _number_of_breakpoints = 0; } |
duke@435 | 226 | |
duke@435 | 227 | // index into instanceKlass methods() array |
duke@435 | 228 | u2 method_idnum() const { return constMethod()->method_idnum(); } |
duke@435 | 229 | void set_method_idnum(u2 idnum) { constMethod()->set_method_idnum(idnum); } |
duke@435 | 230 | |
duke@435 | 231 | // code size |
duke@435 | 232 | int code_size() const { return constMethod()->code_size(); } |
duke@435 | 233 | |
duke@435 | 234 | // method size |
duke@435 | 235 | int method_size() const { return _method_size; } |
duke@435 | 236 | void set_method_size(int size) { |
duke@435 | 237 | assert(0 <= size && size < (1 << 16), "invalid method size"); |
duke@435 | 238 | _method_size = size; |
duke@435 | 239 | } |
duke@435 | 240 | |
duke@435 | 241 | // constant pool for klassOop holding this method |
duke@435 | 242 | constantPoolOop constants() const { return _constants; } |
duke@435 | 243 | void set_constants(constantPoolOop c) { oop_store_without_check((oop*)&_constants, c); } |
duke@435 | 244 | |
duke@435 | 245 | // max stack |
duke@435 | 246 | int max_stack() const { return _max_stack; } |
duke@435 | 247 | void set_max_stack(int size) { _max_stack = size; } |
duke@435 | 248 | |
duke@435 | 249 | // max locals |
duke@435 | 250 | int max_locals() const { return _max_locals; } |
duke@435 | 251 | void set_max_locals(int size) { _max_locals = size; } |
iveresov@2138 | 252 | |
iveresov@2138 | 253 | int highest_comp_level() const; |
iveresov@2138 | 254 | void set_highest_comp_level(int level); |
iveresov@2138 | 255 | int highest_osr_comp_level() const; |
iveresov@2138 | 256 | void set_highest_osr_comp_level(int level); |
duke@435 | 257 | |
duke@435 | 258 | // Count of times method was exited via exception while interpreting |
duke@435 | 259 | void interpreter_throwout_increment() { |
duke@435 | 260 | if (_interpreter_throwout_count < 65534) { |
duke@435 | 261 | _interpreter_throwout_count++; |
duke@435 | 262 | } |
duke@435 | 263 | } |
duke@435 | 264 | |
duke@435 | 265 | int interpreter_throwout_count() const { return _interpreter_throwout_count; } |
duke@435 | 266 | void set_interpreter_throwout_count(int count) { _interpreter_throwout_count = count; } |
duke@435 | 267 | |
duke@435 | 268 | // size of parameters |
duke@435 | 269 | int size_of_parameters() const { return _size_of_parameters; } |
duke@435 | 270 | |
duke@435 | 271 | bool has_stackmap_table() const { |
duke@435 | 272 | return constMethod()->has_stackmap_table(); |
duke@435 | 273 | } |
duke@435 | 274 | |
duke@435 | 275 | typeArrayOop stackmap_data() const { |
duke@435 | 276 | return constMethod()->stackmap_data(); |
duke@435 | 277 | } |
duke@435 | 278 | |
kamg@2232 | 279 | void set_stackmap_data(typeArrayOop sd) { |
kamg@2232 | 280 | constMethod()->set_stackmap_data(sd); |
kamg@2232 | 281 | } |
kamg@2232 | 282 | |
duke@435 | 283 | // exception handler table |
duke@435 | 284 | typeArrayOop exception_table() const |
duke@435 | 285 | { return constMethod()->exception_table(); } |
duke@435 | 286 | void set_exception_table(typeArrayOop e) |
duke@435 | 287 | { constMethod()->set_exception_table(e); } |
duke@435 | 288 | bool has_exception_handler() const |
duke@435 | 289 | { return constMethod()->has_exception_handler(); } |
duke@435 | 290 | |
duke@435 | 291 | // Finds the first entry point bci of an exception handler for an |
duke@435 | 292 | // exception of klass ex_klass thrown at throw_bci. A value of NULL |
duke@435 | 293 | // for ex_klass indicates that the exception klass is not known; in |
duke@435 | 294 | // this case it matches any constraint class. Returns -1 if the |
duke@435 | 295 | // exception cannot be handled in this method. The handler |
duke@435 | 296 | // constraint classes are loaded if necessary. Note that this may |
duke@435 | 297 | // throw an exception if loading of the constraint classes causes |
duke@435 | 298 | // an IllegalAccessError (bugid 4307310) or an OutOfMemoryError. |
duke@435 | 299 | // If an exception is thrown, returns the bci of the |
duke@435 | 300 | // exception handler which caused the exception to be thrown, which |
duke@435 | 301 | // is needed for proper retries. See, for example, |
duke@435 | 302 | // InterpreterRuntime::exception_handler_for_exception. |
duke@435 | 303 | int fast_exception_handler_bci_for(KlassHandle ex_klass, int throw_bci, TRAPS); |
duke@435 | 304 | |
duke@435 | 305 | // method data access |
duke@435 | 306 | methodDataOop method_data() const { |
duke@435 | 307 | return _method_data; |
duke@435 | 308 | } |
duke@435 | 309 | void set_method_data(methodDataOop data) { |
