Mercurial > hg > truffle
annotate src/share/vm/oops/method.hpp @ 7287:76c9023ed438
Remove now useless prefix arguments for jtt unittests
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Thu, 20 Dec 2012 17:06:59 +0100 |
parents | 291ffc492eb6 |
children | 989155e2d07a |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_OOPS_METHODOOP_HPP |
26 #define SHARE_VM_OOPS_METHODOOP_HPP | |
27 | |
28 #include "classfile/vmSymbols.hpp" | |
29 #include "code/compressedStream.hpp" | |
30 #include "compiler/oopMap.hpp" | |
31 #include "interpreter/invocationCounter.hpp" | |
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32 #include "oops/annotations.hpp" |
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33 #include "oops/constantPool.hpp" |
1972 | 34 #include "oops/instanceKlass.hpp" |
35 #include "oops/oop.hpp" | |
36 #include "oops/typeArrayOop.hpp" | |
37 #include "utilities/accessFlags.hpp" | |
38 #include "utilities/growableArray.hpp" | |
39 | |
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40 // A Method* represents a Java method. |
0 | 41 // |
42 // Memory layout (each line represents a word). Note that most applications load thousands of methods, | |
43 // so keeping the size of this structure small has a big impact on footprint. | |
44 // | |
45 // We put all oops and method_size first for better gc cache locality. | |
46 // | |
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47 // The actual bytecodes are inlined after the end of the Method struct. |
0 | 48 // |
49 // There are bits in the access_flags telling whether inlined tables are present. | |
50 // Note that accessing the line number and local variable tables is not performance critical at all. | |
51 // Accessing the checked exceptions table is used by reflection, so we put that last to make access | |
52 // to it fast. | |
53 // | |
54 // The line number table is compressed and inlined following the byte codes. It is found as the first | |
55 // byte following the byte codes. The checked exceptions table and the local variable table are inlined | |
56 // after the line number table, and indexed from the end of the method. We do not compress the checked | |
57 // exceptions table since the average length is less than 2, and do not bother to compress the local | |
58 // variable table either since it is mostly absent. | |
59 // | |
60 // Note that native_function and signature_handler has to be at fixed offsets (required by the interpreter) | |
61 // | |
62 // |------------------------------------------------------| | |
63 // | header | | |
64 // | klass | | |
65 // |------------------------------------------------------| | |
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66 // | ConstMethod* (oop) | |
0 | 67 // |------------------------------------------------------| |
68 // | methodData (oop) | | |
69 // | interp_invocation_count | | |
70 // |------------------------------------------------------| | |
71 // | access_flags | | |
72 // | vtable_index | | |
73 // |------------------------------------------------------| | |
74 // | result_index (C++ interpreter only) | | |
75 // |------------------------------------------------------| | |
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76 // | method_size | max_locals | |
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77 // | size_of_parameters | intrinsic_id| flags | |
0 | 78 // |------------------------------------------------------| |
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79 // | throwout_count | num_breakpoints | |
0 | 80 // |------------------------------------------------------| |
81 // | invocation_counter | | |
82 // | backedge_counter | | |
83 // |------------------------------------------------------| | |
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84 // | prev_time (tiered only, 64 bit wide) | |
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85 // | | |
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86 // |------------------------------------------------------| |
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87 // | rate (tiered) | |
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88 // |------------------------------------------------------| |
0 | 89 // | code (pointer) | |
90 // | i2i (pointer) | | |
91 // | adapter (pointer) | | |
92 // | from_compiled_entry (pointer) | | |
93 // | from_interpreted_entry (pointer) | | |
94 // |------------------------------------------------------| | |
95 // | native_function (present only if native) | | |
96 // | signature_handler (present only if native) | | |
97 // |------------------------------------------------------| | |
98 | |
99 | |
100 class CheckedExceptionElement; | |
101 class LocalVariableTableElement; | |
102 class AdapterHandlerEntry; | |
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103 class MethodData; |
6934 | 104 class ConstMethod; |
0 | 105 |
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106 class Method : public Metadata { |
0 | 107 friend class VMStructs; |
108 private: | |
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109 ConstMethod* _constMethod; // Method read-only data. |
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110 MethodData* _method_data; |
1783 | 111 int _interpreter_invocation_count; // Count of times invoked (reused as prev_event_count in tiered) |
0 | 112 AccessFlags _access_flags; // Access flags |
113 int _vtable_index; // vtable index of this method (see VtableIndexFlag) | |
114 // note: can have vtables with >2**16 elements (because of inheritance) | |
115 #ifdef CC_INTERP | |
116 int _result_index; // C++ interpreter needs for converting results to/from stack | |
117 #endif | |
118 u2 _method_size; // size of this object | |
119 u2 _max_locals; // Number of local variables used by this method | |
120 u2 _size_of_parameters; // size of the parameter block (receiver + arguments) in words | |
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121 u1 _intrinsic_id; // vmSymbols::intrinsic_id (0 == _none) |
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122 u1 _jfr_towrite : 1, // Flags |
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123 _force_inline : 1, |
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124 _hidden : 1, |
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125 _dont_inline : 1, |
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126 : 4; |
0 | 127 u2 _interpreter_throwout_count; // Count of times method was exited via exception while interpreting |
128 u2 _number_of_breakpoints; // fullspeed debugging support | |
129 InvocationCounter _invocation_counter; // Incremented before each activation of the method - used to trigger frequency-based optimizations | |
130 InvocationCounter _backedge_counter; // Incremented before each backedge taken - used to trigger frequencey-based optimizations | |
1783 | 131 |
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132 #ifdef GRAAL |
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133 jlong _graal_invocation_time; |
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134 int _graal_priority; |
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135 #endif |
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136 #ifdef TIERED |
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137 jlong _prev_time; // Previous time the rate was acquired |
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138 float _rate; // Events (invocation and backedge counter increments) per millisecond |
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139 #endif |
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140 |
0 | 141 #ifndef PRODUCT |
142 int _compiled_invocation_count; // Number of nmethod invocations so far (for perf. debugging) | |
143 #endif | |
144 // Entry point for calling both from and to the interpreter. | |
145 address _i2i_entry; // All-args-on-stack calling convention | |
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146 // Adapter blob (i2c/c2i) for this Method*. Set once when method is linked. |
0 | 147 AdapterHandlerEntry* _adapter; |
148 // Entry point for calling from compiled code, to compiled code if it exists | |
149 // or else the interpreter. | |
150 volatile address _from_compiled_entry; // Cache of: _code ? _code->entry_point() : _adapter->c2i_entry() | |
