100 target->send_thread_stop(throwable());
101 }
102 }
103
104 void VM_Deoptimize::doit() {
105 // We do not want any GCs to happen while we are in the middle of this VM operation
106 ResourceMark rm;
107 DeoptimizationMarker dm;
108
109 // Deoptimize all activations depending on marked nmethods
110 Deoptimization::deoptimize_dependents();
111
112 // Make the dependent methods not entrant
113 CodeCache::make_marked_nmethods_not_entrant();
114 }
115
116 void VM_MarkActiveNMethods::doit() {
117 NMethodSweeper::mark_active_nmethods();
118 }
119
120 VM_DeoptimizeFrame::VM_DeoptimizeFrame(JavaThread* thread, intptr_t* id) {
121 _thread = thread;
122 _id = id;
123 }
124
125
126 void VM_DeoptimizeFrame::doit() {
127 Deoptimization::deoptimize_frame_internal(_thread, _id);
128 }
129
130
131 #ifndef PRODUCT
132
133 void VM_DeoptimizeAll::doit() {
134 DeoptimizationMarker dm;
135 // deoptimize all java threads in the system
136 if (DeoptimizeALot) {
137 for (JavaThread* thread = Threads::first(); thread != NULL; thread = thread->next()) {
138 if (thread->has_last_Java_frame()) {
139 thread->deoptimize();
140 }
141 }
142 } else if (DeoptimizeRandom) {
143
144 // Deoptimize some selected threads and frames
145 int tnum = os::random() & 0x3;
146 int fnum = os::random() & 0x3;
147 int tcount = 0;
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100 target->send_thread_stop(throwable());
101 }
102 }
103
104 void VM_Deoptimize::doit() {
105 // We do not want any GCs to happen while we are in the middle of this VM operation
106 ResourceMark rm;
107 DeoptimizationMarker dm;
108
109 // Deoptimize all activations depending on marked nmethods
110 Deoptimization::deoptimize_dependents();
111
112 // Make the dependent methods not entrant
113 CodeCache::make_marked_nmethods_not_entrant();
114 }
115
116 void VM_MarkActiveNMethods::doit() {
117 NMethodSweeper::mark_active_nmethods();
118 }
119
120 VM_DeoptimizeFrame::VM_DeoptimizeFrame(JavaThread* thread, intptr_t* id, int reason) {
121 _thread = thread;
122 _id = id;
123 _reason = reason;
124 }
125
126
127 void VM_DeoptimizeFrame::doit() {
128 assert(_reason > Deoptimization::Reason_none && _reason < Deoptimization::Reason_LIMIT, "invalid deopt reason");
129 Deoptimization::deoptimize_frame_internal(_thread, _id, (Deoptimization::DeoptReason)_reason);
130 }
131
132
133 #ifndef PRODUCT
134
135 void VM_DeoptimizeAll::doit() {
136 DeoptimizationMarker dm;
137 // deoptimize all java threads in the system
138 if (DeoptimizeALot) {
139 for (JavaThread* thread = Threads::first(); thread != NULL; thread = thread->next()) {
140 if (thread->has_last_Java_frame()) {
141 thread->deoptimize();
142 }
143 }
144 } else if (DeoptimizeRandom) {
145
146 // Deoptimize some selected threads and frames
147 int tnum = os::random() & 0x3;
148 int fnum = os::random() & 0x3;
149 int tcount = 0;
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