duke@435 | 310 | oop_store_without_check((oop*)&_method_data, (oop)data); |
duke@435 | 311 | } |
duke@435 | 312 | |
duke@435 | 313 | // invocation counter |
iveresov@2138 | 314 | InvocationCounter* invocation_counter() { return &_invocation_counter; } |
iveresov@2138 | 315 | InvocationCounter* backedge_counter() { return &_backedge_counter; } |
iveresov@2138 | 316 | |
iveresov@2630 | 317 | #ifdef TIERED |
iveresov@2630 | 318 | // We are reusing interpreter_invocation_count as a holder for the previous event count! |
iveresov@2630 | 319 | // We can do that since interpreter_invocation_count is not used in tiered. |
iveresov@2630 | 320 | int prev_event_count() const { return _interpreter_invocation_count; } |
iveresov@2630 | 321 | void set_prev_event_count(int count) { _interpreter_invocation_count = count; } |
iveresov@2630 | 322 | jlong prev_time() const { return _prev_time; } |
iveresov@2630 | 323 | void set_prev_time(jlong time) { _prev_time = time; } |
iveresov@2630 | 324 | float rate() const { return _rate; } |
iveresov@2630 | 325 | void set_rate(float rate) { _rate = rate; } |
iveresov@2630 | 326 | #endif |
iveresov@2630 | 327 | |
iveresov@2138 | 328 | int invocation_count(); |
iveresov@2138 | 329 | int backedge_count(); |
iveresov@2138 | 330 | |
iveresov@2138 | 331 | bool was_executed_more_than(int n); |
iveresov@2138 | 332 | bool was_never_executed() { return !was_executed_more_than(0); } |
duke@435 | 333 | |
duke@435 | 334 | static void build_interpreter_method_data(methodHandle method, TRAPS); |
duke@435 | 335 | |
iveresov@2138 | 336 | int interpreter_invocation_count() { |
iveresov@2138 | 337 | if (TieredCompilation) return invocation_count(); |
iveresov@2138 | 338 | else return _interpreter_invocation_count; |
iveresov@2138 | 339 | } |
duke@435 | 340 | void set_interpreter_invocation_count(int count) { _interpreter_invocation_count = count; } |
iveresov@2138 | 341 | int increment_interpreter_invocation_count() { |
iveresov@2138 | 342 | if (TieredCompilation) ShouldNotReachHere(); |
iveresov@2138 | 343 | return ++_interpreter_invocation_count; |
iveresov@2138 | 344 | } |
duke@435 | 345 | |
duke@435 | 346 | #ifndef PRODUCT |
iveresov@2138 | 347 | int compiled_invocation_count() const { return _compiled_invocation_count; } |
duke@435 | 348 | void set_compiled_invocation_count(int count) { _compiled_invocation_count = count; } |
duke@435 | 349 | #endif // not PRODUCT |
duke@435 | 350 | |
twisti@1040 | 351 | // Clear (non-shared space) pointers which could not be relevant |
duke@435 | 352 | // if this (shared) method were mapped into another JVM. |
duke@435 | 353 | void remove_unshareable_info(); |
duke@435 | 354 | |
duke@435 | 355 | // nmethod/verified compiler entry |
duke@435 | 356 | address verified_code_entry(); |
duke@435 | 357 | bool check_code() const; // Not inline to avoid circular ref |
duke@435 | 358 | nmethod* volatile code() const { assert( check_code(), "" ); return (nmethod *)OrderAccess::load_ptr_acquire(&_code); } |
duke@435 | 359 | void clear_code(); // Clear out any compiled code |
kvn@1637 | 360 | static void set_code(methodHandle mh, nmethod* code); |
duke@435 | 361 | void set_adapter_entry(AdapterHandlerEntry* adapter) { _adapter = adapter; } |
duke@435 | 362 | address get_i2c_entry(); |
duke@435 | 363 | address get_c2i_entry(); |
duke@435 | 364 | address get_c2i_unverified_entry(); |
duke@435 | 365 | AdapterHandlerEntry* adapter() { return _adapter; } |
duke@435 | 366 | // setup entry points |
duke@435 | 367 | void link_method(methodHandle method, TRAPS); |
duke@435 | 368 | // clear entry points. Used by sharing code |
duke@435 | 369 | void unlink_method(); |
duke@435 | 370 | |
duke@435 | 371 | // vtable index |
duke@435 | 372 | enum VtableIndexFlag { |
duke@435 | 373 | // Valid vtable indexes are non-negative (>= 0). |
duke@435 | 374 | // These few negative values are used as sentinels. |
jrose@1145 | 375 | highest_unused_vtable_index_value = -5, |
duke@435 | 376 | invalid_vtable_index = -4, // distinct from any valid vtable index |
duke@435 | 377 | garbage_vtable_index = -3, // not yet linked; no vtable layout yet |
duke@435 | 378 | nonvirtual_vtable_index = -2 // there is no need for vtable dispatch |
duke@435 | 379 | // 6330203 Note: Do not use -1, which was overloaded with many meanings. |
duke@435 | 380 | }; |
duke@435 | 381 | DEBUG_ONLY(bool valid_vtable_index() const { return _vtable_index >= nonvirtual_vtable_index; }) |
duke@435 | 382 | int vtable_index() const { assert(valid_vtable_index(), ""); |
duke@435 | 383 | return _vtable_index; } |
duke@435 | 384 | void set_vtable_index(int index) { _vtable_index = index; } |