151 // The entry point for calling both from and to compiled code is | |
152 // "_code->entry_point()". Because of tiered compilation and de-opt, this | |
153 // field can come and go. It can transition from NULL to not-null at any | |
154 // time (whenever a compile completes). It can transition from not-null to | |
155 // NULL only at safepoints (because of a de-opt). | |
156 nmethod* volatile _code; // Points to the corresponding piece of native code | |
157 volatile address _from_interpreted_entry; // Cache of _code ? _adapter->i2c_entry() : _i2i_entry | |
158 | |
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159 // Constructor |
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160 Method(ConstMethod* xconst, AccessFlags access_flags, int size); |
0 | 161 public: |
6934 | 162 |
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163 static Method* allocate(ClassLoaderData* loader_data, |
6934 | 164 int byte_code_size, |
165 AccessFlags access_flags, | |
166 int compressed_line_number_size, | |
167 int localvariable_table_length, | |
168 int exception_table_length, | |
169 int checked_exceptions_length, | |
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170 u2 generic_signature_index, |
6934 | 171 ConstMethod::MethodType method_type, |
172 TRAPS); | |
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173 |
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174 // CDS and vtbl checking can create an empty Method to get vtbl pointer. |
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175 Method(){} |
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176 |
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177 // The Method vtable is restored by this call when the Method is in the |
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178 // shared archive. See patch_klass_vtables() in metaspaceShared.cpp for |
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179 // all the gory details. SA, dtrace and pstack helpers distinguish metadata |
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180 // by their vtable. |
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181 void restore_vtable() { guarantee(is_method(), "vtable restored by this call"); } |
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182 bool is_method() const volatile { return true; } |
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183 |
0 | 184 // accessors for instance variables |
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185 |
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186 ConstMethod* constMethod() const { return _constMethod; } |
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187 void set_constMethod(ConstMethod* xconst) { _constMethod = xconst; } |
0 | 188 |
189 | |
190 static address make_adapters(methodHandle mh, TRAPS); | |
191 volatile address from_compiled_entry() const { return (address)OrderAccess::load_ptr_acquire(&_from_compiled_entry); } | |
192 volatile address from_interpreted_entry() const{ return (address)OrderAccess::load_ptr_acquire(&_from_interpreted_entry); } | |
193 | |
194 // access flag | |
195 AccessFlags access_flags() const { return _access_flags; } | |
196 void set_access_flags(AccessFlags flags) { _access_flags = flags; } | |
197 | |
198 // name | |
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199 Symbol* name() const { return constants()->symbol_at(name_index()); } |
0 | 200 int name_index() const { return constMethod()->name_index(); } |
201 void set_name_index(int index) { constMethod()->set_name_index(index); } | |
202 | |
203 // signature | |
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204 Symbol* signature() const { return constants()->symbol_at(signature_index()); } |
0 | 205 int signature_index() const { return constMethod()->signature_index(); } |
206 void set_signature_index(int index) { constMethod()->set_signature_index(index); } | |
207 | |
208 // generics support | |
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209 Symbol* generic_signature() const { int idx = generic_signature_index(); return ((idx != 0) ? constants()->symbol_at(idx) : (Symbol*)NULL); } |
0 | 210 int generic_signature_index() const { return constMethod()->generic_signature_index(); } |
211 void set_generic_signature_index(int index) { constMethod()->set_generic_signature_index(index); } | |
212 | |
213 // annotations support | |
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214 AnnotationArray* annotations() const { |
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215 InstanceKlass* ik = method_holder(); |
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216 if (ik->annotations() == NULL) { |
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217 return NULL; |
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218 } |
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219 return ik->annotations()->get_method_annotations_of(method_idnum()); |
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220 } |
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221 AnnotationArray* parameter_annotations() const { |
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222 InstanceKlass* ik = method_holder(); |
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223 if (ik->annotations() == NULL) { |
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224 return NULL; |
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225 } |
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226 return ik->annotations()->get_method_parameter_annotations_of(method_idnum()); |
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227 } |
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228 AnnotationArray* annotation_default() const { |
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229 InstanceKlass* ik = method_holder(); |
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230 if (ik->annotations() == NULL) { |
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231 return NULL; |
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232 } |
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233 return ik->annotations()->get_method_default_annotations_of(method_idnum()); |
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234 } |
0 | 235 |
236 #ifdef CC_INTERP | |
237 void set_result_index(BasicType type); | |
238 int result_index() { return _result_index; } | |
239 #endif | |
240 | |
241 // Helper routine: get klass name + "." + method name + signature as | |
242 // C string, for the purpose of providing more useful NoSuchMethodErrors | |
243 // and fatal error handling. The string is allocated in resource | |
244 // area if a buffer is not provided by the caller. | |
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245 char* name_and_sig_as_C_string() const; |
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246 char* name_and_sig_as_C_string(char* buf, int size) const; |
0 | 247 |
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248 // Static routine in the situations we don't have a Method* |
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249 static char* name_and_sig_as_C_string(Klass* klass, Symbol* method_name, Symbol* signature); |
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250 static char* name_and_sig_as_C_string(Klass* klass, Symbol* method_name, Symbol* signature, char* buf, int size); |
0 | 251 |
2142 | 252 Bytecodes::Code java_code_at(int bci) const { |
253 return Bytecodes::java_code_at(this, bcp_from(bci)); | |
254 } | |
255 Bytecodes::Code code_at(int bci) const { | |
256 return Bytecodes::code_at(this, bcp_from(bci)); | |
257 } | |
258 | |
0 | 259 // JVMTI breakpoints |
2142 | 260 Bytecodes::Code orig_bytecode_at(int bci) const; |
0 | 261 void set_orig_bytecode_at(int bci, Bytecodes::Code code); |
262 void set_breakpoint(int bci); | |
263 void clear_breakpoint(int bci); | |
264 void clear_all_breakpoints(); | |
265 // Tracking number of breakpoints, for fullspeed debugging. | |
266 // Only mutated by VM thread. | |
267 u2 number_of_breakpoints() const { return _number_of_breakpoints; } | |
268 void incr_number_of_breakpoints() { ++_number_of_breakpoints; } | |
269 void decr_number_of_breakpoints() { --_number_of_breakpoints; } | |
270 // Initialization only | |
271 void clear_number_of_breakpoints() { _number_of_breakpoints = 0; } | |
272 | |
