35 #include "memory/metadataFactory.hpp"
36 #include "memory/oopFactory.hpp"
37 #include "memory/resourceArea.hpp"
38 #include "memory/universe.hpp"
39 #include "oops/method.inline.hpp"
40 #include "oops/oop.inline.hpp"
41 #include "oops/symbol.hpp"
42 #include "runtime/handles.inline.hpp"
43 #include "runtime/icache.hpp"
44 #include "runtime/sharedRuntime.hpp"
45 #include "runtime/stubRoutines.hpp"
46 #include "utilities/events.hpp"
47
48
49 // Every time a compiled IC is changed or its type is being accessed,
50 // either the CompiledIC_lock must be set or we must be at a safe point.
51
52 CompiledICLocker::CompiledICLocker(CompiledMethod* method)
53 : _method(method),
54 _behaviour(CompiledICProtectionBehaviour::current()),
55 _locked(_behaviour->lock(_method)),
56 _nsv(true, !SafepointSynchronize::is_at_safepoint()) {
57 }
58
59 CompiledICLocker::~CompiledICLocker() {
60 if (_locked) {
61 _behaviour->unlock(_method);
62 }
63 }
64
65 bool CompiledICLocker::is_safe(CompiledMethod* method) {
66 return CompiledICProtectionBehaviour::current()->is_safe(method);
67 }
68
69 bool CompiledICLocker::is_safe(address code) {
70 CodeBlob* cb = CodeCache::find_blob_unsafe(code);
71 assert(cb != NULL && cb->is_compiled(), "must be compiled");
72 CompiledMethod* cm = cb->as_compiled_method();
73 return CompiledICProtectionBehaviour::current()->is_safe(cm);
74 }
75
76 //-----------------------------------------------------------------------------
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35 #include "memory/metadataFactory.hpp"
36 #include "memory/oopFactory.hpp"
37 #include "memory/resourceArea.hpp"
38 #include "memory/universe.hpp"
39 #include "oops/method.inline.hpp"
40 #include "oops/oop.inline.hpp"
41 #include "oops/symbol.hpp"
42 #include "runtime/handles.inline.hpp"
43 #include "runtime/icache.hpp"
44 #include "runtime/sharedRuntime.hpp"
45 #include "runtime/stubRoutines.hpp"
46 #include "utilities/events.hpp"
47
48
49 // Every time a compiled IC is changed or its type is being accessed,
50 // either the CompiledIC_lock must be set or we must be at a safe point.
51
52 CompiledICLocker::CompiledICLocker(CompiledMethod* method)
53 : _method(method),
54 _behaviour(CompiledICProtectionBehaviour::current()),
55 _locked(_behaviour->lock(_method)) {
56 }
57
58 CompiledICLocker::~CompiledICLocker() {
59 if (_locked) {
60 _behaviour->unlock(_method);
61 }
62 }
63
64 bool CompiledICLocker::is_safe(CompiledMethod* method) {
65 return CompiledICProtectionBehaviour::current()->is_safe(method);
66 }
67
68 bool CompiledICLocker::is_safe(address code) {
69 CodeBlob* cb = CodeCache::find_blob_unsafe(code);
70 assert(cb != NULL && cb->is_compiled(), "must be compiled");
71 CompiledMethod* cm = cb->as_compiled_method();
72 return CompiledICProtectionBehaviour::current()->is_safe(cm);
73 }
74
75 //-----------------------------------------------------------------------------
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