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comparison src/share/vm/code/vtableStubs.cpp @ 14909:4ca6dc0799b6

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Backout jdk9 merge
author Gilles Duboscq <duboscq@ssw.jku.at>
date Tue, 01 Apr 2014 13:57:07 +0200
parents 9341a9963d36
children 52b4284cb496
comparison
equal deleted inserted replaced
14908:8db6e76cb658 14909:4ca6dc0799b6
53 const int real_size = round_to(code_size + sizeof(VtableStub), wordSize); 53 const int real_size = round_to(code_size + sizeof(VtableStub), wordSize);
54 // malloc them in chunks to minimize header overhead 54 // malloc them in chunks to minimize header overhead
55 const int chunk_factor = 32; 55 const int chunk_factor = 32;
56 if (_chunk == NULL || _chunk + real_size > _chunk_end) { 56 if (_chunk == NULL || _chunk + real_size > _chunk_end) {
57 const int bytes = chunk_factor * real_size + pd_code_alignment(); 57 const int bytes = chunk_factor * real_size + pd_code_alignment();
58
59 // There is a dependency on the name of the blob in src/share/vm/prims/jvmtiCodeBlobEvents.cpp
60 // If changing the name, update the other file accordingly.
61 BufferBlob* blob = BufferBlob::create("vtable chunks", bytes); 58 BufferBlob* blob = BufferBlob::create("vtable chunks", bytes);
62 if (blob == NULL) { 59 if (blob == NULL) {
63 return NULL; 60 return NULL;
64 } 61 }
65 _chunk = blob->content_begin(); 62 _chunk = blob->content_begin();
66 _chunk_end = _chunk + bytes; 63 _chunk_end = _chunk + bytes;
67 Forte::register_stub("vtable stub", _chunk, _chunk_end); 64 Forte::register_stub("vtable stub", _chunk, _chunk_end);
65 // Notify JVMTI about this stub. The event will be recorded by the enclosing
66 // JvmtiDynamicCodeEventCollector and posted when this thread has released
67 // all locks.
68 if (JvmtiExport::should_post_dynamic_code_generated()) {
69 JvmtiExport::post_dynamic_code_generated_while_holding_locks("vtable stub", _chunk, _chunk_end);
70 }
68 align_chunk(); 71 align_chunk();
69 } 72 }
70 assert(_chunk + real_size <= _chunk_end, "bad allocation"); 73 assert(_chunk + real_size <= _chunk_end, "bad allocation");
71 void* res = _chunk; 74 void* res = _chunk;
72 _chunk += real_size; 75 _chunk += real_size;
125 if (PrintAdapterHandlers) { 128 if (PrintAdapterHandlers) {
126 tty->print_cr("Decoding VtableStub %s[%d]@%d", 129 tty->print_cr("Decoding VtableStub %s[%d]@%d",
127 is_vtable_stub? "vtbl": "itbl", vtable_index, VtableStub::receiver_location()); 130 is_vtable_stub? "vtbl": "itbl", vtable_index, VtableStub::receiver_location());
128 Disassembler::decode(s->code_begin(), s->code_end()); 131 Disassembler::decode(s->code_begin(), s->code_end());
129 } 132 }
130 // Notify JVMTI about this stub. The event will be recorded by the enclosing
131 // JvmtiDynamicCodeEventCollector and posted when this thread has released
132 // all locks.
133 if (JvmtiExport::should_post_dynamic_code_generated()) {
134 JvmtiExport::post_dynamic_code_generated_while_holding_locks(is_vtable_stub? "vtable stub": "itable stub",
135 s->code_begin(), s->code_end());
136 }
137 } 133 }
138 return s->entry_point(); 134 return s->entry_point();
139 } 135 }
140 136
141 137
195 return NULL; 191 return NULL;
196 } 192 }
197 193
198 void vtableStubs_init() { 194 void vtableStubs_init() {
199 VtableStubs::initialize(); 195 VtableStubs::initialize();
200 }
201
202 void VtableStubs::vtable_stub_do(void f(VtableStub*)) {
203 for (int i = 0; i < N; i++) {
204 for (VtableStub* s = _table[i]; s != NULL; s = s->next()) {
205 f(s);
206 }
207 }
208 } 196 }
209 197
210 198
211 //----------------------------------------------------------------------------------------------------- 199 //-----------------------------------------------------------------------------------------------------
212 // Non-product code 200 // Non-product code