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273 // index into InstanceKlass methods() array |
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274 // note: also used by jfr |
0 | 275 u2 method_idnum() const { return constMethod()->method_idnum(); } |
276 void set_method_idnum(u2 idnum) { constMethod()->set_method_idnum(idnum); } | |
277 | |
278 // code size | |
279 int code_size() const { return constMethod()->code_size(); } | |
280 | |
281 // method size | |
282 int method_size() const { return _method_size; } | |
283 void set_method_size(int size) { | |
284 assert(0 <= size && size < (1 << 16), "invalid method size"); | |
285 _method_size = size; | |
286 } | |
287 | |
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288 // constant pool for Klass* holding this method |
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289 ConstantPool* constants() const { return constMethod()->constants(); } |
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290 void set_constants(ConstantPool* c) { constMethod()->set_constants(c); } |
0 | 291 |
292 // max stack | |
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293 // return original max stack size for method verification |
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294 int verifier_max_stack() const { return constMethod()->max_stack(); } |
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295 int max_stack() const { return constMethod()->max_stack() + extra_stack_entries(); } |
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296 void set_max_stack(int size) { constMethod()->set_max_stack(size); } |
0 | 297 |
298 // max locals | |
299 int max_locals() const { return _max_locals; } | |
300 void set_max_locals(int size) { _max_locals = size; } | |
1783 | 301 |
302 int highest_comp_level() const; | |
303 void set_highest_comp_level(int level); | |
304 int highest_osr_comp_level() const; | |
305 void set_highest_osr_comp_level(int level); | |
0 | 306 |
307 // Count of times method was exited via exception while interpreting | |
308 void interpreter_throwout_increment() { | |
309 if (_interpreter_throwout_count < 65534) { | |
310 _interpreter_throwout_count++; | |
311 } | |
312 } | |
313 | |
314 int interpreter_throwout_count() const { return _interpreter_throwout_count; } | |
315 void set_interpreter_throwout_count(int count) { _interpreter_throwout_count = count; } | |
316 | |
317 // size of parameters | |
318 int size_of_parameters() const { return _size_of_parameters; } | |
319 | |
320 bool has_stackmap_table() const { | |
321 return constMethod()->has_stackmap_table(); | |
322 } | |
323 | |
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324 Array<u1>* stackmap_data() const { |
0 | 325 return constMethod()->stackmap_data(); |
326 } | |
327 | |
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328 void set_stackmap_data(Array<u1>* sd) { |
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329 constMethod()->set_stackmap_data(sd); |
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330 } |
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331 |
0 | 332 // exception handler table |
333 bool has_exception_handler() const | |
334 { return constMethod()->has_exception_handler(); } | |
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335 int exception_table_length() const |
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336 { return constMethod()->exception_table_length(); } |
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337 ExceptionTableElement* exception_table_start() const |
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338 { return constMethod()->exception_table_start(); } |
0 | 339 |
340 // Finds the first entry point bci of an exception handler for an | |
341 // exception of klass ex_klass thrown at throw_bci. A value of NULL | |
342 // for ex_klass indicates that the exception klass is not known; in | |
343 // this case it matches any constraint class. Returns -1 if the | |
344 // exception cannot be handled in this method. The handler | |
345 // constraint classes are loaded if necessary. Note that this may | |
346 // throw an exception if loading of the constraint classes causes | |
347 // an IllegalAccessError (bugid 4307310) or an OutOfMemoryError. | |
348 // If an exception is thrown, returns the bci of the | |
349 // exception handler which caused the exception to be thrown, which | |
350 // is needed for proper retries. See, for example, | |
351 // InterpreterRuntime::exception_handler_for_exception. | |
352 int fast_exception_handler_bci_for(KlassHandle ex_klass, int throw_bci, TRAPS); | |
353 | |
354 // method data access | |
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355 MethodData* method_data() const { |
0 | 356 return _method_data; |
357 } | |
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358 void set_method_data(MethodData* data) { |
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359 _method_data = data; |
0 | 360 } |
361 | |
362 // invocation counter | |
1783 | 363 InvocationCounter* invocation_counter() { return &_invocation_counter; } |
364 InvocationCounter* backedge_counter() { return &_backedge_counter; } | |
365 | |
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366 #ifdef TIERED |
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367 // We are reusing interpreter_invocation_count as a holder for the previous event count! |
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368 // We can do that since interpreter_invocation_count is not used in tiered. |
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369 int prev_event_count() const { return _interpreter_invocation_count; } |
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370 void set_prev_event_count(int count) { _interpreter_invocation_count = count; } |
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371 jlong prev_time() const { return _prev_time; } |
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372 void set_prev_time(jlong time) { _prev_time = time; } |
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373 float rate() const { return _rate; } |
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374 void set_rate(float rate) { _rate = rate; } |
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375 #endif |
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376 |
1783 | 377 int invocation_count(); |
378 int backedge_count(); | |
379 | |
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380 #ifdef GRAAL |
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381 void set_graal_invocation_time(jlong time) { _graal_invocation_time = time; } |
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382 jlong graal_invocation_time() { return _graal_invocation_time; } |
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383 |
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384 void set_graal_priority(int prio) { _graal_priority = prio; } |
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385 int graal_priority() { return _graal_priority; } |
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386 #endif // GRAAL |
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387 |
1783 | 388 bool was_executed_more_than(int n); |
389 bool was_never_executed() { return !was_executed_more_than(0); } | |
0 | 390 |
391 static void build_interpreter_method_data(methodHandle method, TRAPS); | |
392 | |
1783 | 393 int interpreter_invocation_count() { |
394 if (TieredCompilation) return invocation_count(); | |
395 else return _interpreter_invocation_count; | |
396 } | |
0 | 397 void set_interpreter_invocation_count(int count) { _interpreter_invocation_count = count; } |
1783 | 398 int increment_interpreter_invocation_count() { |
399 if (TieredCompilation) ShouldNotReachHere(); | |
400 return ++_interpreter_invocation_count; | |
401 } | |
0 | 402 |
403 #ifndef PRODUCT | |
1783 | 404 int compiled_invocation_count() const { return _compiled_invocation_count; } |
0 | 405 void set_compiled_invocation_count(int count) { _compiled_invocation_count = count; } |
406 #endif // not PRODUCT | |
407 | |
605 | 408 // Clear (non-shared space) pointers which could not be relevant |
0 | 409 // if this (shared) method were mapped into another JVM. |
410 void remove_unshareable_info(); | |
411 | |
412 // nmethod/verified compiler entry | |
413 address verified_code_entry(); | |