duke@435 | 385 | |
duke@435 | 386 | // interpreter entry |
duke@435 | 387 | address interpreter_entry() const { return _i2i_entry; } |
duke@435 | 388 | // Only used when first initialize so we can set _i2i_entry and _from_interpreted_entry |
duke@435 | 389 | void set_interpreter_entry(address entry) { _i2i_entry = entry; _from_interpreted_entry = entry; } |
duke@435 | 390 | int interpreter_kind(void) { |
duke@435 | 391 | return constMethod()->interpreter_kind(); |
duke@435 | 392 | } |
duke@435 | 393 | void set_interpreter_kind(); |
duke@435 | 394 | void set_interpreter_kind(int kind) { |
duke@435 | 395 | constMethod()->set_interpreter_kind(kind); |
duke@435 | 396 | } |
duke@435 | 397 | |
duke@435 | 398 | // native function (used for native methods only) |
duke@435 | 399 | enum { |
duke@435 | 400 | native_bind_event_is_interesting = true |
duke@435 | 401 | }; |
duke@435 | 402 | address native_function() const { return *(native_function_addr()); } |
duke@435 | 403 | // Must specify a real function (not NULL). |
duke@435 | 404 | // Use clear_native_function() to unregister. |
duke@435 | 405 | void set_native_function(address function, bool post_event_flag); |
duke@435 | 406 | bool has_native_function() const; |
duke@435 | 407 | void clear_native_function(); |
duke@435 | 408 | |
duke@435 | 409 | // signature handler (used for native methods only) |
duke@435 | 410 | address signature_handler() const { return *(signature_handler_addr()); } |
duke@435 | 411 | void set_signature_handler(address handler); |
duke@435 | 412 | |
duke@435 | 413 | // Interpreter oopmap support |
duke@435 | 414 | void mask_for(int bci, InterpreterOopMap* mask); |
duke@435 | 415 | |
duke@435 | 416 | #ifndef PRODUCT |
duke@435 | 417 | // operations on invocation counter |
iveresov@2138 | 418 | void print_invocation_count(); |
duke@435 | 419 | #endif |
duke@435 | 420 | |
duke@435 | 421 | // byte codes |
twisti@1573 | 422 | void set_code(address code) { return constMethod()->set_code(code); } |
duke@435 | 423 | address code_base() const { return constMethod()->code_base(); } |
duke@435 | 424 | bool contains(address bcp) const { return constMethod()->contains(bcp); } |
duke@435 | 425 | |
duke@435 | 426 | // prints byte codes |
duke@435 | 427 | void print_codes() const { print_codes_on(tty); } |
duke@435 | 428 | void print_codes_on(outputStream* st) const PRODUCT_RETURN; |
duke@435 | 429 | void print_codes_on(int from, int to, outputStream* st) const PRODUCT_RETURN; |
duke@435 | 430 | |
duke@435 | 431 | // checked exceptions |
duke@435 | 432 | int checked_exceptions_length() const |
duke@435 | 433 | { return constMethod()->checked_exceptions_length(); } |
duke@435 | 434 | CheckedExceptionElement* checked_exceptions_start() const |
duke@435 | 435 | { return constMethod()->checked_exceptions_start(); } |
duke@435 | 436 | |
duke@435 | 437 | // localvariable table |
duke@435 | 438 | bool has_localvariable_table() const |
duke@435 | 439 | { return constMethod()->has_localvariable_table(); } |
duke@435 | 440 | int localvariable_table_length() const |
duke@435 | 441 | { return constMethod()->localvariable_table_length(); } |
duke@435 | 442 | LocalVariableTableElement* localvariable_table_start() const |
duke@435 | 443 | { return constMethod()->localvariable_table_start(); } |
duke@435 | 444 | |
duke@435 | 445 | bool has_linenumber_table() const |
duke@435 | 446 | { return constMethod()->has_linenumber_table(); } |
duke@435 | 447 | u_char* compressed_linenumber_table() const |
duke@435 | 448 | { return constMethod()->compressed_linenumber_table(); } |
duke@435 | 449 | |
duke@435 | 450 | // method holder (the klassOop holding this method) |
duke@435 | 451 | klassOop method_holder() const { return _constants->pool_holder(); } |
duke@435 | 452 | |
duke@435 | 453 | void compute_size_of_parameters(Thread *thread); // word size of parameters (receiver if any + arguments) |
coleenp@2497 | 454 | Symbol* klass_name() const; // returns the name of the method holder |
duke@435 | 455 | BasicType result_type() const; // type of the method result |
duke@435 | 456 | int result_type_index() const; // type index of the method result |
duke@435 | 457 | bool is_returning_oop() const { BasicType r = result_type(); return (r == T_OBJECT || r == T_ARRAY); } |
duke@435 | 458 | bool is_returning_fp() const { BasicType r = result_type(); return (r == T_FLOAT || r == T_DOUBLE); } |
duke@435 | 459 | |
duke@435 | 460 | // Checked exceptions thrown by this method (resolved to mirrors) |
duke@435 | 461 | objArrayHandle resolved_checked_exceptions(TRAPS) { return resolved_checked_exceptions_impl(this, THREAD); } |
