Wed, 01 Feb 2012 07:59:01 -0800
7141200: log some interesting information in ring buffers for crashes
Reviewed-by: kvn, jrose, kevinw, brutisso, twisti, jmasa
1 //
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25 #include "precompiled.hpp"
26 #include "compiler/abstractCompiler.hpp"
27 #include "runtime/mutexLocker.hpp"
28 void AbstractCompiler::initialize_runtimes(initializer f, volatile int* state) {
29 if (*state != initialized) {
31 // We are thread in native here...
32 CompilerThread* thread = CompilerThread::current();
33 bool do_initialization = false;
34 {
35 ThreadInVMfromNative tv(thread);
36 ResetNoHandleMark rnhm;
37 MutexLocker only_one(CompileThread_lock, thread);
38 if ( *state == uninitialized) {
39 do_initialization = true;
40 *state = initializing;
41 } else {
42 while (*state == initializing ) {
43 CompileThread_lock->wait();
44 }
45 }
46 }
47 if (do_initialization) {
48 // We can not hold any locks here since JVMTI events may call agents
50 // Compiler(s) run as native
52 (*f)();
54 // To in_vm so we can use the lock
56 ThreadInVMfromNative tv(thread);
57 ResetNoHandleMark rnhm;
58 MutexLocker only_one(CompileThread_lock, thread);
59 assert(*state == initializing, "wrong state");
60 *state = initialized;
61 CompileThread_lock->notify_all();
62 }
63 }
64 }