42650
|
1 |
/*
|
47668
|
2 |
* Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved.
|
42650
|
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 |
*
|
|
19 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
20 |
* or visit www.oracle.com if you need additional information or have any
|
|
21 |
* questions.
|
|
22 |
*/
|
|
23 |
|
|
24 |
#include "precompiled.hpp"
|
|
25 |
#include "classfile/stringTable.hpp"
|
|
26 |
#include "classfile/symbolTable.hpp"
|
47668
|
27 |
#include "interpreter/linkResolver.hpp"
|
42650
|
28 |
#include "jvmci/compilerRuntime.hpp"
|
47668
|
29 |
#include "oops/oop.inline.hpp"
|
42650
|
30 |
#include "runtime/compilationPolicy.hpp"
|
|
31 |
#include "runtime/deoptimization.hpp"
|
|
32 |
#include "runtime/interfaceSupport.hpp"
|
47668
|
33 |
#include "runtime/vframe.hpp"
|
|
34 |
#include "aot/aotLoader.hpp"
|
42650
|
35 |
|
|
36 |
// Resolve and allocate String
|
|
37 |
JRT_BLOCK_ENTRY(void, CompilerRuntime::resolve_string_by_symbol(JavaThread *thread, void* string_result, const char* name))
|
|
38 |
JRT_BLOCK
|
|
39 |
oop str = *(oop*)string_result; // Is it resolved already?
|
|
40 |
if (str == NULL) { // Do resolution
|
|
41 |
// First 2 bytes of name contains length (number of bytes).
|
|
42 |
int len = build_u2_from((address)name);
|
|
43 |
name += 2;
|
|
44 |
TempNewSymbol sym = SymbolTable::new_symbol(name, len, CHECK);
|
|
45 |
str = StringTable::intern(sym, CHECK);
|
|
46 |
assert(java_lang_String::is_instance(str), "must be string");
|
|
47 |
*(oop*)string_result = str; // Store result
|
|
48 |
}
|
|
49 |
assert(str != NULL, "Should be allocated!");
|
|
50 |
thread->set_vm_result(str);
|
|
51 |
JRT_BLOCK_END
|
|
52 |
JRT_END
|
|
53 |
|
|
54 |
|
|
55 |
|
|
56 |
Klass* CompilerRuntime::resolve_klass_helper(JavaThread *thread, const char* name, int len, TRAPS) {
|
|
57 |
ResourceMark rm(THREAD);
|
|
58 |
// last java frame on stack (which includes native call frames)
|
|
59 |
RegisterMap cbl_map(thread, false);
|
|
60 |
// Skip stub
|
|
61 |
frame caller_frame = thread->last_frame().sender(&cbl_map);
|
|
62 |
CodeBlob* caller_cb = caller_frame.cb();
|
|
63 |
guarantee(caller_cb != NULL && caller_cb->is_compiled(), "must be called from compiled method");
|
|
64 |
CompiledMethod* caller_nm = caller_cb->as_compiled_method_or_null();
|
|
65 |
methodHandle caller(THREAD, caller_nm->method());
|
|
66 |
|
|
67 |
// Use class loader of aot method.
|
|
68 |
Handle loader(THREAD, caller->method_holder()->class_loader());
|
|
69 |
Handle protection_domain(THREAD, caller->method_holder()->protection_domain());
|
|
70 |
|
|
71 |
// Ignore wrapping L and ;
|
|
72 |
if (name[0] == 'L') {
|
|
73 |
assert(len > 2, "small name %s", name);
|
|
74 |
name++;
|
|
75 |
len -= 2;
|
|
76 |
}
|
|
77 |
TempNewSymbol sym = SymbolTable::new_symbol(name, len, CHECK_NULL);
|
|
78 |
if (sym == NULL) {
|
|
79 |
return NULL;
|
|
80 |
}
|
|
81 |
Klass* k = SystemDictionary::resolve_or_fail(sym, loader, protection_domain, true, CHECK_NULL);
|
|
82 |
|
|
83 |
return k;
|
|
84 |
}
|
|
85 |
|
|
86 |
// Resolve Klass
|
|
87 |
JRT_BLOCK_ENTRY(Klass*, CompilerRuntime::resolve_klass_by_symbol(JavaThread *thread, Klass** klass_result, const char* name))
|
|
88 |
Klass* k = NULL;
|
|
89 |
JRT_BLOCK
|
|
90 |
k = *klass_result; // Is it resolved already?