duke@435 | 462 | |
duke@435 | 463 | // Access flags |
duke@435 | 464 | bool is_public() const { return access_flags().is_public(); } |
duke@435 | 465 | bool is_private() const { return access_flags().is_private(); } |
duke@435 | 466 | bool is_protected() const { return access_flags().is_protected(); } |
duke@435 | 467 | bool is_package_private() const { return !is_public() && !is_private() && !is_protected(); } |
duke@435 | 468 | bool is_static() const { return access_flags().is_static(); } |
duke@435 | 469 | bool is_final() const { return access_flags().is_final(); } |
duke@435 | 470 | bool is_synchronized() const { return access_flags().is_synchronized();} |
duke@435 | 471 | bool is_native() const { return access_flags().is_native(); } |
duke@435 | 472 | bool is_abstract() const { return access_flags().is_abstract(); } |
duke@435 | 473 | bool is_strict() const { return access_flags().is_strict(); } |
duke@435 | 474 | bool is_synthetic() const { return access_flags().is_synthetic(); } |
duke@435 | 475 | |
duke@435 | 476 | // returns true if contains only return operation |
duke@435 | 477 | bool is_empty_method() const; |
duke@435 | 478 | |
duke@435 | 479 | // returns true if this is a vanilla constructor |
duke@435 | 480 | bool is_vanilla_constructor() const; |
duke@435 | 481 | |
duke@435 | 482 | // checks method and its method holder |
duke@435 | 483 | bool is_final_method() const; |
duke@435 | 484 | bool is_strict_method() const; |
duke@435 | 485 | |
duke@435 | 486 | // true if method needs no dynamic dispatch (final and/or no vtable entry) |
duke@435 | 487 | bool can_be_statically_bound() const; |
duke@435 | 488 | |
duke@435 | 489 | // returns true if the method has any backward branches. |
duke@435 | 490 | bool has_loops() { |
duke@435 | 491 | return access_flags().loops_flag_init() ? access_flags().has_loops() : compute_has_loops_flag(); |
duke@435 | 492 | }; |
duke@435 | 493 | |
duke@435 | 494 | bool compute_has_loops_flag(); |
duke@435 | 495 | |
duke@435 | 496 | bool has_jsrs() { |
duke@435 | 497 | return access_flags().has_jsrs(); |
duke@435 | 498 | }; |
duke@435 | 499 | void set_has_jsrs() { |
duke@435 | 500 | _access_flags.set_has_jsrs(); |
duke@435 | 501 | } |
duke@435 | 502 | |
duke@435 | 503 | // returns true if the method has any monitors. |
duke@435 | 504 | bool has_monitors() const { return is_synchronized() || access_flags().has_monitor_bytecodes(); } |
duke@435 | 505 | bool has_monitor_bytecodes() const { return access_flags().has_monitor_bytecodes(); } |
duke@435 | 506 | |
duke@435 | 507 | void set_has_monitor_bytecodes() { _access_flags.set_has_monitor_bytecodes(); } |
duke@435 | 508 | |
duke@435 | 509 | // monitor matching. This returns a conservative estimate of whether the monitorenter/monitorexit bytecodes |
duke@435 | 510 | // propererly nest in the method. It might return false, even though they actually nest properly, since the info. |
duke@435 | 511 | // has not been computed yet. |
duke@435 | 512 | bool guaranteed_monitor_matching() const { return access_flags().is_monitor_matching(); } |
duke@435 | 513 | void set_guaranteed_monitor_matching() { _access_flags.set_monitor_matching(); } |
duke@435 | 514 | |
duke@435 | 515 | // returns true if the method is an accessor function (setter/getter). |
duke@435 | 516 | bool is_accessor() const; |
duke@435 | 517 | |
duke@435 | 518 | // returns true if the method is an initializer (<init> or <clinit>). |
duke@435 | 519 | bool is_initializer() const; |
duke@435 | 520 | |
kamg@2616 | 521 | // returns true if the method is static OR if the classfile version < 51 |
kamg@2616 | 522 | bool has_valid_initializer_flags() const; |
kamg@2616 | 523 | |
kamg@2616 | 524 | // returns true if the method name is <clinit> and the method has |
kamg@2616 | 525 | // valid static initializer flags. |
kamg@2616 | 526 | bool is_static_initializer() const; |
kamg@2616 | 527 | |
duke@435 | 528 | // compiled code support |
duke@435 | 529 | // NOTE: code() is inherently racy as deopt can be clearing code |
duke@435 | 530 | // simultaneously. Use with caution. |
duke@435 | 531 | bool has_compiled_code() const { return code() != NULL; } |
duke@435 | 532 | |
duke@435 | 533 | // sizing |
duke@435 | 534 | static int object_size(bool is_native); |
duke@435 | 535 | static int header_size() { return sizeof(methodOopDesc)/HeapWordSize; } |
duke@435 | 536 | int object_size() const { return method_size(); } |
duke@435 | 537 | |
duke@435 | 538 | bool object_is_parsable() const { return method_size() > 0; } |
duke@435 | 539 | |
duke@435 | 540 | // interpreter support |
