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comparison src/share/vm/utilities/exceptions.hpp @ 8337:37977d1dcedc

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Transmit deoptimization reason in thread local.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Mon, 18 Mar 2013 00:20:07 +0100
parents 6b6cbd8b8914
children 6b0fd0964b87
comparison
equal deleted inserted replaced
8336:38be33a1c28d 8337:37977d1dcedc
59 59
60 class ThreadShadow: public CHeapObj<mtThread> { 60 class ThreadShadow: public CHeapObj<mtThread> {
61 friend class VMStructs; 61 friend class VMStructs;
62 62
63 protected: 63 protected:
64 int _pending_deoptimization;
64 bool _pending_monitorenter; 65 bool _pending_monitorenter;
65 oop _pending_exception; // Thread has gc actions. 66 oop _pending_exception; // Thread has gc actions.
66 const char* _exception_file; // file information for exception (debugging only) 67 const char* _exception_file; // file information for exception (debugging only)
67 int _exception_line; // line information for exception (debugging only) 68 int _exception_line; // line information for exception (debugging only)
68 friend void check_ThreadShadow(); // checks _pending_exception offset 69 friend void check_ThreadShadow(); // checks _pending_exception offset
75 // notice that Thread has a vtable but ThreadShadow does not. 76 // notice that Thread has a vtable but ThreadShadow does not.
76 virtual void unused_initial_virtual() { } 77 virtual void unused_initial_virtual() { }
77 78
78 public: 79 public:
79 oop pending_exception() const { return _pending_exception; } 80 oop pending_exception() const { return _pending_exception; }
81 int pending_deoptimization() const { return _pending_deoptimization; }
80 bool has_pending_exception() const { return _pending_exception != NULL; } 82 bool has_pending_exception() const { return _pending_exception != NULL; }
81 const char* exception_file() const { return _exception_file; } 83 const char* exception_file() const { return _exception_file; }
82 int exception_line() const { return _exception_line; } 84 int exception_line() const { return _exception_line; }
83 bool has_pending_monitorenter() const { return _pending_monitorenter; } 85 bool has_pending_monitorenter() const { return _pending_monitorenter; }
84 86
85 // Code generation support 87 // Code generation support
88 static ByteSize pending_deoptimization_offset() { return byte_offset_of(ThreadShadow, _pending_deoptimization); }
86 static ByteSize pending_exception_offset() { return byte_offset_of(ThreadShadow, _pending_exception); } 89 static ByteSize pending_exception_offset() { return byte_offset_of(ThreadShadow, _pending_exception); }
87 static ByteSize pending_monitorenter_offset() { return byte_offset_of(ThreadShadow, _pending_monitorenter); } 90 static ByteSize pending_monitorenter_offset() { return byte_offset_of(ThreadShadow, _pending_monitorenter); }
88 91
89 bool set_pending_monitorenter(bool b) { return _pending_monitorenter = b; } 92 void set_pending_monitorenter(bool b) { _pending_monitorenter = b; }
93 void set_pending_deoptimization(int reason) { _pending_deoptimization = reason; }
90 94
91 // use THROW whenever possible! 95 // use THROW whenever possible!
92 void set_pending_exception(oop exception, const char* file, int line); 96 void set_pending_exception(oop exception, const char* file, int line);
93 97
94 // use CLEAR_PENDING_EXCEPTION whenever possible! 98 // use CLEAR_PENDING_EXCEPTION whenever possible!
95 void clear_pending_exception(); 99 void clear_pending_exception();
96 100
97 ThreadShadow() : _pending_exception(NULL), 101 ThreadShadow() : _pending_exception(NULL),
98 _exception_file(NULL), _exception_line(0), _pending_monitorenter(false) {} 102 _exception_file(NULL), _exception_line(0), _pending_monitorenter(false), _pending_deoptimization(-1) {}
99 }; 103 };
100 104
101 105
102 // Exceptions is a helper class that encapsulates all operations 106 // Exceptions is a helper class that encapsulates all operations
103 // that require access to the thread interface and which are 107 // that require access to the thread interface and which are