|
|
91 |
if (k == NULL) { // Do resolution
|
|
92 |
// First 2 bytes of name contains length (number of bytes).
|
|
93 |
int len = build_u2_from((address)name);
|
|
94 |
name += 2;
|
|
95 |
k = CompilerRuntime::resolve_klass_helper(thread, name, len, CHECK_NULL);
|
|
96 |
*klass_result = k; // Store result
|
|
97 |
}
|
|
98 |
JRT_BLOCK_END
|
|
99 |
assert(k != NULL, " Should be loaded!");
|
|
100 |
return k;
|
|
101 |
JRT_END
|
|
102 |
|
|
103 |
|
|
104 |
Method* CompilerRuntime::resolve_method_helper(Klass* klass, const char* method_name, int method_name_len,
|
|
105 |
const char* signature_name, int signature_name_len) {
|
|
106 |
Method* m = NULL;
|
|
107 |
TempNewSymbol name_symbol = SymbolTable::probe(method_name, method_name_len);
|
|
108 |
TempNewSymbol signature_symbol = SymbolTable::probe(signature_name, signature_name_len);
|
|
109 |
if (name_symbol != NULL && signature_symbol != NULL) {
|
|
110 |
if (name_symbol == vmSymbols::object_initializer_name() ||
|
|
111 |
name_symbol == vmSymbols::class_initializer_name()) {
|
|
112 |
// Never search superclasses for constructors
|
|
113 |
if (klass->is_instance_klass()) {
|
|
114 |
m = InstanceKlass::cast(klass)->find_method(name_symbol, signature_symbol);
|
|
115 |
}
|
|
116 |
} else {
|
|
117 |
m = klass->lookup_method(name_symbol, signature_symbol);
|
|
118 |
if (m == NULL && klass->is_instance_klass()) {
|
|
119 |
m = InstanceKlass::cast(klass)->lookup_method_in_ordered_interfaces(name_symbol, signature_symbol);
|
|
120 |
}
|
|
121 |
}
|
|
122 |
}
|
|
123 |
return m;
|
|
124 |
}
|
|
125 |
|
47668
|
126 |
JRT_BLOCK_ENTRY(void, CompilerRuntime::resolve_dynamic_invoke(JavaThread *thread, oop* appendix_result))
|
|
127 |
JRT_BLOCK
|
|
128 |
{
|
|
129 |
ResourceMark rm(THREAD);
|
|
130 |
vframeStream vfst(thread, true); // Do not skip and javaCalls
|
|
131 |
assert(!vfst.at_end(), "Java frame must exist");
|
|
132 |
methodHandle caller(THREAD, vfst.method());
|
|
133 |
InstanceKlass* holder = caller->method_holder();
|
|
134 |
int bci = vfst.bci();
|
|
135 |
Bytecode_invoke bytecode(caller, bci);
|
|
136 |
int index = bytecode.index();
|
|
137 |
|
|
138 |
// Make sure it's resolved first
|
|
139 |
CallInfo callInfo;
|
|
140 |
constantPoolHandle cp(holder->constants());
|
|
141 |
ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index, true));
|
|
142 |
Bytecodes::Code invoke_code = bytecode.invoke_code();
|
|
143 |
if (!cp_cache_entry->is_resolved(invoke_code)) {
|
|
144 |
LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, invoke_code, CHECK);
|
|
145 |
if (bytecode.is_invokedynamic()) {
|
|
146 |
cp_cache_entry->set_dynamic_call(cp, callInfo);
|
|
147 |
} else {
|
|
148 |
cp_cache_entry->set_method_handle(cp, callInfo);
|
|
149 |
}
|
|
150 |
vmassert(cp_cache_entry->is_resolved(invoke_code), "sanity");
|
|
151 |
}
|
|
152 |
|
|
153 |
Handle appendix(THREAD, cp_cache_entry->appendix_if_resolved(cp));
|
|
154 |
Klass *appendix_klass = appendix.is_null() ? NULL : appendix->klass();
|
|
155 |
|
|
156 |
methodHandle adapter_method(cp_cache_entry->f1_as_method());
|
|
157 |
InstanceKlass *adapter_klass = adapter_method->method_holder();
|
|
158 |
|
|
159 |
if (appendix_klass != NULL && appendix_klass->is_instance_klass()) {
|
|
160 |
vmassert(InstanceKlass::cast(appendix_klass)->is_initialized(), "sanity");
|
|
161 |
}
|
|
162 |
if (!adapter_klass->is_initialized()) {
|
|
163 |
// Force initialization of adapter class
|
|
164 |
adapter_klass->initialize(CHECK);
|
|
165 |
// Double-check that it was really initialized,
|
|
166 |
// because we could be doing a recursive call
|
|
167 |
// from inside <clinit>.
