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comparison src/share/vm/oops/methodOop.hpp @ 4800:94ec88ca68e2

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7115199: Add event tracing hooks and Java Flight Recorder infrastructure Summary: Added a nop tracing infrastructure, JFR makefile changes and other infrastructure used only by JFR. Reviewed-by: acorn, sspitsyn Contributed-by: markus.gronlund@oracle.com
author phh
date Wed, 11 Jan 2012 17:34:02 -0500
parents ddd894528dbc
children 0382d2b469b2
comparison
equal deleted inserted replaced
4773:4f25538b54c9 4800:94ec88ca68e2
75 // | result_index (C++ interpreter only) | 75 // | result_index (C++ interpreter only) |
76 // |------------------------------------------------------| 76 // |------------------------------------------------------|
77 // | method_size | max_stack | 77 // | method_size | max_stack |
78 // | max_locals | size_of_parameters | 78 // | max_locals | size_of_parameters |
79 // |------------------------------------------------------| 79 // |------------------------------------------------------|
80 // | intrinsic_id, (unused) | throwout_count | 80 // |intrinsic_id| flags | throwout_count |
81 // |------------------------------------------------------| 81 // |------------------------------------------------------|
82 // | num_breakpoints | (unused) | 82 // | num_breakpoints | (unused) |
83 // |------------------------------------------------------| 83 // |------------------------------------------------------|
84 // | invocation_counter | 84 // | invocation_counter |
85 // | backedge_counter | 85 // | backedge_counter |
122 u2 _method_size; // size of this object 122 u2 _method_size; // size of this object
123 u2 _max_stack; // Maximum number of entries on the expression stack 123 u2 _max_stack; // Maximum number of entries on the expression stack
124 u2 _max_locals; // Number of local variables used by this method 124 u2 _max_locals; // Number of local variables used by this method
125 u2 _size_of_parameters; // size of the parameter block (receiver + arguments) in words 125 u2 _size_of_parameters; // size of the parameter block (receiver + arguments) in words
126 u1 _intrinsic_id; // vmSymbols::intrinsic_id (0 == _none) 126 u1 _intrinsic_id; // vmSymbols::intrinsic_id (0 == _none)
127 u1 _jfr_towrite : 1, // Flags
128 : 7;
127 u2 _interpreter_throwout_count; // Count of times method was exited via exception while interpreting 129 u2 _interpreter_throwout_count; // Count of times method was exited via exception while interpreting
128 u2 _number_of_breakpoints; // fullspeed debugging support 130 u2 _number_of_breakpoints; // fullspeed debugging support
129 InvocationCounter _invocation_counter; // Incremented before each activation of the method - used to trigger frequency-based optimizations 131 InvocationCounter _invocation_counter; // Incremented before each activation of the method - used to trigger frequency-based optimizations
130 InvocationCounter _backedge_counter; // Incremented before each backedge taken - used to trigger frequencey-based optimizations 132 InvocationCounter _backedge_counter; // Incremented before each backedge taken - used to trigger frequencey-based optimizations
131 133
223 void decr_number_of_breakpoints() { --_number_of_breakpoints; } 225 void decr_number_of_breakpoints() { --_number_of_breakpoints; }
224 // Initialization only 226 // Initialization only
225 void clear_number_of_breakpoints() { _number_of_breakpoints = 0; } 227 void clear_number_of_breakpoints() { _number_of_breakpoints = 0; }
226 228
227 // index into instanceKlass methods() array 229 // index into instanceKlass methods() array
230 // note: also used by jfr
228 u2 method_idnum() const { return constMethod()->method_idnum(); } 231 u2 method_idnum() const { return constMethod()->method_idnum(); }
229 void set_method_idnum(u2 idnum) { constMethod()->set_method_idnum(idnum); } 232 void set_method_idnum(u2 idnum) { constMethod()->set_method_idnum(idnum); }
230 233
231 // code size 234 // code size
232 int code_size() const { return constMethod()->code_size(); } 235 int code_size() const { return constMethod()->code_size(); }
648 651
649 // Helper routines for intrinsic_id() and vmIntrinsics::method(). 652 // Helper routines for intrinsic_id() and vmIntrinsics::method().
650 void init_intrinsic_id(); // updates from _none if a match 653 void init_intrinsic_id(); // updates from _none if a match
651 static vmSymbols::SID klass_id_for_intrinsics(klassOop holder); 654 static vmSymbols::SID klass_id_for_intrinsics(klassOop holder);
652 655
656 bool jfr_towrite() { return _jfr_towrite; }
657 void set_jfr_towrite(bool towrite) { _jfr_towrite = towrite; }
658
653 // On-stack replacement support 659 // On-stack replacement support
654 bool has_osr_nmethod(int level, bool match_level) { 660 bool has_osr_nmethod(int level, bool match_level) {
655 return instanceKlass::cast(method_holder())->lookup_osr_nmethod(this, InvocationEntryBci, level, match_level) != NULL; 661 return instanceKlass::cast(method_holder())->lookup_osr_nmethod(this, InvocationEntryBci, level, match_level) != NULL;
656 } 662 }
657 663