Mercurial > hg > truffle

comparison src/share/vm/prims/jvmtiCodeBlobEvents.cpp @ 14909:4ca6dc0799b6

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Backout jdk9 merge
author Gilles Duboscq <duboscq@ssw.jku.at>
date Tue, 01 Apr 2014 13:57:07 +0200
parents d8041d695d19
children 52b4284cb496
comparison
equal deleted inserted replaced
14908:8db6e76cb658 14909:4ca6dc0799b6
24 24
25 #include "precompiled.hpp" 25 #include "precompiled.hpp"
26 #include "code/codeBlob.hpp" 26 #include "code/codeBlob.hpp"
27 #include "code/codeCache.hpp" 27 #include "code/codeCache.hpp"
28 #include "code/scopeDesc.hpp" 28 #include "code/scopeDesc.hpp"
29 #include "code/vtableStubs.hpp"
30 #include "memory/resourceArea.hpp" 29 #include "memory/resourceArea.hpp"
31 #include "oops/oop.inline.hpp" 30 #include "oops/oop.inline.hpp"
32 #include "prims/jvmtiCodeBlobEvents.hpp" 31 #include "prims/jvmtiCodeBlobEvents.hpp"
33 #include "prims/jvmtiExport.hpp" 32 #include "prims/jvmtiExport.hpp"
34 #include "runtime/handles.hpp" 33 #include "runtime/handles.hpp"
62 int _pos; // iterator position 61 int _pos; // iterator position
63 62
64 // used during a collection 63 // used during a collection
65 static GrowableArray<JvmtiCodeBlobDesc*>* _global_code_blobs; 64 static GrowableArray<JvmtiCodeBlobDesc*>* _global_code_blobs;
66 static void do_blob(CodeBlob* cb); 65 static void do_blob(CodeBlob* cb);
67 static void do_vtable_stub(VtableStub* vs);
68 public: 66 public:
69 CodeBlobCollector() { 67 CodeBlobCollector() {
70 _code_blobs = NULL; 68 _code_blobs = NULL;
71 _pos = -1; 69 _pos = -1;
72 } 70 }
117 115
118 void CodeBlobCollector::do_blob(CodeBlob* cb) { 116 void CodeBlobCollector::do_blob(CodeBlob* cb) {
119 117
120 // ignore nmethods 118 // ignore nmethods
121 if (cb->is_nmethod()) { 119 if (cb->is_nmethod()) {
122 return;
123 }
124 // exclude VtableStubs, which are processed separately
125 if (cb->is_buffer_blob() && strcmp(cb->name(), "vtable chunks") == 0) {
126 return; 120 return;
127 } 121 }
128 122
129 // check if this starting address has been seen already - the 123 // check if this starting address has been seen already - the
130 // assumption is that stubs are inserted into the list before the 124 // assumption is that stubs are inserted into the list before the
140 // record the CodeBlob details as a JvmtiCodeBlobDesc 134 // record the CodeBlob details as a JvmtiCodeBlobDesc
141 JvmtiCodeBlobDesc* scb = new JvmtiCodeBlobDesc(cb->name(), cb->code_begin(), cb->code_end()); 135 JvmtiCodeBlobDesc* scb = new JvmtiCodeBlobDesc(cb->name(), cb->code_begin(), cb->code_end());
142 _global_code_blobs->append(scb); 136 _global_code_blobs->append(scb);
143 } 137 }
144 138
145 // called for each VtableStub in VtableStubs
146
147 void CodeBlobCollector::do_vtable_stub(VtableStub* vs) {
148 JvmtiCodeBlobDesc* scb = new JvmtiCodeBlobDesc(vs->is_vtable_stub() ? "vtable stub" : "itable stub",
149 vs->code_begin(), vs->code_end());
150 _global_code_blobs->append(scb);
151 }
152 139
153 // collects a list of CodeBlobs in the CodeCache. 140 // collects a list of CodeBlobs in the CodeCache.
154 // 141 //
155 // The created list is growable array of JvmtiCodeBlobDesc - each one describes 142 // The created list is growable array of JvmtiCodeBlobDesc - each one describes
156 // a CodeBlob. Note that the list is static - this is because CodeBlob::blobs_do 143 // a CodeBlob. Note that the list is static - this is because CodeBlob::blobs_do
176 int index = 0; 163 int index = 0;
177 StubCodeDesc* desc; 164 StubCodeDesc* desc;
178 while ((desc = StubCodeDesc::desc_for_index(++index)) != NULL) { 165 while ((desc = StubCodeDesc::desc_for_index(++index)) != NULL) {
179 _global_code_blobs->append(new JvmtiCodeBlobDesc(desc->name(), desc->begin(), desc->end())); 166 _global_code_blobs->append(new JvmtiCodeBlobDesc(desc->name(), desc->begin(), desc->end()));
180 } 167 }
181
182 // Vtable stubs are not described with StubCodeDesc,
183 // process them separately
184 VtableStubs::vtable_stub_do(do_vtable_stub);
185 168
186 // next iterate over all the non-nmethod code blobs and add them to 169 // next iterate over all the non-nmethod code blobs and add them to
187 // the list - as noted above this will filter out duplicates and 170 // the list - as noted above this will filter out duplicates and
188 // enclosing blobs. 171 // enclosing blobs.
189 CodeCache::blobs_do(do_blob); 172 CodeCache::blobs_do(do_blob);