duke@435 | 541 | static ByteSize const_offset() { return byte_offset_of(methodOopDesc, _constMethod ); } |
duke@435 | 542 | static ByteSize constants_offset() { return byte_offset_of(methodOopDesc, _constants ); } |
duke@435 | 543 | static ByteSize access_flags_offset() { return byte_offset_of(methodOopDesc, _access_flags ); } |
duke@435 | 544 | #ifdef CC_INTERP |
duke@435 | 545 | static ByteSize result_index_offset() { return byte_offset_of(methodOopDesc, _result_index ); } |
duke@435 | 546 | #endif /* CC_INTERP */ |
duke@435 | 547 | static ByteSize size_of_locals_offset() { return byte_offset_of(methodOopDesc, _max_locals ); } |
duke@435 | 548 | static ByteSize size_of_parameters_offset() { return byte_offset_of(methodOopDesc, _size_of_parameters); } |
duke@435 | 549 | static ByteSize from_compiled_offset() { return byte_offset_of(methodOopDesc, _from_compiled_entry); } |
duke@435 | 550 | static ByteSize code_offset() { return byte_offset_of(methodOopDesc, _code); } |
duke@435 | 551 | static ByteSize invocation_counter_offset() { return byte_offset_of(methodOopDesc, _invocation_counter); } |
duke@435 | 552 | static ByteSize backedge_counter_offset() { return byte_offset_of(methodOopDesc, _backedge_counter); } |
duke@435 | 553 | static ByteSize method_data_offset() { |
duke@435 | 554 | return byte_offset_of(methodOopDesc, _method_data); |
duke@435 | 555 | } |
duke@435 | 556 | static ByteSize interpreter_invocation_counter_offset() { return byte_offset_of(methodOopDesc, _interpreter_invocation_count); } |
duke@435 | 557 | #ifndef PRODUCT |
duke@435 | 558 | static ByteSize compiled_invocation_counter_offset() { return byte_offset_of(methodOopDesc, _compiled_invocation_count); } |
duke@435 | 559 | #endif // not PRODUCT |
duke@435 | 560 | static ByteSize native_function_offset() { return in_ByteSize(sizeof(methodOopDesc)); } |
duke@435 | 561 | static ByteSize from_interpreted_offset() { return byte_offset_of(methodOopDesc, _from_interpreted_entry ); } |
duke@435 | 562 | static ByteSize interpreter_entry_offset() { return byte_offset_of(methodOopDesc, _i2i_entry ); } |
duke@435 | 563 | static ByteSize signature_handler_offset() { return in_ByteSize(sizeof(methodOopDesc) + wordSize); } |
duke@435 | 564 | static ByteSize max_stack_offset() { return byte_offset_of(methodOopDesc, _max_stack ); } |
duke@435 | 565 | |
duke@435 | 566 | // for code generation |
duke@435 | 567 | static int method_data_offset_in_bytes() { return offset_of(methodOopDesc, _method_data); } |
duke@435 | 568 | static int interpreter_invocation_counter_offset_in_bytes() |
duke@435 | 569 | { return offset_of(methodOopDesc, _interpreter_invocation_count); } |
jrose@2148 | 570 | static int intrinsic_id_offset_in_bytes() { return offset_of(methodOopDesc, _intrinsic_id); } |
jrose@2148 | 571 | static int intrinsic_id_size_in_bytes() { return sizeof(u1); } |
duke@435 | 572 | |
duke@435 | 573 | // Static methods that are used to implement member methods where an exposed this pointer |
duke@435 | 574 | // is needed due to possible GCs |
duke@435 | 575 | static objArrayHandle resolved_checked_exceptions_impl(methodOop this_oop, TRAPS); |
duke@435 | 576 | |
duke@435 | 577 | // Returns the byte code index from the byte code pointer |
duke@435 | 578 | int bci_from(address bcp) const; |
duke@435 | 579 | address bcp_from(int bci) const; |
duke@435 | 580 | int validate_bci_from_bcx(intptr_t bcx) const; |
duke@435 | 581 | |
duke@435 | 582 | // Returns the line number for a bci if debugging information for the method is prowided, |
duke@435 | 583 | // -1 is returned otherwise. |
duke@435 | 584 | int line_number_from_bci(int bci) const; |
duke@435 | 585 | |
duke@435 | 586 | // Reflection support |
duke@435 | 587 | bool is_overridden_in(klassOop k) const; |
duke@435 | 588 | |
jrose@1145 | 589 | // JSR 292 support |
jrose@1145 | 590 | bool is_method_handle_invoke() const { return access_flags().is_method_handle_invoke(); } |
jrose@1862 | 591 | static bool is_method_handle_invoke_name(vmSymbols::SID name_sid); |
coleenp@2497 | 592 | static bool is_method_handle_invoke_name(Symbol* name) { |
jrose@1862 | 593 | return is_method_handle_invoke_name(vmSymbols::find_sid(name)); |
jrose@1862 | 594 | } |
twisti@1587 | 595 | // Tests if this method is an internal adapter frame from the |
twisti@1587 | 596 | // MethodHandleCompiler. |
twisti@1587 | 597 | bool is_method_handle_adapter() const; |
jrose@1145 | 598 | static methodHandle make_invoke_method(KlassHandle holder, |
coleenp@2497 | 599 | Symbol* name, //invokeExact or invokeGeneric |
coleenp@2497 | 600 | Symbol* signature, //anything at all |
jrose@1145 | 601 | Handle method_type, |