|
|
168 |
}
|
|
169 |
|
|
170 |
int cpi = cp_cache_entry->constant_pool_index();
|
|
171 |
if (!AOTLoader::reconcile_dynamic_invoke(holder, cpi, adapter_method(),
|
|
172 |
appendix_klass)) {
|
|
173 |
return;
|
|
174 |
}
|
|
175 |
|
|
176 |
*appendix_result = appendix();
|
|
177 |
thread->set_vm_result(appendix());
|
|
178 |
}
|
|
179 |
JRT_BLOCK_END
|
|
180 |
JRT_END
|
|
181 |
|
42650
|
182 |
JRT_BLOCK_ENTRY(MethodCounters*, CompilerRuntime::resolve_method_by_symbol_and_load_counters(JavaThread *thread, MethodCounters** counters_result, Klass* klass, const char* data))
|
|
183 |
MethodCounters* c = *counters_result; // Is it resolved already?
|
|
184 |
JRT_BLOCK
|
|
185 |
if (c == NULL) { // Do resolution
|
|
186 |
// Get method name and its length
|
|
187 |
int method_name_len = build_u2_from((address)data);
|
|
188 |
data += sizeof(u2);
|
|
189 |
const char* method_name = data;
|
|
190 |
data += method_name_len;
|
|
191 |
|
|
192 |
// Get signature and its length
|
|
193 |
int signature_name_len = build_u2_from((address)data);
|
|
194 |
data += sizeof(u2);
|
|
195 |
const char* signature_name = data;
|
|
196 |
|
|
197 |
assert(klass != NULL, "Klass parameter must not be null");
|
|
198 |
Method* m = resolve_method_helper(klass, method_name, method_name_len, signature_name, signature_name_len);
|
|
199 |
assert(m != NULL, "Method must resolve successfully");
|
|
200 |
|
|
201 |
// Create method counters immediately to avoid check at runtime.
|
|
202 |
c = m->get_method_counters(thread);
|
|
203 |
if (c == NULL) {
|
|
204 |
THROW_MSG_NULL(vmSymbols::java_lang_OutOfMemoryError(), "Cannot allocate method counters");
|
|
205 |
}
|
|
206 |
|
|
207 |
*counters_result = c;
|
|
208 |
}
|
|
209 |
JRT_BLOCK_END
|
|
210 |
return c;
|
|
211 |
JRT_END
|
|
212 |
|
|
213 |
// Resolve and initialize Klass
|
|
214 |
JRT_BLOCK_ENTRY(Klass*, CompilerRuntime::initialize_klass_by_symbol(JavaThread *thread, Klass** klass_result, const char* name))
|
|
215 |
Klass* k = NULL;
|
|
216 |
JRT_BLOCK
|
|
217 |
k = klass_result[0]; // Is it initialized already?
|
|
218 |
if (k == NULL) { // Do initialized
|
|
219 |
k = klass_result[1]; // Is it resolved already?
|
|
220 |
if (k == NULL) { // Do resolution
|
|
221 |
// First 2 bytes of name contains length (number of bytes).
|
|
222 |
int len = build_u2_from((address)name);
|
|
223 |
const char *cname = name + 2;
|
|
224 |
k = CompilerRuntime::resolve_klass_helper(thread, cname, len, CHECK_NULL);
|
|
225 |
klass_result[1] = k; // Store resolved result
|
|
226 |
}
|
|
227 |
Klass* k0 = klass_result[0]; // Is it initialized already?