414 bool check_code() const; // Not inline to avoid circular ref | |
415 nmethod* volatile code() const { assert( check_code(), "" ); return (nmethod *)OrderAccess::load_ptr_acquire(&_code); } | |
416 void clear_code(); // Clear out any compiled code | |
1202 | 417 static void set_code(methodHandle mh, nmethod* code); |
0 | 418 void set_adapter_entry(AdapterHandlerEntry* adapter) { _adapter = adapter; } |
419 address get_i2c_entry(); | |
420 address get_c2i_entry(); | |
421 address get_c2i_unverified_entry(); | |
422 AdapterHandlerEntry* adapter() { return _adapter; } | |
423 // setup entry points | |
424 void link_method(methodHandle method, TRAPS); | |
425 // clear entry points. Used by sharing code | |
426 void unlink_method(); | |
427 | |
428 // vtable index | |
429 enum VtableIndexFlag { | |
430 // Valid vtable indexes are non-negative (>= 0). | |
431 // These few negative values are used as sentinels. | |
710 | 432 highest_unused_vtable_index_value = -5, |
0 | 433 invalid_vtable_index = -4, // distinct from any valid vtable index |
434 garbage_vtable_index = -3, // not yet linked; no vtable layout yet | |
435 nonvirtual_vtable_index = -2 // there is no need for vtable dispatch | |
436 // 6330203 Note: Do not use -1, which was overloaded with many meanings. | |
437 }; | |
438 DEBUG_ONLY(bool valid_vtable_index() const { return _vtable_index >= nonvirtual_vtable_index; }) | |
439 int vtable_index() const { assert(valid_vtable_index(), ""); | |
440 return _vtable_index; } | |
441 void set_vtable_index(int index) { _vtable_index = index; } | |
442 | |
443 // interpreter entry | |
444 address interpreter_entry() const { return _i2i_entry; } | |
445 // Only used when first initialize so we can set _i2i_entry and _from_interpreted_entry | |
446 void set_interpreter_entry(address entry) { _i2i_entry = entry; _from_interpreted_entry = entry; } | |
447 int interpreter_kind(void) { | |
448 return constMethod()->interpreter_kind(); | |
449 } | |
450 void set_interpreter_kind(); | |
451 void set_interpreter_kind(int kind) { | |
452 constMethod()->set_interpreter_kind(kind); | |
453 } | |
454 | |
455 // native function (used for native methods only) | |
456 enum { | |
457 native_bind_event_is_interesting = true | |
458 }; | |
459 address native_function() const { return *(native_function_addr()); } | |
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460 address critical_native_function(); |
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461 |
0 | 462 // Must specify a real function (not NULL). |
463 // Use clear_native_function() to unregister. | |
464 void set_native_function(address function, bool post_event_flag); | |
465 bool has_native_function() const; | |
466 void clear_native_function(); | |
467 | |
468 // signature handler (used for native methods only) | |
469 address signature_handler() const { return *(signature_handler_addr()); } | |
470 void set_signature_handler(address handler); | |
471 | |
472 // Interpreter oopmap support | |
473 void mask_for(int bci, InterpreterOopMap* mask); | |
474 | |
475 #ifndef PRODUCT | |
476 // operations on invocation counter | |
1783 | 477 void print_invocation_count(); |
0 | 478 #endif |
479 | |
480 // byte codes | |
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481 void set_code(address code) { return constMethod()->set_code(code); } |
0 | 482 address code_base() const { return constMethod()->code_base(); } |
483 bool contains(address bcp) const { return constMethod()->contains(bcp); } | |
484 | |
485 // prints byte codes | |
486 void print_codes() const { print_codes_on(tty); } | |
487 void print_codes_on(outputStream* st) const PRODUCT_RETURN; | |
488 void print_codes_on(int from, int to, outputStream* st) const PRODUCT_RETURN; | |
489 | |
490 // checked exceptions | |
491 int checked_exceptions_length() const | |
492 { return constMethod()->checked_exceptions_length(); } | |
493 CheckedExceptionElement* checked_exceptions_start() const | |
494 { return constMethod()->checked_exceptions_start(); } | |
495 | |
496 // localvariable table | |
497 bool has_localvariable_table() const | |
498 { return constMethod()->has_localvariable_table(); } | |
499 int localvariable_table_length() const | |
500 { return constMethod()->localvariable_table_length(); } | |
501 LocalVariableTableElement* localvariable_table_start() const | |
502 { return constMethod()->localvariable_table_start(); } | |
503 | |
504 bool has_linenumber_table() const | |
505 { return constMethod()->has_linenumber_table(); } | |
506 u_char* compressed_linenumber_table() const | |
507 { return constMethod()->compressed_linenumber_table(); } | |
508 | |
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509 // method holder (the Klass* holding this method) |
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510 InstanceKlass* method_holder() const { return constants()->pool_holder(); } |
0 | 511 |
512 void compute_size_of_parameters(Thread *thread); // word size of parameters (receiver if any + arguments) | |
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513 Symbol* klass_name() const; // returns the name of the method holder |
0 | 514 BasicType result_type() const; // type of the method result |
515 int result_type_index() const; // type index of the method result | |
516 bool is_returning_oop() const { BasicType r = result_type(); return (r == T_OBJECT || r == T_ARRAY); } | |
517 bool is_returning_fp() const { BasicType r = result_type(); return (r == T_FLOAT || r == T_DOUBLE); } | |
518 | |
519 // Checked exceptions thrown by this method (resolved to mirrors) | |
520 objArrayHandle resolved_checked_exceptions(TRAPS) { return resolved_checked_exceptions_impl(this, THREAD); } | |
521 | |
522 // Access flags | |
523 bool is_public() const { return access_flags().is_public(); } | |
524 bool is_private() const { return access_flags().is_private(); } | |
525 bool is_protected() const { return access_flags().is_protected(); } | |
526 bool is_package_private() const { return !is_public() && !is_private() && !is_protected(); } | |
527 bool is_static() const { return access_flags().is_static(); } | |
528 bool is_final() const { return access_flags().is_final(); } | |
529 bool is_synchronized() const { return access_flags().is_synchronized();} | |
530 bool is_native() const { return access_flags().is_native(); } | |
531 bool is_abstract() const { return access_flags().is_abstract(); } | |
532 bool is_strict() const { return access_flags().is_strict(); } | |
533 bool is_synthetic() const { return access_flags().is_synthetic(); } | |
534 | |
535 // returns true if contains only return operation | |
536 bool is_empty_method() const; | |
537 | |
538 // returns true if this is a vanilla constructor | |
539 bool is_vanilla_constructor() const; | |
540 | |
541 // checks method and its method holder | |
542 bool is_final_method() const; | |
543 bool is_strict_method() const; | |
544 | |
545 // true if method needs no dynamic dispatch (final and/or no vtable entry) | |
546 bool can_be_statically_bound() const; | |
547 | |
548 // returns true if the method has any backward branches. | |
549 bool has_loops() { | |
550 return access_flags().loops_flag_init() ? access_flags().has_loops() : compute_has_loops_flag(); | |
551 }; | |
552 | |
553 bool compute_has_loops_flag(); | |
554 | |
555 bool has_jsrs() { | |
556 return access_flags().has_jsrs(); | |
557 }; | |
558 void set_has_jsrs() { | |
559 _access_flags.set_has_jsrs(); | |
560 } | |
561 | |
562 // returns true if the method has any monitors. | |
563 bool has_monitors() const { return is_synchronized() || access_flags().has_monitor_bytecodes(); } | |
564 bool has_monitor_bytecodes() const { return access_flags().has_monitor_bytecodes(); } | |
565 | |
566 void set_has_monitor_bytecodes() { _access_flags.set_has_monitor_bytecodes(); } | |
567 | |
568 // monitor matching. This returns a conservative estimate of whether the monitorenter/monitorexit bytecodes | |
569 // propererly nest in the method. It might return false, even though they actually nest properly, since the info. | |
570 // has not been computed yet. | |
571 bool guaranteed_monitor_matching() const { return access_flags().is_monitor_matching(); } | |
572 void set_guaranteed_monitor_matching() { _access_flags.set_monitor_matching(); } | |
573 | |