jrose@1145 | 602 | TRAPS); |
jrose@2982 | 603 | static klassOop check_non_bcp_klass(klassOop klass); |
jrose@1145 | 604 | // these operate only on invoke methods: |
jrose@1145 | 605 | oop method_handle_type() const; |
jrose@1145 | 606 | static jint* method_type_offsets_chain(); // series of pointer-offsets, terminated by -1 |
jrose@1145 | 607 | // presize interpreter frames for extra interpreter stack entries, if needed |
jrose@1161 | 608 | // method handles want to be able to push a few extra values (e.g., a bound receiver), and |
jrose@1161 | 609 | // invokedynamic sometimes needs to push a bootstrap method, call site, and arglist, |
jrose@1161 | 610 | // all without checking for a stack overflow |
twisti@2698 | 611 | static int extra_stack_entries() { return EnableInvokeDynamic ? (int) MethodHandlePushLimit + 3 : 0; } |
jrose@1145 | 612 | static int extra_stack_words(); // = extra_stack_entries() * Interpreter::stackElementSize() |
twisti@1587 | 613 | |
duke@435 | 614 | // RedefineClasses() support: |
duke@435 | 615 | bool is_old() const { return access_flags().is_old(); } |
duke@435 | 616 | void set_is_old() { _access_flags.set_is_old(); } |
duke@435 | 617 | bool is_obsolete() const { return access_flags().is_obsolete(); } |
duke@435 | 618 | void set_is_obsolete() { _access_flags.set_is_obsolete(); } |
dcubed@483 | 619 | // see the definition in methodOop.cpp for the gory details |
dcubed@483 | 620 | bool should_not_be_cached() const; |
duke@435 | 621 | |
duke@435 | 622 | // JVMTI Native method prefixing support: |
duke@435 | 623 | bool is_prefixed_native() const { return access_flags().is_prefixed_native(); } |
duke@435 | 624 | void set_is_prefixed_native() { _access_flags.set_is_prefixed_native(); } |
duke@435 | 625 | |
duke@435 | 626 | // Rewriting support |
duke@435 | 627 | static methodHandle clone_with_new_data(methodHandle m, u_char* new_code, int new_code_length, |
duke@435 | 628 | u_char* new_compressed_linenumber_table, int new_compressed_linenumber_size, TRAPS); |
duke@435 | 629 | |
duke@435 | 630 | // Get this method's jmethodID -- allocate if it doesn't exist |
duke@435 | 631 | jmethodID jmethod_id() { methodHandle this_h(this); |
dcubed@1412 | 632 | return instanceKlass::get_jmethod_id(method_holder(), this_h); } |
duke@435 | 633 | |
duke@435 | 634 | // Lookup the jmethodID for this method. Return NULL if not found. |
duke@435 | 635 | // NOTE that this function can be called from a signal handler |
duke@435 | 636 | // (see AsyncGetCallTrace support for Forte Analyzer) and this |
duke@435 | 637 | // needs to be async-safe. No allocation should be done and |
duke@435 | 638 | // so handles are not used to avoid deadlock. |
duke@435 | 639 | jmethodID find_jmethod_id_or_null() { return instanceKlass::cast(method_holder())->jmethod_id_or_null(this); } |
duke@435 | 640 | |
duke@435 | 641 | // JNI static invoke cached itable index accessors |
duke@435 | 642 | int cached_itable_index() { return instanceKlass::cast(method_holder())->cached_itable_index(method_idnum()); } |
duke@435 | 643 | void set_cached_itable_index(int index) { instanceKlass::cast(method_holder())->set_cached_itable_index(method_idnum(), index); } |
duke@435 | 644 | |
duke@435 | 645 | // Support for inlining of intrinsic methods |
jrose@1291 | 646 | vmIntrinsics::ID intrinsic_id() const { return (vmIntrinsics::ID) _intrinsic_id; } |
jrose@1291 | 647 | void set_intrinsic_id(vmIntrinsics::ID id) { _intrinsic_id = (u1) id; } |
jrose@1291 | 648 | |
jrose@1291 | 649 | // Helper routines for intrinsic_id() and vmIntrinsics::method(). |
jrose@1291 | 650 | void init_intrinsic_id(); // updates from _none if a match |
jrose@1291 | 651 | static vmSymbols::SID klass_id_for_intrinsics(klassOop holder); |
duke@435 | 652 | |
duke@435 | 653 | // On-stack replacement support |
iveresov@2138 | 654 | bool has_osr_nmethod(int level, bool match_level) { |
iveresov@2138 | 655 | return instanceKlass::cast(method_holder())->lookup_osr_nmethod(this, InvocationEntryBci, level, match_level) != NULL; |
iveresov@2138 | 656 | } |
iveresov@2138 | 657 | |
iveresov@2138 | 658 | nmethod* lookup_osr_nmethod_for(int bci, int level, bool match_level) { |
iveresov@2138 | 659 | return instanceKlass::cast(method_holder())->lookup_osr_nmethod(this, bci, level, match_level); |
iveresov@2138 | 660 | } |
duke@435 | 661 | |
duke@435 | 662 | // Inline cache support |
duke@435 | 663 | void cleanup_inline_caches(); |
duke@435 | 664 | |
duke@435 | 665 | // Find if klass for method is loaded |
duke@435 | 666 | bool is_klass_loaded_by_klass_index(int klass_index) const; |