|
|
228 |
if (k0 == NULL && k != NULL && k->is_instance_klass()) {
|
|
229 |
// Force initialization of instance class
|
|
230 |
InstanceKlass::cast(k)->initialize(CHECK_NULL);
|
|
231 |
// Double-check that it was really initialized,
|
|
232 |
// because we could be doing a recursive call
|
|
233 |
// from inside <clinit>.
|
|
234 |
if (InstanceKlass::cast(k)->is_initialized()) {
|
|
235 |
klass_result[0] = k; // Store initialized result
|
|
236 |
}
|
|
237 |
}
|
|
238 |
}
|
|
239 |
JRT_BLOCK_END
|
|
240 |
assert(k != NULL, " Should be loaded!");
|
|
241 |
return k;
|
|
242 |
JRT_END
|
|
243 |
|
|
244 |
|
|
245 |
JRT_BLOCK_ENTRY(void, CompilerRuntime::invocation_event(JavaThread *thread, MethodCounters* counters))
|
|
246 |
if (!TieredCompilation) {
|
|
247 |
// Ignore the event if tiered is off
|
|
248 |
return;
|
|
249 |
}
|
|
250 |
JRT_BLOCK
|
|
251 |
methodHandle mh(THREAD, counters->method());
|
|
252 |
RegisterMap map(thread, false);
|
|
253 |
|
|
254 |
// Compute the enclosing method
|
|
255 |
frame fr = thread->last_frame().sender(&map);
|
|
256 |
CompiledMethod* cm = fr.cb()->as_compiled_method_or_null();
|
|
257 |
assert(cm != NULL && cm->is_compiled(), "Sanity check");
|
|
258 |
methodHandle emh(THREAD, cm->method());
|
|
259 |
|
|
260 |
assert(!HAS_PENDING_EXCEPTION, "Should not have any exceptions pending");
|
|
261 |
CompilationPolicy::policy()->event(emh, mh, InvocationEntryBci, InvocationEntryBci, CompLevel_aot, cm, thread);
|
|
262 |
assert(!HAS_PENDING_EXCEPTION, "Event handler should not throw any exceptions");
|
|
263 |
JRT_BLOCK_END
|
|
264 |
JRT_END
|
|
265 |
|
|
266 |
JRT_BLOCK_ENTRY(void, CompilerRuntime::backedge_event(JavaThread *thread, MethodCounters* counters, int branch_bci, int target_bci))
|
|
267 |
if (!TieredCompilation) {
|
|
268 |
// Ignore the event if tiered is off
|
|
269 |
return;
|
|
270 |
}
|
|
271 |
assert(branch_bci != InvocationEntryBci && target_bci != InvocationEntryBci, "Wrong bci");
|
|
272 |
assert(target_bci <= branch_bci, "Expected a back edge");
|
|
273 |
JRT_BLOCK
|
|
274 |
methodHandle mh(THREAD, counters->method());
|
|
275 |
RegisterMap map(thread, false);
|
|
276 |
|
|
277 |
// Compute the enclosing method
|
|
278 |
frame fr = thread->last_frame().sender(&map);
|
|
279 |
CompiledMethod* cm = fr.cb()->as_compiled_method_or_null();
|
|
280 |
assert(cm != NULL && cm->is_compiled(), "Sanity check");
|
|
281 |
methodHandle emh(THREAD, cm->method());
|
|
282 |
assert(!HAS_PENDING_EXCEPTION, "Should not have any exceptions pending");
|
|
283 |
nmethod* osr_nm = CompilationPolicy::policy()->event(emh, mh, branch_bci, target_bci, CompLevel_aot, cm, thread);
|
|
284 |
assert(!HAS_PENDING_EXCEPTION, "Event handler should not throw any exceptions");
|
|
285 |
if (osr_nm != NULL) {
|
|
286 |
Deoptimization::deoptimize_frame(thread, fr.id());
|
|
287 |
}
|
|
288 |
JRT_BLOCK_END
|
|
289 |
JRT_END
|