574 // returns true if the method is an accessor function (setter/getter). | |
575 bool is_accessor() const; | |
576 | |
577 // returns true if the method is an initializer (<init> or <clinit>). | |
578 bool is_initializer() const; | |
579 | |
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580 // returns true if the method is static OR if the classfile version < 51 |
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581 bool has_valid_initializer_flags() const; |
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582 |
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583 // returns true if the method name is <clinit> and the method has |
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584 // valid static initializer flags. |
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585 bool is_static_initializer() const; |
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586 |
0 | 587 // compiled code support |
588 // NOTE: code() is inherently racy as deopt can be clearing code | |
589 // simultaneously. Use with caution. | |
590 bool has_compiled_code() const { return code() != NULL; } | |
591 | |
592 // sizing | |
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593 static int header_size() { return sizeof(Method)/HeapWordSize; } |
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594 static int size(bool is_native); |
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595 int size() const { return method_size(); } |
0 | 596 |
597 // interpreter support | |
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598 static ByteSize const_offset() { return byte_offset_of(Method, _constMethod ); } |
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599 static ByteSize access_flags_offset() { return byte_offset_of(Method, _access_flags ); } |
0 | 600 #ifdef CC_INTERP |
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601 static ByteSize result_index_offset() { return byte_offset_of(Method, _result_index ); } |
0 | 602 #endif /* CC_INTERP */ |
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603 static ByteSize size_of_locals_offset() { return byte_offset_of(Method, _max_locals ); } |
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604 static ByteSize size_of_parameters_offset() { return byte_offset_of(Method, _size_of_parameters); } |
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605 static ByteSize from_compiled_offset() { return byte_offset_of(Method, _from_compiled_entry); } |
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606 static ByteSize code_offset() { return byte_offset_of(Method, _code); } |
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607 static ByteSize invocation_counter_offset() { return byte_offset_of(Method, _invocation_counter); } |
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608 static ByteSize backedge_counter_offset() { return byte_offset_of(Method, _backedge_counter); } |
0 | 609 static ByteSize method_data_offset() { |
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610 return byte_offset_of(Method, _method_data); |
0 | 611 } |
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612 static ByteSize interpreter_invocation_counter_offset() { return byte_offset_of(Method, _interpreter_invocation_count); } |
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613 #ifdef GRAAL |
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614 static ByteSize graal_invocation_time_offset() { return byte_offset_of(Method, _graal_invocation_time); } |
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615 static ByteSize graal_priority_offset() { return byte_offset_of(Method, _graal_priority); } |
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616 #endif |
0 | 617 #ifndef PRODUCT |
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618 static ByteSize compiled_invocation_counter_offset() { return byte_offset_of(Method, _compiled_invocation_count); } |
0 | 619 #endif // not PRODUCT |
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620 static ByteSize native_function_offset() { return in_ByteSize(sizeof(Method)); } |
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621 static ByteSize from_interpreted_offset() { return byte_offset_of(Method, _from_interpreted_entry ); } |
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622 static ByteSize interpreter_entry_offset() { return byte_offset_of(Method, _i2i_entry ); } |
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623 static ByteSize signature_handler_offset() { return in_ByteSize(sizeof(Method) + wordSize); } |
0 | 624 |
625 // for code generation | |
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626 static int method_data_offset_in_bytes() { return offset_of(Method, _method_data); } |
0 | 627 static int interpreter_invocation_counter_offset_in_bytes() |
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628 { return offset_of(Method, _interpreter_invocation_count); } |
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629 static int intrinsic_id_offset_in_bytes() { return offset_of(Method, _intrinsic_id); } |
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630 static int intrinsic_id_size_in_bytes() { return sizeof(u1); } |
0 | 631 |
632 // Static methods that are used to implement member methods where an exposed this pointer | |
633 // is needed due to possible GCs | |
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634 static objArrayHandle resolved_checked_exceptions_impl(Method* this_oop, TRAPS); |
0 | 635 |
636 // Returns the byte code index from the byte code pointer | |
637 int bci_from(address bcp) const; | |
638 address bcp_from(int bci) const; | |
639 int validate_bci_from_bcx(intptr_t bcx) const; | |
640 | |
641 // Returns the line number for a bci if debugging information for the method is prowided, | |
642 // -1 is returned otherwise. | |
643 int line_number_from_bci(int bci) const; | |
644 | |
645 // Reflection support | |
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646 bool is_overridden_in(Klass* k) const; |
0 | 647 |
710 | 648 // JSR 292 support |
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649 bool is_method_handle_intrinsic() const; // MethodHandles::is_signature_polymorphic_intrinsic(intrinsic_id) |
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650 bool is_compiled_lambda_form() const; // intrinsic_id() == vmIntrinsics::_compiledLambdaForm |
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651 bool has_member_arg() const; // intrinsic_id() == vmIntrinsics::_linkToSpecial, etc. |
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652 static methodHandle make_method_handle_intrinsic(vmIntrinsics::ID iid, // _invokeBasic, _linkToVirtual |
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653 Symbol* signature, //anything at all |
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654 TRAPS); |
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655 static Klass* check_non_bcp_klass(Klass* klass); |
710 | 656 // these operate only on invoke methods: |
657 // presize interpreter frames for extra interpreter stack entries, if needed | |
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658 // method handles want to be able to push a few extra values (e.g., a bound receiver), and |
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659 // invokedynamic sometimes needs to push a bootstrap method, call site, and arglist, |
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660 // all without checking for a stack overflow |
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661 static int extra_stack_entries() { return EnableInvokeDynamic ? 2 : 0; } |
710 | 662 static int extra_stack_words(); // = extra_stack_entries() * Interpreter::stackElementSize() |
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663 |
0 | 664 // RedefineClasses() support: |
665 bool is_old() const { return access_flags().is_old(); } | |
666 void set_is_old() { _access_flags.set_is_old(); } | |
667 bool is_obsolete() const { return access_flags().is_obsolete(); } | |
668 void set_is_obsolete() { _access_flags.set_is_obsolete(); } | |
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669 bool on_stack() const { return access_flags().on_stack(); } |
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670 void set_on_stack(const bool value); |
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671 |
