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comparison src/share/vm/code/nmethod.hpp @ 1135:e66fd840cb6b

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6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164) Summary: During the work for 6829187 we have fixed a number of basic bugs which are logically grouped with 6815692 and 6858164 but which must be reviewed and pushed separately. Reviewed-by: kvn, never
author twisti
date Mon, 04 Jan 2010 18:38:08 +0100
parents 032260830071
children b1f619d38249
comparison
equal deleted inserted replaced
1134:0910903272e5 1135:e66fd840cb6b
79 79
80 // nmethods (native methods) are the compiled code versions of Java methods. 80 // nmethods (native methods) are the compiled code versions of Java methods.
81 81
82 struct nmFlags { 82 struct nmFlags {
83 friend class VMStructs; 83 friend class VMStructs;
84 unsigned int version:8; // version number (0 = first version) 84 unsigned int version:8; // version number (0 = first version)
85 unsigned int level:4; // optimization level 85 unsigned int level:4; // optimization level
86 unsigned int age:4; // age (in # of sweep steps) 86 unsigned int age:4; // age (in # of sweep steps)
87 87
88 unsigned int state:2; // {alive, zombie, unloaded) 88 unsigned int state:2; // {alive, zombie, unloaded)
89 89
90 unsigned int isUncommonRecompiled:1; // recompiled because of uncommon trap? 90 unsigned int isUncommonRecompiled:1; // recompiled because of uncommon trap?
91 unsigned int isToBeRecompiled:1; // to be recompiled as soon as it matures 91 unsigned int isToBeRecompiled:1; // to be recompiled as soon as it matures
92 unsigned int hasFlushedDependencies:1; // Used for maintenance of dependencies 92 unsigned int hasFlushedDependencies:1; // Used for maintenance of dependencies
93 unsigned int markedForReclamation:1; // Used by NMethodSweeper 93 unsigned int markedForReclamation:1; // Used by NMethodSweeper
94 94
95 unsigned int has_unsafe_access:1; // May fault due to unsafe access. 95 unsigned int has_unsafe_access:1; // May fault due to unsafe access.
96 unsigned int has_method_handle_invokes:1; // Has this method MethodHandle invokes?
96 97
97 void clear(); 98 void clear();
98 }; 99 };
99 100
100 101
407 void unmark_for_reclamation() { check_safepoint(); flags.markedForReclamation = 0; } 408 void unmark_for_reclamation() { check_safepoint(); flags.markedForReclamation = 0; }
408 409
409 bool has_unsafe_access() const { return flags.has_unsafe_access; } 410 bool has_unsafe_access() const { return flags.has_unsafe_access; }
410 void set_has_unsafe_access(bool z) { flags.has_unsafe_access = z; } 411 void set_has_unsafe_access(bool z) { flags.has_unsafe_access = z; }
411 412
413 bool has_method_handle_invokes() const { return flags.has_method_handle_invokes; }
414 void set_has_method_handle_invokes(bool z) { flags.has_method_handle_invokes = z; }
415
412 int level() const { return flags.level; } 416 int level() const { return flags.level; }
413 void set_level(int newLevel) { check_safepoint(); flags.level = newLevel; } 417 void set_level(int newLevel) { check_safepoint(); flags.level = newLevel; }
414 418
415 int comp_level() const { return _comp_level; } 419 int comp_level() const { return _comp_level; }
416 420
539 bool is_deopt_pc(address pc); 543 bool is_deopt_pc(address pc);
540 // Accessor/mutator for the original pc of a frame before a frame was deopted. 544 // Accessor/mutator for the original pc of a frame before a frame was deopted.
541 address get_original_pc(const frame* fr) { return *orig_pc_addr(fr); } 545 address get_original_pc(const frame* fr) { return *orig_pc_addr(fr); }
542 void set_original_pc(const frame* fr, address pc) { *orig_pc_addr(fr) = pc; } 546 void set_original_pc(const frame* fr, address pc) { *orig_pc_addr(fr) = pc; }
543 547
548 // MethodHandle
549 bool is_method_handle_return(address return_pc);
550
544 // jvmti support: 551 // jvmti support:
545 void post_compiled_method_load_event(); 552 void post_compiled_method_load_event();
546 553
547 // verify operations 554 // verify operations
548 void verify(); 555 void verify();