duke@435 | 667 | bool is_klass_loaded(int refinfo_index, bool must_be_resolved = false) const; |
duke@435 | 668 | |
duke@435 | 669 | // Indicates whether compilation failed earlier for this method, or |
duke@435 | 670 | // whether it is not compilable for another reason like having a |
duke@435 | 671 | // breakpoint set in it. |
iveresov@2138 | 672 | bool is_not_compilable(int comp_level = CompLevel_any) const; |
iveresov@2138 | 673 | void set_not_compilable(int comp_level = CompLevel_all, bool report = true); |
iveresov@2138 | 674 | void set_not_compilable_quietly(int comp_level = CompLevel_all) { |
kvn@1643 | 675 | set_not_compilable(comp_level, false); |
kvn@1643 | 676 | } |
iveresov@2138 | 677 | bool is_not_osr_compilable(int comp_level = CompLevel_any) const { |
iveresov@2138 | 678 | return is_not_compilable(comp_level) || access_flags().is_not_osr_compilable(); |
iveresov@2138 | 679 | } |
iveresov@2138 | 680 | void set_not_osr_compilable() { _access_flags.set_not_osr_compilable(); } |
iveresov@2138 | 681 | bool is_not_c1_compilable() const { return access_flags().is_not_c1_compilable(); } |
iveresov@2138 | 682 | void set_not_c1_compilable() { _access_flags.set_not_c1_compilable(); } |
iveresov@2138 | 683 | bool is_not_c2_compilable() const { return access_flags().is_not_c2_compilable(); } |
iveresov@2138 | 684 | void set_not_c2_compilable() { _access_flags.set_not_c2_compilable(); } |
duke@435 | 685 | |
duke@435 | 686 | // Background compilation support |
iveresov@2138 | 687 | bool queued_for_compilation() const { return access_flags().queued_for_compilation(); } |
iveresov@2138 | 688 | void set_queued_for_compilation() { _access_flags.set_queued_for_compilation(); } |
iveresov@2138 | 689 | void clear_queued_for_compilation() { _access_flags.clear_queued_for_compilation(); } |
duke@435 | 690 | |
duke@435 | 691 | // Resolve all classes in signature, return 'true' if successful |
duke@435 | 692 | static bool load_signature_classes(methodHandle m, TRAPS); |
duke@435 | 693 | |
duke@435 | 694 | // Return if true if not all classes references in signature, including return type, has been loaded |
duke@435 | 695 | static bool has_unloaded_classes_in_signature(methodHandle m, TRAPS); |
duke@435 | 696 | |
duke@435 | 697 | // Printing |
duke@435 | 698 | void print_short_name(outputStream* st) /*PRODUCT_RETURN*/; // prints as klassname::methodname; Exposed so field engineers can debug VM |
duke@435 | 699 | void print_name(outputStream* st) PRODUCT_RETURN; // prints as "virtual void foo(int)" |
duke@435 | 700 | |
duke@435 | 701 | // Helper routine used for method sorting |
duke@435 | 702 | static void sort_methods(objArrayOop methods, |
duke@435 | 703 | objArrayOop methods_annotations, |
duke@435 | 704 | objArrayOop methods_parameter_annotations, |
duke@435 | 705 | objArrayOop methods_default_annotations, |
duke@435 | 706 | bool idempotent = false); |
duke@435 | 707 | |
duke@435 | 708 | // size of parameters |
duke@435 | 709 | void set_size_of_parameters(int size) { _size_of_parameters = size; } |
duke@435 | 710 | private: |
duke@435 | 711 | |
duke@435 | 712 | // Inlined elements |
duke@435 | 713 | address* native_function_addr() const { assert(is_native(), "must be native"); return (address*) (this+1); } |
duke@435 | 714 | address* signature_handler_addr() const { return native_function_addr() + 1; } |
duke@435 | 715 | |
duke@435 | 716 | // Garbage collection support |
duke@435 | 717 | oop* adr_constMethod() const { return (oop*)&_constMethod; } |
duke@435 | 718 | oop* adr_constants() const { return (oop*)&_constants; } |
duke@435 | 719 | oop* adr_method_data() const { return (oop*)&_method_data; } |
duke@435 | 720 | }; |
duke@435 | 721 | |
duke@435 | 722 | |
duke@435 | 723 | // Utility class for compressing line number tables |
duke@435 | 724 | |
duke@435 | 725 | class CompressedLineNumberWriteStream: public CompressedWriteStream { |
duke@435 | 726 | private: |
duke@435 | 727 | int _bci; |
duke@435 | 728 | int _line; |
duke@435 | 729 | public: |
duke@435 | 730 | // Constructor |
duke@435 | 731 | CompressedLineNumberWriteStream(int initial_size) : CompressedWriteStream(initial_size), _bci(0), _line(0) {} |
duke@435 | 732 | CompressedLineNumberWriteStream(u_char* buffer, int initial_size) : CompressedWriteStream(buffer, initial_size), _bci(0), _line(0) {} |
duke@435 | 733 | |
duke@435 | 734 | // Write (bci, line number) pair to stream |
duke@435 | 735 | void write_pair_regular(int bci_delta, int line_delta); |
duke@435 | 736 | |
duke@435 | 737 | inline void write_pair_inline(int bci, int line) { |
duke@435 | 738 | int bci_delta = bci - _bci; |