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672 // see the definition in Method*.cpp for the gory details |
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673 bool should_not_be_cached() const; |
0 | 674 |
675 // JVMTI Native method prefixing support: | |
676 bool is_prefixed_native() const { return access_flags().is_prefixed_native(); } | |
677 void set_is_prefixed_native() { _access_flags.set_is_prefixed_native(); } | |
678 | |
679 // Rewriting support | |
680 static methodHandle clone_with_new_data(methodHandle m, u_char* new_code, int new_code_length, | |
681 u_char* new_compressed_linenumber_table, int new_compressed_linenumber_size, TRAPS); | |
682 | |
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683 // jmethodID handling |
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684 // Because the useful life-span of a jmethodID cannot be determined, |
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685 // once created they are never reclaimed. The methods to which they refer, |
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686 // however, can be GC'ed away if the class is unloaded or if the method is |
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687 // made obsolete or deleted -- in these cases, the jmethodID |
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688 // refers to NULL (as is the case for any weak reference). |
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689 static jmethodID make_jmethod_id(ClassLoaderData* loader_data, Method* mh); |
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690 static void destroy_jmethod_id(ClassLoaderData* loader_data, jmethodID mid); |
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691 |
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692 // Use resolve_jmethod_id() in situations where the caller is expected |
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693 // to provide a valid jmethodID; the only sanity checks are in asserts; |
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694 // result guaranteed not to be NULL. |
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695 inline static Method* resolve_jmethod_id(jmethodID mid) { |
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696 assert(mid != NULL, "JNI method id should not be null"); |
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697 return *((Method**)mid); |
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698 } |
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699 |
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700 // Use checked_resolve_jmethod_id() in situations where the caller |
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701 // should provide a valid jmethodID, but might not. NULL is returned |
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702 // when the jmethodID does not refer to a valid method. |
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703 static Method* checked_resolve_jmethod_id(jmethodID mid); |
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704 |
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705 static void change_method_associated_with_jmethod_id(jmethodID old_jmid_ptr, Method* new_method); |
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706 static bool is_method_id(jmethodID mid); |
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707 |
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708 // Clear methods |
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709 static void clear_jmethod_ids(ClassLoaderData* loader_data); |
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710 static void print_jmethod_ids(ClassLoaderData* loader_data, outputStream* out) PRODUCT_RETURN; |
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711 |
0 | 712 // Get this method's jmethodID -- allocate if it doesn't exist |
713 jmethodID jmethod_id() { methodHandle this_h(this); | |
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714 return InstanceKlass::get_jmethod_id(method_holder(), this_h); } |
0 | 715 |
716 // Lookup the jmethodID for this method. Return NULL if not found. | |
717 // NOTE that this function can be called from a signal handler | |
718 // (see AsyncGetCallTrace support for Forte Analyzer) and this | |
719 // needs to be async-safe. No allocation should be done and | |
720 // so handles are not used to avoid deadlock. | |
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721 jmethodID find_jmethod_id_or_null() { return method_holder()->jmethod_id_or_null(this); } |
0 | 722 |
723 // JNI static invoke cached itable index accessors | |
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724 int cached_itable_index() { return method_holder()->cached_itable_index(method_idnum()); } |
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725 void set_cached_itable_index(int index) { method_holder()->set_cached_itable_index(method_idnum(), index); } |
0 | 726 |
727 // Support for inlining of intrinsic methods | |
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728 vmIntrinsics::ID intrinsic_id() const { return (vmIntrinsics::ID) _intrinsic_id; } |
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729 void set_intrinsic_id(vmIntrinsics::ID id) { _intrinsic_id = (u1) id; } |
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730 |
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731 // Helper routines for intrinsic_id() and vmIntrinsics::method(). |
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732 void init_intrinsic_id(); // updates from _none if a match |
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733 static vmSymbols::SID klass_id_for_intrinsics(Klass* holder); |
0 | 734 |
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735 bool jfr_towrite() { return _jfr_towrite; } |
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736 void set_jfr_towrite(bool towrite) { _jfr_towrite = towrite; } |
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737 |
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738 bool force_inline() { return _force_inline; } |
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739 void set_force_inline(bool x) { _force_inline = x; } |
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740 bool dont_inline() { return _dont_inline; } |
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741 void set_dont_inline(bool x) { _dont_inline = x; } |
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742 bool is_hidden() { return _hidden; } |
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743 void set_hidden(bool x) { _hidden = x; } |
6934 | 744 ConstMethod::MethodType method_type() const { |
745 return _constMethod->method_type(); | |
746 } | |
747 bool is_overpass() const { return method_type() == ConstMethod::OVERPASS; } | |
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748 |
0 | 749 // On-stack replacement support |
1783 | 750 bool has_osr_nmethod(int level, bool match_level) { |
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751 return method_holder()->lookup_osr_nmethod(this, InvocationEntryBci, level, match_level) != NULL; |
1783 | 752 } |
753 | |
754 nmethod* lookup_osr_nmethod_for(int bci, int level, bool match_level) { | |
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755 return method_holder()->lookup_osr_nmethod(this, bci, level, match_level); |
1783 | 756 } |
0 | 757 |
758 // Inline cache support | |
759 void cleanup_inline_caches(); | |
760 | |
761 // Find if klass for method is loaded | |
762 bool is_klass_loaded_by_klass_index(int klass_index) const; | |
763 bool is_klass_loaded(int refinfo_index, bool must_be_resolved = false) const; | |
764 | |
765 // Indicates whether compilation failed earlier for this method, or | |
766 // whether it is not compilable for another reason like having a | |
767 // breakpoint set in it. | |
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768 bool is_not_compilable(int comp_level = CompLevel_any) const; |
1783 | 769 void set_not_compilable(int comp_level = CompLevel_all, bool report = true); |
770 void set_not_compilable_quietly(int comp_level = CompLevel_all) { | |
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771 set_not_compilable(comp_level, false); |
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772 } |
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773 bool is_not_osr_compilable(int comp_level = CompLevel_any) const; |
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774 void set_not_osr_compilable(int comp_level = CompLevel_all, bool report = true); |
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775 void set_not_osr_compilable_quietly(int comp_level = CompLevel_all) { |
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776 set_not_osr_compilable(comp_level, false); |
1783 | 777 } |
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778 |
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779 private: |
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780 void print_made_not_compilable(int comp_level, bool is_osr, bool report); |
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781 |
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782 public: |
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783 bool is_not_c1_compilable() const { return access_flags().is_not_c1_compilable(); } |
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784 void set_not_c1_compilable() { _access_flags.set_not_c1_compilable(); } |
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785 bool is_not_c2_compilable() const { return access_flags().is_not_c2_compilable(); } |
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786 void set_not_c2_compilable() { _access_flags.set_not_c2_compilable(); } |
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787 |
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788 bool is_not_c1_osr_compilable() const { return is_not_c1_compilable(); } // don't waste an accessFlags bit |
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789 void set_not_c1_osr_compilable() { set_not_c1_compilable(); } // don't waste an accessFlags bit |
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790 bool is_not_c2_osr_compilable() const { return access_flags().is_not_c2_osr_compilable(); } |
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791 void set_not_c2_osr_compilable() { _access_flags.set_not_c2_osr_compilable(); } |
0 | 792 |
793 // Background compilation support | |
1783 | 794 bool queued_for_compilation() const { return access_flags().queued_for_compilation(); } |
795 void set_queued_for_compilation() { _access_flags.set_queued_for_compilation(); } | |
796 void clear_queued_for_compilation() { _access_flags.clear_queued_for_compilation(); } | |
0 | 797 |
798 // Resolve all classes in signature, return 'true' if successful | |
799 static bool load_signature_classes(methodHandle m, TRAPS); | |
800 | |
801 // Return if true if not all classes references in signature, including return type, has been loaded | |
802 static bool has_unloaded_classes_in_signature(methodHandle m, TRAPS); | |
803 | |
804 // Printing | |
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805 void print_short_name(outputStream* st = tty) /*PRODUCT_RETURN*/; // prints as klassname::methodname; Exposed so field engineers can debug VM |
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806 void print_name(outputStream* st = tty) PRODUCT_RETURN; // prints as "virtual void foo(int)" |
0 | 807 |
808 // Helper routine used for method sorting | |
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809 static void sort_methods(Array<Method*>* methods, |
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810 Array<AnnotationArray*>* methods_annotations, |
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811 Array<AnnotationArray*>* methods_parameter_annotations, |
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812 Array<AnnotationArray*>* methods_default_annotations, |
0 | 813 bool idempotent = false); |
814 | |
815 // size of parameters | |
816 void set_size_of_parameters(int size) { _size_of_parameters = size; } | |
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817 |
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818 // Deallocation function for redefine classes or if an error occurs |
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819 void deallocate_contents(ClassLoaderData* loader_data); |
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820 |
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821 // Printing |
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822 #ifndef PRODUCT |
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823 void print_on(outputStream* st) const; |
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824 #endif |
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825 void print_value_on(outputStream* st) const; |
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826 |
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827 const char* internal_name() const { return "{method}"; } |
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828 |
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829 // Check for valid method pointer |
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830 bool is_valid_method() const; |
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831 |
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832 // Verify |
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833 void verify() { verify_on(tty); } |
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834 void verify_on(outputStream* st); |
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835 |
0 | 836 private: |
837 | |
838 // Inlined elements | |
839 address* native_function_addr() const { assert(is_native(), "must be native"); return (address*) (this+1); } | |
840 address* signature_handler_addr() const { return native_function_addr() + 1; } | |
841 }; | |
842 | |
843 | |
844 // Utility class for compressing line number tables | |
845 | |
846 class CompressedLineNumberWriteStream: public CompressedWriteStream { | |
847 private: | |
848 int _bci; | |
849 int _line; | |
850 public: | |
851 // Constructor | |
852 CompressedLineNumberWriteStream(int initial_size) : CompressedWriteStream(initial_size), _bci(0), _line(0) {} | |
853 CompressedLineNumberWriteStream(u_char* buffer, int initial_size) : CompressedWriteStream(buffer, initial_size), _bci(0), _line(0) {} | |
854 | |
855 // Write (bci, line number) pair to stream | |
856 void write_pair_regular(int bci_delta, int line_delta); | |
857 | |
858 inline void write_pair_inline(int bci, int line) { | |
859 int bci_delta = bci - _bci; | |
860 int line_delta = line - _line; | |
861 _bci = bci; | |
862 _line = line; | |
863 // Skip (0,0) deltas - they do not add information and conflict with terminator. | |
864 if (bci_delta == 0 && line_delta == 0) return; | |
865 // Check if bci is 5-bit and line number 3-bit unsigned. | |
866 if (((bci_delta & ~0x1F) == 0) && ((line_delta & ~0x7) == 0)) { | |
867 // Compress into single byte. | |
868 jubyte value = ((jubyte) bci_delta << 3) | (jubyte) line_delta; | |
869 // Check that value doesn't match escape character. | |
870 if (value != 0xFF) { | |
871 write_byte(value); | |
872 return; | |
873 } | |
874 } | |
875 write_pair_regular(bci_delta, line_delta); | |
876 } | |
877 | |
878 // Windows AMD64 + Apr 2005 PSDK with /O2 generates bad code for write_pair. | |
879 // Disabling optimization doesn't work for methods in header files | |
880 // so we force it to call through the non-optimized version in the .cpp. | |
881 // It's gross, but it's the only way we can ensure that all callers are | |
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882 // fixed. _MSC_VER is defined by the windows compiler |
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883 #if defined(_M_AMD64) && _MSC_VER >= 1400 |
0 | 884 void write_pair(int bci, int line); |
885 #else | |
886 void write_pair(int bci, int line) { write_pair_inline(bci, line); } | |
887 #endif | |
888 | |
889 // Write end-of-stream marker | |
890 void write_terminator() { write_byte(0); } | |
891 }; | |
892 | |
893 | |
894 // Utility class for decompressing line number tables | |
895 | |
896 class CompressedLineNumberReadStream: public CompressedReadStream { | |
897 private: | |
898 int _bci; | |
899 int _line; | |
900 public: | |
901 // Constructor | |
902 CompressedLineNumberReadStream(u_char* buffer); | |
903 // Read (bci, line number) pair from stream. Returns false at end-of-stream. | |
904 bool read_pair(); | |
905 // Accessing bci and line number (after calling read_pair) | |