duke@435 | 739 | int line_delta = line - _line; |
duke@435 | 740 | _bci = bci; |
duke@435 | 741 | _line = line; |
duke@435 | 742 | // Skip (0,0) deltas - they do not add information and conflict with terminator. |
duke@435 | 743 | if (bci_delta == 0 && line_delta == 0) return; |
duke@435 | 744 | // Check if bci is 5-bit and line number 3-bit unsigned. |
duke@435 | 745 | if (((bci_delta & ~0x1F) == 0) && ((line_delta & ~0x7) == 0)) { |
duke@435 | 746 | // Compress into single byte. |
duke@435 | 747 | jubyte value = ((jubyte) bci_delta << 3) | (jubyte) line_delta; |
duke@435 | 748 | // Check that value doesn't match escape character. |
duke@435 | 749 | if (value != 0xFF) { |
duke@435 | 750 | write_byte(value); |
duke@435 | 751 | return; |
duke@435 | 752 | } |
duke@435 | 753 | } |
duke@435 | 754 | write_pair_regular(bci_delta, line_delta); |
duke@435 | 755 | } |
duke@435 | 756 | |
duke@435 | 757 | // Windows AMD64 + Apr 2005 PSDK with /O2 generates bad code for write_pair. |
duke@435 | 758 | // Disabling optimization doesn't work for methods in header files |
duke@435 | 759 | // so we force it to call through the non-optimized version in the .cpp. |
duke@435 | 760 | // It's gross, but it's the only way we can ensure that all callers are |
sla@2540 | 761 | // fixed. _MSC_VER is defined by the windows compiler |
sla@2540 | 762 | #if defined(_M_AMD64) && _MSC_VER >= 1400 |
duke@435 | 763 | void write_pair(int bci, int line); |
duke@435 | 764 | #else |
duke@435 | 765 | void write_pair(int bci, int line) { write_pair_inline(bci, line); } |
duke@435 | 766 | #endif |
duke@435 | 767 | |
duke@435 | 768 | // Write end-of-stream marker |
duke@435 | 769 | void write_terminator() { write_byte(0); } |
duke@435 | 770 | }; |
duke@435 | 771 | |
duke@435 | 772 | |
duke@435 | 773 | // Utility class for decompressing line number tables |
duke@435 | 774 | |
duke@435 | 775 | class CompressedLineNumberReadStream: public CompressedReadStream { |
duke@435 | 776 | private: |
duke@435 | 777 | int _bci; |
duke@435 | 778 | int _line; |
duke@435 | 779 | public: |
duke@435 | 780 | // Constructor |
duke@435 | 781 | CompressedLineNumberReadStream(u_char* buffer); |
duke@435 | 782 | // Read (bci, line number) pair from stream. Returns false at end-of-stream. |
duke@435 | 783 | bool read_pair(); |
duke@435 | 784 | // Accessing bci and line number (after calling read_pair) |
duke@435 | 785 | int bci() const { return _bci; } |
duke@435 | 786 | int line() const { return _line; } |
duke@435 | 787 | }; |
duke@435 | 788 | |
duke@435 | 789 | |
duke@435 | 790 | /// Fast Breakpoints. |
duke@435 | 791 | |
duke@435 | 792 | // If this structure gets more complicated (because bpts get numerous), |
duke@435 | 793 | // move it into its own header. |
duke@435 | 794 | |
duke@435 | 795 | // There is presently no provision for concurrent access |
duke@435 | 796 | // to breakpoint lists, which is only OK for JVMTI because |
duke@435 | 797 | // breakpoints are written only at safepoints, and are read |
duke@435 | 798 | // concurrently only outside of safepoints. |
duke@435 | 799 | |
duke@435 | 800 | class BreakpointInfo : public CHeapObj { |
duke@435 | 801 | friend class VMStructs; |
duke@435 | 802 | private: |
duke@435 | 803 | Bytecodes::Code _orig_bytecode; |
duke@435 | 804 | int _bci; |
duke@435 | 805 | u2 _name_index; // of method |
duke@435 | 806 | u2 _signature_index; // of method |
duke@435 | 807 | BreakpointInfo* _next; // simple storage allocation |
duke@435 | 808 | |
duke@435 | 809 | public: |
duke@435 | 810 | BreakpointInfo(methodOop m, int bci); |
duke@435 | 811 | |
duke@435 | 812 | // accessors |
duke@435 | 813 | Bytecodes::Code orig_bytecode() { return _orig_bytecode; } |
duke@435 | 814 | void set_orig_bytecode(Bytecodes::Code code) { _orig_bytecode = code; } |
duke@435 | 815 | int bci() { return _bci; } |
duke@435 | 816 | |
duke@435 | 817 | BreakpointInfo* next() const { return _next; } |
duke@435 | 818 | void set_next(BreakpointInfo* n) { _next = n; } |
duke@435 | 819 | |
duke@435 | 820 | // helps for searchers |
never@2462 | 821 | bool match(const methodOopDesc* m, int bci) { |
duke@435 | 822 | return bci == _bci && match(m); |
duke@435 | 823 | } |
duke@435 | 824 | |
never@2462 | 825 | bool match(const methodOopDesc* m) { |
duke@435 | 826 | return _name_index == m->name_index() && |
duke@435 | 827 | _signature_index == m->signature_index(); |
duke@435 | 828 | } |
duke@435 | 829 | |
duke@435 | 830 | void set(methodOop method); |
duke@435 | 831 | void clear(methodOop method); |
duke@435 | 832 | }; |
stefank@2314 | 833 | |
stefank@2314 | 834 | #endif // SHARE_VM_OOPS_METHODOOP_HPP |