906 int bci() const { return _bci; } | |
907 int line() const { return _line; } | |
908 }; | |
909 | |
910 | |
911 /// Fast Breakpoints. | |
912 | |
913 // If this structure gets more complicated (because bpts get numerous), | |
914 // move it into its own header. | |
915 | |
916 // There is presently no provision for concurrent access | |
917 // to breakpoint lists, which is only OK for JVMTI because | |
918 // breakpoints are written only at safepoints, and are read | |
919 // concurrently only outside of safepoints. | |
920 | |
6197 | 921 class BreakpointInfo : public CHeapObj<mtClass> { |
0 | 922 friend class VMStructs; |
923 private: | |
924 Bytecodes::Code _orig_bytecode; | |
925 int _bci; | |
926 u2 _name_index; // of method | |
927 u2 _signature_index; // of method | |
928 BreakpointInfo* _next; // simple storage allocation | |
929 | |
930 public: | |
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931 BreakpointInfo(Method* m, int bci); |
0 | 932 |
933 // accessors | |
934 Bytecodes::Code orig_bytecode() { return _orig_bytecode; } | |
935 void set_orig_bytecode(Bytecodes::Code code) { _orig_bytecode = code; } | |
936 int bci() { return _bci; } | |
937 | |
938 BreakpointInfo* next() const { return _next; } | |
939 void set_next(BreakpointInfo* n) { _next = n; } | |
940 | |
941 // helps for searchers | |
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942 bool match(const Method* m, int bci) { |
0 | 943 return bci == _bci && match(m); |
944 } | |
945 | |
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946 bool match(const Method* m) { |
0 | 947 return _name_index == m->name_index() && |
948 _signature_index == m->signature_index(); | |
949 } | |
950 | |
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951 void set(Method* method); |
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952 void clear(Method* method); |
0 | 953 }; |
1972 | 954 |
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955 // Utility class for access exception handlers |
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956 class ExceptionTable : public StackObj { |
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957 private: |
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958 ExceptionTableElement* _table; |
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959 u2 _length; |
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960 |
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961 public: |
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962 ExceptionTable(Method* m) { |
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963 if (m->has_exception_handler()) { |
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964 _table = m->exception_table_start(); |
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965 _length = m->exception_table_length(); |
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966 } else { |
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967 _table = NULL; |
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968 _length = 0; |
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969 } |
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970 } |
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971 |
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972 int length() const { |
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973 return _length; |
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974 } |
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975 |
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976 u2 start_pc(int idx) const { |
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977 assert(idx < _length, "out of bounds"); |
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978 return _table[idx].start_pc; |
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979 } |
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980 |
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981 void set_start_pc(int idx, u2 value) { |
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982 assert(idx < _length, "out of bounds"); |
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983 _table[idx].start_pc = value; |
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984 } |
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985 |
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986 u2 end_pc(int idx) const { |
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987 assert(idx < _length, "out of bounds"); |
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988 return _table[idx].end_pc; |
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989 } |
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990 |
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991 void set_end_pc(int idx, u2 value) { |
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992 assert(idx < _length, "out of bounds"); |
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993 _table[idx].end_pc = value; |
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994 } |
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995 |
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996 u2 handler_pc(int idx) const { |
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997 assert(idx < _length, "out of bounds"); |
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998 return _table[idx].handler_pc; |
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999 } |
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1000 |
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1001 void set_handler_pc(int idx, u2 value) { |
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1002 assert(idx < _length, "out of bounds"); |
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1003 _table[idx].handler_pc = value; |
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1004 } |
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1005 |
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1006 u2 catch_type_index(int idx) const { |
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1007 assert(idx < _length, "out of bounds"); |
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1008 return _table[idx].catch_type_index; |
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1009 } |
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1010 |
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1011 void set_catch_type_index(int idx, u2 value) { |
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1012 assert(idx < _length, "out of bounds"); |
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1013 _table[idx].catch_type_index = value; |
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1014 } |
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1015 }; |
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1016 |
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1017 #ifdef GRAAL |
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1018 class DebugScopedMethod : public DebugScopedValue { |
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1019 private: |
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1020 Method* _method; |
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1021 public: |
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1022 DebugScopedMethod(const char* file, int line, Method* method) : DebugScopedValue(file, line), _method(method) {} |
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1023 void print_on(outputStream* st); |
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1024 }; |
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1025 #define DS_METHOD(method) DebugScopedMethod __dsm__(__FILE__, __LINE__, method) |
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1026 #define DS_METHOD1(var, method) DebugScopedMethod var(__FILE__, __LINE__, method) |
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1027 #else |
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1028 #define DS_METHOD(method) do {} while (0) |
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1029 #define DS_METHOD1(var, method) do {} while (0) |
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1030 #endif |
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1031 |
1972 | 1032 #endif // SHARE_VM_OOPS_METHODOOP_HPP |
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1033 |